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Diffstat (limited to 'include')
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diff --git a/include/mbedtls/aes.h b/include/mbedtls/aes.h new file mode 100644 index 0000000..77ecffd --- /dev/null +++ b/include/mbedtls/aes.h @@ -0,0 +1,627 @@ +/** + * \file aes.h + * + * \brief This file contains AES definitions and functions. + * + * The Advanced Encryption Standard (AES) specifies a FIPS-approved + * cryptographic algorithm that can be used to protect electronic + * data. + * + * The AES algorithm is a symmetric block cipher that can + * encrypt and decrypt information. For more information, see + * <em>FIPS Publication 197: Advanced Encryption Standard</em> and + * <em>ISO/IEC 18033-2:2006: Information technology -- Security + * techniques -- Encryption algorithms -- Part 2: Asymmetric + * ciphers</em>. + * + * The AES-XTS block mode is standardized by NIST SP 800-38E + * <https://nvlpubs.nist.gov/nistpubs/legacy/sp/nistspecialpublication800-38e.pdf> + * and described in detail by IEEE P1619 + * <https://ieeexplore.ieee.org/servlet/opac?punumber=4375278>. + */ + +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_AES_H +#define MBEDTLS_AES_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" +#include "mbedtls/platform_util.h" + +#include <stddef.h> +#include <stdint.h> + +/* padlock.c and aesni.c rely on these values! */ +#define MBEDTLS_AES_ENCRYPT 1 /**< AES encryption. */ +#define MBEDTLS_AES_DECRYPT 0 /**< AES decryption. */ + +/* Error codes in range 0x0020-0x0022 */ +/** Invalid key length. */ +#define MBEDTLS_ERR_AES_INVALID_KEY_LENGTH -0x0020 +/** Invalid data input length. */ +#define MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH -0x0022 + +/* Error codes in range 0x0021-0x0025 */ +/** Invalid input data. */ +#define MBEDTLS_ERR_AES_BAD_INPUT_DATA -0x0021 + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_AES_ALT) +// Regular implementation +// + +/** + * \brief The AES context-type definition. + */ +typedef struct mbedtls_aes_context { + int MBEDTLS_PRIVATE(nr); /*!< The number of rounds. */ + size_t MBEDTLS_PRIVATE(rk_offset); /*!< The offset in array elements to AES + round keys in the buffer. */ +#if defined(MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH) && !defined(MBEDTLS_PADLOCK_C) + uint32_t MBEDTLS_PRIVATE(buf)[44]; /*!< Aligned data buffer to hold + 10 round keys for 128-bit case. */ +#else + uint32_t MBEDTLS_PRIVATE(buf)[68]; /*!< Unaligned data buffer. This buffer can + hold 32 extra Bytes, which can be used for + one of the following purposes: + <ul><li>Alignment if VIA padlock is + used.</li> + <li>Simplifying key expansion in the 256-bit + case by generating an extra round key. + </li></ul> */ +#endif /* MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH && !MBEDTLS_PADLOCK_C */ +} +mbedtls_aes_context; + +#if defined(MBEDTLS_CIPHER_MODE_XTS) +/** + * \brief The AES XTS context-type definition. + */ +typedef struct mbedtls_aes_xts_context { + mbedtls_aes_context MBEDTLS_PRIVATE(crypt); /*!< The AES context to use for AES block + encryption or decryption. */ + mbedtls_aes_context MBEDTLS_PRIVATE(tweak); /*!< The AES context used for tweak + computation. */ +} mbedtls_aes_xts_context; +#endif /* MBEDTLS_CIPHER_MODE_XTS */ + +#else /* MBEDTLS_AES_ALT */ +#include "aes_alt.h" +#endif /* MBEDTLS_AES_ALT */ + +/** + * \brief This function initializes the specified AES context. + * + * It must be the first API called before using + * the context. + * + * \param ctx The AES context to initialize. This must not be \c NULL. + */ +void mbedtls_aes_init(mbedtls_aes_context *ctx); + +/** + * \brief This function releases and clears the specified AES context. + * + * \param ctx The AES context to clear. + * If this is \c NULL, this function does nothing. + * Otherwise, the context must have been at least initialized. + */ +void mbedtls_aes_free(mbedtls_aes_context *ctx); + +#if defined(MBEDTLS_CIPHER_MODE_XTS) +/** + * \brief This function initializes the specified AES XTS context. + * + * It must be the first API called before using + * the context. + * + * \param ctx The AES XTS context to initialize. This must not be \c NULL. + */ +void mbedtls_aes_xts_init(mbedtls_aes_xts_context *ctx); + +/** + * \brief This function releases and clears the specified AES XTS context. + * + * \param ctx The AES XTS context to clear. + * If this is \c NULL, this function does nothing. + * Otherwise, the context must have been at least initialized. + */ +void mbedtls_aes_xts_free(mbedtls_aes_xts_context *ctx); +#endif /* MBEDTLS_CIPHER_MODE_XTS */ + +/** + * \brief This function sets the encryption key. + * + * \param ctx The AES context to which the key should be bound. + * It must be initialized. + * \param key The encryption key. + * This must be a readable buffer of size \p keybits bits. + * \param keybits The size of data passed in bits. Valid options are: + * <ul><li>128 bits</li> + * <li>192 bits</li> + * <li>256 bits</li></ul> + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_AES_INVALID_KEY_LENGTH on failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_aes_setkey_enc(mbedtls_aes_context *ctx, const unsigned char *key, + unsigned int keybits); + +/** + * \brief This function sets the decryption key. + * + * \param ctx The AES context to which the key should be bound. + * It must be initialized. + * \param key The decryption key. + * This must be a readable buffer of size \p keybits bits. + * \param keybits The size of data passed. Valid options are: + * <ul><li>128 bits</li> + * <li>192 bits</li> + * <li>256 bits</li></ul> + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_AES_INVALID_KEY_LENGTH on failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_aes_setkey_dec(mbedtls_aes_context *ctx, const unsigned char *key, + unsigned int keybits); + +#if defined(MBEDTLS_CIPHER_MODE_XTS) +/** + * \brief This function prepares an XTS context for encryption and + * sets the encryption key. + * + * \param ctx The AES XTS context to which the key should be bound. + * It must be initialized. + * \param key The encryption key. This is comprised of the XTS key1 + * concatenated with the XTS key2. + * This must be a readable buffer of size \p keybits bits. + * \param keybits The size of \p key passed in bits. Valid options are: + * <ul><li>256 bits (each of key1 and key2 is a 128-bit key)</li> + * <li>512 bits (each of key1 and key2 is a 256-bit key)</li></ul> + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_AES_INVALID_KEY_LENGTH on failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_aes_xts_setkey_enc(mbedtls_aes_xts_context *ctx, + const unsigned char *key, + unsigned int keybits); + +/** + * \brief This function prepares an XTS context for decryption and + * sets the decryption key. + * + * \param ctx The AES XTS context to which the key should be bound. + * It must be initialized. + * \param key The decryption key. This is comprised of the XTS key1 + * concatenated with the XTS key2. + * This must be a readable buffer of size \p keybits bits. + * \param keybits The size of \p key passed in bits. Valid options are: + * <ul><li>256 bits (each of key1 and key2 is a 128-bit key)</li> + * <li>512 bits (each of key1 and key2 is a 256-bit key)</li></ul> + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_AES_INVALID_KEY_LENGTH on failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_aes_xts_setkey_dec(mbedtls_aes_xts_context *ctx, + const unsigned char *key, + unsigned int keybits); +#endif /* MBEDTLS_CIPHER_MODE_XTS */ + +/** + * \brief This function performs an AES single-block encryption or + * decryption operation. + * + * It performs the operation defined in the \p mode parameter + * (encrypt or decrypt), on the input data buffer defined in + * the \p input parameter. + * + * mbedtls_aes_init(), and either mbedtls_aes_setkey_enc() or + * mbedtls_aes_setkey_dec() must be called before the first + * call to this API with the same context. + * + * \param ctx The AES context to use for encryption or decryption. + * It must be initialized and bound to a key. + * \param mode The AES operation: #MBEDTLS_AES_ENCRYPT or + * #MBEDTLS_AES_DECRYPT. + * \param input The buffer holding the input data. + * It must be readable and at least \c 16 Bytes long. + * \param output The buffer where the output data will be written. + * It must be writeable and at least \c 16 Bytes long. + + * \return \c 0 on success. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_aes_crypt_ecb(mbedtls_aes_context *ctx, + int mode, + const unsigned char input[16], + unsigned char output[16]); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/** + * \brief This function performs an AES-CBC encryption or decryption operation + * on full blocks. + * + * It performs the operation defined in the \p mode + * parameter (encrypt/decrypt), on the input data buffer defined in + * the \p input parameter. + * + * It can be called as many times as needed, until all the input + * data is processed. mbedtls_aes_init(), and either + * mbedtls_aes_setkey_enc() or mbedtls_aes_setkey_dec() must be called + * before the first call to this API with the same context. + * + * \note This function operates on full blocks, that is, the input size + * must be a multiple of the AES block size of \c 16 Bytes. + * + * \note Upon exit, the content of the IV is updated so that you can + * call the same function again on the next + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If you need to retain the contents of the IV, you should + * either save it manually or use the cipher module instead. + * + * + * \param ctx The AES context to use for encryption or decryption. + * It must be initialized and bound to a key. + * \param mode The AES operation: #MBEDTLS_AES_ENCRYPT or + * #MBEDTLS_AES_DECRYPT. + * \param length The length of the input data in Bytes. This must be a + * multiple of the block size (\c 16 Bytes). + * \param iv Initialization vector (updated after use). + * It must be a readable and writeable buffer of \c 16 Bytes. + * \param input The buffer holding the input data. + * It must be readable and of size \p length Bytes. + * \param output The buffer holding the output data. + * It must be writeable and of size \p length Bytes. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH + * on failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_aes_crypt_cbc(mbedtls_aes_context *ctx, + int mode, + size_t length, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output); +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_XTS) +/** + * \brief This function performs an AES-XTS encryption or decryption + * operation for an entire XTS data unit. + * + * AES-XTS encrypts or decrypts blocks based on their location as + * defined by a data unit number. The data unit number must be + * provided by \p data_unit. + * + * NIST SP 800-38E limits the maximum size of a data unit to 2^20 + * AES blocks. If the data unit is larger than this, this function + * returns #MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH. + * + * \param ctx The AES XTS context to use for AES XTS operations. + * It must be initialized and bound to a key. + * \param mode The AES operation: #MBEDTLS_AES_ENCRYPT or + * #MBEDTLS_AES_DECRYPT. + * \param length The length of a data unit in Bytes. This can be any + * length between 16 bytes and 2^24 bytes inclusive + * (between 1 and 2^20 block cipher blocks). + * \param data_unit The address of the data unit encoded as an array of 16 + * bytes in little-endian format. For disk encryption, this + * is typically the index of the block device sector that + * contains the data. + * \param input The buffer holding the input data (which is an entire + * data unit). This function reads \p length Bytes from \p + * input. + * \param output The buffer holding the output data (which is an entire + * data unit). This function writes \p length Bytes to \p + * output. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH if \p length is + * smaller than an AES block in size (16 Bytes) or if \p + * length is larger than 2^20 blocks (16 MiB). + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_aes_crypt_xts(mbedtls_aes_xts_context *ctx, + int mode, + size_t length, + const unsigned char data_unit[16], + const unsigned char *input, + unsigned char *output); +#endif /* MBEDTLS_CIPHER_MODE_XTS */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +/** + * \brief This function performs an AES-CFB128 encryption or decryption + * operation. + * + * It performs the operation defined in the \p mode + * parameter (encrypt or decrypt), on the input data buffer + * defined in the \p input parameter. + * + * For CFB, you must set up the context with mbedtls_aes_setkey_enc(), + * regardless of whether you are performing an encryption or decryption + * operation, that is, regardless of the \p mode parameter. This is + * because CFB mode uses the same key schedule for encryption and + * decryption. + * + * \note Upon exit, the content of the IV is updated so that you can + * call the same function again on the next + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If you need to retain the contents of the + * IV, you must either save it manually or use the cipher + * module instead. + * + * + * \param ctx The AES context to use for encryption or decryption. + * It must be initialized and bound to a key. + * \param mode The AES operation: #MBEDTLS_AES_ENCRYPT or + * #MBEDTLS_AES_DECRYPT. + * \param length The length of the input data in Bytes. + * \param iv_off The offset in IV (updated after use). + * It must point to a valid \c size_t. + * \param iv The initialization vector (updated after use). + * It must be a readable and writeable buffer of \c 16 Bytes. + * \param input The buffer holding the input data. + * It must be readable and of size \p length Bytes. + * \param output The buffer holding the output data. + * It must be writeable and of size \p length Bytes. + * + * \return \c 0 on success. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_aes_crypt_cfb128(mbedtls_aes_context *ctx, + int mode, + size_t length, + size_t *iv_off, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output); + +/** + * \brief This function performs an AES-CFB8 encryption or decryption + * operation. + * + * It performs the operation defined in the \p mode + * parameter (encrypt/decrypt), on the input data buffer defined + * in the \p input parameter. + * + * Due to the nature of CFB, you must use the same key schedule for + * both encryption and decryption operations. Therefore, you must + * use the context initialized with mbedtls_aes_setkey_enc() for + * both #MBEDTLS_AES_ENCRYPT and #MBEDTLS_AES_DECRYPT. + * + * \note Upon exit, the content of the IV is updated so that you can + * call the same function again on the next + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * + * \param ctx The AES context to use for encryption or decryption. + * It must be initialized and bound to a key. + * \param mode The AES operation: #MBEDTLS_AES_ENCRYPT or + * #MBEDTLS_AES_DECRYPT + * \param length The length of the input data. + * \param iv The initialization vector (updated after use). + * It must be a readable and writeable buffer of \c 16 Bytes. + * \param input The buffer holding the input data. + * It must be readable and of size \p length Bytes. + * \param output The buffer holding the output data. + * It must be writeable and of size \p length Bytes. + * + * \return \c 0 on success. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_aes_crypt_cfb8(mbedtls_aes_context *ctx, + int mode, + size_t length, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output); +#endif /*MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_OFB) +/** + * \brief This function performs an AES-OFB (Output Feedback Mode) + * encryption or decryption operation. + * + * For OFB, you must set up the context with + * mbedtls_aes_setkey_enc(), regardless of whether you are + * performing an encryption or decryption operation. This is + * because OFB mode uses the same key schedule for encryption and + * decryption. + * + * The OFB operation is identical for encryption or decryption, + * therefore no operation mode needs to be specified. + * + * \note Upon exit, the content of iv, the Initialisation Vector, is + * updated so that you can call the same function again on the next + * block(s) of data and get the same result as if it was encrypted + * in one call. This allows a "streaming" usage, by initialising + * iv_off to 0 before the first call, and preserving its value + * between calls. + * + * For non-streaming use, the iv should be initialised on each call + * to a unique value, and iv_off set to 0 on each call. + * + * If you need to retain the contents of the initialisation vector, + * you must either save it manually or use the cipher module + * instead. + * + * \warning For the OFB mode, the initialisation vector must be unique + * every encryption operation. Reuse of an initialisation vector + * will compromise security. + * + * \param ctx The AES context to use for encryption or decryption. + * It must be initialized and bound to a key. + * \param length The length of the input data. + * \param iv_off The offset in IV (updated after use). + * It must point to a valid \c size_t. + * \param iv The initialization vector (updated after use). + * It must be a readable and writeable buffer of \c 16 Bytes. + * \param input The buffer holding the input data. + * It must be readable and of size \p length Bytes. + * \param output The buffer holding the output data. + * It must be writeable and of size \p length Bytes. + * + * \return \c 0 on success. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_aes_crypt_ofb(mbedtls_aes_context *ctx, + size_t length, + size_t *iv_off, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output); + +#endif /* MBEDTLS_CIPHER_MODE_OFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +/** + * \brief This function performs an AES-CTR encryption or decryption + * operation. + * + * Due to the nature of CTR, you must use the same key schedule + * for both encryption and decryption operations. Therefore, you + * must use the context initialized with mbedtls_aes_setkey_enc() + * for both #MBEDTLS_AES_ENCRYPT and #MBEDTLS_AES_DECRYPT. + * + * \warning You must never reuse a nonce value with the same key. Doing so + * would void the encryption for the two messages encrypted with + * the same nonce and key. + * + * There are two common strategies for managing nonces with CTR: + * + * 1. You can handle everything as a single message processed over + * successive calls to this function. In that case, you want to + * set \p nonce_counter and \p nc_off to 0 for the first call, and + * then preserve the values of \p nonce_counter, \p nc_off and \p + * stream_block across calls to this function as they will be + * updated by this function. + * + * With this strategy, you must not encrypt more than 2**128 + * blocks of data with the same key. + * + * 2. You can encrypt separate messages by dividing the \p + * nonce_counter buffer in two areas: the first one used for a + * per-message nonce, handled by yourself, and the second one + * updated by this function internally. + * + * For example, you might reserve the first 12 bytes for the + * per-message nonce, and the last 4 bytes for internal use. In that + * case, before calling this function on a new message you need to + * set the first 12 bytes of \p nonce_counter to your chosen nonce + * value, the last 4 to 0, and \p nc_off to 0 (which will cause \p + * stream_block to be ignored). That way, you can encrypt at most + * 2**96 messages of up to 2**32 blocks each with the same key. + * + * The per-message nonce (or information sufficient to reconstruct + * it) needs to be communicated with the ciphertext and must be unique. + * The recommended way to ensure uniqueness is to use a message + * counter. An alternative is to generate random nonces, but this + * limits the number of messages that can be securely encrypted: + * for example, with 96-bit random nonces, you should not encrypt + * more than 2**32 messages with the same key. + * + * Note that for both strategies, sizes are measured in blocks and + * that an AES block is 16 bytes. + * + * \warning Upon return, \p stream_block contains sensitive data. Its + * content must not be written to insecure storage and should be + * securely discarded as soon as it's no longer needed. + * + * \param ctx The AES context to use for encryption or decryption. + * It must be initialized and bound to a key. + * \param length The length of the input data. + * \param nc_off The offset in the current \p stream_block, for + * resuming within the current cipher stream. The + * offset pointer should be 0 at the start of a stream. + * It must point to a valid \c size_t. + * \param nonce_counter The 128-bit nonce and counter. + * It must be a readable-writeable buffer of \c 16 Bytes. + * \param stream_block The saved stream block for resuming. This is + * overwritten by the function. + * It must be a readable-writeable buffer of \c 16 Bytes. + * \param input The buffer holding the input data. + * It must be readable and of size \p length Bytes. + * \param output The buffer holding the output data. + * It must be writeable and of size \p length Bytes. + * + * \return \c 0 on success. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_aes_crypt_ctr(mbedtls_aes_context *ctx, + size_t length, + size_t *nc_off, + unsigned char nonce_counter[16], + unsigned char stream_block[16], + const unsigned char *input, + unsigned char *output); +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +/** + * \brief Internal AES block encryption function. This is only + * exposed to allow overriding it using + * \c MBEDTLS_AES_ENCRYPT_ALT. + * + * \param ctx The AES context to use for encryption. + * \param input The plaintext block. + * \param output The output (ciphertext) block. + * + * \return \c 0 on success. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_internal_aes_encrypt(mbedtls_aes_context *ctx, + const unsigned char input[16], + unsigned char output[16]); + +/** + * \brief Internal AES block decryption function. This is only + * exposed to allow overriding it using see + * \c MBEDTLS_AES_DECRYPT_ALT. + * + * \param ctx The AES context to use for decryption. + * \param input The ciphertext block. + * \param output The output (plaintext) block. + * + * \return \c 0 on success. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_internal_aes_decrypt(mbedtls_aes_context *ctx, + const unsigned char input[16], + unsigned char output[16]); + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief Checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +MBEDTLS_CHECK_RETURN_CRITICAL +int mbedtls_aes_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* aes.h */ diff --git a/include/mbedtls/aria.h b/include/mbedtls/aria.h new file mode 100644 index 0000000..abb8a3d --- /dev/null +++ b/include/mbedtls/aria.h @@ -0,0 +1,341 @@ +/** + * \file aria.h + * + * \brief ARIA block cipher + * + * The ARIA algorithm is a symmetric block cipher that can encrypt and + * decrypt information. It is defined by the Korean Agency for + * Technology and Standards (KATS) in <em>KS X 1213:2004</em> (in + * Korean, but see http://210.104.33.10/ARIA/index-e.html in English) + * and also described by the IETF in <em>RFC 5794</em>. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_ARIA_H +#define MBEDTLS_ARIA_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stddef.h> +#include <stdint.h> + +#include "mbedtls/platform_util.h" + +#define MBEDTLS_ARIA_ENCRYPT 1 /**< ARIA encryption. */ +#define MBEDTLS_ARIA_DECRYPT 0 /**< ARIA decryption. */ + +#define MBEDTLS_ARIA_BLOCKSIZE 16 /**< ARIA block size in bytes. */ +#define MBEDTLS_ARIA_MAX_ROUNDS 16 /**< Maximum number of rounds in ARIA. */ +#define MBEDTLS_ARIA_MAX_KEYSIZE 32 /**< Maximum size of an ARIA key in bytes. */ + +/** Bad input data. */ +#define MBEDTLS_ERR_ARIA_BAD_INPUT_DATA -0x005C + +/** Invalid data input length. */ +#define MBEDTLS_ERR_ARIA_INVALID_INPUT_LENGTH -0x005E + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_ARIA_ALT) +// Regular implementation +// + +/** + * \brief The ARIA context-type definition. + */ +typedef struct mbedtls_aria_context { + unsigned char MBEDTLS_PRIVATE(nr); /*!< The number of rounds (12, 14 or 16) */ + /*! The ARIA round keys. */ + uint32_t MBEDTLS_PRIVATE(rk)[MBEDTLS_ARIA_MAX_ROUNDS + 1][MBEDTLS_ARIA_BLOCKSIZE / 4]; +} +mbedtls_aria_context; + +#else /* MBEDTLS_ARIA_ALT */ +#include "aria_alt.h" +#endif /* MBEDTLS_ARIA_ALT */ + +/** + * \brief This function initializes the specified ARIA context. + * + * It must be the first API called before using + * the context. + * + * \param ctx The ARIA context to initialize. This must not be \c NULL. + */ +void mbedtls_aria_init(mbedtls_aria_context *ctx); + +/** + * \brief This function releases and clears the specified ARIA context. + * + * \param ctx The ARIA context to clear. This may be \c NULL, in which + * case this function returns immediately. If it is not \c NULL, + * it must point to an initialized ARIA context. + */ +void mbedtls_aria_free(mbedtls_aria_context *ctx); + +/** + * \brief This function sets the encryption key. + * + * \param ctx The ARIA context to which the key should be bound. + * This must be initialized. + * \param key The encryption key. This must be a readable buffer + * of size \p keybits Bits. + * \param keybits The size of \p key in Bits. Valid options are: + * <ul><li>128 bits</li> + * <li>192 bits</li> + * <li>256 bits</li></ul> + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_aria_setkey_enc(mbedtls_aria_context *ctx, + const unsigned char *key, + unsigned int keybits); + +/** + * \brief This function sets the decryption key. + * + * \param ctx The ARIA context to which the key should be bound. + * This must be initialized. + * \param key The decryption key. This must be a readable buffer + * of size \p keybits Bits. + * \param keybits The size of data passed. Valid options are: + * <ul><li>128 bits</li> + * <li>192 bits</li> + * <li>256 bits</li></ul> + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_aria_setkey_dec(mbedtls_aria_context *ctx, + const unsigned char *key, + unsigned int keybits); + +/** + * \brief This function performs an ARIA single-block encryption or + * decryption operation. + * + * It performs encryption or decryption (depending on whether + * the key was set for encryption on decryption) on the input + * data buffer defined in the \p input parameter. + * + * mbedtls_aria_init(), and either mbedtls_aria_setkey_enc() or + * mbedtls_aria_setkey_dec() must be called before the first + * call to this API with the same context. + * + * \param ctx The ARIA context to use for encryption or decryption. + * This must be initialized and bound to a key. + * \param input The 16-Byte buffer holding the input data. + * \param output The 16-Byte buffer holding the output data. + + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_aria_crypt_ecb(mbedtls_aria_context *ctx, + const unsigned char input[MBEDTLS_ARIA_BLOCKSIZE], + unsigned char output[MBEDTLS_ARIA_BLOCKSIZE]); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/** + * \brief This function performs an ARIA-CBC encryption or decryption operation + * on full blocks. + * + * It performs the operation defined in the \p mode + * parameter (encrypt/decrypt), on the input data buffer defined in + * the \p input parameter. + * + * It can be called as many times as needed, until all the input + * data is processed. mbedtls_aria_init(), and either + * mbedtls_aria_setkey_enc() or mbedtls_aria_setkey_dec() must be called + * before the first call to this API with the same context. + * + * \note This function operates on aligned blocks, that is, the input size + * must be a multiple of the ARIA block size of 16 Bytes. + * + * \note Upon exit, the content of the IV is updated so that you can + * call the same function again on the next + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If you need to retain the contents of the IV, you should + * either save it manually or use the cipher module instead. + * + * + * \param ctx The ARIA context to use for encryption or decryption. + * This must be initialized and bound to a key. + * \param mode The mode of operation. This must be either + * #MBEDTLS_ARIA_ENCRYPT for encryption, or + * #MBEDTLS_ARIA_DECRYPT for decryption. + * \param length The length of the input data in Bytes. This must be a + * multiple of the block size (16 Bytes). + * \param iv Initialization vector (updated after use). + * This must be a readable buffer of size 16 Bytes. + * \param input The buffer holding the input data. This must + * be a readable buffer of length \p length Bytes. + * \param output The buffer holding the output data. This must + * be a writable buffer of length \p length Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_aria_crypt_cbc(mbedtls_aria_context *ctx, + int mode, + size_t length, + unsigned char iv[MBEDTLS_ARIA_BLOCKSIZE], + const unsigned char *input, + unsigned char *output); +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +/** + * \brief This function performs an ARIA-CFB128 encryption or decryption + * operation. + * + * It performs the operation defined in the \p mode + * parameter (encrypt or decrypt), on the input data buffer + * defined in the \p input parameter. + * + * For CFB, you must set up the context with mbedtls_aria_setkey_enc(), + * regardless of whether you are performing an encryption or decryption + * operation, that is, regardless of the \p mode parameter. This is + * because CFB mode uses the same key schedule for encryption and + * decryption. + * + * \note Upon exit, the content of the IV is updated so that you can + * call the same function again on the next + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If you need to retain the contents of the + * IV, you must either save it manually or use the cipher + * module instead. + * + * + * \param ctx The ARIA context to use for encryption or decryption. + * This must be initialized and bound to a key. + * \param mode The mode of operation. This must be either + * #MBEDTLS_ARIA_ENCRYPT for encryption, or + * #MBEDTLS_ARIA_DECRYPT for decryption. + * \param length The length of the input data \p input in Bytes. + * \param iv_off The offset in IV (updated after use). + * This must not be larger than 15. + * \param iv The initialization vector (updated after use). + * This must be a readable buffer of size 16 Bytes. + * \param input The buffer holding the input data. This must + * be a readable buffer of length \p length Bytes. + * \param output The buffer holding the output data. This must + * be a writable buffer of length \p length Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_aria_crypt_cfb128(mbedtls_aria_context *ctx, + int mode, + size_t length, + size_t *iv_off, + unsigned char iv[MBEDTLS_ARIA_BLOCKSIZE], + const unsigned char *input, + unsigned char *output); +#endif /* MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +/** + * \brief This function performs an ARIA-CTR encryption or decryption + * operation. + * + * Due to the nature of CTR, you must use the same key schedule + * for both encryption and decryption operations. Therefore, you + * must use the context initialized with mbedtls_aria_setkey_enc() + * for both #MBEDTLS_ARIA_ENCRYPT and #MBEDTLS_ARIA_DECRYPT. + * + * \warning You must never reuse a nonce value with the same key. Doing so + * would void the encryption for the two messages encrypted with + * the same nonce and key. + * + * There are two common strategies for managing nonces with CTR: + * + * 1. You can handle everything as a single message processed over + * successive calls to this function. In that case, you want to + * set \p nonce_counter and \p nc_off to 0 for the first call, and + * then preserve the values of \p nonce_counter, \p nc_off and \p + * stream_block across calls to this function as they will be + * updated by this function. + * + * With this strategy, you must not encrypt more than 2**128 + * blocks of data with the same key. + * + * 2. You can encrypt separate messages by dividing the \p + * nonce_counter buffer in two areas: the first one used for a + * per-message nonce, handled by yourself, and the second one + * updated by this function internally. + * + * For example, you might reserve the first 12 bytes for the + * per-message nonce, and the last 4 bytes for internal use. In that + * case, before calling this function on a new message you need to + * set the first 12 bytes of \p nonce_counter to your chosen nonce + * value, the last 4 to 0, and \p nc_off to 0 (which will cause \p + * stream_block to be ignored). That way, you can encrypt at most + * 2**96 messages of up to 2**32 blocks each with the same key. + * + * The per-message nonce (or information sufficient to reconstruct + * it) needs to be communicated with the ciphertext and must be unique. + * The recommended way to ensure uniqueness is to use a message + * counter. An alternative is to generate random nonces, but this + * limits the number of messages that can be securely encrypted: + * for example, with 96-bit random nonces, you should not encrypt + * more than 2**32 messages with the same key. + * + * Note that for both strategies, sizes are measured in blocks and + * that an ARIA block is 16 bytes. + * + * \warning Upon return, \p stream_block contains sensitive data. Its + * content must not be written to insecure storage and should be + * securely discarded as soon as it's no longer needed. + * + * \param ctx The ARIA context to use for encryption or decryption. + * This must be initialized and bound to a key. + * \param length The length of the input data \p input in Bytes. + * \param nc_off The offset in Bytes in the current \p stream_block, + * for resuming within the current cipher stream. The + * offset pointer should be \c 0 at the start of a + * stream. This must not be larger than \c 15 Bytes. + * \param nonce_counter The 128-bit nonce and counter. This must point to + * a read/write buffer of length \c 16 bytes. + * \param stream_block The saved stream block for resuming. This must + * point to a read/write buffer of length \c 16 bytes. + * This is overwritten by the function. + * \param input The buffer holding the input data. This must + * be a readable buffer of length \p length Bytes. + * \param output The buffer holding the output data. This must + * be a writable buffer of length \p length Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_aria_crypt_ctr(mbedtls_aria_context *ctx, + size_t length, + size_t *nc_off, + unsigned char nonce_counter[MBEDTLS_ARIA_BLOCKSIZE], + unsigned char stream_block[MBEDTLS_ARIA_BLOCKSIZE], + const unsigned char *input, + unsigned char *output); +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief Checkup routine. + * + * \return \c 0 on success, or \c 1 on failure. + */ +int mbedtls_aria_self_test(int verbose); +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* aria.h */ diff --git a/include/mbedtls/asn1.h b/include/mbedtls/asn1.h new file mode 100644 index 0000000..830458b --- /dev/null +++ b/include/mbedtls/asn1.h @@ -0,0 +1,641 @@ +/** + * \file asn1.h + * + * \brief Generic ASN.1 parsing + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_ASN1_H +#define MBEDTLS_ASN1_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" +#include "mbedtls/platform_util.h" + +#include <stddef.h> + +#if defined(MBEDTLS_BIGNUM_C) +#include "mbedtls/bignum.h" +#endif + +/** + * \addtogroup asn1_module + * \{ + */ + +/** + * \name ASN1 Error codes + * These error codes are combined with other error codes for + * higher error granularity. + * e.g. X.509 and PKCS #7 error codes + * ASN1 is a standard to specify data structures. + * \{ + */ +/** Out of data when parsing an ASN1 data structure. */ +#define MBEDTLS_ERR_ASN1_OUT_OF_DATA -0x0060 +/** ASN1 tag was of an unexpected value. */ +#define MBEDTLS_ERR_ASN1_UNEXPECTED_TAG -0x0062 +/** Error when trying to determine the length or invalid length. */ +#define MBEDTLS_ERR_ASN1_INVALID_LENGTH -0x0064 +/** Actual length differs from expected length. */ +#define MBEDTLS_ERR_ASN1_LENGTH_MISMATCH -0x0066 +/** Data is invalid. */ +#define MBEDTLS_ERR_ASN1_INVALID_DATA -0x0068 +/** Memory allocation failed */ +#define MBEDTLS_ERR_ASN1_ALLOC_FAILED -0x006A +/** Buffer too small when writing ASN.1 data structure. */ +#define MBEDTLS_ERR_ASN1_BUF_TOO_SMALL -0x006C + +/** \} name ASN1 Error codes */ + +/** + * \name DER constants + * These constants comply with the DER encoded ASN.1 type tags. + * DER encoding uses hexadecimal representation. + * An example DER sequence is:\n + * - 0x02 -- tag indicating INTEGER + * - 0x01 -- length in octets + * - 0x05 -- value + * Such sequences are typically read into \c ::mbedtls_x509_buf. + * \{ + */ +#define MBEDTLS_ASN1_BOOLEAN 0x01 +#define MBEDTLS_ASN1_INTEGER 0x02 +#define MBEDTLS_ASN1_BIT_STRING 0x03 +#define MBEDTLS_ASN1_OCTET_STRING 0x04 +#define MBEDTLS_ASN1_NULL 0x05 +#define MBEDTLS_ASN1_OID 0x06 +#define MBEDTLS_ASN1_ENUMERATED 0x0A +#define MBEDTLS_ASN1_UTF8_STRING 0x0C +#define MBEDTLS_ASN1_SEQUENCE 0x10 +#define MBEDTLS_ASN1_SET 0x11 +#define MBEDTLS_ASN1_PRINTABLE_STRING 0x13 +#define MBEDTLS_ASN1_T61_STRING 0x14 +#define MBEDTLS_ASN1_IA5_STRING 0x16 +#define MBEDTLS_ASN1_UTC_TIME 0x17 +#define MBEDTLS_ASN1_GENERALIZED_TIME 0x18 +#define MBEDTLS_ASN1_UNIVERSAL_STRING 0x1C +#define MBEDTLS_ASN1_BMP_STRING 0x1E +#define MBEDTLS_ASN1_PRIMITIVE 0x00 +#define MBEDTLS_ASN1_CONSTRUCTED 0x20 +#define MBEDTLS_ASN1_CONTEXT_SPECIFIC 0x80 + +/* Slightly smaller way to check if tag is a string tag + * compared to canonical implementation. */ +#define MBEDTLS_ASN1_IS_STRING_TAG(tag) \ + ((unsigned int) (tag) < 32u && ( \ + ((1u << (tag)) & ((1u << MBEDTLS_ASN1_BMP_STRING) | \ + (1u << MBEDTLS_ASN1_UTF8_STRING) | \ + (1u << MBEDTLS_ASN1_T61_STRING) | \ + (1u << MBEDTLS_ASN1_IA5_STRING) | \ + (1u << MBEDTLS_ASN1_UNIVERSAL_STRING) | \ + (1u << MBEDTLS_ASN1_PRINTABLE_STRING))) != 0)) + +/* + * Bit masks for each of the components of an ASN.1 tag as specified in + * ITU X.690 (08/2015), section 8.1 "General rules for encoding", + * paragraph 8.1.2.2: + * + * Bit 8 7 6 5 1 + * +-------+-----+------------+ + * | Class | P/C | Tag number | + * +-------+-----+------------+ + */ +#define MBEDTLS_ASN1_TAG_CLASS_MASK 0xC0 +#define MBEDTLS_ASN1_TAG_PC_MASK 0x20 +#define MBEDTLS_ASN1_TAG_VALUE_MASK 0x1F + +/** \} name DER constants */ + +/** Returns the size of the binary string, without the trailing \\0 */ +#define MBEDTLS_OID_SIZE(x) (sizeof(x) - 1) + +/** + * Compares an mbedtls_asn1_buf structure to a reference OID. + * + * Only works for 'defined' oid_str values (MBEDTLS_OID_HMAC_SHA1), you cannot use a + * 'unsigned char *oid' here! + */ +#define MBEDTLS_OID_CMP(oid_str, oid_buf) \ + ((MBEDTLS_OID_SIZE(oid_str) != (oid_buf)->len) || \ + memcmp((oid_str), (oid_buf)->p, (oid_buf)->len) != 0) + +#define MBEDTLS_OID_CMP_RAW(oid_str, oid_buf, oid_buf_len) \ + ((MBEDTLS_OID_SIZE(oid_str) != (oid_buf_len)) || \ + memcmp((oid_str), (oid_buf), (oid_buf_len)) != 0) + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \name Functions to parse ASN.1 data structures + * \{ + */ + +/** + * Type-length-value structure that allows for ASN1 using DER. + */ +typedef struct mbedtls_asn1_buf { + int tag; /**< ASN1 type, e.g. MBEDTLS_ASN1_UTF8_STRING. */ + size_t len; /**< ASN1 length, in octets. */ + unsigned char *p; /**< ASN1 data, e.g. in ASCII. */ +} +mbedtls_asn1_buf; + +/** + * Container for ASN1 bit strings. + */ +typedef struct mbedtls_asn1_bitstring { + size_t len; /**< ASN1 length, in octets. */ + unsigned char unused_bits; /**< Number of unused bits at the end of the string */ + unsigned char *p; /**< Raw ASN1 data for the bit string */ +} +mbedtls_asn1_bitstring; + +/** + * Container for a sequence of ASN.1 items + */ +typedef struct mbedtls_asn1_sequence { + mbedtls_asn1_buf buf; /**< Buffer containing the given ASN.1 item. */ + + /** The next entry in the sequence. + * + * The details of memory management for sequences are not documented and + * may change in future versions. Set this field to \p NULL when + * initializing a structure, and do not modify it except via Mbed TLS + * library functions. + */ + struct mbedtls_asn1_sequence *next; +} +mbedtls_asn1_sequence; + +/** + * Container for a sequence or list of 'named' ASN.1 data items + */ +typedef struct mbedtls_asn1_named_data { + mbedtls_asn1_buf oid; /**< The object identifier. */ + mbedtls_asn1_buf val; /**< The named value. */ + + /** The next entry in the sequence. + * + * The details of memory management for named data sequences are not + * documented and may change in future versions. Set this field to \p NULL + * when initializing a structure, and do not modify it except via Mbed TLS + * library functions. + */ + struct mbedtls_asn1_named_data *next; + + /** Merge next item into the current one? + * + * This field exists for the sake of Mbed TLS's X.509 certificate parsing + * code and may change in future versions of the library. + */ + unsigned char MBEDTLS_PRIVATE(next_merged); +} +mbedtls_asn1_named_data; + +#if defined(MBEDTLS_ASN1_PARSE_C) || defined(MBEDTLS_X509_CREATE_C) +/** + * \brief Get the length of an ASN.1 element. + * Updates the pointer to immediately behind the length. + * + * \param p On entry, \c *p points to the first byte of the length, + * i.e. immediately after the tag. + * On successful completion, \c *p points to the first byte + * after the length, i.e. the first byte of the content. + * On error, the value of \c *p is undefined. + * \param end End of data. + * \param len On successful completion, \c *len contains the length + * read from the ASN.1 input. + * + * \return 0 if successful. + * \return #MBEDTLS_ERR_ASN1_OUT_OF_DATA if the ASN.1 element + * would end beyond \p end. + * \return #MBEDTLS_ERR_ASN1_INVALID_LENGTH if the length is unparsable. + */ +int mbedtls_asn1_get_len(unsigned char **p, + const unsigned char *end, + size_t *len); + +/** + * \brief Get the tag and length of the element. + * Check for the requested tag. + * Updates the pointer to immediately behind the tag and length. + * + * \param p On entry, \c *p points to the start of the ASN.1 element. + * On successful completion, \c *p points to the first byte + * after the length, i.e. the first byte of the content. + * On error, the value of \c *p is undefined. + * \param end End of data. + * \param len On successful completion, \c *len contains the length + * read from the ASN.1 input. + * \param tag The expected tag. + * + * \return 0 if successful. + * \return #MBEDTLS_ERR_ASN1_UNEXPECTED_TAG if the data does not start + * with the requested tag. + * \return #MBEDTLS_ERR_ASN1_OUT_OF_DATA if the ASN.1 element + * would end beyond \p end. + * \return #MBEDTLS_ERR_ASN1_INVALID_LENGTH if the length is unparsable. + */ +int mbedtls_asn1_get_tag(unsigned char **p, + const unsigned char *end, + size_t *len, int tag); +#endif /* MBEDTLS_ASN1_PARSE_C || MBEDTLS_X509_CREATE_C */ + +#if defined(MBEDTLS_ASN1_PARSE_C) +/** + * \brief Retrieve a boolean ASN.1 tag and its value. + * Updates the pointer to immediately behind the full tag. + * + * \param p On entry, \c *p points to the start of the ASN.1 element. + * On successful completion, \c *p points to the first byte + * beyond the ASN.1 element. + * On error, the value of \c *p is undefined. + * \param end End of data. + * \param val On success, the parsed value (\c 0 or \c 1). + * + * \return 0 if successful. + * \return An ASN.1 error code if the input does not start with + * a valid ASN.1 BOOLEAN. + */ +int mbedtls_asn1_get_bool(unsigned char **p, + const unsigned char *end, + int *val); + +/** + * \brief Retrieve an integer ASN.1 tag and its value. + * Updates the pointer to immediately behind the full tag. + * + * \param p On entry, \c *p points to the start of the ASN.1 element. + * On successful completion, \c *p points to the first byte + * beyond the ASN.1 element. + * On error, the value of \c *p is undefined. + * \param end End of data. + * \param val On success, the parsed value. + * + * \return 0 if successful. + * \return An ASN.1 error code if the input does not start with + * a valid ASN.1 INTEGER. + * \return #MBEDTLS_ERR_ASN1_INVALID_LENGTH if the parsed value does + * not fit in an \c int. + */ +int mbedtls_asn1_get_int(unsigned char **p, + const unsigned char *end, + int *val); + +/** + * \brief Retrieve an enumerated ASN.1 tag and its value. + * Updates the pointer to immediately behind the full tag. + * + * \param p On entry, \c *p points to the start of the ASN.1 element. + * On successful completion, \c *p points to the first byte + * beyond the ASN.1 element. + * On error, the value of \c *p is undefined. + * \param end End of data. + * \param val On success, the parsed value. + * + * \return 0 if successful. + * \return An ASN.1 error code if the input does not start with + * a valid ASN.1 ENUMERATED. + * \return #MBEDTLS_ERR_ASN1_INVALID_LENGTH if the parsed value does + * not fit in an \c int. + */ +int mbedtls_asn1_get_enum(unsigned char **p, + const unsigned char *end, + int *val); + +/** + * \brief Retrieve a bitstring ASN.1 tag and its value. + * Updates the pointer to immediately behind the full tag. + * + * \param p On entry, \c *p points to the start of the ASN.1 element. + * On successful completion, \c *p is equal to \p end. + * On error, the value of \c *p is undefined. + * \param end End of data. + * \param bs On success, ::mbedtls_asn1_bitstring information about + * the parsed value. + * + * \return 0 if successful. + * \return #MBEDTLS_ERR_ASN1_LENGTH_MISMATCH if the input contains + * extra data after a valid BIT STRING. + * \return An ASN.1 error code if the input does not start with + * a valid ASN.1 BIT STRING. + */ +int mbedtls_asn1_get_bitstring(unsigned char **p, const unsigned char *end, + mbedtls_asn1_bitstring *bs); + +/** + * \brief Retrieve a bitstring ASN.1 tag without unused bits and its + * value. + * Updates the pointer to the beginning of the bit/octet string. + * + * \param p On entry, \c *p points to the start of the ASN.1 element. + * On successful completion, \c *p points to the first byte + * of the content of the BIT STRING. + * On error, the value of \c *p is undefined. + * \param end End of data. + * \param len On success, \c *len is the length of the content in bytes. + * + * \return 0 if successful. + * \return #MBEDTLS_ERR_ASN1_INVALID_DATA if the input starts with + * a valid BIT STRING with a nonzero number of unused bits. + * \return An ASN.1 error code if the input does not start with + * a valid ASN.1 BIT STRING. + */ +int mbedtls_asn1_get_bitstring_null(unsigned char **p, + const unsigned char *end, + size_t *len); + +/** + * \brief Parses and splits an ASN.1 "SEQUENCE OF <tag>". + * Updates the pointer to immediately behind the full sequence tag. + * + * This function allocates memory for the sequence elements. You can free + * the allocated memory with mbedtls_asn1_sequence_free(). + * + * \note On error, this function may return a partial list in \p cur. + * You must set `cur->next = NULL` before calling this function! + * Otherwise it is impossible to distinguish a previously non-null + * pointer from a pointer to an object allocated by this function. + * + * \note If the sequence is empty, this function does not modify + * \c *cur. If the sequence is valid and non-empty, this + * function sets `cur->buf.tag` to \p tag. This allows + * callers to distinguish between an empty sequence and + * a one-element sequence. + * + * \param p On entry, \c *p points to the start of the ASN.1 element. + * On successful completion, \c *p is equal to \p end. + * On error, the value of \c *p is undefined. + * \param end End of data. + * \param cur A ::mbedtls_asn1_sequence which this function fills. + * When this function returns, \c *cur is the head of a linked + * list. Each node in this list is allocated with + * mbedtls_calloc() apart from \p cur itself, and should + * therefore be freed with mbedtls_free(). + * The list describes the content of the sequence. + * The head of the list (i.e. \c *cur itself) describes the + * first element, `*cur->next` describes the second element, etc. + * For each element, `buf.tag == tag`, `buf.len` is the length + * of the content of the content of the element, and `buf.p` + * points to the first byte of the content (i.e. immediately + * past the length of the element). + * Note that list elements may be allocated even on error. + * \param tag Each element of the sequence must have this tag. + * + * \return 0 if successful. + * \return #MBEDTLS_ERR_ASN1_LENGTH_MISMATCH if the input contains + * extra data after a valid SEQUENCE OF \p tag. + * \return #MBEDTLS_ERR_ASN1_UNEXPECTED_TAG if the input starts with + * an ASN.1 SEQUENCE in which an element has a tag that + * is different from \p tag. + * \return #MBEDTLS_ERR_ASN1_ALLOC_FAILED if a memory allocation failed. + * \return An ASN.1 error code if the input does not start with + * a valid ASN.1 SEQUENCE. + */ +int mbedtls_asn1_get_sequence_of(unsigned char **p, + const unsigned char *end, + mbedtls_asn1_sequence *cur, + int tag); +/** + * \brief Free a heap-allocated linked list presentation of + * an ASN.1 sequence, including the first element. + * + * There are two common ways to manage the memory used for the representation + * of a parsed ASN.1 sequence: + * - Allocate a head node `mbedtls_asn1_sequence *head` with mbedtls_calloc(). + * Pass this node as the `cur` argument to mbedtls_asn1_get_sequence_of(). + * When you have finished processing the sequence, + * call mbedtls_asn1_sequence_free() on `head`. + * - Allocate a head node `mbedtls_asn1_sequence *head` in any manner, + * for example on the stack. Make sure that `head->next == NULL`. + * Pass `head` as the `cur` argument to mbedtls_asn1_get_sequence_of(). + * When you have finished processing the sequence, + * call mbedtls_asn1_sequence_free() on `head->cur`, + * then free `head` itself in the appropriate manner. + * + * \param seq The address of the first sequence component. This may + * be \c NULL, in which case this functions returns + * immediately. + */ +void mbedtls_asn1_sequence_free(mbedtls_asn1_sequence *seq); + +/** + * \brief Traverse an ASN.1 SEQUENCE container and + * call a callback for each entry. + * + * This function checks that the input is a SEQUENCE of elements that + * each have a "must" tag, and calls a callback function on the elements + * that have a "may" tag. + * + * For example, to validate that the input is a SEQUENCE of `tag1` and call + * `cb` on each element, use + * ``` + * mbedtls_asn1_traverse_sequence_of(&p, end, 0xff, tag1, 0, 0, cb, ctx); + * ``` + * + * To validate that the input is a SEQUENCE of ANY and call `cb` on + * each element, use + * ``` + * mbedtls_asn1_traverse_sequence_of(&p, end, 0, 0, 0, 0, cb, ctx); + * ``` + * + * To validate that the input is a SEQUENCE of CHOICE {NULL, OCTET STRING} + * and call `cb` on each element that is an OCTET STRING, use + * ``` + * mbedtls_asn1_traverse_sequence_of(&p, end, 0xfe, 0x04, 0xff, 0x04, cb, ctx); + * ``` + * + * The callback is called on the elements with a "may" tag from left to + * right. If the input is not a valid SEQUENCE of elements with a "must" tag, + * the callback is called on the elements up to the leftmost point where + * the input is invalid. + * + * \warning This function is still experimental and may change + * at any time. + * + * \param p The address of the pointer to the beginning of + * the ASN.1 SEQUENCE header. This is updated to + * point to the end of the ASN.1 SEQUENCE container + * on a successful invocation. + * \param end The end of the ASN.1 SEQUENCE container. + * \param tag_must_mask A mask to be applied to the ASN.1 tags found within + * the SEQUENCE before comparing to \p tag_must_val. + * \param tag_must_val The required value of each ASN.1 tag found in the + * SEQUENCE, after masking with \p tag_must_mask. + * Mismatching tags lead to an error. + * For example, a value of \c 0 for both \p tag_must_mask + * and \p tag_must_val means that every tag is allowed, + * while a value of \c 0xFF for \p tag_must_mask means + * that \p tag_must_val is the only allowed tag. + * \param tag_may_mask A mask to be applied to the ASN.1 tags found within + * the SEQUENCE before comparing to \p tag_may_val. + * \param tag_may_val The desired value of each ASN.1 tag found in the + * SEQUENCE, after masking with \p tag_may_mask. + * Mismatching tags will be silently ignored. + * For example, a value of \c 0 for \p tag_may_mask and + * \p tag_may_val means that any tag will be considered, + * while a value of \c 0xFF for \p tag_may_mask means + * that all tags with value different from \p tag_may_val + * will be ignored. + * \param cb The callback to trigger for each component + * in the ASN.1 SEQUENCE that matches \p tag_may_val. + * The callback function is called with the following + * parameters: + * - \p ctx. + * - The tag of the current element. + * - A pointer to the start of the current element's + * content inside the input. + * - The length of the content of the current element. + * If the callback returns a non-zero value, + * the function stops immediately, + * forwarding the callback's return value. + * \param ctx The context to be passed to the callback \p cb. + * + * \return \c 0 if successful the entire ASN.1 SEQUENCE + * was traversed without parsing or callback errors. + * \return #MBEDTLS_ERR_ASN1_LENGTH_MISMATCH if the input + * contains extra data after a valid SEQUENCE + * of elements with an accepted tag. + * \return #MBEDTLS_ERR_ASN1_UNEXPECTED_TAG if the input starts + * with an ASN.1 SEQUENCE in which an element has a tag + * that is not accepted. + * \return An ASN.1 error code if the input does not start with + * a valid ASN.1 SEQUENCE. + * \return A non-zero error code forwarded from the callback + * \p cb in case the latter returns a non-zero value. + */ +int mbedtls_asn1_traverse_sequence_of( + unsigned char **p, + const unsigned char *end, + unsigned char tag_must_mask, unsigned char tag_must_val, + unsigned char tag_may_mask, unsigned char tag_may_val, + int (*cb)(void *ctx, int tag, + unsigned char *start, size_t len), + void *ctx); + +#if defined(MBEDTLS_BIGNUM_C) +/** + * \brief Retrieve an integer ASN.1 tag and its value. + * Updates the pointer to immediately behind the full tag. + * + * \param p On entry, \c *p points to the start of the ASN.1 element. + * On successful completion, \c *p points to the first byte + * beyond the ASN.1 element. + * On error, the value of \c *p is undefined. + * \param end End of data. + * \param X On success, the parsed value. + * + * \return 0 if successful. + * \return An ASN.1 error code if the input does not start with + * a valid ASN.1 INTEGER. + * \return #MBEDTLS_ERR_ASN1_INVALID_LENGTH if the parsed value does + * not fit in an \c int. + * \return An MPI error code if the parsed value is too large. + */ +int mbedtls_asn1_get_mpi(unsigned char **p, + const unsigned char *end, + mbedtls_mpi *X); +#endif /* MBEDTLS_BIGNUM_C */ + +/** + * \brief Retrieve an AlgorithmIdentifier ASN.1 sequence. + * Updates the pointer to immediately behind the full + * AlgorithmIdentifier. + * + * \param p On entry, \c *p points to the start of the ASN.1 element. + * On successful completion, \c *p points to the first byte + * beyond the AlgorithmIdentifier element. + * On error, the value of \c *p is undefined. + * \param end End of data. + * \param alg The buffer to receive the OID. + * \param params The buffer to receive the parameters. + * This is zeroized if there are no parameters. + * + * \return 0 if successful or a specific ASN.1 or MPI error code. + */ +int mbedtls_asn1_get_alg(unsigned char **p, + const unsigned char *end, + mbedtls_asn1_buf *alg, mbedtls_asn1_buf *params); + +/** + * \brief Retrieve an AlgorithmIdentifier ASN.1 sequence with NULL or no + * params. + * Updates the pointer to immediately behind the full + * AlgorithmIdentifier. + * + * \param p On entry, \c *p points to the start of the ASN.1 element. + * On successful completion, \c *p points to the first byte + * beyond the AlgorithmIdentifier element. + * On error, the value of \c *p is undefined. + * \param end End of data. + * \param alg The buffer to receive the OID. + * + * \return 0 if successful or a specific ASN.1 or MPI error code. + */ +int mbedtls_asn1_get_alg_null(unsigned char **p, + const unsigned char *end, + mbedtls_asn1_buf *alg); + +/** + * \brief Find a specific named_data entry in a sequence or list based on + * the OID. + * + * \param list The list to seek through + * \param oid The OID to look for + * \param len Size of the OID + * + * \return NULL if not found, or a pointer to the existing entry. + */ +const mbedtls_asn1_named_data *mbedtls_asn1_find_named_data(const mbedtls_asn1_named_data *list, + const char *oid, size_t len); + +#if !defined(MBEDTLS_DEPRECATED_REMOVED) +/** + * \brief Free a mbedtls_asn1_named_data entry + * + * \deprecated This function is deprecated and will be removed in a + * future version of the library. + * Please use mbedtls_asn1_free_named_data_list() + * or mbedtls_asn1_free_named_data_list_shallow(). + * + * \param entry The named data entry to free. + * This function calls mbedtls_free() on + * `entry->oid.p` and `entry->val.p`. + */ +void MBEDTLS_DEPRECATED mbedtls_asn1_free_named_data(mbedtls_asn1_named_data *entry); +#endif /* MBEDTLS_DEPRECATED_REMOVED */ + +/** + * \brief Free all entries in a mbedtls_asn1_named_data list. + * + * \param head Pointer to the head of the list of named data entries to free. + * This function calls mbedtls_free() on + * `entry->oid.p` and `entry->val.p` and then on `entry` + * for each list entry, and sets \c *head to \c NULL. + */ +void mbedtls_asn1_free_named_data_list(mbedtls_asn1_named_data **head); + +/** + * \brief Free all shallow entries in a mbedtls_asn1_named_data list, + * but do not free internal pointer targets. + * + * \param name Head of the list of named data entries to free. + * This function calls mbedtls_free() on each list element. + */ +void mbedtls_asn1_free_named_data_list_shallow(mbedtls_asn1_named_data *name); + +/** \} name Functions to parse ASN.1 data structures */ +/** \} addtogroup asn1_module */ + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_ASN1_PARSE_C */ + +#endif /* asn1.h */ diff --git a/include/mbedtls/asn1write.h b/include/mbedtls/asn1write.h new file mode 100644 index 0000000..7af4aba --- /dev/null +++ b/include/mbedtls/asn1write.h @@ -0,0 +1,389 @@ +/** + * \file asn1write.h + * + * \brief ASN.1 buffer writing functionality + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_ASN1_WRITE_H +#define MBEDTLS_ASN1_WRITE_H + +#include "mbedtls/build_info.h" + +#include "mbedtls/asn1.h" + +#define MBEDTLS_ASN1_CHK_ADD(g, f) \ + do \ + { \ + if ((ret = (f)) < 0) \ + return ret; \ + else \ + (g) += ret; \ + } while (0) + +#define MBEDTLS_ASN1_CHK_CLEANUP_ADD(g, f) \ + do \ + { \ + if ((ret = (f)) < 0) \ + goto cleanup; \ + else \ + (g) += ret; \ + } while (0) + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(MBEDTLS_ASN1_WRITE_C) || defined(MBEDTLS_X509_USE_C) +/** + * \brief Write a length field in ASN.1 format. + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param len The length value to write. + * + * \return The number of bytes written to \p p on success. + * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. + */ +int mbedtls_asn1_write_len(unsigned char **p, const unsigned char *start, + size_t len); +/** + * \brief Write an ASN.1 tag in ASN.1 format. + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param tag The tag to write. + * + * \return The number of bytes written to \p p on success. + * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. + */ +int mbedtls_asn1_write_tag(unsigned char **p, const unsigned char *start, + unsigned char tag); +#endif /* MBEDTLS_ASN1_WRITE_C || MBEDTLS_X509_USE_C */ + +#if defined(MBEDTLS_ASN1_WRITE_C) +/** + * \brief Write raw buffer data. + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param buf The data buffer to write. + * \param size The length of the data buffer. + * + * \return The number of bytes written to \p p on success. + * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. + */ +int mbedtls_asn1_write_raw_buffer(unsigned char **p, const unsigned char *start, + const unsigned char *buf, size_t size); + +#if defined(MBEDTLS_BIGNUM_C) +/** + * \brief Write an arbitrary-precision number (#MBEDTLS_ASN1_INTEGER) + * in ASN.1 format. + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param X The MPI to write. + * It must be non-negative. + * + * \return The number of bytes written to \p p on success. + * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. + */ +int mbedtls_asn1_write_mpi(unsigned char **p, const unsigned char *start, + const mbedtls_mpi *X); +#endif /* MBEDTLS_BIGNUM_C */ + +/** + * \brief Write a NULL tag (#MBEDTLS_ASN1_NULL) with zero data + * in ASN.1 format. + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * + * \return The number of bytes written to \p p on success. + * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. + */ +int mbedtls_asn1_write_null(unsigned char **p, const unsigned char *start); + +/** + * \brief Write an OID tag (#MBEDTLS_ASN1_OID) and data + * in ASN.1 format. + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param oid The OID to write. + * \param oid_len The length of the OID. + * + * \return The number of bytes written to \p p on success. + * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. + */ +int mbedtls_asn1_write_oid(unsigned char **p, const unsigned char *start, + const char *oid, size_t oid_len); + +/** + * \brief Write an AlgorithmIdentifier sequence in ASN.1 format. + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param oid The OID of the algorithm to write. + * \param oid_len The length of the algorithm's OID. + * \param par_len The length of the parameters, which must be already written. + * If 0, NULL parameters are added + * + * \return The number of bytes written to \p p on success. + * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. + */ +int mbedtls_asn1_write_algorithm_identifier(unsigned char **p, + const unsigned char *start, + const char *oid, size_t oid_len, + size_t par_len); + +/** + * \brief Write an AlgorithmIdentifier sequence in ASN.1 format. + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param oid The OID of the algorithm to write. + * \param oid_len The length of the algorithm's OID. + * \param par_len The length of the parameters, which must be already written. + * \param has_par If there are any parameters. If 0, par_len must be 0. If 1 + * and \p par_len is 0, NULL parameters are added. + * + * \return The number of bytes written to \p p on success. + * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. + */ +int mbedtls_asn1_write_algorithm_identifier_ext(unsigned char **p, + const unsigned char *start, + const char *oid, size_t oid_len, + size_t par_len, int has_par); + +/** + * \brief Write a boolean tag (#MBEDTLS_ASN1_BOOLEAN) and value + * in ASN.1 format. + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param boolean The boolean value to write, either \c 0 or \c 1. + * + * \return The number of bytes written to \p p on success. + * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. + */ +int mbedtls_asn1_write_bool(unsigned char **p, const unsigned char *start, + int boolean); + +/** + * \brief Write an int tag (#MBEDTLS_ASN1_INTEGER) and value + * in ASN.1 format. + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param val The integer value to write. + * It must be non-negative. + * + * \return The number of bytes written to \p p on success. + * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. + */ +int mbedtls_asn1_write_int(unsigned char **p, const unsigned char *start, int val); + +/** + * \brief Write an enum tag (#MBEDTLS_ASN1_ENUMERATED) and value + * in ASN.1 format. + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param val The integer value to write. + * + * \return The number of bytes written to \p p on success. + * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. + */ +int mbedtls_asn1_write_enum(unsigned char **p, const unsigned char *start, int val); + +/** + * \brief Write a string in ASN.1 format using a specific + * string encoding tag. + + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param tag The string encoding tag to write, e.g. + * #MBEDTLS_ASN1_UTF8_STRING. + * \param text The string to write. + * \param text_len The length of \p text in bytes (which might + * be strictly larger than the number of characters). + * + * \return The number of bytes written to \p p on success. + * \return A negative error code on failure. + */ +int mbedtls_asn1_write_tagged_string(unsigned char **p, const unsigned char *start, + int tag, const char *text, + size_t text_len); + +/** + * \brief Write a string in ASN.1 format using the PrintableString + * string encoding tag (#MBEDTLS_ASN1_PRINTABLE_STRING). + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param text The string to write. + * \param text_len The length of \p text in bytes (which might + * be strictly larger than the number of characters). + * + * \return The number of bytes written to \p p on success. + * \return A negative error code on failure. + */ +int mbedtls_asn1_write_printable_string(unsigned char **p, + const unsigned char *start, + const char *text, size_t text_len); + +/** + * \brief Write a UTF8 string in ASN.1 format using the UTF8String + * string encoding tag (#MBEDTLS_ASN1_UTF8_STRING). + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param text The string to write. + * \param text_len The length of \p text in bytes (which might + * be strictly larger than the number of characters). + * + * \return The number of bytes written to \p p on success. + * \return A negative error code on failure. + */ +int mbedtls_asn1_write_utf8_string(unsigned char **p, const unsigned char *start, + const char *text, size_t text_len); + +/** + * \brief Write a string in ASN.1 format using the IA5String + * string encoding tag (#MBEDTLS_ASN1_IA5_STRING). + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param text The string to write. + * \param text_len The length of \p text in bytes (which might + * be strictly larger than the number of characters). + * + * \return The number of bytes written to \p p on success. + * \return A negative error code on failure. + */ +int mbedtls_asn1_write_ia5_string(unsigned char **p, const unsigned char *start, + const char *text, size_t text_len); + +/** + * \brief Write a bitstring tag (#MBEDTLS_ASN1_BIT_STRING) and + * value in ASN.1 format. + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param buf The bitstring to write. + * \param bits The total number of bits in the bitstring. + * + * \return The number of bytes written to \p p on success. + * \return A negative error code on failure. + */ +int mbedtls_asn1_write_bitstring(unsigned char **p, const unsigned char *start, + const unsigned char *buf, size_t bits); + +/** + * \brief This function writes a named bitstring tag + * (#MBEDTLS_ASN1_BIT_STRING) and value in ASN.1 format. + * + * As stated in RFC 5280 Appendix B, trailing zeroes are + * omitted when encoding named bitstrings in DER. + * + * \note This function works backwards within the data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer which is used for bounds-checking. + * \param buf The bitstring to write. + * \param bits The total number of bits in the bitstring. + * + * \return The number of bytes written to \p p on success. + * \return A negative error code on failure. + */ +int mbedtls_asn1_write_named_bitstring(unsigned char **p, + const unsigned char *start, + const unsigned char *buf, + size_t bits); + +/** + * \brief Write an octet string tag (#MBEDTLS_ASN1_OCTET_STRING) + * and value in ASN.1 format. + * + * \note This function works backwards in data buffer. + * + * \param p The reference to the current position pointer. + * \param start The start of the buffer, for bounds-checking. + * \param buf The buffer holding the data to write. + * \param size The length of the data buffer \p buf. + * + * \return The number of bytes written to \p p on success. + * \return A negative error code on failure. + */ +int mbedtls_asn1_write_octet_string(unsigned char **p, const unsigned char *start, + const unsigned char *buf, size_t size); + +/** + * \brief Create or find a specific named_data entry for writing in a + * sequence or list based on the OID. If not already in there, + * a new entry is added to the head of the list. + * Warning: Destructive behaviour for the val data! + * + * \param list The pointer to the location of the head of the list to seek + * through (will be updated in case of a new entry). + * \param oid The OID to look for. + * \param oid_len The size of the OID. + * \param val The associated data to store. If this is \c NULL, + * no data is copied to the new or existing buffer. + * \param val_len The minimum length of the data buffer needed. + * If this is 0, do not allocate a buffer for the associated + * data. + * If the OID was already present, enlarge, shrink or free + * the existing buffer to fit \p val_len. + * + * \return A pointer to the new / existing entry on success. + * \return \c NULL if there was a memory allocation error. + */ +mbedtls_asn1_named_data *mbedtls_asn1_store_named_data(mbedtls_asn1_named_data **list, + const char *oid, size_t oid_len, + const unsigned char *val, + size_t val_len); + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_ASN1_WRITE_C */ + +#endif /* MBEDTLS_ASN1_WRITE_H */ diff --git a/include/mbedtls/base64.h b/include/mbedtls/base64.h new file mode 100644 index 0000000..8f459b7 --- /dev/null +++ b/include/mbedtls/base64.h @@ -0,0 +1,82 @@ +/** + * \file base64.h + * + * \brief RFC 1521 base64 encoding/decoding + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_BASE64_H +#define MBEDTLS_BASE64_H + +#include "mbedtls/build_info.h" + +#include <stddef.h> + +/** Output buffer too small. */ +#define MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL -0x002A +/** Invalid character in input. */ +#define MBEDTLS_ERR_BASE64_INVALID_CHARACTER -0x002C + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Encode a buffer into base64 format + * + * \param dst destination buffer + * \param dlen size of the destination buffer + * \param olen number of bytes written + * \param src source buffer + * \param slen amount of data to be encoded + * + * \return 0 if successful, or MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL. + * *olen is always updated to reflect the amount + * of data that has (or would have) been written. + * If that length cannot be represented, then no data is + * written to the buffer and *olen is set to the maximum + * length representable as a size_t. + * + * \note Call this function with dlen = 0 to obtain the + * required buffer size in *olen + */ +int mbedtls_base64_encode(unsigned char *dst, size_t dlen, size_t *olen, + const unsigned char *src, size_t slen); + +/** + * \brief Decode a base64-formatted buffer + * + * \param dst destination buffer (can be NULL for checking size) + * \param dlen size of the destination buffer + * \param olen number of bytes written + * \param src source buffer + * \param slen amount of data to be decoded + * + * \return 0 if successful, MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL, or + * MBEDTLS_ERR_BASE64_INVALID_CHARACTER if the input data is + * not correct. *olen is always updated to reflect the amount + * of data that has (or would have) been written. + * + * \note Call this function with *dst = NULL or dlen = 0 to obtain + * the required buffer size in *olen + */ +int mbedtls_base64_decode(unsigned char *dst, size_t dlen, size_t *olen, + const unsigned char *src, size_t slen); + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_base64_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* base64.h */ diff --git a/include/mbedtls/bignum.h b/include/mbedtls/bignum.h new file mode 100644 index 0000000..931e06d --- /dev/null +++ b/include/mbedtls/bignum.h @@ -0,0 +1,1084 @@ +/** + * \file bignum.h + * + * \brief Multi-precision integer library + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_BIGNUM_H +#define MBEDTLS_BIGNUM_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stddef.h> +#include <stdint.h> + +#if defined(MBEDTLS_FS_IO) +#include <stdio.h> +#endif + +/** An error occurred while reading from or writing to a file. */ +#define MBEDTLS_ERR_MPI_FILE_IO_ERROR -0x0002 +/** Bad input parameters to function. */ +#define MBEDTLS_ERR_MPI_BAD_INPUT_DATA -0x0004 +/** There is an invalid character in the digit string. */ +#define MBEDTLS_ERR_MPI_INVALID_CHARACTER -0x0006 +/** The buffer is too small to write to. */ +#define MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL -0x0008 +/** The input arguments are negative or result in illegal output. */ +#define MBEDTLS_ERR_MPI_NEGATIVE_VALUE -0x000A +/** The input argument for division is zero, which is not allowed. */ +#define MBEDTLS_ERR_MPI_DIVISION_BY_ZERO -0x000C +/** The input arguments are not acceptable. */ +#define MBEDTLS_ERR_MPI_NOT_ACCEPTABLE -0x000E +/** Memory allocation failed. */ +#define MBEDTLS_ERR_MPI_ALLOC_FAILED -0x0010 + +#define MBEDTLS_MPI_CHK(f) \ + do \ + { \ + if ((ret = (f)) != 0) \ + goto cleanup; \ + } while (0) + +/* + * Maximum size MPIs are allowed to grow to in number of limbs. + */ +#define MBEDTLS_MPI_MAX_LIMBS 10000 + +#if !defined(MBEDTLS_MPI_WINDOW_SIZE) +/* + * Maximum window size used for modular exponentiation. Default: 2 + * Minimum value: 1. Maximum value: 6. + * + * Result is an array of ( 2 ** MBEDTLS_MPI_WINDOW_SIZE ) MPIs used + * for the sliding window calculation. (So 64 by default) + * + * Reduction in size, reduces speed. + */ +#define MBEDTLS_MPI_WINDOW_SIZE 2 /**< Maximum window size used. */ +#endif /* !MBEDTLS_MPI_WINDOW_SIZE */ + +#if !defined(MBEDTLS_MPI_MAX_SIZE) +/* + * Maximum size of MPIs allowed in bits and bytes for user-MPIs. + * ( Default: 512 bytes => 4096 bits, Maximum tested: 2048 bytes => 16384 bits ) + * + * Note: Calculations can temporarily result in larger MPIs. So the number + * of limbs required (MBEDTLS_MPI_MAX_LIMBS) is higher. + */ +#define MBEDTLS_MPI_MAX_SIZE 1024 /**< Maximum number of bytes for usable MPIs. */ +#endif /* !MBEDTLS_MPI_MAX_SIZE */ + +#define MBEDTLS_MPI_MAX_BITS (8 * MBEDTLS_MPI_MAX_SIZE) /**< Maximum number of bits for usable MPIs. */ + +/* + * When reading from files with mbedtls_mpi_read_file() and writing to files with + * mbedtls_mpi_write_file() the buffer should have space + * for a (short) label, the MPI (in the provided radix), the newline + * characters and the '\0'. + * + * By default we assume at least a 10 char label, a minimum radix of 10 + * (decimal) and a maximum of 4096 bit numbers (1234 decimal chars). + * Autosized at compile time for at least a 10 char label, a minimum radix + * of 10 (decimal) for a number of MBEDTLS_MPI_MAX_BITS size. + * + * This used to be statically sized to 1250 for a maximum of 4096 bit + * numbers (1234 decimal chars). + * + * Calculate using the formula: + * MBEDTLS_MPI_RW_BUFFER_SIZE = ceil(MBEDTLS_MPI_MAX_BITS / ln(10) * ln(2)) + + * LabelSize + 6 + */ +#define MBEDTLS_MPI_MAX_BITS_SCALE100 (100 * MBEDTLS_MPI_MAX_BITS) +#define MBEDTLS_LN_2_DIV_LN_10_SCALE100 332 +#define MBEDTLS_MPI_RW_BUFFER_SIZE (((MBEDTLS_MPI_MAX_BITS_SCALE100 + \ + MBEDTLS_LN_2_DIV_LN_10_SCALE100 - 1) / \ + MBEDTLS_LN_2_DIV_LN_10_SCALE100) + 10 + 6) + +/* + * Define the base integer type, architecture-wise. + * + * 32 or 64-bit integer types can be forced regardless of the underlying + * architecture by defining MBEDTLS_HAVE_INT32 or MBEDTLS_HAVE_INT64 + * respectively and undefining MBEDTLS_HAVE_ASM. + * + * Double-width integers (e.g. 128-bit in 64-bit architectures) can be + * disabled by defining MBEDTLS_NO_UDBL_DIVISION. + */ +#if !defined(MBEDTLS_HAVE_INT32) + #if defined(_MSC_VER) && defined(_M_AMD64) +/* Always choose 64-bit when using MSC */ + #if !defined(MBEDTLS_HAVE_INT64) + #define MBEDTLS_HAVE_INT64 + #endif /* !MBEDTLS_HAVE_INT64 */ +typedef int64_t mbedtls_mpi_sint; +typedef uint64_t mbedtls_mpi_uint; +#define MBEDTLS_MPI_UINT_MAX UINT64_MAX + #elif defined(__GNUC__) && ( \ + defined(__amd64__) || defined(__x86_64__) || \ + defined(__ppc64__) || defined(__powerpc64__) || \ + defined(__ia64__) || defined(__alpha__) || \ + (defined(__sparc__) && defined(__arch64__)) || \ + defined(__s390x__) || defined(__mips64) || \ + defined(__aarch64__)) + #if !defined(MBEDTLS_HAVE_INT64) + #define MBEDTLS_HAVE_INT64 + #endif /* MBEDTLS_HAVE_INT64 */ +typedef int64_t mbedtls_mpi_sint; +typedef uint64_t mbedtls_mpi_uint; +#define MBEDTLS_MPI_UINT_MAX UINT64_MAX + #if !defined(MBEDTLS_NO_UDBL_DIVISION) +/* mbedtls_t_udbl defined as 128-bit unsigned int */ +typedef unsigned int mbedtls_t_udbl __attribute__((mode(TI))); + #define MBEDTLS_HAVE_UDBL + #endif /* !MBEDTLS_NO_UDBL_DIVISION */ + #elif defined(__ARMCC_VERSION) && defined(__aarch64__) +/* + * __ARMCC_VERSION is defined for both armcc and armclang and + * __aarch64__ is only defined by armclang when compiling 64-bit code + */ + #if !defined(MBEDTLS_HAVE_INT64) + #define MBEDTLS_HAVE_INT64 + #endif /* !MBEDTLS_HAVE_INT64 */ +typedef int64_t mbedtls_mpi_sint; +typedef uint64_t mbedtls_mpi_uint; +#define MBEDTLS_MPI_UINT_MAX UINT64_MAX + #if !defined(MBEDTLS_NO_UDBL_DIVISION) +/* mbedtls_t_udbl defined as 128-bit unsigned int */ +typedef __uint128_t mbedtls_t_udbl; + #define MBEDTLS_HAVE_UDBL + #endif /* !MBEDTLS_NO_UDBL_DIVISION */ + #elif defined(MBEDTLS_HAVE_INT64) +/* Force 64-bit integers with unknown compiler */ +typedef int64_t mbedtls_mpi_sint; +typedef uint64_t mbedtls_mpi_uint; +#define MBEDTLS_MPI_UINT_MAX UINT64_MAX + #endif +#endif /* !MBEDTLS_HAVE_INT32 */ + +#if !defined(MBEDTLS_HAVE_INT64) +/* Default to 32-bit compilation */ + #if !defined(MBEDTLS_HAVE_INT32) + #define MBEDTLS_HAVE_INT32 + #endif /* !MBEDTLS_HAVE_INT32 */ +typedef int32_t mbedtls_mpi_sint; +typedef uint32_t mbedtls_mpi_uint; +#define MBEDTLS_MPI_UINT_MAX UINT32_MAX + #if !defined(MBEDTLS_NO_UDBL_DIVISION) +typedef uint64_t mbedtls_t_udbl; + #define MBEDTLS_HAVE_UDBL + #endif /* !MBEDTLS_NO_UDBL_DIVISION */ +#endif /* !MBEDTLS_HAVE_INT64 */ + +/* + * Sanity check that exactly one of MBEDTLS_HAVE_INT32 or MBEDTLS_HAVE_INT64 is defined, + * so that code elsewhere doesn't have to check. + */ +#if (!(defined(MBEDTLS_HAVE_INT32) || defined(MBEDTLS_HAVE_INT64))) || \ + (defined(MBEDTLS_HAVE_INT32) && defined(MBEDTLS_HAVE_INT64)) +#error "Only 32-bit or 64-bit limbs are supported in bignum" +#endif + +/** \typedef mbedtls_mpi_uint + * \brief The type of machine digits in a bignum, called _limbs_. + * + * This is always an unsigned integer type with no padding bits. The size + * is platform-dependent. + */ + +/** \typedef mbedtls_mpi_sint + * \brief The signed type corresponding to #mbedtls_mpi_uint. + * + * This is always an signed integer type with no padding bits. The size + * is platform-dependent. + */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief MPI structure + */ +typedef struct mbedtls_mpi { + /** Pointer to limbs. + * + * This may be \c NULL if \c n is 0. + */ + mbedtls_mpi_uint *MBEDTLS_PRIVATE(p); + + /** Sign: -1 if the mpi is negative, 1 otherwise. + * + * The number 0 must be represented with `s = +1`. Although many library + * functions treat all-limbs-zero as equivalent to a valid representation + * of 0 regardless of the sign bit, there are exceptions, so bignum + * functions and external callers must always set \c s to +1 for the + * number zero. + * + * Note that this implies that calloc() or `... = {0}` does not create + * a valid MPI representation. You must call mbedtls_mpi_init(). + */ + signed short MBEDTLS_PRIVATE(s); + + /** Total number of limbs in \c p. */ + unsigned short MBEDTLS_PRIVATE(n); + /* Make sure that MBEDTLS_MPI_MAX_LIMBS fits in n. + * Use the same limit value on all platforms so that we don't have to + * think about different behavior on the rare platforms where + * unsigned short can store values larger than the minimum required by + * the C language, which is 65535. + */ +#if MBEDTLS_MPI_MAX_LIMBS > 65535 +#error "MBEDTLS_MPI_MAX_LIMBS > 65535 is not supported" +#endif +} +mbedtls_mpi; + +/** + * \brief Initialize an MPI context. + * + * This makes the MPI ready to be set or freed, + * but does not define a value for the MPI. + * + * \param X The MPI context to initialize. This must not be \c NULL. + */ +void mbedtls_mpi_init(mbedtls_mpi *X); + +/** + * \brief This function frees the components of an MPI context. + * + * \param X The MPI context to be cleared. This may be \c NULL, + * in which case this function is a no-op. If it is + * not \c NULL, it must point to an initialized MPI. + */ +void mbedtls_mpi_free(mbedtls_mpi *X); + +/** + * \brief Enlarge an MPI to the specified number of limbs. + * + * \note This function does nothing if the MPI is + * already large enough. + * + * \param X The MPI to grow. It must be initialized. + * \param nblimbs The target number of limbs. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_mpi_grow(mbedtls_mpi *X, size_t nblimbs); + +/** + * \brief This function resizes an MPI downwards, keeping at least the + * specified number of limbs. + * + * If \c X is smaller than \c nblimbs, it is resized up + * instead. + * + * \param X The MPI to shrink. This must point to an initialized MPI. + * \param nblimbs The minimum number of limbs to keep. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed + * (this can only happen when resizing up). + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_mpi_shrink(mbedtls_mpi *X, size_t nblimbs); + +/** + * \brief Make a copy of an MPI. + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param Y The source MPI. This must point to an initialized MPI. + * + * \note The limb-buffer in the destination MPI is enlarged + * if necessary to hold the value in the source MPI. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_mpi_copy(mbedtls_mpi *X, const mbedtls_mpi *Y); + +/** + * \brief Swap the contents of two MPIs. + * + * \param X The first MPI. It must be initialized. + * \param Y The second MPI. It must be initialized. + */ +void mbedtls_mpi_swap(mbedtls_mpi *X, mbedtls_mpi *Y); + +/** + * \brief Perform a safe conditional copy of MPI which doesn't + * reveal whether the condition was true or not. + * + * \param X The MPI to conditionally assign to. This must point + * to an initialized MPI. + * \param Y The MPI to be assigned from. This must point to an + * initialized MPI. + * \param assign The condition deciding whether to perform the + * assignment or not. Must be either 0 or 1: + * * \c 1: Perform the assignment `X = Y`. + * * \c 0: Keep the original value of \p X. + * + * \note This function is equivalent to + * `if( assign ) mbedtls_mpi_copy( X, Y );` + * except that it avoids leaking any information about whether + * the assignment was done or not (the above code may leak + * information through branch prediction and/or memory access + * patterns analysis). + * + * \warning If \p assign is neither 0 nor 1, the result of this function + * is indeterminate, and the resulting value in \p X might be + * neither its original value nor the value in \p Y. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_mpi_safe_cond_assign(mbedtls_mpi *X, const mbedtls_mpi *Y, unsigned char assign); + +/** + * \brief Perform a safe conditional swap which doesn't + * reveal whether the condition was true or not. + * + * \param X The first MPI. This must be initialized. + * \param Y The second MPI. This must be initialized. + * \param swap The condition deciding whether to perform + * the swap or not. Must be either 0 or 1: + * * \c 1: Swap the values of \p X and \p Y. + * * \c 0: Keep the original values of \p X and \p Y. + * + * \note This function is equivalent to + * if( swap ) mbedtls_mpi_swap( X, Y ); + * except that it avoids leaking any information about whether + * the swap was done or not (the above code may leak + * information through branch prediction and/or memory access + * patterns analysis). + * + * \warning If \p swap is neither 0 nor 1, the result of this function + * is indeterminate, and both \p X and \p Y might end up with + * values different to either of the original ones. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed. + * \return Another negative error code on other kinds of failure. + * + */ +int mbedtls_mpi_safe_cond_swap(mbedtls_mpi *X, mbedtls_mpi *Y, unsigned char swap); + +/** + * \brief Store integer value in MPI. + * + * \param X The MPI to set. This must be initialized. + * \param z The value to use. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_mpi_lset(mbedtls_mpi *X, mbedtls_mpi_sint z); + +/** + * \brief Get a specific bit from an MPI. + * + * \param X The MPI to query. This must be initialized. + * \param pos Zero-based index of the bit to query. + * + * \return \c 0 or \c 1 on success, depending on whether bit \c pos + * of \c X is unset or set. + * \return A negative error code on failure. + */ +int mbedtls_mpi_get_bit(const mbedtls_mpi *X, size_t pos); + +/** + * \brief Modify a specific bit in an MPI. + * + * \note This function will grow the target MPI if necessary to set a + * bit to \c 1 in a not yet existing limb. It will not grow if + * the bit should be set to \c 0. + * + * \param X The MPI to modify. This must be initialized. + * \param pos Zero-based index of the bit to modify. + * \param val The desired value of bit \c pos: \c 0 or \c 1. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_mpi_set_bit(mbedtls_mpi *X, size_t pos, unsigned char val); + +/** + * \brief Return the number of bits of value \c 0 before the + * least significant bit of value \c 1. + * + * \note This is the same as the zero-based index of + * the least significant bit of value \c 1. + * + * \param X The MPI to query. + * + * \return The number of bits of value \c 0 before the least significant + * bit of value \c 1 in \p X. + */ +size_t mbedtls_mpi_lsb(const mbedtls_mpi *X); + +/** + * \brief Return the number of bits up to and including the most + * significant bit of value \c 1. + * + * * \note This is same as the one-based index of the most + * significant bit of value \c 1. + * + * \param X The MPI to query. This must point to an initialized MPI. + * + * \return The number of bits up to and including the most + * significant bit of value \c 1. + */ +size_t mbedtls_mpi_bitlen(const mbedtls_mpi *X); + +/** + * \brief Return the total size of an MPI value in bytes. + * + * \param X The MPI to use. This must point to an initialized MPI. + * + * \note The value returned by this function may be less than + * the number of bytes used to store \p X internally. + * This happens if and only if there are trailing bytes + * of value zero. + * + * \return The least number of bytes capable of storing + * the absolute value of \p X. + */ +size_t mbedtls_mpi_size(const mbedtls_mpi *X); + +/** + * \brief Import an MPI from an ASCII string. + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param radix The numeric base of the input string. + * \param s Null-terminated string buffer. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_mpi_read_string(mbedtls_mpi *X, int radix, const char *s); + +/** + * \brief Export an MPI to an ASCII string. + * + * \param X The source MPI. This must point to an initialized MPI. + * \param radix The numeric base of the output string. + * \param buf The buffer to write the string to. This must be writable + * buffer of length \p buflen Bytes. + * \param buflen The available size in Bytes of \p buf. + * \param olen The address at which to store the length of the string + * written, including the final \c NULL byte. This must + * not be \c NULL. + * + * \note You can call this function with `buflen == 0` to obtain the + * minimum required buffer size in `*olen`. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL if the target buffer \p buf + * is too small to hold the value of \p X in the desired base. + * In this case, `*olen` is nonetheless updated to contain the + * size of \p buf required for a successful call. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_write_string(const mbedtls_mpi *X, int radix, + char *buf, size_t buflen, size_t *olen); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief Read an MPI from a line in an opened file. + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param radix The numeric base of the string representation used + * in the source line. + * \param fin The input file handle to use. This must not be \c NULL. + * + * \note On success, this function advances the file stream + * to the end of the current line or to EOF. + * + * The function returns \c 0 on an empty line. + * + * Leading whitespaces are ignored, as is a + * '0x' prefix for radix \c 16. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL if the file read buffer + * is too small. + * \return Another negative error code on failure. + */ +int mbedtls_mpi_read_file(mbedtls_mpi *X, int radix, FILE *fin); + +/** + * \brief Export an MPI into an opened file. + * + * \param p A string prefix to emit prior to the MPI data. + * For example, this might be a label, or "0x" when + * printing in base \c 16. This may be \c NULL if no prefix + * is needed. + * \param X The source MPI. This must point to an initialized MPI. + * \param radix The numeric base to be used in the emitted string. + * \param fout The output file handle. This may be \c NULL, in which case + * the output is written to \c stdout. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_mpi_write_file(const char *p, const mbedtls_mpi *X, + int radix, FILE *fout); +#endif /* MBEDTLS_FS_IO */ + +/** + * \brief Import an MPI from unsigned big endian binary data. + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param buf The input buffer. This must be a readable buffer of length + * \p buflen Bytes. + * \param buflen The length of the input buffer \p buf in Bytes. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_read_binary(mbedtls_mpi *X, const unsigned char *buf, + size_t buflen); + +/** + * \brief Import X from unsigned binary data, little endian + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param buf The input buffer. This must be a readable buffer of length + * \p buflen Bytes. + * \param buflen The length of the input buffer \p buf in Bytes. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_read_binary_le(mbedtls_mpi *X, + const unsigned char *buf, size_t buflen); + +/** + * \brief Export X into unsigned binary data, big endian. + * Always fills the whole buffer, which will start with zeros + * if the number is smaller. + * + * \param X The source MPI. This must point to an initialized MPI. + * \param buf The output buffer. This must be a writable buffer of length + * \p buflen Bytes. + * \param buflen The size of the output buffer \p buf in Bytes. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL if \p buf isn't + * large enough to hold the value of \p X. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_write_binary(const mbedtls_mpi *X, unsigned char *buf, + size_t buflen); + +/** + * \brief Export X into unsigned binary data, little endian. + * Always fills the whole buffer, which will end with zeros + * if the number is smaller. + * + * \param X The source MPI. This must point to an initialized MPI. + * \param buf The output buffer. This must be a writable buffer of length + * \p buflen Bytes. + * \param buflen The size of the output buffer \p buf in Bytes. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL if \p buf isn't + * large enough to hold the value of \p X. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_write_binary_le(const mbedtls_mpi *X, + unsigned char *buf, size_t buflen); + +/** + * \brief Perform a left-shift on an MPI: X <<= count + * + * \param X The MPI to shift. This must point to an initialized MPI. + * The MPI pointed by \p X may be resized to fit + * the resulting number. + * \param count The number of bits to shift by. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_shift_l(mbedtls_mpi *X, size_t count); + +/** + * \brief Perform a right-shift on an MPI: X >>= count + * + * \param X The MPI to shift. This must point to an initialized MPI. + * \param count The number of bits to shift by. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_shift_r(mbedtls_mpi *X, size_t count); + +/** + * \brief Compare the absolute values of two MPIs. + * + * \param X The left-hand MPI. This must point to an initialized MPI. + * \param Y The right-hand MPI. This must point to an initialized MPI. + * + * \return \c 1 if `|X|` is greater than `|Y|`. + * \return \c -1 if `|X|` is lesser than `|Y|`. + * \return \c 0 if `|X|` is equal to `|Y|`. + */ +int mbedtls_mpi_cmp_abs(const mbedtls_mpi *X, const mbedtls_mpi *Y); + +/** + * \brief Compare two MPIs. + * + * \param X The left-hand MPI. This must point to an initialized MPI. + * \param Y The right-hand MPI. This must point to an initialized MPI. + * + * \return \c 1 if \p X is greater than \p Y. + * \return \c -1 if \p X is lesser than \p Y. + * \return \c 0 if \p X is equal to \p Y. + */ +int mbedtls_mpi_cmp_mpi(const mbedtls_mpi *X, const mbedtls_mpi *Y); + +/** + * \brief Check if an MPI is less than the other in constant time. + * + * \param X The left-hand MPI. This must point to an initialized MPI + * with the same allocated length as Y. + * \param Y The right-hand MPI. This must point to an initialized MPI + * with the same allocated length as X. + * \param ret The result of the comparison: + * \c 1 if \p X is less than \p Y. + * \c 0 if \p X is greater than or equal to \p Y. + * + * \return 0 on success. + * \return MBEDTLS_ERR_MPI_BAD_INPUT_DATA if the allocated length of + * the two input MPIs is not the same. + */ +int mbedtls_mpi_lt_mpi_ct(const mbedtls_mpi *X, const mbedtls_mpi *Y, + unsigned *ret); + +/** + * \brief Compare an MPI with an integer. + * + * \param X The left-hand MPI. This must point to an initialized MPI. + * \param z The integer value to compare \p X to. + * + * \return \c 1 if \p X is greater than \p z. + * \return \c -1 if \p X is lesser than \p z. + * \return \c 0 if \p X is equal to \p z. + */ +int mbedtls_mpi_cmp_int(const mbedtls_mpi *X, mbedtls_mpi_sint z); + +/** + * \brief Perform an unsigned addition of MPIs: X = |A| + |B| + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param A The first summand. This must point to an initialized MPI. + * \param B The second summand. This must point to an initialized MPI. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_add_abs(mbedtls_mpi *X, const mbedtls_mpi *A, + const mbedtls_mpi *B); + +/** + * \brief Perform an unsigned subtraction of MPIs: X = |A| - |B| + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param A The minuend. This must point to an initialized MPI. + * \param B The subtrahend. This must point to an initialized MPI. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_NEGATIVE_VALUE if \p B is greater than \p A. + * \return Another negative error code on different kinds of failure. + * + */ +int mbedtls_mpi_sub_abs(mbedtls_mpi *X, const mbedtls_mpi *A, + const mbedtls_mpi *B); + +/** + * \brief Perform a signed addition of MPIs: X = A + B + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param A The first summand. This must point to an initialized MPI. + * \param B The second summand. This must point to an initialized MPI. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_add_mpi(mbedtls_mpi *X, const mbedtls_mpi *A, + const mbedtls_mpi *B); + +/** + * \brief Perform a signed subtraction of MPIs: X = A - B + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param A The minuend. This must point to an initialized MPI. + * \param B The subtrahend. This must point to an initialized MPI. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_sub_mpi(mbedtls_mpi *X, const mbedtls_mpi *A, + const mbedtls_mpi *B); + +/** + * \brief Perform a signed addition of an MPI and an integer: X = A + b + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param A The first summand. This must point to an initialized MPI. + * \param b The second summand. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_add_int(mbedtls_mpi *X, const mbedtls_mpi *A, + mbedtls_mpi_sint b); + +/** + * \brief Perform a signed subtraction of an MPI and an integer: + * X = A - b + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param A The minuend. This must point to an initialized MPI. + * \param b The subtrahend. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_sub_int(mbedtls_mpi *X, const mbedtls_mpi *A, + mbedtls_mpi_sint b); + +/** + * \brief Perform a multiplication of two MPIs: X = A * B + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param A The first factor. This must point to an initialized MPI. + * \param B The second factor. This must point to an initialized MPI. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return Another negative error code on different kinds of failure. + * + */ +int mbedtls_mpi_mul_mpi(mbedtls_mpi *X, const mbedtls_mpi *A, + const mbedtls_mpi *B); + +/** + * \brief Perform a multiplication of an MPI with an unsigned integer: + * X = A * b + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param A The first factor. This must point to an initialized MPI. + * \param b The second factor. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return Another negative error code on different kinds of failure. + * + */ +int mbedtls_mpi_mul_int(mbedtls_mpi *X, const mbedtls_mpi *A, + mbedtls_mpi_uint b); + +/** + * \brief Perform a division with remainder of two MPIs: + * A = Q * B + R + * + * \param Q The destination MPI for the quotient. + * This may be \c NULL if the value of the + * quotient is not needed. This must not alias A or B. + * \param R The destination MPI for the remainder value. + * This may be \c NULL if the value of the + * remainder is not needed. This must not alias A or B. + * \param A The dividend. This must point to an initialized MPI. + * \param B The divisor. This must point to an initialized MPI. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed. + * \return #MBEDTLS_ERR_MPI_DIVISION_BY_ZERO if \p B equals zero. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_div_mpi(mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A, + const mbedtls_mpi *B); + +/** + * \brief Perform a division with remainder of an MPI by an integer: + * A = Q * b + R + * + * \param Q The destination MPI for the quotient. + * This may be \c NULL if the value of the + * quotient is not needed. This must not alias A. + * \param R The destination MPI for the remainder value. + * This may be \c NULL if the value of the + * remainder is not needed. This must not alias A. + * \param A The dividend. This must point to an initialized MPi. + * \param b The divisor. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed. + * \return #MBEDTLS_ERR_MPI_DIVISION_BY_ZERO if \p b equals zero. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_div_int(mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A, + mbedtls_mpi_sint b); + +/** + * \brief Perform a modular reduction. R = A mod B + * + * \param R The destination MPI for the residue value. + * This must point to an initialized MPI. + * \param A The MPI to compute the residue of. + * This must point to an initialized MPI. + * \param B The base of the modular reduction. + * This must point to an initialized MPI. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return #MBEDTLS_ERR_MPI_DIVISION_BY_ZERO if \p B equals zero. + * \return #MBEDTLS_ERR_MPI_NEGATIVE_VALUE if \p B is negative. + * \return Another negative error code on different kinds of failure. + * + */ +int mbedtls_mpi_mod_mpi(mbedtls_mpi *R, const mbedtls_mpi *A, + const mbedtls_mpi *B); + +/** + * \brief Perform a modular reduction with respect to an integer. + * r = A mod b + * + * \param r The address at which to store the residue. + * This must not be \c NULL. + * \param A The MPI to compute the residue of. + * This must point to an initialized MPi. + * \param b The integer base of the modular reduction. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return #MBEDTLS_ERR_MPI_DIVISION_BY_ZERO if \p b equals zero. + * \return #MBEDTLS_ERR_MPI_NEGATIVE_VALUE if \p b is negative. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_mod_int(mbedtls_mpi_uint *r, const mbedtls_mpi *A, + mbedtls_mpi_sint b); + +/** + * \brief Perform a sliding-window exponentiation: X = A^E mod N + * + * \param X The destination MPI. This must point to an initialized MPI. + * This must not alias E or N. + * \param A The base of the exponentiation. + * This must point to an initialized MPI. + * \param E The exponent MPI. This must point to an initialized MPI. + * \param N The base for the modular reduction. This must point to an + * initialized MPI. + * \param prec_RR A helper MPI depending solely on \p N which can be used to + * speed-up multiple modular exponentiations for the same value + * of \p N. This may be \c NULL. If it is not \c NULL, it must + * point to an initialized MPI. If it hasn't been used after + * the call to mbedtls_mpi_init(), this function will compute + * the helper value and store it in \p prec_RR for reuse on + * subsequent calls to this function. Otherwise, the function + * will assume that \p prec_RR holds the helper value set by a + * previous call to mbedtls_mpi_exp_mod(), and reuse it. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return #MBEDTLS_ERR_MPI_BAD_INPUT_DATA if \c N is negative or + * even, or if \c E is negative. + * \return Another negative error code on different kinds of failures. + * + */ +int mbedtls_mpi_exp_mod(mbedtls_mpi *X, const mbedtls_mpi *A, + const mbedtls_mpi *E, const mbedtls_mpi *N, + mbedtls_mpi *prec_RR); + +/** + * \brief Fill an MPI with a number of random bytes. + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param size The number of random bytes to generate. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG parameter to be passed to \p f_rng. This may be + * \c NULL if \p f_rng doesn't need a context argument. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return Another negative error code on failure. + * + * \note The bytes obtained from the RNG are interpreted + * as a big-endian representation of an MPI; this can + * be relevant in applications like deterministic ECDSA. + */ +int mbedtls_mpi_fill_random(mbedtls_mpi *X, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** Generate a random number uniformly in a range. + * + * This function generates a random number between \p min inclusive and + * \p N exclusive. + * + * The procedure complies with RFC 6979 §3.3 (deterministic ECDSA) + * when the RNG is a suitably parametrized instance of HMAC_DRBG + * and \p min is \c 1. + * + * \note There are `N - min` possible outputs. The lower bound + * \p min can be reached, but the upper bound \p N cannot. + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param min The minimum value to return. + * It must be nonnegative. + * \param N The upper bound of the range, exclusive. + * In other words, this is one plus the maximum value to return. + * \p N must be strictly larger than \p min. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG parameter to be passed to \p f_rng. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return #MBEDTLS_ERR_MPI_BAD_INPUT_DATA if \p min or \p N is invalid + * or if they are incompatible. + * \return #MBEDTLS_ERR_MPI_NOT_ACCEPTABLE if the implementation was + * unable to find a suitable value within a limited number + * of attempts. This has a negligible probability if \p N + * is significantly larger than \p min, which is the case + * for all usual cryptographic applications. + * \return Another negative error code on failure. + */ +int mbedtls_mpi_random(mbedtls_mpi *X, + mbedtls_mpi_sint min, + const mbedtls_mpi *N, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief Compute the greatest common divisor: G = gcd(A, B) + * + * \param G The destination MPI. This must point to an initialized MPI. + * \param A The first operand. This must point to an initialized MPI. + * \param B The second operand. This must point to an initialized MPI. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_mpi_gcd(mbedtls_mpi *G, const mbedtls_mpi *A, + const mbedtls_mpi *B); + +/** + * \brief Compute the modular inverse: X = A^-1 mod N + * + * \param X The destination MPI. This must point to an initialized MPI. + * \param A The MPI to calculate the modular inverse of. This must point + * to an initialized MPI. + * \param N The base of the modular inversion. This must point to an + * initialized MPI. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return #MBEDTLS_ERR_MPI_BAD_INPUT_DATA if \p N is less than + * or equal to one. + * \return #MBEDTLS_ERR_MPI_NOT_ACCEPTABLE if \p A has no modular + * inverse with respect to \p N. + */ +int mbedtls_mpi_inv_mod(mbedtls_mpi *X, const mbedtls_mpi *A, + const mbedtls_mpi *N); + +/** + * \brief Miller-Rabin primality test. + * + * \warning If \p X is potentially generated by an adversary, for example + * when validating cryptographic parameters that you didn't + * generate yourself and that are supposed to be prime, then + * \p rounds should be at least the half of the security + * strength of the cryptographic algorithm. On the other hand, + * if \p X is chosen uniformly or non-adversarially (as is the + * case when mbedtls_mpi_gen_prime calls this function), then + * \p rounds can be much lower. + * + * \param X The MPI to check for primality. + * This must point to an initialized MPI. + * \param rounds The number of bases to perform the Miller-Rabin primality + * test for. The probability of returning 0 on a composite is + * at most 2<sup>-2*\p rounds </sup>. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG parameter to be passed to \p f_rng. + * This may be \c NULL if \p f_rng doesn't use + * a context parameter. + * + * \return \c 0 if successful, i.e. \p X is probably prime. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return #MBEDTLS_ERR_MPI_NOT_ACCEPTABLE if \p X is not prime. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_mpi_is_prime_ext(const mbedtls_mpi *X, int rounds, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); +/** + * \brief Flags for mbedtls_mpi_gen_prime() + * + * Each of these flags is a constraint on the result X returned by + * mbedtls_mpi_gen_prime(). + */ +typedef enum { + MBEDTLS_MPI_GEN_PRIME_FLAG_DH = 0x0001, /**< (X-1)/2 is prime too */ + MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR = 0x0002, /**< lower error rate from 2<sup>-80</sup> to 2<sup>-128</sup> */ +} mbedtls_mpi_gen_prime_flag_t; + +/** + * \brief Generate a prime number. + * + * \param X The destination MPI to store the generated prime in. + * This must point to an initialized MPi. + * \param nbits The required size of the destination MPI in bits. + * This must be between \c 3 and #MBEDTLS_MPI_MAX_BITS. + * \param flags A mask of flags of type #mbedtls_mpi_gen_prime_flag_t. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG parameter to be passed to \p f_rng. + * This may be \c NULL if \p f_rng doesn't use + * a context parameter. + * + * \return \c 0 if successful, in which case \p X holds a + * probably prime number. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if a memory allocation failed. + * \return #MBEDTLS_ERR_MPI_BAD_INPUT_DATA if `nbits` is not between + * \c 3 and #MBEDTLS_MPI_MAX_BITS. + */ +int mbedtls_mpi_gen_prime(mbedtls_mpi *X, size_t nbits, int flags, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_mpi_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* bignum.h */ diff --git a/include/mbedtls/build_info.h b/include/mbedtls/build_info.h new file mode 100644 index 0000000..87e3c2e --- /dev/null +++ b/include/mbedtls/build_info.h @@ -0,0 +1,146 @@ +/** + * \file mbedtls/build_info.h + * + * \brief Build-time configuration info + * + * Include this file if you need to depend on the + * configuration options defined in mbedtls_config.h or MBEDTLS_CONFIG_FILE + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_BUILD_INFO_H +#define MBEDTLS_BUILD_INFO_H + +/* + * This set of compile-time defines can be used to determine the version number + * of the Mbed TLS library used. Run-time variables for the same can be found in + * version.h + */ + +/** + * The version number x.y.z is split into three parts. + * Major, Minor, Patchlevel + */ +#define MBEDTLS_VERSION_MAJOR 3 +#define MBEDTLS_VERSION_MINOR 5 +#define MBEDTLS_VERSION_PATCH 2 + +/** + * The single version number has the following structure: + * MMNNPP00 + * Major version | Minor version | Patch version + */ +#define MBEDTLS_VERSION_NUMBER 0x03050200 +#define MBEDTLS_VERSION_STRING "3.5.2" +#define MBEDTLS_VERSION_STRING_FULL "Mbed TLS 3.5.2" + +/* Macros for build-time platform detection */ + +#if !defined(MBEDTLS_ARCH_IS_ARM64) && \ + (defined(__aarch64__) || defined(_M_ARM64) || defined(_M_ARM64EC)) +#define MBEDTLS_ARCH_IS_ARM64 +#endif + +#if !defined(MBEDTLS_ARCH_IS_ARM32) && \ + (defined(__arm__) || defined(_M_ARM) || \ + defined(_M_ARMT) || defined(__thumb__) || defined(__thumb2__)) +#define MBEDTLS_ARCH_IS_ARM32 +#endif + +#if !defined(MBEDTLS_ARCH_IS_X64) && \ + (defined(__amd64__) || defined(__x86_64__) || \ + ((defined(_M_X64) || defined(_M_AMD64)) && !defined(_M_ARM64EC))) +#define MBEDTLS_ARCH_IS_X64 +#endif + +#if !defined(MBEDTLS_ARCH_IS_X86) && \ + (defined(__i386__) || defined(_X86_) || \ + (defined(_M_IX86) && !defined(_M_I86))) +#define MBEDTLS_ARCH_IS_X86 +#endif + +#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_DEPRECATE) +#define _CRT_SECURE_NO_DEPRECATE 1 +#endif + +/* Define `inline` on some non-C99-compliant compilers. */ +#if (defined(__ARMCC_VERSION) || defined(_MSC_VER)) && \ + !defined(inline) && !defined(__cplusplus) +#define inline __inline +#endif + +/* X.509, TLS and non-PSA crypto configuration */ +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/mbedtls_config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_CONFIG_VERSION) && ( \ + MBEDTLS_CONFIG_VERSION < 0x03000000 || \ + MBEDTLS_CONFIG_VERSION > MBEDTLS_VERSION_NUMBER) +#error "Invalid config version, defined value of MBEDTLS_CONFIG_VERSION is unsupported" +#endif + +/* Target and application specific configurations + * + * Allow user to override any previous default. + * + */ +#if defined(MBEDTLS_USER_CONFIG_FILE) +#include MBEDTLS_USER_CONFIG_FILE +#endif + +/* PSA crypto configuration */ +#if defined(MBEDTLS_PSA_CRYPTO_CONFIG) +#if defined(MBEDTLS_PSA_CRYPTO_CONFIG_FILE) +#include MBEDTLS_PSA_CRYPTO_CONFIG_FILE +#else +#include "psa/crypto_config.h" +#endif +#if defined(MBEDTLS_PSA_CRYPTO_USER_CONFIG_FILE) +#include MBEDTLS_PSA_CRYPTO_USER_CONFIG_FILE +#endif +#endif /* defined(MBEDTLS_PSA_CRYPTO_CONFIG) */ + +/* Auto-enable MBEDTLS_CTR_DRBG_USE_128_BIT_KEY if + * MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH and MBEDTLS_CTR_DRBG_C defined + * to ensure a 128-bit key size in CTR_DRBG. + */ +#if defined(MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH) && defined(MBEDTLS_CTR_DRBG_C) +#define MBEDTLS_CTR_DRBG_USE_128_BIT_KEY +#endif + +/* Auto-enable MBEDTLS_MD_C if needed by a module that didn't require it + * in a previous release, to ensure backwards compatibility. + */ +#if defined(MBEDTLS_PKCS5_C) +#define MBEDTLS_MD_C +#endif + +/* PSA crypto specific configuration options + * - If config_psa.h reads a configuration option in preprocessor directive, + * this symbol should be set before its inclusion. (e.g. MBEDTLS_MD_C) + * - If config_psa.h writes a configuration option in conditional directive, + * this symbol should be consulted after its inclusion. + * (e.g. MBEDTLS_MD_LIGHT) + */ +#if defined(MBEDTLS_PSA_CRYPTO_CONFIG) /* PSA_WANT_xxx influences MBEDTLS_xxx */ || \ + defined(MBEDTLS_PSA_CRYPTO_C) /* MBEDTLS_xxx influences PSA_WANT_xxx */ +#include "mbedtls/config_psa.h" +#endif + +#include "mbedtls/config_adjust_legacy_crypto.h" + +#include "mbedtls/config_adjust_x509.h" + +#include "mbedtls/config_adjust_ssl.h" + +/* Make sure all configuration symbols are set before including check_config.h, + * even the ones that are calculated programmatically. */ +#include "mbedtls/check_config.h" + +#endif /* MBEDTLS_BUILD_INFO_H */ diff --git a/include/mbedtls/camellia.h b/include/mbedtls/camellia.h new file mode 100644 index 0000000..6c674fe --- /dev/null +++ b/include/mbedtls/camellia.h @@ -0,0 +1,303 @@ +/** + * \file camellia.h + * + * \brief Camellia block cipher + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_CAMELLIA_H +#define MBEDTLS_CAMELLIA_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stddef.h> +#include <stdint.h> + +#include "mbedtls/platform_util.h" + +#define MBEDTLS_CAMELLIA_ENCRYPT 1 +#define MBEDTLS_CAMELLIA_DECRYPT 0 + +/** Bad input data. */ +#define MBEDTLS_ERR_CAMELLIA_BAD_INPUT_DATA -0x0024 + +/** Invalid data input length. */ +#define MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH -0x0026 + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_CAMELLIA_ALT) +// Regular implementation +// + +/** + * \brief CAMELLIA context structure + */ +typedef struct mbedtls_camellia_context { + int MBEDTLS_PRIVATE(nr); /*!< number of rounds */ + uint32_t MBEDTLS_PRIVATE(rk)[68]; /*!< CAMELLIA round keys */ +} +mbedtls_camellia_context; + +#else /* MBEDTLS_CAMELLIA_ALT */ +#include "camellia_alt.h" +#endif /* MBEDTLS_CAMELLIA_ALT */ + +/** + * \brief Initialize a CAMELLIA context. + * + * \param ctx The CAMELLIA context to be initialized. + * This must not be \c NULL. + */ +void mbedtls_camellia_init(mbedtls_camellia_context *ctx); + +/** + * \brief Clear a CAMELLIA context. + * + * \param ctx The CAMELLIA context to be cleared. This may be \c NULL, + * in which case this function returns immediately. If it is not + * \c NULL, it must be initialized. + */ +void mbedtls_camellia_free(mbedtls_camellia_context *ctx); + +/** + * \brief Perform a CAMELLIA key schedule operation for encryption. + * + * \param ctx The CAMELLIA context to use. This must be initialized. + * \param key The encryption key to use. This must be a readable buffer + * of size \p keybits Bits. + * \param keybits The length of \p key in Bits. This must be either \c 128, + * \c 192 or \c 256. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_camellia_setkey_enc(mbedtls_camellia_context *ctx, + const unsigned char *key, + unsigned int keybits); + +/** + * \brief Perform a CAMELLIA key schedule operation for decryption. + * + * \param ctx The CAMELLIA context to use. This must be initialized. + * \param key The decryption key. This must be a readable buffer + * of size \p keybits Bits. + * \param keybits The length of \p key in Bits. This must be either \c 128, + * \c 192 or \c 256. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_camellia_setkey_dec(mbedtls_camellia_context *ctx, + const unsigned char *key, + unsigned int keybits); + +/** + * \brief Perform a CAMELLIA-ECB block encryption/decryption operation. + * + * \param ctx The CAMELLIA context to use. This must be initialized + * and bound to a key. + * \param mode The mode of operation. This must be either + * #MBEDTLS_CAMELLIA_ENCRYPT or #MBEDTLS_CAMELLIA_DECRYPT. + * \param input The input block. This must be a readable buffer + * of size \c 16 Bytes. + * \param output The output block. This must be a writable buffer + * of size \c 16 Bytes. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_camellia_crypt_ecb(mbedtls_camellia_context *ctx, + int mode, + const unsigned char input[16], + unsigned char output[16]); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/** + * \brief Perform a CAMELLIA-CBC buffer encryption/decryption operation. + * + * \note Upon exit, the content of the IV is updated so that you can + * call the function same function again on the following + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If on the other hand you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * \param ctx The CAMELLIA context to use. This must be initialized + * and bound to a key. + * \param mode The mode of operation. This must be either + * #MBEDTLS_CAMELLIA_ENCRYPT or #MBEDTLS_CAMELLIA_DECRYPT. + * \param length The length in Bytes of the input data \p input. + * This must be a multiple of \c 16 Bytes. + * \param iv The initialization vector. This must be a read/write buffer + * of length \c 16 Bytes. It is updated to allow streaming + * use as explained above. + * \param input The buffer holding the input data. This must point to a + * readable buffer of length \p length Bytes. + * \param output The buffer holding the output data. This must point to a + * writable buffer of length \p length Bytes. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_camellia_crypt_cbc(mbedtls_camellia_context *ctx, + int mode, + size_t length, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output); +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +/** + * \brief Perform a CAMELLIA-CFB128 buffer encryption/decryption + * operation. + * + * \note Due to the nature of CFB mode, you should use the same + * key for both encryption and decryption. In particular, calls + * to this function should be preceded by a key-schedule via + * mbedtls_camellia_setkey_enc() regardless of whether \p mode + * is #MBEDTLS_CAMELLIA_ENCRYPT or #MBEDTLS_CAMELLIA_DECRYPT. + * + * \note Upon exit, the content of the IV is updated so that you can + * call the function same function again on the following + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If on the other hand you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * \param ctx The CAMELLIA context to use. This must be initialized + * and bound to a key. + * \param mode The mode of operation. This must be either + * #MBEDTLS_CAMELLIA_ENCRYPT or #MBEDTLS_CAMELLIA_DECRYPT. + * \param length The length of the input data \p input. Any value is allowed. + * \param iv_off The current offset in the IV. This must be smaller + * than \c 16 Bytes. It is updated after this call to allow + * the aforementioned streaming usage. + * \param iv The initialization vector. This must be a read/write buffer + * of length \c 16 Bytes. It is updated after this call to + * allow the aforementioned streaming usage. + * \param input The buffer holding the input data. This must be a readable + * buffer of size \p length Bytes. + * \param output The buffer to hold the output data. This must be a writable + * buffer of length \p length Bytes. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_camellia_crypt_cfb128(mbedtls_camellia_context *ctx, + int mode, + size_t length, + size_t *iv_off, + unsigned char iv[16], + const unsigned char *input, + unsigned char *output); +#endif /* MBEDTLS_CIPHER_MODE_CFB */ + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +/** + * \brief Perform a CAMELLIA-CTR buffer encryption/decryption operation. + * + * *note Due to the nature of CTR mode, you should use the same + * key for both encryption and decryption. In particular, calls + * to this function should be preceded by a key-schedule via + * mbedtls_camellia_setkey_enc() regardless of whether the mode + * is #MBEDTLS_CAMELLIA_ENCRYPT or #MBEDTLS_CAMELLIA_DECRYPT. + * + * \warning You must never reuse a nonce value with the same key. Doing so + * would void the encryption for the two messages encrypted with + * the same nonce and key. + * + * There are two common strategies for managing nonces with CTR: + * + * 1. You can handle everything as a single message processed over + * successive calls to this function. In that case, you want to + * set \p nonce_counter and \p nc_off to 0 for the first call, and + * then preserve the values of \p nonce_counter, \p nc_off and \p + * stream_block across calls to this function as they will be + * updated by this function. + * + * With this strategy, you must not encrypt more than 2**128 + * blocks of data with the same key. + * + * 2. You can encrypt separate messages by dividing the \p + * nonce_counter buffer in two areas: the first one used for a + * per-message nonce, handled by yourself, and the second one + * updated by this function internally. + * + * For example, you might reserve the first \c 12 Bytes for the + * per-message nonce, and the last \c 4 Bytes for internal use. + * In that case, before calling this function on a new message you + * need to set the first \c 12 Bytes of \p nonce_counter to your + * chosen nonce value, the last four to \c 0, and \p nc_off to \c 0 + * (which will cause \p stream_block to be ignored). That way, you + * can encrypt at most \c 2**96 messages of up to \c 2**32 blocks + * each with the same key. + * + * The per-message nonce (or information sufficient to reconstruct + * it) needs to be communicated with the ciphertext and must be + * unique. The recommended way to ensure uniqueness is to use a + * message counter. An alternative is to generate random nonces, + * but this limits the number of messages that can be securely + * encrypted: for example, with 96-bit random nonces, you should + * not encrypt more than 2**32 messages with the same key. + * + * Note that for both strategies, sizes are measured in blocks and + * that a CAMELLIA block is \c 16 Bytes. + * + * \warning Upon return, \p stream_block contains sensitive data. Its + * content must not be written to insecure storage and should be + * securely discarded as soon as it's no longer needed. + * + * \param ctx The CAMELLIA context to use. This must be initialized + * and bound to a key. + * \param length The length of the input data \p input in Bytes. + * Any value is allowed. + * \param nc_off The offset in the current \p stream_block (for resuming + * within current cipher stream). The offset pointer to + * should be \c 0 at the start of a stream. It is updated + * at the end of this call. + * \param nonce_counter The 128-bit nonce and counter. This must be a read/write + * buffer of length \c 16 Bytes. + * \param stream_block The saved stream-block for resuming. This must be a + * read/write buffer of length \c 16 Bytes. + * \param input The input data stream. This must be a readable buffer of + * size \p length Bytes. + * \param output The output data stream. This must be a writable buffer + * of size \p length Bytes. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_camellia_crypt_ctr(mbedtls_camellia_context *ctx, + size_t length, + size_t *nc_off, + unsigned char nonce_counter[16], + unsigned char stream_block[16], + const unsigned char *input, + unsigned char *output); +#endif /* MBEDTLS_CIPHER_MODE_CTR */ + +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_camellia_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* camellia.h */ diff --git a/include/mbedtls/ccm.h b/include/mbedtls/ccm.h new file mode 100644 index 0000000..a98111b --- /dev/null +++ b/include/mbedtls/ccm.h @@ -0,0 +1,518 @@ +/** + * \file ccm.h + * + * \brief This file provides an API for the CCM authenticated encryption + * mode for block ciphers. + * + * CCM combines Counter mode encryption with CBC-MAC authentication + * for 128-bit block ciphers. + * + * Input to CCM includes the following elements: + * <ul><li>Payload - data that is both authenticated and encrypted.</li> + * <li>Associated data (Adata) - data that is authenticated but not + * encrypted, For example, a header.</li> + * <li>Nonce - A unique value that is assigned to the payload and the + * associated data.</li></ul> + * + * Definition of CCM: + * http://csrc.nist.gov/publications/nistpubs/800-38C/SP800-38C_updated-July20_2007.pdf + * RFC 3610 "Counter with CBC-MAC (CCM)" + * + * Related: + * RFC 5116 "An Interface and Algorithms for Authenticated Encryption" + * + * Definition of CCM*: + * IEEE 802.15.4 - IEEE Standard for Local and metropolitan area networks + * Integer representation is fixed most-significant-octet-first order and + * the representation of octets is most-significant-bit-first order. This is + * consistent with RFC 3610. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CCM_H +#define MBEDTLS_CCM_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/cipher.h" + +#define MBEDTLS_CCM_DECRYPT 0 +#define MBEDTLS_CCM_ENCRYPT 1 +#define MBEDTLS_CCM_STAR_DECRYPT 2 +#define MBEDTLS_CCM_STAR_ENCRYPT 3 + +/** Bad input parameters to the function. */ +#define MBEDTLS_ERR_CCM_BAD_INPUT -0x000D +/** Authenticated decryption failed. */ +#define MBEDTLS_ERR_CCM_AUTH_FAILED -0x000F + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_CCM_ALT) +// Regular implementation +// + +/** + * \brief The CCM context-type definition. The CCM context is passed + * to the APIs called. + */ +typedef struct mbedtls_ccm_context { + unsigned char MBEDTLS_PRIVATE(y)[16]; /*!< The Y working buffer */ + unsigned char MBEDTLS_PRIVATE(ctr)[16]; /*!< The counter buffer */ + size_t MBEDTLS_PRIVATE(plaintext_len); /*!< Total plaintext length */ + size_t MBEDTLS_PRIVATE(add_len); /*!< Total authentication data length */ + size_t MBEDTLS_PRIVATE(tag_len); /*!< Total tag length */ + size_t MBEDTLS_PRIVATE(processed); /*!< Track how many bytes of input data + were processed (chunked input). + Used independently for both auth data + and plaintext/ciphertext. + This variable is set to zero after + auth data input is finished. */ + unsigned int MBEDTLS_PRIVATE(q); /*!< The Q working value */ + unsigned int MBEDTLS_PRIVATE(mode); /*!< The operation to perform: + #MBEDTLS_CCM_ENCRYPT or + #MBEDTLS_CCM_DECRYPT or + #MBEDTLS_CCM_STAR_ENCRYPT or + #MBEDTLS_CCM_STAR_DECRYPT. */ + mbedtls_cipher_context_t MBEDTLS_PRIVATE(cipher_ctx); /*!< The cipher context used. */ + int MBEDTLS_PRIVATE(state); /*!< Working value holding context's + state. Used for chunked data input */ +} +mbedtls_ccm_context; + +#else /* MBEDTLS_CCM_ALT */ +#include "ccm_alt.h" +#endif /* MBEDTLS_CCM_ALT */ + +/** + * \brief This function initializes the specified CCM context, + * to make references valid, and prepare the context + * for mbedtls_ccm_setkey() or mbedtls_ccm_free(). + * + * \param ctx The CCM context to initialize. This must not be \c NULL. + */ +void mbedtls_ccm_init(mbedtls_ccm_context *ctx); + +/** + * \brief This function initializes the CCM context set in the + * \p ctx parameter and sets the encryption key. + * + * \param ctx The CCM context to initialize. This must be an initialized + * context. + * \param cipher The 128-bit block cipher to use. + * \param key The encryption key. This must not be \c NULL. + * \param keybits The key size in bits. This must be acceptable by the cipher. + * + * \return \c 0 on success. + * \return A CCM or cipher-specific error code on failure. + */ +int mbedtls_ccm_setkey(mbedtls_ccm_context *ctx, + mbedtls_cipher_id_t cipher, + const unsigned char *key, + unsigned int keybits); + +/** + * \brief This function releases and clears the specified CCM context + * and underlying cipher sub-context. + * + * \param ctx The CCM context to clear. If this is \c NULL, the function + * has no effect. Otherwise, this must be initialized. + */ +void mbedtls_ccm_free(mbedtls_ccm_context *ctx); + +/** + * \brief This function encrypts a buffer using CCM. + * + * \note The tag is written to a separate buffer. To concatenate + * the \p tag with the \p output, as done in <em>RFC-3610: + * Counter with CBC-MAC (CCM)</em>, use + * \p tag = \p output + \p length, and make sure that the + * output buffer is at least \p length + \p tag_len wide. + * + * \param ctx The CCM context to use for encryption. This must be + * initialized and bound to a key. + * \param length The length of the input data in Bytes. + * \param iv The initialization vector (nonce). This must be a readable + * buffer of at least \p iv_len Bytes. + * \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12, + * or 13. The length L of the message length field is + * 15 - \p iv_len. + * \param ad The additional data field. If \p ad_len is greater than + * zero, \p ad must be a readable buffer of at least that + * length. + * \param ad_len The length of additional data in Bytes. + * This must be less than `2^16 - 2^8`. + * \param input The buffer holding the input data. If \p length is greater + * than zero, \p input must be a readable buffer of at least + * that length. + * \param output The buffer holding the output data. If \p length is greater + * than zero, \p output must be a writable buffer of at least + * that length. + * \param tag The buffer holding the authentication field. This must be a + * writable buffer of at least \p tag_len Bytes. + * \param tag_len The length of the authentication field to generate in Bytes: + * 4, 6, 8, 10, 12, 14 or 16. + * + * \return \c 0 on success. + * \return A CCM or cipher-specific error code on failure. + */ +int mbedtls_ccm_encrypt_and_tag(mbedtls_ccm_context *ctx, size_t length, + const unsigned char *iv, size_t iv_len, + const unsigned char *ad, size_t ad_len, + const unsigned char *input, unsigned char *output, + unsigned char *tag, size_t tag_len); + +/** + * \brief This function encrypts a buffer using CCM*. + * + * \note The tag is written to a separate buffer. To concatenate + * the \p tag with the \p output, as done in <em>RFC-3610: + * Counter with CBC-MAC (CCM)</em>, use + * \p tag = \p output + \p length, and make sure that the + * output buffer is at least \p length + \p tag_len wide. + * + * \note When using this function in a variable tag length context, + * the tag length has to be encoded into the \p iv passed to + * this function. + * + * \param ctx The CCM context to use for encryption. This must be + * initialized and bound to a key. + * \param length The length of the input data in Bytes. + * For tag length = 0, input length is ignored. + * \param iv The initialization vector (nonce). This must be a readable + * buffer of at least \p iv_len Bytes. + * \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12, + * or 13. The length L of the message length field is + * 15 - \p iv_len. + * \param ad The additional data field. This must be a readable buffer of + * at least \p ad_len Bytes. + * \param ad_len The length of additional data in Bytes. + * This must be less than 2^16 - 2^8. + * \param input The buffer holding the input data. If \p length is greater + * than zero, \p input must be a readable buffer of at least + * that length. + * \param output The buffer holding the output data. If \p length is greater + * than zero, \p output must be a writable buffer of at least + * that length. + * \param tag The buffer holding the authentication field. This must be a + * writable buffer of at least \p tag_len Bytes. + * \param tag_len The length of the authentication field to generate in Bytes: + * 0, 4, 6, 8, 10, 12, 14 or 16. + * + * \warning Passing \c 0 as \p tag_len means that the message is no + * longer authenticated. + * + * \return \c 0 on success. + * \return A CCM or cipher-specific error code on failure. + */ +int mbedtls_ccm_star_encrypt_and_tag(mbedtls_ccm_context *ctx, size_t length, + const unsigned char *iv, size_t iv_len, + const unsigned char *ad, size_t ad_len, + const unsigned char *input, unsigned char *output, + unsigned char *tag, size_t tag_len); + +/** + * \brief This function performs a CCM authenticated decryption of a + * buffer. + * + * \param ctx The CCM context to use for decryption. This must be + * initialized and bound to a key. + * \param length The length of the input data in Bytes. + * \param iv The initialization vector (nonce). This must be a readable + * buffer of at least \p iv_len Bytes. + * \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12, + * or 13. The length L of the message length field is + * 15 - \p iv_len. + * \param ad The additional data field. This must be a readable buffer + * of at least that \p ad_len Bytes.. + * \param ad_len The length of additional data in Bytes. + * This must be less than 2^16 - 2^8. + * \param input The buffer holding the input data. If \p length is greater + * than zero, \p input must be a readable buffer of at least + * that length. + * \param output The buffer holding the output data. If \p length is greater + * than zero, \p output must be a writable buffer of at least + * that length. + * \param tag The buffer holding the authentication field. This must be a + * readable buffer of at least \p tag_len Bytes. + * \param tag_len The length of the authentication field to generate in Bytes: + * 4, 6, 8, 10, 12, 14 or 16. + * + * \return \c 0 on success. This indicates that the message is authentic. + * \return #MBEDTLS_ERR_CCM_AUTH_FAILED if the tag does not match. + * \return A cipher-specific error code on calculation failure. + */ +int mbedtls_ccm_auth_decrypt(mbedtls_ccm_context *ctx, size_t length, + const unsigned char *iv, size_t iv_len, + const unsigned char *ad, size_t ad_len, + const unsigned char *input, unsigned char *output, + const unsigned char *tag, size_t tag_len); + +/** + * \brief This function performs a CCM* authenticated decryption of a + * buffer. + * + * \note When using this function in a variable tag length context, + * the tag length has to be decoded from \p iv and passed to + * this function as \p tag_len. (\p tag needs to be adjusted + * accordingly.) + * + * \param ctx The CCM context to use for decryption. This must be + * initialized and bound to a key. + * \param length The length of the input data in Bytes. + * For tag length = 0, input length is ignored. + * \param iv The initialization vector (nonce). This must be a readable + * buffer of at least \p iv_len Bytes. + * \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12, + * or 13. The length L of the message length field is + * 15 - \p iv_len. + * \param ad The additional data field. This must be a readable buffer of + * at least that \p ad_len Bytes. + * \param ad_len The length of additional data in Bytes. + * This must be less than 2^16 - 2^8. + * \param input The buffer holding the input data. If \p length is greater + * than zero, \p input must be a readable buffer of at least + * that length. + * \param output The buffer holding the output data. If \p length is greater + * than zero, \p output must be a writable buffer of at least + * that length. + * \param tag The buffer holding the authentication field. This must be a + * readable buffer of at least \p tag_len Bytes. + * \param tag_len The length of the authentication field in Bytes. + * 0, 4, 6, 8, 10, 12, 14 or 16. + * + * \warning Passing \c 0 as \p tag_len means that the message is nos + * longer authenticated. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CCM_AUTH_FAILED if the tag does not match. + * \return A cipher-specific error code on calculation failure. + */ +int mbedtls_ccm_star_auth_decrypt(mbedtls_ccm_context *ctx, size_t length, + const unsigned char *iv, size_t iv_len, + const unsigned char *ad, size_t ad_len, + const unsigned char *input, unsigned char *output, + const unsigned char *tag, size_t tag_len); + +/** + * \brief This function starts a CCM encryption or decryption + * operation. + * + * This function and mbedtls_ccm_set_lengths() must be called + * before calling mbedtls_ccm_update_ad() or + * mbedtls_ccm_update(). This function can be called before + * or after mbedtls_ccm_set_lengths(). + * + * \note This function is not implemented in Mbed TLS yet. + * + * \param ctx The CCM context. This must be initialized. + * \param mode The operation to perform: #MBEDTLS_CCM_ENCRYPT or + * #MBEDTLS_CCM_DECRYPT or #MBEDTLS_CCM_STAR_ENCRYPT or + * #MBEDTLS_CCM_STAR_DECRYPT. + * \param iv The initialization vector. This must be a readable buffer + * of at least \p iv_len Bytes. + * \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12, + * or 13. The length L of the message length field is + * 15 - \p iv_len. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CCM_BAD_INPUT on failure: + * \p ctx is in an invalid state, + * \p mode is invalid, + * \p iv_len is invalid (lower than \c 7 or greater than + * \c 13). + */ +int mbedtls_ccm_starts(mbedtls_ccm_context *ctx, + int mode, + const unsigned char *iv, + size_t iv_len); + +/** + * \brief This function declares the lengths of the message + * and additional data for a CCM encryption or decryption + * operation. + * + * This function and mbedtls_ccm_starts() must be called + * before calling mbedtls_ccm_update_ad() or + * mbedtls_ccm_update(). This function can be called before + * or after mbedtls_ccm_starts(). + * + * \note This function is not implemented in Mbed TLS yet. + * + * \param ctx The CCM context. This must be initialized. + * \param total_ad_len The total length of additional data in bytes. + * This must be less than `2^16 - 2^8`. + * \param plaintext_len The length in bytes of the plaintext to encrypt or + * result of the decryption (thus not encompassing the + * additional data that are not encrypted). + * \param tag_len The length of the tag to generate in Bytes: + * 4, 6, 8, 10, 12, 14 or 16. + * For CCM*, zero is also valid. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CCM_BAD_INPUT on failure: + * \p ctx is in an invalid state, + * \p total_ad_len is greater than \c 0xFF00. + */ +int mbedtls_ccm_set_lengths(mbedtls_ccm_context *ctx, + size_t total_ad_len, + size_t plaintext_len, + size_t tag_len); + +/** + * \brief This function feeds an input buffer as associated data + * (authenticated but not encrypted data) in a CCM + * encryption or decryption operation. + * + * You may call this function zero, one or more times + * to pass successive parts of the additional data. The + * lengths \p ad_len of the data parts should eventually add + * up exactly to the total length of additional data + * \c total_ad_len passed to mbedtls_ccm_set_lengths(). You + * may not call this function after calling + * mbedtls_ccm_update(). + * + * \note This function is not implemented in Mbed TLS yet. + * + * \param ctx The CCM context. This must have been started with + * mbedtls_ccm_starts(), the lengths of the message and + * additional data must have been declared with + * mbedtls_ccm_set_lengths() and this must not have yet + * received any input with mbedtls_ccm_update(). + * \param ad The buffer holding the additional data, or \c NULL + * if \p ad_len is \c 0. + * \param ad_len The length of the additional data. If \c 0, + * \p ad may be \c NULL. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CCM_BAD_INPUT on failure: + * \p ctx is in an invalid state, + * total input length too long. + */ +int mbedtls_ccm_update_ad(mbedtls_ccm_context *ctx, + const unsigned char *ad, + size_t ad_len); + +/** + * \brief This function feeds an input buffer into an ongoing CCM + * encryption or decryption operation. + * + * You may call this function zero, one or more times + * to pass successive parts of the input: the plaintext to + * encrypt, or the ciphertext (not including the tag) to + * decrypt. After the last part of the input, call + * mbedtls_ccm_finish(). The lengths \p input_len of the + * data parts should eventually add up exactly to the + * plaintext length \c plaintext_len passed to + * mbedtls_ccm_set_lengths(). + * + * This function may produce output in one of the following + * ways: + * - Immediate output: the output length is always equal + * to the input length. + * - Buffered output: except for the last part of input data, + * the output consists of a whole number of 16-byte blocks. + * If the total input length so far (not including + * associated data) is 16 \* *B* + *A* with *A* < 16 then + * the total output length is 16 \* *B*. + * For the last part of input data, the output length is + * equal to the input length plus the number of bytes (*A*) + * buffered in the previous call to the function (if any). + * The function uses the plaintext length + * \c plaintext_len passed to mbedtls_ccm_set_lengths() + * to detect the last part of input data. + * + * In particular: + * - It is always correct to call this function with + * \p output_size >= \p input_len + 15. + * - If \p input_len is a multiple of 16 for all the calls + * to this function during an operation (not necessary for + * the last one) then it is correct to use \p output_size + * =\p input_len. + * + * \note This function is not implemented in Mbed TLS yet. + * + * \param ctx The CCM context. This must have been started with + * mbedtls_ccm_starts() and the lengths of the message and + * additional data must have been declared with + * mbedtls_ccm_set_lengths(). + * \param input The buffer holding the input data. If \p input_len + * is greater than zero, this must be a readable buffer + * of at least \p input_len bytes. + * \param input_len The length of the input data in bytes. + * \param output The buffer for the output data. If \p output_size + * is greater than zero, this must be a writable buffer of + * at least \p output_size bytes. + * \param output_size The size of the output buffer in bytes. + * See the function description regarding the output size. + * \param output_len On success, \p *output_len contains the actual + * length of the output written in \p output. + * On failure, the content of \p *output_len is + * unspecified. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CCM_BAD_INPUT on failure: + * \p ctx is in an invalid state, + * total input length too long, + * or \p output_size too small. + */ +int mbedtls_ccm_update(mbedtls_ccm_context *ctx, + const unsigned char *input, size_t input_len, + unsigned char *output, size_t output_size, + size_t *output_len); + +/** + * \brief This function finishes the CCM operation and generates + * the authentication tag. + * + * It wraps up the CCM stream, and generates the + * tag. The tag can have a maximum length of 16 Bytes. + * + * \note This function is not implemented in Mbed TLS yet. + * + * \param ctx The CCM context. This must have been started with + * mbedtls_ccm_starts() and the lengths of the message and + * additional data must have been declared with + * mbedtls_ccm_set_lengths(). + * \param tag The buffer for holding the tag. If \p tag_len is greater + * than zero, this must be a writable buffer of at least \p + * tag_len Bytes. + * \param tag_len The length of the tag. Must match the tag length passed to + * mbedtls_ccm_set_lengths() function. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CCM_BAD_INPUT on failure: + * \p ctx is in an invalid state, + * invalid value of \p tag_len, + * the total amount of additional data passed to + * mbedtls_ccm_update_ad() was lower than the total length of + * additional data \c total_ad_len passed to + * mbedtls_ccm_set_lengths(), + * the total amount of input data passed to + * mbedtls_ccm_update() was lower than the plaintext length + * \c plaintext_len passed to mbedtls_ccm_set_lengths(). + */ +int mbedtls_ccm_finish(mbedtls_ccm_context *ctx, + unsigned char *tag, size_t tag_len); + +#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C) +/** + * \brief The CCM checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_ccm_self_test(int verbose); +#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_CCM_H */ diff --git a/include/mbedtls/chacha20.h b/include/mbedtls/chacha20.h new file mode 100644 index 0000000..680fe36 --- /dev/null +++ b/include/mbedtls/chacha20.h @@ -0,0 +1,202 @@ +/** + * \file chacha20.h + * + * \brief This file contains ChaCha20 definitions and functions. + * + * ChaCha20 is a stream cipher that can encrypt and decrypt + * information. ChaCha was created by Daniel Bernstein as a variant of + * its Salsa cipher https://cr.yp.to/chacha/chacha-20080128.pdf + * ChaCha20 is the variant with 20 rounds, that was also standardized + * in RFC 7539. + * + * \author Daniel King <damaki.gh@gmail.com> + */ + +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CHACHA20_H +#define MBEDTLS_CHACHA20_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stdint.h> +#include <stddef.h> + +/** Invalid input parameter(s). */ +#define MBEDTLS_ERR_CHACHA20_BAD_INPUT_DATA -0x0051 + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_CHACHA20_ALT) + +typedef struct mbedtls_chacha20_context { + uint32_t MBEDTLS_PRIVATE(state)[16]; /*! The state (before round operations). */ + uint8_t MBEDTLS_PRIVATE(keystream8)[64]; /*! Leftover keystream bytes. */ + size_t MBEDTLS_PRIVATE(keystream_bytes_used); /*! Number of keystream bytes already used. */ +} +mbedtls_chacha20_context; + +#else /* MBEDTLS_CHACHA20_ALT */ +#include "chacha20_alt.h" +#endif /* MBEDTLS_CHACHA20_ALT */ + +/** + * \brief This function initializes the specified ChaCha20 context. + * + * It must be the first API called before using + * the context. + * + * It is usually followed by calls to + * \c mbedtls_chacha20_setkey() and + * \c mbedtls_chacha20_starts(), then one or more calls to + * to \c mbedtls_chacha20_update(), and finally to + * \c mbedtls_chacha20_free(). + * + * \param ctx The ChaCha20 context to initialize. + * This must not be \c NULL. + */ +void mbedtls_chacha20_init(mbedtls_chacha20_context *ctx); + +/** + * \brief This function releases and clears the specified + * ChaCha20 context. + * + * \param ctx The ChaCha20 context to clear. This may be \c NULL, + * in which case this function is a no-op. If it is not + * \c NULL, it must point to an initialized context. + * + */ +void mbedtls_chacha20_free(mbedtls_chacha20_context *ctx); + +/** + * \brief This function sets the encryption/decryption key. + * + * \note After using this function, you must also call + * \c mbedtls_chacha20_starts() to set a nonce before you + * start encrypting/decrypting data with + * \c mbedtls_chacha_update(). + * + * \param ctx The ChaCha20 context to which the key should be bound. + * It must be initialized. + * \param key The encryption/decryption key. This must be \c 32 Bytes + * in length. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CHACHA20_BAD_INPUT_DATA if ctx or key is NULL. + */ +int mbedtls_chacha20_setkey(mbedtls_chacha20_context *ctx, + const unsigned char key[32]); + +/** + * \brief This function sets the nonce and initial counter value. + * + * \note A ChaCha20 context can be re-used with the same key by + * calling this function to change the nonce. + * + * \warning You must never use the same nonce twice with the same key. + * This would void any confidentiality guarantees for the + * messages encrypted with the same nonce and key. + * + * \param ctx The ChaCha20 context to which the nonce should be bound. + * It must be initialized and bound to a key. + * \param nonce The nonce. This must be \c 12 Bytes in size. + * \param counter The initial counter value. This is usually \c 0. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CHACHA20_BAD_INPUT_DATA if ctx or nonce is + * NULL. + */ +int mbedtls_chacha20_starts(mbedtls_chacha20_context *ctx, + const unsigned char nonce[12], + uint32_t counter); + +/** + * \brief This function encrypts or decrypts data. + * + * Since ChaCha20 is a stream cipher, the same operation is + * used for encrypting and decrypting data. + * + * \note The \p input and \p output pointers must either be equal or + * point to non-overlapping buffers. + * + * \note \c mbedtls_chacha20_setkey() and + * \c mbedtls_chacha20_starts() must be called at least once + * to setup the context before this function can be called. + * + * \note This function can be called multiple times in a row in + * order to encrypt of decrypt data piecewise with the same + * key and nonce. + * + * \param ctx The ChaCha20 context to use for encryption or decryption. + * It must be initialized and bound to a key and nonce. + * \param size The length of the input data in Bytes. + * \param input The buffer holding the input data. + * This pointer can be \c NULL if `size == 0`. + * \param output The buffer holding the output data. + * This must be able to hold \p size Bytes. + * This pointer can be \c NULL if `size == 0`. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_chacha20_update(mbedtls_chacha20_context *ctx, + size_t size, + const unsigned char *input, + unsigned char *output); + +/** + * \brief This function encrypts or decrypts data with ChaCha20 and + * the given key and nonce. + * + * Since ChaCha20 is a stream cipher, the same operation is + * used for encrypting and decrypting data. + * + * \warning You must never use the same (key, nonce) pair more than + * once. This would void any confidentiality guarantees for + * the messages encrypted with the same nonce and key. + * + * \note The \p input and \p output pointers must either be equal or + * point to non-overlapping buffers. + * + * \param key The encryption/decryption key. + * This must be \c 32 Bytes in length. + * \param nonce The nonce. This must be \c 12 Bytes in size. + * \param counter The initial counter value. This is usually \c 0. + * \param size The length of the input data in Bytes. + * \param input The buffer holding the input data. + * This pointer can be \c NULL if `size == 0`. + * \param output The buffer holding the output data. + * This must be able to hold \p size Bytes. + * This pointer can be \c NULL if `size == 0`. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_chacha20_crypt(const unsigned char key[32], + const unsigned char nonce[12], + uint32_t counter, + size_t size, + const unsigned char *input, + unsigned char *output); + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief The ChaCha20 checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_chacha20_self_test(int verbose); +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_CHACHA20_H */ diff --git a/include/mbedtls/chachapoly.h b/include/mbedtls/chachapoly.h new file mode 100644 index 0000000..3dc21e3 --- /dev/null +++ b/include/mbedtls/chachapoly.h @@ -0,0 +1,342 @@ +/** + * \file chachapoly.h + * + * \brief This file contains the AEAD-ChaCha20-Poly1305 definitions and + * functions. + * + * ChaCha20-Poly1305 is an algorithm for Authenticated Encryption + * with Associated Data (AEAD) that can be used to encrypt and + * authenticate data. It is based on ChaCha20 and Poly1305 by Daniel + * Bernstein and was standardized in RFC 7539. + * + * \author Daniel King <damaki.gh@gmail.com> + */ + +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CHACHAPOLY_H +#define MBEDTLS_CHACHAPOLY_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +/* for shared error codes */ +#include "mbedtls/poly1305.h" + +/** The requested operation is not permitted in the current state. */ +#define MBEDTLS_ERR_CHACHAPOLY_BAD_STATE -0x0054 +/** Authenticated decryption failed: data was not authentic. */ +#define MBEDTLS_ERR_CHACHAPOLY_AUTH_FAILED -0x0056 + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum { + MBEDTLS_CHACHAPOLY_ENCRYPT, /**< The mode value for performing encryption. */ + MBEDTLS_CHACHAPOLY_DECRYPT /**< The mode value for performing decryption. */ +} +mbedtls_chachapoly_mode_t; + +#if !defined(MBEDTLS_CHACHAPOLY_ALT) + +#include "mbedtls/chacha20.h" + +typedef struct mbedtls_chachapoly_context { + mbedtls_chacha20_context MBEDTLS_PRIVATE(chacha20_ctx); /**< The ChaCha20 context. */ + mbedtls_poly1305_context MBEDTLS_PRIVATE(poly1305_ctx); /**< The Poly1305 context. */ + uint64_t MBEDTLS_PRIVATE(aad_len); /**< The length (bytes) of the Additional Authenticated Data. */ + uint64_t MBEDTLS_PRIVATE(ciphertext_len); /**< The length (bytes) of the ciphertext. */ + int MBEDTLS_PRIVATE(state); /**< The current state of the context. */ + mbedtls_chachapoly_mode_t MBEDTLS_PRIVATE(mode); /**< Cipher mode (encrypt or decrypt). */ +} +mbedtls_chachapoly_context; + +#else /* !MBEDTLS_CHACHAPOLY_ALT */ +#include "chachapoly_alt.h" +#endif /* !MBEDTLS_CHACHAPOLY_ALT */ + +/** + * \brief This function initializes the specified ChaCha20-Poly1305 context. + * + * It must be the first API called before using + * the context. It must be followed by a call to + * \c mbedtls_chachapoly_setkey() before any operation can be + * done, and to \c mbedtls_chachapoly_free() once all + * operations with that context have been finished. + * + * In order to encrypt or decrypt full messages at once, for + * each message you should make a single call to + * \c mbedtls_chachapoly_crypt_and_tag() or + * \c mbedtls_chachapoly_auth_decrypt(). + * + * In order to encrypt messages piecewise, for each + * message you should make a call to + * \c mbedtls_chachapoly_starts(), then 0 or more calls to + * \c mbedtls_chachapoly_update_aad(), then 0 or more calls to + * \c mbedtls_chachapoly_update(), then one call to + * \c mbedtls_chachapoly_finish(). + * + * \warning Decryption with the piecewise API is discouraged! Always + * use \c mbedtls_chachapoly_auth_decrypt() when possible! + * + * If however this is not possible because the data is too + * large to fit in memory, you need to: + * + * - call \c mbedtls_chachapoly_starts() and (if needed) + * \c mbedtls_chachapoly_update_aad() as above, + * - call \c mbedtls_chachapoly_update() multiple times and + * ensure its output (the plaintext) is NOT used in any other + * way than placing it in temporary storage at this point, + * - call \c mbedtls_chachapoly_finish() to compute the + * authentication tag and compared it in constant time to the + * tag received with the ciphertext. + * + * If the tags are not equal, you must immediately discard + * all previous outputs of \c mbedtls_chachapoly_update(), + * otherwise you can now safely use the plaintext. + * + * \param ctx The ChachaPoly context to initialize. Must not be \c NULL. + */ +void mbedtls_chachapoly_init(mbedtls_chachapoly_context *ctx); + +/** + * \brief This function releases and clears the specified + * ChaCha20-Poly1305 context. + * + * \param ctx The ChachaPoly context to clear. This may be \c NULL, in which + * case this function is a no-op. + */ +void mbedtls_chachapoly_free(mbedtls_chachapoly_context *ctx); + +/** + * \brief This function sets the ChaCha20-Poly1305 + * symmetric encryption key. + * + * \param ctx The ChaCha20-Poly1305 context to which the key should be + * bound. This must be initialized. + * \param key The \c 256 Bit (\c 32 Bytes) key. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_chachapoly_setkey(mbedtls_chachapoly_context *ctx, + const unsigned char key[32]); + +/** + * \brief This function starts a ChaCha20-Poly1305 encryption or + * decryption operation. + * + * \warning You must never use the same nonce twice with the same key. + * This would void any confidentiality and authenticity + * guarantees for the messages encrypted with the same nonce + * and key. + * + * \note If the context is being used for AAD only (no data to + * encrypt or decrypt) then \p mode can be set to any value. + * + * \warning Decryption with the piecewise API is discouraged, see the + * warning on \c mbedtls_chachapoly_init(). + * + * \param ctx The ChaCha20-Poly1305 context. This must be initialized + * and bound to a key. + * \param nonce The nonce/IV to use for the message. + * This must be a readable buffer of length \c 12 Bytes. + * \param mode The operation to perform: #MBEDTLS_CHACHAPOLY_ENCRYPT or + * #MBEDTLS_CHACHAPOLY_DECRYPT (discouraged, see warning). + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_chachapoly_starts(mbedtls_chachapoly_context *ctx, + const unsigned char nonce[12], + mbedtls_chachapoly_mode_t mode); + +/** + * \brief This function feeds additional data to be authenticated + * into an ongoing ChaCha20-Poly1305 operation. + * + * The Additional Authenticated Data (AAD), also called + * Associated Data (AD) is only authenticated but not + * encrypted nor included in the encrypted output. It is + * usually transmitted separately from the ciphertext or + * computed locally by each party. + * + * \note This function is called before data is encrypted/decrypted. + * I.e. call this function to process the AAD before calling + * \c mbedtls_chachapoly_update(). + * + * You may call this function multiple times to process + * an arbitrary amount of AAD. It is permitted to call + * this function 0 times, if no AAD is used. + * + * This function cannot be called any more if data has + * been processed by \c mbedtls_chachapoly_update(), + * or if the context has been finished. + * + * \warning Decryption with the piecewise API is discouraged, see the + * warning on \c mbedtls_chachapoly_init(). + * + * \param ctx The ChaCha20-Poly1305 context. This must be initialized + * and bound to a key. + * \param aad_len The length in Bytes of the AAD. The length has no + * restrictions. + * \param aad Buffer containing the AAD. + * This pointer can be \c NULL if `aad_len == 0`. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA + * if \p ctx or \p aad are NULL. + * \return #MBEDTLS_ERR_CHACHAPOLY_BAD_STATE + * if the operations has not been started or has been + * finished, or if the AAD has been finished. + */ +int mbedtls_chachapoly_update_aad(mbedtls_chachapoly_context *ctx, + const unsigned char *aad, + size_t aad_len); + +/** + * \brief Thus function feeds data to be encrypted or decrypted + * into an on-going ChaCha20-Poly1305 + * operation. + * + * The direction (encryption or decryption) depends on the + * mode that was given when calling + * \c mbedtls_chachapoly_starts(). + * + * You may call this function multiple times to process + * an arbitrary amount of data. It is permitted to call + * this function 0 times, if no data is to be encrypted + * or decrypted. + * + * \warning Decryption with the piecewise API is discouraged, see the + * warning on \c mbedtls_chachapoly_init(). + * + * \param ctx The ChaCha20-Poly1305 context to use. This must be initialized. + * \param len The length (in bytes) of the data to encrypt or decrypt. + * \param input The buffer containing the data to encrypt or decrypt. + * This pointer can be \c NULL if `len == 0`. + * \param output The buffer to where the encrypted or decrypted data is + * written. This must be able to hold \p len bytes. + * This pointer can be \c NULL if `len == 0`. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CHACHAPOLY_BAD_STATE + * if the operation has not been started or has been + * finished. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_chachapoly_update(mbedtls_chachapoly_context *ctx, + size_t len, + const unsigned char *input, + unsigned char *output); + +/** + * \brief This function finished the ChaCha20-Poly1305 operation and + * generates the MAC (authentication tag). + * + * \param ctx The ChaCha20-Poly1305 context to use. This must be initialized. + * \param mac The buffer to where the 128-bit (16 bytes) MAC is written. + * + * \warning Decryption with the piecewise API is discouraged, see the + * warning on \c mbedtls_chachapoly_init(). + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CHACHAPOLY_BAD_STATE + * if the operation has not been started or has been + * finished. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_chachapoly_finish(mbedtls_chachapoly_context *ctx, + unsigned char mac[16]); + +/** + * \brief This function performs a complete ChaCha20-Poly1305 + * authenticated encryption with the previously-set key. + * + * \note Before using this function, you must set the key with + * \c mbedtls_chachapoly_setkey(). + * + * \warning You must never use the same nonce twice with the same key. + * This would void any confidentiality and authenticity + * guarantees for the messages encrypted with the same nonce + * and key. + * + * \param ctx The ChaCha20-Poly1305 context to use (holds the key). + * This must be initialized. + * \param length The length (in bytes) of the data to encrypt or decrypt. + * \param nonce The 96-bit (12 bytes) nonce/IV to use. + * \param aad The buffer containing the additional authenticated + * data (AAD). This pointer can be \c NULL if `aad_len == 0`. + * \param aad_len The length (in bytes) of the AAD data to process. + * \param input The buffer containing the data to encrypt or decrypt. + * This pointer can be \c NULL if `ilen == 0`. + * \param output The buffer to where the encrypted or decrypted data + * is written. This pointer can be \c NULL if `ilen == 0`. + * \param tag The buffer to where the computed 128-bit (16 bytes) MAC + * is written. This must not be \c NULL. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_chachapoly_encrypt_and_tag(mbedtls_chachapoly_context *ctx, + size_t length, + const unsigned char nonce[12], + const unsigned char *aad, + size_t aad_len, + const unsigned char *input, + unsigned char *output, + unsigned char tag[16]); + +/** + * \brief This function performs a complete ChaCha20-Poly1305 + * authenticated decryption with the previously-set key. + * + * \note Before using this function, you must set the key with + * \c mbedtls_chachapoly_setkey(). + * + * \param ctx The ChaCha20-Poly1305 context to use (holds the key). + * \param length The length (in Bytes) of the data to decrypt. + * \param nonce The \c 96 Bit (\c 12 bytes) nonce/IV to use. + * \param aad The buffer containing the additional authenticated data (AAD). + * This pointer can be \c NULL if `aad_len == 0`. + * \param aad_len The length (in bytes) of the AAD data to process. + * \param tag The buffer holding the authentication tag. + * This must be a readable buffer of length \c 16 Bytes. + * \param input The buffer containing the data to decrypt. + * This pointer can be \c NULL if `ilen == 0`. + * \param output The buffer to where the decrypted data is written. + * This pointer can be \c NULL if `ilen == 0`. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CHACHAPOLY_AUTH_FAILED + * if the data was not authentic. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_chachapoly_auth_decrypt(mbedtls_chachapoly_context *ctx, + size_t length, + const unsigned char nonce[12], + const unsigned char *aad, + size_t aad_len, + const unsigned char tag[16], + const unsigned char *input, + unsigned char *output); + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief The ChaCha20-Poly1305 checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_chachapoly_self_test(int verbose); +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_CHACHAPOLY_H */ diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h new file mode 100644 index 0000000..e479ef3 --- /dev/null +++ b/include/mbedtls/check_config.h @@ -0,0 +1,1206 @@ +/** + * \file check_config.h + * + * \brief Consistency checks for configuration options + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CHECK_CONFIG_H +#define MBEDTLS_CHECK_CONFIG_H + +/* *INDENT-OFF* */ +/* + * We assume CHAR_BIT is 8 in many places. In practice, this is true on our + * target platforms, so not an issue, but let's just be extra sure. + */ +#include <limits.h> +#if CHAR_BIT != 8 +#error "Mbed TLS requires a platform with 8-bit chars" +#endif + +#include <stdint.h> + +#if defined(__MINGW32__) || (defined(_MSC_VER) && _MSC_VER <= 1900) +#if !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_C is required on Windows" +#endif + +/* Fix the config here. Not convenient to put an #ifdef _WIN32 in mbedtls_config.h as + * it would confuse config.py. */ +#if !defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) && \ + !defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) +#define MBEDTLS_PLATFORM_SNPRINTF_ALT +#endif + +#if !defined(MBEDTLS_PLATFORM_VSNPRINTF_ALT) && \ + !defined(MBEDTLS_PLATFORM_VSNPRINTF_MACRO) +#define MBEDTLS_PLATFORM_VSNPRINTF_ALT +#endif +#endif /* _MINGW32__ || (_MSC_VER && (_MSC_VER <= 1900)) */ + +#if defined(TARGET_LIKE_MBED) && defined(MBEDTLS_NET_C) +#error "The NET module is not available for mbed OS - please use the network functions provided by Mbed OS" +#endif + +#if defined(MBEDTLS_DEPRECATED_WARNING) && \ + !defined(__GNUC__) && !defined(__clang__) +#error "MBEDTLS_DEPRECATED_WARNING only works with GCC and Clang" +#endif + +#if defined(MBEDTLS_HAVE_TIME_DATE) && !defined(MBEDTLS_HAVE_TIME) +#error "MBEDTLS_HAVE_TIME_DATE without MBEDTLS_HAVE_TIME does not make sense" +#endif + +/* Check that each MBEDTLS_ECP_DP_xxx symbol has its PSA_WANT_ECC_xxx counterpart + * when PSA crypto is enabled. */ +#if defined(MBEDTLS_PSA_CRYPTO_CONFIG) || defined(MBEDTLS_PSA_CRYPTO_C) + +#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) && !defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256) +#error "MBEDTLS_ECP_DP_BP256R1_ENABLED defined, but not its PSA counterpart" +#endif + +#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) && !defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384) +#error "MBEDTLS_ECP_DP_BP384R1_ENABLED defined, but not its PSA counterpart" +#endif + +#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) && !defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512) +#error "MBEDTLS_ECP_DP_BP512R1_ENABLED defined, but not its PSA counterpart" +#endif + +#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) && !defined(PSA_WANT_ECC_MONTGOMERY_255) +#error "MBEDTLS_ECP_DP_CURVE25519_ENABLED defined, but not its PSA counterpart" +#endif + +#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) && !defined(PSA_WANT_ECC_MONTGOMERY_448) +#error "MBEDTLS_ECP_DP_CURVE448_ENABLED defined, but not its PSA counterpart" +#endif + +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) && !defined(PSA_WANT_ECC_SECP_R1_192) +#error "MBEDTLS_ECP_DP_SECP192R1_ENABLED defined, but not its PSA counterpart" +#endif + +#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) && !defined(PSA_WANT_ECC_SECP_R1_224) +#error "MBEDTLS_ECP_DP_SECP224R1_ENABLED defined, but not its PSA counterpart" +#endif + +#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) && !defined(PSA_WANT_ECC_SECP_R1_256) +#error "MBEDTLS_ECP_DP_SECP256R1_ENABLED defined, but not its PSA counterpart" +#endif + +#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) && !defined(PSA_WANT_ECC_SECP_R1_384) +#error "MBEDTLS_ECP_DP_SECP384R1_ENABLED defined, but not its PSA counterpart" +#endif + +#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) && !defined(PSA_WANT_ECC_SECP_R1_521) +#error "MBEDTLS_ECP_DP_SECP521R1_ENABLED defined, but not its PSA counterpart" +#endif + +#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) && !defined(PSA_WANT_ECC_SECP_K1_192) +#error "MBEDTLS_ECP_DP_SECP192K1_ENABLED defined, but not its PSA counterpart" +#endif + +/* SECP224K1 is buggy in PSA API so we skip this check */ +#if 0 && defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) && !defined(PSA_WANT_ECC_SECP_K1_224) +#error "MBEDTLS_ECP_DP_SECP224K1_ENABLED defined, but not its PSA counterpart" +#endif + +#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) && !defined(PSA_WANT_ECC_SECP_K1_256) +#error "MBEDTLS_ECP_DP_SECP256K1_ENABLED defined, but not its PSA counterpart" +#endif + +#endif /* MBEDTLS_PSA_CRYPTO_CONFIG || MBEDTLS_PSA_CRYPTO_C */ + +/* Limitations on ECC key types acceleration: if we have any of `PUBLIC_KEY`, + * `KEY_PAIR_BASIC`, `KEY_PAIR_IMPORT`, `KEY_PAIR_EXPORT` then we must have + * all 4 of them. + */ +#if defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_PUBLIC_KEY) || \ + defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_BASIC) || \ + defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_IMPORT) || \ + defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_EXPORT) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_PUBLIC_KEY) || \ + !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_BASIC) || \ + !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_IMPORT) || \ + !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_EXPORT) +#error "Unsupported partial support for ECC key type acceleration, see docs/driver-only-builds.md" +#endif /* not all of public, basic, import, export */ +#endif /* one of public, basic, import, export */ + +/* Limitations on ECC curves acceleration: partial curve acceleration is only + * supported with crypto excluding PK, X.509 or TLS. + * Note: no need to check X.509 as it depends on PK. */ +#if defined(MBEDTLS_PSA_ACCEL_ECC_BRAINPOOL_P_R1_256) || \ + defined(MBEDTLS_PSA_ACCEL_ECC_BRAINPOOL_P_R1_384) || \ + defined(MBEDTLS_PSA_ACCEL_ECC_BRAINPOOL_P_R1_512) || \ + defined(MBEDTLS_PSA_ACCEL_ECC_MONTGOMERY_255) || \ + defined(MBEDTLS_PSA_ACCEL_ECC_MONTGOMERY_448) || \ + defined(MBEDTLS_PSA_ACCEL_ECC_SECP_K1_192) || \ + defined(MBEDTLS_PSA_ACCEL_ECC_SECP_K1_224) || \ + defined(MBEDTLS_PSA_ACCEL_ECC_SECP_K1_256) || \ + defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_192) || \ + defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_224) || \ + defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_256) || \ + defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_384) || \ + defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_521) +#if defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES) +#if defined(MBEDTLS_PK_C) || \ + defined(MBEDTLS_SSL_TLS_C) +#error "Unsupported partial support for ECC curves acceleration, see docs/driver-only-builds.md" +#endif /* modules beyond what's supported */ +#endif /* not all curves accelerated */ +#endif /* some curve accelerated */ + +#if defined(MBEDTLS_CTR_DRBG_C) && !defined(MBEDTLS_AES_C) +#error "MBEDTLS_CTR_DRBG_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_DHM_C) && !defined(MBEDTLS_BIGNUM_C) +#error "MBEDTLS_DHM_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_CMAC_C) && \ + ( !defined(MBEDTLS_CIPHER_C ) || ( !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_DES_C) ) ) +#error "MBEDTLS_CMAC_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_NIST_KW_C) && \ + ( !defined(MBEDTLS_AES_C) || !defined(MBEDTLS_CIPHER_C) ) +#error "MBEDTLS_NIST_KW_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECDH_C) && !defined(MBEDTLS_ECP_C) +#error "MBEDTLS_ECDH_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECDSA_C) && \ + ( !defined(MBEDTLS_ECP_C) || \ + !( defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) ) || \ + !defined(MBEDTLS_ASN1_PARSE_C) || \ + !defined(MBEDTLS_ASN1_WRITE_C) ) +#error "MBEDTLS_ECDSA_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECJPAKE_C) && \ + ( !defined(MBEDTLS_ECP_C) || \ + !( defined(MBEDTLS_MD_C) || defined(MBEDTLS_PSA_CRYPTO_C) ) ) +#error "MBEDTLS_ECJPAKE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECP_RESTARTABLE) && \ + ( defined(MBEDTLS_ECDH_COMPUTE_SHARED_ALT) || \ + defined(MBEDTLS_ECDH_GEN_PUBLIC_ALT) || \ + defined(MBEDTLS_ECDSA_SIGN_ALT) || \ + defined(MBEDTLS_ECDSA_VERIFY_ALT) || \ + defined(MBEDTLS_ECDSA_GENKEY_ALT) || \ + defined(MBEDTLS_ECP_INTERNAL_ALT) || \ + defined(MBEDTLS_ECP_ALT) ) +#error "MBEDTLS_ECP_RESTARTABLE defined, but it cannot coexist with an alternative ECP implementation" +#endif + +#if defined(MBEDTLS_ECP_RESTARTABLE) && \ + !defined(MBEDTLS_ECP_C) +#error "MBEDTLS_ECP_RESTARTABLE defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECDSA_DETERMINISTIC) && !defined(MBEDTLS_HMAC_DRBG_C) +#error "MBEDTLS_ECDSA_DETERMINISTIC defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECP_C) && ( !defined(MBEDTLS_BIGNUM_C) || ( \ + !defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) && \ + !defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) ) ) +#error "MBEDTLS_ECP_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PK_PARSE_C) && !defined(MBEDTLS_ASN1_PARSE_C) +#error "MBEDTLS_PK_PARSE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PKCS12_C) && !defined(MBEDTLS_CIPHER_C) +#error "MBEDTLS_PKCS12_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PKCS5_C) && \ + !defined(MBEDTLS_CIPHER_C) +#error "MBEDTLS_PKCS5_C defined, but not all prerequisites" +#endif + +/* Helpers for hash dependencies, will be undefined at the end of the file */ +/* Do SHA-256, 384, 512 to cover Entropy and TLS. */ +#if defined(MBEDTLS_SHA256_C) || \ + (defined(MBEDTLS_PSA_CRYPTO_C) && defined(PSA_WANT_ALG_SHA_256)) +#define MBEDTLS_MD_HAVE_SHA256 +#endif +#if defined(MBEDTLS_SHA384_C) || \ + (defined(MBEDTLS_PSA_CRYPTO_C) && defined(PSA_WANT_ALG_SHA_384)) +#define MBEDTLS_MD_HAVE_SHA384 +#endif +#if defined(MBEDTLS_SHA512_C) || \ + (defined(MBEDTLS_PSA_CRYPTO_C) && defined(PSA_WANT_ALG_SHA_512)) +#define MBEDTLS_MD_HAVE_SHA512 +#endif + +#if defined(MBEDTLS_ENTROPY_C) && \ + !(defined(MBEDTLS_MD_HAVE_SHA512) || defined(MBEDTLS_MD_HAVE_SHA256)) +#error "MBEDTLS_ENTROPY_C defined, but not all prerequisites" +#endif +#if defined(MBEDTLS_ENTROPY_C) && \ + defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) && (MBEDTLS_CTR_DRBG_ENTROPY_LEN > 64) +#error "MBEDTLS_CTR_DRBG_ENTROPY_LEN value too high" +#endif +#if defined(MBEDTLS_ENTROPY_C) && \ + (defined(MBEDTLS_ENTROPY_FORCE_SHA256) || !defined(MBEDTLS_MD_HAVE_SHA512)) \ + && defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) && (MBEDTLS_CTR_DRBG_ENTROPY_LEN > 32) +#error "MBEDTLS_CTR_DRBG_ENTROPY_LEN value too high" +#endif +#if defined(MBEDTLS_ENTROPY_C) && \ + defined(MBEDTLS_ENTROPY_FORCE_SHA256) && !defined(MBEDTLS_MD_HAVE_SHA256) +#error "MBEDTLS_ENTROPY_FORCE_SHA256 defined, but not all prerequisites" +#endif + +#if defined(__has_feature) +#if __has_feature(memory_sanitizer) +#define MBEDTLS_HAS_MEMSAN +#endif +#endif +#if defined(MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN) && !defined(MBEDTLS_HAS_MEMSAN) +#error "MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN requires building with MemorySanitizer" +#endif +#undef MBEDTLS_HAS_MEMSAN + +#if defined(MBEDTLS_CCM_C) && ( \ + !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_CAMELLIA_C) && !defined(MBEDTLS_ARIA_C) ) +#error "MBEDTLS_CCM_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_CCM_C) && !defined(MBEDTLS_CIPHER_C) +#error "MBEDTLS_CCM_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_GCM_C) && ( \ + !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_CAMELLIA_C) && !defined(MBEDTLS_ARIA_C) ) +#error "MBEDTLS_GCM_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_GCM_C) && !defined(MBEDTLS_CIPHER_C) +#error "MBEDTLS_GCM_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_CHACHAPOLY_C) && !defined(MBEDTLS_CHACHA20_C) +#error "MBEDTLS_CHACHAPOLY_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_CHACHAPOLY_C) && !defined(MBEDTLS_POLY1305_C) +#error "MBEDTLS_CHACHAPOLY_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECP_RANDOMIZE_JAC_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT) +#error "MBEDTLS_ECP_RANDOMIZE_JAC_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECP_ADD_MIXED_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT) +#error "MBEDTLS_ECP_ADD_MIXED_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECP_DOUBLE_JAC_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT) +#error "MBEDTLS_ECP_DOUBLE_JAC_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT) +#error "MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECP_NORMALIZE_JAC_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT) +#error "MBEDTLS_ECP_NORMALIZE_JAC_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT) +#error "MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECP_RANDOMIZE_MXZ_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT) +#error "MBEDTLS_ECP_RANDOMIZE_MXZ_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECP_NORMALIZE_MXZ_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT) +#error "MBEDTLS_ECP_NORMALIZE_MXZ_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ECP_NO_FALLBACK) && !defined(MBEDTLS_ECP_INTERNAL_ALT) +#error "MBEDTLS_ECP_NO_FALLBACK defined, but no alternative implementation enabled" +#endif + +#if defined(MBEDTLS_HKDF_C) && !defined(MBEDTLS_MD_C) +#error "MBEDTLS_HKDF_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_HMAC_DRBG_C) && !defined(MBEDTLS_MD_C) +#error "MBEDTLS_HMAC_DRBG_C defined, but not all prerequisites" +#endif + +/* Helper for JPAKE dependencies, will be undefined at the end of the file */ +#if defined(MBEDTLS_USE_PSA_CRYPTO) +#if defined(PSA_WANT_ALG_JPAKE) && defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC) +#define MBEDTLS_PK_HAVE_JPAKE +#endif +#else /* MBEDTLS_USE_PSA_CRYPTO */ +#if defined(MBEDTLS_ECJPAKE_C) +#define MBEDTLS_PK_HAVE_JPAKE +#endif +#endif /* MBEDTLS_USE_PSA_CRYPTO */ + +/* Helper for curve SECP256R1 */ +#if defined(MBEDTLS_USE_PSA_CRYPTO) +#if defined(PSA_WANT_ECC_SECP_R1_256) +#define MBEDTLS_PK_HAVE_CURVE_SECP256R1 +#endif +#else /* MBEDTLS_USE_PSA_CRYPTO */ +#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) +#define MBEDTLS_PK_HAVE_CURVE_SECP256R1 +#endif +#endif /* MBEDTLS_USE_PSA_CRYPTO */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) && \ + ( !defined(MBEDTLS_CAN_ECDH) || \ + !defined(MBEDTLS_PK_CAN_ECDSA_SIGN) || \ + !defined(MBEDTLS_X509_CRT_PARSE_C) ) +#error "MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \ + ( !defined(MBEDTLS_CAN_ECDH) || !defined(MBEDTLS_RSA_C) || \ + !defined(MBEDTLS_X509_CRT_PARSE_C) ) +#error "MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) && !defined(MBEDTLS_DHM_C) +#error "MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) && \ + !defined(MBEDTLS_CAN_ECDH) +#error "MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) && \ + ( !defined(MBEDTLS_DHM_C) || !defined(MBEDTLS_RSA_C) || \ + !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_PKCS1_V15) ) +#error "MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) && \ + ( !defined(MBEDTLS_CAN_ECDH) || !defined(MBEDTLS_RSA_C) || \ + !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_PKCS1_V15) ) +#error "MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) && \ + ( !defined(MBEDTLS_CAN_ECDH) || \ + !defined(MBEDTLS_PK_CAN_ECDSA_SIGN) || \ + !defined(MBEDTLS_X509_CRT_PARSE_C) ) +#error "MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) && \ + ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \ + !defined(MBEDTLS_PKCS1_V15) ) +#error "MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) && \ + ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \ + !defined(MBEDTLS_PKCS1_V15) ) +#error "MBEDTLS_KEY_EXCHANGE_RSA_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) && \ + ( !defined(MBEDTLS_PK_HAVE_JPAKE) || \ + !defined(MBEDTLS_PK_HAVE_CURVE_SECP256R1) ) +#error "MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED defined, but not all prerequisites" +#endif + +/* Use of EC J-PAKE in TLS requires SHA-256. */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) && \ + !defined(MBEDTLS_MD_HAVE_SHA256) +#error "MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) && \ + !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) && \ + ( !defined(MBEDTLS_SHA256_C) && \ + !defined(MBEDTLS_SHA512_C) && \ + !defined(MBEDTLS_SHA1_C) ) +#error "!MBEDTLS_SSL_KEEP_PEER_CERTIFICATE requires MBEDTLS_SHA512_C, MBEDTLS_SHA256_C or MBEDTLS_SHA1_C" +#endif + +#if defined(MBEDTLS_MD_C) && !( \ + defined(MBEDTLS_MD5_C) || \ + defined(MBEDTLS_RIPEMD160_C) || \ + defined(MBEDTLS_SHA1_C) || \ + defined(MBEDTLS_SHA224_C) || \ + defined(MBEDTLS_SHA256_C) || \ + defined(MBEDTLS_SHA384_C) || \ + defined(MBEDTLS_SHA512_C) || \ + (defined(MBEDTLS_PSA_CRYPTO_C) && \ + (defined(PSA_WANT_ALG_MD5) || \ + defined(PSA_WANT_ALG_RIPEMD160) || \ + defined(PSA_WANT_ALG_SHA_1) || \ + defined(PSA_WANT_ALG_SHA_224) || \ + defined(PSA_WANT_ALG_SHA_256) || \ + defined(PSA_WANT_ALG_SHA_384) || \ + defined(PSA_WANT_ALG_SHA_512)))) +#error "MBEDTLS_MD_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_LMS_C) && \ + ! ( defined(MBEDTLS_PSA_CRYPTO_C) && defined(PSA_WANT_ALG_SHA_256) ) +#error "MBEDTLS_LMS_C requires MBEDTLS_PSA_CRYPTO_C and PSA_WANT_ALG_SHA_256" +#endif + +#if defined(MBEDTLS_LMS_PRIVATE) && \ + ( !defined(MBEDTLS_LMS_C) ) +#error "MBEDTLS_LMS_PRIVATE requires MBEDTLS_LMS_C" +#endif + +#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) && \ + ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) ) +#error "MBEDTLS_MEMORY_BUFFER_ALLOC_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_MEMORY_BACKTRACE) && !defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) +#error "MBEDTLS_MEMORY_BACKTRACE defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_MEMORY_DEBUG) && !defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) +#error "MBEDTLS_MEMORY_DEBUG defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PEM_PARSE_C) && !defined(MBEDTLS_BASE64_C) +#error "MBEDTLS_PEM_PARSE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PEM_WRITE_C) && !defined(MBEDTLS_BASE64_C) +#error "MBEDTLS_PEM_WRITE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PK_C) && \ + !defined(MBEDTLS_RSA_C) && !defined(MBEDTLS_PK_HAVE_ECC_KEYS) +#error "MBEDTLS_PK_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PK_PARSE_C) && !defined(MBEDTLS_PK_C) +#error "MBEDTLS_PK_PARSE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PK_WRITE_C) && !defined(MBEDTLS_PK_C) +#error "MBEDTLS_PK_WRITE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_EXIT_ALT) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_EXIT_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_EXIT_MACRO) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_EXIT_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_EXIT_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_EXIT) ||\ + defined(MBEDTLS_PLATFORM_EXIT_ALT) ) +#error "MBEDTLS_PLATFORM_EXIT_MACRO and MBEDTLS_PLATFORM_STD_EXIT/MBEDTLS_PLATFORM_EXIT_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_SETBUF_ALT) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_SETBUF_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_SETBUF_MACRO) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_SETBUF_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_SETBUF_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_SETBUF) ||\ + defined(MBEDTLS_PLATFORM_SETBUF_ALT) ) +#error "MBEDTLS_PLATFORM_SETBUF_MACRO and MBEDTLS_PLATFORM_STD_SETBUF/MBEDTLS_PLATFORM_SETBUF_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_TIME_ALT) &&\ + ( !defined(MBEDTLS_PLATFORM_C) ||\ + !defined(MBEDTLS_HAVE_TIME) ) +#error "MBEDTLS_PLATFORM_TIME_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_TIME_MACRO) &&\ + ( !defined(MBEDTLS_PLATFORM_C) ||\ + !defined(MBEDTLS_HAVE_TIME) ) +#error "MBEDTLS_PLATFORM_TIME_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_MS_TIME_TYPE_MACRO) &&\ + ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_HAVE_TIME) ) +#error "MBEDTLS_PLATFORM_MS_TIME_TYPE_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_MS_TIME_ALT) && \ + ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_HAVE_TIME) ) +#error "MBEDTLS_PLATFORM_MS_TIME_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_TIME_TYPE_MACRO) &&\ + ( !defined(MBEDTLS_PLATFORM_C) ||\ + !defined(MBEDTLS_HAVE_TIME) ) +#error "MBEDTLS_PLATFORM_TIME_TYPE_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_TIME_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_TIME) ||\ + defined(MBEDTLS_PLATFORM_TIME_ALT) ) +#error "MBEDTLS_PLATFORM_TIME_MACRO and MBEDTLS_PLATFORM_STD_TIME/MBEDTLS_PLATFORM_TIME_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_TIME_TYPE_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_TIME) ||\ + defined(MBEDTLS_PLATFORM_TIME_ALT) ) +#error "MBEDTLS_PLATFORM_TIME_TYPE_MACRO and MBEDTLS_PLATFORM_STD_TIME/MBEDTLS_PLATFORM_TIME_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_FPRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_FPRINTF_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_FPRINTF_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_FPRINTF) ||\ + defined(MBEDTLS_PLATFORM_FPRINTF_ALT) ) +#error "MBEDTLS_PLATFORM_FPRINTF_MACRO and MBEDTLS_PLATFORM_STD_FPRINTF/MBEDTLS_PLATFORM_FPRINTF_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_FREE_MACRO) &&\ + ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) ) +#error "MBEDTLS_PLATFORM_FREE_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_FREE_MACRO) &&\ + defined(MBEDTLS_PLATFORM_STD_FREE) +#error "MBEDTLS_PLATFORM_FREE_MACRO and MBEDTLS_PLATFORM_STD_FREE cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_FREE_MACRO) && !defined(MBEDTLS_PLATFORM_CALLOC_MACRO) +#error "MBEDTLS_PLATFORM_CALLOC_MACRO must be defined if MBEDTLS_PLATFORM_FREE_MACRO is" +#endif + +#if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) &&\ + ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) ) +#error "MBEDTLS_PLATFORM_CALLOC_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) &&\ + defined(MBEDTLS_PLATFORM_STD_CALLOC) +#error "MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_STD_CALLOC cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) && !defined(MBEDTLS_PLATFORM_FREE_MACRO) +#error "MBEDTLS_PLATFORM_FREE_MACRO must be defined if MBEDTLS_PLATFORM_CALLOC_MACRO is" +#endif + +#if defined(MBEDTLS_PLATFORM_MEMORY) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_MEMORY defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_PRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_PRINTF_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_PRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_PRINTF_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_PRINTF_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_PRINTF) ||\ + defined(MBEDTLS_PLATFORM_PRINTF_ALT) ) +#error "MBEDTLS_PLATFORM_PRINTF_MACRO and MBEDTLS_PLATFORM_STD_PRINTF/MBEDTLS_PLATFORM_PRINTF_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_SNPRINTF_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_SNPRINTF_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_SNPRINTF) ||\ + defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) ) +#error "MBEDTLS_PLATFORM_SNPRINTF_MACRO and MBEDTLS_PLATFORM_STD_SNPRINTF/MBEDTLS_PLATFORM_SNPRINTF_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_VSNPRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_VSNPRINTF_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_VSNPRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C) +#error "MBEDTLS_PLATFORM_VSNPRINTF_MACRO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_VSNPRINTF_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_VSNPRINTF) ||\ + defined(MBEDTLS_PLATFORM_VSNPRINTF_ALT) ) +#error "MBEDTLS_PLATFORM_VSNPRINTF_MACRO and MBEDTLS_PLATFORM_STD_VSNPRINTF/MBEDTLS_PLATFORM_VSNPRINTF_ALT cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_MEM_HDR) &&\ + !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS) +#error "MBEDTLS_PLATFORM_STD_MEM_HDR defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_CALLOC) && !defined(MBEDTLS_PLATFORM_MEMORY) +#error "MBEDTLS_PLATFORM_STD_CALLOC defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_FREE) && !defined(MBEDTLS_PLATFORM_MEMORY) +#error "MBEDTLS_PLATFORM_STD_FREE defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_EXIT) &&\ + !defined(MBEDTLS_PLATFORM_EXIT_ALT) +#error "MBEDTLS_PLATFORM_STD_EXIT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_TIME) &&\ + ( !defined(MBEDTLS_PLATFORM_TIME_ALT) ||\ + !defined(MBEDTLS_HAVE_TIME) ) +#error "MBEDTLS_PLATFORM_STD_TIME defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_FPRINTF) &&\ + !defined(MBEDTLS_PLATFORM_FPRINTF_ALT) +#error "MBEDTLS_PLATFORM_STD_FPRINTF defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_PRINTF) &&\ + !defined(MBEDTLS_PLATFORM_PRINTF_ALT) +#error "MBEDTLS_PLATFORM_STD_PRINTF defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_SNPRINTF) &&\ + !defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) +#error "MBEDTLS_PLATFORM_STD_SNPRINTF defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_ENTROPY_NV_SEED) &&\ + ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_ENTROPY_C) ) +#error "MBEDTLS_ENTROPY_NV_SEED defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_NV_SEED_ALT) &&\ + !defined(MBEDTLS_ENTROPY_NV_SEED) +#error "MBEDTLS_PLATFORM_NV_SEED_ALT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ) &&\ + !defined(MBEDTLS_PLATFORM_NV_SEED_ALT) +#error "MBEDTLS_PLATFORM_STD_NV_SEED_READ defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE) &&\ + !defined(MBEDTLS_PLATFORM_NV_SEED_ALT) +#error "MBEDTLS_PLATFORM_STD_NV_SEED_WRITE defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PLATFORM_NV_SEED_READ_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ) ||\ + defined(MBEDTLS_PLATFORM_NV_SEED_ALT) ) +#error "MBEDTLS_PLATFORM_NV_SEED_READ_MACRO and MBEDTLS_PLATFORM_STD_NV_SEED_READ cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO) &&\ + ( defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE) ||\ + defined(MBEDTLS_PLATFORM_NV_SEED_ALT) ) +#error "MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO and MBEDTLS_PLATFORM_STD_NV_SEED_WRITE cannot be defined simultaneously" +#endif + +#if defined(MBEDTLS_PSA_CRYPTO_C) && \ + !( ( ( defined(MBEDTLS_CTR_DRBG_C) || defined(MBEDTLS_HMAC_DRBG_C) ) && \ + defined(MBEDTLS_ENTROPY_C) ) || \ + defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) ) +#error "MBEDTLS_PSA_CRYPTO_C defined, but not all prerequisites (missing RNG)" +#endif + +#if defined(MBEDTLS_PSA_CRYPTO_C) && !defined(MBEDTLS_CIPHER_C ) +#error "MBEDTLS_PSA_CRYPTO_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PSA_CRYPTO_SPM) && !defined(MBEDTLS_PSA_CRYPTO_C) +#error "MBEDTLS_PSA_CRYPTO_SPM defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PSA_CRYPTO_SE_C) && \ + ! ( defined(MBEDTLS_PSA_CRYPTO_C) && \ + defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) ) +#error "MBEDTLS_PSA_CRYPTO_SE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PSA_CRYPTO_SE_C) +#if defined(MBEDTLS_DEPRECATED_REMOVED) +#error "MBEDTLS_PSA_CRYPTO_SE_C is deprecated and will be removed in a future version of Mbed TLS" +#elif defined(MBEDTLS_DEPRECATED_WARNING) +#warning "MBEDTLS_PSA_CRYPTO_SE_C is deprecated and will be removed in a future version of Mbed TLS" +#endif +#endif /* MBEDTLS_PSA_CRYPTO_SE_C */ + +#if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) && \ + ! defined(MBEDTLS_PSA_CRYPTO_C) +#error "MBEDTLS_PSA_CRYPTO_STORAGE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PSA_INJECT_ENTROPY) && \ + !( defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) && \ + defined(MBEDTLS_ENTROPY_NV_SEED) ) +#error "MBEDTLS_PSA_INJECT_ENTROPY defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_PSA_INJECT_ENTROPY) && \ + !defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES) +#error "MBEDTLS_PSA_INJECT_ENTROPY is not compatible with actual entropy sources" +#endif + +#if defined(MBEDTLS_PSA_INJECT_ENTROPY) && \ + defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) +#error "MBEDTLS_PSA_INJECT_ENTROPY is not compatible with MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG" +#endif + +#if defined(MBEDTLS_PSA_ITS_FILE_C) && \ + !defined(MBEDTLS_FS_IO) +#error "MBEDTLS_PSA_ITS_FILE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_BIGNUM_C) || \ + !defined(MBEDTLS_OID_C) ) +#error "MBEDTLS_RSA_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_PKCS1_V21) && \ + !defined(MBEDTLS_PKCS1_V15) ) +#error "MBEDTLS_RSA_C defined, but none of the PKCS1 versions enabled" +#endif + +#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) && \ + ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_PKCS1_V21) ) +#error "MBEDTLS_X509_RSASSA_PSS_SUPPORT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT) && \ + defined(MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY) +#error "Must only define one of MBEDTLS_SHA512_USE_A64_CRYPTO_*" +#endif + +#if defined(MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT) || \ + defined(MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY) +#if !defined(MBEDTLS_SHA512_C) +#error "MBEDTLS_SHA512_USE_A64_CRYPTO_* defined without MBEDTLS_SHA512_C" +#endif +#if defined(MBEDTLS_SHA512_ALT) || defined(MBEDTLS_SHA512_PROCESS_ALT) +#error "MBEDTLS_SHA512_*ALT can't be used with MBEDTLS_SHA512_USE_A64_CRYPTO_*" +#endif + +#endif /* MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT || MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY */ + +#if defined(MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY) && !defined(__aarch64__) +#error "MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY defined on non-Aarch64 system" +#endif + +#if defined(MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT) && \ + defined(MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY) +#error "Must only define one of MBEDTLS_SHA256_USE_A64_CRYPTO_*" +#endif + +#if defined(MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT) || \ + defined(MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY) +#if !defined(MBEDTLS_SHA256_C) +#error "MBEDTLS_SHA256_USE_A64_CRYPTO_* defined without MBEDTLS_SHA256_C" +#endif +#if defined(MBEDTLS_SHA256_ALT) || defined(MBEDTLS_SHA256_PROCESS_ALT) +#error "MBEDTLS_SHA256_*ALT can't be used with MBEDTLS_SHA256_USE_A64_CRYPTO_*" +#endif + +#endif + +#if defined(MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY) && \ + !defined(__aarch64__) && !defined(_M_ARM64) +#error "MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY defined on non-Aarch64 system" +#endif + +/* TLS 1.3 requires separate HKDF parts from PSA, + * and at least one ciphersuite, so at least SHA-256 or SHA-384 + * from PSA to use with HKDF. + * + * Note: for dependencies common with TLS 1.2 (running handshake hash), + * see MBEDTLS_SSL_TLS_C. */ +#if defined(MBEDTLS_SSL_PROTO_TLS1_3) && \ + !(defined(MBEDTLS_PSA_CRYPTO_C) && \ + defined(PSA_WANT_ALG_HKDF_EXTRACT) && \ + defined(PSA_WANT_ALG_HKDF_EXPAND) && \ + (defined(PSA_WANT_ALG_SHA_256) || defined(PSA_WANT_ALG_SHA_384))) +#error "MBEDTLS_SSL_PROTO_TLS1_3 defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED) +#if !( (defined(PSA_WANT_ALG_ECDH) || defined(PSA_WANT_ALG_FFDH)) && \ + defined(MBEDTLS_X509_CRT_PARSE_C) && \ + ( defined(MBEDTLS_PK_CAN_ECDSA_SIGN) || defined(MBEDTLS_PKCS1_V21) ) ) +#error "MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED defined, but not all prerequisites" +#endif +#endif + +#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED) +#if !( defined(PSA_WANT_ALG_ECDH) || defined(PSA_WANT_ALG_FFDH) ) +#error "MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED defined, but not all prerequisites" +#endif +#endif + +/* + * The current implementation of TLS 1.3 requires MBEDTLS_SSL_KEEP_PEER_CERTIFICATE. + */ +#if defined(MBEDTLS_SSL_PROTO_TLS1_3) && !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) +#error "MBEDTLS_SSL_PROTO_TLS1_3 defined without MBEDTLS_SSL_KEEP_PEER_CERTIFICATE" +#endif + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ + !(defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) ) +#error "One or more versions of the TLS protocol are enabled " \ + "but no key exchange methods defined with MBEDTLS_KEY_EXCHANGE_xxxx" +#endif + +#if defined(MBEDTLS_SSL_EARLY_DATA) && \ + ( !defined(MBEDTLS_SSL_SESSION_TICKETS) || \ + ( !defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED) && \ + !defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED) ) ) +#error "MBEDTLS_SSL_EARLY_DATA defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_SRV_C) && \ + defined(MBEDTLS_SSL_MAX_EARLY_DATA_SIZE) && \ + ((MBEDTLS_SSL_MAX_EARLY_DATA_SIZE < 0) || \ + (MBEDTLS_SSL_MAX_EARLY_DATA_SIZE > UINT32_MAX)) +#error "MBEDTLS_SSL_MAX_EARLY_DATA_SIZE must be in the range(0..UINT32_MAX)" +#endif + +#if defined(MBEDTLS_SSL_PROTO_DTLS) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1_2) +#error "MBEDTLS_SSL_PROTO_DTLS defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_CLI_C) && !defined(MBEDTLS_SSL_TLS_C) +#error "MBEDTLS_SSL_CLI_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) && !defined(MBEDTLS_X509_CRT_PARSE_C) +#error "MBEDTLS_SSL_ASYNC_PRIVATE defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_TLS_C) && !defined(MBEDTLS_CIPHER_C) +#error "MBEDTLS_SSL_TLS_C defined, but not all prerequisites" +#endif + +/* TLS 1.2 and 1.3 require SHA-256 or SHA-384 (running handshake hash) */ +#if defined(MBEDTLS_SSL_TLS_C) +#if defined(MBEDTLS_USE_PSA_CRYPTO) +#if !(defined(PSA_WANT_ALG_SHA_256) || defined(PSA_WANT_ALG_SHA_384)) +#error "MBEDTLS_SSL_TLS_C defined, but not all prerequisites" +#endif +#else /* MBEDTLS_USE_PSA_CRYPTO */ +#if !defined(MBEDTLS_MD_C) || \ + !(defined(MBEDTLS_MD_HAVE_SHA256) || defined(MBEDTLS_MD_HAVE_SHA384)) +#error "MBEDTLS_SSL_TLS_C defined, but not all prerequisites" +#endif +#endif /* MBEDTLS_USE_PSA_CRYPTO */ +#endif /* MBEDTLS_SSL_TLS_C */ + +#if defined(MBEDTLS_SSL_SRV_C) && !defined(MBEDTLS_SSL_TLS_C) +#error "MBEDTLS_SSL_SRV_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_TLS_C) && \ + !( defined(MBEDTLS_SSL_PROTO_TLS1_2) || defined(MBEDTLS_SSL_PROTO_TLS1_3) ) +#error "MBEDTLS_SSL_TLS_C defined, but no protocols are active" +#endif + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && !defined(MBEDTLS_SSL_PROTO_DTLS) +#error "MBEDTLS_SSL_DTLS_HELLO_VERIFY defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && \ + !defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) +#error "MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) && \ + ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) ) +#error "MBEDTLS_SSL_DTLS_ANTI_REPLAY defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) && \ + ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) ) +#error "MBEDTLS_SSL_DTLS_CONNECTION_ID defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) && \ + defined(MBEDTLS_SSL_CID_IN_LEN_MAX) && \ + MBEDTLS_SSL_CID_IN_LEN_MAX > 255 +#error "MBEDTLS_SSL_CID_IN_LEN_MAX too large (max 255)" +#endif + +#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) && \ + defined(MBEDTLS_SSL_CID_OUT_LEN_MAX) && \ + MBEDTLS_SSL_CID_OUT_LEN_MAX > 255 +#error "MBEDTLS_SSL_CID_OUT_LEN_MAX too large (max 255)" +#endif + +#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT) && \ + !defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) +#error "MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT) && MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT != 0 +#if defined(MBEDTLS_DEPRECATED_REMOVED) +#error "MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT is deprecated and will be removed in a future version of Mbed TLS" +#elif defined(MBEDTLS_DEPRECATED_WARNING) +#warning "MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT is deprecated and will be removed in a future version of Mbed TLS" +#endif +#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT && MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT != 0 */ + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1_2) +#error "MBEDTLS_SSL_ENCRYPT_THEN_MAC defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1_2) +#error "MBEDTLS_SSL_EXTENDED_MASTER_SECRET defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_RENEGOTIATION) && \ + !defined(MBEDTLS_SSL_PROTO_TLS1_2) +#error "MBEDTLS_SSL_RENEGOTIATION defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_TICKET_C) && ( !defined(MBEDTLS_CIPHER_C) && \ + !defined(MBEDTLS_USE_PSA_CRYPTO) ) +#error "MBEDTLS_SSL_TICKET_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_TICKET_C) && \ + !( defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CCM_C) || defined(MBEDTLS_CHACHAPOLY_C) ) +#error "MBEDTLS_SSL_TICKET_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_TLS1_3_TICKET_NONCE_LENGTH) && \ + MBEDTLS_SSL_TLS1_3_TICKET_NONCE_LENGTH >= 256 +#error "MBEDTLS_SSL_TLS1_3_TICKET_NONCE_LENGTH must be less than 256" +#endif + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) && \ + !defined(MBEDTLS_X509_CRT_PARSE_C) +#error "MBEDTLS_SSL_SERVER_NAME_INDICATION defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_THREADING_PTHREAD) +#if !defined(MBEDTLS_THREADING_C) || defined(MBEDTLS_THREADING_IMPL) +#error "MBEDTLS_THREADING_PTHREAD defined, but not all prerequisites" +#endif +#define MBEDTLS_THREADING_IMPL +#endif + +#if defined(MBEDTLS_THREADING_ALT) +#if !defined(MBEDTLS_THREADING_C) || defined(MBEDTLS_THREADING_IMPL) +#error "MBEDTLS_THREADING_ALT defined, but not all prerequisites" +#endif +#define MBEDTLS_THREADING_IMPL +#endif + +#if defined(MBEDTLS_THREADING_C) && !defined(MBEDTLS_THREADING_IMPL) +#error "MBEDTLS_THREADING_C defined, single threading implementation required" +#endif +#undef MBEDTLS_THREADING_IMPL + +#if defined(MBEDTLS_USE_PSA_CRYPTO) && !defined(MBEDTLS_PSA_CRYPTO_C) +#error "MBEDTLS_USE_PSA_CRYPTO defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_VERSION_FEATURES) && !defined(MBEDTLS_VERSION_C) +#error "MBEDTLS_VERSION_FEATURES defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_USE_C) && \ + (!defined(MBEDTLS_OID_C) || !defined(MBEDTLS_ASN1_PARSE_C) || \ + !defined(MBEDTLS_PK_PARSE_C) || \ + ( !defined(MBEDTLS_MD_C) && !defined(MBEDTLS_USE_PSA_CRYPTO) ) ) +#error "MBEDTLS_X509_USE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_CREATE_C) && \ + (!defined(MBEDTLS_OID_C) || !defined(MBEDTLS_ASN1_WRITE_C) || \ + !defined(MBEDTLS_PK_PARSE_C) || \ + ( !defined(MBEDTLS_MD_C) && !defined(MBEDTLS_USE_PSA_CRYPTO) ) ) +#error "MBEDTLS_X509_CREATE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) ) +#error "MBEDTLS_X509_CRT_PARSE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_CRL_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) ) +#error "MBEDTLS_X509_CRL_PARSE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_CSR_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) ) +#error "MBEDTLS_X509_CSR_PARSE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_CRT_WRITE_C) && ( !defined(MBEDTLS_X509_CREATE_C) ) +#error "MBEDTLS_X509_CRT_WRITE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_CSR_WRITE_C) && ( !defined(MBEDTLS_X509_CREATE_C) ) +#error "MBEDTLS_X509_CSR_WRITE_C defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) && \ + ( !defined(MBEDTLS_X509_CRT_PARSE_C) ) +#error "MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_HAVE_INT32) && defined(MBEDTLS_HAVE_INT64) +#error "MBEDTLS_HAVE_INT32 and MBEDTLS_HAVE_INT64 cannot be defined simultaneously" +#endif /* MBEDTLS_HAVE_INT32 && MBEDTLS_HAVE_INT64 */ + +#if ( defined(MBEDTLS_HAVE_INT32) || defined(MBEDTLS_HAVE_INT64) ) && \ + defined(MBEDTLS_HAVE_ASM) +#error "MBEDTLS_HAVE_INT32/MBEDTLS_HAVE_INT64 and MBEDTLS_HAVE_ASM cannot be defined simultaneously" +#endif /* (MBEDTLS_HAVE_INT32 || MBEDTLS_HAVE_INT64) && MBEDTLS_HAVE_ASM */ + +#if defined(MBEDTLS_SSL_DTLS_SRTP) && ( !defined(MBEDTLS_SSL_PROTO_DTLS) ) +#error "MBEDTLS_SSL_DTLS_SRTP defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) && ( !defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) ) +#error "MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT) && ( !defined(MBEDTLS_SSL_PROTO_TLS1_3) ) +#error "MBEDTLS_SSL_RECORD_SIZE_LIMIT defined, but not all prerequisites" +#endif + +#if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION) && !( defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CCM_C) || defined(MBEDTLS_CHACHAPOLY_C) ) +#error "MBEDTLS_SSL_CONTEXT_SERIALIZATION defined, but not all prerequisites" +#endif + +/* Reject attempts to enable options that have been removed and that could + * cause a build to succeed but with features removed. */ + +#if defined(MBEDTLS_HAVEGE_C) //no-check-names +#error "MBEDTLS_HAVEGE_C was removed in Mbed TLS 3.0. See https://github.com/Mbed-TLS/mbedtls/issues/2599" +#endif + +#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) //no-check-names +#error "MBEDTLS_SSL_HW_RECORD_ACCEL was removed in Mbed TLS 3.0. See https://github.com/Mbed-TLS/mbedtls/issues/4031" +#endif + +#if defined(MBEDTLS_SSL_PROTO_SSL3) //no-check-names +#error "MBEDTLS_SSL_PROTO_SSL3 (SSL v3.0 support) was removed in Mbed TLS 3.0. See https://github.com/Mbed-TLS/mbedtls/issues/4031" +#endif + +#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO) //no-check-names +#error "MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO (SSL v2 ClientHello support) was removed in Mbed TLS 3.0. See https://github.com/Mbed-TLS/mbedtls/issues/4031" +#endif + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT) //no-check-names +#error "MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT (compatibility with the buggy implementation of truncated HMAC in Mbed TLS up to 2.7) was removed in Mbed TLS 3.0. See https://github.com/Mbed-TLS/mbedtls/issues/4031" +#endif + +#if defined(MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES) //no-check-names +#error "MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES was removed in Mbed TLS 3.0. See the ChangeLog entry if you really need SHA-1-signed certificates." +#endif + +#if defined(MBEDTLS_ZLIB_SUPPORT) //no-check-names +#error "MBEDTLS_ZLIB_SUPPORT was removed in Mbed TLS 3.0. See https://github.com/Mbed-TLS/mbedtls/issues/4031" +#endif + +#if defined(MBEDTLS_CHECK_PARAMS) //no-check-names +#error "MBEDTLS_CHECK_PARAMS was removed in Mbed TLS 3.0. See https://github.com/Mbed-TLS/mbedtls/issues/4313" +#endif + +#if defined(MBEDTLS_SSL_CID_PADDING_GRANULARITY) //no-check-names +#error "MBEDTLS_SSL_CID_PADDING_GRANULARITY was removed in Mbed TLS 3.0. See https://github.com/Mbed-TLS/mbedtls/issues/4335" +#endif + +#if defined(MBEDTLS_SSL_TLS1_3_PADDING_GRANULARITY) //no-check-names +#error "MBEDTLS_SSL_TLS1_3_PADDING_GRANULARITY was removed in Mbed TLS 3.0. See https://github.com/Mbed-TLS/mbedtls/issues/4335" +#endif + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) //no-check-names +#error "MBEDTLS_SSL_TRUNCATED_HMAC was removed in Mbed TLS 3.0. See https://github.com/Mbed-TLS/mbedtls/issues/4341" +#endif + +#if defined(MBEDTLS_PKCS7_C) && ( ( !defined(MBEDTLS_ASN1_PARSE_C) ) || \ + ( !defined(MBEDTLS_OID_C) ) || ( !defined(MBEDTLS_PK_PARSE_C) ) || \ + ( !defined(MBEDTLS_X509_CRT_PARSE_C) ) || \ + ( !defined(MBEDTLS_X509_CRL_PARSE_C) ) || \ + ( !defined(MBEDTLS_MD_C) ) ) +#error "MBEDTLS_PKCS7_C is defined, but not all prerequisites" +#endif + +/* Undefine helper symbols */ +#undef MBEDTLS_PK_HAVE_JPAKE +#undef MBEDTLS_MD_HAVE_SHA256 +#undef MBEDTLS_MD_HAVE_SHA384 +#undef MBEDTLS_MD_HAVE_SHA512 +#undef MBEDTLS_PK_HAVE_CURVE_SECP256R1 + +/* + * Avoid warning from -pedantic. This is a convenient place for this + * workaround since this is included by every single file before the + * #if defined(MBEDTLS_xxx_C) that results in empty translation units. + */ +typedef int mbedtls_iso_c_forbids_empty_translation_units; + +/* *INDENT-ON* */ +#endif /* MBEDTLS_CHECK_CONFIG_H */ diff --git a/include/mbedtls/cipher.h b/include/mbedtls/cipher.h new file mode 100644 index 0000000..2596baa --- /dev/null +++ b/include/mbedtls/cipher.h @@ -0,0 +1,1183 @@ +/** + * \file cipher.h + * + * \brief This file contains an abstraction interface for use with the cipher + * primitives provided by the library. It provides a common interface to all of + * the available cipher operations. + * + * \author Adriaan de Jong <dejong@fox-it.com> + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CIPHER_H +#define MBEDTLS_CIPHER_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stddef.h> +#include "mbedtls/platform_util.h" + +#if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CCM_C) || defined(MBEDTLS_CHACHAPOLY_C) +#define MBEDTLS_CIPHER_MODE_AEAD +#endif + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#define MBEDTLS_CIPHER_MODE_WITH_PADDING +#endif + +#if defined(MBEDTLS_CIPHER_NULL_CIPHER) || \ + defined(MBEDTLS_CHACHA20_C) +#define MBEDTLS_CIPHER_MODE_STREAM +#endif + +/** The selected feature is not available. */ +#define MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE -0x6080 +/** Bad input parameters. */ +#define MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA -0x6100 +/** Failed to allocate memory. */ +#define MBEDTLS_ERR_CIPHER_ALLOC_FAILED -0x6180 +/** Input data contains invalid padding and is rejected. */ +#define MBEDTLS_ERR_CIPHER_INVALID_PADDING -0x6200 +/** Decryption of block requires a full block. */ +#define MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED -0x6280 +/** Authentication failed (for AEAD modes). */ +#define MBEDTLS_ERR_CIPHER_AUTH_FAILED -0x6300 +/** The context is invalid. For example, because it was freed. */ +#define MBEDTLS_ERR_CIPHER_INVALID_CONTEXT -0x6380 + +#define MBEDTLS_CIPHER_VARIABLE_IV_LEN 0x01 /**< Cipher accepts IVs of variable length. */ +#define MBEDTLS_CIPHER_VARIABLE_KEY_LEN 0x02 /**< Cipher accepts keys of variable length. */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Supported cipher types. + * + * \warning DES/3DES are considered weak ciphers and their use + * constitutes a security risk. We recommend considering stronger + * ciphers instead. + */ +typedef enum { + MBEDTLS_CIPHER_ID_NONE = 0, /**< Placeholder to mark the end of cipher ID lists. */ + MBEDTLS_CIPHER_ID_NULL, /**< The identity cipher, treated as a stream cipher. */ + MBEDTLS_CIPHER_ID_AES, /**< The AES cipher. */ + MBEDTLS_CIPHER_ID_DES, /**< The DES cipher. \warning DES is considered weak. */ + MBEDTLS_CIPHER_ID_3DES, /**< The Triple DES cipher. \warning 3DES is considered weak. */ + MBEDTLS_CIPHER_ID_CAMELLIA, /**< The Camellia cipher. */ + MBEDTLS_CIPHER_ID_ARIA, /**< The Aria cipher. */ + MBEDTLS_CIPHER_ID_CHACHA20, /**< The ChaCha20 cipher. */ +} mbedtls_cipher_id_t; + +/** + * \brief Supported {cipher type, cipher mode} pairs. + * + * \warning DES/3DES are considered weak ciphers and their use + * constitutes a security risk. We recommend considering stronger + * ciphers instead. + */ +typedef enum { + MBEDTLS_CIPHER_NONE = 0, /**< Placeholder to mark the end of cipher-pair lists. */ + MBEDTLS_CIPHER_NULL, /**< The identity stream cipher. */ + MBEDTLS_CIPHER_AES_128_ECB, /**< AES cipher with 128-bit ECB mode. */ + MBEDTLS_CIPHER_AES_192_ECB, /**< AES cipher with 192-bit ECB mode. */ + MBEDTLS_CIPHER_AES_256_ECB, /**< AES cipher with 256-bit ECB mode. */ + MBEDTLS_CIPHER_AES_128_CBC, /**< AES cipher with 128-bit CBC mode. */ + MBEDTLS_CIPHER_AES_192_CBC, /**< AES cipher with 192-bit CBC mode. */ + MBEDTLS_CIPHER_AES_256_CBC, /**< AES cipher with 256-bit CBC mode. */ + MBEDTLS_CIPHER_AES_128_CFB128, /**< AES cipher with 128-bit CFB128 mode. */ + MBEDTLS_CIPHER_AES_192_CFB128, /**< AES cipher with 192-bit CFB128 mode. */ + MBEDTLS_CIPHER_AES_256_CFB128, /**< AES cipher with 256-bit CFB128 mode. */ + MBEDTLS_CIPHER_AES_128_CTR, /**< AES cipher with 128-bit CTR mode. */ + MBEDTLS_CIPHER_AES_192_CTR, /**< AES cipher with 192-bit CTR mode. */ + MBEDTLS_CIPHER_AES_256_CTR, /**< AES cipher with 256-bit CTR mode. */ + MBEDTLS_CIPHER_AES_128_GCM, /**< AES cipher with 128-bit GCM mode. */ + MBEDTLS_CIPHER_AES_192_GCM, /**< AES cipher with 192-bit GCM mode. */ + MBEDTLS_CIPHER_AES_256_GCM, /**< AES cipher with 256-bit GCM mode. */ + MBEDTLS_CIPHER_CAMELLIA_128_ECB, /**< Camellia cipher with 128-bit ECB mode. */ + MBEDTLS_CIPHER_CAMELLIA_192_ECB, /**< Camellia cipher with 192-bit ECB mode. */ + MBEDTLS_CIPHER_CAMELLIA_256_ECB, /**< Camellia cipher with 256-bit ECB mode. */ + MBEDTLS_CIPHER_CAMELLIA_128_CBC, /**< Camellia cipher with 128-bit CBC mode. */ + MBEDTLS_CIPHER_CAMELLIA_192_CBC, /**< Camellia cipher with 192-bit CBC mode. */ + MBEDTLS_CIPHER_CAMELLIA_256_CBC, /**< Camellia cipher with 256-bit CBC mode. */ + MBEDTLS_CIPHER_CAMELLIA_128_CFB128, /**< Camellia cipher with 128-bit CFB128 mode. */ + MBEDTLS_CIPHER_CAMELLIA_192_CFB128, /**< Camellia cipher with 192-bit CFB128 mode. */ + MBEDTLS_CIPHER_CAMELLIA_256_CFB128, /**< Camellia cipher with 256-bit CFB128 mode. */ + MBEDTLS_CIPHER_CAMELLIA_128_CTR, /**< Camellia cipher with 128-bit CTR mode. */ + MBEDTLS_CIPHER_CAMELLIA_192_CTR, /**< Camellia cipher with 192-bit CTR mode. */ + MBEDTLS_CIPHER_CAMELLIA_256_CTR, /**< Camellia cipher with 256-bit CTR mode. */ + MBEDTLS_CIPHER_CAMELLIA_128_GCM, /**< Camellia cipher with 128-bit GCM mode. */ + MBEDTLS_CIPHER_CAMELLIA_192_GCM, /**< Camellia cipher with 192-bit GCM mode. */ + MBEDTLS_CIPHER_CAMELLIA_256_GCM, /**< Camellia cipher with 256-bit GCM mode. */ + MBEDTLS_CIPHER_DES_ECB, /**< DES cipher with ECB mode. \warning DES is considered weak. */ + MBEDTLS_CIPHER_DES_CBC, /**< DES cipher with CBC mode. \warning DES is considered weak. */ + MBEDTLS_CIPHER_DES_EDE_ECB, /**< DES cipher with EDE ECB mode. \warning 3DES is considered weak. */ + MBEDTLS_CIPHER_DES_EDE_CBC, /**< DES cipher with EDE CBC mode. \warning 3DES is considered weak. */ + MBEDTLS_CIPHER_DES_EDE3_ECB, /**< DES cipher with EDE3 ECB mode. \warning 3DES is considered weak. */ + MBEDTLS_CIPHER_DES_EDE3_CBC, /**< DES cipher with EDE3 CBC mode. \warning 3DES is considered weak. */ + MBEDTLS_CIPHER_AES_128_CCM, /**< AES cipher with 128-bit CCM mode. */ + MBEDTLS_CIPHER_AES_192_CCM, /**< AES cipher with 192-bit CCM mode. */ + MBEDTLS_CIPHER_AES_256_CCM, /**< AES cipher with 256-bit CCM mode. */ + MBEDTLS_CIPHER_AES_128_CCM_STAR_NO_TAG, /**< AES cipher with 128-bit CCM_STAR_NO_TAG mode. */ + MBEDTLS_CIPHER_AES_192_CCM_STAR_NO_TAG, /**< AES cipher with 192-bit CCM_STAR_NO_TAG mode. */ + MBEDTLS_CIPHER_AES_256_CCM_STAR_NO_TAG, /**< AES cipher with 256-bit CCM_STAR_NO_TAG mode. */ + MBEDTLS_CIPHER_CAMELLIA_128_CCM, /**< Camellia cipher with 128-bit CCM mode. */ + MBEDTLS_CIPHER_CAMELLIA_192_CCM, /**< Camellia cipher with 192-bit CCM mode. */ + MBEDTLS_CIPHER_CAMELLIA_256_CCM, /**< Camellia cipher with 256-bit CCM mode. */ + MBEDTLS_CIPHER_CAMELLIA_128_CCM_STAR_NO_TAG, /**< Camellia cipher with 128-bit CCM_STAR_NO_TAG mode. */ + MBEDTLS_CIPHER_CAMELLIA_192_CCM_STAR_NO_TAG, /**< Camellia cipher with 192-bit CCM_STAR_NO_TAG mode. */ + MBEDTLS_CIPHER_CAMELLIA_256_CCM_STAR_NO_TAG, /**< Camellia cipher with 256-bit CCM_STAR_NO_TAG mode. */ + MBEDTLS_CIPHER_ARIA_128_ECB, /**< Aria cipher with 128-bit key and ECB mode. */ + MBEDTLS_CIPHER_ARIA_192_ECB, /**< Aria cipher with 192-bit key and ECB mode. */ + MBEDTLS_CIPHER_ARIA_256_ECB, /**< Aria cipher with 256-bit key and ECB mode. */ + MBEDTLS_CIPHER_ARIA_128_CBC, /**< Aria cipher with 128-bit key and CBC mode. */ + MBEDTLS_CIPHER_ARIA_192_CBC, /**< Aria cipher with 192-bit key and CBC mode. */ + MBEDTLS_CIPHER_ARIA_256_CBC, /**< Aria cipher with 256-bit key and CBC mode. */ + MBEDTLS_CIPHER_ARIA_128_CFB128, /**< Aria cipher with 128-bit key and CFB-128 mode. */ + MBEDTLS_CIPHER_ARIA_192_CFB128, /**< Aria cipher with 192-bit key and CFB-128 mode. */ + MBEDTLS_CIPHER_ARIA_256_CFB128, /**< Aria cipher with 256-bit key and CFB-128 mode. */ + MBEDTLS_CIPHER_ARIA_128_CTR, /**< Aria cipher with 128-bit key and CTR mode. */ + MBEDTLS_CIPHER_ARIA_192_CTR, /**< Aria cipher with 192-bit key and CTR mode. */ + MBEDTLS_CIPHER_ARIA_256_CTR, /**< Aria cipher with 256-bit key and CTR mode. */ + MBEDTLS_CIPHER_ARIA_128_GCM, /**< Aria cipher with 128-bit key and GCM mode. */ + MBEDTLS_CIPHER_ARIA_192_GCM, /**< Aria cipher with 192-bit key and GCM mode. */ + MBEDTLS_CIPHER_ARIA_256_GCM, /**< Aria cipher with 256-bit key and GCM mode. */ + MBEDTLS_CIPHER_ARIA_128_CCM, /**< Aria cipher with 128-bit key and CCM mode. */ + MBEDTLS_CIPHER_ARIA_192_CCM, /**< Aria cipher with 192-bit key and CCM mode. */ + MBEDTLS_CIPHER_ARIA_256_CCM, /**< Aria cipher with 256-bit key and CCM mode. */ + MBEDTLS_CIPHER_ARIA_128_CCM_STAR_NO_TAG, /**< Aria cipher with 128-bit key and CCM_STAR_NO_TAG mode. */ + MBEDTLS_CIPHER_ARIA_192_CCM_STAR_NO_TAG, /**< Aria cipher with 192-bit key and CCM_STAR_NO_TAG mode. */ + MBEDTLS_CIPHER_ARIA_256_CCM_STAR_NO_TAG, /**< Aria cipher with 256-bit key and CCM_STAR_NO_TAG mode. */ + MBEDTLS_CIPHER_AES_128_OFB, /**< AES 128-bit cipher in OFB mode. */ + MBEDTLS_CIPHER_AES_192_OFB, /**< AES 192-bit cipher in OFB mode. */ + MBEDTLS_CIPHER_AES_256_OFB, /**< AES 256-bit cipher in OFB mode. */ + MBEDTLS_CIPHER_AES_128_XTS, /**< AES 128-bit cipher in XTS block mode. */ + MBEDTLS_CIPHER_AES_256_XTS, /**< AES 256-bit cipher in XTS block mode. */ + MBEDTLS_CIPHER_CHACHA20, /**< ChaCha20 stream cipher. */ + MBEDTLS_CIPHER_CHACHA20_POLY1305, /**< ChaCha20-Poly1305 AEAD cipher. */ + MBEDTLS_CIPHER_AES_128_KW, /**< AES cipher with 128-bit NIST KW mode. */ + MBEDTLS_CIPHER_AES_192_KW, /**< AES cipher with 192-bit NIST KW mode. */ + MBEDTLS_CIPHER_AES_256_KW, /**< AES cipher with 256-bit NIST KW mode. */ + MBEDTLS_CIPHER_AES_128_KWP, /**< AES cipher with 128-bit NIST KWP mode. */ + MBEDTLS_CIPHER_AES_192_KWP, /**< AES cipher with 192-bit NIST KWP mode. */ + MBEDTLS_CIPHER_AES_256_KWP, /**< AES cipher with 256-bit NIST KWP mode. */ +} mbedtls_cipher_type_t; + +/** Supported cipher modes. */ +typedef enum { + MBEDTLS_MODE_NONE = 0, /**< None. */ + MBEDTLS_MODE_ECB, /**< The ECB cipher mode. */ + MBEDTLS_MODE_CBC, /**< The CBC cipher mode. */ + MBEDTLS_MODE_CFB, /**< The CFB cipher mode. */ + MBEDTLS_MODE_OFB, /**< The OFB cipher mode. */ + MBEDTLS_MODE_CTR, /**< The CTR cipher mode. */ + MBEDTLS_MODE_GCM, /**< The GCM cipher mode. */ + MBEDTLS_MODE_STREAM, /**< The stream cipher mode. */ + MBEDTLS_MODE_CCM, /**< The CCM cipher mode. */ + MBEDTLS_MODE_CCM_STAR_NO_TAG, /**< The CCM*-no-tag cipher mode. */ + MBEDTLS_MODE_XTS, /**< The XTS cipher mode. */ + MBEDTLS_MODE_CHACHAPOLY, /**< The ChaCha-Poly cipher mode. */ + MBEDTLS_MODE_KW, /**< The SP800-38F KW mode */ + MBEDTLS_MODE_KWP, /**< The SP800-38F KWP mode */ +} mbedtls_cipher_mode_t; + +/** Supported cipher padding types. */ +typedef enum { + MBEDTLS_PADDING_PKCS7 = 0, /**< PKCS7 padding (default). */ + MBEDTLS_PADDING_ONE_AND_ZEROS, /**< ISO/IEC 7816-4 padding. */ + MBEDTLS_PADDING_ZEROS_AND_LEN, /**< ANSI X.923 padding. */ + MBEDTLS_PADDING_ZEROS, /**< Zero padding (not reversible). */ + MBEDTLS_PADDING_NONE, /**< Never pad (full blocks only). */ +} mbedtls_cipher_padding_t; + +/** Type of operation. */ +typedef enum { + MBEDTLS_OPERATION_NONE = -1, + MBEDTLS_DECRYPT = 0, + MBEDTLS_ENCRYPT, +} mbedtls_operation_t; + +enum { + /** Undefined key length. */ + MBEDTLS_KEY_LENGTH_NONE = 0, + /** Key length, in bits (including parity), for DES keys. \warning DES is considered weak. */ + MBEDTLS_KEY_LENGTH_DES = 64, + /** Key length in bits, including parity, for DES in two-key EDE. \warning 3DES is considered weak. */ + MBEDTLS_KEY_LENGTH_DES_EDE = 128, + /** Key length in bits, including parity, for DES in three-key EDE. \warning 3DES is considered weak. */ + MBEDTLS_KEY_LENGTH_DES_EDE3 = 192, +}; + +/** Maximum length of any IV, in Bytes. */ +/* This should ideally be derived automatically from list of ciphers. + * This should be kept in sync with MBEDTLS_SSL_MAX_IV_LENGTH defined + * in library/ssl_misc.h. */ +#define MBEDTLS_MAX_IV_LENGTH 16 + +/** Maximum block size of any cipher, in Bytes. */ +/* This should ideally be derived automatically from list of ciphers. + * This should be kept in sync with MBEDTLS_SSL_MAX_BLOCK_LENGTH defined + * in library/ssl_misc.h. */ +#define MBEDTLS_MAX_BLOCK_LENGTH 16 + +/** Maximum key length, in Bytes. */ +/* This should ideally be derived automatically from list of ciphers. + * For now, only check whether XTS is enabled which uses 64 Byte keys, + * and use 32 Bytes as an upper bound for the maximum key length otherwise. + * This should be kept in sync with MBEDTLS_SSL_MAX_BLOCK_LENGTH defined + * in library/ssl_misc.h, which however deliberately ignores the case of XTS + * since the latter isn't used in SSL/TLS. */ +#if defined(MBEDTLS_CIPHER_MODE_XTS) +#define MBEDTLS_MAX_KEY_LENGTH 64 +#else +#define MBEDTLS_MAX_KEY_LENGTH 32 +#endif /* MBEDTLS_CIPHER_MODE_XTS */ + +/** + * Base cipher information (opaque struct). + */ +typedef struct mbedtls_cipher_base_t mbedtls_cipher_base_t; + +/** + * CMAC context (opaque struct). + */ +typedef struct mbedtls_cmac_context_t mbedtls_cmac_context_t; + +/** + * Cipher information. Allows calling cipher functions + * in a generic way. + * + * \note The library does not support custom cipher info structures, + * only built-in structures returned by the functions + * mbedtls_cipher_info_from_string(), + * mbedtls_cipher_info_from_type(), + * mbedtls_cipher_info_from_values(), + * mbedtls_cipher_info_from_psa(). + * + * \note Some fields store a value that has been right-shifted to save + * code-size, so should not be used directly. The accessor + * functions adjust for this and return the "natural" value. + */ +typedef struct mbedtls_cipher_info_t { + /** Name of the cipher. */ + const char *MBEDTLS_PRIVATE(name); + + /** The block size, in bytes. */ + unsigned int MBEDTLS_PRIVATE(block_size) : 5; + + /** IV or nonce size, in bytes (right shifted by #MBEDTLS_IV_SIZE_SHIFT). + * For ciphers that accept variable IV sizes, + * this is the recommended size. + */ + unsigned int MBEDTLS_PRIVATE(iv_size) : 3; + + /** The cipher key length, in bits (right shifted by #MBEDTLS_KEY_BITLEN_SHIFT). + * This is the default length for variable sized ciphers. + * Includes parity bits for ciphers like DES. + */ + unsigned int MBEDTLS_PRIVATE(key_bitlen) : 4; + + /** The cipher mode (as per mbedtls_cipher_mode_t). + * For example, MBEDTLS_MODE_CBC. + */ + unsigned int MBEDTLS_PRIVATE(mode) : 4; + + /** Full cipher identifier (as per mbedtls_cipher_type_t). + * For example, MBEDTLS_CIPHER_AES_256_CBC. + * + * This could be 7 bits, but 8 bits retains byte alignment for the + * next field, which reduces code size to access that field. + */ + unsigned int MBEDTLS_PRIVATE(type) : 8; + + /** Bitflag comprised of MBEDTLS_CIPHER_VARIABLE_IV_LEN and + * MBEDTLS_CIPHER_VARIABLE_KEY_LEN indicating whether the + * cipher supports variable IV or variable key sizes, respectively. + */ + unsigned int MBEDTLS_PRIVATE(flags) : 2; + + /** Index to LUT for base cipher information and functions. */ + unsigned int MBEDTLS_PRIVATE(base_idx) : 5; + +} mbedtls_cipher_info_t; + +/* For internal use only. + * These are used to more compactly represent the fields above. */ +#define MBEDTLS_KEY_BITLEN_SHIFT 6 +#define MBEDTLS_IV_SIZE_SHIFT 2 +/** + * Generic cipher context. + */ +typedef struct mbedtls_cipher_context_t { + /** Information about the associated cipher. */ + const mbedtls_cipher_info_t *MBEDTLS_PRIVATE(cipher_info); + + /** Key length to use. */ + int MBEDTLS_PRIVATE(key_bitlen); + + /** Operation that the key of the context has been + * initialized for. + */ + mbedtls_operation_t MBEDTLS_PRIVATE(operation); + +#if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) + /** Padding functions to use, if relevant for + * the specific cipher mode. + */ + void(*MBEDTLS_PRIVATE(add_padding))(unsigned char *output, size_t olen, size_t data_len); + int(*MBEDTLS_PRIVATE(get_padding))(unsigned char *input, size_t ilen, size_t *data_len); +#endif + + /** Buffer for input that has not been processed yet. */ + unsigned char MBEDTLS_PRIVATE(unprocessed_data)[MBEDTLS_MAX_BLOCK_LENGTH]; + + /** Number of Bytes that have not been processed yet. */ + size_t MBEDTLS_PRIVATE(unprocessed_len); + + /** Current IV or NONCE_COUNTER for CTR-mode, data unit (or sector) number + * for XTS-mode. */ + unsigned char MBEDTLS_PRIVATE(iv)[MBEDTLS_MAX_IV_LENGTH]; + + /** IV size in Bytes, for ciphers with variable-length IVs. */ + size_t MBEDTLS_PRIVATE(iv_size); + + /** The cipher-specific context. */ + void *MBEDTLS_PRIVATE(cipher_ctx); + +#if defined(MBEDTLS_CMAC_C) + /** CMAC-specific context. */ + mbedtls_cmac_context_t *MBEDTLS_PRIVATE(cmac_ctx); +#endif + +#if defined(MBEDTLS_USE_PSA_CRYPTO) && !defined(MBEDTLS_DEPRECATED_REMOVED) + /** Indicates whether the cipher operations should be performed + * by Mbed TLS' own crypto library or an external implementation + * of the PSA Crypto API. + * This is unset if the cipher context was established through + * mbedtls_cipher_setup(), and set if it was established through + * mbedtls_cipher_setup_psa(). + */ + unsigned char MBEDTLS_PRIVATE(psa_enabled); +#endif /* MBEDTLS_USE_PSA_CRYPTO && !MBEDTLS_DEPRECATED_REMOVED */ + +} mbedtls_cipher_context_t; + +/** + * \brief This function retrieves the list of ciphers supported + * by the generic cipher module. + * + * For any cipher identifier in the returned list, you can + * obtain the corresponding generic cipher information structure + * via mbedtls_cipher_info_from_type(), which can then be used + * to prepare a cipher context via mbedtls_cipher_setup(). + * + * + * \return A statically-allocated array of cipher identifiers + * of type cipher_type_t. The last entry is zero. + */ +const int *mbedtls_cipher_list(void); + +/** + * \brief This function retrieves the cipher-information + * structure associated with the given cipher name. + * + * \param cipher_name Name of the cipher to search for. This must not be + * \c NULL. + * + * \return The cipher information structure associated with the + * given \p cipher_name. + * \return \c NULL if the associated cipher information is not found. + */ +const mbedtls_cipher_info_t *mbedtls_cipher_info_from_string(const char *cipher_name); + +/** + * \brief This function retrieves the cipher-information + * structure associated with the given cipher type. + * + * \param cipher_type Type of the cipher to search for. + * + * \return The cipher information structure associated with the + * given \p cipher_type. + * \return \c NULL if the associated cipher information is not found. + */ +const mbedtls_cipher_info_t *mbedtls_cipher_info_from_type(const mbedtls_cipher_type_t cipher_type); + +/** + * \brief This function retrieves the cipher-information + * structure associated with the given cipher ID, + * key size and mode. + * + * \param cipher_id The ID of the cipher to search for. For example, + * #MBEDTLS_CIPHER_ID_AES. + * \param key_bitlen The length of the key in bits. + * \param mode The cipher mode. For example, #MBEDTLS_MODE_CBC. + * + * \return The cipher information structure associated with the + * given \p cipher_id. + * \return \c NULL if the associated cipher information is not found. + */ +const mbedtls_cipher_info_t *mbedtls_cipher_info_from_values(const mbedtls_cipher_id_t cipher_id, + int key_bitlen, + const mbedtls_cipher_mode_t mode); + +/** + * \brief Retrieve the identifier for a cipher info structure. + * + * \param[in] info The cipher info structure to query. + * This may be \c NULL. + * + * \return The full cipher identifier (\c MBEDTLS_CIPHER_xxx). + * \return #MBEDTLS_CIPHER_NONE if \p info is \c NULL. + */ +static inline mbedtls_cipher_type_t mbedtls_cipher_info_get_type( + const mbedtls_cipher_info_t *info) +{ + if (info == NULL) { + return MBEDTLS_CIPHER_NONE; + } else { + return (mbedtls_cipher_type_t) info->MBEDTLS_PRIVATE(type); + } +} + +/** + * \brief Retrieve the operation mode for a cipher info structure. + * + * \param[in] info The cipher info structure to query. + * This may be \c NULL. + * + * \return The cipher mode (\c MBEDTLS_MODE_xxx). + * \return #MBEDTLS_MODE_NONE if \p info is \c NULL. + */ +static inline mbedtls_cipher_mode_t mbedtls_cipher_info_get_mode( + const mbedtls_cipher_info_t *info) +{ + if (info == NULL) { + return MBEDTLS_MODE_NONE; + } else { + return (mbedtls_cipher_mode_t) info->MBEDTLS_PRIVATE(mode); + } +} + +/** + * \brief Retrieve the key size for a cipher info structure. + * + * \param[in] info The cipher info structure to query. + * This may be \c NULL. + * + * \return The key length in bits. + * For variable-sized ciphers, this is the default length. + * For DES, this includes the parity bits. + * \return \c 0 if \p info is \c NULL. + */ +static inline size_t mbedtls_cipher_info_get_key_bitlen( + const mbedtls_cipher_info_t *info) +{ + if (info == NULL) { + return 0; + } else { + return info->MBEDTLS_PRIVATE(key_bitlen) << MBEDTLS_KEY_BITLEN_SHIFT; + } +} + +/** + * \brief Retrieve the human-readable name for a + * cipher info structure. + * + * \param[in] info The cipher info structure to query. + * This may be \c NULL. + * + * \return The cipher name, which is a human readable string, + * with static storage duration. + * \return \c NULL if \p info is \c NULL. + */ +static inline const char *mbedtls_cipher_info_get_name( + const mbedtls_cipher_info_t *info) +{ + if (info == NULL) { + return NULL; + } else { + return info->MBEDTLS_PRIVATE(name); + } +} + +/** + * \brief This function returns the size of the IV or nonce + * for the cipher info structure, in bytes. + * + * \param info The cipher info structure. This may be \c NULL. + * + * \return The recommended IV size. + * \return \c 0 for ciphers not using an IV or a nonce. + * \return \c 0 if \p info is \c NULL. + */ +static inline size_t mbedtls_cipher_info_get_iv_size( + const mbedtls_cipher_info_t *info) +{ + if (info == NULL) { + return 0; + } + + return ((size_t) info->MBEDTLS_PRIVATE(iv_size)) << MBEDTLS_IV_SIZE_SHIFT; +} + +/** + * \brief This function returns the block size of the given + * cipher info structure in bytes. + * + * \param info The cipher info structure. This may be \c NULL. + * + * \return The block size of the cipher. + * \return \c 1 if the cipher is a stream cipher. + * \return \c 0 if \p info is \c NULL. + */ +static inline size_t mbedtls_cipher_info_get_block_size( + const mbedtls_cipher_info_t *info) +{ + if (info == NULL) { + return 0; + } + + return (size_t) (info->MBEDTLS_PRIVATE(block_size)); +} + +/** + * \brief This function returns a non-zero value if the key length for + * the given cipher is variable. + * + * \param info The cipher info structure. This may be \c NULL. + * + * \return Non-zero if the key length is variable, \c 0 otherwise. + * \return \c 0 if the given pointer is \c NULL. + */ +static inline int mbedtls_cipher_info_has_variable_key_bitlen( + const mbedtls_cipher_info_t *info) +{ + if (info == NULL) { + return 0; + } + + return info->MBEDTLS_PRIVATE(flags) & MBEDTLS_CIPHER_VARIABLE_KEY_LEN; +} + +/** + * \brief This function returns a non-zero value if the IV size for + * the given cipher is variable. + * + * \param info The cipher info structure. This may be \c NULL. + * + * \return Non-zero if the IV size is variable, \c 0 otherwise. + * \return \c 0 if the given pointer is \c NULL. + */ +static inline int mbedtls_cipher_info_has_variable_iv_size( + const mbedtls_cipher_info_t *info) +{ + if (info == NULL) { + return 0; + } + + return info->MBEDTLS_PRIVATE(flags) & MBEDTLS_CIPHER_VARIABLE_IV_LEN; +} + +/** + * \brief This function initializes a \p ctx as NONE. + * + * \param ctx The context to be initialized. This must not be \c NULL. + */ +void mbedtls_cipher_init(mbedtls_cipher_context_t *ctx); + +/** + * \brief This function frees and clears the cipher-specific + * context of \p ctx. Freeing \p ctx itself remains the + * responsibility of the caller. + * + * \param ctx The context to be freed. If this is \c NULL, the + * function has no effect, otherwise this must point to an + * initialized context. + */ +void mbedtls_cipher_free(mbedtls_cipher_context_t *ctx); + + +/** + * \brief This function prepares a cipher context for + * use with the given cipher primitive. + * + * \note After calling this function, you should call + * mbedtls_cipher_setkey() and, if the mode uses padding, + * mbedtls_cipher_set_padding_mode(), then for each + * message to encrypt or decrypt with this key, either: + * - mbedtls_cipher_crypt() for one-shot processing with + * non-AEAD modes; + * - mbedtls_cipher_auth_encrypt_ext() or + * mbedtls_cipher_auth_decrypt_ext() for one-shot + * processing with AEAD modes or NIST_KW; + * - for multi-part processing, see the documentation of + * mbedtls_cipher_reset(). + * + * \param ctx The context to prepare. This must be initialized by + * a call to mbedtls_cipher_init() first. + * \param cipher_info The cipher to use. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA on + * parameter-verification failure. + * \return #MBEDTLS_ERR_CIPHER_ALLOC_FAILED if allocation of the + * cipher-specific context fails. + */ +int mbedtls_cipher_setup(mbedtls_cipher_context_t *ctx, + const mbedtls_cipher_info_t *cipher_info); + +#if defined(MBEDTLS_USE_PSA_CRYPTO) +#if !defined(MBEDTLS_DEPRECATED_REMOVED) +/** + * \brief This function initializes a cipher context for + * PSA-based use with the given cipher primitive. + * + * \deprecated This function is deprecated and will be removed in a + * future version of the library. + * Please use psa_aead_xxx() / psa_cipher_xxx() directly + * instead. + * + * \note See #MBEDTLS_USE_PSA_CRYPTO for information on PSA. + * + * \param ctx The context to initialize. May not be \c NULL. + * \param cipher_info The cipher to use. + * \param taglen For AEAD ciphers, the length in bytes of the + * authentication tag to use. Subsequent uses of + * mbedtls_cipher_auth_encrypt_ext() or + * mbedtls_cipher_auth_decrypt_ext() must provide + * the same tag length. + * For non-AEAD ciphers, the value must be \c 0. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA on + * parameter-verification failure. + * \return #MBEDTLS_ERR_CIPHER_ALLOC_FAILED if allocation of the + * cipher-specific context fails. + */ +int MBEDTLS_DEPRECATED mbedtls_cipher_setup_psa(mbedtls_cipher_context_t *ctx, + const mbedtls_cipher_info_t *cipher_info, + size_t taglen); +#endif /* MBEDTLS_DEPRECATED_REMOVED */ +#endif /* MBEDTLS_USE_PSA_CRYPTO */ + +/** + * \brief This function returns the block size of the given cipher + * in bytes. + * + * \param ctx The context of the cipher. + * + * \return The block size of the underlying cipher. + * \return \c 1 if the cipher is a stream cipher. + * \return \c 0 if \p ctx has not been initialized. + */ +static inline unsigned int mbedtls_cipher_get_block_size( + const mbedtls_cipher_context_t *ctx) +{ + MBEDTLS_INTERNAL_VALIDATE_RET(ctx != NULL, 0); + if (ctx->MBEDTLS_PRIVATE(cipher_info) == NULL) { + return 0; + } + + return (unsigned int) ctx->MBEDTLS_PRIVATE(cipher_info)->MBEDTLS_PRIVATE(block_size); +} + +/** + * \brief This function returns the mode of operation for + * the cipher. For example, MBEDTLS_MODE_CBC. + * + * \param ctx The context of the cipher. This must be initialized. + * + * \return The mode of operation. + * \return #MBEDTLS_MODE_NONE if \p ctx has not been initialized. + */ +static inline mbedtls_cipher_mode_t mbedtls_cipher_get_cipher_mode( + const mbedtls_cipher_context_t *ctx) +{ + MBEDTLS_INTERNAL_VALIDATE_RET(ctx != NULL, MBEDTLS_MODE_NONE); + if (ctx->MBEDTLS_PRIVATE(cipher_info) == NULL) { + return MBEDTLS_MODE_NONE; + } + + return (mbedtls_cipher_mode_t) ctx->MBEDTLS_PRIVATE(cipher_info)->MBEDTLS_PRIVATE(mode); +} + +/** + * \brief This function returns the size of the IV or nonce + * of the cipher, in Bytes. + * + * \param ctx The context of the cipher. This must be initialized. + * + * \return The recommended IV size if no IV has been set. + * \return \c 0 for ciphers not using an IV or a nonce. + * \return The actual size if an IV has been set. + */ +static inline int mbedtls_cipher_get_iv_size( + const mbedtls_cipher_context_t *ctx) +{ + MBEDTLS_INTERNAL_VALIDATE_RET(ctx != NULL, 0); + if (ctx->MBEDTLS_PRIVATE(cipher_info) == NULL) { + return 0; + } + + if (ctx->MBEDTLS_PRIVATE(iv_size) != 0) { + return (int) ctx->MBEDTLS_PRIVATE(iv_size); + } + + return (int) (((int) ctx->MBEDTLS_PRIVATE(cipher_info)->MBEDTLS_PRIVATE(iv_size)) << + MBEDTLS_IV_SIZE_SHIFT); +} + +/** + * \brief This function returns the type of the given cipher. + * + * \param ctx The context of the cipher. This must be initialized. + * + * \return The type of the cipher. + * \return #MBEDTLS_CIPHER_NONE if \p ctx has not been initialized. + */ +static inline mbedtls_cipher_type_t mbedtls_cipher_get_type( + const mbedtls_cipher_context_t *ctx) +{ + MBEDTLS_INTERNAL_VALIDATE_RET( + ctx != NULL, MBEDTLS_CIPHER_NONE); + if (ctx->MBEDTLS_PRIVATE(cipher_info) == NULL) { + return MBEDTLS_CIPHER_NONE; + } + + return (mbedtls_cipher_type_t) ctx->MBEDTLS_PRIVATE(cipher_info)->MBEDTLS_PRIVATE(type); +} + +/** + * \brief This function returns the name of the given cipher + * as a string. + * + * \param ctx The context of the cipher. This must be initialized. + * + * \return The name of the cipher. + * \return NULL if \p ctx has not been not initialized. + */ +static inline const char *mbedtls_cipher_get_name( + const mbedtls_cipher_context_t *ctx) +{ + MBEDTLS_INTERNAL_VALIDATE_RET(ctx != NULL, 0); + if (ctx->MBEDTLS_PRIVATE(cipher_info) == NULL) { + return 0; + } + + return ctx->MBEDTLS_PRIVATE(cipher_info)->MBEDTLS_PRIVATE(name); +} + +/** + * \brief This function returns the key length of the cipher. + * + * \param ctx The context of the cipher. This must be initialized. + * + * \return The key length of the cipher in bits. + * \return #MBEDTLS_KEY_LENGTH_NONE if \p ctx has not been + * initialized. + */ +static inline int mbedtls_cipher_get_key_bitlen( + const mbedtls_cipher_context_t *ctx) +{ + MBEDTLS_INTERNAL_VALIDATE_RET( + ctx != NULL, MBEDTLS_KEY_LENGTH_NONE); + if (ctx->MBEDTLS_PRIVATE(cipher_info) == NULL) { + return MBEDTLS_KEY_LENGTH_NONE; + } + + return (int) ctx->MBEDTLS_PRIVATE(cipher_info)->MBEDTLS_PRIVATE(key_bitlen) << + MBEDTLS_KEY_BITLEN_SHIFT; +} + +/** + * \brief This function returns the operation of the given cipher. + * + * \param ctx The context of the cipher. This must be initialized. + * + * \return The type of operation: #MBEDTLS_ENCRYPT or #MBEDTLS_DECRYPT. + * \return #MBEDTLS_OPERATION_NONE if \p ctx has not been initialized. + */ +static inline mbedtls_operation_t mbedtls_cipher_get_operation( + const mbedtls_cipher_context_t *ctx) +{ + MBEDTLS_INTERNAL_VALIDATE_RET( + ctx != NULL, MBEDTLS_OPERATION_NONE); + if (ctx->MBEDTLS_PRIVATE(cipher_info) == NULL) { + return MBEDTLS_OPERATION_NONE; + } + + return ctx->MBEDTLS_PRIVATE(operation); +} + +/** + * \brief This function sets the key to use with the given context. + * + * \param ctx The generic cipher context. This must be initialized and + * bound to a cipher information structure. + * \param key The key to use. This must be a readable buffer of at + * least \p key_bitlen Bits. + * \param key_bitlen The key length to use, in Bits. + * \param operation The operation that the key will be used for: + * #MBEDTLS_ENCRYPT or #MBEDTLS_DECRYPT. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA on + * parameter-verification failure. + * \return A cipher-specific error code on failure. + */ +int mbedtls_cipher_setkey(mbedtls_cipher_context_t *ctx, + const unsigned char *key, + int key_bitlen, + const mbedtls_operation_t operation); + +#if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) +/** + * \brief This function sets the padding mode, for cipher modes + * that use padding. + * + * + * \param ctx The generic cipher context. This must be initialized and + * bound to a cipher information structure. + * \param mode The padding mode. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE + * if the selected padding mode is not supported. + * \return #MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA if the cipher mode + * does not support padding. + */ +int mbedtls_cipher_set_padding_mode(mbedtls_cipher_context_t *ctx, + mbedtls_cipher_padding_t mode); +#endif /* MBEDTLS_CIPHER_MODE_WITH_PADDING */ + +/** + * \brief This function sets the initialization vector (IV) + * or nonce. + * + * \note Some ciphers do not use IVs nor nonce. For these + * ciphers, this function has no effect. + * + * \note For #MBEDTLS_CIPHER_CHACHA20, the nonce length must + * be 12, and the initial counter value is 0. + * + * \note For #MBEDTLS_CIPHER_CHACHA20_POLY1305, the nonce length + * must be 12. + * + * \param ctx The generic cipher context. This must be initialized and + * bound to a cipher information structure. + * \param iv The IV to use, or NONCE_COUNTER for CTR-mode ciphers. This + * must be a readable buffer of at least \p iv_len Bytes. + * \param iv_len The IV length for ciphers with variable-size IV. + * This parameter is discarded by ciphers with fixed-size IV. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA on + * parameter-verification failure. + */ +int mbedtls_cipher_set_iv(mbedtls_cipher_context_t *ctx, + const unsigned char *iv, + size_t iv_len); + +/** + * \brief This function resets the cipher state. + * + * \note With non-AEAD ciphers, the order of calls for each message + * is as follows: + * 1. mbedtls_cipher_set_iv() if the mode uses an IV/nonce. + * 2. mbedtls_cipher_reset() + * 3. mbedtls_cipher_update() one or more times + * 4. mbedtls_cipher_finish() + * . + * This sequence can be repeated to encrypt or decrypt multiple + * messages with the same key. + * + * \note With AEAD ciphers, the order of calls for each message + * is as follows: + * 1. mbedtls_cipher_set_iv() if the mode uses an IV/nonce. + * 2. mbedtls_cipher_reset() + * 3. mbedtls_cipher_update_ad() + * 4. mbedtls_cipher_update() one or more times + * 5. mbedtls_cipher_finish() + * 6. mbedtls_cipher_check_tag() (for decryption) or + * mbedtls_cipher_write_tag() (for encryption). + * . + * This sequence can be repeated to encrypt or decrypt multiple + * messages with the same key. + * + * \param ctx The generic cipher context. This must be bound to a key. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA on + * parameter-verification failure. + */ +int mbedtls_cipher_reset(mbedtls_cipher_context_t *ctx); + +#if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) +/** + * \brief This function adds additional data for AEAD ciphers. + * Currently supported with GCM and ChaCha20+Poly1305. + * + * \param ctx The generic cipher context. This must be initialized. + * \param ad The additional data to use. This must be a readable + * buffer of at least \p ad_len Bytes. + * \param ad_len The length of \p ad in Bytes. + * + * \return \c 0 on success. + * \return A specific error code on failure. + */ +int mbedtls_cipher_update_ad(mbedtls_cipher_context_t *ctx, + const unsigned char *ad, size_t ad_len); +#endif /* MBEDTLS_GCM_C || MBEDTLS_CHACHAPOLY_C */ + +/** + * \brief The generic cipher update function. It encrypts or + * decrypts using the given cipher context. Writes as + * many block-sized blocks of data as possible to output. + * Any data that cannot be written immediately is either + * added to the next block, or flushed when + * mbedtls_cipher_finish() is called. + * Exception: For MBEDTLS_MODE_ECB, expects a single block + * in size. For example, 16 Bytes for AES. + * + * \param ctx The generic cipher context. This must be initialized and + * bound to a key. + * \param input The buffer holding the input data. This must be a + * readable buffer of at least \p ilen Bytes. + * \param ilen The length of the input data. + * \param output The buffer for the output data. This must be able to + * hold at least `ilen + block_size`. This must not be the + * same buffer as \p input. + * \param olen The length of the output data, to be updated with the + * actual number of Bytes written. This must not be + * \c NULL. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA on + * parameter-verification failure. + * \return #MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE on an + * unsupported mode for a cipher. + * \return A cipher-specific error code on failure. + */ +int mbedtls_cipher_update(mbedtls_cipher_context_t *ctx, + const unsigned char *input, + size_t ilen, unsigned char *output, + size_t *olen); + +/** + * \brief The generic cipher finalization function. If data still + * needs to be flushed from an incomplete block, the data + * contained in it is padded to the size of + * the last block, and written to the \p output buffer. + * + * \param ctx The generic cipher context. This must be initialized and + * bound to a key. + * \param output The buffer to write data to. This needs to be a writable + * buffer of at least block_size Bytes. + * \param olen The length of the data written to the \p output buffer. + * This may not be \c NULL. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA on + * parameter-verification failure. + * \return #MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED on decryption + * expecting a full block but not receiving one. + * \return #MBEDTLS_ERR_CIPHER_INVALID_PADDING on invalid padding + * while decrypting. + * \return A cipher-specific error code on failure. + */ +int mbedtls_cipher_finish(mbedtls_cipher_context_t *ctx, + unsigned char *output, size_t *olen); + +#if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) +/** + * \brief This function writes a tag for AEAD ciphers. + * Currently supported with GCM and ChaCha20+Poly1305. + * This must be called after mbedtls_cipher_finish(). + * + * \param ctx The generic cipher context. This must be initialized, + * bound to a key, and have just completed a cipher + * operation through mbedtls_cipher_finish() the tag for + * which should be written. + * \param tag The buffer to write the tag to. This must be a writable + * buffer of at least \p tag_len Bytes. + * \param tag_len The length of the tag to write. + * + * \return \c 0 on success. + * \return A specific error code on failure. + */ +int mbedtls_cipher_write_tag(mbedtls_cipher_context_t *ctx, + unsigned char *tag, size_t tag_len); + +/** + * \brief This function checks the tag for AEAD ciphers. + * Currently supported with GCM and ChaCha20+Poly1305. + * This must be called after mbedtls_cipher_finish(). + * + * \param ctx The generic cipher context. This must be initialized. + * \param tag The buffer holding the tag. This must be a readable + * buffer of at least \p tag_len Bytes. + * \param tag_len The length of the tag to check. + * + * \return \c 0 on success. + * \return A specific error code on failure. + */ +int mbedtls_cipher_check_tag(mbedtls_cipher_context_t *ctx, + const unsigned char *tag, size_t tag_len); +#endif /* MBEDTLS_GCM_C || MBEDTLS_CHACHAPOLY_C */ + +/** + * \brief The generic all-in-one encryption/decryption function, + * for all ciphers except AEAD constructs. + * + * \param ctx The generic cipher context. This must be initialized. + * \param iv The IV to use, or NONCE_COUNTER for CTR-mode ciphers. + * This must be a readable buffer of at least \p iv_len + * Bytes. + * \param iv_len The IV length for ciphers with variable-size IV. + * This parameter is discarded by ciphers with fixed-size + * IV. + * \param input The buffer holding the input data. This must be a + * readable buffer of at least \p ilen Bytes. + * \param ilen The length of the input data in Bytes. + * \param output The buffer for the output data. This must be able to + * hold at least `ilen + block_size`. This must not be the + * same buffer as \p input. + * \param olen The length of the output data, to be updated with the + * actual number of Bytes written. This must not be + * \c NULL. + * + * \note Some ciphers do not use IVs nor nonce. For these + * ciphers, use \p iv = NULL and \p iv_len = 0. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA on + * parameter-verification failure. + * \return #MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED on decryption + * expecting a full block but not receiving one. + * \return #MBEDTLS_ERR_CIPHER_INVALID_PADDING on invalid padding + * while decrypting. + * \return A cipher-specific error code on failure. + */ +int mbedtls_cipher_crypt(mbedtls_cipher_context_t *ctx, + const unsigned char *iv, size_t iv_len, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen); + +#if defined(MBEDTLS_CIPHER_MODE_AEAD) || defined(MBEDTLS_NIST_KW_C) +/** + * \brief The authenticated encryption (AEAD/NIST_KW) function. + * + * \note For AEAD modes, the tag will be appended to the + * ciphertext, as recommended by RFC 5116. + * (NIST_KW doesn't have a separate tag.) + * + * \param ctx The generic cipher context. This must be initialized and + * bound to a key, with an AEAD algorithm or NIST_KW. + * \param iv The nonce to use. This must be a readable buffer of + * at least \p iv_len Bytes and may be \c NULL if \p + * iv_len is \c 0. + * \param iv_len The length of the nonce. For AEAD ciphers, this must + * satisfy the constraints imposed by the cipher used. + * For NIST_KW, this must be \c 0. + * \param ad The additional data to authenticate. This must be a + * readable buffer of at least \p ad_len Bytes, and may + * be \c NULL is \p ad_len is \c 0. + * \param ad_len The length of \p ad. For NIST_KW, this must be \c 0. + * \param input The buffer holding the input data. This must be a + * readable buffer of at least \p ilen Bytes, and may be + * \c NULL if \p ilen is \c 0. + * \param ilen The length of the input data. + * \param output The buffer for the output data. This must be a + * writable buffer of at least \p output_len Bytes, and + * must not be \c NULL. + * \param output_len The length of the \p output buffer in Bytes. For AEAD + * ciphers, this must be at least \p ilen + \p tag_len. + * For NIST_KW, this must be at least \p ilen + 8 + * (rounded up to a multiple of 8 if KWP is used); + * \p ilen + 15 is always a safe value. + * \param olen This will be filled with the actual number of Bytes + * written to the \p output buffer. This must point to a + * writable object of type \c size_t. + * \param tag_len The desired length of the authentication tag. For AEAD + * ciphers, this must match the constraints imposed by + * the cipher used, and in particular must not be \c 0. + * For NIST_KW, this must be \c 0. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA on + * parameter-verification failure. + * \return A cipher-specific error code on failure. + */ +int mbedtls_cipher_auth_encrypt_ext(mbedtls_cipher_context_t *ctx, + const unsigned char *iv, size_t iv_len, + const unsigned char *ad, size_t ad_len, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t output_len, + size_t *olen, size_t tag_len); + +/** + * \brief The authenticated encryption (AEAD/NIST_KW) function. + * + * \note If the data is not authentic, then the output buffer + * is zeroed out to prevent the unauthentic plaintext being + * used, making this interface safer. + * + * \note For AEAD modes, the tag must be appended to the + * ciphertext, as recommended by RFC 5116. + * (NIST_KW doesn't have a separate tag.) + * + * \param ctx The generic cipher context. This must be initialized and + * bound to a key, with an AEAD algorithm or NIST_KW. + * \param iv The nonce to use. This must be a readable buffer of + * at least \p iv_len Bytes and may be \c NULL if \p + * iv_len is \c 0. + * \param iv_len The length of the nonce. For AEAD ciphers, this must + * satisfy the constraints imposed by the cipher used. + * For NIST_KW, this must be \c 0. + * \param ad The additional data to authenticate. This must be a + * readable buffer of at least \p ad_len Bytes, and may + * be \c NULL is \p ad_len is \c 0. + * \param ad_len The length of \p ad. For NIST_KW, this must be \c 0. + * \param input The buffer holding the input data. This must be a + * readable buffer of at least \p ilen Bytes, and may be + * \c NULL if \p ilen is \c 0. + * \param ilen The length of the input data. For AEAD ciphers this + * must be at least \p tag_len. For NIST_KW this must be + * at least \c 8. + * \param output The buffer for the output data. This must be a + * writable buffer of at least \p output_len Bytes, and + * may be \c NULL if \p output_len is \c 0. + * \param output_len The length of the \p output buffer in Bytes. For AEAD + * ciphers, this must be at least \p ilen - \p tag_len. + * For NIST_KW, this must be at least \p ilen - 8. + * \param olen This will be filled with the actual number of Bytes + * written to the \p output buffer. This must point to a + * writable object of type \c size_t. + * \param tag_len The actual length of the authentication tag. For AEAD + * ciphers, this must match the constraints imposed by + * the cipher used, and in particular must not be \c 0. + * For NIST_KW, this must be \c 0. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA on + * parameter-verification failure. + * \return #MBEDTLS_ERR_CIPHER_AUTH_FAILED if data is not authentic. + * \return A cipher-specific error code on failure. + */ +int mbedtls_cipher_auth_decrypt_ext(mbedtls_cipher_context_t *ctx, + const unsigned char *iv, size_t iv_len, + const unsigned char *ad, size_t ad_len, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t output_len, + size_t *olen, size_t tag_len); +#endif /* MBEDTLS_CIPHER_MODE_AEAD || MBEDTLS_NIST_KW_C */ +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_CIPHER_H */ diff --git a/include/mbedtls/cmac.h b/include/mbedtls/cmac.h new file mode 100644 index 0000000..97b86fc --- /dev/null +++ b/include/mbedtls/cmac.h @@ -0,0 +1,246 @@ +/** + * \file cmac.h + * + * \brief This file contains CMAC definitions and functions. + * + * The Cipher-based Message Authentication Code (CMAC) Mode for + * Authentication is defined in <em>RFC-4493: The AES-CMAC Algorithm</em>. + * It is supported with AES and DES. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CMAC_H +#define MBEDTLS_CMAC_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/cipher.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define MBEDTLS_AES_BLOCK_SIZE 16 +#define MBEDTLS_DES3_BLOCK_SIZE 8 + +/* We don't support Camellia or ARIA in this module */ +#if defined(MBEDTLS_AES_C) +#define MBEDTLS_CMAC_MAX_BLOCK_SIZE 16 /**< The longest block used by CMAC is that of AES. */ +#else +#define MBEDTLS_CMAC_MAX_BLOCK_SIZE 8 /**< The longest block used by CMAC is that of 3DES. */ +#endif + +#if !defined(MBEDTLS_DEPRECATED_REMOVED) +/** The longest block supported by the cipher module. + * + * \deprecated + * For the maximum block size of a cipher supported by the CMAC module, + * use #MBEDTLS_CMAC_MAX_BLOCK_SIZE. + * For the maximum block size of a cipher supported by the cipher module, + * use #MBEDTLS_MAX_BLOCK_LENGTH. + */ +/* Before Mbed TLS 3.5, this was the maximum block size supported by the CMAC + * module, so it didn't take Camellia or ARIA into account. Since the name + * of the macro doesn't even convey "CMAC", this was misleading. Now the size + * is sufficient for any cipher, but the name is defined in cmac.h for + * backward compatibility. */ +#define MBEDTLS_CIPHER_BLKSIZE_MAX MBEDTLS_MAX_BLOCK_LENGTH +#endif /* MBEDTLS_DEPRECATED_REMOVED */ + +#if !defined(MBEDTLS_CMAC_ALT) + +/** + * The CMAC context structure. + */ +struct mbedtls_cmac_context_t { + /** The internal state of the CMAC algorithm. */ + unsigned char MBEDTLS_PRIVATE(state)[MBEDTLS_CMAC_MAX_BLOCK_SIZE]; + + /** Unprocessed data - either data that was not block aligned and is still + * pending processing, or the final block. */ + unsigned char MBEDTLS_PRIVATE(unprocessed_block)[MBEDTLS_CMAC_MAX_BLOCK_SIZE]; + + /** The length of data pending processing. */ + size_t MBEDTLS_PRIVATE(unprocessed_len); +}; + +#else /* !MBEDTLS_CMAC_ALT */ +#include "cmac_alt.h" +#endif /* !MBEDTLS_CMAC_ALT */ + +/** + * \brief This function starts a new CMAC computation + * by setting the CMAC key, and preparing to authenticate + * the input data. + * It must be called with an initialized cipher context. + * + * Once this function has completed, data can be supplied + * to the CMAC computation by calling + * mbedtls_cipher_cmac_update(). + * + * To start a CMAC computation using the same key as a previous + * CMAC computation, use mbedtls_cipher_cmac_finish(). + * + * \note When the CMAC implementation is supplied by an alternate + * implementation (through #MBEDTLS_CMAC_ALT), some ciphers + * may not be supported by that implementation, and thus + * return an error. Alternate implementations must support + * AES-128 and AES-256, and may support AES-192 and 3DES. + * + * \param ctx The cipher context used for the CMAC operation, initialized + * as one of the following types: MBEDTLS_CIPHER_AES_128_ECB, + * MBEDTLS_CIPHER_AES_192_ECB, MBEDTLS_CIPHER_AES_256_ECB, + * or MBEDTLS_CIPHER_DES_EDE3_ECB. + * \param key The CMAC key. + * \param keybits The length of the CMAC key in bits. + * Must be supported by the cipher. + * + * \return \c 0 on success. + * \return A cipher-specific error code on failure. + */ +int mbedtls_cipher_cmac_starts(mbedtls_cipher_context_t *ctx, + const unsigned char *key, size_t keybits); + +/** + * \brief This function feeds an input buffer into an ongoing CMAC + * computation. + * + * The CMAC computation must have previously been started + * by calling mbedtls_cipher_cmac_starts() or + * mbedtls_cipher_cmac_reset(). + * + * Call this function as many times as needed to input the + * data to be authenticated. + * Once all of the required data has been input, + * call mbedtls_cipher_cmac_finish() to obtain the result + * of the CMAC operation. + * + * \param ctx The cipher context used for the CMAC operation. + * \param input The buffer holding the input data. + * \param ilen The length of the input data. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA + * if parameter verification fails. + */ +int mbedtls_cipher_cmac_update(mbedtls_cipher_context_t *ctx, + const unsigned char *input, size_t ilen); + +/** + * \brief This function finishes an ongoing CMAC operation, and + * writes the result to the output buffer. + * + * It should be followed either by + * mbedtls_cipher_cmac_reset(), which starts another CMAC + * operation with the same key, or mbedtls_cipher_free(), + * which clears the cipher context. + * + * \param ctx The cipher context used for the CMAC operation. + * \param output The output buffer for the CMAC checksum result. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA + * if parameter verification fails. + */ +int mbedtls_cipher_cmac_finish(mbedtls_cipher_context_t *ctx, + unsigned char *output); + +/** + * \brief This function starts a new CMAC operation with the same + * key as the previous one. + * + * It should be called after finishing the previous CMAC + * operation with mbedtls_cipher_cmac_finish(). + * After calling this function, + * call mbedtls_cipher_cmac_update() to supply the new + * CMAC operation with data. + * + * \param ctx The cipher context used for the CMAC operation. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA + * if parameter verification fails. + */ +int mbedtls_cipher_cmac_reset(mbedtls_cipher_context_t *ctx); + +/** + * \brief This function calculates the full generic CMAC + * on the input buffer with the provided key. + * + * The function allocates the context, performs the + * calculation, and frees the context. + * + * The CMAC result is calculated as + * output = generic CMAC(cmac key, input buffer). + * + * \note When the CMAC implementation is supplied by an alternate + * implementation (through #MBEDTLS_CMAC_ALT), some ciphers + * may not be supported by that implementation, and thus + * return an error. Alternate implementations must support + * AES-128 and AES-256, and may support AES-192 and 3DES. + * + * \param cipher_info The cipher information. + * \param key The CMAC key. + * \param keylen The length of the CMAC key in bits. + * \param input The buffer holding the input data. + * \param ilen The length of the input data. + * \param output The buffer for the generic CMAC result. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA + * if parameter verification fails. + */ +int mbedtls_cipher_cmac(const mbedtls_cipher_info_t *cipher_info, + const unsigned char *key, size_t keylen, + const unsigned char *input, size_t ilen, + unsigned char *output); + +#if defined(MBEDTLS_AES_C) +/** + * \brief This function implements the AES-CMAC-PRF-128 pseudorandom + * function, as defined in + * <em>RFC-4615: The Advanced Encryption Standard-Cipher-based + * Message Authentication Code-Pseudo-Random Function-128 + * (AES-CMAC-PRF-128) Algorithm for the Internet Key + * Exchange Protocol (IKE).</em> + * + * \param key The key to use. + * \param key_len The key length in Bytes. + * \param input The buffer holding the input data. + * \param in_len The length of the input data in Bytes. + * \param output The buffer holding the generated 16 Bytes of + * pseudorandom output. + * + * \return \c 0 on success. + */ +int mbedtls_aes_cmac_prf_128(const unsigned char *key, size_t key_len, + const unsigned char *input, size_t in_len, + unsigned char output[16]); +#endif /* MBEDTLS_AES_C */ + +#if defined(MBEDTLS_SELF_TEST) && (defined(MBEDTLS_AES_C) || defined(MBEDTLS_DES_C)) +/** + * \brief The CMAC checkup routine. + * + * \note In case the CMAC routines are provided by an alternative + * implementation (i.e. #MBEDTLS_CMAC_ALT is defined), the + * checkup routine will succeed even if the implementation does + * not support the less widely used AES-192 or 3DES primitives. + * The self-test requires at least AES-128 and AES-256 to be + * supported by the underlying implementation. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_cmac_self_test(int verbose); +#endif /* MBEDTLS_SELF_TEST && ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */ + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_CMAC_H */ diff --git a/include/mbedtls/compat-2.x.h b/include/mbedtls/compat-2.x.h new file mode 100644 index 0000000..096341b --- /dev/null +++ b/include/mbedtls/compat-2.x.h @@ -0,0 +1,46 @@ +/** + * \file compat-2.x.h + * + * \brief Compatibility definitions + * + * \deprecated Use the new names directly instead + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#if defined(MBEDTLS_DEPRECATED_WARNING) +#warning "Including compat-2.x.h is deprecated" +#endif + +#ifndef MBEDTLS_COMPAT2X_H +#define MBEDTLS_COMPAT2X_H + +/* + * Macros for renamed functions + */ +#define mbedtls_ctr_drbg_update_ret mbedtls_ctr_drbg_update +#define mbedtls_hmac_drbg_update_ret mbedtls_hmac_drbg_update +#define mbedtls_md5_starts_ret mbedtls_md5_starts +#define mbedtls_md5_update_ret mbedtls_md5_update +#define mbedtls_md5_finish_ret mbedtls_md5_finish +#define mbedtls_md5_ret mbedtls_md5 +#define mbedtls_ripemd160_starts_ret mbedtls_ripemd160_starts +#define mbedtls_ripemd160_update_ret mbedtls_ripemd160_update +#define mbedtls_ripemd160_finish_ret mbedtls_ripemd160_finish +#define mbedtls_ripemd160_ret mbedtls_ripemd160 +#define mbedtls_sha1_starts_ret mbedtls_sha1_starts +#define mbedtls_sha1_update_ret mbedtls_sha1_update +#define mbedtls_sha1_finish_ret mbedtls_sha1_finish +#define mbedtls_sha1_ret mbedtls_sha1 +#define mbedtls_sha256_starts_ret mbedtls_sha256_starts +#define mbedtls_sha256_update_ret mbedtls_sha256_update +#define mbedtls_sha256_finish_ret mbedtls_sha256_finish +#define mbedtls_sha256_ret mbedtls_sha256 +#define mbedtls_sha512_starts_ret mbedtls_sha512_starts +#define mbedtls_sha512_update_ret mbedtls_sha512_update +#define mbedtls_sha512_finish_ret mbedtls_sha512_finish +#define mbedtls_sha512_ret mbedtls_sha512 + +#endif /* MBEDTLS_COMPAT2X_H */ diff --git a/include/mbedtls/config_adjust_legacy_crypto.h b/include/mbedtls/config_adjust_legacy_crypto.h new file mode 100644 index 0000000..f769765 --- /dev/null +++ b/include/mbedtls/config_adjust_legacy_crypto.h @@ -0,0 +1,183 @@ +/** + * \file mbedtls/config_adjust_legacy_crypto.h + * \brief Adjust legacy configuration configuration + * + * Automatically enable certain dependencies. Generally, MBEDLTS_xxx + * configurations need to be explicitly enabled by the user: enabling + * MBEDTLS_xxx_A but not MBEDTLS_xxx_B when A requires B results in a + * compilation error. However, we do automatically enable certain options + * in some circumstances. One case is if MBEDTLS_xxx_B is an internal option + * used to identify parts of a module that are used by other module, and we + * don't want to make the symbol MBEDTLS_xxx_B part of the public API. + * Another case is if A didn't depend on B in earlier versions, and we + * want to use B in A but we need to preserve backward compatibility with + * configurations that explicitly activate MBEDTLS_xxx_A but not + * MBEDTLS_xxx_B. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CONFIG_ADJUST_LEGACY_CRYPTO_H +#define MBEDTLS_CONFIG_ADJUST_LEGACY_CRYPTO_H + +/* Auto-enable MBEDTLS_MD_LIGHT based on MBEDTLS_MD_C. + * This allows checking for MD_LIGHT rather than MD_LIGHT || MD_C. + */ +#if defined(MBEDTLS_MD_C) +#define MBEDTLS_MD_LIGHT +#endif + +/* Auto-enable MBEDTLS_MD_LIGHT if needed by a module that didn't require it + * in a previous release, to ensure backwards compatibility. + */ +#if defined(MBEDTLS_ECJPAKE_C) || \ + defined(MBEDTLS_PEM_PARSE_C) || \ + defined(MBEDTLS_ENTROPY_C) || \ + defined(MBEDTLS_PK_C) || \ + defined(MBEDTLS_PKCS12_C) || \ + defined(MBEDTLS_RSA_C) || \ + defined(MBEDTLS_SSL_TLS_C) || \ + defined(MBEDTLS_X509_USE_C) || \ + defined(MBEDTLS_X509_CREATE_C) +#define MBEDTLS_MD_LIGHT +#endif + +/* MBEDTLS_ECP_LIGHT is auto-enabled by the following symbols: + * - MBEDTLS_ECP_C because now it consists of MBEDTLS_ECP_LIGHT plus functions + * for curve arithmetic. As a consequence if MBEDTLS_ECP_C is required for + * some reason, then MBEDTLS_ECP_LIGHT should be enabled as well. + * - MBEDTLS_PK_PARSE_EC_EXTENDED and MBEDTLS_PK_PARSE_EC_COMPRESSED because + * these features are not supported in PSA so the only way to have them is + * to enable the built-in solution. + * Both of them are temporary dependencies: + * - PK_PARSE_EC_EXTENDED will be removed after #7779 and #7789 + * - support for compressed points should also be added to PSA, but in this + * case there is no associated issue to track it yet. + * - PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE because Weierstrass key derivation + * still depends on ECP_LIGHT. + * - PK_C + USE_PSA + PSA_WANT_ALG_ECDSA is a temporary dependency which will + * be fixed by #7453. + */ +#if defined(MBEDTLS_ECP_C) || \ + defined(MBEDTLS_PK_PARSE_EC_EXTENDED) || \ + defined(MBEDTLS_PK_PARSE_EC_COMPRESSED) || \ + defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_DERIVE) +#define MBEDTLS_ECP_LIGHT +#endif + +/* MBEDTLS_PK_PARSE_EC_COMPRESSED is introduced in MbedTLS version 3.5, while + * in previous version compressed points were automatically supported as long + * as PK_PARSE_C and ECP_C were enabled. As a consequence, for backward + * compatibility, we auto-enable PK_PARSE_EC_COMPRESSED when these conditions + * are met. */ +#if defined(MBEDTLS_PK_PARSE_C) && defined(MBEDTLS_ECP_C) +#define MBEDTLS_PK_PARSE_EC_COMPRESSED +#endif + +/* Helper symbol to state that there is support for ECDH, either through + * library implementation (ECDH_C) or through PSA. */ +#if (defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_ALG_ECDH)) || \ + (!defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_ECDH_C)) +#define MBEDTLS_CAN_ECDH +#endif + +/* PK module can achieve ECDSA functionalities by means of either software + * implementations (ECDSA_C) or through a PSA driver. The following defines + * are meant to list these capabilities in a general way which abstracts how + * they are implemented under the hood. */ +#if !defined(MBEDTLS_USE_PSA_CRYPTO) +#if defined(MBEDTLS_ECDSA_C) +#define MBEDTLS_PK_CAN_ECDSA_SIGN +#define MBEDTLS_PK_CAN_ECDSA_VERIFY +#endif /* MBEDTLS_ECDSA_C */ +#else /* MBEDTLS_USE_PSA_CRYPTO */ +#if defined(PSA_WANT_ALG_ECDSA) +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC) +#define MBEDTLS_PK_CAN_ECDSA_SIGN +#endif /* PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC */ +#if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY) +#define MBEDTLS_PK_CAN_ECDSA_VERIFY +#endif /* PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY */ +#endif /* PSA_WANT_ALG_ECDSA */ +#endif /* MBEDTLS_USE_PSA_CRYPTO */ + +#if defined(MBEDTLS_PK_CAN_ECDSA_VERIFY) || defined(MBEDTLS_PK_CAN_ECDSA_SIGN) +#define MBEDTLS_PK_CAN_ECDSA_SOME +#endif + +/* If MBEDTLS_PSA_CRYPTO_C is defined, make sure MBEDTLS_PSA_CRYPTO_CLIENT + * is defined as well to include all PSA code. + */ +#if defined(MBEDTLS_PSA_CRYPTO_C) +#define MBEDTLS_PSA_CRYPTO_CLIENT +#endif /* MBEDTLS_PSA_CRYPTO_C */ + +/* The PK wrappers need pk_write functions to format RSA key objects + * when they are dispatching to the PSA API. This happens under USE_PSA_CRYPTO, + * and also even without USE_PSA_CRYPTO for mbedtls_pk_sign_ext(). */ +#if defined(MBEDTLS_PSA_CRYPTO_C) && defined(MBEDTLS_RSA_C) +#define MBEDTLS_PK_C +#define MBEDTLS_PK_WRITE_C +#define MBEDTLS_PK_PARSE_C +#endif + +/* Helpers to state that each key is supported either on the builtin or PSA side. */ +#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_521) +#define MBEDTLS_ECP_HAVE_SECP521R1 +#endif +#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512) +#define MBEDTLS_ECP_HAVE_BP512R1 +#endif +#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) || defined(PSA_WANT_ECC_MONTGOMERY_448) +#define MBEDTLS_ECP_HAVE_CURVE448 +#endif +#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384) +#define MBEDTLS_ECP_HAVE_BP384R1 +#endif +#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_384) +#define MBEDTLS_ECP_HAVE_SECP384R1 +#endif +#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256) +#define MBEDTLS_ECP_HAVE_BP256R1 +#endif +#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) || defined(PSA_WANT_ECC_SECP_K1_256) +#define MBEDTLS_ECP_HAVE_SECP256K1 +#endif +#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_256) +#define MBEDTLS_ECP_HAVE_SECP256R1 +#endif +#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) || defined(PSA_WANT_ECC_MONTGOMERY_255) +#define MBEDTLS_ECP_HAVE_CURVE25519 +#endif +#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) || defined(PSA_WANT_ECC_SECP_K1_224) +#define MBEDTLS_ECP_HAVE_SECP224K1 +#endif +#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_224) +#define MBEDTLS_ECP_HAVE_SECP224R1 +#endif +#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) || defined(PSA_WANT_ECC_SECP_K1_192) +#define MBEDTLS_ECP_HAVE_SECP192K1 +#endif +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_192) +#define MBEDTLS_ECP_HAVE_SECP192R1 +#endif + +/* Helper symbol to state that the PK module has support for EC keys. This + * can either be provided through the legacy ECP solution or through the + * PSA friendly MBEDTLS_PK_USE_PSA_EC_DATA (see pk.h for its description). */ +#if defined(MBEDTLS_ECP_C) || \ + (defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY)) +#define MBEDTLS_PK_HAVE_ECC_KEYS +#endif /* MBEDTLS_PK_USE_PSA_EC_DATA || MBEDTLS_ECP_C */ + +/* Historically pkparse did not check the CBC padding when decrypting + * a key. This was a bug, which is now fixed. As a consequence, pkparse + * now needs PKCS7 padding support, but existing configurations might not + * enable it, so we enable it here. */ +#if defined(MBEDTLS_PK_PARSE_C) && defined(MBEDTLS_PKCS5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) +#define MBEDTLS_CIPHER_PADDING_PKCS7 +#endif + +#endif /* MBEDTLS_CONFIG_ADJUST_LEGACY_CRYPTO_H */ diff --git a/include/mbedtls/config_adjust_legacy_from_psa.h b/include/mbedtls/config_adjust_legacy_from_psa.h new file mode 100644 index 0000000..ab18d98 --- /dev/null +++ b/include/mbedtls/config_adjust_legacy_from_psa.h @@ -0,0 +1,877 @@ +/** + * \file mbedtls/config_adjust_legacy_from_psa.h + * \brief Adjust PSA configuration: activate legacy implementations + * + * When MBEDTLS_PSA_CRYPTO_CONFIG is enabled, activate legacy implementations + * of cryptographic mechanisms as needed to fulfill the needs of the PSA + * configuration. Generally speaking, we activate a legacy mechanism if + * it's needed for a requested PSA mechanism and there is no PSA driver + * for it. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CONFIG_ADJUST_LEGACY_FROM_PSA_H +#define MBEDTLS_CONFIG_ADJUST_LEGACY_FROM_PSA_H + +/* Define appropriate ACCEL macros for the p256-m driver. + * In the future, those should be generated from the drivers JSON description. + */ +#if defined(MBEDTLS_PSA_P256M_DRIVER_ENABLED) +#define MBEDTLS_PSA_ACCEL_ECC_SECP_R1_256 +#define MBEDTLS_PSA_ACCEL_ALG_ECDSA +#define MBEDTLS_PSA_ACCEL_ALG_ECDH +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_PUBLIC_KEY +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_BASIC +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_IMPORT +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_EXPORT +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_GENERATE +#endif + +/* + * ECC: support for a feature is controlled by a triplet or a pair: + * (curve, key_type public/basic, alg) or (curve, key_type_<action>). + * + * A triplet/pair is accelerated if all of is components are accelerated; + * otherwise each component needs to be built in. + * + * We proceed in two passes: + * 1. Check if acceleration is complete for curves, key types, algs. + * 2. Then enable built-ins for each thing that's either not accelerated of + * doesn't have complete acceleration of the other triplet/pair components. + * + * Note: this needs psa/crypto_adjust_keypair_types.h to have been included + * already, so that we know the full set of key types that are requested. + */ + +/* ECC: curves: is acceleration complete? */ +#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256) && \ + !defined(MBEDTLS_PSA_ACCEL_ECC_BRAINPOOL_P_R1_256) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_WEIERSTRASS_CURVES +#endif + +#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384) && \ + !defined(MBEDTLS_PSA_ACCEL_ECC_BRAINPOOL_P_R1_384) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_WEIERSTRASS_CURVES +#endif + +#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512) && \ + !defined(MBEDTLS_PSA_ACCEL_ECC_BRAINPOOL_P_R1_512) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_WEIERSTRASS_CURVES +#endif + +#if defined(PSA_WANT_ECC_MONTGOMERY_255) && \ + !defined(MBEDTLS_PSA_ACCEL_ECC_MONTGOMERY_255) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES +#endif + +#if defined(PSA_WANT_ECC_MONTGOMERY_448) && \ + !defined(MBEDTLS_PSA_ACCEL_ECC_MONTGOMERY_448) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES +#endif + +#if defined(PSA_WANT_ECC_SECP_R1_192) && \ + !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_192) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_WEIERSTRASS_CURVES +#endif + +#if defined(PSA_WANT_ECC_SECP_R1_224) && \ + !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_224) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_WEIERSTRASS_CURVES +#endif + +#if defined(PSA_WANT_ECC_SECP_R1_256) && \ + !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_256) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_WEIERSTRASS_CURVES +#endif + +#if defined(PSA_WANT_ECC_SECP_R1_384) && \ + !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_384) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_WEIERSTRASS_CURVES +#endif + +#if defined(PSA_WANT_ECC_SECP_R1_521) && \ + !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_521) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_WEIERSTRASS_CURVES +#endif + +#if defined(PSA_WANT_ECC_SECP_K1_192) && \ + !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_K1_192) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_WEIERSTRASS_CURVES +#endif + +#if defined(PSA_WANT_ECC_SECP_K1_224) && \ + !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_K1_224) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_WEIERSTRASS_CURVES +#endif + +#if defined(PSA_WANT_ECC_SECP_K1_256) && \ + !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_K1_256) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_WEIERSTRASS_CURVES +#endif + +/* ECC: algs: is acceleration complete? */ +#if defined(PSA_WANT_ALG_DETERMINISTIC_ECDSA) && \ + !defined(MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS +#endif + +#if defined(PSA_WANT_ALG_ECDH) && \ + !defined(MBEDTLS_PSA_ACCEL_ALG_ECDH) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS +#endif + +#if defined(PSA_WANT_ALG_ECDSA) && \ + !defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS +#endif + +#if defined(PSA_WANT_ALG_JPAKE) && \ + !defined(MBEDTLS_PSA_ACCEL_ALG_JPAKE) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS +#endif + +/* ECC: key types: is acceleration complete? */ +#if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY) && \ + !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_PUBLIC_KEY) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES_BASIC +#endif + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC) && \ + !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_BASIC) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES_BASIC +#endif + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_IMPORT) && \ + !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_IMPORT) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES +#endif + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_EXPORT) && \ + !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_EXPORT) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES +#endif + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE) && \ + !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_GENERATE) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES +#endif + +/* Special case: we don't support cooked key derivation in drivers yet */ +#if defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_DERIVE) +#undef MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_DERIVE +#endif + +/* Note: the condition is always true as DERIVE can't be accelerated yet */ +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE) && \ + !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_DERIVE) +#define MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES +#endif + +/* ECC: curves: enable built-ins as needed. + * + * We need the curve built-in: + * - if it's not accelerated, or + * - if there's a key type with missing acceleration, or + * - if there's a alg with missing acceleration. + */ +#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256) +#if !defined(MBEDTLS_PSA_ACCEL_ECC_BRAINPOOL_P_R1_256) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_ECC_BRAINPOOL_P_R1_256 1 +#define MBEDTLS_ECP_DP_BP256R1_ENABLED +#endif /* missing accel */ +#endif /* PSA_WANT_ECC_BRAINPOOL_P_R1_256 */ + +#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384) +#if !defined(MBEDTLS_PSA_ACCEL_ECC_BRAINPOOL_P_R1_384) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_ECC_BRAINPOOL_P_R1_384 1 +#define MBEDTLS_ECP_DP_BP384R1_ENABLED +#endif /* missing accel */ +#endif /* PSA_WANT_ECC_BRAINPOOL_P_R1_384 */ + +#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512) +#if !defined(MBEDTLS_PSA_ACCEL_ECC_BRAINPOOL_P_R1_512) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_ECC_BRAINPOOL_P_R1_512 1 +#define MBEDTLS_ECP_DP_BP512R1_ENABLED +#endif /* missing accel */ +#endif /* PSA_WANT_ECC_BRAINPOOL_P_R1_512 */ + +#if defined(PSA_WANT_ECC_MONTGOMERY_255) +#if !defined(MBEDTLS_PSA_ACCEL_ECC_MONTGOMERY_255) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_ECC_MONTGOMERY_255 1 +#define MBEDTLS_ECP_DP_CURVE25519_ENABLED +#endif /* missing accel */ +#endif /* PSA_WANT_ECC_MONTGOMERY_255 */ + +#if defined(PSA_WANT_ECC_MONTGOMERY_448) +#if !defined(MBEDTLS_PSA_ACCEL_ECC_MONTGOMERY_448) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_ECC_MONTGOMERY_448 1 +#define MBEDTLS_ECP_DP_CURVE448_ENABLED +#endif /* missing accel */ +#endif /* PSA_WANT_ECC_MONTGOMERY_448 */ + +#if defined(PSA_WANT_ECC_SECP_R1_192) +#if !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_192) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_R1_192 1 +#define MBEDTLS_ECP_DP_SECP192R1_ENABLED +#endif /* missing accel */ +#endif /* PSA_WANT_ECC_SECP_R1_192 */ + +#if defined(PSA_WANT_ECC_SECP_R1_224) +#if !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_224) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_R1_224 1 +#define MBEDTLS_ECP_DP_SECP224R1_ENABLED +#endif /* missing accel */ +#endif /* PSA_WANT_ECC_SECP_R1_224 */ + +#if defined(PSA_WANT_ECC_SECP_R1_256) +#if !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_256) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_R1_256 1 +#define MBEDTLS_ECP_DP_SECP256R1_ENABLED +#endif /* missing accel */ +#endif /* PSA_WANT_ECC_SECP_R1_256 */ + +#if defined(PSA_WANT_ECC_SECP_R1_384) +#if !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_384) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_R1_384 1 +#define MBEDTLS_ECP_DP_SECP384R1_ENABLED +#endif /* missing accel */ +#endif /* PSA_WANT_ECC_SECP_R1_384 */ + +#if defined(PSA_WANT_ECC_SECP_R1_521) +#if !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_521) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_R1_521 1 +#define MBEDTLS_ECP_DP_SECP521R1_ENABLED +#endif /* missing accel */ +#endif /* PSA_WANT_ECC_SECP_R1_521 */ + +#if defined(PSA_WANT_ECC_SECP_K1_192) +#if !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_K1_192) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_K1_192 1 +#define MBEDTLS_ECP_DP_SECP192K1_ENABLED +#endif /* missing accel */ +#endif /* PSA_WANT_ECC_SECP_K1_192 */ + +#if defined(PSA_WANT_ECC_SECP_K1_224) +#if !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_K1_224) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_K1_224 1 +#define MBEDTLS_ECP_DP_SECP224K1_ENABLED +/* https://github.com/Mbed-TLS/mbedtls/issues/3541 */ +#error "SECP224K1 is buggy via the PSA API in Mbed TLS." +#endif /* missing accel */ +#endif /* PSA_WANT_ECC_SECP_K1_224 */ + +#if defined(PSA_WANT_ECC_SECP_K1_256) +#if !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_K1_256) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_K1_256 1 +#define MBEDTLS_ECP_DP_SECP256K1_ENABLED +#endif /* missing accel */ +#endif /* PSA_WANT_ECC_SECP_K1_256 */ + +/* ECC: algs: enable built-ins as needed. + * + * We need the alg built-in: + * - if it's not accelerated, or + * - if there's a relevant curve (see below) with missing acceleration, or + * - if there's a key type among (public, basic) with missing acceleration. + * + * Relevant curves are: + * - all curves for ECDH + * - Weierstrass curves for (deterministic) ECDSA + * - secp256r1 for EC J-PAKE + */ +#if defined(PSA_WANT_ALG_DETERMINISTIC_ECDSA) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_WEIERSTRASS_CURVES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES_BASIC) +#define MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA 1 +#define MBEDTLS_ECDSA_DETERMINISTIC +#define MBEDTLS_HMAC_DRBG_C +#define MBEDTLS_MD_C +#define MBEDTLS_ECDSA_C +#define MBEDTLS_ECP_C +#define MBEDTLS_BIGNUM_C +#define MBEDTLS_ASN1_PARSE_C +#define MBEDTLS_ASN1_WRITE_C +#endif /* missing accel */ +#endif /* PSA_WANT_ALG_DETERMINISTIC_ECDSA */ + +#if defined(PSA_WANT_ALG_ECDH) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_ECDH) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES_BASIC) +#define MBEDTLS_PSA_BUILTIN_ALG_ECDH 1 +#define MBEDTLS_ECDH_C +#define MBEDTLS_ECP_C +#define MBEDTLS_BIGNUM_C +#endif /* missing accel */ +#endif /* PSA_WANT_ALG_ECDH */ + +#if defined(PSA_WANT_ALG_ECDSA) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_WEIERSTRASS_CURVES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES_BASIC) +#define MBEDTLS_PSA_BUILTIN_ALG_ECDSA 1 +#define MBEDTLS_ECDSA_C +#define MBEDTLS_ECP_C +#define MBEDTLS_BIGNUM_C +#define MBEDTLS_ASN1_PARSE_C +#define MBEDTLS_ASN1_WRITE_C +#endif /* missing accel */ +#endif /* PSA_WANT_ALG_ECDSA */ + +#if defined(PSA_WANT_ALG_JPAKE) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_JPAKE) || \ + !defined(MBEDTLS_PSA_ACCEL_ECC_SECP_R1_256) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_KEY_TYPES_BASIC) +#define MBEDTLS_PSA_BUILTIN_PAKE 1 +#define MBEDTLS_PSA_BUILTIN_ALG_JPAKE 1 +#define MBEDTLS_ECP_DP_SECP256R1_ENABLED +#define MBEDTLS_BIGNUM_C +#define MBEDTLS_ECP_C +#define MBEDTLS_ECJPAKE_C +#endif /* missing accel */ +#endif /* PSA_WANT_ALG_JPAKE */ + +/* ECC: key types: enable built-ins as needed. + * + * We need the key type built-in: + * - if it's not accelerated, or + * - if there's a curve with missing acceleration, or + * - only for public/basic: if there's an alg with missing acceleration. + */ +#if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_PUBLIC_KEY) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY 1 +#define MBEDTLS_ECP_LIGHT +#define MBEDTLS_BIGNUM_C +#endif /* missing accel */ +#endif /* PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY */ + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_BASIC) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_ALGS) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_BASIC 1 +#define MBEDTLS_ECP_LIGHT +#define MBEDTLS_BIGNUM_C +#endif /* missing accel */ +#endif /* PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC */ + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_IMPORT) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_IMPORT) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_IMPORT 1 +#define MBEDTLS_ECP_LIGHT +#define MBEDTLS_BIGNUM_C +#endif /* missing accel */ +#endif /* PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_IMPORT */ + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_EXPORT) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_EXPORT) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_EXPORT 1 +#define MBEDTLS_ECP_C +#define MBEDTLS_BIGNUM_C +#endif /* missing accel */ +#endif /* PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_EXPORT */ + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_GENERATE) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_GENERATE 1 +#define MBEDTLS_ECP_C +#define MBEDTLS_BIGNUM_C +#endif /* missing accel */ +#endif /* PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE */ + +/* Note: the condition is always true as DERIVE can't be accelerated yet */ +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_DERIVE) || \ + defined(MBEDTLS_PSA_ECC_ACCEL_INCOMPLETE_CURVES) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_DERIVE 1 +#define MBEDTLS_ECP_LIGHT +#define MBEDTLS_BIGNUM_C +#endif /* missing accel */ +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_DERIVE */ + +/* End of ECC section */ + +#if defined(PSA_WANT_ALG_FFDH) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_FFDH) +#define MBEDTLS_PSA_BUILTIN_ALG_FFDH 1 +#define MBEDTLS_BIGNUM_C +#endif /* !MBEDTLS_PSA_ACCEL_ALG_FFDH */ +#endif /* PSA_WANT_ALG_FFDH */ + +#if defined(PSA_WANT_ALG_HKDF) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_HKDF) +/* + * The PSA implementation has its own implementation of HKDF, separate from + * hkdf.c. No need to enable MBEDTLS_HKDF_C here. + */ +#define MBEDTLS_PSA_BUILTIN_ALG_HMAC 1 +#define MBEDTLS_PSA_BUILTIN_ALG_HKDF 1 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_HKDF */ +#endif /* PSA_WANT_ALG_HKDF */ + +#if defined(PSA_WANT_ALG_HKDF_EXTRACT) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_HKDF_EXTRACT) +/* + * The PSA implementation has its own implementation of HKDF, separate from + * hkdf.c. No need to enable MBEDTLS_HKDF_C here. + */ +#define MBEDTLS_PSA_BUILTIN_ALG_HMAC 1 +#define MBEDTLS_PSA_BUILTIN_ALG_HKDF_EXTRACT 1 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_HKDF_EXTRACT */ +#endif /* PSA_WANT_ALG_HKDF_EXTRACT */ + +#if defined(PSA_WANT_ALG_HKDF_EXPAND) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_HKDF_EXPAND) +/* + * The PSA implementation has its own implementation of HKDF, separate from + * hkdf.c. No need to enable MBEDTLS_HKDF_C here. + */ +#define MBEDTLS_PSA_BUILTIN_ALG_HMAC 1 +#define MBEDTLS_PSA_BUILTIN_ALG_HKDF_EXPAND 1 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_HKDF_EXPAND */ +#endif /* PSA_WANT_ALG_HKDF_EXPAND */ + +#if defined(PSA_WANT_ALG_HMAC) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_HMAC) +#define MBEDTLS_PSA_BUILTIN_ALG_HMAC 1 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_HMAC */ +#endif /* PSA_WANT_ALG_HMAC */ + +#if defined(PSA_WANT_ALG_MD5) && !defined(MBEDTLS_PSA_ACCEL_ALG_MD5) +#define MBEDTLS_PSA_BUILTIN_ALG_MD5 1 +#define MBEDTLS_MD5_C +#endif + +#if defined(PSA_WANT_ALG_RIPEMD160) && !defined(MBEDTLS_PSA_ACCEL_ALG_RIPEMD160) +#define MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160 1 +#define MBEDTLS_RIPEMD160_C +#endif + +#if defined(PSA_WANT_ALG_RSA_OAEP) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_RSA_OAEP) +#define MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP 1 +#define MBEDTLS_RSA_C +#define MBEDTLS_BIGNUM_C +#define MBEDTLS_OID_C +#define MBEDTLS_PKCS1_V21 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_RSA_OAEP */ +#endif /* PSA_WANT_ALG_RSA_OAEP */ + +#if defined(PSA_WANT_ALG_RSA_PKCS1V15_CRYPT) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_CRYPT) +#define MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT 1 +#define MBEDTLS_RSA_C +#define MBEDTLS_BIGNUM_C +#define MBEDTLS_OID_C +#define MBEDTLS_PKCS1_V15 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_CRYPT */ +#endif /* PSA_WANT_ALG_RSA_PKCS1V15_CRYPT */ + +#if defined(PSA_WANT_ALG_RSA_PKCS1V15_SIGN) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN) +#define MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN 1 +#define MBEDTLS_RSA_C +#define MBEDTLS_BIGNUM_C +#define MBEDTLS_OID_C +#define MBEDTLS_PKCS1_V15 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN */ +#endif /* PSA_WANT_ALG_RSA_PKCS1V15_SIGN */ + +#if defined(PSA_WANT_ALG_RSA_PSS) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PSS) +#define MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS 1 +#define MBEDTLS_RSA_C +#define MBEDTLS_BIGNUM_C +#define MBEDTLS_OID_C +#define MBEDTLS_PKCS1_V21 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_RSA_PSS */ +#endif /* PSA_WANT_ALG_RSA_PSS */ + +#if defined(PSA_WANT_ALG_SHA_1) && !defined(MBEDTLS_PSA_ACCEL_ALG_SHA_1) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA_1 1 +#define MBEDTLS_SHA1_C +#endif + +#if defined(PSA_WANT_ALG_SHA_224) && !defined(MBEDTLS_PSA_ACCEL_ALG_SHA_224) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA_224 1 +#define MBEDTLS_SHA224_C +#endif + +#if defined(PSA_WANT_ALG_SHA_256) && !defined(MBEDTLS_PSA_ACCEL_ALG_SHA_256) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA_256 1 +#define MBEDTLS_SHA256_C +#endif + +#if defined(PSA_WANT_ALG_SHA_384) && !defined(MBEDTLS_PSA_ACCEL_ALG_SHA_384) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA_384 1 +#define MBEDTLS_SHA384_C +#endif + +#if defined(PSA_WANT_ALG_SHA_512) && !defined(MBEDTLS_PSA_ACCEL_ALG_SHA_512) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA_512 1 +#define MBEDTLS_SHA512_C +#endif + +#if defined(PSA_WANT_ALG_SHA3_224) && !defined(MBEDTLS_PSA_ACCEL_ALG_SHA3_224) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA3_224 1 +#define MBEDTLS_SHA3_C +#endif + +#if defined(PSA_WANT_ALG_SHA3_256) && !defined(MBEDTLS_PSA_ACCEL_ALG_SHA3_256) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA3_256 1 +#define MBEDTLS_SHA3_C +#endif + +#if defined(PSA_WANT_ALG_SHA3_384) && !defined(MBEDTLS_PSA_ACCEL_ALG_SHA3_384) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA3_384 1 +#define MBEDTLS_SHA3_C +#endif + +#if defined(PSA_WANT_ALG_SHA3_512) && !defined(MBEDTLS_PSA_ACCEL_ALG_SHA3_512) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA3_512 1 +#define MBEDTLS_SHA3_C +#endif + +#if defined(PSA_WANT_ALG_PBKDF2_HMAC) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_PBKDF2_HMAC) +#define MBEDTLS_PSA_BUILTIN_ALG_PBKDF2_HMAC 1 +#define PSA_HAVE_SOFT_PBKDF2_HMAC 1 +#if !defined(MBEDTLS_PSA_ACCEL_ALG_HMAC) +#define MBEDTLS_PSA_BUILTIN_ALG_HMAC 1 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_HMAC */ +#endif /* !MBEDTLS_PSA_BUILTIN_ALG_PBKDF2_HMAC */ +#endif /* PSA_WANT_ALG_PBKDF2_HMAC */ + +#if defined(PSA_WANT_ALG_TLS12_PRF) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_TLS12_PRF) +#define MBEDTLS_PSA_BUILTIN_ALG_TLS12_PRF 1 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_TLS12_PRF */ +#endif /* PSA_WANT_ALG_TLS12_PRF */ + +#if defined(PSA_WANT_ALG_TLS12_PSK_TO_MS) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_TLS12_PSK_TO_MS) +#define MBEDTLS_PSA_BUILTIN_ALG_TLS12_PSK_TO_MS 1 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_TLS12_PSK_TO_MS */ +#endif /* PSA_WANT_ALG_TLS12_PSK_TO_MS */ + +#if defined(PSA_WANT_ALG_TLS12_ECJPAKE_TO_PMS) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_TLS12_ECJPAKE_TO_PMS) +#define MBEDTLS_PSA_BUILTIN_ALG_TLS12_ECJPAKE_TO_PMS 1 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_TLS12_ECJPAKE_TO_PMS */ +#endif /* PSA_WANT_ALG_TLS12_ECJPAKE_TO_PMS */ + +#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_IMPORT) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_IMPORT) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_IMPORT 1 +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_IMPORT */ +#endif /* PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_IMPORT */ + +#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_EXPORT) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_EXPORT) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT 1 +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_EXPORT */ +#endif /* PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_EXPORT */ + +#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_GENERATE) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE 1 +#define MBEDTLS_GENPRIME +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_GENERATE */ +#endif /* PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE */ + +#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_BASIC) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_BASIC) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_BASIC 1 +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_BASIC */ +#endif /* PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_BASIC */ + +#if defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_IMPORT) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_DH_KEY_PAIR_IMPORT) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_IMPORT 1 +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_DH_KEY_PAIR_IMPORT */ +#endif /* PSA_WANT_KEY_TYPE_DH_KEY_PAIR_IMPORT */ + +#if defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_EXPORT) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_DH_KEY_PAIR_EXPORT) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_EXPORT 1 +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_DH_KEY_PAIR_EXPORT */ +#endif /* PSA_WANT_KEY_TYPE_DH_KEY_PAIR_EXPORT */ + +#if defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_GENERATE) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_DH_KEY_PAIR_GENERATE) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_GENERATE 1 +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_DH_KEY_PAIR_GENERATE */ +#endif /* PSA_WANT_KEY_TYPE_DH_KEY_PAIR_GENERATE */ + +#if defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_BASIC) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_DH_KEY_PAIR_BASIC) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_BASIC 1 +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_DH_KEY_PAIR_BASIC */ +#endif /* PSA_WANT_KEY_TYPE_DH_KEY_PAIR_BASIC */ + +#if defined(PSA_WANT_KEY_TYPE_DH_PUBLIC_KEY) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_DH_PUBLIC_KEY) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_PUBLIC_KEY 1 +#define MBEDTLS_BIGNUM_C +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_DH_PUBLIC_KEY */ +#endif /* PSA_WANT_KEY_TYPE_DH_PUBLIC_KEY */ + +#if defined(PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_PUBLIC_KEY) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY 1 +#define MBEDTLS_RSA_C +#define MBEDTLS_BIGNUM_C +#define MBEDTLS_OID_C +#define MBEDTLS_PK_PARSE_C +#define MBEDTLS_PK_WRITE_C +#define MBEDTLS_PK_C +#define MBEDTLS_ASN1_PARSE_C +#define MBEDTLS_ASN1_WRITE_C +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_PUBLIC_KEY */ +#endif /* PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY */ + +/* If any of the block modes are requested that don't have an + * associated HW assist, define PSA_HAVE_SOFT_BLOCK_MODE for checking + * in the block cipher key types. */ +#if (defined(PSA_WANT_ALG_CTR) && !defined(MBEDTLS_PSA_ACCEL_ALG_CTR)) || \ + (defined(PSA_WANT_ALG_CFB) && !defined(MBEDTLS_PSA_ACCEL_ALG_CFB)) || \ + (defined(PSA_WANT_ALG_OFB) && !defined(MBEDTLS_PSA_ACCEL_ALG_OFB)) || \ + defined(PSA_WANT_ALG_ECB_NO_PADDING) || \ + (defined(PSA_WANT_ALG_CBC_NO_PADDING) && \ + !defined(MBEDTLS_PSA_ACCEL_ALG_CBC_NO_PADDING)) || \ + (defined(PSA_WANT_ALG_CBC_PKCS7) && \ + !defined(MBEDTLS_PSA_ACCEL_ALG_CBC_PKCS7)) || \ + (defined(PSA_WANT_ALG_CMAC) && !defined(MBEDTLS_PSA_ACCEL_ALG_CMAC)) +#define PSA_HAVE_SOFT_BLOCK_MODE 1 +#endif + +#if (defined(PSA_WANT_ALG_GCM) && !defined(MBEDTLS_PSA_ACCEL_ALG_GCM)) || \ + (defined(PSA_WANT_ALG_CCM) && !defined(MBEDTLS_PSA_ACCEL_ALG_CCM)) +#define PSA_HAVE_SOFT_BLOCK_AEAD 1 +#endif + +#if defined(PSA_WANT_ALG_PBKDF2_AES_CMAC_PRF_128) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_PBKDF2_AES_CMAC_PRF_128) +#define MBEDTLS_PSA_BUILTIN_ALG_PBKDF2_AES_CMAC_PRF_128 1 +#define PSA_HAVE_SOFT_PBKDF2_CMAC 1 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_PBKDF2_AES_CMAC_PRF_128 */ +#endif /* PSA_WANT_ALG_PBKDF2_AES_CMAC_PRF_128 */ + +#if defined(PSA_WANT_KEY_TYPE_AES) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_AES) +#define PSA_HAVE_SOFT_KEY_TYPE_AES 1 +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_AES */ +#if defined(PSA_HAVE_SOFT_KEY_TYPE_AES) || \ + defined(PSA_HAVE_SOFT_BLOCK_MODE) || \ + defined(PSA_HAVE_SOFT_BLOCK_AEAD) || \ + defined(PSA_HAVE_SOFT_PBKDF2_CMAC) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_AES 1 +#define MBEDTLS_AES_C +#endif /* PSA_HAVE_SOFT_KEY_TYPE_AES || PSA_HAVE_SOFT_BLOCK_MODE */ +#endif /* PSA_WANT_KEY_TYPE_AES */ + +#if defined(PSA_WANT_KEY_TYPE_ARIA) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ARIA) +#define PSA_HAVE_SOFT_KEY_TYPE_ARIA 1 +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_ARIA */ +#if defined(PSA_HAVE_SOFT_KEY_TYPE_ARIA) || \ + defined(PSA_HAVE_SOFT_BLOCK_MODE) || \ + defined(PSA_HAVE_SOFT_BLOCK_AEAD) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ARIA 1 +#define MBEDTLS_ARIA_C +#endif /* PSA_HAVE_SOFT_KEY_TYPE_ARIA || PSA_HAVE_SOFT_BLOCK_MODE */ +#endif /* PSA_WANT_KEY_TYPE_ARIA */ + +#if defined(PSA_WANT_KEY_TYPE_CAMELLIA) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_CAMELLIA) +#define PSA_HAVE_SOFT_KEY_TYPE_CAMELLIA 1 +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_CAMELLIA */ +#if defined(PSA_HAVE_SOFT_KEY_TYPE_CAMELLIA) || \ + defined(PSA_HAVE_SOFT_BLOCK_MODE) || \ + defined(PSA_HAVE_SOFT_BLOCK_AEAD) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_CAMELLIA 1 +#define MBEDTLS_CAMELLIA_C +#endif /* PSA_HAVE_SOFT_KEY_TYPE_CAMELLIA || PSA_HAVE_SOFT_BLOCK_MODE */ +#endif /* PSA_WANT_KEY_TYPE_CAMELLIA */ + +#if defined(PSA_WANT_KEY_TYPE_DES) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_DES) +#define PSA_HAVE_SOFT_KEY_TYPE_DES 1 +#endif /* !MBEDTLS_PSA_ACCEL_KEY_TYPE_DES */ +#if defined(PSA_HAVE_SOFT_KEY_TYPE_DES) || \ + defined(PSA_HAVE_SOFT_BLOCK_MODE) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DES 1 +#define MBEDTLS_DES_C +#endif /*PSA_HAVE_SOFT_KEY_TYPE_DES || PSA_HAVE_SOFT_BLOCK_MODE */ +#endif /* PSA_WANT_KEY_TYPE_DES */ + +#if defined(PSA_WANT_KEY_TYPE_CHACHA20) +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_CHACHA20) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_CHACHA20 1 +#define MBEDTLS_CHACHA20_C +#endif /*!MBEDTLS_PSA_ACCEL_KEY_TYPE_CHACHA20 */ +#endif /* PSA_WANT_KEY_TYPE_CHACHA20 */ + +/* If any of the software block ciphers are selected, define + * PSA_HAVE_SOFT_BLOCK_CIPHER, which can be used in any of these + * situations. */ +#if defined(PSA_HAVE_SOFT_KEY_TYPE_AES) || \ + defined(PSA_HAVE_SOFT_KEY_TYPE_ARIA) || \ + defined(PSA_HAVE_SOFT_KEY_TYPE_DES) || \ + defined(PSA_HAVE_SOFT_KEY_TYPE_CAMELLIA) +#define PSA_HAVE_SOFT_BLOCK_CIPHER 1 +#endif + +#if defined(PSA_WANT_ALG_STREAM_CIPHER) +#define MBEDTLS_PSA_BUILTIN_ALG_STREAM_CIPHER 1 +#endif /* PSA_WANT_ALG_STREAM_CIPHER */ + +#if defined(PSA_WANT_ALG_CBC_MAC) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_CBC_MAC) +#error "CBC-MAC is not yet supported via the PSA API in Mbed TLS." +#define MBEDTLS_PSA_BUILTIN_ALG_CBC_MAC 1 +#endif /* !MBEDTLS_PSA_ACCEL_ALG_CBC_MAC */ +#endif /* PSA_WANT_ALG_CBC_MAC */ + +#if defined(PSA_WANT_ALG_CMAC) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_CMAC) || \ + defined(PSA_HAVE_SOFT_BLOCK_CIPHER) || \ + defined(PSA_HAVE_SOFT_PBKDF2_CMAC) +#define MBEDTLS_PSA_BUILTIN_ALG_CMAC 1 +#define MBEDTLS_CMAC_C +#endif /* !MBEDTLS_PSA_ACCEL_ALG_CMAC */ +#endif /* PSA_WANT_ALG_CMAC */ + +#if defined(PSA_HAVE_SOFT_PBKDF2_HMAC) || \ + defined(PSA_HAVE_SOFT_PBKDF2_CMAC) +#define PSA_HAVE_SOFT_PBKDF2 1 +#endif /* PSA_HAVE_SOFT_PBKDF2_HMAC || PSA_HAVE_SOFT_PBKDF2_CMAC */ + +#if defined(PSA_WANT_ALG_CTR) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_CTR) || \ + defined(PSA_HAVE_SOFT_BLOCK_CIPHER) +#define MBEDTLS_PSA_BUILTIN_ALG_CTR 1 +#define MBEDTLS_CIPHER_MODE_CTR +#endif +#endif /* PSA_WANT_ALG_CTR */ + +#if defined(PSA_WANT_ALG_CFB) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_CFB) || \ + defined(PSA_HAVE_SOFT_BLOCK_CIPHER) +#define MBEDTLS_PSA_BUILTIN_ALG_CFB 1 +#define MBEDTLS_CIPHER_MODE_CFB +#endif +#endif /* PSA_WANT_ALG_CFB */ + +#if defined(PSA_WANT_ALG_OFB) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_OFB) || \ + defined(PSA_HAVE_SOFT_BLOCK_CIPHER) +#define MBEDTLS_PSA_BUILTIN_ALG_OFB 1 +#define MBEDTLS_CIPHER_MODE_OFB +#endif +#endif /* PSA_WANT_ALG_OFB */ + +#if defined(PSA_WANT_ALG_ECB_NO_PADDING) && \ + !defined(MBEDTLS_PSA_ACCEL_ALG_ECB_NO_PADDING) +#define MBEDTLS_PSA_BUILTIN_ALG_ECB_NO_PADDING 1 +#endif + +#if defined(PSA_WANT_ALG_CBC_NO_PADDING) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_CBC_NO_PADDING) || \ + defined(PSA_HAVE_SOFT_BLOCK_CIPHER) +#define MBEDTLS_CIPHER_MODE_CBC +#define MBEDTLS_PSA_BUILTIN_ALG_CBC_NO_PADDING 1 +#endif +#endif /* PSA_WANT_ALG_CBC_NO_PADDING */ + +#if defined(PSA_WANT_ALG_CBC_PKCS7) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_CBC_PKCS7) || \ + defined(PSA_HAVE_SOFT_BLOCK_CIPHER) +#define MBEDTLS_CIPHER_MODE_CBC +#define MBEDTLS_PSA_BUILTIN_ALG_CBC_PKCS7 1 +#define MBEDTLS_CIPHER_PADDING_PKCS7 +#endif +#endif /* PSA_WANT_ALG_CBC_PKCS7 */ + +#if defined(PSA_WANT_ALG_CCM) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_CCM) || \ + defined(PSA_HAVE_SOFT_KEY_TYPE_AES) || \ + defined(PSA_HAVE_SOFT_KEY_TYPE_ARIA) || \ + defined(PSA_HAVE_SOFT_KEY_TYPE_CAMELLIA) +#define MBEDTLS_PSA_BUILTIN_ALG_CCM 1 +#define MBEDTLS_PSA_BUILTIN_ALG_CCM_STAR_NO_TAG 1 +#define MBEDTLS_CCM_C +#endif +#endif /* PSA_WANT_ALG_CCM */ + +#if defined(PSA_WANT_ALG_GCM) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_GCM) || \ + defined(PSA_HAVE_SOFT_KEY_TYPE_AES) || \ + defined(PSA_HAVE_SOFT_KEY_TYPE_ARIA) || \ + defined(PSA_HAVE_SOFT_KEY_TYPE_CAMELLIA) +#define MBEDTLS_PSA_BUILTIN_ALG_GCM 1 +#define MBEDTLS_GCM_C +#endif +#endif /* PSA_WANT_ALG_GCM */ + +#if defined(PSA_WANT_ALG_CHACHA20_POLY1305) +#if !defined(MBEDTLS_PSA_ACCEL_ALG_CHACHA20_POLY1305) +#if defined(PSA_WANT_KEY_TYPE_CHACHA20) +#define MBEDTLS_CHACHAPOLY_C +#define MBEDTLS_CHACHA20_C +#define MBEDTLS_POLY1305_C +#define MBEDTLS_PSA_BUILTIN_ALG_CHACHA20_POLY1305 1 +#endif /* PSA_WANT_KEY_TYPE_CHACHA20 */ +#endif /* !MBEDTLS_PSA_ACCEL_ALG_CHACHA20_POLY1305 */ +#endif /* PSA_WANT_ALG_CHACHA20_POLY1305 */ + +#endif /* MBEDTLS_CONFIG_ADJUST_LEGACY_FROM_PSA_H */ diff --git a/include/mbedtls/config_adjust_psa_from_legacy.h b/include/mbedtls/config_adjust_psa_from_legacy.h new file mode 100644 index 0000000..c31a462 --- /dev/null +++ b/include/mbedtls/config_adjust_psa_from_legacy.h @@ -0,0 +1,334 @@ +/** + * \file mbedtls/config_adjust_psa_from_legacy.h + * \brief Adjust PSA configuration: construct PSA configuration from legacy + * + * When MBEDTLS_PSA_CRYPTO_CONFIG is disabled, we automatically enable + * cryptographic mechanisms through the PSA interface when the corresponding + * legacy mechanism is enabled. In many cases, this just enables the PSA + * wrapper code around the legacy implementation, but we also do this for + * some mechanisms where PSA has its own independent implementation so + * that high-level modules that can use either cryptographic API have the + * same feature set in both cases. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CONFIG_ADJUST_PSA_FROM_LEGACY_H +#define MBEDTLS_CONFIG_ADJUST_PSA_FROM_LEGACY_H + +/* + * Ensure PSA_WANT_* defines are setup properly if MBEDTLS_PSA_CRYPTO_CONFIG + * is not defined + */ + +#if defined(MBEDTLS_CCM_C) +#define MBEDTLS_PSA_BUILTIN_ALG_CCM 1 +#define MBEDTLS_PSA_BUILTIN_ALG_CCM_STAR_NO_TAG 1 +#define PSA_WANT_ALG_CCM 1 +#define PSA_WANT_ALG_CCM_STAR_NO_TAG 1 +#endif /* MBEDTLS_CCM_C */ + +#if defined(MBEDTLS_CMAC_C) +#define MBEDTLS_PSA_BUILTIN_ALG_CMAC 1 +#define PSA_WANT_ALG_CMAC 1 +#endif /* MBEDTLS_CMAC_C */ + +#if defined(MBEDTLS_ECDH_C) +#define MBEDTLS_PSA_BUILTIN_ALG_ECDH 1 +#define PSA_WANT_ALG_ECDH 1 +#endif /* MBEDTLS_ECDH_C */ + +#if defined(MBEDTLS_ECDSA_C) +#define MBEDTLS_PSA_BUILTIN_ALG_ECDSA 1 +#define PSA_WANT_ALG_ECDSA 1 +#define PSA_WANT_ALG_ECDSA_ANY 1 + +// Only add in DETERMINISTIC support if ECDSA is also enabled +#if defined(MBEDTLS_ECDSA_DETERMINISTIC) +#define MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA 1 +#define PSA_WANT_ALG_DETERMINISTIC_ECDSA 1 +#endif /* MBEDTLS_ECDSA_DETERMINISTIC */ + +#endif /* MBEDTLS_ECDSA_C */ + +#if defined(MBEDTLS_ECP_C) +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC 1 +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_IMPORT 1 +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_EXPORT 1 +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE 1 +/* Normally we wouldn't enable this because it's not implemented in ecp.c, + * but since it used to be available any time ECP_C was enabled, let's enable + * it anyway for the sake of backwards compatibility */ +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_BASIC 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_IMPORT 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_EXPORT 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_GENERATE 1 +/* See comment for PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE above. */ +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_DERIVE 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY 1 +#define PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY 1 +#endif /* MBEDTLS_ECP_C */ + +#if defined(MBEDTLS_DHM_C) +#define PSA_WANT_KEY_TYPE_DH_KEY_PAIR_BASIC 1 +#define PSA_WANT_KEY_TYPE_DH_KEY_PAIR_IMPORT 1 +#define PSA_WANT_KEY_TYPE_DH_KEY_PAIR_EXPORT 1 +#define PSA_WANT_KEY_TYPE_DH_KEY_PAIR_GENERATE 1 +#define PSA_WANT_KEY_TYPE_DH_PUBLIC_KEY 1 +#define PSA_WANT_ALG_FFDH 1 +#define PSA_WANT_DH_FAMILY_RFC7919 1 +#define MBEDTLS_PSA_BUILTIN_ALG_FFDH 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_BASIC 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_IMPORT 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_EXPORT 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_GENERATE 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_PUBLIC_KEY 1 +#endif /* MBEDTLS_DHM_C */ + +#if defined(MBEDTLS_GCM_C) +#define MBEDTLS_PSA_BUILTIN_ALG_GCM 1 +#define PSA_WANT_ALG_GCM 1 +#endif /* MBEDTLS_GCM_C */ + +/* Enable PSA HKDF algorithm if mbedtls HKDF is supported. + * PSA HKDF EXTRACT and PSA HKDF EXPAND have minimal cost when + * PSA HKDF is enabled, so enable both algorithms together + * with PSA HKDF. */ +#if defined(MBEDTLS_HKDF_C) +#define MBEDTLS_PSA_BUILTIN_ALG_HMAC 1 +#define PSA_WANT_ALG_HMAC 1 +#define MBEDTLS_PSA_BUILTIN_ALG_HKDF 1 +#define PSA_WANT_ALG_HKDF 1 +#define MBEDTLS_PSA_BUILTIN_ALG_HKDF_EXTRACT 1 +#define PSA_WANT_ALG_HKDF_EXTRACT 1 +#define MBEDTLS_PSA_BUILTIN_ALG_HKDF_EXPAND 1 +#define PSA_WANT_ALG_HKDF_EXPAND 1 +#endif /* MBEDTLS_HKDF_C */ + +#define MBEDTLS_PSA_BUILTIN_ALG_HMAC 1 +#define PSA_WANT_ALG_HMAC 1 +#define PSA_WANT_KEY_TYPE_HMAC 1 + +#if defined(MBEDTLS_MD_C) +#define MBEDTLS_PSA_BUILTIN_ALG_TLS12_PRF 1 +#define PSA_WANT_ALG_TLS12_PRF 1 +#define MBEDTLS_PSA_BUILTIN_ALG_TLS12_PSK_TO_MS 1 +#define PSA_WANT_ALG_TLS12_PSK_TO_MS 1 +#endif /* MBEDTLS_MD_C */ + +#if defined(MBEDTLS_MD5_C) +#define MBEDTLS_PSA_BUILTIN_ALG_MD5 1 +#define PSA_WANT_ALG_MD5 1 +#endif + +#if defined(MBEDTLS_ECJPAKE_C) +#define MBEDTLS_PSA_BUILTIN_PAKE 1 +#define MBEDTLS_PSA_BUILTIN_ALG_JPAKE 1 +#define PSA_WANT_ALG_JPAKE 1 +#endif + +#if defined(MBEDTLS_RIPEMD160_C) +#define MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160 1 +#define PSA_WANT_ALG_RIPEMD160 1 +#endif + +#if defined(MBEDTLS_RSA_C) +#if defined(MBEDTLS_PKCS1_V15) +#define MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT 1 +#define PSA_WANT_ALG_RSA_PKCS1V15_CRYPT 1 +#define MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN 1 +#define PSA_WANT_ALG_RSA_PKCS1V15_SIGN 1 +#define PSA_WANT_ALG_RSA_PKCS1V15_SIGN_RAW 1 +#endif /* MBEDTLS_PKCS1_V15 */ +#if defined(MBEDTLS_PKCS1_V21) +#define MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP 1 +#define PSA_WANT_ALG_RSA_OAEP 1 +#define MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS 1 +#define PSA_WANT_ALG_RSA_PSS 1 +#endif /* MBEDTLS_PKCS1_V21 */ +#if defined(MBEDTLS_GENPRIME) +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE 1 +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE 1 +#endif /* MBEDTLS_GENPRIME */ +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_BASIC 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_IMPORT 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT 1 +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_BASIC 1 +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_IMPORT 1 +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_EXPORT 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY 1 +#define PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY 1 +#endif /* MBEDTLS_RSA_C */ + +#if defined(MBEDTLS_SHA1_C) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA_1 1 +#define PSA_WANT_ALG_SHA_1 1 +#endif + +#if defined(MBEDTLS_SHA224_C) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA_224 1 +#define PSA_WANT_ALG_SHA_224 1 +#endif + +#if defined(MBEDTLS_SHA256_C) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA_256 1 +#define PSA_WANT_ALG_SHA_256 1 +#endif + +#if defined(MBEDTLS_SHA384_C) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA_384 1 +#define PSA_WANT_ALG_SHA_384 1 +#endif + +#if defined(MBEDTLS_SHA512_C) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA_512 1 +#define PSA_WANT_ALG_SHA_512 1 +#endif + +#if defined(MBEDTLS_SHA3_C) +#define MBEDTLS_PSA_BUILTIN_ALG_SHA3_224 1 +#define MBEDTLS_PSA_BUILTIN_ALG_SHA3_256 1 +#define MBEDTLS_PSA_BUILTIN_ALG_SHA3_384 1 +#define MBEDTLS_PSA_BUILTIN_ALG_SHA3_512 1 +#define PSA_WANT_ALG_SHA3_224 1 +#define PSA_WANT_ALG_SHA3_256 1 +#define PSA_WANT_ALG_SHA3_384 1 +#define PSA_WANT_ALG_SHA3_512 1 +#endif + +#if defined(MBEDTLS_AES_C) +#define PSA_WANT_KEY_TYPE_AES 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_AES 1 +#endif + +#if defined(MBEDTLS_ARIA_C) +#define PSA_WANT_KEY_TYPE_ARIA 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ARIA 1 +#endif + +#if defined(MBEDTLS_CAMELLIA_C) +#define PSA_WANT_KEY_TYPE_CAMELLIA 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_CAMELLIA 1 +#endif + +#if defined(MBEDTLS_DES_C) +#define PSA_WANT_KEY_TYPE_DES 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DES 1 +#endif + +#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_256) +#define MBEDTLS_PSA_BUILTIN_ALG_TLS12_ECJPAKE_TO_PMS 1 +#define PSA_WANT_ALG_TLS12_ECJPAKE_TO_PMS 1 +#endif + +#if defined(MBEDTLS_CHACHA20_C) +#define PSA_WANT_KEY_TYPE_CHACHA20 1 +#define PSA_WANT_ALG_STREAM_CIPHER 1 +#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_CHACHA20 1 +#define MBEDTLS_PSA_BUILTIN_ALG_STREAM_CIPHER 1 +#if defined(MBEDTLS_CHACHAPOLY_C) +#define PSA_WANT_ALG_CHACHA20_POLY1305 1 +#define MBEDTLS_PSA_BUILTIN_ALG_CHACHA20_POLY1305 1 +#endif +#endif + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +#define MBEDTLS_PSA_BUILTIN_ALG_CBC_NO_PADDING 1 +#define PSA_WANT_ALG_CBC_NO_PADDING 1 +#if defined(MBEDTLS_CIPHER_PADDING_PKCS7) +#define MBEDTLS_PSA_BUILTIN_ALG_CBC_PKCS7 1 +#define PSA_WANT_ALG_CBC_PKCS7 1 +#endif +#endif + +#if defined(MBEDTLS_AES_C) || defined(MBEDTLS_DES_C) || \ + defined(MBEDTLS_ARIA_C) || defined(MBEDTLS_CAMELLIA_C) +#define MBEDTLS_PSA_BUILTIN_ALG_ECB_NO_PADDING 1 +#define PSA_WANT_ALG_ECB_NO_PADDING 1 +#endif + +#if defined(MBEDTLS_CIPHER_MODE_CFB) +#define MBEDTLS_PSA_BUILTIN_ALG_CFB 1 +#define PSA_WANT_ALG_CFB 1 +#endif + +#if defined(MBEDTLS_CIPHER_MODE_CTR) +#define MBEDTLS_PSA_BUILTIN_ALG_CTR 1 +#define PSA_WANT_ALG_CTR 1 +#endif + +#if defined(MBEDTLS_CIPHER_MODE_OFB) +#define MBEDTLS_PSA_BUILTIN_ALG_OFB 1 +#define PSA_WANT_ALG_OFB 1 +#endif + +#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) +#define MBEDTLS_PSA_BUILTIN_ECC_BRAINPOOL_P_R1_256 1 +#define PSA_WANT_ECC_BRAINPOOL_P_R1_256 1 +#endif + +#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) +#define MBEDTLS_PSA_BUILTIN_ECC_BRAINPOOL_P_R1_384 1 +#define PSA_WANT_ECC_BRAINPOOL_P_R1_384 1 +#endif + +#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) +#define MBEDTLS_PSA_BUILTIN_ECC_BRAINPOOL_P_R1_512 1 +#define PSA_WANT_ECC_BRAINPOOL_P_R1_512 1 +#endif + +#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) +#define MBEDTLS_PSA_BUILTIN_ECC_MONTGOMERY_255 1 +#define PSA_WANT_ECC_MONTGOMERY_255 1 +#endif + +#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) +#define MBEDTLS_PSA_BUILTIN_ECC_MONTGOMERY_448 1 +#define PSA_WANT_ECC_MONTGOMERY_448 1 +#endif + +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_R1_192 1 +#define PSA_WANT_ECC_SECP_R1_192 1 +#endif + +#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_R1_224 1 +#define PSA_WANT_ECC_SECP_R1_224 1 +#endif + +#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_R1_256 1 +#define PSA_WANT_ECC_SECP_R1_256 1 +#endif + +#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_R1_384 1 +#define PSA_WANT_ECC_SECP_R1_384 1 +#endif + +#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_R1_521 1 +#define PSA_WANT_ECC_SECP_R1_521 1 +#endif + +#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_K1_192 1 +#define PSA_WANT_ECC_SECP_K1_192 1 +#endif + +/* SECP224K1 is buggy via the PSA API (https://github.com/Mbed-TLS/mbedtls/issues/3541) */ +#if 0 && defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_K1_224 1 +#define PSA_WANT_ECC_SECP_K1_224 1 +#endif + +#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) +#define MBEDTLS_PSA_BUILTIN_ECC_SECP_K1_256 1 +#define PSA_WANT_ECC_SECP_K1_256 1 +#endif + +#endif /* MBEDTLS_CONFIG_ADJUST_PSA_FROM_LEGACY_H */ diff --git a/include/mbedtls/config_adjust_psa_superset_legacy.h b/include/mbedtls/config_adjust_psa_superset_legacy.h new file mode 100644 index 0000000..3a55c3f --- /dev/null +++ b/include/mbedtls/config_adjust_psa_superset_legacy.h @@ -0,0 +1,142 @@ +/** + * \file mbedtls/config_adjust_psa_superset_legacy.h + * \brief Adjust PSA configuration: automatic enablement from legacy + * + * To simplify some edge cases, we automatically enable certain cryptographic + * mechanisms in the PSA API if they are enabled in the legacy API. The general + * idea is that if legacy module M uses mechanism A internally, and A has + * both a legacy and a PSA implementation, we enable A through PSA whenever + * it's enabled through legacy. This facilitates the transition to PSA + * implementations of A for users of M. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CONFIG_ADJUST_PSA_SUPERSET_LEGACY_H +#define MBEDTLS_CONFIG_ADJUST_PSA_SUPERSET_LEGACY_H + +/****************************************************************/ +/* Hashes that are built in are also enabled in PSA. + * This simplifies dependency declarations especially + * for modules that obey MBEDTLS_USE_PSA_CRYPTO. */ +/****************************************************************/ + +#if defined(MBEDTLS_MD5_C) +#define PSA_WANT_ALG_MD5 1 +#endif + +#if defined(MBEDTLS_RIPEMD160_C) +#define PSA_WANT_ALG_RIPEMD160 1 +#endif + +#if defined(MBEDTLS_SHA1_C) +#define PSA_WANT_ALG_SHA_1 1 +#endif + +#if defined(MBEDTLS_SHA224_C) +#define PSA_WANT_ALG_SHA_224 1 +#endif + +#if defined(MBEDTLS_SHA256_C) +#define PSA_WANT_ALG_SHA_256 1 +#endif + +#if defined(MBEDTLS_SHA384_C) +#define PSA_WANT_ALG_SHA_384 1 +#endif + +#if defined(MBEDTLS_SHA512_C) +#define PSA_WANT_ALG_SHA_512 1 +#endif + +#if defined(MBEDTLS_SHA3_C) +#define PSA_WANT_ALG_SHA3_224 1 +#define PSA_WANT_ALG_SHA3_256 1 +#define PSA_WANT_ALG_SHA3_384 1 +#define PSA_WANT_ALG_SHA3_512 1 +#endif + +/* Ensure that the PSA's supported curves (PSA_WANT_ECC_xxx) are always a + * superset of the builtin ones (MBEDTLS_ECP_DP_xxx). */ +#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) +#if !defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256) +#define PSA_WANT_ECC_BRAINPOOL_P_R1_256 1 +#endif /* PSA_WANT_ECC_BRAINPOOL_P_R1_256 */ +#endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) +#if !defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384) +#define PSA_WANT_ECC_BRAINPOOL_P_R1_384 1 +#endif /* PSA_WANT_ECC_BRAINPOOL_P_R1_384 */ +#endif /*MBEDTLS_ECP_DP_BP384R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) +#if !defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512) +#define PSA_WANT_ECC_BRAINPOOL_P_R1_512 1 +#endif /* PSA_WANT_ECC_BRAINPOOL_P_R1_512 */ +#endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) +#if !defined(PSA_WANT_ECC_MONTGOMERY_255) +#define PSA_WANT_ECC_MONTGOMERY_255 1 +#endif /* PSA_WANT_ECC_MONTGOMERY_255 */ +#endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) +#if !defined(PSA_WANT_ECC_MONTGOMERY_448) +#define PSA_WANT_ECC_MONTGOMERY_448 1 +#endif /* PSA_WANT_ECC_MONTGOMERY_448 */ +#endif /* MBEDTLS_ECP_DP_CURVE448_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) +#if !defined(PSA_WANT_ECC_SECP_R1_192) +#define PSA_WANT_ECC_SECP_R1_192 1 +#endif /* PSA_WANT_ECC_SECP_R1_192 */ +#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) +#if !defined(PSA_WANT_ECC_SECP_R1_224) +#define PSA_WANT_ECC_SECP_R1_224 1 +#endif /* PSA_WANT_ECC_SECP_R1_224 */ +#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) +#if !defined(PSA_WANT_ECC_SECP_R1_256) +#define PSA_WANT_ECC_SECP_R1_256 1 +#endif /* PSA_WANT_ECC_SECP_R1_256 */ +#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) +#if !defined(PSA_WANT_ECC_SECP_R1_384) +#define PSA_WANT_ECC_SECP_R1_384 1 +#endif /* PSA_WANT_ECC_SECP_R1_384 */ +#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) +#if !defined(PSA_WANT_ECC_SECP_R1_521) +#define PSA_WANT_ECC_SECP_R1_521 1 +#endif /* PSA_WANT_ECC_SECP_R1_521 */ +#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) +#if !defined(PSA_WANT_ECC_SECP_K1_192) +#define PSA_WANT_ECC_SECP_K1_192 1 +#endif /* PSA_WANT_ECC_SECP_K1_192 */ +#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */ + +/* SECP224K1 is buggy via the PSA API (https://github.com/Mbed-TLS/mbedtls/issues/3541) */ +#if 0 && defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) +#if !defined(PSA_WANT_ECC_SECP_K1_224) +#define PSA_WANT_ECC_SECP_K1_224 1 +#endif /* PSA_WANT_ECC_SECP_K1_224 */ +#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */ + +#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) +#if !defined(PSA_WANT_ECC_SECP_K1_256) +#define PSA_WANT_ECC_SECP_K1_256 1 +#endif /* PSA_WANT_ECC_SECP_K1_256 */ +#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */ + +#endif /* MBEDTLS_CONFIG_ADJUST_PSA_SUPERSET_LEGACY_H */ diff --git a/include/mbedtls/config_adjust_ssl.h b/include/mbedtls/config_adjust_ssl.h new file mode 100644 index 0000000..8415f3e --- /dev/null +++ b/include/mbedtls/config_adjust_ssl.h @@ -0,0 +1,76 @@ +/** + * \file mbedtls/config_adjust_ssl.h + * \brief Adjust TLS configuration + * + * Automatically enable certain dependencies. Generally, MBEDLTS_xxx + * configurations need to be explicitly enabled by the user: enabling + * MBEDTLS_xxx_A but not MBEDTLS_xxx_B when A requires B results in a + * compilation error. However, we do automatically enable certain options + * in some circumstances. One case is if MBEDTLS_xxx_B is an internal option + * used to identify parts of a module that are used by other module, and we + * don't want to make the symbol MBEDTLS_xxx_B part of the public API. + * Another case is if A didn't depend on B in earlier versions, and we + * want to use B in A but we need to preserve backward compatibility with + * configurations that explicitly activate MBEDTLS_xxx_A but not + * MBEDTLS_xxx_B. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CONFIG_ADJUST_SSL_H +#define MBEDTLS_CONFIG_ADJUST_SSL_H + +/* The following blocks make it easier to disable all of TLS, + * or of TLS 1.2 or 1.3 or DTLS, without having to manually disable all + * key exchanges, options and extensions related to them. */ + +#if !defined(MBEDTLS_SSL_TLS_C) +#undef MBEDTLS_SSL_CLI_C +#undef MBEDTLS_SSL_SRV_C +#undef MBEDTLS_SSL_PROTO_TLS1_3 +#undef MBEDTLS_SSL_PROTO_TLS1_2 +#undef MBEDTLS_SSL_PROTO_DTLS +#endif + +#if !defined(MBEDTLS_SSL_PROTO_DTLS) +#undef MBEDTLS_SSL_DTLS_ANTI_REPLAY +#undef MBEDTLS_SSL_DTLS_CONNECTION_ID +#undef MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT +#undef MBEDTLS_SSL_DTLS_HELLO_VERIFY +#undef MBEDTLS_SSL_DTLS_SRTP +#undef MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE +#endif + +#if !defined(MBEDTLS_SSL_PROTO_TLS1_2) +#undef MBEDTLS_SSL_ENCRYPT_THEN_MAC +#undef MBEDTLS_SSL_EXTENDED_MASTER_SECRET +#undef MBEDTLS_SSL_RENEGOTIATION +#undef MBEDTLS_KEY_EXCHANGE_RSA_ENABLED +#undef MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED +#undef MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED +#undef MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED +#undef MBEDTLS_KEY_EXCHANGE_PSK_ENABLED +#undef MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED +#undef MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED +#undef MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED +#undef MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED +#undef MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED +#undef MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED +#endif + +#if !defined(MBEDTLS_SSL_PROTO_TLS1_3) +#undef MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED +#undef MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED +#undef MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED +#undef MBEDTLS_SSL_EARLY_DATA +#endif + +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ + (defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)) +#define MBEDTLS_SSL_TLS1_2_SOME_ECC +#endif + +#endif /* MBEDTLS_CONFIG_ADJUST_SSL_H */ diff --git a/include/mbedtls/config_adjust_x509.h b/include/mbedtls/config_adjust_x509.h new file mode 100644 index 0000000..346c8ae --- /dev/null +++ b/include/mbedtls/config_adjust_x509.h @@ -0,0 +1,25 @@ +/** + * \file mbedtls/config_adjust_x509.h + * \brief Adjust X.509 configuration + * + * Automatically enable certain dependencies. Generally, MBEDLTS_xxx + * configurations need to be explicitly enabled by the user: enabling + * MBEDTLS_xxx_A but not MBEDTLS_xxx_B when A requires B results in a + * compilation error. However, we do automatically enable certain options + * in some circumstances. One case is if MBEDTLS_xxx_B is an internal option + * used to identify parts of a module that are used by other module, and we + * don't want to make the symbol MBEDTLS_xxx_B part of the public API. + * Another case is if A didn't depend on B in earlier versions, and we + * want to use B in A but we need to preserve backward compatibility with + * configurations that explicitly activate MBEDTLS_xxx_A but not + * MBEDTLS_xxx_B. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CONFIG_ADJUST_X509_H +#define MBEDTLS_CONFIG_ADJUST_X509_H + +#endif /* MBEDTLS_CONFIG_ADJUST_X509_H */ diff --git a/include/mbedtls/config_psa.h b/include/mbedtls/config_psa.h new file mode 100644 index 0000000..17da61b --- /dev/null +++ b/include/mbedtls/config_psa.h @@ -0,0 +1,55 @@ +/** + * \file mbedtls/config_psa.h + * \brief PSA crypto configuration options (set of defines) + * + * This set of compile-time options takes settings defined in + * include/mbedtls/mbedtls_config.h and include/psa/crypto_config.h and uses + * those definitions to define symbols used in the library code. + * + * Users and integrators should not edit this file, please edit + * include/mbedtls/mbedtls_config.h for MBEDTLS_XXX settings or + * include/psa/crypto_config.h for PSA_WANT_XXX settings. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CONFIG_PSA_H +#define MBEDTLS_CONFIG_PSA_H + +#include "psa/crypto_legacy.h" + +#include "psa/crypto_adjust_config_synonyms.h" + +#include "mbedtls/config_adjust_psa_superset_legacy.h" + +#if defined(MBEDTLS_PSA_CRYPTO_CONFIG) + +/* Require built-in implementations based on PSA requirements */ + +/* We need this to have a complete list of requirements + * before we deduce what built-ins are required. */ +#include "psa/crypto_adjust_config_key_pair_types.h" + +#include "mbedtls/config_adjust_legacy_from_psa.h" + +#else /* MBEDTLS_PSA_CRYPTO_CONFIG */ + +/* Infer PSA requirements from Mbed TLS capabilities */ + +#include "mbedtls/config_adjust_psa_from_legacy.h" + +/* Hopefully the file above will have enabled keypair symbols in a consistent + * way, but including this here fixes them if that wasn't the case. */ +#include "psa/crypto_adjust_config_key_pair_types.h" + +#endif /* MBEDTLS_PSA_CRYPTO_CONFIG */ + +#if defined(PSA_WANT_ALG_JPAKE) +#define PSA_WANT_ALG_SOME_PAKE 1 +#endif + +#include "psa/crypto_adjust_auto_enabled.h" + +#endif /* MBEDTLS_CONFIG_PSA_H */ diff --git a/include/mbedtls/constant_time.h b/include/mbedtls/constant_time.h new file mode 100644 index 0000000..d31bff6 --- /dev/null +++ b/include/mbedtls/constant_time.h @@ -0,0 +1,36 @@ +/** + * Constant-time functions + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CONSTANT_TIME_H +#define MBEDTLS_CONSTANT_TIME_H + +#include <stddef.h> + +/** Constant-time buffer comparison without branches. + * + * This is equivalent to the standard memcmp function, but is likely to be + * compiled to code using bitwise operations rather than a branch, such that + * the time taken is constant w.r.t. the data pointed to by \p a and \p b, + * and w.r.t. whether \p a and \p b are equal or not. It is not constant-time + * w.r.t. \p n . + * + * This function can be used to write constant-time code by replacing branches + * with bit operations using masks. + * + * \param a Pointer to the first buffer, containing at least \p n bytes. May not be NULL. + * \param b Pointer to the second buffer, containing at least \p n bytes. May not be NULL. + * \param n The number of bytes to compare. + * + * \return Zero if the contents of the two buffers are the same, + * otherwise non-zero. + */ +int mbedtls_ct_memcmp(const void *a, + const void *b, + size_t n); + +#endif /* MBEDTLS_CONSTANT_TIME_H */ diff --git a/include/mbedtls/ctr_drbg.h b/include/mbedtls/ctr_drbg.h new file mode 100644 index 0000000..d1f19e6 --- /dev/null +++ b/include/mbedtls/ctr_drbg.h @@ -0,0 +1,564 @@ +/** + * \file ctr_drbg.h + * + * \brief This file contains definitions and functions for the + * CTR_DRBG pseudorandom generator. + * + * CTR_DRBG is a standardized way of building a PRNG from a block-cipher + * in counter mode operation, as defined in <em>NIST SP 800-90A: + * Recommendation for Random Number Generation Using Deterministic Random + * Bit Generators</em>. + * + * The Mbed TLS implementation of CTR_DRBG uses AES-256 (default) or AES-128 + * (if \c MBEDTLS_CTR_DRBG_USE_128_BIT_KEY is enabled at compile time) + * as the underlying block cipher, with a derivation function. + * + * The security strength as defined in NIST SP 800-90A is + * 128 bits when AES-128 is used (\c MBEDTLS_CTR_DRBG_USE_128_BIT_KEY enabled) + * and 256 bits otherwise, provided that #MBEDTLS_CTR_DRBG_ENTROPY_LEN is + * kept at its default value (and not overridden in mbedtls_config.h) and that the + * DRBG instance is set up with default parameters. + * See the documentation of mbedtls_ctr_drbg_seed() for more + * information. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_CTR_DRBG_H +#define MBEDTLS_CTR_DRBG_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/aes.h" +#include "entropy.h" + +#if defined(MBEDTLS_THREADING_C) +#include "mbedtls/threading.h" +#endif + +/** The entropy source failed. */ +#define MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED -0x0034 +/** The requested random buffer length is too big. */ +#define MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG -0x0036 +/** The input (entropy + additional data) is too large. */ +#define MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG -0x0038 +/** Read or write error in file. */ +#define MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR -0x003A + +#define MBEDTLS_CTR_DRBG_BLOCKSIZE 16 /**< The block size used by the cipher. */ + +#if defined(MBEDTLS_CTR_DRBG_USE_128_BIT_KEY) +#define MBEDTLS_CTR_DRBG_KEYSIZE 16 +/**< The key size in bytes used by the cipher. + * + * Compile-time choice: 16 bytes (128 bits) + * because #MBEDTLS_CTR_DRBG_USE_128_BIT_KEY is enabled. + */ +#else +#define MBEDTLS_CTR_DRBG_KEYSIZE 32 +/**< The key size in bytes used by the cipher. + * + * Compile-time choice: 32 bytes (256 bits) + * because \c MBEDTLS_CTR_DRBG_USE_128_BIT_KEY is disabled. + */ +#endif + +#define MBEDTLS_CTR_DRBG_KEYBITS (MBEDTLS_CTR_DRBG_KEYSIZE * 8) /**< The key size for the DRBG operation, in bits. */ +#define MBEDTLS_CTR_DRBG_SEEDLEN (MBEDTLS_CTR_DRBG_KEYSIZE + MBEDTLS_CTR_DRBG_BLOCKSIZE) /**< The seed length, calculated as (counter + AES key). */ + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in mbedtls_config.h or define them using the compiler command + * line. + * \{ + */ + +/** \def MBEDTLS_CTR_DRBG_ENTROPY_LEN + * + * \brief The amount of entropy used per seed by default, in bytes. + */ +#if !defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) +#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR) +/** This is 48 bytes because the entropy module uses SHA-512. + */ +#define MBEDTLS_CTR_DRBG_ENTROPY_LEN 48 + +#else /* MBEDTLS_ENTROPY_SHA512_ACCUMULATOR */ + +/** This is 32 bytes because the entropy module uses SHA-256. + */ +#if !defined(MBEDTLS_CTR_DRBG_USE_128_BIT_KEY) +/** \warning To achieve a 256-bit security strength, you must pass a nonce + * to mbedtls_ctr_drbg_seed(). + */ +#endif /* !defined(MBEDTLS_CTR_DRBG_USE_128_BIT_KEY) */ +#define MBEDTLS_CTR_DRBG_ENTROPY_LEN 32 +#endif /* MBEDTLS_ENTROPY_SHA512_ACCUMULATOR */ +#endif /* !defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) */ + +#if !defined(MBEDTLS_CTR_DRBG_RESEED_INTERVAL) +#define MBEDTLS_CTR_DRBG_RESEED_INTERVAL 10000 +/**< The interval before reseed is performed by default. */ +#endif + +#if !defined(MBEDTLS_CTR_DRBG_MAX_INPUT) +#define MBEDTLS_CTR_DRBG_MAX_INPUT 256 +/**< The maximum number of additional input Bytes. */ +#endif + +#if !defined(MBEDTLS_CTR_DRBG_MAX_REQUEST) +#define MBEDTLS_CTR_DRBG_MAX_REQUEST 1024 +/**< The maximum number of requested Bytes per call. */ +#endif + +#if !defined(MBEDTLS_CTR_DRBG_MAX_SEED_INPUT) +#define MBEDTLS_CTR_DRBG_MAX_SEED_INPUT 384 +/**< The maximum size of seed or reseed buffer in bytes. */ +#endif + +/** \} name SECTION: Module settings */ + +#define MBEDTLS_CTR_DRBG_PR_OFF 0 +/**< Prediction resistance is disabled. */ +#define MBEDTLS_CTR_DRBG_PR_ON 1 +/**< Prediction resistance is enabled. */ + +#ifdef __cplusplus +extern "C" { +#endif + +#if MBEDTLS_CTR_DRBG_ENTROPY_LEN >= MBEDTLS_CTR_DRBG_KEYSIZE * 3 / 2 +/** The default length of the nonce read from the entropy source. + * + * This is \c 0 because a single read from the entropy source is sufficient + * to include a nonce. + * See the documentation of mbedtls_ctr_drbg_seed() for more information. + */ +#define MBEDTLS_CTR_DRBG_ENTROPY_NONCE_LEN 0 +#else +/** The default length of the nonce read from the entropy source. + * + * This is half of the default entropy length because a single read from + * the entropy source does not provide enough material to form a nonce. + * See the documentation of mbedtls_ctr_drbg_seed() for more information. + */ +#define MBEDTLS_CTR_DRBG_ENTROPY_NONCE_LEN (MBEDTLS_CTR_DRBG_ENTROPY_LEN + 1) / 2 +#endif + +/** + * \brief The CTR_DRBG context structure. + */ +typedef struct mbedtls_ctr_drbg_context { + unsigned char MBEDTLS_PRIVATE(counter)[16]; /*!< The counter (V). */ + int MBEDTLS_PRIVATE(reseed_counter); /*!< The reseed counter. + * This is the number of requests that have + * been made since the last (re)seeding, + * minus one. + * Before the initial seeding, this field + * contains the amount of entropy in bytes + * to use as a nonce for the initial seeding, + * or -1 if no nonce length has been explicitly + * set (see mbedtls_ctr_drbg_set_nonce_len()). + */ + int MBEDTLS_PRIVATE(prediction_resistance); /*!< This determines whether prediction + resistance is enabled, that is + whether to systematically reseed before + each random generation. */ + size_t MBEDTLS_PRIVATE(entropy_len); /*!< The amount of entropy grabbed on each + seed or reseed operation, in bytes. */ + int MBEDTLS_PRIVATE(reseed_interval); /*!< The reseed interval. + * This is the maximum number of requests + * that can be made between reseedings. */ + + mbedtls_aes_context MBEDTLS_PRIVATE(aes_ctx); /*!< The AES context. */ + + /* + * Callbacks (Entropy) + */ + int(*MBEDTLS_PRIVATE(f_entropy))(void *, unsigned char *, size_t); + /*!< The entropy callback function. */ + + void *MBEDTLS_PRIVATE(p_entropy); /*!< The context for the entropy function. */ + +#if defined(MBEDTLS_THREADING_C) + /* Invariant: the mutex is initialized if and only if f_entropy != NULL. + * This means that the mutex is initialized during the initial seeding + * in mbedtls_ctr_drbg_seed() and freed in mbedtls_ctr_drbg_free(). + * + * Note that this invariant may change without notice. Do not rely on it + * and do not access the mutex directly in application code. + */ + mbedtls_threading_mutex_t MBEDTLS_PRIVATE(mutex); +#endif +} +mbedtls_ctr_drbg_context; + +/** + * \brief This function initializes the CTR_DRBG context, + * and prepares it for mbedtls_ctr_drbg_seed() + * or mbedtls_ctr_drbg_free(). + * + * \note The reseed interval is + * #MBEDTLS_CTR_DRBG_RESEED_INTERVAL by default. + * You can override it by calling + * mbedtls_ctr_drbg_set_reseed_interval(). + * + * \param ctx The CTR_DRBG context to initialize. + */ +void mbedtls_ctr_drbg_init(mbedtls_ctr_drbg_context *ctx); + +/** + * \brief This function seeds and sets up the CTR_DRBG + * entropy source for future reseeds. + * + * A typical choice for the \p f_entropy and \p p_entropy parameters is + * to use the entropy module: + * - \p f_entropy is mbedtls_entropy_func(); + * - \p p_entropy is an instance of ::mbedtls_entropy_context initialized + * with mbedtls_entropy_init() (which registers the platform's default + * entropy sources). + * + * The entropy length is #MBEDTLS_CTR_DRBG_ENTROPY_LEN by default. + * You can override it by calling mbedtls_ctr_drbg_set_entropy_len(). + * + * The entropy nonce length is: + * - \c 0 if the entropy length is at least 3/2 times the entropy length, + * which guarantees that the security strength is the maximum permitted + * by the key size and entropy length according to NIST SP 800-90A §10.2.1; + * - Half the entropy length otherwise. + * You can override it by calling mbedtls_ctr_drbg_set_nonce_len(). + * With the default entropy length, the entropy nonce length is + * #MBEDTLS_CTR_DRBG_ENTROPY_NONCE_LEN. + * + * You can provide a nonce and personalization string in addition to the + * entropy source, to make this instantiation as unique as possible. + * See SP 800-90A §8.6.7 for more details about nonces. + * + * The _seed_material_ value passed to the derivation function in + * the CTR_DRBG Instantiate Process described in NIST SP 800-90A §10.2.1.3.2 + * is the concatenation of the following strings: + * - A string obtained by calling \p f_entropy function for the entropy + * length. + */ +#if MBEDTLS_CTR_DRBG_ENTROPY_NONCE_LEN == 0 +/** + * - If mbedtls_ctr_drbg_set_nonce_len() has been called, a string + * obtained by calling \p f_entropy function for the specified length. + */ +#else +/** + * - A string obtained by calling \p f_entropy function for the entropy nonce + * length. If the entropy nonce length is \c 0, this function does not + * make a second call to \p f_entropy. + */ +#endif +#if defined(MBEDTLS_THREADING_C) +/** + * \note When Mbed TLS is built with threading support, + * after this function returns successfully, + * it is safe to call mbedtls_ctr_drbg_random() + * from multiple threads. Other operations, including + * reseeding, are not thread-safe. + */ +#endif /* MBEDTLS_THREADING_C */ +/** + * - The \p custom string. + * + * \note To achieve the nominal security strength permitted + * by CTR_DRBG, the entropy length must be: + * - at least 16 bytes for a 128-bit strength + * (maximum achievable strength when using AES-128); + * - at least 32 bytes for a 256-bit strength + * (maximum achievable strength when using AES-256). + * + * In addition, if you do not pass a nonce in \p custom, + * the sum of the entropy length + * and the entropy nonce length must be: + * - at least 24 bytes for a 128-bit strength + * (maximum achievable strength when using AES-128); + * - at least 48 bytes for a 256-bit strength + * (maximum achievable strength when using AES-256). + * + * \param ctx The CTR_DRBG context to seed. + * It must have been initialized with + * mbedtls_ctr_drbg_init(). + * After a successful call to mbedtls_ctr_drbg_seed(), + * you may not call mbedtls_ctr_drbg_seed() again on + * the same context unless you call + * mbedtls_ctr_drbg_free() and mbedtls_ctr_drbg_init() + * again first. + * After a failed call to mbedtls_ctr_drbg_seed(), + * you must call mbedtls_ctr_drbg_free(). + * \param f_entropy The entropy callback, taking as arguments the + * \p p_entropy context, the buffer to fill, and the + * length of the buffer. + * \p f_entropy is always called with a buffer size + * less than or equal to the entropy length. + * \param p_entropy The entropy context to pass to \p f_entropy. + * \param custom The personalization string. + * This can be \c NULL, in which case the personalization + * string is empty regardless of the value of \p len. + * \param len The length of the personalization string. + * This must be at most + * #MBEDTLS_CTR_DRBG_MAX_SEED_INPUT + * - #MBEDTLS_CTR_DRBG_ENTROPY_LEN. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED on failure. + */ +int mbedtls_ctr_drbg_seed(mbedtls_ctr_drbg_context *ctx, + int (*f_entropy)(void *, unsigned char *, size_t), + void *p_entropy, + const unsigned char *custom, + size_t len); + +/** + * \brief This function resets CTR_DRBG context to the state immediately + * after initial call of mbedtls_ctr_drbg_init(). + * + * \param ctx The CTR_DRBG context to clear. + */ +void mbedtls_ctr_drbg_free(mbedtls_ctr_drbg_context *ctx); + +/** + * \brief This function turns prediction resistance on or off. + * The default value is off. + * + * \note If enabled, entropy is gathered at the beginning of + * every call to mbedtls_ctr_drbg_random_with_add() + * or mbedtls_ctr_drbg_random(). + * Only use this if your entropy source has sufficient + * throughput. + * + * \param ctx The CTR_DRBG context. + * \param resistance #MBEDTLS_CTR_DRBG_PR_ON or #MBEDTLS_CTR_DRBG_PR_OFF. + */ +void mbedtls_ctr_drbg_set_prediction_resistance(mbedtls_ctr_drbg_context *ctx, + int resistance); + +/** + * \brief This function sets the amount of entropy grabbed on each + * seed or reseed. + * + * The default value is #MBEDTLS_CTR_DRBG_ENTROPY_LEN. + * + * \note The security strength of CTR_DRBG is bounded by the + * entropy length. Thus: + * - When using AES-256 + * (\c MBEDTLS_CTR_DRBG_USE_128_BIT_KEY is disabled, + * which is the default), + * \p len must be at least 32 (in bytes) + * to achieve a 256-bit strength. + * - When using AES-128 + * (\c MBEDTLS_CTR_DRBG_USE_128_BIT_KEY is enabled) + * \p len must be at least 16 (in bytes) + * to achieve a 128-bit strength. + * + * \param ctx The CTR_DRBG context. + * \param len The amount of entropy to grab, in bytes. + * This must be at most #MBEDTLS_CTR_DRBG_MAX_SEED_INPUT + * and at most the maximum length accepted by the + * entropy function that is set in the context. + */ +void mbedtls_ctr_drbg_set_entropy_len(mbedtls_ctr_drbg_context *ctx, + size_t len); + +/** + * \brief This function sets the amount of entropy grabbed + * as a nonce for the initial seeding. + * + * Call this function before calling mbedtls_ctr_drbg_seed() to read + * a nonce from the entropy source during the initial seeding. + * + * \param ctx The CTR_DRBG context. + * \param len The amount of entropy to grab for the nonce, in bytes. + * This must be at most #MBEDTLS_CTR_DRBG_MAX_SEED_INPUT + * and at most the maximum length accepted by the + * entropy function that is set in the context. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG if \p len is + * more than #MBEDTLS_CTR_DRBG_MAX_SEED_INPUT. + * \return #MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED + * if the initial seeding has already taken place. + */ +int mbedtls_ctr_drbg_set_nonce_len(mbedtls_ctr_drbg_context *ctx, + size_t len); + +/** + * \brief This function sets the reseed interval. + * + * The reseed interval is the number of calls to mbedtls_ctr_drbg_random() + * or mbedtls_ctr_drbg_random_with_add() after which the entropy function + * is called again. + * + * The default value is #MBEDTLS_CTR_DRBG_RESEED_INTERVAL. + * + * \param ctx The CTR_DRBG context. + * \param interval The reseed interval. + */ +void mbedtls_ctr_drbg_set_reseed_interval(mbedtls_ctr_drbg_context *ctx, + int interval); + +/** + * \brief This function reseeds the CTR_DRBG context, that is + * extracts data from the entropy source. + * + * \note This function is not thread-safe. It is not safe + * to call this function if another thread might be + * concurrently obtaining random numbers from the same + * context or updating or reseeding the same context. + * + * \param ctx The CTR_DRBG context. + * \param additional Additional data to add to the state. Can be \c NULL. + * \param len The length of the additional data. + * This must be less than + * #MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - \c entropy_len + * where \c entropy_len is the entropy length + * configured for the context. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED on failure. + */ +int mbedtls_ctr_drbg_reseed(mbedtls_ctr_drbg_context *ctx, + const unsigned char *additional, size_t len); + +/** + * \brief This function updates the state of the CTR_DRBG context. + * + * \note This function is not thread-safe. It is not safe + * to call this function if another thread might be + * concurrently obtaining random numbers from the same + * context or updating or reseeding the same context. + * + * \param ctx The CTR_DRBG context. + * \param additional The data to update the state with. This must not be + * \c NULL unless \p add_len is \c 0. + * \param add_len Length of \p additional in bytes. This must be at + * most #MBEDTLS_CTR_DRBG_MAX_SEED_INPUT. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG if + * \p add_len is more than + * #MBEDTLS_CTR_DRBG_MAX_SEED_INPUT. + * \return An error from the underlying AES cipher on failure. + */ +int mbedtls_ctr_drbg_update(mbedtls_ctr_drbg_context *ctx, + const unsigned char *additional, + size_t add_len); + +/** + * \brief This function updates a CTR_DRBG instance with additional + * data and uses it to generate random data. + * + * This function automatically reseeds if the reseed counter is exceeded + * or prediction resistance is enabled. + * + * \note This function is not thread-safe. It is not safe + * to call this function if another thread might be + * concurrently obtaining random numbers from the same + * context or updating or reseeding the same context. + * + * \param p_rng The CTR_DRBG context. This must be a pointer to a + * #mbedtls_ctr_drbg_context structure. + * \param output The buffer to fill. + * \param output_len The length of the buffer in bytes. + * \param additional Additional data to update. Can be \c NULL, in which + * case the additional data is empty regardless of + * the value of \p add_len. + * \param add_len The length of the additional data + * if \p additional is not \c NULL. + * This must be less than #MBEDTLS_CTR_DRBG_MAX_INPUT + * and less than + * #MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - \c entropy_len + * where \c entropy_len is the entropy length + * configured for the context. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED or + * #MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG on failure. + */ +int mbedtls_ctr_drbg_random_with_add(void *p_rng, + unsigned char *output, size_t output_len, + const unsigned char *additional, size_t add_len); + +/** + * \brief This function uses CTR_DRBG to generate random data. + * + * This function automatically reseeds if the reseed counter is exceeded + * or prediction resistance is enabled. + */ +#if defined(MBEDTLS_THREADING_C) +/** + * \note When Mbed TLS is built with threading support, + * it is safe to call mbedtls_ctr_drbg_random() + * from multiple threads. Other operations, including + * reseeding, are not thread-safe. + */ +#endif /* MBEDTLS_THREADING_C */ +/** + * \param p_rng The CTR_DRBG context. This must be a pointer to a + * #mbedtls_ctr_drbg_context structure. + * \param output The buffer to fill. + * \param output_len The length of the buffer in bytes. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED or + * #MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG on failure. + */ +int mbedtls_ctr_drbg_random(void *p_rng, + unsigned char *output, size_t output_len); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief This function writes a seed file. + * + * \param ctx The CTR_DRBG context. + * \param path The name of the file. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR on file error. + * \return #MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED on reseed + * failure. + */ +int mbedtls_ctr_drbg_write_seed_file(mbedtls_ctr_drbg_context *ctx, const char *path); + +/** + * \brief This function reads and updates a seed file. The seed + * is added to this instance. + * + * \param ctx The CTR_DRBG context. + * \param path The name of the file. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR on file error. + * \return #MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED on + * reseed failure. + * \return #MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG if the existing + * seed file is too large. + */ +int mbedtls_ctr_drbg_update_seed_file(mbedtls_ctr_drbg_context *ctx, const char *path); +#endif /* MBEDTLS_FS_IO */ + +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief The CTR_DRBG checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_ctr_drbg_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* ctr_drbg.h */ diff --git a/include/mbedtls/debug.h b/include/mbedtls/debug.h new file mode 100644 index 0000000..0aef2ed --- /dev/null +++ b/include/mbedtls/debug.h @@ -0,0 +1,308 @@ +/** + * \file debug.h + * + * \brief Functions for controlling and providing debug output from the library. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_DEBUG_H +#define MBEDTLS_DEBUG_H + +#include "mbedtls/build_info.h" + +#include "mbedtls/ssl.h" + +#if defined(MBEDTLS_ECP_C) +#include "mbedtls/ecp.h" +#endif + +#if defined(MBEDTLS_DEBUG_C) + +#define MBEDTLS_DEBUG_STRIP_PARENS(...) __VA_ARGS__ + +#define MBEDTLS_SSL_DEBUG_MSG(level, args) \ + mbedtls_debug_print_msg(ssl, level, __FILE__, __LINE__, \ + MBEDTLS_DEBUG_STRIP_PARENS args) + +#define MBEDTLS_SSL_DEBUG_RET(level, text, ret) \ + mbedtls_debug_print_ret(ssl, level, __FILE__, __LINE__, text, ret) + +#define MBEDTLS_SSL_DEBUG_BUF(level, text, buf, len) \ + mbedtls_debug_print_buf(ssl, level, __FILE__, __LINE__, text, buf, len) + +#if defined(MBEDTLS_BIGNUM_C) +#define MBEDTLS_SSL_DEBUG_MPI(level, text, X) \ + mbedtls_debug_print_mpi(ssl, level, __FILE__, __LINE__, text, X) +#endif + +#if defined(MBEDTLS_ECP_C) +#define MBEDTLS_SSL_DEBUG_ECP(level, text, X) \ + mbedtls_debug_print_ecp(ssl, level, __FILE__, __LINE__, text, X) +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +#if !defined(MBEDTLS_X509_REMOVE_INFO) +#define MBEDTLS_SSL_DEBUG_CRT(level, text, crt) \ + mbedtls_debug_print_crt(ssl, level, __FILE__, __LINE__, text, crt) +#else +#define MBEDTLS_SSL_DEBUG_CRT(level, text, crt) do { } while (0) +#endif /* MBEDTLS_X509_REMOVE_INFO */ +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_ECDH_C) +#define MBEDTLS_SSL_DEBUG_ECDH(level, ecdh, attr) \ + mbedtls_debug_printf_ecdh(ssl, level, __FILE__, __LINE__, ecdh, attr) +#endif + +#else /* MBEDTLS_DEBUG_C */ + +#define MBEDTLS_SSL_DEBUG_MSG(level, args) do { } while (0) +#define MBEDTLS_SSL_DEBUG_RET(level, text, ret) do { } while (0) +#define MBEDTLS_SSL_DEBUG_BUF(level, text, buf, len) do { } while (0) +#define MBEDTLS_SSL_DEBUG_MPI(level, text, X) do { } while (0) +#define MBEDTLS_SSL_DEBUG_ECP(level, text, X) do { } while (0) +#define MBEDTLS_SSL_DEBUG_CRT(level, text, crt) do { } while (0) +#define MBEDTLS_SSL_DEBUG_ECDH(level, ecdh, attr) do { } while (0) + +#endif /* MBEDTLS_DEBUG_C */ + +/** + * \def MBEDTLS_PRINTF_ATTRIBUTE + * + * Mark a function as having printf attributes, and thus enable checking + * via -wFormat and other flags. This does nothing on builds with compilers + * that do not support the format attribute + * + * Module: library/debug.c + * Caller: + * + * This module provides debugging functions. + */ +#if defined(__has_attribute) +#if __has_attribute(format) +#if defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 1 +#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check) \ + __attribute__((__format__(gnu_printf, string_index, first_to_check))) +#else /* defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 1 */ +#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check) \ + __attribute__((format(printf, string_index, first_to_check))) +#endif +#else /* __has_attribute(format) */ +#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check) +#endif /* __has_attribute(format) */ +#else /* defined(__has_attribute) */ +#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check) +#endif + +/** + * \def MBEDTLS_PRINTF_SIZET + * + * MBEDTLS_PRINTF_xxx: Due to issues with older window compilers + * and MinGW we need to define the printf specifier for size_t + * and long long per platform. + * + * Module: library/debug.c + * Caller: + * + * This module provides debugging functions. + */ +#if (defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 0) || (defined(_MSC_VER) && _MSC_VER < 1800) + #include <inttypes.h> + #define MBEDTLS_PRINTF_SIZET PRIuPTR + #define MBEDTLS_PRINTF_LONGLONG "I64d" +#else \ + /* (defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 0) || (defined(_MSC_VER) && _MSC_VER < 1800) */ + #define MBEDTLS_PRINTF_SIZET "zu" + #define MBEDTLS_PRINTF_LONGLONG "lld" +#endif \ + /* (defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 0) || (defined(_MSC_VER) && _MSC_VER < 1800) */ + +#if !defined(MBEDTLS_PRINTF_MS_TIME) +#define MBEDTLS_PRINTF_MS_TIME PRId64 +#endif /* MBEDTLS_PRINTF_MS_TIME */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Set the threshold error level to handle globally all debug output. + * Debug messages that have a level over the threshold value are + * discarded. + * (Default value: 0 = No debug ) + * + * \param threshold threshold level of messages to filter on. Messages at a + * higher level will be discarded. + * - Debug levels + * - 0 No debug + * - 1 Error + * - 2 State change + * - 3 Informational + * - 4 Verbose + */ +void mbedtls_debug_set_threshold(int threshold); + +/** + * \brief Print a message to the debug output. This function is always used + * through the MBEDTLS_SSL_DEBUG_MSG() macro, which supplies the ssl + * context, file and line number parameters. + * + * \param ssl SSL context + * \param level error level of the debug message + * \param file file the message has occurred in + * \param line line number the message has occurred at + * \param format format specifier, in printf format + * \param ... variables used by the format specifier + * + * \attention This function is intended for INTERNAL usage within the + * library only. + */ +void mbedtls_debug_print_msg(const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *format, ...) MBEDTLS_PRINTF_ATTRIBUTE(5, 6); + +/** + * \brief Print the return value of a function to the debug output. This + * function is always used through the MBEDTLS_SSL_DEBUG_RET() macro, + * which supplies the ssl context, file and line number parameters. + * + * \param ssl SSL context + * \param level error level of the debug message + * \param file file the error has occurred in + * \param line line number the error has occurred in + * \param text the name of the function that returned the error + * \param ret the return code value + * + * \attention This function is intended for INTERNAL usage within the + * library only. + */ +void mbedtls_debug_print_ret(const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *text, int ret); + +/** + * \brief Output a buffer of size len bytes to the debug output. This function + * is always used through the MBEDTLS_SSL_DEBUG_BUF() macro, + * which supplies the ssl context, file and line number parameters. + * + * \param ssl SSL context + * \param level error level of the debug message + * \param file file the error has occurred in + * \param line line number the error has occurred in + * \param text a name or label for the buffer being dumped. Normally the + * variable or buffer name + * \param buf the buffer to be outputted + * \param len length of the buffer + * + * \attention This function is intended for INTERNAL usage within the + * library only. + */ +void mbedtls_debug_print_buf(const mbedtls_ssl_context *ssl, int level, + const char *file, int line, const char *text, + const unsigned char *buf, size_t len); + +#if defined(MBEDTLS_BIGNUM_C) +/** + * \brief Print a MPI variable to the debug output. This function is always + * used through the MBEDTLS_SSL_DEBUG_MPI() macro, which supplies the + * ssl context, file and line number parameters. + * + * \param ssl SSL context + * \param level error level of the debug message + * \param file file the error has occurred in + * \param line line number the error has occurred in + * \param text a name or label for the MPI being output. Normally the + * variable name + * \param X the MPI variable + * + * \attention This function is intended for INTERNAL usage within the + * library only. + */ +void mbedtls_debug_print_mpi(const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *text, const mbedtls_mpi *X); +#endif + +#if defined(MBEDTLS_ECP_C) +/** + * \brief Print an ECP point to the debug output. This function is always + * used through the MBEDTLS_SSL_DEBUG_ECP() macro, which supplies the + * ssl context, file and line number parameters. + * + * \param ssl SSL context + * \param level error level of the debug message + * \param file file the error has occurred in + * \param line line number the error has occurred in + * \param text a name or label for the ECP point being output. Normally the + * variable name + * \param X the ECP point + * + * \attention This function is intended for INTERNAL usage within the + * library only. + */ +void mbedtls_debug_print_ecp(const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *text, const mbedtls_ecp_point *X); +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) && !defined(MBEDTLS_X509_REMOVE_INFO) +/** + * \brief Print a X.509 certificate structure to the debug output. This + * function is always used through the MBEDTLS_SSL_DEBUG_CRT() macro, + * which supplies the ssl context, file and line number parameters. + * + * \param ssl SSL context + * \param level error level of the debug message + * \param file file the error has occurred in + * \param line line number the error has occurred in + * \param text a name or label for the certificate being output + * \param crt X.509 certificate structure + * + * \attention This function is intended for INTERNAL usage within the + * library only. + */ +void mbedtls_debug_print_crt(const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const char *text, const mbedtls_x509_crt *crt); +#endif + +/* Note: the MBEDTLS_ECDH_C guard here is mandatory because this debug function + only works for the built-in implementation. */ +#if defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDH_OR_ECDHE_ANY_ENABLED) && \ + defined(MBEDTLS_ECDH_C) +typedef enum { + MBEDTLS_DEBUG_ECDH_Q, + MBEDTLS_DEBUG_ECDH_QP, + MBEDTLS_DEBUG_ECDH_Z, +} mbedtls_debug_ecdh_attr; + +/** + * \brief Print a field of the ECDH structure in the SSL context to the debug + * output. This function is always used through the + * MBEDTLS_SSL_DEBUG_ECDH() macro, which supplies the ssl context, file + * and line number parameters. + * + * \param ssl SSL context + * \param level error level of the debug message + * \param file file the error has occurred in + * \param line line number the error has occurred in + * \param ecdh the ECDH context + * \param attr the identifier of the attribute being output + * + * \attention This function is intended for INTERNAL usage within the + * library only. + */ +void mbedtls_debug_printf_ecdh(const mbedtls_ssl_context *ssl, int level, + const char *file, int line, + const mbedtls_ecdh_context *ecdh, + mbedtls_debug_ecdh_attr attr); +#endif /* MBEDTLS_KEY_EXCHANGE_SOME_ECDH_OR_ECDHE_ANY_ENABLED && + MBEDTLS_ECDH_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* debug.h */ diff --git a/include/mbedtls/des.h b/include/mbedtls/des.h new file mode 100644 index 0000000..2b097a1 --- /dev/null +++ b/include/mbedtls/des.h @@ -0,0 +1,385 @@ +/** + * \file des.h + * + * \brief DES block cipher + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + * + */ +#ifndef MBEDTLS_DES_H +#define MBEDTLS_DES_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" +#include "mbedtls/platform_util.h" + +#include <stddef.h> +#include <stdint.h> + +#define MBEDTLS_DES_ENCRYPT 1 +#define MBEDTLS_DES_DECRYPT 0 + +/** The data input has an invalid length. */ +#define MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH -0x0032 + +#define MBEDTLS_DES_KEY_SIZE 8 + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_DES_ALT) +// Regular implementation +// + +/** + * \brief DES context structure + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +typedef struct mbedtls_des_context { + uint32_t MBEDTLS_PRIVATE(sk)[32]; /*!< DES subkeys */ +} +mbedtls_des_context; + +/** + * \brief Triple-DES context structure + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +typedef struct mbedtls_des3_context { + uint32_t MBEDTLS_PRIVATE(sk)[96]; /*!< 3DES subkeys */ +} +mbedtls_des3_context; + +#else /* MBEDTLS_DES_ALT */ +#include "des_alt.h" +#endif /* MBEDTLS_DES_ALT */ + +/** + * \brief Initialize DES context + * + * \param ctx DES context to be initialized + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +void mbedtls_des_init(mbedtls_des_context *ctx); + +/** + * \brief Clear DES context + * + * \param ctx DES context to be cleared + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +void mbedtls_des_free(mbedtls_des_context *ctx); + +/** + * \brief Initialize Triple-DES context + * + * \param ctx DES3 context to be initialized + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +void mbedtls_des3_init(mbedtls_des3_context *ctx); + +/** + * \brief Clear Triple-DES context + * + * \param ctx DES3 context to be cleared + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +void mbedtls_des3_free(mbedtls_des3_context *ctx); + +/** + * \brief Set key parity on the given key to odd. + * + * DES keys are 56 bits long, but each byte is padded with + * a parity bit to allow verification. + * + * \param key 8-byte secret key + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +void mbedtls_des_key_set_parity(unsigned char key[MBEDTLS_DES_KEY_SIZE]); + +/** + * \brief Check that key parity on the given key is odd. + * + * DES keys are 56 bits long, but each byte is padded with + * a parity bit to allow verification. + * + * \param key 8-byte secret key + * + * \return 0 is parity was ok, 1 if parity was not correct. + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_des_key_check_key_parity(const unsigned char key[MBEDTLS_DES_KEY_SIZE]); + +/** + * \brief Check that key is not a weak or semi-weak DES key + * + * \param key 8-byte secret key + * + * \return 0 if no weak key was found, 1 if a weak key was identified. + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_des_key_check_weak(const unsigned char key[MBEDTLS_DES_KEY_SIZE]); + +/** + * \brief DES key schedule (56-bit, encryption) + * + * \param ctx DES context to be initialized + * \param key 8-byte secret key + * + * \return 0 + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_des_setkey_enc(mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE]); + +/** + * \brief DES key schedule (56-bit, decryption) + * + * \param ctx DES context to be initialized + * \param key 8-byte secret key + * + * \return 0 + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_des_setkey_dec(mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE]); + +/** + * \brief Triple-DES key schedule (112-bit, encryption) + * + * \param ctx 3DES context to be initialized + * \param key 16-byte secret key + * + * \return 0 + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_des3_set2key_enc(mbedtls_des3_context *ctx, + const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2]); + +/** + * \brief Triple-DES key schedule (112-bit, decryption) + * + * \param ctx 3DES context to be initialized + * \param key 16-byte secret key + * + * \return 0 + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_des3_set2key_dec(mbedtls_des3_context *ctx, + const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2]); + +/** + * \brief Triple-DES key schedule (168-bit, encryption) + * + * \param ctx 3DES context to be initialized + * \param key 24-byte secret key + * + * \return 0 + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_des3_set3key_enc(mbedtls_des3_context *ctx, + const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3]); + +/** + * \brief Triple-DES key schedule (168-bit, decryption) + * + * \param ctx 3DES context to be initialized + * \param key 24-byte secret key + * + * \return 0 + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_des3_set3key_dec(mbedtls_des3_context *ctx, + const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3]); + +/** + * \brief DES-ECB block encryption/decryption + * + * \param ctx DES context + * \param input 64-bit input block + * \param output 64-bit output block + * + * \return 0 if successful + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_des_crypt_ecb(mbedtls_des_context *ctx, + const unsigned char input[8], + unsigned char output[8]); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/** + * \brief DES-CBC buffer encryption/decryption + * + * \note Upon exit, the content of the IV is updated so that you can + * call the function same function again on the following + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If on the other hand you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * \param ctx DES context + * \param mode MBEDTLS_DES_ENCRYPT or MBEDTLS_DES_DECRYPT + * \param length length of the input data + * \param iv initialization vector (updated after use) + * \param input buffer holding the input data + * \param output buffer holding the output data + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_des_crypt_cbc(mbedtls_des_context *ctx, + int mode, + size_t length, + unsigned char iv[8], + const unsigned char *input, + unsigned char *output); +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +/** + * \brief 3DES-ECB block encryption/decryption + * + * \param ctx 3DES context + * \param input 64-bit input block + * \param output 64-bit output block + * + * \return 0 if successful + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_des3_crypt_ecb(mbedtls_des3_context *ctx, + const unsigned char input[8], + unsigned char output[8]); + +#if defined(MBEDTLS_CIPHER_MODE_CBC) +/** + * \brief 3DES-CBC buffer encryption/decryption + * + * \note Upon exit, the content of the IV is updated so that you can + * call the function same function again on the following + * block(s) of data and get the same result as if it was + * encrypted in one call. This allows a "streaming" usage. + * If on the other hand you need to retain the contents of the + * IV, you should either save it manually or use the cipher + * module instead. + * + * \param ctx 3DES context + * \param mode MBEDTLS_DES_ENCRYPT or MBEDTLS_DES_DECRYPT + * \param length length of the input data + * \param iv initialization vector (updated after use) + * \param input buffer holding the input data + * \param output buffer holding the output data + * + * \return 0 if successful, or MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_des3_crypt_cbc(mbedtls_des3_context *ctx, + int mode, + size_t length, + unsigned char iv[8], + const unsigned char *input, + unsigned char *output); +#endif /* MBEDTLS_CIPHER_MODE_CBC */ + +/** + * \brief Internal function for key expansion. + * (Only exposed to allow overriding it, + * see MBEDTLS_DES_SETKEY_ALT) + * + * \param SK Round keys + * \param key Base key + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers + * instead. + */ +void mbedtls_des_setkey(uint32_t SK[32], + const unsigned char key[MBEDTLS_DES_KEY_SIZE]); + +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +MBEDTLS_CHECK_RETURN_CRITICAL +int mbedtls_des_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* des.h */ diff --git a/include/mbedtls/dhm.h b/include/mbedtls/dhm.h new file mode 100644 index 0000000..fcba3d2 --- /dev/null +++ b/include/mbedtls/dhm.h @@ -0,0 +1,972 @@ +/** + * \file dhm.h + * + * \brief This file contains Diffie-Hellman-Merkle (DHM) key exchange + * definitions and functions. + * + * Diffie-Hellman-Merkle (DHM) key exchange is defined in + * <em>RFC-2631: Diffie-Hellman Key Agreement Method</em> and + * <em>Public-Key Cryptography Standards (PKCS) #3: Diffie + * Hellman Key Agreement Standard</em>. + * + * <em>RFC-3526: More Modular Exponential (MODP) Diffie-Hellman groups for + * Internet Key Exchange (IKE)</em> defines a number of standardized + * Diffie-Hellman groups for IKE. + * + * <em>RFC-5114: Additional Diffie-Hellman Groups for Use with IETF + * Standards</em> defines a number of standardized Diffie-Hellman + * groups that can be used. + * + * \warning The security of the DHM key exchange relies on the proper choice + * of prime modulus - optimally, it should be a safe prime. The usage + * of non-safe primes both decreases the difficulty of the underlying + * discrete logarithm problem and can lead to small subgroup attacks + * leaking private exponent bits when invalid public keys are used + * and not detected. This is especially relevant if the same DHM + * parameters are reused for multiple key exchanges as in static DHM, + * while the criticality of small-subgroup attacks is lower for + * ephemeral DHM. + * + * \warning For performance reasons, the code does neither perform primality + * nor safe primality tests, nor the expensive checks for invalid + * subgroups. Moreover, even if these were performed, non-standardized + * primes cannot be trusted because of the possibility of backdoors + * that can't be effectively checked for. + * + * \warning Diffie-Hellman-Merkle is therefore a security risk when not using + * standardized primes generated using a trustworthy ("nothing up + * my sleeve") method, such as the RFC 3526 / 7919 primes. In the TLS + * protocol, DH parameters need to be negotiated, so using the default + * primes systematically is not always an option. If possible, use + * Elliptic Curve Diffie-Hellman (ECDH), which has better performance, + * and for which the TLS protocol mandates the use of standard + * parameters. + * + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_DHM_H +#define MBEDTLS_DHM_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" +#include "mbedtls/bignum.h" + +/* + * DHM Error codes + */ +/** Bad input parameters. */ +#define MBEDTLS_ERR_DHM_BAD_INPUT_DATA -0x3080 +/** Reading of the DHM parameters failed. */ +#define MBEDTLS_ERR_DHM_READ_PARAMS_FAILED -0x3100 +/** Making of the DHM parameters failed. */ +#define MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED -0x3180 +/** Reading of the public values failed. */ +#define MBEDTLS_ERR_DHM_READ_PUBLIC_FAILED -0x3200 +/** Making of the public value failed. */ +#define MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED -0x3280 +/** Calculation of the DHM secret failed. */ +#define MBEDTLS_ERR_DHM_CALC_SECRET_FAILED -0x3300 +/** The ASN.1 data is not formatted correctly. */ +#define MBEDTLS_ERR_DHM_INVALID_FORMAT -0x3380 +/** Allocation of memory failed. */ +#define MBEDTLS_ERR_DHM_ALLOC_FAILED -0x3400 +/** Read or write of file failed. */ +#define MBEDTLS_ERR_DHM_FILE_IO_ERROR -0x3480 +/** Setting the modulus and generator failed. */ +#define MBEDTLS_ERR_DHM_SET_GROUP_FAILED -0x3580 + +/** Which parameter to access in mbedtls_dhm_get_value(). */ +typedef enum { + MBEDTLS_DHM_PARAM_P, /*!< The prime modulus. */ + MBEDTLS_DHM_PARAM_G, /*!< The generator. */ + MBEDTLS_DHM_PARAM_X, /*!< Our secret value. */ + MBEDTLS_DHM_PARAM_GX, /*!< Our public key = \c G^X mod \c P. */ + MBEDTLS_DHM_PARAM_GY, /*!< The public key of the peer = \c G^Y mod \c P. */ + MBEDTLS_DHM_PARAM_K, /*!< The shared secret = \c G^(XY) mod \c P. */ +} mbedtls_dhm_parameter; + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_DHM_ALT) + +/** + * \brief The DHM context structure. + */ +typedef struct mbedtls_dhm_context { + mbedtls_mpi MBEDTLS_PRIVATE(P); /*!< The prime modulus. */ + mbedtls_mpi MBEDTLS_PRIVATE(G); /*!< The generator. */ + mbedtls_mpi MBEDTLS_PRIVATE(X); /*!< Our secret value. */ + mbedtls_mpi MBEDTLS_PRIVATE(GX); /*!< Our public key = \c G^X mod \c P. */ + mbedtls_mpi MBEDTLS_PRIVATE(GY); /*!< The public key of the peer = \c G^Y mod \c P. */ + mbedtls_mpi MBEDTLS_PRIVATE(K); /*!< The shared secret = \c G^(XY) mod \c P. */ + mbedtls_mpi MBEDTLS_PRIVATE(RP); /*!< The cached value = \c R^2 mod \c P. */ + mbedtls_mpi MBEDTLS_PRIVATE(Vi); /*!< The blinding value. */ + mbedtls_mpi MBEDTLS_PRIVATE(Vf); /*!< The unblinding value. */ + mbedtls_mpi MBEDTLS_PRIVATE(pX); /*!< The previous \c X. */ +} +mbedtls_dhm_context; + +#else /* MBEDTLS_DHM_ALT */ +#include "dhm_alt.h" +#endif /* MBEDTLS_DHM_ALT */ + +/** + * \brief This function initializes the DHM context. + * + * \param ctx The DHM context to initialize. + */ +void mbedtls_dhm_init(mbedtls_dhm_context *ctx); + +/** + * \brief This function parses the DHM parameters in a + * TLS ServerKeyExchange handshake message + * (DHM modulus, generator, and public key). + * + * \note In a TLS handshake, this is the how the client + * sets up its DHM context from the server's public + * DHM key material. + * + * \param ctx The DHM context to use. This must be initialized. + * \param p On input, *p must be the start of the input buffer. + * On output, *p is updated to point to the end of the data + * that has been read. On success, this is the first byte + * past the end of the ServerKeyExchange parameters. + * On error, this is the point at which an error has been + * detected, which is usually not useful except to debug + * failures. + * \param end The end of the input buffer. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_DHM_XXX error code on failure. + */ +int mbedtls_dhm_read_params(mbedtls_dhm_context *ctx, + unsigned char **p, + const unsigned char *end); + +/** + * \brief This function generates a DHM key pair and exports its + * public part together with the DHM parameters in the format + * used in a TLS ServerKeyExchange handshake message. + * + * \note This function assumes that the DHM parameters \c ctx->P + * and \c ctx->G have already been properly set. For that, use + * mbedtls_dhm_set_group() below in conjunction with + * mbedtls_mpi_read_binary() and mbedtls_mpi_read_string(). + * + * \note In a TLS handshake, this is the how the server generates + * and exports its DHM key material. + * + * \param ctx The DHM context to use. This must be initialized + * and have the DHM parameters set. It may or may not + * already have imported the peer's public key. + * \param x_size The private key size in Bytes. + * \param olen The address at which to store the number of Bytes + * written on success. This must not be \c NULL. + * \param output The destination buffer. This must be a writable buffer of + * sufficient size to hold the reduced binary presentation of + * the modulus, the generator and the public key, each wrapped + * with a 2-byte length field. It is the responsibility of the + * caller to ensure that enough space is available. Refer to + * mbedtls_mpi_size() to computing the byte-size of an MPI. + * \param f_rng The RNG function. Must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL if \p f_rng doesn't need a context parameter. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_DHM_XXX error code on failure. + */ +int mbedtls_dhm_make_params(mbedtls_dhm_context *ctx, int x_size, + unsigned char *output, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief This function sets the prime modulus and generator. + * + * \note This function can be used to set \c ctx->P, \c ctx->G + * in preparation for mbedtls_dhm_make_params(). + * + * \param ctx The DHM context to configure. This must be initialized. + * \param P The MPI holding the DHM prime modulus. This must be + * an initialized MPI. + * \param G The MPI holding the DHM generator. This must be an + * initialized MPI. + * + * \return \c 0 if successful. + * \return An \c MBEDTLS_ERR_DHM_XXX error code on failure. + */ +int mbedtls_dhm_set_group(mbedtls_dhm_context *ctx, + const mbedtls_mpi *P, + const mbedtls_mpi *G); + +/** + * \brief This function imports the raw public value of the peer. + * + * \note In a TLS handshake, this is the how the server imports + * the Client's public DHM key. + * + * \param ctx The DHM context to use. This must be initialized and have + * its DHM parameters set, e.g. via mbedtls_dhm_set_group(). + * It may or may not already have generated its own private key. + * \param input The input buffer containing the \c G^Y value of the peer. + * This must be a readable buffer of size \p ilen Bytes. + * \param ilen The size of the input buffer \p input in Bytes. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_DHM_XXX error code on failure. + */ +int mbedtls_dhm_read_public(mbedtls_dhm_context *ctx, + const unsigned char *input, size_t ilen); + +/** + * \brief This function creates a DHM key pair and exports + * the raw public key in big-endian format. + * + * \note The destination buffer is always fully written + * so as to contain a big-endian representation of G^X mod P. + * If it is larger than \c ctx->len, it is padded accordingly + * with zero-bytes at the beginning. + * + * \param ctx The DHM context to use. This must be initialized and + * have the DHM parameters set. It may or may not already + * have imported the peer's public key. + * \param x_size The private key size in Bytes. + * \param output The destination buffer. This must be a writable buffer of + * size \p olen Bytes. + * \param olen The length of the destination buffer. This must be at least + * equal to `ctx->len` (the size of \c P). + * \param f_rng The RNG function. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be \c NULL + * if \p f_rng doesn't need a context argument. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_DHM_XXX error code on failure. + */ +int mbedtls_dhm_make_public(mbedtls_dhm_context *ctx, int x_size, + unsigned char *output, size_t olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief This function derives and exports the shared secret + * \c (G^Y)^X mod \c P. + * + * \note If \p f_rng is not \c NULL, it is used to blind the input as + * a countermeasure against timing attacks. Blinding is used + * only if our private key \c X is re-used, and not used + * otherwise. We recommend always passing a non-NULL + * \p f_rng argument. + * + * \param ctx The DHM context to use. This must be initialized + * and have its own private key generated and the peer's + * public key imported. + * \param output The buffer to write the generated shared key to. This + * must be a writable buffer of size \p output_size Bytes. + * \param output_size The size of the destination buffer. This must be at + * least the size of \c ctx->len (the size of \c P). + * \param olen On exit, holds the actual number of Bytes written. + * \param f_rng The RNG function. Must not be \c NULL. Used for + * blinding. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL if \p f_rng doesn't need a context parameter. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_DHM_XXX error code on failure. + */ +int mbedtls_dhm_calc_secret(mbedtls_dhm_context *ctx, + unsigned char *output, size_t output_size, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief This function returns the size of the prime modulus in bits. + * + * \param ctx The DHM context to query. + * + * \return The size of the prime modulus in bits, + * i.e. the number n such that 2^(n-1) <= P < 2^n. + */ +size_t mbedtls_dhm_get_bitlen(const mbedtls_dhm_context *ctx); + +/** + * \brief This function returns the size of the prime modulus in bytes. + * + * \param ctx The DHM context to query. + * + * \return The size of the prime modulus in bytes, + * i.e. the number n such that 2^(8*(n-1)) <= P < 2^(8*n). + */ +size_t mbedtls_dhm_get_len(const mbedtls_dhm_context *ctx); + +/** + * \brief This function copies a parameter of a DHM key. + * + * \param ctx The DHM context to query. + * \param param The parameter to copy. + * \param dest The MPI object to copy the value into. It must be + * initialized. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_DHM_BAD_INPUT_DATA if \p param is invalid. + * \return An \c MBEDTLS_ERR_MPI_XXX error code if the copy fails. + */ +int mbedtls_dhm_get_value(const mbedtls_dhm_context *ctx, + mbedtls_dhm_parameter param, + mbedtls_mpi *dest); + +/** + * \brief This function frees and clears the components + * of a DHM context. + * + * \param ctx The DHM context to free and clear. This may be \c NULL, + * in which case this function is a no-op. If it is not \c NULL, + * it must point to an initialized DHM context. + */ +void mbedtls_dhm_free(mbedtls_dhm_context *ctx); + +#if defined(MBEDTLS_ASN1_PARSE_C) +/** + * \brief This function parses DHM parameters in PEM or DER format. + * + * \param dhm The DHM context to import the DHM parameters into. + * This must be initialized. + * \param dhmin The input buffer. This must be a readable buffer of + * length \p dhminlen Bytes. + * \param dhminlen The size of the input buffer \p dhmin, including the + * terminating \c NULL Byte for PEM data. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_DHM_XXX or \c MBEDTLS_ERR_PEM_XXX error + * code on failure. + */ +int mbedtls_dhm_parse_dhm(mbedtls_dhm_context *dhm, const unsigned char *dhmin, + size_t dhminlen); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief This function loads and parses DHM parameters from a file. + * + * \param dhm The DHM context to load the parameters to. + * This must be initialized. + * \param path The filename to read the DHM parameters from. + * This must not be \c NULL. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_DHM_XXX or \c MBEDTLS_ERR_PEM_XXX + * error code on failure. + */ +int mbedtls_dhm_parse_dhmfile(mbedtls_dhm_context *dhm, const char *path); +#endif /* MBEDTLS_FS_IO */ +#endif /* MBEDTLS_ASN1_PARSE_C */ + +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief The DMH checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_dhm_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ +#ifdef __cplusplus +} +#endif + +/** + * RFC 3526, RFC 5114 and RFC 7919 standardize a number of + * Diffie-Hellman groups, some of which are included here + * for use within the SSL/TLS module and the user's convenience + * when configuring the Diffie-Hellman parameters by hand + * through \c mbedtls_ssl_conf_dh_param. + * + * The following lists the source of the above groups in the standards: + * - RFC 5114 section 2.2: 2048-bit MODP Group with 224-bit Prime Order Subgroup + * - RFC 3526 section 3: 2048-bit MODP Group + * - RFC 3526 section 4: 3072-bit MODP Group + * - RFC 3526 section 5: 4096-bit MODP Group + * - RFC 7919 section A.1: ffdhe2048 + * - RFC 7919 section A.2: ffdhe3072 + * - RFC 7919 section A.3: ffdhe4096 + * - RFC 7919 section A.4: ffdhe6144 + * - RFC 7919 section A.5: ffdhe8192 + * + * The constants with suffix "_p" denote the chosen prime moduli, while + * the constants with suffix "_g" denote the chosen generator + * of the associated prime field. + * + * The constants further suffixed with "_bin" are provided in binary format, + * while all other constants represent null-terminated strings holding the + * hexadecimal presentation of the respective numbers. + * + * The primes from RFC 3526 and RFC 7919 have been generating by the following + * trust-worthy procedure: + * - Fix N in { 2048, 3072, 4096, 6144, 8192 } and consider the N-bit number + * the first and last 64 bits are all 1, and the remaining N - 128 bits of + * which are 0x7ff...ff. + * - Add the smallest multiple of the first N - 129 bits of the binary expansion + * of pi (for RFC 5236) or e (for RFC 7919) to this intermediate bit-string + * such that the resulting integer is a safe-prime. + * - The result is the respective RFC 3526 / 7919 prime, and the corresponding + * generator is always chosen to be 2 (which is a square for these prime, + * hence the corresponding subgroup has order (p-1)/2 and avoids leaking a + * bit in the private exponent). + * + */ + +/* + * Trustworthy DHM parameters in binary form + */ + +#define MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN { \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, \ + 0xC9, 0x0F, 0xDA, 0xA2, 0x21, 0x68, 0xC2, 0x34, \ + 0xC4, 0xC6, 0x62, 0x8B, 0x80, 0xDC, 0x1C, 0xD1, \ + 0x29, 0x02, 0x4E, 0x08, 0x8A, 0x67, 0xCC, 0x74, \ + 0x02, 0x0B, 0xBE, 0xA6, 0x3B, 0x13, 0x9B, 0x22, \ + 0x51, 0x4A, 0x08, 0x79, 0x8E, 0x34, 0x04, 0xDD, \ + 0xEF, 0x95, 0x19, 0xB3, 0xCD, 0x3A, 0x43, 0x1B, \ + 0x30, 0x2B, 0x0A, 0x6D, 0xF2, 0x5F, 0x14, 0x37, \ + 0x4F, 0xE1, 0x35, 0x6D, 0x6D, 0x51, 0xC2, 0x45, \ + 0xE4, 0x85, 0xB5, 0x76, 0x62, 0x5E, 0x7E, 0xC6, \ + 0xF4, 0x4C, 0x42, 0xE9, 0xA6, 0x37, 0xED, 0x6B, \ + 0x0B, 0xFF, 0x5C, 0xB6, 0xF4, 0x06, 0xB7, 0xED, \ + 0xEE, 0x38, 0x6B, 0xFB, 0x5A, 0x89, 0x9F, 0xA5, \ + 0xAE, 0x9F, 0x24, 0x11, 0x7C, 0x4B, 0x1F, 0xE6, \ + 0x49, 0x28, 0x66, 0x51, 0xEC, 0xE4, 0x5B, 0x3D, \ + 0xC2, 0x00, 0x7C, 0xB8, 0xA1, 0x63, 0xBF, 0x05, \ + 0x98, 0xDA, 0x48, 0x36, 0x1C, 0x55, 0xD3, 0x9A, \ + 0x69, 0x16, 0x3F, 0xA8, 0xFD, 0x24, 0xCF, 0x5F, \ + 0x83, 0x65, 0x5D, 0x23, 0xDC, 0xA3, 0xAD, 0x96, \ + 0x1C, 0x62, 0xF3, 0x56, 0x20, 0x85, 0x52, 0xBB, \ + 0x9E, 0xD5, 0x29, 0x07, 0x70, 0x96, 0x96, 0x6D, \ + 0x67, 0x0C, 0x35, 0x4E, 0x4A, 0xBC, 0x98, 0x04, \ + 0xF1, 0x74, 0x6C, 0x08, 0xCA, 0x18, 0x21, 0x7C, \ + 0x32, 0x90, 0x5E, 0x46, 0x2E, 0x36, 0xCE, 0x3B, \ + 0xE3, 0x9E, 0x77, 0x2C, 0x18, 0x0E, 0x86, 0x03, \ + 0x9B, 0x27, 0x83, 0xA2, 0xEC, 0x07, 0xA2, 0x8F, \ + 0xB5, 0xC5, 0x5D, 0xF0, 0x6F, 0x4C, 0x52, 0xC9, \ + 0xDE, 0x2B, 0xCB, 0xF6, 0x95, 0x58, 0x17, 0x18, \ + 0x39, 0x95, 0x49, 0x7C, 0xEA, 0x95, 0x6A, 0xE5, \ + 0x15, 0xD2, 0x26, 0x18, 0x98, 0xFA, 0x05, 0x10, \ + 0x15, 0x72, 0x8E, 0x5A, 0x8A, 0xAC, 0xAA, 0x68, \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF } + +#define MBEDTLS_DHM_RFC3526_MODP_2048_G_BIN { 0x02 } + +#define MBEDTLS_DHM_RFC3526_MODP_3072_P_BIN { \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, \ + 0xC9, 0x0F, 0xDA, 0xA2, 0x21, 0x68, 0xC2, 0x34, \ + 0xC4, 0xC6, 0x62, 0x8B, 0x80, 0xDC, 0x1C, 0xD1, \ + 0x29, 0x02, 0x4E, 0x08, 0x8A, 0x67, 0xCC, 0x74, \ + 0x02, 0x0B, 0xBE, 0xA6, 0x3B, 0x13, 0x9B, 0x22, \ + 0x51, 0x4A, 0x08, 0x79, 0x8E, 0x34, 0x04, 0xDD, \ + 0xEF, 0x95, 0x19, 0xB3, 0xCD, 0x3A, 0x43, 0x1B, \ + 0x30, 0x2B, 0x0A, 0x6D, 0xF2, 0x5F, 0x14, 0x37, \ + 0x4F, 0xE1, 0x35, 0x6D, 0x6D, 0x51, 0xC2, 0x45, \ + 0xE4, 0x85, 0xB5, 0x76, 0x62, 0x5E, 0x7E, 0xC6, \ + 0xF4, 0x4C, 0x42, 0xE9, 0xA6, 0x37, 0xED, 0x6B, \ + 0x0B, 0xFF, 0x5C, 0xB6, 0xF4, 0x06, 0xB7, 0xED, \ + 0xEE, 0x38, 0x6B, 0xFB, 0x5A, 0x89, 0x9F, 0xA5, \ + 0xAE, 0x9F, 0x24, 0x11, 0x7C, 0x4B, 0x1F, 0xE6, \ + 0x49, 0x28, 0x66, 0x51, 0xEC, 0xE4, 0x5B, 0x3D, \ + 0xC2, 0x00, 0x7C, 0xB8, 0xA1, 0x63, 0xBF, 0x05, \ + 0x98, 0xDA, 0x48, 0x36, 0x1C, 0x55, 0xD3, 0x9A, \ + 0x69, 0x16, 0x3F, 0xA8, 0xFD, 0x24, 0xCF, 0x5F, \ + 0x83, 0x65, 0x5D, 0x23, 0xDC, 0xA3, 0xAD, 0x96, \ + 0x1C, 0x62, 0xF3, 0x56, 0x20, 0x85, 0x52, 0xBB, \ + 0x9E, 0xD5, 0x29, 0x07, 0x70, 0x96, 0x96, 0x6D, \ + 0x67, 0x0C, 0x35, 0x4E, 0x4A, 0xBC, 0x98, 0x04, \ + 0xF1, 0x74, 0x6C, 0x08, 0xCA, 0x18, 0x21, 0x7C, \ + 0x32, 0x90, 0x5E, 0x46, 0x2E, 0x36, 0xCE, 0x3B, \ + 0xE3, 0x9E, 0x77, 0x2C, 0x18, 0x0E, 0x86, 0x03, \ + 0x9B, 0x27, 0x83, 0xA2, 0xEC, 0x07, 0xA2, 0x8F, \ + 0xB5, 0xC5, 0x5D, 0xF0, 0x6F, 0x4C, 0x52, 0xC9, \ + 0xDE, 0x2B, 0xCB, 0xF6, 0x95, 0x58, 0x17, 0x18, \ + 0x39, 0x95, 0x49, 0x7C, 0xEA, 0x95, 0x6A, 0xE5, \ + 0x15, 0xD2, 0x26, 0x18, 0x98, 0xFA, 0x05, 0x10, \ + 0x15, 0x72, 0x8E, 0x5A, 0x8A, 0xAA, 0xC4, 0x2D, \ + 0xAD, 0x33, 0x17, 0x0D, 0x04, 0x50, 0x7A, 0x33, \ + 0xA8, 0x55, 0x21, 0xAB, 0xDF, 0x1C, 0xBA, 0x64, \ + 0xEC, 0xFB, 0x85, 0x04, 0x58, 0xDB, 0xEF, 0x0A, \ + 0x8A, 0xEA, 0x71, 0x57, 0x5D, 0x06, 0x0C, 0x7D, \ + 0xB3, 0x97, 0x0F, 0x85, 0xA6, 0xE1, 0xE4, 0xC7, \ + 0xAB, 0xF5, 0xAE, 0x8C, 0xDB, 0x09, 0x33, 0xD7, \ + 0x1E, 0x8C, 0x94, 0xE0, 0x4A, 0x25, 0x61, 0x9D, \ + 0xCE, 0xE3, 0xD2, 0x26, 0x1A, 0xD2, 0xEE, 0x6B, \ + 0xF1, 0x2F, 0xFA, 0x06, 0xD9, 0x8A, 0x08, 0x64, \ + 0xD8, 0x76, 0x02, 0x73, 0x3E, 0xC8, 0x6A, 0x64, \ + 0x52, 0x1F, 0x2B, 0x18, 0x17, 0x7B, 0x20, 0x0C, \ + 0xBB, 0xE1, 0x17, 0x57, 0x7A, 0x61, 0x5D, 0x6C, \ + 0x77, 0x09, 0x88, 0xC0, 0xBA, 0xD9, 0x46, 0xE2, \ + 0x08, 0xE2, 0x4F, 0xA0, 0x74, 0xE5, 0xAB, 0x31, \ + 0x43, 0xDB, 0x5B, 0xFC, 0xE0, 0xFD, 0x10, 0x8E, \ + 0x4B, 0x82, 0xD1, 0x20, 0xA9, 0x3A, 0xD2, 0xCA, \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF } + +#define MBEDTLS_DHM_RFC3526_MODP_3072_G_BIN { 0x02 } + +#define MBEDTLS_DHM_RFC3526_MODP_4096_P_BIN { \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, \ + 0xC9, 0x0F, 0xDA, 0xA2, 0x21, 0x68, 0xC2, 0x34, \ + 0xC4, 0xC6, 0x62, 0x8B, 0x80, 0xDC, 0x1C, 0xD1, \ + 0x29, 0x02, 0x4E, 0x08, 0x8A, 0x67, 0xCC, 0x74, \ + 0x02, 0x0B, 0xBE, 0xA6, 0x3B, 0x13, 0x9B, 0x22, \ + 0x51, 0x4A, 0x08, 0x79, 0x8E, 0x34, 0x04, 0xDD, \ + 0xEF, 0x95, 0x19, 0xB3, 0xCD, 0x3A, 0x43, 0x1B, \ + 0x30, 0x2B, 0x0A, 0x6D, 0xF2, 0x5F, 0x14, 0x37, \ + 0x4F, 0xE1, 0x35, 0x6D, 0x6D, 0x51, 0xC2, 0x45, \ + 0xE4, 0x85, 0xB5, 0x76, 0x62, 0x5E, 0x7E, 0xC6, \ + 0xF4, 0x4C, 0x42, 0xE9, 0xA6, 0x37, 0xED, 0x6B, \ + 0x0B, 0xFF, 0x5C, 0xB6, 0xF4, 0x06, 0xB7, 0xED, \ + 0xEE, 0x38, 0x6B, 0xFB, 0x5A, 0x89, 0x9F, 0xA5, \ + 0xAE, 0x9F, 0x24, 0x11, 0x7C, 0x4B, 0x1F, 0xE6, \ + 0x49, 0x28, 0x66, 0x51, 0xEC, 0xE4, 0x5B, 0x3D, \ + 0xC2, 0x00, 0x7C, 0xB8, 0xA1, 0x63, 0xBF, 0x05, \ + 0x98, 0xDA, 0x48, 0x36, 0x1C, 0x55, 0xD3, 0x9A, \ + 0x69, 0x16, 0x3F, 0xA8, 0xFD, 0x24, 0xCF, 0x5F, \ + 0x83, 0x65, 0x5D, 0x23, 0xDC, 0xA3, 0xAD, 0x96, \ + 0x1C, 0x62, 0xF3, 0x56, 0x20, 0x85, 0x52, 0xBB, \ + 0x9E, 0xD5, 0x29, 0x07, 0x70, 0x96, 0x96, 0x6D, \ + 0x67, 0x0C, 0x35, 0x4E, 0x4A, 0xBC, 0x98, 0x04, \ + 0xF1, 0x74, 0x6C, 0x08, 0xCA, 0x18, 0x21, 0x7C, \ + 0x32, 0x90, 0x5E, 0x46, 0x2E, 0x36, 0xCE, 0x3B, \ + 0xE3, 0x9E, 0x77, 0x2C, 0x18, 0x0E, 0x86, 0x03, \ + 0x9B, 0x27, 0x83, 0xA2, 0xEC, 0x07, 0xA2, 0x8F, \ + 0xB5, 0xC5, 0x5D, 0xF0, 0x6F, 0x4C, 0x52, 0xC9, \ + 0xDE, 0x2B, 0xCB, 0xF6, 0x95, 0x58, 0x17, 0x18, \ + 0x39, 0x95, 0x49, 0x7C, 0xEA, 0x95, 0x6A, 0xE5, \ + 0x15, 0xD2, 0x26, 0x18, 0x98, 0xFA, 0x05, 0x10, \ + 0x15, 0x72, 0x8E, 0x5A, 0x8A, 0xAA, 0xC4, 0x2D, \ + 0xAD, 0x33, 0x17, 0x0D, 0x04, 0x50, 0x7A, 0x33, \ + 0xA8, 0x55, 0x21, 0xAB, 0xDF, 0x1C, 0xBA, 0x64, \ + 0xEC, 0xFB, 0x85, 0x04, 0x58, 0xDB, 0xEF, 0x0A, \ + 0x8A, 0xEA, 0x71, 0x57, 0x5D, 0x06, 0x0C, 0x7D, \ + 0xB3, 0x97, 0x0F, 0x85, 0xA6, 0xE1, 0xE4, 0xC7, \ + 0xAB, 0xF5, 0xAE, 0x8C, 0xDB, 0x09, 0x33, 0xD7, \ + 0x1E, 0x8C, 0x94, 0xE0, 0x4A, 0x25, 0x61, 0x9D, \ + 0xCE, 0xE3, 0xD2, 0x26, 0x1A, 0xD2, 0xEE, 0x6B, \ + 0xF1, 0x2F, 0xFA, 0x06, 0xD9, 0x8A, 0x08, 0x64, \ + 0xD8, 0x76, 0x02, 0x73, 0x3E, 0xC8, 0x6A, 0x64, \ + 0x52, 0x1F, 0x2B, 0x18, 0x17, 0x7B, 0x20, 0x0C, \ + 0xBB, 0xE1, 0x17, 0x57, 0x7A, 0x61, 0x5D, 0x6C, \ + 0x77, 0x09, 0x88, 0xC0, 0xBA, 0xD9, 0x46, 0xE2, \ + 0x08, 0xE2, 0x4F, 0xA0, 0x74, 0xE5, 0xAB, 0x31, \ + 0x43, 0xDB, 0x5B, 0xFC, 0xE0, 0xFD, 0x10, 0x8E, \ + 0x4B, 0x82, 0xD1, 0x20, 0xA9, 0x21, 0x08, 0x01, \ + 0x1A, 0x72, 0x3C, 0x12, 0xA7, 0x87, 0xE6, 0xD7, \ + 0x88, 0x71, 0x9A, 0x10, 0xBD, 0xBA, 0x5B, 0x26, \ + 0x99, 0xC3, 0x27, 0x18, 0x6A, 0xF4, 0xE2, 0x3C, \ + 0x1A, 0x94, 0x68, 0x34, 0xB6, 0x15, 0x0B, 0xDA, \ + 0x25, 0x83, 0xE9, 0xCA, 0x2A, 0xD4, 0x4C, 0xE8, \ + 0xDB, 0xBB, 0xC2, 0xDB, 0x04, 0xDE, 0x8E, 0xF9, \ + 0x2E, 0x8E, 0xFC, 0x14, 0x1F, 0xBE, 0xCA, 0xA6, \ + 0x28, 0x7C, 0x59, 0x47, 0x4E, 0x6B, 0xC0, 0x5D, \ + 0x99, 0xB2, 0x96, 0x4F, 0xA0, 0x90, 0xC3, 0xA2, \ + 0x23, 0x3B, 0xA1, 0x86, 0x51, 0x5B, 0xE7, 0xED, \ + 0x1F, 0x61, 0x29, 0x70, 0xCE, 0xE2, 0xD7, 0xAF, \ + 0xB8, 0x1B, 0xDD, 0x76, 0x21, 0x70, 0x48, 0x1C, \ + 0xD0, 0x06, 0x91, 0x27, 0xD5, 0xB0, 0x5A, 0xA9, \ + 0x93, 0xB4, 0xEA, 0x98, 0x8D, 0x8F, 0xDD, 0xC1, \ + 0x86, 0xFF, 0xB7, 0xDC, 0x90, 0xA6, 0xC0, 0x8F, \ + 0x4D, 0xF4, 0x35, 0xC9, 0x34, 0x06, 0x31, 0x99, \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF } + +#define MBEDTLS_DHM_RFC3526_MODP_4096_G_BIN { 0x02 } + +#define MBEDTLS_DHM_RFC7919_FFDHE2048_P_BIN { \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, \ + 0xAD, 0xF8, 0x54, 0x58, 0xA2, 0xBB, 0x4A, 0x9A, \ + 0xAF, 0xDC, 0x56, 0x20, 0x27, 0x3D, 0x3C, 0xF1, \ + 0xD8, 0xB9, 0xC5, 0x83, 0xCE, 0x2D, 0x36, 0x95, \ + 0xA9, 0xE1, 0x36, 0x41, 0x14, 0x64, 0x33, 0xFB, \ + 0xCC, 0x93, 0x9D, 0xCE, 0x24, 0x9B, 0x3E, 0xF9, \ + 0x7D, 0x2F, 0xE3, 0x63, 0x63, 0x0C, 0x75, 0xD8, \ + 0xF6, 0x81, 0xB2, 0x02, 0xAE, 0xC4, 0x61, 0x7A, \ + 0xD3, 0xDF, 0x1E, 0xD5, 0xD5, 0xFD, 0x65, 0x61, \ + 0x24, 0x33, 0xF5, 0x1F, 0x5F, 0x06, 0x6E, 0xD0, \ + 0x85, 0x63, 0x65, 0x55, 0x3D, 0xED, 0x1A, 0xF3, \ + 0xB5, 0x57, 0x13, 0x5E, 0x7F, 0x57, 0xC9, 0x35, \ + 0x98, 0x4F, 0x0C, 0x70, 0xE0, 0xE6, 0x8B, 0x77, \ + 0xE2, 0xA6, 0x89, 0xDA, 0xF3, 0xEF, 0xE8, 0x72, \ + 0x1D, 0xF1, 0x58, 0xA1, 0x36, 0xAD, 0xE7, 0x35, \ + 0x30, 0xAC, 0xCA, 0x4F, 0x48, 0x3A, 0x79, 0x7A, \ + 0xBC, 0x0A, 0xB1, 0x82, 0xB3, 0x24, 0xFB, 0x61, \ + 0xD1, 0x08, 0xA9, 0x4B, 0xB2, 0xC8, 0xE3, 0xFB, \ + 0xB9, 0x6A, 0xDA, 0xB7, 0x60, 0xD7, 0xF4, 0x68, \ + 0x1D, 0x4F, 0x42, 0xA3, 0xDE, 0x39, 0x4D, 0xF4, \ + 0xAE, 0x56, 0xED, 0xE7, 0x63, 0x72, 0xBB, 0x19, \ + 0x0B, 0x07, 0xA7, 0xC8, 0xEE, 0x0A, 0x6D, 0x70, \ + 0x9E, 0x02, 0xFC, 0xE1, 0xCD, 0xF7, 0xE2, 0xEC, \ + 0xC0, 0x34, 0x04, 0xCD, 0x28, 0x34, 0x2F, 0x61, \ + 0x91, 0x72, 0xFE, 0x9C, 0xE9, 0x85, 0x83, 0xFF, \ + 0x8E, 0x4F, 0x12, 0x32, 0xEE, 0xF2, 0x81, 0x83, \ + 0xC3, 0xFE, 0x3B, 0x1B, 0x4C, 0x6F, 0xAD, 0x73, \ + 0x3B, 0xB5, 0xFC, 0xBC, 0x2E, 0xC2, 0x20, 0x05, \ + 0xC5, 0x8E, 0xF1, 0x83, 0x7D, 0x16, 0x83, 0xB2, \ + 0xC6, 0xF3, 0x4A, 0x26, 0xC1, 0xB2, 0xEF, 0xFA, \ + 0x88, 0x6B, 0x42, 0x38, 0x61, 0x28, 0x5C, 0x97, \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, } + +#define MBEDTLS_DHM_RFC7919_FFDHE2048_G_BIN { 0x02 } + +#define MBEDTLS_DHM_RFC7919_FFDHE3072_P_BIN { \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, \ + 0xAD, 0xF8, 0x54, 0x58, 0xA2, 0xBB, 0x4A, 0x9A, \ + 0xAF, 0xDC, 0x56, 0x20, 0x27, 0x3D, 0x3C, 0xF1, \ + 0xD8, 0xB9, 0xC5, 0x83, 0xCE, 0x2D, 0x36, 0x95, \ + 0xA9, 0xE1, 0x36, 0x41, 0x14, 0x64, 0x33, 0xFB, \ + 0xCC, 0x93, 0x9D, 0xCE, 0x24, 0x9B, 0x3E, 0xF9, \ + 0x7D, 0x2F, 0xE3, 0x63, 0x63, 0x0C, 0x75, 0xD8, \ + 0xF6, 0x81, 0xB2, 0x02, 0xAE, 0xC4, 0x61, 0x7A, \ + 0xD3, 0xDF, 0x1E, 0xD5, 0xD5, 0xFD, 0x65, 0x61, \ + 0x24, 0x33, 0xF5, 0x1F, 0x5F, 0x06, 0x6E, 0xD0, \ + 0x85, 0x63, 0x65, 0x55, 0x3D, 0xED, 0x1A, 0xF3, \ + 0xB5, 0x57, 0x13, 0x5E, 0x7F, 0x57, 0xC9, 0x35, \ + 0x98, 0x4F, 0x0C, 0x70, 0xE0, 0xE6, 0x8B, 0x77, \ + 0xE2, 0xA6, 0x89, 0xDA, 0xF3, 0xEF, 0xE8, 0x72, \ + 0x1D, 0xF1, 0x58, 0xA1, 0x36, 0xAD, 0xE7, 0x35, \ + 0x30, 0xAC, 0xCA, 0x4F, 0x48, 0x3A, 0x79, 0x7A, \ + 0xBC, 0x0A, 0xB1, 0x82, 0xB3, 0x24, 0xFB, 0x61, \ + 0xD1, 0x08, 0xA9, 0x4B, 0xB2, 0xC8, 0xE3, 0xFB, \ + 0xB9, 0x6A, 0xDA, 0xB7, 0x60, 0xD7, 0xF4, 0x68, \ + 0x1D, 0x4F, 0x42, 0xA3, 0xDE, 0x39, 0x4D, 0xF4, \ + 0xAE, 0x56, 0xED, 0xE7, 0x63, 0x72, 0xBB, 0x19, \ + 0x0B, 0x07, 0xA7, 0xC8, 0xEE, 0x0A, 0x6D, 0x70, \ + 0x9E, 0x02, 0xFC, 0xE1, 0xCD, 0xF7, 0xE2, 0xEC, \ + 0xC0, 0x34, 0x04, 0xCD, 0x28, 0x34, 0x2F, 0x61, \ + 0x91, 0x72, 0xFE, 0x9C, 0xE9, 0x85, 0x83, 0xFF, \ + 0x8E, 0x4F, 0x12, 0x32, 0xEE, 0xF2, 0x81, 0x83, \ + 0xC3, 0xFE, 0x3B, 0x1B, 0x4C, 0x6F, 0xAD, 0x73, \ + 0x3B, 0xB5, 0xFC, 0xBC, 0x2E, 0xC2, 0x20, 0x05, \ + 0xC5, 0x8E, 0xF1, 0x83, 0x7D, 0x16, 0x83, 0xB2, \ + 0xC6, 0xF3, 0x4A, 0x26, 0xC1, 0xB2, 0xEF, 0xFA, \ + 0x88, 0x6B, 0x42, 0x38, 0x61, 0x1F, 0xCF, 0xDC, \ + 0xDE, 0x35, 0x5B, 0x3B, 0x65, 0x19, 0x03, 0x5B, \ + 0xBC, 0x34, 0xF4, 0xDE, 0xF9, 0x9C, 0x02, 0x38, \ + 0x61, 0xB4, 0x6F, 0xC9, 0xD6, 0xE6, 0xC9, 0x07, \ + 0x7A, 0xD9, 0x1D, 0x26, 0x91, 0xF7, 0xF7, 0xEE, \ + 0x59, 0x8C, 0xB0, 0xFA, 0xC1, 0x86, 0xD9, 0x1C, \ + 0xAE, 0xFE, 0x13, 0x09, 0x85, 0x13, 0x92, 0x70, \ + 0xB4, 0x13, 0x0C, 0x93, 0xBC, 0x43, 0x79, 0x44, \ + 0xF4, 0xFD, 0x44, 0x52, 0xE2, 0xD7, 0x4D, 0xD3, \ + 0x64, 0xF2, 0xE2, 0x1E, 0x71, 0xF5, 0x4B, 0xFF, \ + 0x5C, 0xAE, 0x82, 0xAB, 0x9C, 0x9D, 0xF6, 0x9E, \ + 0xE8, 0x6D, 0x2B, 0xC5, 0x22, 0x36, 0x3A, 0x0D, \ + 0xAB, 0xC5, 0x21, 0x97, 0x9B, 0x0D, 0xEA, 0xDA, \ + 0x1D, 0xBF, 0x9A, 0x42, 0xD5, 0xC4, 0x48, 0x4E, \ + 0x0A, 0xBC, 0xD0, 0x6B, 0xFA, 0x53, 0xDD, 0xEF, \ + 0x3C, 0x1B, 0x20, 0xEE, 0x3F, 0xD5, 0x9D, 0x7C, \ + 0x25, 0xE4, 0x1D, 0x2B, 0x66, 0xC6, 0x2E, 0x37, \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF } + +#define MBEDTLS_DHM_RFC7919_FFDHE3072_G_BIN { 0x02 } + +#define MBEDTLS_DHM_RFC7919_FFDHE4096_P_BIN { \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, \ + 0xAD, 0xF8, 0x54, 0x58, 0xA2, 0xBB, 0x4A, 0x9A, \ + 0xAF, 0xDC, 0x56, 0x20, 0x27, 0x3D, 0x3C, 0xF1, \ + 0xD8, 0xB9, 0xC5, 0x83, 0xCE, 0x2D, 0x36, 0x95, \ + 0xA9, 0xE1, 0x36, 0x41, 0x14, 0x64, 0x33, 0xFB, \ + 0xCC, 0x93, 0x9D, 0xCE, 0x24, 0x9B, 0x3E, 0xF9, \ + 0x7D, 0x2F, 0xE3, 0x63, 0x63, 0x0C, 0x75, 0xD8, \ + 0xF6, 0x81, 0xB2, 0x02, 0xAE, 0xC4, 0x61, 0x7A, \ + 0xD3, 0xDF, 0x1E, 0xD5, 0xD5, 0xFD, 0x65, 0x61, \ + 0x24, 0x33, 0xF5, 0x1F, 0x5F, 0x06, 0x6E, 0xD0, \ + 0x85, 0x63, 0x65, 0x55, 0x3D, 0xED, 0x1A, 0xF3, \ + 0xB5, 0x57, 0x13, 0x5E, 0x7F, 0x57, 0xC9, 0x35, \ + 0x98, 0x4F, 0x0C, 0x70, 0xE0, 0xE6, 0x8B, 0x77, \ + 0xE2, 0xA6, 0x89, 0xDA, 0xF3, 0xEF, 0xE8, 0x72, \ + 0x1D, 0xF1, 0x58, 0xA1, 0x36, 0xAD, 0xE7, 0x35, \ + 0x30, 0xAC, 0xCA, 0x4F, 0x48, 0x3A, 0x79, 0x7A, \ + 0xBC, 0x0A, 0xB1, 0x82, 0xB3, 0x24, 0xFB, 0x61, \ + 0xD1, 0x08, 0xA9, 0x4B, 0xB2, 0xC8, 0xE3, 0xFB, \ + 0xB9, 0x6A, 0xDA, 0xB7, 0x60, 0xD7, 0xF4, 0x68, \ + 0x1D, 0x4F, 0x42, 0xA3, 0xDE, 0x39, 0x4D, 0xF4, \ + 0xAE, 0x56, 0xED, 0xE7, 0x63, 0x72, 0xBB, 0x19, \ + 0x0B, 0x07, 0xA7, 0xC8, 0xEE, 0x0A, 0x6D, 0x70, \ + 0x9E, 0x02, 0xFC, 0xE1, 0xCD, 0xF7, 0xE2, 0xEC, \ + 0xC0, 0x34, 0x04, 0xCD, 0x28, 0x34, 0x2F, 0x61, \ + 0x91, 0x72, 0xFE, 0x9C, 0xE9, 0x85, 0x83, 0xFF, \ + 0x8E, 0x4F, 0x12, 0x32, 0xEE, 0xF2, 0x81, 0x83, \ + 0xC3, 0xFE, 0x3B, 0x1B, 0x4C, 0x6F, 0xAD, 0x73, \ + 0x3B, 0xB5, 0xFC, 0xBC, 0x2E, 0xC2, 0x20, 0x05, \ + 0xC5, 0x8E, 0xF1, 0x83, 0x7D, 0x16, 0x83, 0xB2, \ + 0xC6, 0xF3, 0x4A, 0x26, 0xC1, 0xB2, 0xEF, 0xFA, \ + 0x88, 0x6B, 0x42, 0x38, 0x61, 0x1F, 0xCF, 0xDC, \ + 0xDE, 0x35, 0x5B, 0x3B, 0x65, 0x19, 0x03, 0x5B, \ + 0xBC, 0x34, 0xF4, 0xDE, 0xF9, 0x9C, 0x02, 0x38, \ + 0x61, 0xB4, 0x6F, 0xC9, 0xD6, 0xE6, 0xC9, 0x07, \ + 0x7A, 0xD9, 0x1D, 0x26, 0x91, 0xF7, 0xF7, 0xEE, \ + 0x59, 0x8C, 0xB0, 0xFA, 0xC1, 0x86, 0xD9, 0x1C, \ + 0xAE, 0xFE, 0x13, 0x09, 0x85, 0x13, 0x92, 0x70, \ + 0xB4, 0x13, 0x0C, 0x93, 0xBC, 0x43, 0x79, 0x44, \ + 0xF4, 0xFD, 0x44, 0x52, 0xE2, 0xD7, 0x4D, 0xD3, \ + 0x64, 0xF2, 0xE2, 0x1E, 0x71, 0xF5, 0x4B, 0xFF, \ + 0x5C, 0xAE, 0x82, 0xAB, 0x9C, 0x9D, 0xF6, 0x9E, \ + 0xE8, 0x6D, 0x2B, 0xC5, 0x22, 0x36, 0x3A, 0x0D, \ + 0xAB, 0xC5, 0x21, 0x97, 0x9B, 0x0D, 0xEA, 0xDA, \ + 0x1D, 0xBF, 0x9A, 0x42, 0xD5, 0xC4, 0x48, 0x4E, \ + 0x0A, 0xBC, 0xD0, 0x6B, 0xFA, 0x53, 0xDD, 0xEF, \ + 0x3C, 0x1B, 0x20, 0xEE, 0x3F, 0xD5, 0x9D, 0x7C, \ + 0x25, 0xE4, 0x1D, 0x2B, 0x66, 0x9E, 0x1E, 0xF1, \ + 0x6E, 0x6F, 0x52, 0xC3, 0x16, 0x4D, 0xF4, 0xFB, \ + 0x79, 0x30, 0xE9, 0xE4, 0xE5, 0x88, 0x57, 0xB6, \ + 0xAC, 0x7D, 0x5F, 0x42, 0xD6, 0x9F, 0x6D, 0x18, \ + 0x77, 0x63, 0xCF, 0x1D, 0x55, 0x03, 0x40, 0x04, \ + 0x87, 0xF5, 0x5B, 0xA5, 0x7E, 0x31, 0xCC, 0x7A, \ + 0x71, 0x35, 0xC8, 0x86, 0xEF, 0xB4, 0x31, 0x8A, \ + 0xED, 0x6A, 0x1E, 0x01, 0x2D, 0x9E, 0x68, 0x32, \ + 0xA9, 0x07, 0x60, 0x0A, 0x91, 0x81, 0x30, 0xC4, \ + 0x6D, 0xC7, 0x78, 0xF9, 0x71, 0xAD, 0x00, 0x38, \ + 0x09, 0x29, 0x99, 0xA3, 0x33, 0xCB, 0x8B, 0x7A, \ + 0x1A, 0x1D, 0xB9, 0x3D, 0x71, 0x40, 0x00, 0x3C, \ + 0x2A, 0x4E, 0xCE, 0xA9, 0xF9, 0x8D, 0x0A, 0xCC, \ + 0x0A, 0x82, 0x91, 0xCD, 0xCE, 0xC9, 0x7D, 0xCF, \ + 0x8E, 0xC9, 0xB5, 0x5A, 0x7F, 0x88, 0xA4, 0x6B, \ + 0x4D, 0xB5, 0xA8, 0x51, 0xF4, 0x41, 0x82, 0xE1, \ + 0xC6, 0x8A, 0x00, 0x7E, 0x5E, 0x65, 0x5F, 0x6A, \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF } + +#define MBEDTLS_DHM_RFC7919_FFDHE4096_G_BIN { 0x02 } + +#define MBEDTLS_DHM_RFC7919_FFDHE6144_P_BIN { \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, \ + 0xAD, 0xF8, 0x54, 0x58, 0xA2, 0xBB, 0x4A, 0x9A, \ + 0xAF, 0xDC, 0x56, 0x20, 0x27, 0x3D, 0x3C, 0xF1, \ + 0xD8, 0xB9, 0xC5, 0x83, 0xCE, 0x2D, 0x36, 0x95, \ + 0xA9, 0xE1, 0x36, 0x41, 0x14, 0x64, 0x33, 0xFB, \ + 0xCC, 0x93, 0x9D, 0xCE, 0x24, 0x9B, 0x3E, 0xF9, \ + 0x7D, 0x2F, 0xE3, 0x63, 0x63, 0x0C, 0x75, 0xD8, \ + 0xF6, 0x81, 0xB2, 0x02, 0xAE, 0xC4, 0x61, 0x7A, \ + 0xD3, 0xDF, 0x1E, 0xD5, 0xD5, 0xFD, 0x65, 0x61, \ + 0x24, 0x33, 0xF5, 0x1F, 0x5F, 0x06, 0x6E, 0xD0, \ + 0x85, 0x63, 0x65, 0x55, 0x3D, 0xED, 0x1A, 0xF3, \ + 0xB5, 0x57, 0x13, 0x5E, 0x7F, 0x57, 0xC9, 0x35, \ + 0x98, 0x4F, 0x0C, 0x70, 0xE0, 0xE6, 0x8B, 0x77, \ + 0xE2, 0xA6, 0x89, 0xDA, 0xF3, 0xEF, 0xE8, 0x72, \ + 0x1D, 0xF1, 0x58, 0xA1, 0x36, 0xAD, 0xE7, 0x35, \ + 0x30, 0xAC, 0xCA, 0x4F, 0x48, 0x3A, 0x79, 0x7A, \ + 0xBC, 0x0A, 0xB1, 0x82, 0xB3, 0x24, 0xFB, 0x61, \ + 0xD1, 0x08, 0xA9, 0x4B, 0xB2, 0xC8, 0xE3, 0xFB, \ + 0xB9, 0x6A, 0xDA, 0xB7, 0x60, 0xD7, 0xF4, 0x68, \ + 0x1D, 0x4F, 0x42, 0xA3, 0xDE, 0x39, 0x4D, 0xF4, \ + 0xAE, 0x56, 0xED, 0xE7, 0x63, 0x72, 0xBB, 0x19, \ + 0x0B, 0x07, 0xA7, 0xC8, 0xEE, 0x0A, 0x6D, 0x70, \ + 0x9E, 0x02, 0xFC, 0xE1, 0xCD, 0xF7, 0xE2, 0xEC, \ + 0xC0, 0x34, 0x04, 0xCD, 0x28, 0x34, 0x2F, 0x61, \ + 0x91, 0x72, 0xFE, 0x9C, 0xE9, 0x85, 0x83, 0xFF, \ + 0x8E, 0x4F, 0x12, 0x32, 0xEE, 0xF2, 0x81, 0x83, \ + 0xC3, 0xFE, 0x3B, 0x1B, 0x4C, 0x6F, 0xAD, 0x73, \ + 0x3B, 0xB5, 0xFC, 0xBC, 0x2E, 0xC2, 0x20, 0x05, \ + 0xC5, 0x8E, 0xF1, 0x83, 0x7D, 0x16, 0x83, 0xB2, \ + 0xC6, 0xF3, 0x4A, 0x26, 0xC1, 0xB2, 0xEF, 0xFA, \ + 0x88, 0x6B, 0x42, 0x38, 0x61, 0x1F, 0xCF, 0xDC, \ + 0xDE, 0x35, 0x5B, 0x3B, 0x65, 0x19, 0x03, 0x5B, \ + 0xBC, 0x34, 0xF4, 0xDE, 0xF9, 0x9C, 0x02, 0x38, \ + 0x61, 0xB4, 0x6F, 0xC9, 0xD6, 0xE6, 0xC9, 0x07, \ + 0x7A, 0xD9, 0x1D, 0x26, 0x91, 0xF7, 0xF7, 0xEE, \ + 0x59, 0x8C, 0xB0, 0xFA, 0xC1, 0x86, 0xD9, 0x1C, \ + 0xAE, 0xFE, 0x13, 0x09, 0x85, 0x13, 0x92, 0x70, \ + 0xB4, 0x13, 0x0C, 0x93, 0xBC, 0x43, 0x79, 0x44, \ + 0xF4, 0xFD, 0x44, 0x52, 0xE2, 0xD7, 0x4D, 0xD3, \ + 0x64, 0xF2, 0xE2, 0x1E, 0x71, 0xF5, 0x4B, 0xFF, \ + 0x5C, 0xAE, 0x82, 0xAB, 0x9C, 0x9D, 0xF6, 0x9E, \ + 0xE8, 0x6D, 0x2B, 0xC5, 0x22, 0x36, 0x3A, 0x0D, \ + 0xAB, 0xC5, 0x21, 0x97, 0x9B, 0x0D, 0xEA, 0xDA, \ + 0x1D, 0xBF, 0x9A, 0x42, 0xD5, 0xC4, 0x48, 0x4E, \ + 0x0A, 0xBC, 0xD0, 0x6B, 0xFA, 0x53, 0xDD, 0xEF, \ + 0x3C, 0x1B, 0x20, 0xEE, 0x3F, 0xD5, 0x9D, 0x7C, \ + 0x25, 0xE4, 0x1D, 0x2B, 0x66, 0x9E, 0x1E, 0xF1, \ + 0x6E, 0x6F, 0x52, 0xC3, 0x16, 0x4D, 0xF4, 0xFB, \ + 0x79, 0x30, 0xE9, 0xE4, 0xE5, 0x88, 0x57, 0xB6, \ + 0xAC, 0x7D, 0x5F, 0x42, 0xD6, 0x9F, 0x6D, 0x18, \ + 0x77, 0x63, 0xCF, 0x1D, 0x55, 0x03, 0x40, 0x04, \ + 0x87, 0xF5, 0x5B, 0xA5, 0x7E, 0x31, 0xCC, 0x7A, \ + 0x71, 0x35, 0xC8, 0x86, 0xEF, 0xB4, 0x31, 0x8A, \ + 0xED, 0x6A, 0x1E, 0x01, 0x2D, 0x9E, 0x68, 0x32, \ + 0xA9, 0x07, 0x60, 0x0A, 0x91, 0x81, 0x30, 0xC4, \ + 0x6D, 0xC7, 0x78, 0xF9, 0x71, 0xAD, 0x00, 0x38, \ + 0x09, 0x29, 0x99, 0xA3, 0x33, 0xCB, 0x8B, 0x7A, \ + 0x1A, 0x1D, 0xB9, 0x3D, 0x71, 0x40, 0x00, 0x3C, \ + 0x2A, 0x4E, 0xCE, 0xA9, 0xF9, 0x8D, 0x0A, 0xCC, \ + 0x0A, 0x82, 0x91, 0xCD, 0xCE, 0xC9, 0x7D, 0xCF, \ + 0x8E, 0xC9, 0xB5, 0x5A, 0x7F, 0x88, 0xA4, 0x6B, \ + 0x4D, 0xB5, 0xA8, 0x51, 0xF4, 0x41, 0x82, 0xE1, \ + 0xC6, 0x8A, 0x00, 0x7E, 0x5E, 0x0D, 0xD9, 0x02, \ + 0x0B, 0xFD, 0x64, 0xB6, 0x45, 0x03, 0x6C, 0x7A, \ + 0x4E, 0x67, 0x7D, 0x2C, 0x38, 0x53, 0x2A, 0x3A, \ + 0x23, 0xBA, 0x44, 0x42, 0xCA, 0xF5, 0x3E, 0xA6, \ + 0x3B, 0xB4, 0x54, 0x32, 0x9B, 0x76, 0x24, 0xC8, \ + 0x91, 0x7B, 0xDD, 0x64, 0xB1, 0xC0, 0xFD, 0x4C, \ + 0xB3, 0x8E, 0x8C, 0x33, 0x4C, 0x70, 0x1C, 0x3A, \ + 0xCD, 0xAD, 0x06, 0x57, 0xFC, 0xCF, 0xEC, 0x71, \ + 0x9B, 0x1F, 0x5C, 0x3E, 0x4E, 0x46, 0x04, 0x1F, \ + 0x38, 0x81, 0x47, 0xFB, 0x4C, 0xFD, 0xB4, 0x77, \ + 0xA5, 0x24, 0x71, 0xF7, 0xA9, 0xA9, 0x69, 0x10, \ + 0xB8, 0x55, 0x32, 0x2E, 0xDB, 0x63, 0x40, 0xD8, \ + 0xA0, 0x0E, 0xF0, 0x92, 0x35, 0x05, 0x11, 0xE3, \ + 0x0A, 0xBE, 0xC1, 0xFF, 0xF9, 0xE3, 0xA2, 0x6E, \ + 0x7F, 0xB2, 0x9F, 0x8C, 0x18, 0x30, 0x23, 0xC3, \ + 0x58, 0x7E, 0x38, 0xDA, 0x00, 0x77, 0xD9, 0xB4, \ + 0x76, 0x3E, 0x4E, 0x4B, 0x94, 0xB2, 0xBB, 0xC1, \ + 0x94, 0xC6, 0x65, 0x1E, 0x77, 0xCA, 0xF9, 0x92, \ + 0xEE, 0xAA, 0xC0, 0x23, 0x2A, 0x28, 0x1B, 0xF6, \ + 0xB3, 0xA7, 0x39, 0xC1, 0x22, 0x61, 0x16, 0x82, \ + 0x0A, 0xE8, 0xDB, 0x58, 0x47, 0xA6, 0x7C, 0xBE, \ + 0xF9, 0xC9, 0x09, 0x1B, 0x46, 0x2D, 0x53, 0x8C, \ + 0xD7, 0x2B, 0x03, 0x74, 0x6A, 0xE7, 0x7F, 0x5E, \ + 0x62, 0x29, 0x2C, 0x31, 0x15, 0x62, 0xA8, 0x46, \ + 0x50, 0x5D, 0xC8, 0x2D, 0xB8, 0x54, 0x33, 0x8A, \ + 0xE4, 0x9F, 0x52, 0x35, 0xC9, 0x5B, 0x91, 0x17, \ + 0x8C, 0xCF, 0x2D, 0xD5, 0xCA, 0xCE, 0xF4, 0x03, \ + 0xEC, 0x9D, 0x18, 0x10, 0xC6, 0x27, 0x2B, 0x04, \ + 0x5B, 0x3B, 0x71, 0xF9, 0xDC, 0x6B, 0x80, 0xD6, \ + 0x3F, 0xDD, 0x4A, 0x8E, 0x9A, 0xDB, 0x1E, 0x69, \ + 0x62, 0xA6, 0x95, 0x26, 0xD4, 0x31, 0x61, 0xC1, \ + 0xA4, 0x1D, 0x57, 0x0D, 0x79, 0x38, 0xDA, 0xD4, \ + 0xA4, 0x0E, 0x32, 0x9C, 0xD0, 0xE4, 0x0E, 0x65, \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF } + +#define MBEDTLS_DHM_RFC7919_FFDHE6144_G_BIN { 0x02 } + +#define MBEDTLS_DHM_RFC7919_FFDHE8192_P_BIN { \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, \ + 0xAD, 0xF8, 0x54, 0x58, 0xA2, 0xBB, 0x4A, 0x9A, \ + 0xAF, 0xDC, 0x56, 0x20, 0x27, 0x3D, 0x3C, 0xF1, \ + 0xD8, 0xB9, 0xC5, 0x83, 0xCE, 0x2D, 0x36, 0x95, \ + 0xA9, 0xE1, 0x36, 0x41, 0x14, 0x64, 0x33, 0xFB, \ + 0xCC, 0x93, 0x9D, 0xCE, 0x24, 0x9B, 0x3E, 0xF9, \ + 0x7D, 0x2F, 0xE3, 0x63, 0x63, 0x0C, 0x75, 0xD8, \ + 0xF6, 0x81, 0xB2, 0x02, 0xAE, 0xC4, 0x61, 0x7A, \ + 0xD3, 0xDF, 0x1E, 0xD5, 0xD5, 0xFD, 0x65, 0x61, \ + 0x24, 0x33, 0xF5, 0x1F, 0x5F, 0x06, 0x6E, 0xD0, \ + 0x85, 0x63, 0x65, 0x55, 0x3D, 0xED, 0x1A, 0xF3, \ + 0xB5, 0x57, 0x13, 0x5E, 0x7F, 0x57, 0xC9, 0x35, \ + 0x98, 0x4F, 0x0C, 0x70, 0xE0, 0xE6, 0x8B, 0x77, \ + 0xE2, 0xA6, 0x89, 0xDA, 0xF3, 0xEF, 0xE8, 0x72, \ + 0x1D, 0xF1, 0x58, 0xA1, 0x36, 0xAD, 0xE7, 0x35, \ + 0x30, 0xAC, 0xCA, 0x4F, 0x48, 0x3A, 0x79, 0x7A, \ + 0xBC, 0x0A, 0xB1, 0x82, 0xB3, 0x24, 0xFB, 0x61, \ + 0xD1, 0x08, 0xA9, 0x4B, 0xB2, 0xC8, 0xE3, 0xFB, \ + 0xB9, 0x6A, 0xDA, 0xB7, 0x60, 0xD7, 0xF4, 0x68, \ + 0x1D, 0x4F, 0x42, 0xA3, 0xDE, 0x39, 0x4D, 0xF4, \ + 0xAE, 0x56, 0xED, 0xE7, 0x63, 0x72, 0xBB, 0x19, \ + 0x0B, 0x07, 0xA7, 0xC8, 0xEE, 0x0A, 0x6D, 0x70, \ + 0x9E, 0x02, 0xFC, 0xE1, 0xCD, 0xF7, 0xE2, 0xEC, \ + 0xC0, 0x34, 0x04, 0xCD, 0x28, 0x34, 0x2F, 0x61, \ + 0x91, 0x72, 0xFE, 0x9C, 0xE9, 0x85, 0x83, 0xFF, \ + 0x8E, 0x4F, 0x12, 0x32, 0xEE, 0xF2, 0x81, 0x83, \ + 0xC3, 0xFE, 0x3B, 0x1B, 0x4C, 0x6F, 0xAD, 0x73, \ + 0x3B, 0xB5, 0xFC, 0xBC, 0x2E, 0xC2, 0x20, 0x05, \ + 0xC5, 0x8E, 0xF1, 0x83, 0x7D, 0x16, 0x83, 0xB2, \ + 0xC6, 0xF3, 0x4A, 0x26, 0xC1, 0xB2, 0xEF, 0xFA, \ + 0x88, 0x6B, 0x42, 0x38, 0x61, 0x1F, 0xCF, 0xDC, \ + 0xDE, 0x35, 0x5B, 0x3B, 0x65, 0x19, 0x03, 0x5B, \ + 0xBC, 0x34, 0xF4, 0xDE, 0xF9, 0x9C, 0x02, 0x38, \ + 0x61, 0xB4, 0x6F, 0xC9, 0xD6, 0xE6, 0xC9, 0x07, \ + 0x7A, 0xD9, 0x1D, 0x26, 0x91, 0xF7, 0xF7, 0xEE, \ + 0x59, 0x8C, 0xB0, 0xFA, 0xC1, 0x86, 0xD9, 0x1C, \ + 0xAE, 0xFE, 0x13, 0x09, 0x85, 0x13, 0x92, 0x70, \ + 0xB4, 0x13, 0x0C, 0x93, 0xBC, 0x43, 0x79, 0x44, \ + 0xF4, 0xFD, 0x44, 0x52, 0xE2, 0xD7, 0x4D, 0xD3, \ + 0x64, 0xF2, 0xE2, 0x1E, 0x71, 0xF5, 0x4B, 0xFF, \ + 0x5C, 0xAE, 0x82, 0xAB, 0x9C, 0x9D, 0xF6, 0x9E, \ + 0xE8, 0x6D, 0x2B, 0xC5, 0x22, 0x36, 0x3A, 0x0D, \ + 0xAB, 0xC5, 0x21, 0x97, 0x9B, 0x0D, 0xEA, 0xDA, \ + 0x1D, 0xBF, 0x9A, 0x42, 0xD5, 0xC4, 0x48, 0x4E, \ + 0x0A, 0xBC, 0xD0, 0x6B, 0xFA, 0x53, 0xDD, 0xEF, \ + 0x3C, 0x1B, 0x20, 0xEE, 0x3F, 0xD5, 0x9D, 0x7C, \ + 0x25, 0xE4, 0x1D, 0x2B, 0x66, 0x9E, 0x1E, 0xF1, \ + 0x6E, 0x6F, 0x52, 0xC3, 0x16, 0x4D, 0xF4, 0xFB, \ + 0x79, 0x30, 0xE9, 0xE4, 0xE5, 0x88, 0x57, 0xB6, \ + 0xAC, 0x7D, 0x5F, 0x42, 0xD6, 0x9F, 0x6D, 0x18, \ + 0x77, 0x63, 0xCF, 0x1D, 0x55, 0x03, 0x40, 0x04, \ + 0x87, 0xF5, 0x5B, 0xA5, 0x7E, 0x31, 0xCC, 0x7A, \ + 0x71, 0x35, 0xC8, 0x86, 0xEF, 0xB4, 0x31, 0x8A, \ + 0xED, 0x6A, 0x1E, 0x01, 0x2D, 0x9E, 0x68, 0x32, \ + 0xA9, 0x07, 0x60, 0x0A, 0x91, 0x81, 0x30, 0xC4, \ + 0x6D, 0xC7, 0x78, 0xF9, 0x71, 0xAD, 0x00, 0x38, \ + 0x09, 0x29, 0x99, 0xA3, 0x33, 0xCB, 0x8B, 0x7A, \ + 0x1A, 0x1D, 0xB9, 0x3D, 0x71, 0x40, 0x00, 0x3C, \ + 0x2A, 0x4E, 0xCE, 0xA9, 0xF9, 0x8D, 0x0A, 0xCC, \ + 0x0A, 0x82, 0x91, 0xCD, 0xCE, 0xC9, 0x7D, 0xCF, \ + 0x8E, 0xC9, 0xB5, 0x5A, 0x7F, 0x88, 0xA4, 0x6B, \ + 0x4D, 0xB5, 0xA8, 0x51, 0xF4, 0x41, 0x82, 0xE1, \ + 0xC6, 0x8A, 0x00, 0x7E, 0x5E, 0x0D, 0xD9, 0x02, \ + 0x0B, 0xFD, 0x64, 0xB6, 0x45, 0x03, 0x6C, 0x7A, \ + 0x4E, 0x67, 0x7D, 0x2C, 0x38, 0x53, 0x2A, 0x3A, \ + 0x23, 0xBA, 0x44, 0x42, 0xCA, 0xF5, 0x3E, 0xA6, \ + 0x3B, 0xB4, 0x54, 0x32, 0x9B, 0x76, 0x24, 0xC8, \ + 0x91, 0x7B, 0xDD, 0x64, 0xB1, 0xC0, 0xFD, 0x4C, \ + 0xB3, 0x8E, 0x8C, 0x33, 0x4C, 0x70, 0x1C, 0x3A, \ + 0xCD, 0xAD, 0x06, 0x57, 0xFC, 0xCF, 0xEC, 0x71, \ + 0x9B, 0x1F, 0x5C, 0x3E, 0x4E, 0x46, 0x04, 0x1F, \ + 0x38, 0x81, 0x47, 0xFB, 0x4C, 0xFD, 0xB4, 0x77, \ + 0xA5, 0x24, 0x71, 0xF7, 0xA9, 0xA9, 0x69, 0x10, \ + 0xB8, 0x55, 0x32, 0x2E, 0xDB, 0x63, 0x40, 0xD8, \ + 0xA0, 0x0E, 0xF0, 0x92, 0x35, 0x05, 0x11, 0xE3, \ + 0x0A, 0xBE, 0xC1, 0xFF, 0xF9, 0xE3, 0xA2, 0x6E, \ + 0x7F, 0xB2, 0x9F, 0x8C, 0x18, 0x30, 0x23, 0xC3, \ + 0x58, 0x7E, 0x38, 0xDA, 0x00, 0x77, 0xD9, 0xB4, \ + 0x76, 0x3E, 0x4E, 0x4B, 0x94, 0xB2, 0xBB, 0xC1, \ + 0x94, 0xC6, 0x65, 0x1E, 0x77, 0xCA, 0xF9, 0x92, \ + 0xEE, 0xAA, 0xC0, 0x23, 0x2A, 0x28, 0x1B, 0xF6, \ + 0xB3, 0xA7, 0x39, 0xC1, 0x22, 0x61, 0x16, 0x82, \ + 0x0A, 0xE8, 0xDB, 0x58, 0x47, 0xA6, 0x7C, 0xBE, \ + 0xF9, 0xC9, 0x09, 0x1B, 0x46, 0x2D, 0x53, 0x8C, \ + 0xD7, 0x2B, 0x03, 0x74, 0x6A, 0xE7, 0x7F, 0x5E, \ + 0x62, 0x29, 0x2C, 0x31, 0x15, 0x62, 0xA8, 0x46, \ + 0x50, 0x5D, 0xC8, 0x2D, 0xB8, 0x54, 0x33, 0x8A, \ + 0xE4, 0x9F, 0x52, 0x35, 0xC9, 0x5B, 0x91, 0x17, \ + 0x8C, 0xCF, 0x2D, 0xD5, 0xCA, 0xCE, 0xF4, 0x03, \ + 0xEC, 0x9D, 0x18, 0x10, 0xC6, 0x27, 0x2B, 0x04, \ + 0x5B, 0x3B, 0x71, 0xF9, 0xDC, 0x6B, 0x80, 0xD6, \ + 0x3F, 0xDD, 0x4A, 0x8E, 0x9A, 0xDB, 0x1E, 0x69, \ + 0x62, 0xA6, 0x95, 0x26, 0xD4, 0x31, 0x61, 0xC1, \ + 0xA4, 0x1D, 0x57, 0x0D, 0x79, 0x38, 0xDA, 0xD4, \ + 0xA4, 0x0E, 0x32, 0x9C, 0xCF, 0xF4, 0x6A, 0xAA, \ + 0x36, 0xAD, 0x00, 0x4C, 0xF6, 0x00, 0xC8, 0x38, \ + 0x1E, 0x42, 0x5A, 0x31, 0xD9, 0x51, 0xAE, 0x64, \ + 0xFD, 0xB2, 0x3F, 0xCE, 0xC9, 0x50, 0x9D, 0x43, \ + 0x68, 0x7F, 0xEB, 0x69, 0xED, 0xD1, 0xCC, 0x5E, \ + 0x0B, 0x8C, 0xC3, 0xBD, 0xF6, 0x4B, 0x10, 0xEF, \ + 0x86, 0xB6, 0x31, 0x42, 0xA3, 0xAB, 0x88, 0x29, \ + 0x55, 0x5B, 0x2F, 0x74, 0x7C, 0x93, 0x26, 0x65, \ + 0xCB, 0x2C, 0x0F, 0x1C, 0xC0, 0x1B, 0xD7, 0x02, \ + 0x29, 0x38, 0x88, 0x39, 0xD2, 0xAF, 0x05, 0xE4, \ + 0x54, 0x50, 0x4A, 0xC7, 0x8B, 0x75, 0x82, 0x82, \ + 0x28, 0x46, 0xC0, 0xBA, 0x35, 0xC3, 0x5F, 0x5C, \ + 0x59, 0x16, 0x0C, 0xC0, 0x46, 0xFD, 0x82, 0x51, \ + 0x54, 0x1F, 0xC6, 0x8C, 0x9C, 0x86, 0xB0, 0x22, \ + 0xBB, 0x70, 0x99, 0x87, 0x6A, 0x46, 0x0E, 0x74, \ + 0x51, 0xA8, 0xA9, 0x31, 0x09, 0x70, 0x3F, 0xEE, \ + 0x1C, 0x21, 0x7E, 0x6C, 0x38, 0x26, 0xE5, 0x2C, \ + 0x51, 0xAA, 0x69, 0x1E, 0x0E, 0x42, 0x3C, 0xFC, \ + 0x99, 0xE9, 0xE3, 0x16, 0x50, 0xC1, 0x21, 0x7B, \ + 0x62, 0x48, 0x16, 0xCD, 0xAD, 0x9A, 0x95, 0xF9, \ + 0xD5, 0xB8, 0x01, 0x94, 0x88, 0xD9, 0xC0, 0xA0, \ + 0xA1, 0xFE, 0x30, 0x75, 0xA5, 0x77, 0xE2, 0x31, \ + 0x83, 0xF8, 0x1D, 0x4A, 0x3F, 0x2F, 0xA4, 0x57, \ + 0x1E, 0xFC, 0x8C, 0xE0, 0xBA, 0x8A, 0x4F, 0xE8, \ + 0xB6, 0x85, 0x5D, 0xFE, 0x72, 0xB0, 0xA6, 0x6E, \ + 0xDE, 0xD2, 0xFB, 0xAB, 0xFB, 0xE5, 0x8A, 0x30, \ + 0xFA, 0xFA, 0xBE, 0x1C, 0x5D, 0x71, 0xA8, 0x7E, \ + 0x2F, 0x74, 0x1E, 0xF8, 0xC1, 0xFE, 0x86, 0xFE, \ + 0xA6, 0xBB, 0xFD, 0xE5, 0x30, 0x67, 0x7F, 0x0D, \ + 0x97, 0xD1, 0x1D, 0x49, 0xF7, 0xA8, 0x44, 0x3D, \ + 0x08, 0x22, 0xE5, 0x06, 0xA9, 0xF4, 0x61, 0x4E, \ + 0x01, 0x1E, 0x2A, 0x94, 0x83, 0x8F, 0xF8, 0x8C, \ + 0xD6, 0x8C, 0x8B, 0xB7, 0xC5, 0xC6, 0x42, 0x4C, \ + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF } + +#define MBEDTLS_DHM_RFC7919_FFDHE8192_G_BIN { 0x02 } + +#endif /* dhm.h */ diff --git a/include/mbedtls/ecdh.h b/include/mbedtls/ecdh.h new file mode 100644 index 0000000..792db79 --- /dev/null +++ b/include/mbedtls/ecdh.h @@ -0,0 +1,441 @@ +/** + * \file ecdh.h + * + * \brief This file contains ECDH definitions and functions. + * + * The Elliptic Curve Diffie-Hellman (ECDH) protocol is an anonymous + * key agreement protocol allowing two parties to establish a shared + * secret over an insecure channel. Each party must have an + * elliptic-curve public–private key pair. + * + * For more information, see <em>NIST SP 800-56A Rev. 2: Recommendation for + * Pair-Wise Key Establishment Schemes Using Discrete Logarithm + * Cryptography</em>. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_ECDH_H +#define MBEDTLS_ECDH_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/ecp.h" + +/* + * Mbed TLS supports two formats for ECDH contexts (#mbedtls_ecdh_context + * defined in `ecdh.h`). For most applications, the choice of format makes + * no difference, since all library functions can work with either format, + * except that the new format is incompatible with MBEDTLS_ECP_RESTARTABLE. + + * The new format used when this option is disabled is smaller + * (56 bytes on a 32-bit platform). In future versions of the library, it + * will support alternative implementations of ECDH operations. + * The new format is incompatible with applications that access + * context fields directly and with restartable ECP operations. + */ + +#if defined(MBEDTLS_ECP_RESTARTABLE) +#define MBEDTLS_ECDH_LEGACY_CONTEXT +#else +#undef MBEDTLS_ECDH_LEGACY_CONTEXT +#endif + +#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED) +#undef MBEDTLS_ECDH_LEGACY_CONTEXT +#include "everest/everest.h" +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Defines the source of the imported EC key. + */ +typedef enum { + MBEDTLS_ECDH_OURS, /**< Our key. */ + MBEDTLS_ECDH_THEIRS, /**< The key of the peer. */ +} mbedtls_ecdh_side; + +#if !defined(MBEDTLS_ECDH_LEGACY_CONTEXT) +/** + * Defines the ECDH implementation used. + * + * Later versions of the library may add new variants, therefore users should + * not make any assumptions about them. + */ +typedef enum { + MBEDTLS_ECDH_VARIANT_NONE = 0, /*!< Implementation not defined. */ + MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0,/*!< The default Mbed TLS implementation */ +#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED) + MBEDTLS_ECDH_VARIANT_EVEREST /*!< Everest implementation */ +#endif +} mbedtls_ecdh_variant; + +/** + * The context used by the default ECDH implementation. + * + * Later versions might change the structure of this context, therefore users + * should not make any assumptions about the structure of + * mbedtls_ecdh_context_mbed. + */ +typedef struct mbedtls_ecdh_context_mbed { + mbedtls_ecp_group MBEDTLS_PRIVATE(grp); /*!< The elliptic curve used. */ + mbedtls_mpi MBEDTLS_PRIVATE(d); /*!< The private key. */ + mbedtls_ecp_point MBEDTLS_PRIVATE(Q); /*!< The public key. */ + mbedtls_ecp_point MBEDTLS_PRIVATE(Qp); /*!< The value of the public key of the peer. */ + mbedtls_mpi MBEDTLS_PRIVATE(z); /*!< The shared secret. */ +#if defined(MBEDTLS_ECP_RESTARTABLE) + mbedtls_ecp_restart_ctx MBEDTLS_PRIVATE(rs); /*!< The restart context for EC computations. */ +#endif +} mbedtls_ecdh_context_mbed; +#endif + +/** + * + * \warning Performing multiple operations concurrently on the same + * ECDSA context is not supported; objects of this type + * should not be shared between multiple threads. + * \brief The ECDH context structure. + */ +typedef struct mbedtls_ecdh_context { +#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT) + mbedtls_ecp_group MBEDTLS_PRIVATE(grp); /*!< The elliptic curve used. */ + mbedtls_mpi MBEDTLS_PRIVATE(d); /*!< The private key. */ + mbedtls_ecp_point MBEDTLS_PRIVATE(Q); /*!< The public key. */ + mbedtls_ecp_point MBEDTLS_PRIVATE(Qp); /*!< The value of the public key of the peer. */ + mbedtls_mpi MBEDTLS_PRIVATE(z); /*!< The shared secret. */ + int MBEDTLS_PRIVATE(point_format); /*!< The format of point export in TLS messages. */ + mbedtls_ecp_point MBEDTLS_PRIVATE(Vi); /*!< The blinding value. */ + mbedtls_ecp_point MBEDTLS_PRIVATE(Vf); /*!< The unblinding value. */ + mbedtls_mpi MBEDTLS_PRIVATE(_d); /*!< The previous \p d. */ +#if defined(MBEDTLS_ECP_RESTARTABLE) + int MBEDTLS_PRIVATE(restart_enabled); /*!< The flag for restartable mode. */ + mbedtls_ecp_restart_ctx MBEDTLS_PRIVATE(rs); /*!< The restart context for EC computations. */ +#endif /* MBEDTLS_ECP_RESTARTABLE */ +#else + uint8_t MBEDTLS_PRIVATE(point_format); /*!< The format of point export in TLS messages + as defined in RFC 4492. */ + mbedtls_ecp_group_id MBEDTLS_PRIVATE(grp_id);/*!< The elliptic curve used. */ + mbedtls_ecdh_variant MBEDTLS_PRIVATE(var); /*!< The ECDH implementation/structure used. */ + union { + mbedtls_ecdh_context_mbed MBEDTLS_PRIVATE(mbed_ecdh); +#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED) + mbedtls_ecdh_context_everest MBEDTLS_PRIVATE(everest_ecdh); +#endif + } MBEDTLS_PRIVATE(ctx); /*!< Implementation-specific context. The + context in use is specified by the \c var + field. */ +#if defined(MBEDTLS_ECP_RESTARTABLE) + uint8_t MBEDTLS_PRIVATE(restart_enabled); /*!< The flag for restartable mode. Functions of + an alternative implementation not supporting + restartable mode must return + MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED error + if this flag is set. */ +#endif /* MBEDTLS_ECP_RESTARTABLE */ +#endif /* MBEDTLS_ECDH_LEGACY_CONTEXT */ +} +mbedtls_ecdh_context; + +/** + * \brief Check whether a given group can be used for ECDH. + * + * \param gid The ECP group ID to check. + * + * \return \c 1 if the group can be used, \c 0 otherwise + */ +int mbedtls_ecdh_can_do(mbedtls_ecp_group_id gid); + +/** + * \brief This function generates an ECDH keypair on an elliptic + * curve. + * + * This function performs the first of two core computations + * implemented during the ECDH key exchange. The second core + * computation is performed by mbedtls_ecdh_compute_shared(). + * + * \see ecp.h + * + * \param grp The ECP group to use. This must be initialized and have + * domain parameters loaded, for example through + * mbedtls_ecp_load() or mbedtls_ecp_tls_read_group(). + * \param d The destination MPI (private key). + * This must be initialized. + * \param Q The destination point (public key). + * This must be initialized. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL in case \p f_rng doesn't need a context argument. + * + * \return \c 0 on success. + * \return Another \c MBEDTLS_ERR_ECP_XXX or + * \c MBEDTLS_MPI_XXX error code on failure. + */ +int mbedtls_ecdh_gen_public(mbedtls_ecp_group *grp, mbedtls_mpi *d, mbedtls_ecp_point *Q, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief This function computes the shared secret. + * + * This function performs the second of two core computations + * implemented during the ECDH key exchange. The first core + * computation is performed by mbedtls_ecdh_gen_public(). + * + * \see ecp.h + * + * \note If \p f_rng is not NULL, it is used to implement + * countermeasures against side-channel attacks. + * For more information, see mbedtls_ecp_mul(). + * + * \param grp The ECP group to use. This must be initialized and have + * domain parameters loaded, for example through + * mbedtls_ecp_load() or mbedtls_ecp_tls_read_group(). + * \param z The destination MPI (shared secret). + * This must be initialized. + * \param Q The public key from another party. + * This must be initialized. + * \param d Our secret exponent (private key). + * This must be initialized. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL if \p f_rng is \c NULL or doesn't need a + * context argument. + * + * \return \c 0 on success. + * \return Another \c MBEDTLS_ERR_ECP_XXX or + * \c MBEDTLS_MPI_XXX error code on failure. + */ +int mbedtls_ecdh_compute_shared(mbedtls_ecp_group *grp, mbedtls_mpi *z, + const mbedtls_ecp_point *Q, const mbedtls_mpi *d, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief This function initializes an ECDH context. + * + * \param ctx The ECDH context to initialize. This must not be \c NULL. + */ +void mbedtls_ecdh_init(mbedtls_ecdh_context *ctx); + +/** + * \brief This function sets up the ECDH context with the information + * given. + * + * This function should be called after mbedtls_ecdh_init() but + * before mbedtls_ecdh_make_params(). There is no need to call + * this function before mbedtls_ecdh_read_params(). + * + * This is the first function used by a TLS server for ECDHE + * ciphersuites. + * + * \param ctx The ECDH context to set up. This must be initialized. + * \param grp_id The group id of the group to set up the context for. + * + * \return \c 0 on success. + */ +int mbedtls_ecdh_setup(mbedtls_ecdh_context *ctx, + mbedtls_ecp_group_id grp_id); + +/** + * \brief This function frees a context. + * + * \param ctx The context to free. This may be \c NULL, in which + * case this function does nothing. If it is not \c NULL, + * it must point to an initialized ECDH context. + */ +void mbedtls_ecdh_free(mbedtls_ecdh_context *ctx); + +/** + * \brief This function generates an EC key pair and exports its + * in the format used in a TLS ServerKeyExchange handshake + * message. + * + * This is the second function used by a TLS server for ECDHE + * ciphersuites. (It is called after mbedtls_ecdh_setup().) + * + * \see ecp.h + * + * \param ctx The ECDH context to use. This must be initialized + * and bound to a group, for example via mbedtls_ecdh_setup(). + * \param olen The address at which to store the number of Bytes written. + * \param buf The destination buffer. This must be a writable buffer of + * length \p blen Bytes. + * \param blen The length of the destination buffer \p buf in Bytes. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL in case \p f_rng doesn't need a context argument. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of + * operations was reached: see \c mbedtls_ecp_set_max_ops(). + * \return Another \c MBEDTLS_ERR_ECP_XXX error code on failure. + */ +int mbedtls_ecdh_make_params(mbedtls_ecdh_context *ctx, size_t *olen, + unsigned char *buf, size_t blen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief This function parses the ECDHE parameters in a + * TLS ServerKeyExchange handshake message. + * + * \note In a TLS handshake, this is the how the client + * sets up its ECDHE context from the server's public + * ECDHE key material. + * + * \see ecp.h + * + * \param ctx The ECDHE context to use. This must be initialized. + * \param buf On input, \c *buf must be the start of the input buffer. + * On output, \c *buf is updated to point to the end of the + * data that has been read. On success, this is the first byte + * past the end of the ServerKeyExchange parameters. + * On error, this is the point at which an error has been + * detected, which is usually not useful except to debug + * failures. + * \param end The end of the input buffer. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_ECP_XXX error code on failure. + * + */ +int mbedtls_ecdh_read_params(mbedtls_ecdh_context *ctx, + const unsigned char **buf, + const unsigned char *end); + +/** + * \brief This function sets up an ECDH context from an EC key. + * + * It is used by clients and servers in place of the + * ServerKeyEchange for static ECDH, and imports ECDH + * parameters from the EC key information of a certificate. + * + * \see ecp.h + * + * \param ctx The ECDH context to set up. This must be initialized. + * \param key The EC key to use. This must be initialized. + * \param side Defines the source of the key. Possible values are: + * - #MBEDTLS_ECDH_OURS: The key is ours. + * - #MBEDTLS_ECDH_THEIRS: The key is that of the peer. + * + * \return \c 0 on success. + * \return Another \c MBEDTLS_ERR_ECP_XXX error code on failure. + * + */ +int mbedtls_ecdh_get_params(mbedtls_ecdh_context *ctx, + const mbedtls_ecp_keypair *key, + mbedtls_ecdh_side side); + +/** + * \brief This function generates a public key and exports it + * as a TLS ClientKeyExchange payload. + * + * This is the second function used by a TLS client for ECDH(E) + * ciphersuites. + * + * \see ecp.h + * + * \param ctx The ECDH context to use. This must be initialized + * and bound to a group, the latter usually by + * mbedtls_ecdh_read_params(). + * \param olen The address at which to store the number of Bytes written. + * This must not be \c NULL. + * \param buf The destination buffer. This must be a writable buffer + * of length \p blen Bytes. + * \param blen The size of the destination buffer \p buf in Bytes. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL in case \p f_rng doesn't need a context argument. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of + * operations was reached: see \c mbedtls_ecp_set_max_ops(). + * \return Another \c MBEDTLS_ERR_ECP_XXX error code on failure. + */ +int mbedtls_ecdh_make_public(mbedtls_ecdh_context *ctx, size_t *olen, + unsigned char *buf, size_t blen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief This function parses and processes the ECDHE payload of a + * TLS ClientKeyExchange message. + * + * This is the third function used by a TLS server for ECDH(E) + * ciphersuites. (It is called after mbedtls_ecdh_setup() and + * mbedtls_ecdh_make_params().) + * + * \see ecp.h + * + * \param ctx The ECDH context to use. This must be initialized + * and bound to a group, for example via mbedtls_ecdh_setup(). + * \param buf The pointer to the ClientKeyExchange payload. This must + * be a readable buffer of length \p blen Bytes. + * \param blen The length of the input buffer \p buf in Bytes. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_ECP_XXX error code on failure. + */ +int mbedtls_ecdh_read_public(mbedtls_ecdh_context *ctx, + const unsigned char *buf, size_t blen); + +/** + * \brief This function derives and exports the shared secret. + * + * This is the last function used by both TLS client + * and servers. + * + * \note If \p f_rng is not NULL, it is used to implement + * countermeasures against side-channel attacks. + * For more information, see mbedtls_ecp_mul(). + * + * \see ecp.h + + * \param ctx The ECDH context to use. This must be initialized + * and have its own private key generated and the peer's + * public key imported. + * \param olen The address at which to store the total number of + * Bytes written on success. This must not be \c NULL. + * \param buf The buffer to write the generated shared key to. This + * must be a writable buffer of size \p blen Bytes. + * \param blen The length of the destination buffer \p buf in Bytes. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG context. This may be \c NULL if \p f_rng + * doesn't need a context argument. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of + * operations was reached: see \c mbedtls_ecp_set_max_ops(). + * \return Another \c MBEDTLS_ERR_ECP_XXX error code on failure. + */ +int mbedtls_ecdh_calc_secret(mbedtls_ecdh_context *ctx, size_t *olen, + unsigned char *buf, size_t blen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +#if defined(MBEDTLS_ECP_RESTARTABLE) +/** + * \brief This function enables restartable EC computations for this + * context. (Default: disabled.) + * + * \see \c mbedtls_ecp_set_max_ops() + * + * \note It is not possible to safely disable restartable + * computations once enabled, except by free-ing the context, + * which cancels possible in-progress operations. + * + * \param ctx The ECDH context to use. This must be initialized. + */ +void mbedtls_ecdh_enable_restart(mbedtls_ecdh_context *ctx); +#endif /* MBEDTLS_ECP_RESTARTABLE */ + +#ifdef __cplusplus +} +#endif + +#endif /* ecdh.h */ diff --git a/include/mbedtls/ecdsa.h b/include/mbedtls/ecdsa.h new file mode 100644 index 0000000..2ecf349 --- /dev/null +++ b/include/mbedtls/ecdsa.h @@ -0,0 +1,671 @@ +/** + * \file ecdsa.h + * + * \brief This file contains ECDSA definitions and functions. + * + * The Elliptic Curve Digital Signature Algorithm (ECDSA) is defined in + * <em>Standards for Efficient Cryptography Group (SECG): + * SEC1 Elliptic Curve Cryptography</em>. + * The use of ECDSA for TLS is defined in <em>RFC-4492: Elliptic Curve + * Cryptography (ECC) Cipher Suites for Transport Layer Security (TLS)</em>. + * + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_ECDSA_H +#define MBEDTLS_ECDSA_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/ecp.h" +#include "mbedtls/md.h" + +/** + * \brief Maximum ECDSA signature size for a given curve bit size + * + * \param bits Curve size in bits + * \return Maximum signature size in bytes + * + * \note This macro returns a compile-time constant if its argument + * is one. It may evaluate its argument multiple times. + */ +/* + * Ecdsa-Sig-Value ::= SEQUENCE { + * r INTEGER, + * s INTEGER + * } + * + * For each of r and s, the value (V) may include an extra initial "0" bit. + */ +#define MBEDTLS_ECDSA_MAX_SIG_LEN(bits) \ + (/*T,L of SEQUENCE*/ ((bits) >= 61 * 8 ? 3 : 2) + \ + /*T,L of r,s*/ 2 * (((bits) >= 127 * 8 ? 3 : 2) + \ + /*V of r,s*/ ((bits) + 8) / 8)) + +/** The maximal size of an ECDSA signature in Bytes. */ +#define MBEDTLS_ECDSA_MAX_LEN MBEDTLS_ECDSA_MAX_SIG_LEN(MBEDTLS_ECP_MAX_BITS) + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief The ECDSA context structure. + * + * \warning Performing multiple operations concurrently on the same + * ECDSA context is not supported; objects of this type + * should not be shared between multiple threads. + * + * \note pk_wrap module assumes that "ecdsa_context" is identical + * to "ecp_keypair" (see for example structure + * "mbedtls_eckey_info" where ECDSA sign/verify functions + * are used also for EC key) + */ +typedef mbedtls_ecp_keypair mbedtls_ecdsa_context; + +#if defined(MBEDTLS_ECP_RESTARTABLE) + +/** + * \brief Internal restart context for ecdsa_verify() + * + * \note Opaque struct, defined in ecdsa.c + */ +typedef struct mbedtls_ecdsa_restart_ver mbedtls_ecdsa_restart_ver_ctx; + +/** + * \brief Internal restart context for ecdsa_sign() + * + * \note Opaque struct, defined in ecdsa.c + */ +typedef struct mbedtls_ecdsa_restart_sig mbedtls_ecdsa_restart_sig_ctx; + +#if defined(MBEDTLS_ECDSA_DETERMINISTIC) +/** + * \brief Internal restart context for ecdsa_sign_det() + * + * \note Opaque struct, defined in ecdsa.c + */ +typedef struct mbedtls_ecdsa_restart_det mbedtls_ecdsa_restart_det_ctx; +#endif + +/** + * \brief General context for resuming ECDSA operations + */ +typedef struct { + mbedtls_ecp_restart_ctx MBEDTLS_PRIVATE(ecp); /*!< base context for ECP restart and + shared administrative info */ + mbedtls_ecdsa_restart_ver_ctx *MBEDTLS_PRIVATE(ver); /*!< ecdsa_verify() sub-context */ + mbedtls_ecdsa_restart_sig_ctx *MBEDTLS_PRIVATE(sig); /*!< ecdsa_sign() sub-context */ +#if defined(MBEDTLS_ECDSA_DETERMINISTIC) + mbedtls_ecdsa_restart_det_ctx *MBEDTLS_PRIVATE(det); /*!< ecdsa_sign_det() sub-context */ +#endif +} mbedtls_ecdsa_restart_ctx; + +#else /* MBEDTLS_ECP_RESTARTABLE */ + +/* Now we can declare functions that take a pointer to that */ +typedef void mbedtls_ecdsa_restart_ctx; + +#endif /* MBEDTLS_ECP_RESTARTABLE */ + +/** + * \brief This function checks whether a given group can be used + * for ECDSA. + * + * \param gid The ECP group ID to check. + * + * \return \c 1 if the group can be used, \c 0 otherwise + */ +int mbedtls_ecdsa_can_do(mbedtls_ecp_group_id gid); + +/** + * \brief This function computes the ECDSA signature of a + * previously-hashed message. + * + * \note The deterministic version implemented in + * mbedtls_ecdsa_sign_det_ext() is usually preferred. + * + * \note If the bitlength of the message hash is larger than the + * bitlength of the group order, then the hash is truncated + * as defined in <em>Standards for Efficient Cryptography Group + * (SECG): SEC1 Elliptic Curve Cryptography</em>, section + * 4.1.3, step 5. + * + * \see ecp.h + * + * \param grp The context for the elliptic curve to use. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param r The MPI context in which to store the first part + * the signature. This must be initialized. + * \param s The MPI context in which to store the second part + * the signature. This must be initialized. + * \param d The private signing key. This must be initialized. + * \param buf The content to be signed. This is usually the hash of + * the original data to be signed. This must be a readable + * buffer of length \p blen Bytes. It may be \c NULL if + * \p blen is zero. + * \param blen The length of \p buf in Bytes. + * \param f_rng The RNG function. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL if \p f_rng doesn't need a context parameter. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_ECP_XXX + * or \c MBEDTLS_MPI_XXX error code on failure. + */ +int mbedtls_ecdsa_sign(mbedtls_ecp_group *grp, mbedtls_mpi *r, mbedtls_mpi *s, + const mbedtls_mpi *d, const unsigned char *buf, size_t blen, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng); + +#if defined(MBEDTLS_ECDSA_DETERMINISTIC) +/** + * \brief This function computes the ECDSA signature of a + * previously-hashed message, deterministic version. + * + * For more information, see <em>RFC-6979: Deterministic + * Usage of the Digital Signature Algorithm (DSA) and Elliptic + * Curve Digital Signature Algorithm (ECDSA)</em>. + * + * \note If the bitlength of the message hash is larger than the + * bitlength of the group order, then the hash is truncated as + * defined in <em>Standards for Efficient Cryptography Group + * (SECG): SEC1 Elliptic Curve Cryptography</em>, section + * 4.1.3, step 5. + * + * \see ecp.h + * + * \param grp The context for the elliptic curve to use. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param r The MPI context in which to store the first part + * the signature. This must be initialized. + * \param s The MPI context in which to store the second part + * the signature. This must be initialized. + * \param d The private signing key. This must be initialized + * and setup, for example through mbedtls_ecp_gen_privkey(). + * \param buf The hashed content to be signed. This must be a readable + * buffer of length \p blen Bytes. It may be \c NULL if + * \p blen is zero. + * \param blen The length of \p buf in Bytes. + * \param md_alg The hash algorithm used to hash the original data. + * \param f_rng_blind The RNG function used for blinding. This must not be + * \c NULL. + * \param p_rng_blind The RNG context to be passed to \p f_rng_blind. This + * may be \c NULL if \p f_rng_blind doesn't need a context + * parameter. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_MPI_XXX + * error code on failure. + */ +int mbedtls_ecdsa_sign_det_ext(mbedtls_ecp_group *grp, mbedtls_mpi *r, + mbedtls_mpi *s, const mbedtls_mpi *d, + const unsigned char *buf, size_t blen, + mbedtls_md_type_t md_alg, + int (*f_rng_blind)(void *, unsigned char *, size_t), + void *p_rng_blind); +#endif /* MBEDTLS_ECDSA_DETERMINISTIC */ + +#if !defined(MBEDTLS_ECDSA_SIGN_ALT) +/** + * \brief This function computes the ECDSA signature of a + * previously-hashed message, in a restartable way. + * + * \note The deterministic version implemented in + * mbedtls_ecdsa_sign_det_restartable() is usually + * preferred. + * + * \note This function is like \c mbedtls_ecdsa_sign() but + * it can return early and restart according to the + * limit set with \c mbedtls_ecp_set_max_ops() to + * reduce blocking. + * + * \note If the bitlength of the message hash is larger + * than the bitlength of the group order, then the + * hash is truncated as defined in <em>Standards for + * Efficient Cryptography Group (SECG): SEC1 Elliptic + * Curve Cryptography</em>, section 4.1.3, step 5. + * + * \see ecp.h + * + * \param grp The context for the elliptic curve to use. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param r The MPI context in which to store the first part + * the signature. This must be initialized. + * \param s The MPI context in which to store the second part + * the signature. This must be initialized. + * \param d The private signing key. This must be initialized + * and setup, for example through + * mbedtls_ecp_gen_privkey(). + * \param buf The hashed content to be signed. This must be a readable + * buffer of length \p blen Bytes. It may be \c NULL if + * \p blen is zero. + * \param blen The length of \p buf in Bytes. + * \param f_rng The RNG function. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL if \p f_rng doesn't need a context parameter. + * \param f_rng_blind The RNG function used for blinding. This must not be + * \c NULL. + * \param p_rng_blind The RNG context to be passed to \p f_rng. This may be + * \c NULL if \p f_rng doesn't need a context parameter. + * \param rs_ctx The restart context to use. This may be \c NULL + * to disable restarting. If it is not \c NULL, it + * must point to an initialized restart context. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of + * operations was reached: see \c + * mbedtls_ecp_set_max_ops(). + * \return Another \c MBEDTLS_ERR_ECP_XXX, \c + * MBEDTLS_ERR_MPI_XXX or \c MBEDTLS_ERR_ASN1_XXX + * error code on failure. + */ +int mbedtls_ecdsa_sign_restartable( + mbedtls_ecp_group *grp, + mbedtls_mpi *r, mbedtls_mpi *s, + const mbedtls_mpi *d, + const unsigned char *buf, size_t blen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + int (*f_rng_blind)(void *, unsigned char *, size_t), + void *p_rng_blind, + mbedtls_ecdsa_restart_ctx *rs_ctx); + +#endif /* !MBEDTLS_ECDSA_SIGN_ALT */ + +#if defined(MBEDTLS_ECDSA_DETERMINISTIC) + +/** + * \brief This function computes the ECDSA signature of a + * previously-hashed message, in a restartable way. + * + * \note This function is like \c + * mbedtls_ecdsa_sign_det_ext() but it can return + * early and restart according to the limit set with + * \c mbedtls_ecp_set_max_ops() to reduce blocking. + * + * \note If the bitlength of the message hash is larger + * than the bitlength of the group order, then the + * hash is truncated as defined in <em>Standards for + * Efficient Cryptography Group (SECG): SEC1 Elliptic + * Curve Cryptography</em>, section 4.1.3, step 5. + * + * \see ecp.h + * + * \param grp The context for the elliptic curve to use. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param r The MPI context in which to store the first part + * the signature. This must be initialized. + * \param s The MPI context in which to store the second part + * the signature. This must be initialized. + * \param d The private signing key. This must be initialized + * and setup, for example through + * mbedtls_ecp_gen_privkey(). + * \param buf The hashed content to be signed. This must be a readable + * buffer of length \p blen Bytes. It may be \c NULL if + * \p blen is zero. + * \param blen The length of \p buf in Bytes. + * \param md_alg The hash algorithm used to hash the original data. + * \param f_rng_blind The RNG function used for blinding. This must not be + * \c NULL. + * \param p_rng_blind The RNG context to be passed to \p f_rng_blind. This may be + * \c NULL if \p f_rng_blind doesn't need a context parameter. + * \param rs_ctx The restart context to use. This may be \c NULL + * to disable restarting. If it is not \c NULL, it + * must point to an initialized restart context. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of + * operations was reached: see \c + * mbedtls_ecp_set_max_ops(). + * \return Another \c MBEDTLS_ERR_ECP_XXX, \c + * MBEDTLS_ERR_MPI_XXX or \c MBEDTLS_ERR_ASN1_XXX + * error code on failure. + */ +int mbedtls_ecdsa_sign_det_restartable( + mbedtls_ecp_group *grp, + mbedtls_mpi *r, mbedtls_mpi *s, + const mbedtls_mpi *d, const unsigned char *buf, size_t blen, + mbedtls_md_type_t md_alg, + int (*f_rng_blind)(void *, unsigned char *, size_t), + void *p_rng_blind, + mbedtls_ecdsa_restart_ctx *rs_ctx); + +#endif /* MBEDTLS_ECDSA_DETERMINISTIC */ + +/** + * \brief This function verifies the ECDSA signature of a + * previously-hashed message. + * + * \note If the bitlength of the message hash is larger than the + * bitlength of the group order, then the hash is truncated as + * defined in <em>Standards for Efficient Cryptography Group + * (SECG): SEC1 Elliptic Curve Cryptography</em>, section + * 4.1.4, step 3. + * + * \see ecp.h + * + * \param grp The ECP group to use. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param buf The hashed content that was signed. This must be a readable + * buffer of length \p blen Bytes. It may be \c NULL if + * \p blen is zero. + * \param blen The length of \p buf in Bytes. + * \param Q The public key to use for verification. This must be + * initialized and setup. + * \param r The first integer of the signature. + * This must be initialized. + * \param s The second integer of the signature. + * This must be initialized. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_MPI_XXX + * error code on failure. + */ +int mbedtls_ecdsa_verify(mbedtls_ecp_group *grp, + const unsigned char *buf, size_t blen, + const mbedtls_ecp_point *Q, const mbedtls_mpi *r, + const mbedtls_mpi *s); + +#if !defined(MBEDTLS_ECDSA_VERIFY_ALT) +/** + * \brief This function verifies the ECDSA signature of a + * previously-hashed message, in a restartable manner + * + * \note If the bitlength of the message hash is larger than the + * bitlength of the group order, then the hash is truncated as + * defined in <em>Standards for Efficient Cryptography Group + * (SECG): SEC1 Elliptic Curve Cryptography</em>, section + * 4.1.4, step 3. + * + * \see ecp.h + * + * \param grp The ECP group to use. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param buf The hashed content that was signed. This must be a readable + * buffer of length \p blen Bytes. It may be \c NULL if + * \p blen is zero. + * \param blen The length of \p buf in Bytes. + * \param Q The public key to use for verification. This must be + * initialized and setup. + * \param r The first integer of the signature. + * This must be initialized. + * \param s The second integer of the signature. + * This must be initialized. + * \param rs_ctx The restart context to use. This may be \c NULL to disable + * restarting. If it is not \c NULL, it must point to an + * initialized restart context. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of + * operations was reached: see \c mbedtls_ecp_set_max_ops(). + * \return An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_MPI_XXX + * error code on failure. + */ +int mbedtls_ecdsa_verify_restartable(mbedtls_ecp_group *grp, + const unsigned char *buf, size_t blen, + const mbedtls_ecp_point *Q, + const mbedtls_mpi *r, + const mbedtls_mpi *s, + mbedtls_ecdsa_restart_ctx *rs_ctx); + +#endif /* !MBEDTLS_ECDSA_VERIFY_ALT */ + +/** + * \brief This function computes the ECDSA signature and writes it + * to a buffer, serialized as defined in <em>RFC-4492: + * Elliptic Curve Cryptography (ECC) Cipher Suites for + * Transport Layer Security (TLS)</em>. + * + * \warning It is not thread-safe to use the same context in + * multiple threads. + * + * \note The deterministic version is used if + * #MBEDTLS_ECDSA_DETERMINISTIC is defined. For more + * information, see <em>RFC-6979: Deterministic Usage + * of the Digital Signature Algorithm (DSA) and Elliptic + * Curve Digital Signature Algorithm (ECDSA)</em>. + * + * \note If the bitlength of the message hash is larger than the + * bitlength of the group order, then the hash is truncated as + * defined in <em>Standards for Efficient Cryptography Group + * (SECG): SEC1 Elliptic Curve Cryptography</em>, section + * 4.1.3, step 5. + * + * \see ecp.h + * + * \param ctx The ECDSA context to use. This must be initialized + * and have a group and private key bound to it, for example + * via mbedtls_ecdsa_genkey() or mbedtls_ecdsa_from_keypair(). + * \param md_alg The message digest that was used to hash the message. + * \param hash The message hash to be signed. This must be a readable + * buffer of length \p hlen Bytes. + * \param hlen The length of the hash \p hash in Bytes. + * \param sig The buffer to which to write the signature. This must be a + * writable buffer of length at least twice as large as the + * size of the curve used, plus 9. For example, 73 Bytes if + * a 256-bit curve is used. A buffer length of + * #MBEDTLS_ECDSA_MAX_LEN is always safe. + * \param sig_size The size of the \p sig buffer in bytes. + * \param slen The address at which to store the actual length of + * the signature written. Must not be \c NULL. + * \param f_rng The RNG function. This must not be \c NULL if + * #MBEDTLS_ECDSA_DETERMINISTIC is unset. Otherwise, + * it is used only for blinding and may be set to \c NULL, but + * doing so is DEPRECATED. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL if \p f_rng is \c NULL or doesn't use a context. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_ECP_XXX, \c MBEDTLS_ERR_MPI_XXX or + * \c MBEDTLS_ERR_ASN1_XXX error code on failure. + */ +int mbedtls_ecdsa_write_signature(mbedtls_ecdsa_context *ctx, + mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hlen, + unsigned char *sig, size_t sig_size, size_t *slen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief This function computes the ECDSA signature and writes it + * to a buffer, in a restartable way. + * + * \see \c mbedtls_ecdsa_write_signature() + * + * \note This function is like \c mbedtls_ecdsa_write_signature() + * but it can return early and restart according to the limit + * set with \c mbedtls_ecp_set_max_ops() to reduce blocking. + * + * \param ctx The ECDSA context to use. This must be initialized + * and have a group and private key bound to it, for example + * via mbedtls_ecdsa_genkey() or mbedtls_ecdsa_from_keypair(). + * \param md_alg The message digest that was used to hash the message. + * \param hash The message hash to be signed. This must be a readable + * buffer of length \p hlen Bytes. + * \param hlen The length of the hash \p hash in Bytes. + * \param sig The buffer to which to write the signature. This must be a + * writable buffer of length at least twice as large as the + * size of the curve used, plus 9. For example, 73 Bytes if + * a 256-bit curve is used. A buffer length of + * #MBEDTLS_ECDSA_MAX_LEN is always safe. + * \param sig_size The size of the \p sig buffer in bytes. + * \param slen The address at which to store the actual length of + * the signature written. Must not be \c NULL. + * \param f_rng The RNG function. This must not be \c NULL if + * #MBEDTLS_ECDSA_DETERMINISTIC is unset. Otherwise, + * it is unused and may be set to \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL if \p f_rng is \c NULL or doesn't use a context. + * \param rs_ctx The restart context to use. This may be \c NULL to disable + * restarting. If it is not \c NULL, it must point to an + * initialized restart context. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of + * operations was reached: see \c mbedtls_ecp_set_max_ops(). + * \return Another \c MBEDTLS_ERR_ECP_XXX, \c MBEDTLS_ERR_MPI_XXX or + * \c MBEDTLS_ERR_ASN1_XXX error code on failure. + */ +int mbedtls_ecdsa_write_signature_restartable(mbedtls_ecdsa_context *ctx, + mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hlen, + unsigned char *sig, size_t sig_size, size_t *slen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + mbedtls_ecdsa_restart_ctx *rs_ctx); + +/** + * \brief This function reads and verifies an ECDSA signature. + * + * \note If the bitlength of the message hash is larger than the + * bitlength of the group order, then the hash is truncated as + * defined in <em>Standards for Efficient Cryptography Group + * (SECG): SEC1 Elliptic Curve Cryptography</em>, section + * 4.1.4, step 3. + * + * \see ecp.h + * + * \param ctx The ECDSA context to use. This must be initialized + * and have a group and public key bound to it. + * \param hash The message hash that was signed. This must be a readable + * buffer of length \p hlen Bytes. + * \param hlen The size of the hash \p hash. + * \param sig The signature to read and verify. This must be a readable + * buffer of length \p slen Bytes. + * \param slen The size of \p sig in Bytes. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if signature is invalid. + * \return #MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH if there is a valid + * signature in \p sig, but its length is less than \p siglen. + * \return An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_ERR_MPI_XXX + * error code on failure for any other reason. + */ +int mbedtls_ecdsa_read_signature(mbedtls_ecdsa_context *ctx, + const unsigned char *hash, size_t hlen, + const unsigned char *sig, size_t slen); + +/** + * \brief This function reads and verifies an ECDSA signature, + * in a restartable way. + * + * \see \c mbedtls_ecdsa_read_signature() + * + * \note This function is like \c mbedtls_ecdsa_read_signature() + * but it can return early and restart according to the limit + * set with \c mbedtls_ecp_set_max_ops() to reduce blocking. + * + * \param ctx The ECDSA context to use. This must be initialized + * and have a group and public key bound to it. + * \param hash The message hash that was signed. This must be a readable + * buffer of length \p hlen Bytes. + * \param hlen The size of the hash \p hash. + * \param sig The signature to read and verify. This must be a readable + * buffer of length \p slen Bytes. + * \param slen The size of \p sig in Bytes. + * \param rs_ctx The restart context to use. This may be \c NULL to disable + * restarting. If it is not \c NULL, it must point to an + * initialized restart context. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if signature is invalid. + * \return #MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH if there is a valid + * signature in \p sig, but its length is less than \p siglen. + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of + * operations was reached: see \c mbedtls_ecp_set_max_ops(). + * \return Another \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_ERR_MPI_XXX + * error code on failure for any other reason. + */ +int mbedtls_ecdsa_read_signature_restartable(mbedtls_ecdsa_context *ctx, + const unsigned char *hash, size_t hlen, + const unsigned char *sig, size_t slen, + mbedtls_ecdsa_restart_ctx *rs_ctx); + +/** + * \brief This function generates an ECDSA keypair on the given curve. + * + * \see ecp.h + * + * \param ctx The ECDSA context to store the keypair in. + * This must be initialized. + * \param gid The elliptic curve to use. One of the various + * \c MBEDTLS_ECP_DP_XXX macros depending on configuration. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL if \p f_rng doesn't need a context argument. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_ECP_XXX code on failure. + */ +int mbedtls_ecdsa_genkey(mbedtls_ecdsa_context *ctx, mbedtls_ecp_group_id gid, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng); + +/** + * \brief This function sets up an ECDSA context from an EC key pair. + * + * \see ecp.h + * + * \param ctx The ECDSA context to setup. This must be initialized. + * \param key The EC key to use. This must be initialized and hold + * a private-public key pair or a public key. In the former + * case, the ECDSA context may be used for signature creation + * and verification after this call. In the latter case, it + * may be used for signature verification. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_ECP_XXX code on failure. + */ +int mbedtls_ecdsa_from_keypair(mbedtls_ecdsa_context *ctx, + const mbedtls_ecp_keypair *key); + +/** + * \brief This function initializes an ECDSA context. + * + * \param ctx The ECDSA context to initialize. + * This must not be \c NULL. + */ +void mbedtls_ecdsa_init(mbedtls_ecdsa_context *ctx); + +/** + * \brief This function frees an ECDSA context. + * + * \param ctx The ECDSA context to free. This may be \c NULL, + * in which case this function does nothing. If it + * is not \c NULL, it must be initialized. + */ +void mbedtls_ecdsa_free(mbedtls_ecdsa_context *ctx); + +#if defined(MBEDTLS_ECP_RESTARTABLE) +/** + * \brief Initialize a restart context. + * + * \param ctx The restart context to initialize. + * This must not be \c NULL. + */ +void mbedtls_ecdsa_restart_init(mbedtls_ecdsa_restart_ctx *ctx); + +/** + * \brief Free the components of a restart context. + * + * \param ctx The restart context to free. This may be \c NULL, + * in which case this function does nothing. If it + * is not \c NULL, it must be initialized. + */ +void mbedtls_ecdsa_restart_free(mbedtls_ecdsa_restart_ctx *ctx); +#endif /* MBEDTLS_ECP_RESTARTABLE */ + +#ifdef __cplusplus +} +#endif + +#endif /* ecdsa.h */ diff --git a/include/mbedtls/ecjpake.h b/include/mbedtls/ecjpake.h new file mode 100644 index 0000000..c2148a2 --- /dev/null +++ b/include/mbedtls/ecjpake.h @@ -0,0 +1,298 @@ +/** + * \file ecjpake.h + * + * \brief Elliptic curve J-PAKE + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_ECJPAKE_H +#define MBEDTLS_ECJPAKE_H +#include "mbedtls/private_access.h" + +/* + * J-PAKE is a password-authenticated key exchange that allows deriving a + * strong shared secret from a (potentially low entropy) pre-shared + * passphrase, with forward secrecy and mutual authentication. + * https://en.wikipedia.org/wiki/Password_Authenticated_Key_Exchange_by_Juggling + * + * This file implements the Elliptic Curve variant of J-PAKE, + * as defined in Chapter 7.4 of the Thread v1.0 Specification, + * available to members of the Thread Group http://threadgroup.org/ + * + * As the J-PAKE algorithm is inherently symmetric, so is our API. + * Each party needs to send its first round message, in any order, to the + * other party, then each sends its second round message, in any order. + * The payloads are serialized in a way suitable for use in TLS, but could + * also be use outside TLS. + */ +#include "mbedtls/build_info.h" + +#include "mbedtls/ecp.h" +#include "mbedtls/md.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Roles in the EC J-PAKE exchange + */ +typedef enum { + MBEDTLS_ECJPAKE_CLIENT = 0, /**< Client */ + MBEDTLS_ECJPAKE_SERVER, /**< Server */ + MBEDTLS_ECJPAKE_NONE, /**< Undefined */ +} mbedtls_ecjpake_role; + +#if !defined(MBEDTLS_ECJPAKE_ALT) +/** + * EC J-PAKE context structure. + * + * J-PAKE is a symmetric protocol, except for the identifiers used in + * Zero-Knowledge Proofs, and the serialization of the second message + * (KeyExchange) as defined by the Thread spec. + * + * In order to benefit from this symmetry, we choose a different naming + * convention from the Thread v1.0 spec. Correspondence is indicated in the + * description as a pair C: client name, S: server name + */ +typedef struct mbedtls_ecjpake_context { + mbedtls_md_type_t MBEDTLS_PRIVATE(md_type); /**< Hash to use */ + mbedtls_ecp_group MBEDTLS_PRIVATE(grp); /**< Elliptic curve */ + mbedtls_ecjpake_role MBEDTLS_PRIVATE(role); /**< Are we client or server? */ + int MBEDTLS_PRIVATE(point_format); /**< Format for point export */ + + mbedtls_ecp_point MBEDTLS_PRIVATE(Xm1); /**< My public key 1 C: X1, S: X3 */ + mbedtls_ecp_point MBEDTLS_PRIVATE(Xm2); /**< My public key 2 C: X2, S: X4 */ + mbedtls_ecp_point MBEDTLS_PRIVATE(Xp1); /**< Peer public key 1 C: X3, S: X1 */ + mbedtls_ecp_point MBEDTLS_PRIVATE(Xp2); /**< Peer public key 2 C: X4, S: X2 */ + mbedtls_ecp_point MBEDTLS_PRIVATE(Xp); /**< Peer public key C: Xs, S: Xc */ + + mbedtls_mpi MBEDTLS_PRIVATE(xm1); /**< My private key 1 C: x1, S: x3 */ + mbedtls_mpi MBEDTLS_PRIVATE(xm2); /**< My private key 2 C: x2, S: x4 */ + + mbedtls_mpi MBEDTLS_PRIVATE(s); /**< Pre-shared secret (passphrase) */ +} mbedtls_ecjpake_context; + +#else /* MBEDTLS_ECJPAKE_ALT */ +#include "ecjpake_alt.h" +#endif /* MBEDTLS_ECJPAKE_ALT */ + +/** + * \brief Initialize an ECJPAKE context. + * + * \param ctx The ECJPAKE context to initialize. + * This must not be \c NULL. + */ +void mbedtls_ecjpake_init(mbedtls_ecjpake_context *ctx); + +/** + * \brief Set up an ECJPAKE context for use. + * + * \note Currently the only values for hash/curve allowed by the + * standard are #MBEDTLS_MD_SHA256/#MBEDTLS_ECP_DP_SECP256R1. + * + * \param ctx The ECJPAKE context to set up. This must be initialized. + * \param role The role of the caller. This must be either + * #MBEDTLS_ECJPAKE_CLIENT or #MBEDTLS_ECJPAKE_SERVER. + * \param hash The identifier of the hash function to use, + * for example #MBEDTLS_MD_SHA256. + * \param curve The identifier of the elliptic curve to use, + * for example #MBEDTLS_ECP_DP_SECP256R1. + * \param secret The pre-shared secret (passphrase). This must be + * a readable not empty buffer of length \p len Bytes. It need + * only be valid for the duration of this call. + * \param len The length of the pre-shared secret \p secret. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_ecjpake_setup(mbedtls_ecjpake_context *ctx, + mbedtls_ecjpake_role role, + mbedtls_md_type_t hash, + mbedtls_ecp_group_id curve, + const unsigned char *secret, + size_t len); + +/** + * \brief Set the point format for future reads and writes. + * + * \param ctx The ECJPAKE context to configure. + * \param point_format The point format to use: + * #MBEDTLS_ECP_PF_UNCOMPRESSED (default) + * or #MBEDTLS_ECP_PF_COMPRESSED. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if \p point_format + * is invalid. + */ +int mbedtls_ecjpake_set_point_format(mbedtls_ecjpake_context *ctx, + int point_format); + +/** + * \brief Check if an ECJPAKE context is ready for use. + * + * \param ctx The ECJPAKE context to check. This must be + * initialized. + * + * \return \c 0 if the context is ready for use. + * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA otherwise. + */ +int mbedtls_ecjpake_check(const mbedtls_ecjpake_context *ctx); + +/** + * \brief Generate and write the first round message + * (TLS: contents of the Client/ServerHello extension, + * excluding extension type and length bytes). + * + * \param ctx The ECJPAKE context to use. This must be + * initialized and set up. + * \param buf The buffer to write the contents to. This must be a + * writable buffer of length \p len Bytes. + * \param len The length of \p buf in Bytes. + * \param olen The address at which to store the total number + * of Bytes written to \p buf. This must not be \c NULL. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG parameter to be passed to \p f_rng. This + * may be \c NULL if \p f_rng doesn't use a context. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_ecjpake_write_round_one(mbedtls_ecjpake_context *ctx, + unsigned char *buf, size_t len, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief Read and process the first round message + * (TLS: contents of the Client/ServerHello extension, + * excluding extension type and length bytes). + * + * \param ctx The ECJPAKE context to use. This must be initialized + * and set up. + * \param buf The buffer holding the first round message. This must + * be a readable buffer of length \p len Bytes. + * \param len The length in Bytes of \p buf. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_ecjpake_read_round_one(mbedtls_ecjpake_context *ctx, + const unsigned char *buf, + size_t len); + +/** + * \brief Generate and write the second round message + * (TLS: contents of the Client/ServerKeyExchange). + * + * \param ctx The ECJPAKE context to use. This must be initialized, + * set up, and already have performed round one. + * \param buf The buffer to write the round two contents to. + * This must be a writable buffer of length \p len Bytes. + * \param len The size of \p buf in Bytes. + * \param olen The address at which to store the total number of Bytes + * written to \p buf. This must not be \c NULL. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG parameter to be passed to \p f_rng. This + * may be \c NULL if \p f_rng doesn't use a context. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_ecjpake_write_round_two(mbedtls_ecjpake_context *ctx, + unsigned char *buf, size_t len, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief Read and process the second round message + * (TLS: contents of the Client/ServerKeyExchange). + * + * \param ctx The ECJPAKE context to use. This must be initialized + * and set up and already have performed round one. + * \param buf The buffer holding the second round message. This must + * be a readable buffer of length \p len Bytes. + * \param len The length in Bytes of \p buf. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_ecjpake_read_round_two(mbedtls_ecjpake_context *ctx, + const unsigned char *buf, + size_t len); + +/** + * \brief Derive the shared secret + * (TLS: Pre-Master Secret). + * + * \param ctx The ECJPAKE context to use. This must be initialized, + * set up and have performed both round one and two. + * \param buf The buffer to write the derived secret to. This must + * be a writable buffer of length \p len Bytes. + * \param len The length of \p buf in Bytes. + * \param olen The address at which to store the total number of Bytes + * written to \p buf. This must not be \c NULL. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG parameter to be passed to \p f_rng. This + * may be \c NULL if \p f_rng doesn't use a context. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_ecjpake_derive_secret(mbedtls_ecjpake_context *ctx, + unsigned char *buf, size_t len, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief Write the shared key material to be passed to a Key + * Derivation Function as described in RFC8236. + * + * \param ctx The ECJPAKE context to use. This must be initialized, + * set up and have performed both round one and two. + * \param buf The buffer to write the derived secret to. This must + * be a writable buffer of length \p len Bytes. + * \param len The length of \p buf in Bytes. + * \param olen The address at which to store the total number of bytes + * written to \p buf. This must not be \c NULL. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG parameter to be passed to \p f_rng. This + * may be \c NULL if \p f_rng doesn't use a context. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_ecjpake_write_shared_key(mbedtls_ecjpake_context *ctx, + unsigned char *buf, size_t len, size_t *olen, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief This clears an ECJPAKE context and frees any + * embedded data structure. + * + * \param ctx The ECJPAKE context to free. This may be \c NULL, + * in which case this function does nothing. If it is not + * \c NULL, it must point to an initialized ECJPAKE context. + */ +void mbedtls_ecjpake_free(mbedtls_ecjpake_context *ctx); + +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if a test failed + */ +int mbedtls_ecjpake_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + + +#endif /* ecjpake.h */ diff --git a/include/mbedtls/ecp.h b/include/mbedtls/ecp.h new file mode 100644 index 0000000..7f5e880 --- /dev/null +++ b/include/mbedtls/ecp.h @@ -0,0 +1,1362 @@ +/** + * \file ecp.h + * + * \brief This file provides an API for Elliptic Curves over GF(P) (ECP). + * + * The use of ECP in cryptography and TLS is defined in + * <em>Standards for Efficient Cryptography Group (SECG): SEC1 + * Elliptic Curve Cryptography</em> and + * <em>RFC-4492: Elliptic Curve Cryptography (ECC) Cipher Suites + * for Transport Layer Security (TLS)</em>. + * + * <em>RFC-2409: The Internet Key Exchange (IKE)</em> defines ECP + * group types. + * + */ + +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_ECP_H +#define MBEDTLS_ECP_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/bignum.h" + +/* + * ECP error codes + */ +/** Bad input parameters to function. */ +#define MBEDTLS_ERR_ECP_BAD_INPUT_DATA -0x4F80 +/** The buffer is too small to write to. */ +#define MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL -0x4F00 +/** The requested feature is not available, for example, the requested curve is not supported. */ +#define MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE -0x4E80 +/** The signature is not valid. */ +#define MBEDTLS_ERR_ECP_VERIFY_FAILED -0x4E00 +/** Memory allocation failed. */ +#define MBEDTLS_ERR_ECP_ALLOC_FAILED -0x4D80 +/** Generation of random value, such as ephemeral key, failed. */ +#define MBEDTLS_ERR_ECP_RANDOM_FAILED -0x4D00 +/** Invalid private or public key. */ +#define MBEDTLS_ERR_ECP_INVALID_KEY -0x4C80 +/** The buffer contains a valid signature followed by more data. */ +#define MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH -0x4C00 +/** Operation in progress, call again with the same parameters to continue. */ +#define MBEDTLS_ERR_ECP_IN_PROGRESS -0x4B00 + +/* Flags indicating whether to include code that is specific to certain + * types of curves. These flags are for internal library use only. */ +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) || \ + defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) +#define MBEDTLS_ECP_SHORT_WEIERSTRASS_ENABLED +#endif +#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) || \ + defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) +#define MBEDTLS_ECP_MONTGOMERY_ENABLED +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Domain-parameter identifiers: curve, subgroup, and generator. + * + * \note Only curves over prime fields are supported. + * + * \warning This library does not support validation of arbitrary domain + * parameters. Therefore, only standardized domain parameters from trusted + * sources should be used. See mbedtls_ecp_group_load(). + */ +/* Note: when adding a new curve: + * - Add it at the end of this enum, otherwise you'll break the ABI by + * changing the numerical value for existing curves. + * - Increment MBEDTLS_ECP_DP_MAX below if needed. + * - Update the calculation of MBEDTLS_ECP_MAX_BITS below. + * - Add the corresponding MBEDTLS_ECP_DP_xxx_ENABLED macro definition to + * mbedtls_config.h. + * - List the curve as a dependency of MBEDTLS_ECP_C and + * MBEDTLS_ECDSA_C if supported in check_config.h. + * - Add the curve to the appropriate curve type macro + * MBEDTLS_ECP_yyy_ENABLED above. + * - Add the necessary definitions to ecp_curves.c. + * - Add the curve to the ecp_supported_curves array in ecp.c. + * - Add the curve to applicable profiles in x509_crt.c. + * - Add the curve to applicable presets in ssl_tls.c. + */ +typedef enum { + MBEDTLS_ECP_DP_NONE = 0, /*!< Curve not defined. */ + MBEDTLS_ECP_DP_SECP192R1, /*!< Domain parameters for the 192-bit curve defined by FIPS 186-4 and SEC1. */ + MBEDTLS_ECP_DP_SECP224R1, /*!< Domain parameters for the 224-bit curve defined by FIPS 186-4 and SEC1. */ + MBEDTLS_ECP_DP_SECP256R1, /*!< Domain parameters for the 256-bit curve defined by FIPS 186-4 and SEC1. */ + MBEDTLS_ECP_DP_SECP384R1, /*!< Domain parameters for the 384-bit curve defined by FIPS 186-4 and SEC1. */ + MBEDTLS_ECP_DP_SECP521R1, /*!< Domain parameters for the 521-bit curve defined by FIPS 186-4 and SEC1. */ + MBEDTLS_ECP_DP_BP256R1, /*!< Domain parameters for 256-bit Brainpool curve. */ + MBEDTLS_ECP_DP_BP384R1, /*!< Domain parameters for 384-bit Brainpool curve. */ + MBEDTLS_ECP_DP_BP512R1, /*!< Domain parameters for 512-bit Brainpool curve. */ + MBEDTLS_ECP_DP_CURVE25519, /*!< Domain parameters for Curve25519. */ + MBEDTLS_ECP_DP_SECP192K1, /*!< Domain parameters for 192-bit "Koblitz" curve. */ + MBEDTLS_ECP_DP_SECP224K1, /*!< Domain parameters for 224-bit "Koblitz" curve. */ + MBEDTLS_ECP_DP_SECP256K1, /*!< Domain parameters for 256-bit "Koblitz" curve. */ + MBEDTLS_ECP_DP_CURVE448, /*!< Domain parameters for Curve448. */ +} mbedtls_ecp_group_id; + +/** + * The number of supported curves, plus one for #MBEDTLS_ECP_DP_NONE. + */ +#define MBEDTLS_ECP_DP_MAX 14 + +/* + * Curve types + */ +typedef enum { + MBEDTLS_ECP_TYPE_NONE = 0, + MBEDTLS_ECP_TYPE_SHORT_WEIERSTRASS, /* y^2 = x^3 + a x + b */ + MBEDTLS_ECP_TYPE_MONTGOMERY, /* y^2 = x^3 + a x^2 + x */ +} mbedtls_ecp_curve_type; + +/** + * Curve information, for use by other modules. + * + * The fields of this structure are part of the public API and can be + * accessed directly by applications. Future versions of the library may + * add extra fields or reorder existing fields. + */ +typedef struct mbedtls_ecp_curve_info { + mbedtls_ecp_group_id grp_id; /*!< An internal identifier. */ + uint16_t tls_id; /*!< The TLS NamedCurve identifier. */ + uint16_t bit_size; /*!< The curve size in bits. */ + const char *name; /*!< A human-friendly name. */ +} mbedtls_ecp_curve_info; + +/** + * \brief The ECP point structure, in Jacobian coordinates. + * + * \note All functions expect and return points satisfying + * the following condition: <code>Z == 0</code> or + * <code>Z == 1</code>. Other values of \p Z are + * used only by internal functions. + * The point is zero, or "at infinity", if <code>Z == 0</code>. + * Otherwise, \p X and \p Y are its standard (affine) + * coordinates. + */ +typedef struct mbedtls_ecp_point { + mbedtls_mpi MBEDTLS_PRIVATE(X); /*!< The X coordinate of the ECP point. */ + mbedtls_mpi MBEDTLS_PRIVATE(Y); /*!< The Y coordinate of the ECP point. */ + mbedtls_mpi MBEDTLS_PRIVATE(Z); /*!< The Z coordinate of the ECP point. */ +} +mbedtls_ecp_point; + +#if !defined(MBEDTLS_ECP_ALT) +/* + * default Mbed TLS elliptic curve arithmetic implementation + * + * (in case MBEDTLS_ECP_ALT is defined then the developer has to provide an + * alternative implementation for the whole module and it will replace this + * one.) + */ + +/** + * \brief The ECP group structure. + * + * We consider two types of curve equations: + * <ul><li>Short Weierstrass: <code>y^2 = x^3 + A x + B mod P</code> + * (SEC1 + RFC-4492)</li> + * <li>Montgomery: <code>y^2 = x^3 + A x^2 + x mod P</code> (Curve25519, + * Curve448)</li></ul> + * In both cases, the generator (\p G) for a prime-order subgroup is fixed. + * + * For Short Weierstrass, this subgroup is the whole curve, and its + * cardinality is denoted by \p N. Our code requires that \p N is an + * odd prime as mbedtls_ecp_mul() requires an odd number, and + * mbedtls_ecdsa_sign() requires that it is prime for blinding purposes. + * + * The default implementation only initializes \p A without setting it to the + * authentic value for curves with <code>A = -3</code>(SECP256R1, etc), in which + * case you need to load \p A by yourself when using domain parameters directly, + * for example: + * \code + * mbedtls_mpi_init(&A); + * mbedtls_ecp_group_init(&grp); + * CHECK_RETURN(mbedtls_ecp_group_load(&grp, grp_id)); + * if (mbedtls_ecp_group_a_is_minus_3(&grp)) { + * CHECK_RETURN(mbedtls_mpi_sub_int(&A, &grp.P, 3)); + * } else { + * CHECK_RETURN(mbedtls_mpi_copy(&A, &grp.A)); + * } + * + * do_something_with_a(&A); + * + * cleanup: + * mbedtls_mpi_free(&A); + * mbedtls_ecp_group_free(&grp); + * \endcode + * + * For Montgomery curves, we do not store \p A, but <code>(A + 2) / 4</code>, + * which is the quantity used in the formulas. Additionally, \p nbits is + * not the size of \p N but the required size for private keys. + * + * If \p modp is NULL, reduction modulo \p P is done using a generic algorithm. + * Otherwise, \p modp must point to a function that takes an \p mbedtls_mpi in the + * range of <code>0..2^(2*pbits)-1</code>, and transforms it in-place to an integer + * which is congruent mod \p P to the given MPI, and is close enough to \p pbits + * in size, so that it may be efficiently brought in the 0..P-1 range by a few + * additions or subtractions. Therefore, it is only an approximative modular + * reduction. It must return 0 on success and non-zero on failure. + * + * \note Alternative implementations of the ECP module must obey the + * following constraints. + * * Group IDs must be distinct: if two group structures have + * the same ID, then they must be identical. + * * The fields \c id, \c P, \c A, \c B, \c G, \c N, + * \c pbits and \c nbits must have the same type and semantics + * as in the built-in implementation. + * They must be available for reading, but direct modification + * of these fields does not need to be supported. + * They do not need to be at the same offset in the structure. + */ +typedef struct mbedtls_ecp_group { + mbedtls_ecp_group_id id; /*!< An internal group identifier. */ + mbedtls_mpi P; /*!< The prime modulus of the base field. */ + mbedtls_mpi A; /*!< For Short Weierstrass: \p A in the equation. Note that + \p A is not set to the authentic value in some cases. + Refer to detailed description of ::mbedtls_ecp_group if + using domain parameters in the structure. + For Montgomery curves: <code>(A + 2) / 4</code>. */ + mbedtls_mpi B; /*!< For Short Weierstrass: \p B in the equation. + For Montgomery curves: unused. */ + mbedtls_ecp_point G; /*!< The generator of the subgroup used. */ + mbedtls_mpi N; /*!< The order of \p G. */ + size_t pbits; /*!< The number of bits in \p P.*/ + size_t nbits; /*!< For Short Weierstrass: The number of bits in \p P. + For Montgomery curves: the number of bits in the + private keys. */ + /* End of public fields */ + + unsigned int MBEDTLS_PRIVATE(h); /*!< \internal 1 if the constants are static. */ + int(*MBEDTLS_PRIVATE(modp))(mbedtls_mpi *); /*!< The function for fast pseudo-reduction + mod \p P (see above).*/ + int(*MBEDTLS_PRIVATE(t_pre))(mbedtls_ecp_point *, void *); /*!< Unused. */ + int(*MBEDTLS_PRIVATE(t_post))(mbedtls_ecp_point *, void *); /*!< Unused. */ + void *MBEDTLS_PRIVATE(t_data); /*!< Unused. */ + mbedtls_ecp_point *MBEDTLS_PRIVATE(T); /*!< Pre-computed points for ecp_mul_comb(). */ + size_t MBEDTLS_PRIVATE(T_size); /*!< The number of dynamic allocated pre-computed points. */ +} +mbedtls_ecp_group; + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in mbedtls_config.h, or define them using the compiler command line. + * \{ + */ + +#if !defined(MBEDTLS_ECP_WINDOW_SIZE) +/* + * Maximum "window" size used for point multiplication. + * Default: a point where higher memory usage yields diminishing performance + * returns. + * Minimum value: 2. Maximum value: 7. + * + * Result is an array of at most ( 1 << ( MBEDTLS_ECP_WINDOW_SIZE - 1 ) ) + * points used for point multiplication. This value is directly tied to EC + * peak memory usage, so decreasing it by one should roughly cut memory usage + * by two (if large curves are in use). + * + * Reduction in size may reduce speed, but larger curves are impacted first. + * Sample performances (in ECDHE handshakes/s, with FIXED_POINT_OPTIM = 1): + * w-size: 6 5 4 3 2 + * 521 145 141 135 120 97 + * 384 214 209 198 177 146 + * 256 320 320 303 262 226 + * 224 475 475 453 398 342 + * 192 640 640 633 587 476 + */ +#define MBEDTLS_ECP_WINDOW_SIZE 4 /**< The maximum window size used. */ +#endif /* MBEDTLS_ECP_WINDOW_SIZE */ + +#if !defined(MBEDTLS_ECP_FIXED_POINT_OPTIM) +/* + * Trade code size for speed on fixed-point multiplication. + * + * This speeds up repeated multiplication of the generator (that is, the + * multiplication in ECDSA signatures, and half of the multiplications in + * ECDSA verification and ECDHE) by a factor roughly 3 to 4. + * + * For each n-bit Short Weierstrass curve that is enabled, this adds 4n bytes + * of code size if n < 384 and 8n otherwise. + * + * Change this value to 0 to reduce code size. + */ +#define MBEDTLS_ECP_FIXED_POINT_OPTIM 1 /**< Enable fixed-point speed-up. */ +#endif /* MBEDTLS_ECP_FIXED_POINT_OPTIM */ + +/** \} name SECTION: Module settings */ + +#else /* MBEDTLS_ECP_ALT */ +#include "ecp_alt.h" +#endif /* MBEDTLS_ECP_ALT */ + +/** + * The maximum size of the groups, that is, of \c N and \c P. + */ +#if !defined(MBEDTLS_ECP_LIGHT) +/* Dummy definition to help code that has optional ECP support and + * defines an MBEDTLS_ECP_MAX_BYTES-sized array unconditionally. */ +#define MBEDTLS_ECP_MAX_BITS 1 +/* Note: the curves must be listed in DECREASING size! */ +#elif defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) +#define MBEDTLS_ECP_MAX_BITS 521 +#elif defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) +#define MBEDTLS_ECP_MAX_BITS 512 +#elif defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) +#define MBEDTLS_ECP_MAX_BITS 448 +#elif defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) +#define MBEDTLS_ECP_MAX_BITS 384 +#elif defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) +#define MBEDTLS_ECP_MAX_BITS 384 +#elif defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) +#define MBEDTLS_ECP_MAX_BITS 256 +#elif defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) +#define MBEDTLS_ECP_MAX_BITS 256 +#elif defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) +#define MBEDTLS_ECP_MAX_BITS 256 +#elif defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) +#define MBEDTLS_ECP_MAX_BITS 255 +#elif defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) +#define MBEDTLS_ECP_MAX_BITS 225 // n is slightly above 2^224 +#elif defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) +#define MBEDTLS_ECP_MAX_BITS 224 +#elif defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) +#define MBEDTLS_ECP_MAX_BITS 192 +#elif defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) +#define MBEDTLS_ECP_MAX_BITS 192 +#else /* !MBEDTLS_ECP_LIGHT */ +#error "Missing definition of MBEDTLS_ECP_MAX_BITS" +#endif /* !MBEDTLS_ECP_LIGHT */ + +#define MBEDTLS_ECP_MAX_BYTES ((MBEDTLS_ECP_MAX_BITS + 7) / 8) +#define MBEDTLS_ECP_MAX_PT_LEN (2 * MBEDTLS_ECP_MAX_BYTES + 1) + +#if defined(MBEDTLS_ECP_RESTARTABLE) + +/** + * \brief Internal restart context for multiplication + * + * \note Opaque struct + */ +typedef struct mbedtls_ecp_restart_mul mbedtls_ecp_restart_mul_ctx; + +/** + * \brief Internal restart context for ecp_muladd() + * + * \note Opaque struct + */ +typedef struct mbedtls_ecp_restart_muladd mbedtls_ecp_restart_muladd_ctx; + +/** + * \brief General context for resuming ECC operations + */ +typedef struct { + unsigned MBEDTLS_PRIVATE(ops_done); /*!< current ops count */ + unsigned MBEDTLS_PRIVATE(depth); /*!< call depth (0 = top-level) */ + mbedtls_ecp_restart_mul_ctx *MBEDTLS_PRIVATE(rsm); /*!< ecp_mul_comb() sub-context */ + mbedtls_ecp_restart_muladd_ctx *MBEDTLS_PRIVATE(ma); /*!< ecp_muladd() sub-context */ +} mbedtls_ecp_restart_ctx; + +/* + * Operation counts for restartable functions + */ +#define MBEDTLS_ECP_OPS_CHK 3 /*!< basic ops count for ecp_check_pubkey() */ +#define MBEDTLS_ECP_OPS_DBL 8 /*!< basic ops count for ecp_double_jac() */ +#define MBEDTLS_ECP_OPS_ADD 11 /*!< basic ops count for see ecp_add_mixed() */ +#define MBEDTLS_ECP_OPS_INV 120 /*!< empirical equivalent for mpi_mod_inv() */ + +/** + * \brief Internal; for restartable functions in other modules. + * Check and update basic ops budget. + * + * \param grp Group structure + * \param rs_ctx Restart context + * \param ops Number of basic ops to do + * + * \return \c 0 if doing \p ops basic ops is still allowed, + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS otherwise. + */ +int mbedtls_ecp_check_budget(const mbedtls_ecp_group *grp, + mbedtls_ecp_restart_ctx *rs_ctx, + unsigned ops); + +/* Utility macro for checking and updating ops budget */ +#define MBEDTLS_ECP_BUDGET(ops) \ + MBEDTLS_MPI_CHK(mbedtls_ecp_check_budget(grp, rs_ctx, \ + (unsigned) (ops))); + +#else /* MBEDTLS_ECP_RESTARTABLE */ + +#define MBEDTLS_ECP_BUDGET(ops) /* no-op; for compatibility */ + +/* We want to declare restartable versions of existing functions anyway */ +typedef void mbedtls_ecp_restart_ctx; + +#endif /* MBEDTLS_ECP_RESTARTABLE */ + +/** + * \brief The ECP key-pair structure. + * + * A generic key-pair that may be used for ECDSA and fixed ECDH, for example. + * + * \note Members are deliberately in the same order as in the + * ::mbedtls_ecdsa_context structure. + */ +typedef struct mbedtls_ecp_keypair { + mbedtls_ecp_group MBEDTLS_PRIVATE(grp); /*!< Elliptic curve and base point */ + mbedtls_mpi MBEDTLS_PRIVATE(d); /*!< our secret value */ + mbedtls_ecp_point MBEDTLS_PRIVATE(Q); /*!< our public value */ +} +mbedtls_ecp_keypair; + +/** + * The uncompressed point format for Short Weierstrass curves + * (MBEDTLS_ECP_DP_SECP_XXX and MBEDTLS_ECP_DP_BP_XXX). + */ +#define MBEDTLS_ECP_PF_UNCOMPRESSED 0 +/** + * The compressed point format for Short Weierstrass curves + * (MBEDTLS_ECP_DP_SECP_XXX and MBEDTLS_ECP_DP_BP_XXX). + * + * \warning While this format is supported for all concerned curves for + * writing, when it comes to parsing, it is not supported for all + * curves. Specifically, parsing compressed points on + * MBEDTLS_ECP_DP_SECP224R1 and MBEDTLS_ECP_DP_SECP224K1 is not + * supported. + */ +#define MBEDTLS_ECP_PF_COMPRESSED 1 + +/* + * Some other constants from RFC 4492 + */ +#define MBEDTLS_ECP_TLS_NAMED_CURVE 3 /**< The named_curve of ECCurveType. */ + +#if defined(MBEDTLS_ECP_RESTARTABLE) +/** + * \brief Set the maximum number of basic operations done in a row. + * + * If more operations are needed to complete a computation, + * #MBEDTLS_ERR_ECP_IN_PROGRESS will be returned by the + * function performing the computation. It is then the + * caller's responsibility to either call again with the same + * parameters until it returns 0 or an error code; or to free + * the restart context if the operation is to be aborted. + * + * It is strictly required that all input parameters and the + * restart context be the same on successive calls for the + * same operation, but output parameters need not be the + * same; they must not be used until the function finally + * returns 0. + * + * This only applies to functions whose documentation + * mentions they may return #MBEDTLS_ERR_ECP_IN_PROGRESS (or + * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS for functions in the + * SSL module). For functions that accept a "restart context" + * argument, passing NULL disables restart and makes the + * function equivalent to the function with the same name + * with \c _restartable removed. For functions in the ECDH + * module, restart is disabled unless the function accepts + * an "ECDH context" argument and + * mbedtls_ecdh_enable_restart() was previously called on + * that context. For function in the SSL module, restart is + * only enabled for specific sides and key exchanges + * (currently only for clients and ECDHE-ECDSA). + * + * \warning Using the PSA interruptible interfaces with keys in local + * storage and no accelerator driver will also call this + * function to set the values specified via those interfaces, + * overwriting values previously set. Care should be taken if + * mixing these two interfaces. + * + * \param max_ops Maximum number of basic operations done in a row. + * Default: 0 (unlimited). + * Lower (non-zero) values mean ECC functions will block for + * a lesser maximum amount of time. + * + * \note A "basic operation" is defined as a rough equivalent of a + * multiplication in GF(p) for the NIST P-256 curve. + * As an indication, with default settings, a scalar + * multiplication (full run of \c mbedtls_ecp_mul()) is: + * - about 3300 basic operations for P-256 + * - about 9400 basic operations for P-384 + * + * \note Very low values are not always respected: sometimes + * functions need to block for a minimum number of + * operations, and will do so even if max_ops is set to a + * lower value. That minimum depends on the curve size, and + * can be made lower by decreasing the value of + * \c MBEDTLS_ECP_WINDOW_SIZE. As an indication, here is the + * lowest effective value for various curves and values of + * that parameter (w for short): + * w=6 w=5 w=4 w=3 w=2 + * P-256 208 208 160 136 124 + * P-384 682 416 320 272 248 + * P-521 1364 832 640 544 496 + * + * \note This setting is currently ignored by Curve25519. + */ +void mbedtls_ecp_set_max_ops(unsigned max_ops); + +/** + * \brief Check if restart is enabled (max_ops != 0) + * + * \return \c 0 if \c max_ops == 0 (restart disabled) + * \return \c 1 otherwise (restart enabled) + */ +int mbedtls_ecp_restart_is_enabled(void); +#endif /* MBEDTLS_ECP_RESTARTABLE */ + +/* + * Get the type of a curve + */ +mbedtls_ecp_curve_type mbedtls_ecp_get_type(const mbedtls_ecp_group *grp); + +/** + * \brief This function retrieves the information defined in + * mbedtls_ecp_curve_info() for all supported curves. + * + * \note This function returns information about all curves + * supported by the library. Some curves may not be + * supported for all algorithms. Call mbedtls_ecdh_can_do() + * or mbedtls_ecdsa_can_do() to check if a curve is + * supported for ECDH or ECDSA. + * + * \return A statically allocated array. The last entry is 0. + */ +const mbedtls_ecp_curve_info *mbedtls_ecp_curve_list(void); + +/** + * \brief This function retrieves the list of internal group + * identifiers of all supported curves in the order of + * preference. + * + * \note This function returns information about all curves + * supported by the library. Some curves may not be + * supported for all algorithms. Call mbedtls_ecdh_can_do() + * or mbedtls_ecdsa_can_do() to check if a curve is + * supported for ECDH or ECDSA. + * + * \return A statically allocated array, + * terminated with MBEDTLS_ECP_DP_NONE. + */ +const mbedtls_ecp_group_id *mbedtls_ecp_grp_id_list(void); + +/** + * \brief This function retrieves curve information from an internal + * group identifier. + * + * \param grp_id An \c MBEDTLS_ECP_DP_XXX value. + * + * \return The associated curve information on success. + * \return NULL on failure. + */ +const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_grp_id(mbedtls_ecp_group_id grp_id); + +/** + * \brief This function retrieves curve information from a TLS + * NamedCurve value. + * + * \param tls_id An \c MBEDTLS_ECP_DP_XXX value. + * + * \return The associated curve information on success. + * \return NULL on failure. + */ +const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_tls_id(uint16_t tls_id); + +/** + * \brief This function retrieves curve information from a + * human-readable name. + * + * \param name The human-readable name. + * + * \return The associated curve information on success. + * \return NULL on failure. + */ +const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_name(const char *name); + +/** + * \brief This function initializes a point as zero. + * + * \param pt The point to initialize. + */ +void mbedtls_ecp_point_init(mbedtls_ecp_point *pt); + +/** + * \brief This function initializes an ECP group context + * without loading any domain parameters. + * + * \note After this function is called, domain parameters + * for various ECP groups can be loaded through the + * mbedtls_ecp_group_load() or mbedtls_ecp_tls_read_group() + * functions. + */ +void mbedtls_ecp_group_init(mbedtls_ecp_group *grp); + +/** + * \brief This function initializes a key pair as an invalid one. + * + * \param key The key pair to initialize. + */ +void mbedtls_ecp_keypair_init(mbedtls_ecp_keypair *key); + +/** + * \brief This function frees the components of a point. + * + * \param pt The point to free. + */ +void mbedtls_ecp_point_free(mbedtls_ecp_point *pt); + +/** + * \brief This function frees the components of an ECP group. + * + * \param grp The group to free. This may be \c NULL, in which + * case this function returns immediately. If it is not + * \c NULL, it must point to an initialized ECP group. + */ +void mbedtls_ecp_group_free(mbedtls_ecp_group *grp); + +/** + * \brief This function frees the components of a key pair. + * + * \param key The key pair to free. This may be \c NULL, in which + * case this function returns immediately. If it is not + * \c NULL, it must point to an initialized ECP key pair. + */ +void mbedtls_ecp_keypair_free(mbedtls_ecp_keypair *key); + +#if defined(MBEDTLS_ECP_RESTARTABLE) +/** + * \brief Initialize a restart context. + * + * \param ctx The restart context to initialize. This must + * not be \c NULL. + */ +void mbedtls_ecp_restart_init(mbedtls_ecp_restart_ctx *ctx); + +/** + * \brief Free the components of a restart context. + * + * \param ctx The restart context to free. This may be \c NULL, in which + * case this function returns immediately. If it is not + * \c NULL, it must point to an initialized restart context. + */ +void mbedtls_ecp_restart_free(mbedtls_ecp_restart_ctx *ctx); +#endif /* MBEDTLS_ECP_RESTARTABLE */ + +/** + * \brief This function copies the contents of point \p Q into + * point \p P. + * + * \param P The destination point. This must be initialized. + * \param Q The source point. This must be initialized. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED on memory-allocation failure. + * \return Another negative error code for other kinds of failure. + */ +int mbedtls_ecp_copy(mbedtls_ecp_point *P, const mbedtls_ecp_point *Q); + +/** + * \brief This function copies the contents of group \p src into + * group \p dst. + * + * \param dst The destination group. This must be initialized. + * \param src The source group. This must be initialized. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED on memory-allocation failure. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_group_copy(mbedtls_ecp_group *dst, + const mbedtls_ecp_group *src); + +/** + * \brief This function sets a point to the point at infinity. + * + * \param pt The point to set. This must be initialized. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED on memory-allocation failure. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_set_zero(mbedtls_ecp_point *pt); + +/** + * \brief This function checks if a point is the point at infinity. + * + * \param pt The point to test. This must be initialized. + * + * \return \c 1 if the point is zero. + * \return \c 0 if the point is non-zero. + * \return A negative error code on failure. + */ +int mbedtls_ecp_is_zero(mbedtls_ecp_point *pt); + +/** + * \brief This function compares two points. + * + * \note This assumes that the points are normalized. Otherwise, + * they may compare as "not equal" even if they are. + * + * \param P The first point to compare. This must be initialized. + * \param Q The second point to compare. This must be initialized. + * + * \return \c 0 if the points are equal. + * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if the points are not equal. + */ +int mbedtls_ecp_point_cmp(const mbedtls_ecp_point *P, + const mbedtls_ecp_point *Q); + +/** + * \brief This function imports a non-zero point from two ASCII + * strings. + * + * \param P The destination point. This must be initialized. + * \param radix The numeric base of the input. + * \param x The first affine coordinate, as a null-terminated string. + * \param y The second affine coordinate, as a null-terminated string. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_MPI_XXX error code on failure. + */ +int mbedtls_ecp_point_read_string(mbedtls_ecp_point *P, int radix, + const char *x, const char *y); + +/** + * \brief This function exports a point into unsigned binary data. + * + * \param grp The group to which the point should belong. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param P The point to export. This must be initialized. + * \param format The point format. This must be either + * #MBEDTLS_ECP_PF_COMPRESSED or #MBEDTLS_ECP_PF_UNCOMPRESSED. + * (For groups without these formats, this parameter is + * ignored. But it still has to be either of the above + * values.) + * \param olen The address at which to store the length of + * the output in Bytes. This must not be \c NULL. + * \param buf The output buffer. This must be a writable buffer + * of length \p buflen Bytes. + * \param buflen The length of the output buffer \p buf in Bytes. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL if the output buffer + * is too small to hold the point. + * \return #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if the point format + * or the export for the given group is not implemented. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_point_write_binary(const mbedtls_ecp_group *grp, + const mbedtls_ecp_point *P, + int format, size_t *olen, + unsigned char *buf, size_t buflen); + +/** + * \brief This function imports a point from unsigned binary data. + * + * \note This function does not check that the point actually + * belongs to the given group, see mbedtls_ecp_check_pubkey() + * for that. + * + * \note For compressed points, see #MBEDTLS_ECP_PF_COMPRESSED for + * limitations. + * + * \param grp The group to which the point should belong. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param P The destination context to import the point to. + * This must be initialized. + * \param buf The input buffer. This must be a readable buffer + * of length \p ilen Bytes. + * \param ilen The length of the input buffer \p buf in Bytes. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if the input is invalid. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED on memory-allocation failure. + * \return #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if the import for the + * given group is not implemented. + */ +int mbedtls_ecp_point_read_binary(const mbedtls_ecp_group *grp, + mbedtls_ecp_point *P, + const unsigned char *buf, size_t ilen); + +/** + * \brief This function imports a point from a TLS ECPoint record. + * + * \note On function return, \p *buf is updated to point immediately + * after the ECPoint record. + * + * \param grp The ECP group to use. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param pt The destination point. + * \param buf The address of the pointer to the start of the input buffer. + * \param len The length of the buffer. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_MPI_XXX error code on initialization + * failure. + * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if input is invalid. + */ +int mbedtls_ecp_tls_read_point(const mbedtls_ecp_group *grp, + mbedtls_ecp_point *pt, + const unsigned char **buf, size_t len); + +/** + * \brief This function exports a point as a TLS ECPoint record + * defined in RFC 4492, Section 5.4. + * + * \param grp The ECP group to use. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param pt The point to be exported. This must be initialized. + * \param format The point format to use. This must be either + * #MBEDTLS_ECP_PF_COMPRESSED or #MBEDTLS_ECP_PF_UNCOMPRESSED. + * \param olen The address at which to store the length in Bytes + * of the data written. + * \param buf The target buffer. This must be a writable buffer of + * length \p blen Bytes. + * \param blen The length of the target buffer \p buf in Bytes. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if the input is invalid. + * \return #MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL if the target buffer + * is too small to hold the exported point. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_tls_write_point(const mbedtls_ecp_group *grp, + const mbedtls_ecp_point *pt, + int format, size_t *olen, + unsigned char *buf, size_t blen); + +/** + * \brief This function sets up an ECP group context + * from a standardized set of domain parameters. + * + * \note The index should be a value of the NamedCurve enum, + * as defined in <em>RFC-4492: Elliptic Curve Cryptography + * (ECC) Cipher Suites for Transport Layer Security (TLS)</em>, + * usually in the form of an \c MBEDTLS_ECP_DP_XXX macro. + * + * \param grp The group context to setup. This must be initialized. + * \param id The identifier of the domain parameter set to load. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if \p id doesn't + * correspond to a known group. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_group_load(mbedtls_ecp_group *grp, mbedtls_ecp_group_id id); + +/** + * \brief This function sets up an ECP group context from a TLS + * ECParameters record as defined in RFC 4492, Section 5.4. + * + * \note The read pointer \p buf is updated to point right after + * the ECParameters record on exit. + * + * \param grp The group context to setup. This must be initialized. + * \param buf The address of the pointer to the start of the input buffer. + * \param len The length of the input buffer \c *buf in Bytes. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if input is invalid. + * \return #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if the group is not + * recognized. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_tls_read_group(mbedtls_ecp_group *grp, + const unsigned char **buf, size_t len); + +/** + * \brief This function extracts an elliptic curve group ID from a + * TLS ECParameters record as defined in RFC 4492, Section 5.4. + * + * \note The read pointer \p buf is updated to point right after + * the ECParameters record on exit. + * + * \param grp The address at which to store the group id. + * This must not be \c NULL. + * \param buf The address of the pointer to the start of the input buffer. + * \param len The length of the input buffer \c *buf in Bytes. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if input is invalid. + * \return #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if the group is not + * recognized. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_tls_read_group_id(mbedtls_ecp_group_id *grp, + const unsigned char **buf, + size_t len); +/** + * \brief This function exports an elliptic curve as a TLS + * ECParameters record as defined in RFC 4492, Section 5.4. + * + * \param grp The ECP group to be exported. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param olen The address at which to store the number of Bytes written. + * This must not be \c NULL. + * \param buf The buffer to write to. This must be a writable buffer + * of length \p blen Bytes. + * \param blen The length of the output buffer \p buf in Bytes. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL if the output + * buffer is too small to hold the exported group. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_tls_write_group(const mbedtls_ecp_group *grp, + size_t *olen, + unsigned char *buf, size_t blen); + +/** + * \brief This function performs a scalar multiplication of a point + * by an integer: \p R = \p m * \p P. + * + * It is not thread-safe to use same group in multiple threads. + * + * \note To prevent timing attacks, this function + * executes the exact same sequence of base-field + * operations for any valid \p m. It avoids any if-branch or + * array index depending on the value of \p m. It also uses + * \p f_rng to randomize some intermediate results. + * + * \param grp The ECP group to use. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param R The point in which to store the result of the calculation. + * This must be initialized. + * \param m The integer by which to multiply. This must be initialized. + * \param P The point to multiply. This must be initialized. + * \param f_rng The RNG function. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be \c + * NULL if \p f_rng doesn't need a context. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_INVALID_KEY if \p m is not a valid private + * key, or \p P is not a valid public key. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED on memory-allocation failure. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_mul(mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_mpi *m, const mbedtls_ecp_point *P, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng); + +/** + * \brief This function performs multiplication of a point by + * an integer: \p R = \p m * \p P in a restartable way. + * + * \see mbedtls_ecp_mul() + * + * \note This function does the same as \c mbedtls_ecp_mul(), but + * it can return early and restart according to the limit set + * with \c mbedtls_ecp_set_max_ops() to reduce blocking. + * + * \param grp The ECP group to use. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param R The point in which to store the result of the calculation. + * This must be initialized. + * \param m The integer by which to multiply. This must be initialized. + * \param P The point to multiply. This must be initialized. + * \param f_rng The RNG function. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be \c + * NULL if \p f_rng doesn't need a context. + * \param rs_ctx The restart context (NULL disables restart). + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_INVALID_KEY if \p m is not a valid private + * key, or \p P is not a valid public key. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED on memory-allocation failure. + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of + * operations was reached: see \c mbedtls_ecp_set_max_ops(). + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_mul_restartable(mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_mpi *m, const mbedtls_ecp_point *P, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng, + mbedtls_ecp_restart_ctx *rs_ctx); + +#if defined(MBEDTLS_ECP_SHORT_WEIERSTRASS_ENABLED) +/** + * \brief This function checks if domain parameter A of the curve is + * \c -3. + * + * \note This function is only defined for short Weierstrass curves. + * It may not be included in builds without any short + * Weierstrass curve. + * + * \param grp The ECP group to use. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * + * \return \c 1 if <code>A = -3</code>. + * \return \c 0 Otherwise. + */ +static inline int mbedtls_ecp_group_a_is_minus_3(const mbedtls_ecp_group *grp) +{ + return grp->A.MBEDTLS_PRIVATE(p) == NULL; +} + +/** + * \brief This function performs multiplication and addition of two + * points by integers: \p R = \p m * \p P + \p n * \p Q + * + * It is not thread-safe to use same group in multiple threads. + * + * \note In contrast to mbedtls_ecp_mul(), this function does not + * guarantee a constant execution flow and timing. + * + * \note This function is only defined for short Weierstrass curves. + * It may not be included in builds without any short + * Weierstrass curve. + * + * \param grp The ECP group to use. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param R The point in which to store the result of the calculation. + * This must be initialized. + * \param m The integer by which to multiply \p P. + * This must be initialized. + * \param P The point to multiply by \p m. This must be initialized. + * \param n The integer by which to multiply \p Q. + * This must be initialized. + * \param Q The point to be multiplied by \p n. + * This must be initialized. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_INVALID_KEY if \p m or \p n are not + * valid private keys, or \p P or \p Q are not valid public + * keys. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED on memory-allocation failure. + * \return #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if \p grp does not + * designate a short Weierstrass curve. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_muladd(mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_mpi *m, const mbedtls_ecp_point *P, + const mbedtls_mpi *n, const mbedtls_ecp_point *Q); + +/** + * \brief This function performs multiplication and addition of two + * points by integers: \p R = \p m * \p P + \p n * \p Q in a + * restartable way. + * + * \see \c mbedtls_ecp_muladd() + * + * \note This function works the same as \c mbedtls_ecp_muladd(), + * but it can return early and restart according to the limit + * set with \c mbedtls_ecp_set_max_ops() to reduce blocking. + * + * \note This function is only defined for short Weierstrass curves. + * It may not be included in builds without any short + * Weierstrass curve. + * + * \param grp The ECP group to use. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param R The point in which to store the result of the calculation. + * This must be initialized. + * \param m The integer by which to multiply \p P. + * This must be initialized. + * \param P The point to multiply by \p m. This must be initialized. + * \param n The integer by which to multiply \p Q. + * This must be initialized. + * \param Q The point to be multiplied by \p n. + * This must be initialized. + * \param rs_ctx The restart context (NULL disables restart). + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_INVALID_KEY if \p m or \p n are not + * valid private keys, or \p P or \p Q are not valid public + * keys. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED on memory-allocation failure. + * \return #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if \p grp does not + * designate a short Weierstrass curve. + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of + * operations was reached: see \c mbedtls_ecp_set_max_ops(). + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_muladd_restartable( + mbedtls_ecp_group *grp, mbedtls_ecp_point *R, + const mbedtls_mpi *m, const mbedtls_ecp_point *P, + const mbedtls_mpi *n, const mbedtls_ecp_point *Q, + mbedtls_ecp_restart_ctx *rs_ctx); +#endif /* MBEDTLS_ECP_SHORT_WEIERSTRASS_ENABLED */ + +/** + * \brief This function checks that a point is a valid public key + * on this curve. + * + * It only checks that the point is non-zero, has + * valid coordinates and lies on the curve. It does not verify + * that it is indeed a multiple of \c G. This additional + * check is computationally more expensive, is not required + * by standards, and should not be necessary if the group + * used has a small cofactor. In particular, it is useless for + * the NIST groups which all have a cofactor of 1. + * + * \note This function uses bare components rather than an + * ::mbedtls_ecp_keypair structure, to ease use with other + * structures, such as ::mbedtls_ecdh_context or + * ::mbedtls_ecdsa_context. + * + * \param grp The ECP group the point should belong to. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param pt The point to check. This must be initialized. + * + * \return \c 0 if the point is a valid public key. + * \return #MBEDTLS_ERR_ECP_INVALID_KEY if the point is not + * a valid public key for the given curve. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_check_pubkey(const mbedtls_ecp_group *grp, + const mbedtls_ecp_point *pt); + +/** + * \brief This function checks that an \c mbedtls_mpi is a + * valid private key for this curve. + * + * \note This function uses bare components rather than an + * ::mbedtls_ecp_keypair structure to ease use with other + * structures, such as ::mbedtls_ecdh_context or + * ::mbedtls_ecdsa_context. + * + * \param grp The ECP group the private key should belong to. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param d The integer to check. This must be initialized. + * + * \return \c 0 if the point is a valid private key. + * \return #MBEDTLS_ERR_ECP_INVALID_KEY if the point is not a valid + * private key for the given curve. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_check_privkey(const mbedtls_ecp_group *grp, + const mbedtls_mpi *d); + +/** + * \brief This function generates a private key. + * + * \param grp The ECP group to generate a private key for. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param d The destination MPI (secret part). This must be initialized. + * \param f_rng The RNG function. This must not be \c NULL. + * \param p_rng The RNG parameter to be passed to \p f_rng. This may be + * \c NULL if \p f_rng doesn't need a context argument. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_MPI_XXX error code + * on failure. + */ +int mbedtls_ecp_gen_privkey(const mbedtls_ecp_group *grp, + mbedtls_mpi *d, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief This function generates a keypair with a configurable base + * point. + * + * \note This function uses bare components rather than an + * ::mbedtls_ecp_keypair structure to ease use with other + * structures, such as ::mbedtls_ecdh_context or + * ::mbedtls_ecdsa_context. + * + * \param grp The ECP group to generate a key pair for. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param G The base point to use. This must be initialized + * and belong to \p grp. It replaces the default base + * point \c grp->G used by mbedtls_ecp_gen_keypair(). + * \param d The destination MPI (secret part). + * This must be initialized. + * \param Q The destination point (public part). + * This must be initialized. + * \param f_rng The RNG function. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may + * be \c NULL if \p f_rng doesn't need a context argument. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_MPI_XXX error code + * on failure. + */ +int mbedtls_ecp_gen_keypair_base(mbedtls_ecp_group *grp, + const mbedtls_ecp_point *G, + mbedtls_mpi *d, mbedtls_ecp_point *Q, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief This function generates an ECP keypair. + * + * \note This function uses bare components rather than an + * ::mbedtls_ecp_keypair structure to ease use with other + * structures, such as ::mbedtls_ecdh_context or + * ::mbedtls_ecdsa_context. + * + * \param grp The ECP group to generate a key pair for. + * This must be initialized and have group parameters + * set, for example through mbedtls_ecp_group_load(). + * \param d The destination MPI (secret part). + * This must be initialized. + * \param Q The destination point (public part). + * This must be initialized. + * \param f_rng The RNG function. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may + * be \c NULL if \p f_rng doesn't need a context argument. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_MPI_XXX error code + * on failure. + */ +int mbedtls_ecp_gen_keypair(mbedtls_ecp_group *grp, mbedtls_mpi *d, + mbedtls_ecp_point *Q, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief This function generates an ECP key. + * + * \param grp_id The ECP group identifier. + * \param key The destination key. This must be initialized. + * \param f_rng The RNG function to use. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may + * be \c NULL if \p f_rng doesn't need a context argument. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_MPI_XXX error code + * on failure. + */ +int mbedtls_ecp_gen_key(mbedtls_ecp_group_id grp_id, mbedtls_ecp_keypair *key, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief This function reads an elliptic curve private key. + * + * \param grp_id The ECP group identifier. + * \param key The destination key. + * \param buf The buffer containing the binary representation of the + * key. (Big endian integer for Weierstrass curves, byte + * string for Montgomery curves.) + * \param buflen The length of the buffer in bytes. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_INVALID_KEY error if the key is + * invalid. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed. + * \return #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if the operation for + * the group is not implemented. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_ecp_read_key(mbedtls_ecp_group_id grp_id, mbedtls_ecp_keypair *key, + const unsigned char *buf, size_t buflen); + +/** + * \brief This function exports an elliptic curve private key. + * + * \param key The private key. + * \param buf The output buffer for containing the binary representation + * of the key. (Big endian integer for Weierstrass curves, byte + * string for Montgomery curves.) + * \param buflen The total length of the buffer in bytes. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL if the \p key + representation is larger than the available space in \p buf. + * \return #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if the operation for + * the group is not implemented. + * \return Another negative error code on different kinds of failure. + */ +int mbedtls_ecp_write_key(mbedtls_ecp_keypair *key, + unsigned char *buf, size_t buflen); + +/** + * \brief This function checks that the keypair objects + * \p pub and \p prv have the same group and the + * same public point, and that the private key in + * \p prv is consistent with the public key. + * + * \param pub The keypair structure holding the public key. This + * must be initialized. If it contains a private key, that + * part is ignored. + * \param prv The keypair structure holding the full keypair. + * This must be initialized. + * \param f_rng The RNG function. This must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be \c + * NULL if \p f_rng doesn't need a context. + * + * \return \c 0 on success, meaning that the keys are valid and match. + * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if the keys are invalid or do not match. + * \return An \c MBEDTLS_ERR_ECP_XXX or an \c MBEDTLS_ERR_MPI_XXX + * error code on calculation failure. + */ +int mbedtls_ecp_check_pub_priv( + const mbedtls_ecp_keypair *pub, const mbedtls_ecp_keypair *prv, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng); + +/** + * \brief This function exports generic key-pair parameters. + * + * \param key The key pair to export from. + * \param grp Slot for exported ECP group. + * It must point to an initialized ECP group. + * \param d Slot for the exported secret value. + * It must point to an initialized mpi. + * \param Q Slot for the exported public value. + * It must point to an initialized ECP point. + * + * \return \c 0 on success, + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED on memory-allocation failure. + * \return #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if key id doesn't + * correspond to a known group. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ecp_export(const mbedtls_ecp_keypair *key, mbedtls_ecp_group *grp, + mbedtls_mpi *d, mbedtls_ecp_point *Q); + +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief The ECP checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_ecp_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* ecp.h */ diff --git a/include/mbedtls/entropy.h b/include/mbedtls/entropy.h new file mode 100644 index 0000000..20fd687 --- /dev/null +++ b/include/mbedtls/entropy.h @@ -0,0 +1,273 @@ +/** + * \file entropy.h + * + * \brief Entropy accumulator implementation + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_ENTROPY_H +#define MBEDTLS_ENTROPY_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stddef.h> + +#include "md.h" + +#if defined(MBEDTLS_MD_CAN_SHA512) && !defined(MBEDTLS_ENTROPY_FORCE_SHA256) +#define MBEDTLS_ENTROPY_SHA512_ACCUMULATOR +#define MBEDTLS_ENTROPY_MD MBEDTLS_MD_SHA512 +#define MBEDTLS_ENTROPY_BLOCK_SIZE 64 /**< Block size of entropy accumulator (SHA-512) */ +#else +#if defined(MBEDTLS_MD_CAN_SHA256) +#define MBEDTLS_ENTROPY_SHA256_ACCUMULATOR +#define MBEDTLS_ENTROPY_MD MBEDTLS_MD_SHA256 +#define MBEDTLS_ENTROPY_BLOCK_SIZE 32 /**< Block size of entropy accumulator (SHA-256) */ +#endif +#endif + +#if defined(MBEDTLS_THREADING_C) +#include "mbedtls/threading.h" +#endif + + +/** Critical entropy source failure. */ +#define MBEDTLS_ERR_ENTROPY_SOURCE_FAILED -0x003C +/** No more sources can be added. */ +#define MBEDTLS_ERR_ENTROPY_MAX_SOURCES -0x003E +/** No sources have been added to poll. */ +#define MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED -0x0040 +/** No strong sources have been added to poll. */ +#define MBEDTLS_ERR_ENTROPY_NO_STRONG_SOURCE -0x003D +/** Read/write error in file. */ +#define MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR -0x003F + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in mbedtls_config.h or define them on the compiler command line. + * \{ + */ + +#if !defined(MBEDTLS_ENTROPY_MAX_SOURCES) +#define MBEDTLS_ENTROPY_MAX_SOURCES 20 /**< Maximum number of sources supported */ +#endif + +#if !defined(MBEDTLS_ENTROPY_MAX_GATHER) +#define MBEDTLS_ENTROPY_MAX_GATHER 128 /**< Maximum amount requested from entropy sources */ +#endif + +/** \} name SECTION: Module settings */ + +#define MBEDTLS_ENTROPY_MAX_SEED_SIZE 1024 /**< Maximum size of seed we read from seed file */ +#define MBEDTLS_ENTROPY_SOURCE_MANUAL MBEDTLS_ENTROPY_MAX_SOURCES + +#define MBEDTLS_ENTROPY_SOURCE_STRONG 1 /**< Entropy source is strong */ +#define MBEDTLS_ENTROPY_SOURCE_WEAK 0 /**< Entropy source is weak */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Entropy poll callback pointer + * + * \param data Callback-specific data pointer + * \param output Data to fill + * \param len Maximum size to provide + * \param olen The actual amount of bytes put into the buffer (Can be 0) + * + * \return 0 if no critical failures occurred, + * MBEDTLS_ERR_ENTROPY_SOURCE_FAILED otherwise + */ +typedef int (*mbedtls_entropy_f_source_ptr)(void *data, unsigned char *output, size_t len, + size_t *olen); + +/** + * \brief Entropy source state + */ +typedef struct mbedtls_entropy_source_state { + mbedtls_entropy_f_source_ptr MBEDTLS_PRIVATE(f_source); /**< The entropy source callback */ + void *MBEDTLS_PRIVATE(p_source); /**< The callback data pointer */ + size_t MBEDTLS_PRIVATE(size); /**< Amount received in bytes */ + size_t MBEDTLS_PRIVATE(threshold); /**< Minimum bytes required before release */ + int MBEDTLS_PRIVATE(strong); /**< Is the source strong? */ +} +mbedtls_entropy_source_state; + +/** + * \brief Entropy context structure + */ +typedef struct mbedtls_entropy_context { + mbedtls_md_context_t MBEDTLS_PRIVATE(accumulator); + int MBEDTLS_PRIVATE(accumulator_started); /* 0 after init. + * 1 after the first update. + * -1 after free. */ + int MBEDTLS_PRIVATE(source_count); /* Number of entries used in source. */ + mbedtls_entropy_source_state MBEDTLS_PRIVATE(source)[MBEDTLS_ENTROPY_MAX_SOURCES]; +#if defined(MBEDTLS_THREADING_C) + mbedtls_threading_mutex_t MBEDTLS_PRIVATE(mutex); /*!< mutex */ +#endif +#if defined(MBEDTLS_ENTROPY_NV_SEED) + int MBEDTLS_PRIVATE(initial_entropy_run); +#endif +} +mbedtls_entropy_context; + +#if !defined(MBEDTLS_NO_PLATFORM_ENTROPY) +/** + * \brief Platform-specific entropy poll callback + */ +int mbedtls_platform_entropy_poll(void *data, + unsigned char *output, size_t len, size_t *olen); +#endif + +/** + * \brief Initialize the context + * + * \param ctx Entropy context to initialize + */ +void mbedtls_entropy_init(mbedtls_entropy_context *ctx); + +/** + * \brief Free the data in the context + * + * \param ctx Entropy context to free + */ +void mbedtls_entropy_free(mbedtls_entropy_context *ctx); + +/** + * \brief Adds an entropy source to poll + * (Thread-safe if MBEDTLS_THREADING_C is enabled) + * + * \param ctx Entropy context + * \param f_source Entropy function + * \param p_source Function data + * \param threshold Minimum required from source before entropy is released + * ( with mbedtls_entropy_func() ) (in bytes) + * \param strong MBEDTLS_ENTROPY_SOURCE_STRONG or + * MBEDTLS_ENTROPY_SOURCE_WEAK. + * At least one strong source needs to be added. + * Weaker sources (such as the cycle counter) can be used as + * a complement. + * + * \return 0 if successful or MBEDTLS_ERR_ENTROPY_MAX_SOURCES + */ +int mbedtls_entropy_add_source(mbedtls_entropy_context *ctx, + mbedtls_entropy_f_source_ptr f_source, void *p_source, + size_t threshold, int strong); + +/** + * \brief Trigger an extra gather poll for the accumulator + * (Thread-safe if MBEDTLS_THREADING_C is enabled) + * + * \param ctx Entropy context + * + * \return 0 if successful, or MBEDTLS_ERR_ENTROPY_SOURCE_FAILED + */ +int mbedtls_entropy_gather(mbedtls_entropy_context *ctx); + +/** + * \brief Retrieve entropy from the accumulator + * (Maximum length: MBEDTLS_ENTROPY_BLOCK_SIZE) + * (Thread-safe if MBEDTLS_THREADING_C is enabled) + * + * \param data Entropy context + * \param output Buffer to fill + * \param len Number of bytes desired, must be at most MBEDTLS_ENTROPY_BLOCK_SIZE + * + * \return 0 if successful, or MBEDTLS_ERR_ENTROPY_SOURCE_FAILED + */ +int mbedtls_entropy_func(void *data, unsigned char *output, size_t len); + +/** + * \brief Add data to the accumulator manually + * (Thread-safe if MBEDTLS_THREADING_C is enabled) + * + * \param ctx Entropy context + * \param data Data to add + * \param len Length of data + * + * \return 0 if successful + */ +int mbedtls_entropy_update_manual(mbedtls_entropy_context *ctx, + const unsigned char *data, size_t len); + +#if defined(MBEDTLS_ENTROPY_NV_SEED) +/** + * \brief Trigger an update of the seed file in NV by using the + * current entropy pool. + * + * \param ctx Entropy context + * + * \return 0 if successful + */ +int mbedtls_entropy_update_nv_seed(mbedtls_entropy_context *ctx); +#endif /* MBEDTLS_ENTROPY_NV_SEED */ + +#if defined(MBEDTLS_FS_IO) +/** + * \brief Write a seed file + * + * \param ctx Entropy context + * \param path Name of the file + * + * \return 0 if successful, + * MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR on file error, or + * MBEDTLS_ERR_ENTROPY_SOURCE_FAILED + */ +int mbedtls_entropy_write_seed_file(mbedtls_entropy_context *ctx, const char *path); + +/** + * \brief Read and update a seed file. Seed is added to this + * instance. No more than MBEDTLS_ENTROPY_MAX_SEED_SIZE bytes are + * read from the seed file. The rest is ignored. + * + * \param ctx Entropy context + * \param path Name of the file + * + * \return 0 if successful, + * MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR on file error, + * MBEDTLS_ERR_ENTROPY_SOURCE_FAILED + */ +int mbedtls_entropy_update_seed_file(mbedtls_entropy_context *ctx, const char *path); +#endif /* MBEDTLS_FS_IO */ + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief Checkup routine + * + * This module self-test also calls the entropy self-test, + * mbedtls_entropy_source_self_test(); + * + * \return 0 if successful, or 1 if a test failed + */ +int mbedtls_entropy_self_test(int verbose); + +#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT) +/** + * \brief Checkup routine + * + * Verifies the integrity of the hardware entropy source + * provided by the function 'mbedtls_hardware_poll()'. + * + * Note this is the only hardware entropy source that is known + * at link time, and other entropy sources configured + * dynamically at runtime by the function + * mbedtls_entropy_add_source() will not be tested. + * + * \return 0 if successful, or 1 if a test failed + */ +int mbedtls_entropy_source_self_test(int verbose); +#endif /* MBEDTLS_ENTROPY_HARDWARE_ALT */ +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* entropy.h */ diff --git a/include/mbedtls/error.h b/include/mbedtls/error.h new file mode 100644 index 0000000..186589a --- /dev/null +++ b/include/mbedtls/error.h @@ -0,0 +1,201 @@ +/** + * \file error.h + * + * \brief Error to string translation + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_ERROR_H +#define MBEDTLS_ERROR_H + +#include "mbedtls/build_info.h" + +#include <stddef.h> + +/** + * Error code layout. + * + * Currently we try to keep all error codes within the negative space of 16 + * bits signed integers to support all platforms (-0x0001 - -0x7FFF). In + * addition we'd like to give two layers of information on the error if + * possible. + * + * For that purpose the error codes are segmented in the following manner: + * + * 16 bit error code bit-segmentation + * + * 1 bit - Unused (sign bit) + * 3 bits - High level module ID + * 5 bits - Module-dependent error code + * 7 bits - Low level module errors + * + * For historical reasons, low-level error codes are divided in even and odd, + * even codes were assigned first, and -1 is reserved for other errors. + * + * Low-level module errors (0x0002-0x007E, 0x0001-0x007F) + * + * Module Nr Codes assigned + * ERROR 2 0x006E 0x0001 + * MPI 7 0x0002-0x0010 + * GCM 3 0x0012-0x0016 0x0013-0x0013 + * THREADING 3 0x001A-0x001E + * AES 5 0x0020-0x0022 0x0021-0x0025 + * CAMELLIA 3 0x0024-0x0026 0x0027-0x0027 + * BASE64 2 0x002A-0x002C + * OID 1 0x002E-0x002E 0x000B-0x000B + * PADLOCK 1 0x0030-0x0030 + * DES 2 0x0032-0x0032 0x0033-0x0033 + * CTR_DBRG 4 0x0034-0x003A + * ENTROPY 3 0x003C-0x0040 0x003D-0x003F + * NET 13 0x0042-0x0052 0x0043-0x0049 + * ARIA 4 0x0058-0x005E + * ASN1 7 0x0060-0x006C + * CMAC 1 0x007A-0x007A + * PBKDF2 1 0x007C-0x007C + * HMAC_DRBG 4 0x0003-0x0009 + * CCM 3 0x000D-0x0011 + * MD5 1 0x002F-0x002F + * RIPEMD160 1 0x0031-0x0031 + * SHA1 1 0x0035-0x0035 0x0073-0x0073 + * SHA256 1 0x0037-0x0037 0x0074-0x0074 + * SHA512 1 0x0039-0x0039 0x0075-0x0075 + * SHA-3 1 0x0076-0x0076 + * CHACHA20 3 0x0051-0x0055 + * POLY1305 3 0x0057-0x005B + * CHACHAPOLY 2 0x0054-0x0056 + * PLATFORM 2 0x0070-0x0072 + * LMS 5 0x0011-0x0019 + * + * High-level module nr (3 bits - 0x0...-0x7...) + * Name ID Nr of Errors + * PEM 1 9 + * PKCS#12 1 4 (Started from top) + * X509 2 20 + * PKCS5 2 4 (Started from top) + * DHM 3 11 + * PK 3 15 (Started from top) + * RSA 4 11 + * ECP 4 10 (Started from top) + * MD 5 5 + * HKDF 5 1 (Started from top) + * PKCS7 5 12 (Started from 0x5300) + * SSL 5 2 (Started from 0x5F00) + * CIPHER 6 8 (Started from 0x6080) + * SSL 6 22 (Started from top, plus 0x6000) + * SSL 7 20 (Started from 0x7000, gaps at + * 0x7380, 0x7900-0x7980, 0x7A80-0x7E80) + * + * Module dependent error code (5 bits 0x.00.-0x.F8.) + */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** Generic error */ +#define MBEDTLS_ERR_ERROR_GENERIC_ERROR -0x0001 +/** This is a bug in the library */ +#define MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED -0x006E + +/** Hardware accelerator failed */ +#define MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED -0x0070 +/** The requested feature is not supported by the platform */ +#define MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED -0x0072 + +/** + * \brief Combines a high-level and low-level error code together. + * + * Wrapper macro for mbedtls_error_add(). See that function for + * more details. + */ +#define MBEDTLS_ERROR_ADD(high, low) \ + mbedtls_error_add(high, low, __FILE__, __LINE__) + +#if defined(MBEDTLS_TEST_HOOKS) +/** + * \brief Testing hook called before adding/combining two error codes together. + * Only used when invasive testing is enabled via MBEDTLS_TEST_HOOKS. + */ +extern void (*mbedtls_test_hook_error_add)(int, int, const char *, int); +#endif + +/** + * \brief Combines a high-level and low-level error code together. + * + * This function can be called directly however it is usually + * called via the #MBEDTLS_ERROR_ADD macro. + * + * While a value of zero is not a negative error code, it is still an + * error code (that denotes success) and can be combined with both a + * negative error code or another value of zero. + * + * \note When invasive testing is enabled via #MBEDTLS_TEST_HOOKS, also try to + * call \link mbedtls_test_hook_error_add \endlink. + * + * \param high high-level error code. See error.h for more details. + * \param low low-level error code. See error.h for more details. + * \param file file where this error code addition occurred. + * \param line line where this error code addition occurred. + */ +static inline int mbedtls_error_add(int high, int low, + const char *file, int line) +{ +#if defined(MBEDTLS_TEST_HOOKS) + if (*mbedtls_test_hook_error_add != NULL) { + (*mbedtls_test_hook_error_add)(high, low, file, line); + } +#endif + (void) file; + (void) line; + + return high + low; +} + +/** + * \brief Translate an Mbed TLS error code into a string representation. + * The result is truncated if necessary and always includes a + * terminating null byte. + * + * \param errnum error code + * \param buffer buffer to place representation in + * \param buflen length of the buffer + */ +void mbedtls_strerror(int errnum, char *buffer, size_t buflen); + +/** + * \brief Translate the high-level part of an Mbed TLS error code into a string + * representation. + * + * This function returns a const pointer to an un-modifiable string. The caller + * must not try to modify the string. It is intended to be used mostly for + * logging purposes. + * + * \param error_code error code + * + * \return The string representation of the error code, or \c NULL if the error + * code is unknown. + */ +const char *mbedtls_high_level_strerr(int error_code); + +/** + * \brief Translate the low-level part of an Mbed TLS error code into a string + * representation. + * + * This function returns a const pointer to an un-modifiable string. The caller + * must not try to modify the string. It is intended to be used mostly for + * logging purposes. + * + * \param error_code error code + * + * \return The string representation of the error code, or \c NULL if the error + * code is unknown. + */ +const char *mbedtls_low_level_strerr(int error_code); + +#ifdef __cplusplus +} +#endif + +#endif /* error.h */ diff --git a/include/mbedtls/gcm.h b/include/mbedtls/gcm.h new file mode 100644 index 0000000..837cecc --- /dev/null +++ b/include/mbedtls/gcm.h @@ -0,0 +1,370 @@ +/** + * \file gcm.h + * + * \brief This file contains GCM definitions and functions. + * + * The Galois/Counter Mode (GCM) for 128-bit block ciphers is defined + * in <em>D. McGrew, J. Viega, The Galois/Counter Mode of Operation + * (GCM), Natl. Inst. Stand. Technol.</em> + * + * For more information on GCM, see <em>NIST SP 800-38D: Recommendation for + * Block Cipher Modes of Operation: Galois/Counter Mode (GCM) and GMAC</em>. + * + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_GCM_H +#define MBEDTLS_GCM_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/cipher.h" + +#include <stdint.h> + +#define MBEDTLS_GCM_ENCRYPT 1 +#define MBEDTLS_GCM_DECRYPT 0 + +/** Authenticated decryption failed. */ +#define MBEDTLS_ERR_GCM_AUTH_FAILED -0x0012 +/** Bad input parameters to function. */ +#define MBEDTLS_ERR_GCM_BAD_INPUT -0x0014 +/** An output buffer is too small. */ +#define MBEDTLS_ERR_GCM_BUFFER_TOO_SMALL -0x0016 + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_GCM_ALT) + +/** + * \brief The GCM context structure. + */ +typedef struct mbedtls_gcm_context { + mbedtls_cipher_context_t MBEDTLS_PRIVATE(cipher_ctx); /*!< The cipher context used. */ + uint64_t MBEDTLS_PRIVATE(HL)[16]; /*!< Precalculated HTable low. */ + uint64_t MBEDTLS_PRIVATE(HH)[16]; /*!< Precalculated HTable high. */ + uint64_t MBEDTLS_PRIVATE(len); /*!< The total length of the encrypted data. */ + uint64_t MBEDTLS_PRIVATE(add_len); /*!< The total length of the additional data. */ + unsigned char MBEDTLS_PRIVATE(base_ectr)[16]; /*!< The first ECTR for tag. */ + unsigned char MBEDTLS_PRIVATE(y)[16]; /*!< The Y working value. */ + unsigned char MBEDTLS_PRIVATE(buf)[16]; /*!< The buf working value. */ + int MBEDTLS_PRIVATE(mode); /*!< The operation to perform: + #MBEDTLS_GCM_ENCRYPT or + #MBEDTLS_GCM_DECRYPT. */ +} +mbedtls_gcm_context; + +#else /* !MBEDTLS_GCM_ALT */ +#include "gcm_alt.h" +#endif /* !MBEDTLS_GCM_ALT */ + +/** + * \brief This function initializes the specified GCM context, + * to make references valid, and prepares the context + * for mbedtls_gcm_setkey() or mbedtls_gcm_free(). + * + * The function does not bind the GCM context to a particular + * cipher, nor set the key. For this purpose, use + * mbedtls_gcm_setkey(). + * + * \param ctx The GCM context to initialize. This must not be \c NULL. + */ +void mbedtls_gcm_init(mbedtls_gcm_context *ctx); + +/** + * \brief This function associates a GCM context with a + * cipher algorithm and a key. + * + * \param ctx The GCM context. This must be initialized. + * \param cipher The 128-bit block cipher to use. + * \param key The encryption key. This must be a readable buffer of at + * least \p keybits bits. + * \param keybits The key size in bits. Valid options are: + * <ul><li>128 bits</li> + * <li>192 bits</li> + * <li>256 bits</li></ul> + * + * \return \c 0 on success. + * \return A cipher-specific error code on failure. + */ +int mbedtls_gcm_setkey(mbedtls_gcm_context *ctx, + mbedtls_cipher_id_t cipher, + const unsigned char *key, + unsigned int keybits); + +/** + * \brief This function performs GCM encryption or decryption of a buffer. + * + * \note For encryption, the output buffer can be the same as the + * input buffer. For decryption, the output buffer cannot be + * the same as input buffer. If the buffers overlap, the output + * buffer must trail at least 8 Bytes behind the input buffer. + * + * \warning When this function performs a decryption, it outputs the + * authentication tag and does not verify that the data is + * authentic. You should use this function to perform encryption + * only. For decryption, use mbedtls_gcm_auth_decrypt() instead. + * + * \param ctx The GCM context to use for encryption or decryption. This + * must be initialized. + * \param mode The operation to perform: + * - #MBEDTLS_GCM_ENCRYPT to perform authenticated encryption. + * The ciphertext is written to \p output and the + * authentication tag is written to \p tag. + * - #MBEDTLS_GCM_DECRYPT to perform decryption. + * The plaintext is written to \p output and the + * authentication tag is written to \p tag. + * Note that this mode is not recommended, because it does + * not verify the authenticity of the data. For this reason, + * you should use mbedtls_gcm_auth_decrypt() instead of + * calling this function in decryption mode. + * \param length The length of the input data, which is equal to the length + * of the output data. + * \param iv The initialization vector. This must be a readable buffer of + * at least \p iv_len Bytes. + * \param iv_len The length of the IV. + * \param add The buffer holding the additional data. This must be of at + * least that size in Bytes. + * \param add_len The length of the additional data. + * \param input The buffer holding the input data. If \p length is greater + * than zero, this must be a readable buffer of at least that + * size in Bytes. + * \param output The buffer for holding the output data. If \p length is greater + * than zero, this must be a writable buffer of at least that + * size in Bytes. + * \param tag_len The length of the tag to generate. + * \param tag The buffer for holding the tag. This must be a writable + * buffer of at least \p tag_len Bytes. + * + * \return \c 0 if the encryption or decryption was performed + * successfully. Note that in #MBEDTLS_GCM_DECRYPT mode, + * this does not indicate that the data is authentic. + * \return #MBEDTLS_ERR_GCM_BAD_INPUT if the lengths or pointers are + * not valid or a cipher-specific error code if the encryption + * or decryption failed. + */ +int mbedtls_gcm_crypt_and_tag(mbedtls_gcm_context *ctx, + int mode, + size_t length, + const unsigned char *iv, + size_t iv_len, + const unsigned char *add, + size_t add_len, + const unsigned char *input, + unsigned char *output, + size_t tag_len, + unsigned char *tag); + +/** + * \brief This function performs a GCM authenticated decryption of a + * buffer. + * + * \note For decryption, the output buffer cannot be the same as + * input buffer. If the buffers overlap, the output buffer + * must trail at least 8 Bytes behind the input buffer. + * + * \param ctx The GCM context. This must be initialized. + * \param length The length of the ciphertext to decrypt, which is also + * the length of the decrypted plaintext. + * \param iv The initialization vector. This must be a readable buffer + * of at least \p iv_len Bytes. + * \param iv_len The length of the IV. + * \param add The buffer holding the additional data. This must be of at + * least that size in Bytes. + * \param add_len The length of the additional data. + * \param tag The buffer holding the tag to verify. This must be a + * readable buffer of at least \p tag_len Bytes. + * \param tag_len The length of the tag to verify. + * \param input The buffer holding the ciphertext. If \p length is greater + * than zero, this must be a readable buffer of at least that + * size. + * \param output The buffer for holding the decrypted plaintext. If \p length + * is greater than zero, this must be a writable buffer of at + * least that size. + * + * \return \c 0 if successful and authenticated. + * \return #MBEDTLS_ERR_GCM_AUTH_FAILED if the tag does not match. + * \return #MBEDTLS_ERR_GCM_BAD_INPUT if the lengths or pointers are + * not valid or a cipher-specific error code if the decryption + * failed. + */ +int mbedtls_gcm_auth_decrypt(mbedtls_gcm_context *ctx, + size_t length, + const unsigned char *iv, + size_t iv_len, + const unsigned char *add, + size_t add_len, + const unsigned char *tag, + size_t tag_len, + const unsigned char *input, + unsigned char *output); + +/** + * \brief This function starts a GCM encryption or decryption + * operation. + * + * \param ctx The GCM context. This must be initialized. + * \param mode The operation to perform: #MBEDTLS_GCM_ENCRYPT or + * #MBEDTLS_GCM_DECRYPT. + * \param iv The initialization vector. This must be a readable buffer of + * at least \p iv_len Bytes. + * \param iv_len The length of the IV. + * + * \return \c 0 on success. + */ +int mbedtls_gcm_starts(mbedtls_gcm_context *ctx, + int mode, + const unsigned char *iv, + size_t iv_len); + +/** + * \brief This function feeds an input buffer as associated data + * (authenticated but not encrypted data) in a GCM + * encryption or decryption operation. + * + * Call this function after mbedtls_gcm_starts() to pass + * the associated data. If the associated data is empty, + * you do not need to call this function. You may not + * call this function after calling mbedtls_cipher_update(). + * + * \param ctx The GCM context. This must have been started with + * mbedtls_gcm_starts() and must not have yet received + * any input with mbedtls_gcm_update(). + * \param add The buffer holding the additional data, or \c NULL + * if \p add_len is \c 0. + * \param add_len The length of the additional data. If \c 0, + * \p add may be \c NULL. + * + * \return \c 0 on success. + */ +int mbedtls_gcm_update_ad(mbedtls_gcm_context *ctx, + const unsigned char *add, + size_t add_len); + +/** + * \brief This function feeds an input buffer into an ongoing GCM + * encryption or decryption operation. + * + * You may call this function zero, one or more times + * to pass successive parts of the input: the plaintext to + * encrypt, or the ciphertext (not including the tag) to + * decrypt. After the last part of the input, call + * mbedtls_gcm_finish(). + * + * This function may produce output in one of the following + * ways: + * - Immediate output: the output length is always equal + * to the input length. + * - Buffered output: the output consists of a whole number + * of 16-byte blocks. If the total input length so far + * (not including associated data) is 16 \* *B* + *A* + * with *A* < 16 then the total output length is 16 \* *B*. + * + * In particular: + * - It is always correct to call this function with + * \p output_size >= \p input_length + 15. + * - If \p input_length is a multiple of 16 for all the calls + * to this function during an operation, then it is + * correct to use \p output_size = \p input_length. + * + * \note For decryption, the output buffer cannot be the same as + * input buffer. If the buffers overlap, the output buffer + * must trail at least 8 Bytes behind the input buffer. + * + * \param ctx The GCM context. This must be initialized. + * \param input The buffer holding the input data. If \p input_length + * is greater than zero, this must be a readable buffer + * of at least \p input_length bytes. + * \param input_length The length of the input data in bytes. + * \param output The buffer for the output data. If \p output_size + * is greater than zero, this must be a writable buffer of + * of at least \p output_size bytes. + * \param output_size The size of the output buffer in bytes. + * See the function description regarding the output size. + * \param output_length On success, \p *output_length contains the actual + * length of the output written in \p output. + * On failure, the content of \p *output_length is + * unspecified. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_GCM_BAD_INPUT on failure: + * total input length too long, + * unsupported input/output buffer overlap detected, + * or \p output_size too small. + */ +int mbedtls_gcm_update(mbedtls_gcm_context *ctx, + const unsigned char *input, size_t input_length, + unsigned char *output, size_t output_size, + size_t *output_length); + +/** + * \brief This function finishes the GCM operation and generates + * the authentication tag. + * + * It wraps up the GCM stream, and generates the + * tag. The tag can have a maximum length of 16 Bytes. + * + * \param ctx The GCM context. This must be initialized. + * \param tag The buffer for holding the tag. This must be a writable + * buffer of at least \p tag_len Bytes. + * \param tag_len The length of the tag to generate. This must be at least + * four. + * \param output The buffer for the final output. + * If \p output_size is nonzero, this must be a writable + * buffer of at least \p output_size bytes. + * \param output_size The size of the \p output buffer in bytes. + * This must be large enough for the output that + * mbedtls_gcm_update() has not produced. In particular: + * - If mbedtls_gcm_update() produces immediate output, + * or if the total input size is a multiple of \c 16, + * then mbedtls_gcm_finish() never produces any output, + * so \p output_size can be \c 0. + * - \p output_size never needs to be more than \c 15. + * \param output_length On success, \p *output_length contains the actual + * length of the output written in \p output. + * On failure, the content of \p *output_length is + * unspecified. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_GCM_BAD_INPUT on failure: + * invalid value of \p tag_len, + * or \p output_size too small. + */ +int mbedtls_gcm_finish(mbedtls_gcm_context *ctx, + unsigned char *output, size_t output_size, + size_t *output_length, + unsigned char *tag, size_t tag_len); + +/** + * \brief This function clears a GCM context and the underlying + * cipher sub-context. + * + * \param ctx The GCM context to clear. If this is \c NULL, the call has + * no effect. Otherwise, this must be initialized. + */ +void mbedtls_gcm_free(mbedtls_gcm_context *ctx); + +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief The GCM checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_gcm_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + + +#endif /* gcm.h */ diff --git a/include/mbedtls/hkdf.h b/include/mbedtls/hkdf.h new file mode 100644 index 0000000..930e93f --- /dev/null +++ b/include/mbedtls/hkdf.h @@ -0,0 +1,124 @@ +/** + * \file hkdf.h + * + * \brief This file contains the HKDF interface. + * + * The HMAC-based Extract-and-Expand Key Derivation Function (HKDF) is + * specified by RFC 5869. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_HKDF_H +#define MBEDTLS_HKDF_H + +#include "mbedtls/build_info.h" + +#include "mbedtls/md.h" + +/** + * \name HKDF Error codes + * \{ + */ +/** Bad input parameters to function. */ +#define MBEDTLS_ERR_HKDF_BAD_INPUT_DATA -0x5F80 +/** \} name */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief This is the HMAC-based Extract-and-Expand Key Derivation Function + * (HKDF). + * + * \param md A hash function; md.size denotes the length of the hash + * function output in bytes. + * \param salt An optional salt value (a non-secret random value); + * if the salt is not provided, a string of all zeros of + * md.size length is used as the salt. + * \param salt_len The length in bytes of the optional \p salt. + * \param ikm The input keying material. + * \param ikm_len The length in bytes of \p ikm. + * \param info An optional context and application specific information + * string. This can be a zero-length string. + * \param info_len The length of \p info in bytes. + * \param okm The output keying material of \p okm_len bytes. + * \param okm_len The length of the output keying material in bytes. This + * must be less than or equal to 255 * md.size bytes. + * + * \return 0 on success. + * \return #MBEDTLS_ERR_HKDF_BAD_INPUT_DATA when the parameters are invalid. + * \return An MBEDTLS_ERR_MD_* error for errors returned from the underlying + * MD layer. + */ +int mbedtls_hkdf(const mbedtls_md_info_t *md, const unsigned char *salt, + size_t salt_len, const unsigned char *ikm, size_t ikm_len, + const unsigned char *info, size_t info_len, + unsigned char *okm, size_t okm_len); + +/** + * \brief Take the input keying material \p ikm and extract from it a + * fixed-length pseudorandom key \p prk. + * + * \warning This function should only be used if the security of it has been + * studied and established in that particular context (eg. TLS 1.3 + * key schedule). For standard HKDF security guarantees use + * \c mbedtls_hkdf instead. + * + * \param md A hash function; md.size denotes the length of the + * hash function output in bytes. + * \param salt An optional salt value (a non-secret random value); + * if the salt is not provided, a string of all zeros + * of md.size length is used as the salt. + * \param salt_len The length in bytes of the optional \p salt. + * \param ikm The input keying material. + * \param ikm_len The length in bytes of \p ikm. + * \param[out] prk A pseudorandom key of at least md.size bytes. + * + * \return 0 on success. + * \return #MBEDTLS_ERR_HKDF_BAD_INPUT_DATA when the parameters are invalid. + * \return An MBEDTLS_ERR_MD_* error for errors returned from the underlying + * MD layer. + */ +int mbedtls_hkdf_extract(const mbedtls_md_info_t *md, + const unsigned char *salt, size_t salt_len, + const unsigned char *ikm, size_t ikm_len, + unsigned char *prk); + +/** + * \brief Expand the supplied \p prk into several additional pseudorandom + * keys, which is the output of the HKDF. + * + * \warning This function should only be used if the security of it has been + * studied and established in that particular context (eg. TLS 1.3 + * key schedule). For standard HKDF security guarantees use + * \c mbedtls_hkdf instead. + * + * \param md A hash function; md.size denotes the length of the hash + * function output in bytes. + * \param prk A pseudorandom key of at least md.size bytes. \p prk is + * usually the output from the HKDF extract step. + * \param prk_len The length in bytes of \p prk. + * \param info An optional context and application specific information + * string. This can be a zero-length string. + * \param info_len The length of \p info in bytes. + * \param okm The output keying material of \p okm_len bytes. + * \param okm_len The length of the output keying material in bytes. This + * must be less than or equal to 255 * md.size bytes. + * + * \return 0 on success. + * \return #MBEDTLS_ERR_HKDF_BAD_INPUT_DATA when the parameters are invalid. + * \return An MBEDTLS_ERR_MD_* error for errors returned from the underlying + * MD layer. + */ +int mbedtls_hkdf_expand(const mbedtls_md_info_t *md, const unsigned char *prk, + size_t prk_len, const unsigned char *info, + size_t info_len, unsigned char *okm, size_t okm_len); + +#ifdef __cplusplus +} +#endif + +#endif /* hkdf.h */ diff --git a/include/mbedtls/hmac_drbg.h b/include/mbedtls/hmac_drbg.h new file mode 100644 index 0000000..18b1b75 --- /dev/null +++ b/include/mbedtls/hmac_drbg.h @@ -0,0 +1,434 @@ +/** + * \file hmac_drbg.h + * + * \brief The HMAC_DRBG pseudorandom generator. + * + * This module implements the HMAC_DRBG pseudorandom generator described + * in <em>NIST SP 800-90A: Recommendation for Random Number Generation Using + * Deterministic Random Bit Generators</em>. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_HMAC_DRBG_H +#define MBEDTLS_HMAC_DRBG_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/md.h" + +#if defined(MBEDTLS_THREADING_C) +#include "mbedtls/threading.h" +#endif + +/* + * Error codes + */ +/** Too many random requested in single call. */ +#define MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG -0x0003 +/** Input too large (Entropy + additional). */ +#define MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG -0x0005 +/** Read/write error in file. */ +#define MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR -0x0007 +/** The entropy source failed. */ +#define MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED -0x0009 + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in mbedtls_config.h or define them on the compiler command line. + * \{ + */ + +#if !defined(MBEDTLS_HMAC_DRBG_RESEED_INTERVAL) +#define MBEDTLS_HMAC_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */ +#endif + +#if !defined(MBEDTLS_HMAC_DRBG_MAX_INPUT) +#define MBEDTLS_HMAC_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */ +#endif + +#if !defined(MBEDTLS_HMAC_DRBG_MAX_REQUEST) +#define MBEDTLS_HMAC_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */ +#endif + +#if !defined(MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT) +#define MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */ +#endif + +/** \} name SECTION: Module settings */ + +#define MBEDTLS_HMAC_DRBG_PR_OFF 0 /**< No prediction resistance */ +#define MBEDTLS_HMAC_DRBG_PR_ON 1 /**< Prediction resistance enabled */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * HMAC_DRBG context. + */ +typedef struct mbedtls_hmac_drbg_context { + /* Working state: the key K is not stored explicitly, + * but is implied by the HMAC context */ + mbedtls_md_context_t MBEDTLS_PRIVATE(md_ctx); /*!< HMAC context (inc. K) */ + unsigned char MBEDTLS_PRIVATE(V)[MBEDTLS_MD_MAX_SIZE]; /*!< V in the spec */ + int MBEDTLS_PRIVATE(reseed_counter); /*!< reseed counter */ + + /* Administrative state */ + size_t MBEDTLS_PRIVATE(entropy_len); /*!< entropy bytes grabbed on each (re)seed */ + int MBEDTLS_PRIVATE(prediction_resistance); /*!< enable prediction resistance (Automatic + reseed before every random generation) */ + int MBEDTLS_PRIVATE(reseed_interval); /*!< reseed interval */ + + /* Callbacks */ + int(*MBEDTLS_PRIVATE(f_entropy))(void *, unsigned char *, size_t); /*!< entropy function */ + void *MBEDTLS_PRIVATE(p_entropy); /*!< context for the entropy function */ + +#if defined(MBEDTLS_THREADING_C) + /* Invariant: the mutex is initialized if and only if + * md_ctx->md_info != NULL. This means that the mutex is initialized + * during the initial seeding in mbedtls_hmac_drbg_seed() or + * mbedtls_hmac_drbg_seed_buf() and freed in mbedtls_ctr_drbg_free(). + * + * Note that this invariant may change without notice. Do not rely on it + * and do not access the mutex directly in application code. + */ + mbedtls_threading_mutex_t MBEDTLS_PRIVATE(mutex); +#endif +} mbedtls_hmac_drbg_context; + +/** + * \brief HMAC_DRBG context initialization. + * + * This function makes the context ready for mbedtls_hmac_drbg_seed(), + * mbedtls_hmac_drbg_seed_buf() or mbedtls_hmac_drbg_free(). + * + * \note The reseed interval is #MBEDTLS_HMAC_DRBG_RESEED_INTERVAL + * by default. Override this value by calling + * mbedtls_hmac_drbg_set_reseed_interval(). + * + * \param ctx HMAC_DRBG context to be initialized. + */ +void mbedtls_hmac_drbg_init(mbedtls_hmac_drbg_context *ctx); + +/** + * \brief HMAC_DRBG initial seeding. + * + * Set the initial seed and set up the entropy source for future reseeds. + * + * A typical choice for the \p f_entropy and \p p_entropy parameters is + * to use the entropy module: + * - \p f_entropy is mbedtls_entropy_func(); + * - \p p_entropy is an instance of ::mbedtls_entropy_context initialized + * with mbedtls_entropy_init() (which registers the platform's default + * entropy sources). + * + * You can provide a personalization string in addition to the + * entropy source, to make this instantiation as unique as possible. + * + * \note By default, the security strength as defined by NIST is: + * - 128 bits if \p md_info is SHA-1; + * - 192 bits if \p md_info is SHA-224; + * - 256 bits if \p md_info is SHA-256, SHA-384 or SHA-512. + * Note that SHA-256 is just as efficient as SHA-224. + * The security strength can be reduced if a smaller + * entropy length is set with + * mbedtls_hmac_drbg_set_entropy_len(). + * + * \note The default entropy length is the security strength + * (converted from bits to bytes). You can override + * it by calling mbedtls_hmac_drbg_set_entropy_len(). + * + * \note During the initial seeding, this function calls + * the entropy source to obtain a nonce + * whose length is half the entropy length. + */ +#if defined(MBEDTLS_THREADING_C) +/** + * \note When Mbed TLS is built with threading support, + * after this function returns successfully, + * it is safe to call mbedtls_hmac_drbg_random() + * from multiple threads. Other operations, including + * reseeding, are not thread-safe. + */ +#endif /* MBEDTLS_THREADING_C */ +/** + * \param ctx HMAC_DRBG context to be seeded. + * \param md_info MD algorithm to use for HMAC_DRBG. + * \param f_entropy The entropy callback, taking as arguments the + * \p p_entropy context, the buffer to fill, and the + * length of the buffer. + * \p f_entropy is always called with a length that is + * less than or equal to the entropy length. + * \param p_entropy The entropy context to pass to \p f_entropy. + * \param custom The personalization string. + * This can be \c NULL, in which case the personalization + * string is empty regardless of the value of \p len. + * \param len The length of the personalization string. + * This must be at most #MBEDTLS_HMAC_DRBG_MAX_INPUT + * and also at most + * #MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT - \c entropy_len * 3 / 2 + * where \c entropy_len is the entropy length + * described above. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA if \p md_info is + * invalid. + * \return #MBEDTLS_ERR_MD_ALLOC_FAILED if there was not enough + * memory to allocate context data. + * \return #MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED + * if the call to \p f_entropy failed. + */ +int mbedtls_hmac_drbg_seed(mbedtls_hmac_drbg_context *ctx, + const mbedtls_md_info_t *md_info, + int (*f_entropy)(void *, unsigned char *, size_t), + void *p_entropy, + const unsigned char *custom, + size_t len); + +/** + * \brief Initialisation of simplified HMAC_DRBG (never reseeds). + * + * This function is meant for use in algorithms that need a pseudorandom + * input such as deterministic ECDSA. + */ +#if defined(MBEDTLS_THREADING_C) +/** + * \note When Mbed TLS is built with threading support, + * after this function returns successfully, + * it is safe to call mbedtls_hmac_drbg_random() + * from multiple threads. Other operations, including + * reseeding, are not thread-safe. + */ +#endif /* MBEDTLS_THREADING_C */ +/** + * \param ctx HMAC_DRBG context to be initialised. + * \param md_info MD algorithm to use for HMAC_DRBG. + * \param data Concatenation of the initial entropy string and + * the additional data. + * \param data_len Length of \p data in bytes. + * + * \return \c 0 if successful. or + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA if \p md_info is + * invalid. + * \return #MBEDTLS_ERR_MD_ALLOC_FAILED if there was not enough + * memory to allocate context data. + */ +int mbedtls_hmac_drbg_seed_buf(mbedtls_hmac_drbg_context *ctx, + const mbedtls_md_info_t *md_info, + const unsigned char *data, size_t data_len); + +/** + * \brief This function turns prediction resistance on or off. + * The default value is off. + * + * \note If enabled, entropy is gathered at the beginning of + * every call to mbedtls_hmac_drbg_random_with_add() + * or mbedtls_hmac_drbg_random(). + * Only use this if your entropy source has sufficient + * throughput. + * + * \param ctx The HMAC_DRBG context. + * \param resistance #MBEDTLS_HMAC_DRBG_PR_ON or #MBEDTLS_HMAC_DRBG_PR_OFF. + */ +void mbedtls_hmac_drbg_set_prediction_resistance(mbedtls_hmac_drbg_context *ctx, + int resistance); + +/** + * \brief This function sets the amount of entropy grabbed on each + * seed or reseed. + * + * See the documentation of mbedtls_hmac_drbg_seed() for the default value. + * + * \param ctx The HMAC_DRBG context. + * \param len The amount of entropy to grab, in bytes. + */ +void mbedtls_hmac_drbg_set_entropy_len(mbedtls_hmac_drbg_context *ctx, + size_t len); + +/** + * \brief Set the reseed interval. + * + * The reseed interval is the number of calls to mbedtls_hmac_drbg_random() + * or mbedtls_hmac_drbg_random_with_add() after which the entropy function + * is called again. + * + * The default value is #MBEDTLS_HMAC_DRBG_RESEED_INTERVAL. + * + * \param ctx The HMAC_DRBG context. + * \param interval The reseed interval. + */ +void mbedtls_hmac_drbg_set_reseed_interval(mbedtls_hmac_drbg_context *ctx, + int interval); + +/** + * \brief This function updates the state of the HMAC_DRBG context. + * + * \note This function is not thread-safe. It is not safe + * to call this function if another thread might be + * concurrently obtaining random numbers from the same + * context or updating or reseeding the same context. + * + * \param ctx The HMAC_DRBG context. + * \param additional The data to update the state with. + * If this is \c NULL, there is no additional data. + * \param add_len Length of \p additional in bytes. + * Unused if \p additional is \c NULL. + * + * \return \c 0 on success, or an error from the underlying + * hash calculation. + */ +int mbedtls_hmac_drbg_update(mbedtls_hmac_drbg_context *ctx, + const unsigned char *additional, size_t add_len); + +/** + * \brief This function reseeds the HMAC_DRBG context, that is + * extracts data from the entropy source. + * + * \note This function is not thread-safe. It is not safe + * to call this function if another thread might be + * concurrently obtaining random numbers from the same + * context or updating or reseeding the same context. + * + * \param ctx The HMAC_DRBG context. + * \param additional Additional data to add to the state. + * If this is \c NULL, there is no additional data + * and \p len should be \c 0. + * \param len The length of the additional data. + * This must be at most #MBEDTLS_HMAC_DRBG_MAX_INPUT + * and also at most + * #MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT - \c entropy_len + * where \c entropy_len is the entropy length + * (see mbedtls_hmac_drbg_set_entropy_len()). + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED + * if a call to the entropy function failed. + */ +int mbedtls_hmac_drbg_reseed(mbedtls_hmac_drbg_context *ctx, + const unsigned char *additional, size_t len); + +/** + * \brief This function updates an HMAC_DRBG instance with additional + * data and uses it to generate random data. + * + * This function automatically reseeds if the reseed counter is exceeded + * or prediction resistance is enabled. + * + * \note This function is not thread-safe. It is not safe + * to call this function if another thread might be + * concurrently obtaining random numbers from the same + * context or updating or reseeding the same context. + * + * \param p_rng The HMAC_DRBG context. This must be a pointer to a + * #mbedtls_hmac_drbg_context structure. + * \param output The buffer to fill. + * \param output_len The length of the buffer in bytes. + * This must be at most #MBEDTLS_HMAC_DRBG_MAX_REQUEST. + * \param additional Additional data to update with. + * If this is \c NULL, there is no additional data + * and \p add_len should be \c 0. + * \param add_len The length of the additional data. + * This must be at most #MBEDTLS_HMAC_DRBG_MAX_INPUT. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED + * if a call to the entropy source failed. + * \return #MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG if + * \p output_len > #MBEDTLS_HMAC_DRBG_MAX_REQUEST. + * \return #MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG if + * \p add_len > #MBEDTLS_HMAC_DRBG_MAX_INPUT. + */ +int mbedtls_hmac_drbg_random_with_add(void *p_rng, + unsigned char *output, size_t output_len, + const unsigned char *additional, + size_t add_len); + +/** + * \brief This function uses HMAC_DRBG to generate random data. + * + * This function automatically reseeds if the reseed counter is exceeded + * or prediction resistance is enabled. + */ +#if defined(MBEDTLS_THREADING_C) +/** + * \note When Mbed TLS is built with threading support, + * it is safe to call mbedtls_ctr_drbg_random() + * from multiple threads. Other operations, including + * reseeding, are not thread-safe. + */ +#endif /* MBEDTLS_THREADING_C */ +/** + * \param p_rng The HMAC_DRBG context. This must be a pointer to a + * #mbedtls_hmac_drbg_context structure. + * \param output The buffer to fill. + * \param out_len The length of the buffer in bytes. + * This must be at most #MBEDTLS_HMAC_DRBG_MAX_REQUEST. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED + * if a call to the entropy source failed. + * \return #MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG if + * \p out_len > #MBEDTLS_HMAC_DRBG_MAX_REQUEST. + */ +int mbedtls_hmac_drbg_random(void *p_rng, unsigned char *output, size_t out_len); + +/** + * \brief This function resets HMAC_DRBG context to the state immediately + * after initial call of mbedtls_hmac_drbg_init(). + * + * \param ctx The HMAC_DRBG context to free. + */ +void mbedtls_hmac_drbg_free(mbedtls_hmac_drbg_context *ctx); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief This function writes a seed file. + * + * \param ctx The HMAC_DRBG context. + * \param path The name of the file. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR on file error. + * \return #MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED on reseed + * failure. + */ +int mbedtls_hmac_drbg_write_seed_file(mbedtls_hmac_drbg_context *ctx, const char *path); + +/** + * \brief This function reads and updates a seed file. The seed + * is added to this instance. + * + * \param ctx The HMAC_DRBG context. + * \param path The name of the file. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR on file error. + * \return #MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED on + * reseed failure. + * \return #MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG if the existing + * seed file is too large. + */ +int mbedtls_hmac_drbg_update_seed_file(mbedtls_hmac_drbg_context *ctx, const char *path); +#endif /* MBEDTLS_FS_IO */ + + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief The HMAC_DRBG Checkup routine. + * + * \return \c 0 if successful. + * \return \c 1 if the test failed. + */ +int mbedtls_hmac_drbg_self_test(int verbose); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* hmac_drbg.h */ diff --git a/include/mbedtls/lms.h b/include/mbedtls/lms.h new file mode 100644 index 0000000..95fce21 --- /dev/null +++ b/include/mbedtls/lms.h @@ -0,0 +1,440 @@ +/** + * \file lms.h + * + * \brief This file provides an API for the LMS post-quantum-safe stateful-hash + public-key signature scheme as defined in RFC8554 and NIST.SP.200-208. + * This implementation currently only supports a single parameter set + * MBEDTLS_LMS_SHA256_M32_H10 in order to reduce complexity. This is one + * of the signature schemes recommended by the IETF draft SUIT standard + * for IOT firmware upgrades (RFC9019). + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_LMS_H +#define MBEDTLS_LMS_H + +#include <stdint.h> +#include <stddef.h> + +#include "mbedtls/private_access.h" +#include "mbedtls/build_info.h" + +#define MBEDTLS_ERR_LMS_BAD_INPUT_DATA -0x0011 /**< Bad data has been input to an LMS function */ +#define MBEDTLS_ERR_LMS_OUT_OF_PRIVATE_KEYS -0x0013 /**< Specified LMS key has utilised all of its private keys */ +#define MBEDTLS_ERR_LMS_VERIFY_FAILED -0x0015 /**< LMS signature verification failed */ +#define MBEDTLS_ERR_LMS_ALLOC_FAILED -0x0017 /**< LMS failed to allocate space for a private key */ +#define MBEDTLS_ERR_LMS_BUFFER_TOO_SMALL -0x0019 /**< Input/output buffer is too small to contain requited data */ + +/* Currently only defined for SHA256, 32 is the max hash output size */ +#define MBEDTLS_LMOTS_N_HASH_LEN_MAX (32u) +#define MBEDTLS_LMOTS_P_SIG_DIGIT_COUNT_MAX (34u) +#define MBEDTLS_LMOTS_N_HASH_LEN(type) ((type) == MBEDTLS_LMOTS_SHA256_N32_W8 ? 32u : 0) +#define MBEDTLS_LMOTS_I_KEY_ID_LEN (16u) +#define MBEDTLS_LMOTS_Q_LEAF_ID_LEN (4u) +#define MBEDTLS_LMOTS_TYPE_LEN (4u) +#define MBEDTLS_LMOTS_P_SIG_DIGIT_COUNT(type) ((type) == MBEDTLS_LMOTS_SHA256_N32_W8 ? 34u : 0) +#define MBEDTLS_LMOTS_C_RANDOM_VALUE_LEN(type) (MBEDTLS_LMOTS_N_HASH_LEN(type)) + +#define MBEDTLS_LMOTS_SIG_LEN(type) (MBEDTLS_LMOTS_TYPE_LEN + \ + MBEDTLS_LMOTS_C_RANDOM_VALUE_LEN(type) + \ + (MBEDTLS_LMOTS_P_SIG_DIGIT_COUNT(type) * \ + MBEDTLS_LMOTS_N_HASH_LEN(type))) + + +#define MBEDTLS_LMS_TYPE_LEN (4) +#define MBEDTLS_LMS_H_TREE_HEIGHT(type) ((type) == MBEDTLS_LMS_SHA256_M32_H10 ? 10u : 0) + +/* The length of a hash output, Currently only implemented for SHA256. + * Max is 32 bytes. + */ +#define MBEDTLS_LMS_M_NODE_BYTES(type) ((type) == MBEDTLS_LMS_SHA256_M32_H10 ? 32 : 0) +#define MBEDTLS_LMS_M_NODE_BYTES_MAX 32 + +#define MBEDTLS_LMS_SIG_LEN(type, otstype) (MBEDTLS_LMOTS_Q_LEAF_ID_LEN + \ + MBEDTLS_LMOTS_SIG_LEN(otstype) + \ + MBEDTLS_LMS_TYPE_LEN + \ + (MBEDTLS_LMS_H_TREE_HEIGHT(type) * \ + MBEDTLS_LMS_M_NODE_BYTES(type))) + +#define MBEDTLS_LMS_PUBLIC_KEY_LEN(type) (MBEDTLS_LMS_TYPE_LEN + \ + MBEDTLS_LMOTS_TYPE_LEN + \ + MBEDTLS_LMOTS_I_KEY_ID_LEN + \ + MBEDTLS_LMS_M_NODE_BYTES(type)) + + +#ifdef __cplusplus +extern "C" { +#endif + +/** The Identifier of the LMS parameter set, as per + * https://www.iana.org/assignments/leighton-micali-signatures/leighton-micali-signatures.xhtml + * We are only implementing a subset of the types, particularly H10, for the sake of simplicity. + */ +typedef enum { + MBEDTLS_LMS_SHA256_M32_H10 = 0x6, +} mbedtls_lms_algorithm_type_t; + +/** The Identifier of the LMOTS parameter set, as per + * https://www.iana.org/assignments/leighton-micali-signatures/leighton-micali-signatures.xhtml. + * We are only implementing a subset of the types, particularly N32_W8, for the sake of simplicity. + */ +typedef enum { + MBEDTLS_LMOTS_SHA256_N32_W8 = 4 +} mbedtls_lmots_algorithm_type_t; + +/** LMOTS parameters structure. + * + * This contains the metadata associated with an LMOTS key, detailing the + * algorithm type, the key ID, and the leaf identifier should be key be part of + * a LMS key. + */ +typedef struct { + unsigned char MBEDTLS_PRIVATE(I_key_identifier[MBEDTLS_LMOTS_I_KEY_ID_LEN]); /*!< The key + identifier. */ + unsigned char MBEDTLS_PRIVATE(q_leaf_identifier[MBEDTLS_LMOTS_Q_LEAF_ID_LEN]); /*!< Which + leaf of the LMS key this is. + 0 if the key is not part of an LMS key. */ + mbedtls_lmots_algorithm_type_t MBEDTLS_PRIVATE(type); /*!< The LM-OTS key type identifier as + per IANA. Only SHA256_N32_W8 is + currently supported. */ +} mbedtls_lmots_parameters_t; + +/** LMOTS public context structure. + * + * A LMOTS public key is a hash output, and the applicable parameter set. + * + * The context must be initialized before it is used. A public key must either + * be imported or generated from a private context. + * + * \dot + * digraph lmots_public_t { + * UNINITIALIZED -> INIT [label="init"]; + * HAVE_PUBLIC_KEY -> INIT [label="free"]; + * INIT -> HAVE_PUBLIC_KEY [label="import_public_key"]; + * INIT -> HAVE_PUBLIC_KEY [label="calculate_public_key from private key"]; + * HAVE_PUBLIC_KEY -> HAVE_PUBLIC_KEY [label="export_public_key"]; + * } + * \enddot + */ +typedef struct { + mbedtls_lmots_parameters_t MBEDTLS_PRIVATE(params); + unsigned char MBEDTLS_PRIVATE(public_key)[MBEDTLS_LMOTS_N_HASH_LEN_MAX]; + unsigned char MBEDTLS_PRIVATE(have_public_key); /*!< Whether the context contains a public key. + Boolean values only. */ +} mbedtls_lmots_public_t; + +#if defined(MBEDTLS_LMS_PRIVATE) +/** LMOTS private context structure. + * + * A LMOTS private key is one hash output for each of digit of the digest + + * checksum, and the applicable parameter set. + * + * The context must be initialized before it is used. A public key must either + * be imported or generated from a private context. + * + * \dot + * digraph lmots_public_t { + * UNINITIALIZED -> INIT [label="init"]; + * HAVE_PRIVATE_KEY -> INIT [label="free"]; + * INIT -> HAVE_PRIVATE_KEY [label="generate_private_key"]; + * HAVE_PRIVATE_KEY -> INIT [label="sign"]; + * } + * \enddot + */ +typedef struct { + mbedtls_lmots_parameters_t MBEDTLS_PRIVATE(params); + unsigned char MBEDTLS_PRIVATE(private_key)[MBEDTLS_LMOTS_P_SIG_DIGIT_COUNT_MAX][ + MBEDTLS_LMOTS_N_HASH_LEN_MAX]; + unsigned char MBEDTLS_PRIVATE(have_private_key); /*!< Whether the context contains a private key. + Boolean values only. */ +} mbedtls_lmots_private_t; +#endif /* defined(MBEDTLS_LMS_PRIVATE) */ + + +/** LMS parameters structure. + * + * This contains the metadata associated with an LMS key, detailing the + * algorithm type, the type of the underlying OTS algorithm, and the key ID. + */ +typedef struct { + unsigned char MBEDTLS_PRIVATE(I_key_identifier[MBEDTLS_LMOTS_I_KEY_ID_LEN]); /*!< The key + identifier. */ + mbedtls_lmots_algorithm_type_t MBEDTLS_PRIVATE(otstype); /*!< The LM-OTS key type identifier as + per IANA. Only SHA256_N32_W8 is + currently supported. */ + mbedtls_lms_algorithm_type_t MBEDTLS_PRIVATE(type); /*!< The LMS key type identifier as per + IANA. Only SHA256_M32_H10 is currently + supported. */ +} mbedtls_lms_parameters_t; + +/** LMS public context structure. + * + * A LMS public key is the hash output that is the root of the Merkle tree, and + * the applicable parameter set + * + * The context must be initialized before it is used. A public key must either + * be imported or generated from a private context. + * + * \dot + * digraph lms_public_t { + * UNINITIALIZED -> INIT [label="init"]; + * HAVE_PUBLIC_KEY -> INIT [label="free"]; + * INIT -> HAVE_PUBLIC_KEY [label="import_public_key"]; + * INIT -> HAVE_PUBLIC_KEY [label="calculate_public_key from private key"]; + * HAVE_PUBLIC_KEY -> HAVE_PUBLIC_KEY [label="export_public_key"]; + * } + * \enddot + */ +typedef struct { + mbedtls_lms_parameters_t MBEDTLS_PRIVATE(params); + unsigned char MBEDTLS_PRIVATE(T_1_pub_key)[MBEDTLS_LMS_M_NODE_BYTES_MAX]; /*!< The public key, in + the form of the Merkle tree root node. */ + unsigned char MBEDTLS_PRIVATE(have_public_key); /*!< Whether the context contains a public key. + Boolean values only. */ +} mbedtls_lms_public_t; + + +#if defined(MBEDTLS_LMS_PRIVATE) +/** LMS private context structure. + * + * A LMS private key is a set of LMOTS private keys, an index to the next usable + * key, and the applicable parameter set. + * + * The context must be initialized before it is used. A public key must either + * be imported or generated from a private context. + * + * \dot + * digraph lms_public_t { + * UNINITIALIZED -> INIT [label="init"]; + * HAVE_PRIVATE_KEY -> INIT [label="free"]; + * INIT -> HAVE_PRIVATE_KEY [label="generate_private_key"]; + * } + * \enddot + */ +typedef struct { + mbedtls_lms_parameters_t MBEDTLS_PRIVATE(params); + uint32_t MBEDTLS_PRIVATE(q_next_usable_key); /*!< The index of the next OTS key that has not + been used. */ + mbedtls_lmots_private_t *MBEDTLS_PRIVATE(ots_private_keys); /*!< The private key material. One OTS key + for each leaf node in the Merkle tree. NULL + when have_private_key is 0 and non-NULL otherwise. + is 2^MBEDTLS_LMS_H_TREE_HEIGHT(type) in length. */ + mbedtls_lmots_public_t *MBEDTLS_PRIVATE(ots_public_keys); /*!< The OTS key public keys, used to + build the Merkle tree. NULL + when have_private_key is 0 and + non-NULL otherwise. + Is 2^MBEDTLS_LMS_H_TREE_HEIGHT(type) + in length. */ + unsigned char MBEDTLS_PRIVATE(have_private_key); /*!< Whether the context contains a private key. + Boolean values only. */ +} mbedtls_lms_private_t; +#endif /* defined(MBEDTLS_LMS_PRIVATE) */ + +/** + * \brief This function initializes an LMS public context + * + * \param ctx The uninitialized LMS context that will then be + * initialized. + */ +void mbedtls_lms_public_init(mbedtls_lms_public_t *ctx); + +/** + * \brief This function uninitializes an LMS public context + * + * \param ctx The initialized LMS context that will then be + * uninitialized. + */ +void mbedtls_lms_public_free(mbedtls_lms_public_t *ctx); + +/** + * \brief This function imports an LMS public key into a + * public LMS context. + * + * \note Before this function is called, the context must + * have been initialized. + * + * \note See IETF RFC8554 for details of the encoding of + * this public key. + * + * \param ctx The initialized LMS context store the key in. + * \param key The buffer from which the key will be read. + * #MBEDTLS_LMS_PUBLIC_KEY_LEN bytes will be read from + * this. + * \param key_size The size of the key being imported. + * + * \return \c 0 on success. + * \return A non-zero error code on failure. + */ +int mbedtls_lms_import_public_key(mbedtls_lms_public_t *ctx, + const unsigned char *key, size_t key_size); + +/** + * \brief This function exports an LMS public key from a + * LMS public context that already contains a public + * key. + * + * \note Before this function is called, the context must + * have been initialized and the context must contain + * a public key. + * + * \note See IETF RFC8554 for details of the encoding of + * this public key. + * + * \param ctx The initialized LMS public context that contains + * the public key. + * \param key The buffer into which the key will be output. Must + * be at least #MBEDTLS_LMS_PUBLIC_KEY_LEN in size. + * \param key_size The size of the key buffer. + * \param key_len If not NULL, will be written with the size of the + * key. + * + * \return \c 0 on success. + * \return A non-zero error code on failure. + */ +int mbedtls_lms_export_public_key(const mbedtls_lms_public_t *ctx, + unsigned char *key, size_t key_size, + size_t *key_len); + +/** + * \brief This function verifies a LMS signature, using a + * LMS context that contains a public key. + * + * \note Before this function is called, the context must + * have been initialized and must contain a public key + * (either by import or generation). + * + * \param ctx The initialized LMS public context from which the + * public key will be read. + * \param msg The buffer from which the message will be read. + * \param msg_size The size of the message that will be read. + * \param sig The buf from which the signature will be read. + * #MBEDTLS_LMS_SIG_LEN bytes will be read from + * this. + * \param sig_size The size of the signature to be verified. + * + * \return \c 0 on successful verification. + * \return A non-zero error code on failure. + */ +int mbedtls_lms_verify(const mbedtls_lms_public_t *ctx, + const unsigned char *msg, size_t msg_size, + const unsigned char *sig, size_t sig_size); + +#if defined(MBEDTLS_LMS_PRIVATE) +/** + * \brief This function initializes an LMS private context + * + * \param ctx The uninitialized LMS private context that will + * then be initialized. */ +void mbedtls_lms_private_init(mbedtls_lms_private_t *ctx); + +/** + * \brief This function uninitializes an LMS private context + * + * \param ctx The initialized LMS private context that will then + * be uninitialized. + */ +void mbedtls_lms_private_free(mbedtls_lms_private_t *ctx); + +/** + * \brief This function generates an LMS private key, and + * stores in into an LMS private context. + * + * \warning This function is **not intended for use in + * production**, due to as-yet unsolved problems with + * handling stateful keys. The API for this function + * may change considerably in future versions. + * + * \note The seed must have at least 256 bits of entropy. + * + * \param ctx The initialized LMOTS context to generate the key + * into. + * \param type The LMS parameter set identifier. + * \param otstype The LMOTS parameter set identifier. + * \param f_rng The RNG function to be used to generate the key ID. + * \param p_rng The RNG context to be passed to f_rng + * \param seed The seed used to deterministically generate the + * key. + * \param seed_size The length of the seed. + * + * \return \c 0 on success. + * \return A non-zero error code on failure. + */ +int mbedtls_lms_generate_private_key(mbedtls_lms_private_t *ctx, + mbedtls_lms_algorithm_type_t type, + mbedtls_lmots_algorithm_type_t otstype, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, const unsigned char *seed, + size_t seed_size); + +/** + * \brief This function calculates an LMS public key from a + * LMS context that already contains a private key. + * + * \note Before this function is called, the context must + * have been initialized and the context must contain + * a private key. + * + * \param ctx The initialized LMS public context to calculate the key + * from and store it into. + * + * \param priv_ctx The LMS private context to read the private key + * from. This must have been initialized and contain a + * private key. + * + * \return \c 0 on success. + * \return A non-zero error code on failure. + */ +int mbedtls_lms_calculate_public_key(mbedtls_lms_public_t *ctx, + const mbedtls_lms_private_t *priv_ctx); + +/** + * \brief This function creates a LMS signature, using a + * LMS context that contains unused private keys. + * + * \warning This function is **not intended for use in + * production**, due to as-yet unsolved problems with + * handling stateful keys. The API for this function + * may change considerably in future versions. + * + * \note Before this function is called, the context must + * have been initialized and must contain a private + * key. + * + * \note Each of the LMOTS private keys inside a LMS private + * key can only be used once. If they are reused, then + * attackers may be able to forge signatures with that + * key. This is all handled transparently, but it is + * important to not perform copy operations on LMS + * contexts that contain private key material. + * + * \param ctx The initialized LMS private context from which the + * private key will be read. + * \param f_rng The RNG function to be used for signature + * generation. + * \param p_rng The RNG context to be passed to f_rng + * \param msg The buffer from which the message will be read. + * \param msg_size The size of the message that will be read. + * \param sig The buf into which the signature will be stored. + * Must be at least #MBEDTLS_LMS_SIG_LEN in size. + * \param sig_size The size of the buffer the signature will be + * written into. + * \param sig_len If not NULL, will be written with the size of the + * signature. + * + * \return \c 0 on success. + * \return A non-zero error code on failure. + */ +int mbedtls_lms_sign(mbedtls_lms_private_t *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, const unsigned char *msg, + unsigned int msg_size, unsigned char *sig, size_t sig_size, + size_t *sig_len); +#endif /* defined(MBEDTLS_LMS_PRIVATE) */ + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_LMS_H */ diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h new file mode 100644 index 0000000..e1456b9 --- /dev/null +++ b/include/mbedtls/mbedtls_config.h @@ -0,0 +1,4116 @@ +/** + * \file mbedtls_config.h + * + * \brief Configuration options (set of defines) + * + * This set of compile-time options may be used to enable + * or disable features selectively, and reduce the global + * memory footprint. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +/** + * This is an optional version symbol that enables compatibility handling of + * config files. + * + * It is equal to the #MBEDTLS_VERSION_NUMBER of the Mbed TLS version that + * introduced the config format we want to be compatible with. + */ +//#define MBEDTLS_CONFIG_VERSION 0x03000000 + +/** + * \name SECTION: System support + * + * This section sets system specific settings. + * \{ + */ + +/** + * \def MBEDTLS_HAVE_ASM + * + * The compiler has support for asm(). + * + * Requires support for asm() in compiler. + * + * Used in: + * library/aesni.h + * library/aria.c + * library/bn_mul.h + * library/constant_time.c + * library/padlock.h + * + * Required by: + * MBEDTLS_AESCE_C + * MBEDTLS_AESNI_C (on some platforms) + * MBEDTLS_PADLOCK_C + * + * Comment to disable the use of assembly code. + */ +#define MBEDTLS_HAVE_ASM + +/** + * \def MBEDTLS_NO_UDBL_DIVISION + * + * The platform lacks support for double-width integer division (64-bit + * division on a 32-bit platform, 128-bit division on a 64-bit platform). + * + * Used in: + * include/mbedtls/bignum.h + * library/bignum.c + * + * The bignum code uses double-width division to speed up some operations. + * Double-width division is often implemented in software that needs to + * be linked with the program. The presence of a double-width integer + * type is usually detected automatically through preprocessor macros, + * but the automatic detection cannot know whether the code needs to + * and can be linked with an implementation of division for that type. + * By default division is assumed to be usable if the type is present. + * Uncomment this option to prevent the use of double-width division. + * + * Note that division for the native integer type is always required. + * Furthermore, a 64-bit type is always required even on a 32-bit + * platform, but it need not support multiplication or division. In some + * cases it is also desirable to disable some double-width operations. For + * example, if double-width division is implemented in software, disabling + * it can reduce code size in some embedded targets. + */ +//#define MBEDTLS_NO_UDBL_DIVISION + +/** + * \def MBEDTLS_NO_64BIT_MULTIPLICATION + * + * The platform lacks support for 32x32 -> 64-bit multiplication. + * + * Used in: + * library/poly1305.c + * + * Some parts of the library may use multiplication of two unsigned 32-bit + * operands with a 64-bit result in order to speed up computations. On some + * platforms, this is not available in hardware and has to be implemented in + * software, usually in a library provided by the toolchain. + * + * Sometimes it is not desirable to have to link to that library. This option + * removes the dependency of that library on platforms that lack a hardware + * 64-bit multiplier by embedding a software implementation in Mbed TLS. + * + * Note that depending on the compiler, this may decrease performance compared + * to using the library function provided by the toolchain. + */ +//#define MBEDTLS_NO_64BIT_MULTIPLICATION + +/** + * \def MBEDTLS_HAVE_SSE2 + * + * CPU supports SSE2 instruction set. + * + * Uncomment if the CPU supports SSE2 (IA-32 specific). + */ +//#define MBEDTLS_HAVE_SSE2 + +/** + * \def MBEDTLS_HAVE_TIME + * + * System has time.h and time(). + * The time does not need to be correct, only time differences are used, + * by contrast with MBEDTLS_HAVE_TIME_DATE + * + * Defining MBEDTLS_HAVE_TIME allows you to specify MBEDTLS_PLATFORM_TIME_ALT, + * MBEDTLS_PLATFORM_TIME_MACRO, MBEDTLS_PLATFORM_TIME_TYPE_MACRO and + * MBEDTLS_PLATFORM_STD_TIME. + * + * Comment if your system does not support time functions. + * + * \note If MBEDTLS_TIMING_C is set - to enable the semi-portable timing + * interface - timing.c will include time.h on suitable platforms + * regardless of the setting of MBEDTLS_HAVE_TIME, unless + * MBEDTLS_TIMING_ALT is used. See timing.c for more information. + */ +#define MBEDTLS_HAVE_TIME + +/** + * \def MBEDTLS_HAVE_TIME_DATE + * + * System has time.h, time(), and an implementation for + * mbedtls_platform_gmtime_r() (see below). + * The time needs to be correct (not necessarily very accurate, but at least + * the date should be correct). This is used to verify the validity period of + * X.509 certificates. + * + * Comment if your system does not have a correct clock. + * + * \note mbedtls_platform_gmtime_r() is an abstraction in platform_util.h that + * behaves similarly to the gmtime_r() function from the C standard. Refer to + * the documentation for mbedtls_platform_gmtime_r() for more information. + * + * \note It is possible to configure an implementation for + * mbedtls_platform_gmtime_r() at compile-time by using the macro + * MBEDTLS_PLATFORM_GMTIME_R_ALT. + */ +#define MBEDTLS_HAVE_TIME_DATE + +/** + * \def MBEDTLS_PLATFORM_MEMORY + * + * Enable the memory allocation layer. + * + * By default Mbed TLS uses the system-provided calloc() and free(). + * This allows different allocators (self-implemented or provided) to be + * provided to the platform abstraction layer. + * + * Enabling #MBEDTLS_PLATFORM_MEMORY without the + * MBEDTLS_PLATFORM_{FREE,CALLOC}_MACROs will provide + * "mbedtls_platform_set_calloc_free()" allowing you to set an alternative calloc() and + * free() function pointer at runtime. + * + * Enabling #MBEDTLS_PLATFORM_MEMORY and specifying + * MBEDTLS_PLATFORM_{CALLOC,FREE}_MACROs will allow you to specify the + * alternate function at compile time. + * + * An overview of how the value of mbedtls_calloc is determined: + * + * - if !MBEDTLS_PLATFORM_MEMORY + * - mbedtls_calloc = calloc + * - if MBEDTLS_PLATFORM_MEMORY + * - if (MBEDTLS_PLATFORM_CALLOC_MACRO && MBEDTLS_PLATFORM_FREE_MACRO): + * - mbedtls_calloc = MBEDTLS_PLATFORM_CALLOC_MACRO + * - if !(MBEDTLS_PLATFORM_CALLOC_MACRO && MBEDTLS_PLATFORM_FREE_MACRO): + * - Dynamic setup via mbedtls_platform_set_calloc_free is now possible with a default value MBEDTLS_PLATFORM_STD_CALLOC. + * - How is MBEDTLS_PLATFORM_STD_CALLOC handled? + * - if MBEDTLS_PLATFORM_NO_STD_FUNCTIONS: + * - MBEDTLS_PLATFORM_STD_CALLOC is not set to anything; + * - MBEDTLS_PLATFORM_STD_MEM_HDR can be included if present; + * - if !MBEDTLS_PLATFORM_NO_STD_FUNCTIONS: + * - if MBEDTLS_PLATFORM_STD_CALLOC is present: + * - User-defined MBEDTLS_PLATFORM_STD_CALLOC is respected; + * - if !MBEDTLS_PLATFORM_STD_CALLOC: + * - MBEDTLS_PLATFORM_STD_CALLOC = calloc + * + * - At this point the presence of MBEDTLS_PLATFORM_STD_CALLOC is checked. + * - if !MBEDTLS_PLATFORM_STD_CALLOC + * - MBEDTLS_PLATFORM_STD_CALLOC = uninitialized_calloc + * + * - mbedtls_calloc = MBEDTLS_PLATFORM_STD_CALLOC. + * + * Defining MBEDTLS_PLATFORM_CALLOC_MACRO and #MBEDTLS_PLATFORM_STD_CALLOC at the same time is not possible. + * MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_FREE_MACRO must both be defined or undefined at the same time. + * #MBEDTLS_PLATFORM_STD_CALLOC and #MBEDTLS_PLATFORM_STD_FREE do not have to be defined at the same time, as, if they are used, + * dynamic setup of these functions is possible. See the tree above to see how are they handled in all cases. + * An uninitialized #MBEDTLS_PLATFORM_STD_CALLOC always fails, returning a null pointer. + * An uninitialized #MBEDTLS_PLATFORM_STD_FREE does not do anything. + * + * Requires: MBEDTLS_PLATFORM_C + * + * Enable this layer to allow use of alternative memory allocators. + */ +//#define MBEDTLS_PLATFORM_MEMORY + +/** + * \def MBEDTLS_PLATFORM_NO_STD_FUNCTIONS + * + * Do not assign standard functions in the platform layer (e.g. calloc() to + * MBEDTLS_PLATFORM_STD_CALLOC and printf() to MBEDTLS_PLATFORM_STD_PRINTF) + * + * This makes sure there are no linking errors on platforms that do not support + * these functions. You will HAVE to provide alternatives, either at runtime + * via the platform_set_xxx() functions or at compile time by setting + * the MBEDTLS_PLATFORM_STD_XXX defines, or enabling a + * MBEDTLS_PLATFORM_XXX_MACRO. + * + * Requires: MBEDTLS_PLATFORM_C + * + * Uncomment to prevent default assignment of standard functions in the + * platform layer. + */ +//#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS + +/** + * \def MBEDTLS_PLATFORM_EXIT_ALT + * + * MBEDTLS_PLATFORM_XXX_ALT: Uncomment a macro to let Mbed TLS support the + * function in the platform abstraction layer. + * + * Example: In case you uncomment MBEDTLS_PLATFORM_PRINTF_ALT, Mbed TLS will + * provide a function "mbedtls_platform_set_printf()" that allows you to set an + * alternative printf function pointer. + * + * All these define require MBEDTLS_PLATFORM_C to be defined! + * + * \note MBEDTLS_PLATFORM_SNPRINTF_ALT is required on Windows; + * it will be enabled automatically by check_config.h + * + * \warning MBEDTLS_PLATFORM_XXX_ALT cannot be defined at the same time as + * MBEDTLS_PLATFORM_XXX_MACRO! + * + * Requires: MBEDTLS_PLATFORM_TIME_ALT requires MBEDTLS_HAVE_TIME + * + * Uncomment a macro to enable alternate implementation of specific base + * platform function + */ +//#define MBEDTLS_PLATFORM_SETBUF_ALT +//#define MBEDTLS_PLATFORM_EXIT_ALT +//#define MBEDTLS_PLATFORM_TIME_ALT +//#define MBEDTLS_PLATFORM_FPRINTF_ALT +//#define MBEDTLS_PLATFORM_PRINTF_ALT +//#define MBEDTLS_PLATFORM_SNPRINTF_ALT +//#define MBEDTLS_PLATFORM_VSNPRINTF_ALT +//#define MBEDTLS_PLATFORM_NV_SEED_ALT +//#define MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT +//#define MBEDTLS_PLATFORM_MS_TIME_ALT + +/** + * Uncomment the macro to let Mbed TLS use your alternate implementation of + * mbedtls_platform_gmtime_r(). This replaces the default implementation in + * platform_util.c. + * + * gmtime() is not a thread-safe function as defined in the C standard. The + * library will try to use safer implementations of this function, such as + * gmtime_r() when available. However, if Mbed TLS cannot identify the target + * system, the implementation of mbedtls_platform_gmtime_r() will default to + * using the standard gmtime(). In this case, calls from the library to + * gmtime() will be guarded by the global mutex mbedtls_threading_gmtime_mutex + * if MBEDTLS_THREADING_C is enabled. We recommend that calls from outside the + * library are also guarded with this mutex to avoid race conditions. However, + * if the macro MBEDTLS_PLATFORM_GMTIME_R_ALT is defined, Mbed TLS will + * unconditionally use the implementation for mbedtls_platform_gmtime_r() + * supplied at compile time. + */ +//#define MBEDTLS_PLATFORM_GMTIME_R_ALT + +/** + * Uncomment the macro to let Mbed TLS use your alternate implementation of + * mbedtls_platform_zeroize(), to wipe sensitive data in memory. This replaces + * the default implementation in platform_util.c. + * + * By default, the library uses a system function such as memset_s() + * (optional feature of C11), explicit_bzero() (BSD and compatible), or + * SecureZeroMemory (Windows). If no such function is detected, the library + * falls back to a plain C implementation. Compilers are technically + * permitted to optimize this implementation out, meaning that the memory is + * not actually wiped. The library tries to prevent that, but the C language + * makes it impossible to guarantee that the memory will always be wiped. + * + * If your platform provides a guaranteed method to wipe memory which + * `platform_util.c` does not detect, define this macro to the name of + * a function that takes two arguments, a `void *` pointer and a length, + * and wipes that many bytes starting at the specified address. For example, + * if your platform has explicit_bzero() but `platform_util.c` does not + * detect its presence, define `MBEDTLS_PLATFORM_ZEROIZE_ALT` to be + * `explicit_bzero` to use that function as mbedtls_platform_zeroize(). + */ +//#define MBEDTLS_PLATFORM_ZEROIZE_ALT + +/** + * \def MBEDTLS_DEPRECATED_WARNING + * + * Mark deprecated functions and features so that they generate a warning if + * used. Functionality deprecated in one version will usually be removed in the + * next version. You can enable this to help you prepare the transition to a + * new major version by making sure your code is not using this functionality. + * + * This only works with GCC and Clang. With other compilers, you may want to + * use MBEDTLS_DEPRECATED_REMOVED + * + * Uncomment to get warnings on using deprecated functions and features. + */ +//#define MBEDTLS_DEPRECATED_WARNING + +/** + * \def MBEDTLS_DEPRECATED_REMOVED + * + * Remove deprecated functions and features so that they generate an error if + * used. Functionality deprecated in one version will usually be removed in the + * next version. You can enable this to help you prepare the transition to a + * new major version by making sure your code is not using this functionality. + * + * Uncomment to get errors on using deprecated functions and features. + */ +//#define MBEDTLS_DEPRECATED_REMOVED + +/** \} name SECTION: System support */ + +/** + * \name SECTION: Mbed TLS feature support + * + * This section sets support for features that are or are not needed + * within the modules that are enabled. + * \{ + */ + +/** + * \def MBEDTLS_TIMING_ALT + * + * Uncomment to provide your own alternate implementation for + * mbedtls_timing_get_timer(), mbedtls_set_alarm(), mbedtls_set/get_delay() + * + * Only works if you have MBEDTLS_TIMING_C enabled. + * + * You will need to provide a header "timing_alt.h" and an implementation at + * compile time. + */ +//#define MBEDTLS_TIMING_ALT + +/** + * \def MBEDTLS_AES_ALT + * + * MBEDTLS__MODULE_NAME__ALT: Uncomment a macro to let Mbed TLS use your + * alternate core implementation of a symmetric crypto, an arithmetic or hash + * module (e.g. platform specific assembly optimized implementations). Keep + * in mind that the function prototypes should remain the same. + * + * This replaces the whole module. If you only want to replace one of the + * functions, use one of the MBEDTLS__FUNCTION_NAME__ALT flags. + * + * Example: In case you uncomment MBEDTLS_AES_ALT, Mbed TLS will no longer + * provide the "struct mbedtls_aes_context" definition and omit the base + * function declarations and implementations. "aes_alt.h" will be included from + * "aes.h" to include the new function definitions. + * + * Uncomment a macro to enable alternate implementation of the corresponding + * module. + * + * \warning MD5, DES and SHA-1 are considered weak and their + * use constitutes a security risk. If possible, we recommend + * avoiding dependencies on them, and considering stronger message + * digests and ciphers instead. + * + */ +//#define MBEDTLS_AES_ALT +//#define MBEDTLS_ARIA_ALT +//#define MBEDTLS_CAMELLIA_ALT +//#define MBEDTLS_CCM_ALT +//#define MBEDTLS_CHACHA20_ALT +//#define MBEDTLS_CHACHAPOLY_ALT +//#define MBEDTLS_CMAC_ALT +//#define MBEDTLS_DES_ALT +//#define MBEDTLS_DHM_ALT +//#define MBEDTLS_ECJPAKE_ALT +//#define MBEDTLS_GCM_ALT +//#define MBEDTLS_NIST_KW_ALT +//#define MBEDTLS_MD5_ALT +//#define MBEDTLS_POLY1305_ALT +//#define MBEDTLS_RIPEMD160_ALT +//#define MBEDTLS_RSA_ALT +//#define MBEDTLS_SHA1_ALT +//#define MBEDTLS_SHA256_ALT +//#define MBEDTLS_SHA512_ALT + +/* + * When replacing the elliptic curve module, please consider, that it is + * implemented with two .c files: + * - ecp.c + * - ecp_curves.c + * You can replace them very much like all the other MBEDTLS__MODULE_NAME__ALT + * macros as described above. The only difference is that you have to make sure + * that you provide functionality for both .c files. + */ +//#define MBEDTLS_ECP_ALT + +/** + * \def MBEDTLS_SHA256_PROCESS_ALT + * + * MBEDTLS__FUNCTION_NAME__ALT: Uncomment a macro to let Mbed TLS use you + * alternate core implementation of symmetric crypto or hash function. Keep in + * mind that function prototypes should remain the same. + * + * This replaces only one function. The header file from Mbed TLS is still + * used, in contrast to the MBEDTLS__MODULE_NAME__ALT flags. + * + * Example: In case you uncomment MBEDTLS_SHA256_PROCESS_ALT, Mbed TLS will + * no longer provide the mbedtls_sha1_process() function, but it will still provide + * the other function (using your mbedtls_sha1_process() function) and the definition + * of mbedtls_sha1_context, so your implementation of mbedtls_sha1_process must be compatible + * with this definition. + * + * \note If you use the AES_xxx_ALT macros, then it is recommended to also set + * MBEDTLS_AES_ROM_TABLES in order to help the linker garbage-collect the AES + * tables. + * + * Uncomment a macro to enable alternate implementation of the corresponding + * function. + * + * \warning MD5, DES and SHA-1 are considered weak and their use + * constitutes a security risk. If possible, we recommend avoiding + * dependencies on them, and considering stronger message digests + * and ciphers instead. + * + * \warning If both MBEDTLS_ECDSA_SIGN_ALT and MBEDTLS_ECDSA_DETERMINISTIC are + * enabled, then the deterministic ECDH signature functions pass the + * the static HMAC-DRBG as RNG to mbedtls_ecdsa_sign(). Therefore + * alternative implementations should use the RNG only for generating + * the ephemeral key and nothing else. If this is not possible, then + * MBEDTLS_ECDSA_DETERMINISTIC should be disabled and an alternative + * implementation should be provided for mbedtls_ecdsa_sign_det_ext(). + * + */ +//#define MBEDTLS_MD5_PROCESS_ALT +//#define MBEDTLS_RIPEMD160_PROCESS_ALT +//#define MBEDTLS_SHA1_PROCESS_ALT +//#define MBEDTLS_SHA256_PROCESS_ALT +//#define MBEDTLS_SHA512_PROCESS_ALT +//#define MBEDTLS_DES_SETKEY_ALT +//#define MBEDTLS_DES_CRYPT_ECB_ALT +//#define MBEDTLS_DES3_CRYPT_ECB_ALT +//#define MBEDTLS_AES_SETKEY_ENC_ALT +//#define MBEDTLS_AES_SETKEY_DEC_ALT +//#define MBEDTLS_AES_ENCRYPT_ALT +//#define MBEDTLS_AES_DECRYPT_ALT +//#define MBEDTLS_ECDH_GEN_PUBLIC_ALT +//#define MBEDTLS_ECDH_COMPUTE_SHARED_ALT +//#define MBEDTLS_ECDSA_VERIFY_ALT +//#define MBEDTLS_ECDSA_SIGN_ALT +//#define MBEDTLS_ECDSA_GENKEY_ALT + +/** + * \def MBEDTLS_ECP_INTERNAL_ALT + * + * Expose a part of the internal interface of the Elliptic Curve Point module. + * + * MBEDTLS_ECP__FUNCTION_NAME__ALT: Uncomment a macro to let Mbed TLS use your + * alternative core implementation of elliptic curve arithmetic. Keep in mind + * that function prototypes should remain the same. + * + * This partially replaces one function. The header file from Mbed TLS is still + * used, in contrast to the MBEDTLS_ECP_ALT flag. The original implementation + * is still present and it is used for group structures not supported by the + * alternative. + * + * The original implementation can in addition be removed by setting the + * MBEDTLS_ECP_NO_FALLBACK option, in which case any function for which the + * corresponding MBEDTLS_ECP__FUNCTION_NAME__ALT macro is defined will not be + * able to fallback to curves not supported by the alternative implementation. + * + * Any of these options become available by defining MBEDTLS_ECP_INTERNAL_ALT + * and implementing the following functions: + * unsigned char mbedtls_internal_ecp_grp_capable( + * const mbedtls_ecp_group *grp ) + * int mbedtls_internal_ecp_init( const mbedtls_ecp_group *grp ) + * void mbedtls_internal_ecp_free( const mbedtls_ecp_group *grp ) + * The mbedtls_internal_ecp_grp_capable function should return 1 if the + * replacement functions implement arithmetic for the given group and 0 + * otherwise. + * The functions mbedtls_internal_ecp_init and mbedtls_internal_ecp_free are + * called before and after each point operation and provide an opportunity to + * implement optimized set up and tear down instructions. + * + * Example: In case you set MBEDTLS_ECP_INTERNAL_ALT and + * MBEDTLS_ECP_DOUBLE_JAC_ALT, Mbed TLS will still provide the ecp_double_jac() + * function, but will use your mbedtls_internal_ecp_double_jac() if the group + * for the operation is supported by your implementation (i.e. your + * mbedtls_internal_ecp_grp_capable() function returns 1 for this group). If the + * group is not supported by your implementation, then the original Mbed TLS + * implementation of ecp_double_jac() is used instead, unless this fallback + * behaviour is disabled by setting MBEDTLS_ECP_NO_FALLBACK (in which case + * ecp_double_jac() will return MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE). + * + * The function prototypes and the definition of mbedtls_ecp_group and + * mbedtls_ecp_point will not change based on MBEDTLS_ECP_INTERNAL_ALT, so your + * implementation of mbedtls_internal_ecp__function_name__ must be compatible + * with their definitions. + * + * Uncomment a macro to enable alternate implementation of the corresponding + * function. + */ +/* Required for all the functions in this section */ +//#define MBEDTLS_ECP_INTERNAL_ALT +/* Turn off software fallback for curves not supported in hardware */ +//#define MBEDTLS_ECP_NO_FALLBACK +/* Support for Weierstrass curves with Jacobi representation */ +//#define MBEDTLS_ECP_RANDOMIZE_JAC_ALT +//#define MBEDTLS_ECP_ADD_MIXED_ALT +//#define MBEDTLS_ECP_DOUBLE_JAC_ALT +//#define MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT +//#define MBEDTLS_ECP_NORMALIZE_JAC_ALT +/* Support for curves with Montgomery arithmetic */ +//#define MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT +//#define MBEDTLS_ECP_RANDOMIZE_MXZ_ALT +//#define MBEDTLS_ECP_NORMALIZE_MXZ_ALT + +/** + * \def MBEDTLS_ENTROPY_HARDWARE_ALT + * + * Uncomment this macro to let Mbed TLS use your own implementation of a + * hardware entropy collector. + * + * Your function must be called \c mbedtls_hardware_poll(), have the same + * prototype as declared in library/entropy_poll.h, and accept NULL as first + * argument. + * + * Uncomment to use your own hardware entropy collector. + */ +//#define MBEDTLS_ENTROPY_HARDWARE_ALT + +/** + * \def MBEDTLS_AES_ROM_TABLES + * + * Use precomputed AES tables stored in ROM. + * + * Uncomment this macro to use precomputed AES tables stored in ROM. + * Comment this macro to generate AES tables in RAM at runtime. + * + * Tradeoff: Using precomputed ROM tables reduces RAM usage by ~8kb + * (or ~2kb if \c MBEDTLS_AES_FEWER_TABLES is used) and reduces the + * initialization time before the first AES operation can be performed. + * It comes at the cost of additional ~8kb ROM use (resp. ~2kb if \c + * MBEDTLS_AES_FEWER_TABLES below is used), and potentially degraded + * performance if ROM access is slower than RAM access. + * + * This option is independent of \c MBEDTLS_AES_FEWER_TABLES. + */ +//#define MBEDTLS_AES_ROM_TABLES + +/** + * \def MBEDTLS_AES_FEWER_TABLES + * + * Use less ROM/RAM for AES tables. + * + * Uncommenting this macro omits 75% of the AES tables from + * ROM / RAM (depending on the value of \c MBEDTLS_AES_ROM_TABLES) + * by computing their values on the fly during operations + * (the tables are entry-wise rotations of one another). + * + * Tradeoff: Uncommenting this reduces the RAM / ROM footprint + * by ~6kb but at the cost of more arithmetic operations during + * runtime. Specifically, one has to compare 4 accesses within + * different tables to 4 accesses with additional arithmetic + * operations within the same table. The performance gain/loss + * depends on the system and memory details. + * + * This option is independent of \c MBEDTLS_AES_ROM_TABLES. + */ +//#define MBEDTLS_AES_FEWER_TABLES + +/** + * \def MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH + * + * Use only 128-bit keys in AES operations to save ROM. + * + * Uncomment this macro to remove support for AES operations that use 192- + * or 256-bit keys. + * + * Uncommenting this macro reduces the size of AES code by ~300 bytes + * on v8-M/Thumb2. + * + * Module: library/aes.c + * + * Requires: MBEDTLS_AES_C + */ +//#define MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH + +/* + * Disable plain C implementation for AES. + * + * When the plain C implementation is enabled, and an implementation using a + * special CPU feature (such as MBEDTLS_AESCE_C) is also enabled, runtime + * detection will be used to select between them. + * + * If only one implementation is present, runtime detection will not be used. + * This configuration will crash at runtime if running on a CPU without the + * necessary features. It will not build unless at least one of MBEDTLS_AESCE_C + * and/or MBEDTLS_AESNI_C is enabled & present in the build. + */ +//#define MBEDTLS_AES_USE_HARDWARE_ONLY + +/** + * \def MBEDTLS_CAMELLIA_SMALL_MEMORY + * + * Use less ROM for the Camellia implementation (saves about 768 bytes). + * + * Uncomment this macro to use less memory for Camellia. + */ +//#define MBEDTLS_CAMELLIA_SMALL_MEMORY + +/** + * \def MBEDTLS_CHECK_RETURN_WARNING + * + * If this macro is defined, emit a compile-time warning if application code + * calls a function without checking its return value, but the return value + * should generally be checked in portable applications. + * + * This is only supported on platforms where #MBEDTLS_CHECK_RETURN is + * implemented. Otherwise this option has no effect. + * + * Uncomment to get warnings on using fallible functions without checking + * their return value. + * + * \note This feature is a work in progress. + * Warnings will be added to more functions in the future. + * + * \note A few functions are considered critical, and ignoring the return + * value of these functions will trigger a warning even if this + * macro is not defined. To completely disable return value check + * warnings, define #MBEDTLS_CHECK_RETURN with an empty expansion. + */ +//#define MBEDTLS_CHECK_RETURN_WARNING + +/** + * \def MBEDTLS_CIPHER_MODE_CBC + * + * Enable Cipher Block Chaining mode (CBC) for symmetric ciphers. + */ +#define MBEDTLS_CIPHER_MODE_CBC + +/** + * \def MBEDTLS_CIPHER_MODE_CFB + * + * Enable Cipher Feedback mode (CFB) for symmetric ciphers. + */ +#define MBEDTLS_CIPHER_MODE_CFB + +/** + * \def MBEDTLS_CIPHER_MODE_CTR + * + * Enable Counter Block Cipher mode (CTR) for symmetric ciphers. + */ +#define MBEDTLS_CIPHER_MODE_CTR + +/** + * \def MBEDTLS_CIPHER_MODE_OFB + * + * Enable Output Feedback mode (OFB) for symmetric ciphers. + */ +#define MBEDTLS_CIPHER_MODE_OFB + +/** + * \def MBEDTLS_CIPHER_MODE_XTS + * + * Enable Xor-encrypt-xor with ciphertext stealing mode (XTS) for AES. + */ +#define MBEDTLS_CIPHER_MODE_XTS + +/** + * \def MBEDTLS_CIPHER_NULL_CIPHER + * + * Enable NULL cipher. + * Warning: Only do so when you know what you are doing. This allows for + * encryption or channels without any security! + * + * To enable the following ciphersuites: + * MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA + * MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA + * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384 + * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256 + * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA + * MBEDTLS_TLS_RSA_WITH_NULL_SHA256 + * MBEDTLS_TLS_RSA_WITH_NULL_SHA + * MBEDTLS_TLS_RSA_WITH_NULL_MD5 + * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA + * MBEDTLS_TLS_PSK_WITH_NULL_SHA384 + * MBEDTLS_TLS_PSK_WITH_NULL_SHA256 + * MBEDTLS_TLS_PSK_WITH_NULL_SHA + * + * Uncomment this macro to enable the NULL cipher and ciphersuites + */ +//#define MBEDTLS_CIPHER_NULL_CIPHER + +/** + * \def MBEDTLS_CIPHER_PADDING_PKCS7 + * + * MBEDTLS_CIPHER_PADDING_XXX: Uncomment or comment macros to add support for + * specific padding modes in the cipher layer with cipher modes that support + * padding (e.g. CBC) + * + * If you disable all padding modes, only full blocks can be used with CBC. + * + * Enable padding modes in the cipher layer. + */ +#define MBEDTLS_CIPHER_PADDING_PKCS7 +#define MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS +#define MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN +#define MBEDTLS_CIPHER_PADDING_ZEROS + +/** \def MBEDTLS_CTR_DRBG_USE_128_BIT_KEY + * + * Uncomment this macro to use a 128-bit key in the CTR_DRBG module. + * Without this, CTR_DRBG uses a 256-bit key + * unless \c MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH is set. + */ +//#define MBEDTLS_CTR_DRBG_USE_128_BIT_KEY + +/** + * Enable the verified implementations of ECDH primitives from Project Everest + * (currently only Curve25519). This feature changes the layout of ECDH + * contexts and therefore is a compatibility break for applications that access + * fields of a mbedtls_ecdh_context structure directly. See also + * MBEDTLS_ECDH_LEGACY_CONTEXT in include/mbedtls/ecdh.h. + * + * The Everest code is provided under the Apache 2.0 license only; therefore enabling this + * option is not compatible with taking the library under the GPL v2.0-or-later license. + */ +//#define MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED + +/** + * \def MBEDTLS_ECP_DP_SECP192R1_ENABLED + * + * MBEDTLS_ECP_XXXX_ENABLED: Enables specific curves within the Elliptic Curve + * module. By default all supported curves are enabled. + * + * Comment macros to disable the curve and functions for it + */ +/* Short Weierstrass curves (supporting ECP, ECDH, ECDSA) */ +#define MBEDTLS_ECP_DP_SECP192R1_ENABLED +#define MBEDTLS_ECP_DP_SECP224R1_ENABLED +#define MBEDTLS_ECP_DP_SECP256R1_ENABLED +#define MBEDTLS_ECP_DP_SECP384R1_ENABLED +#define MBEDTLS_ECP_DP_SECP521R1_ENABLED +#define MBEDTLS_ECP_DP_SECP192K1_ENABLED +#define MBEDTLS_ECP_DP_SECP224K1_ENABLED +#define MBEDTLS_ECP_DP_SECP256K1_ENABLED +#define MBEDTLS_ECP_DP_BP256R1_ENABLED +#define MBEDTLS_ECP_DP_BP384R1_ENABLED +#define MBEDTLS_ECP_DP_BP512R1_ENABLED +/* Montgomery curves (supporting ECP) */ +#define MBEDTLS_ECP_DP_CURVE25519_ENABLED +#define MBEDTLS_ECP_DP_CURVE448_ENABLED + +/** + * \def MBEDTLS_ECP_NIST_OPTIM + * + * Enable specific 'modulo p' routines for each NIST prime. + * Depending on the prime and architecture, makes operations 4 to 8 times + * faster on the corresponding curve. + * + * Comment this macro to disable NIST curves optimisation. + */ +#define MBEDTLS_ECP_NIST_OPTIM + +/** + * \def MBEDTLS_ECP_RESTARTABLE + * + * Enable "non-blocking" ECC operations that can return early and be resumed. + * + * This allows various functions to pause by returning + * #MBEDTLS_ERR_ECP_IN_PROGRESS (or, for functions in the SSL module, + * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) and then be called later again in + * order to further progress and eventually complete their operation. This is + * controlled through mbedtls_ecp_set_max_ops() which limits the maximum + * number of ECC operations a function may perform before pausing; see + * mbedtls_ecp_set_max_ops() for more information. + * + * This is useful in non-threaded environments if you want to avoid blocking + * for too long on ECC (and, hence, X.509 or SSL/TLS) operations. + * + * This option: + * - Adds xxx_restartable() variants of existing operations in the + * following modules, with corresponding restart context types: + * - ECP (for Short Weierstrass curves only): scalar multiplication (mul), + * linear combination (muladd); + * - ECDSA: signature generation & verification; + * - PK: signature generation & verification; + * - X509: certificate chain verification. + * - Adds mbedtls_ecdh_enable_restart() in the ECDH module. + * - Changes the behaviour of TLS 1.2 clients (not servers) when using the + * ECDHE-ECDSA key exchange (not other key exchanges) to make all ECC + * computations restartable: + * - ECDH operations from the key exchange, only for Short Weierstrass + * curves, only when MBEDTLS_USE_PSA_CRYPTO is not enabled. + * - verification of the server's key exchange signature; + * - verification of the server's certificate chain; + * - generation of the client's signature if client authentication is used, + * with an ECC key/certificate. + * + * \note In the cases above, the usual SSL/TLS functions, such as + * mbedtls_ssl_handshake(), can now return + * MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS. + * + * \note When this option and MBEDTLS_USE_PSA_CRYPTO are both enabled, + * restartable operations in PK, X.509 and TLS (see above) are not + * using PSA. On the other hand, ECDH computations in TLS are using + * PSA, and are not restartable. These are temporary limitations that + * should be lifted in the future. + * + * \note This option only works with the default software implementation of + * elliptic curve functionality. It is incompatible with + * MBEDTLS_ECP_ALT, MBEDTLS_ECDH_XXX_ALT, MBEDTLS_ECDSA_XXX_ALT. + * + * Requires: MBEDTLS_ECP_C + * + * Uncomment this macro to enable restartable ECC computations. + */ +//#define MBEDTLS_ECP_RESTARTABLE + +/** + * Uncomment to enable using new bignum code in the ECC modules. + * + * \warning This is currently experimental, incomplete and therefore should not + * be used in production. + */ +//#define MBEDTLS_ECP_WITH_MPI_UINT + +/** + * \def MBEDTLS_ECDSA_DETERMINISTIC + * + * Enable deterministic ECDSA (RFC 6979). + * Standard ECDSA is "fragile" in the sense that lack of entropy when signing + * may result in a compromise of the long-term signing key. This is avoided by + * the deterministic variant. + * + * Requires: MBEDTLS_HMAC_DRBG_C, MBEDTLS_ECDSA_C + * + * Comment this macro to disable deterministic ECDSA. + */ +#define MBEDTLS_ECDSA_DETERMINISTIC + +/** + * \def MBEDTLS_KEY_EXCHANGE_PSK_ENABLED + * + * Enable the PSK based ciphersuite modes in SSL / TLS. + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 + */ +#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED + * + * Enable the DHE-PSK based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_DHM_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 + * + * \warning Using DHE constitutes a security risk as it + * is not possible to validate custom DH parameters. + * If possible, it is recommended users should consider + * preferring other methods of key exchange. + * See dhm.h for more details. + * + */ +#define MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED + * + * Enable the ECDHE-PSK based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_ECDH_C or (MBEDTLS_USE_PSA_CRYPTO and PSA_WANT_ALG_ECDH) + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 + */ +#define MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED + * + * Enable the RSA-PSK based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, + * MBEDTLS_X509_CRT_PARSE_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 + */ +#define MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_RSA_ENABLED + * + * Enable the RSA-only based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, + * MBEDTLS_X509_CRT_PARSE_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA + */ +#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED + * + * Enable the DHE-RSA based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_DHM_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, + * MBEDTLS_X509_CRT_PARSE_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA + * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA + * + * \warning Using DHE constitutes a security risk as it + * is not possible to validate custom DH parameters. + * If possible, it is recommended users should consider + * preferring other methods of key exchange. + * See dhm.h for more details. + * + */ +#define MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED + * + * Enable the ECDHE-RSA based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_ECDH_C or (MBEDTLS_USE_PSA_CRYPTO and PSA_WANT_ALG_ECDH) + * MBEDTLS_RSA_C + * MBEDTLS_PKCS1_V15 + * MBEDTLS_X509_CRT_PARSE_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 + */ +#define MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED + * + * Enable the ECDHE-ECDSA based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_ECDH_C or (MBEDTLS_USE_PSA_CRYPTO and PSA_WANT_ALG_ECDH) + * MBEDTLS_ECDSA_C or (MBEDTLS_USE_PSA_CRYPTO and PSA_WANT_ALG_ECDSA) + * MBEDTLS_X509_CRT_PARSE_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 + */ +#define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED + * + * Enable the ECDH-ECDSA based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_ECDH_C or (MBEDTLS_USE_PSA_CRYPTO and PSA_WANT_ALG_ECDH) + * MBEDTLS_ECDSA_C or (MBEDTLS_USE_PSA_CRYPTO and PSA_WANT_ALG_ECDSA) + * MBEDTLS_X509_CRT_PARSE_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 + */ +#define MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED + * + * Enable the ECDH-RSA based ciphersuite modes in SSL / TLS. + * + * Requires: MBEDTLS_ECDH_C or (MBEDTLS_USE_PSA_CRYPTO and PSA_WANT_ALG_ECDH) + * MBEDTLS_RSA_C + * MBEDTLS_X509_CRT_PARSE_C + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 + */ +#define MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED + +/** + * \def MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED + * + * Enable the ECJPAKE based ciphersuite modes in SSL / TLS. + * + * \warning This is currently experimental. EC J-PAKE support is based on the + * Thread v1.0.0 specification; incompatible changes to the specification + * might still happen. For this reason, this is disabled by default. + * + * Requires: MBEDTLS_ECJPAKE_C or (MBEDTLS_USE_PSA_CRYPTO and PSA_WANT_ALG_JPAKE) + * SHA-256 (via MBEDTLS_SHA256_C or a PSA driver) + * MBEDTLS_ECP_DP_SECP256R1_ENABLED + * + * \warning If SHA-256 is provided only by a PSA driver, you must call + * psa_crypto_init() before the first hanshake (even if + * MBEDTLS_USE_PSA_CRYPTO is disabled). + * + * This enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8 + */ +//#define MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED + +/** + * \def MBEDTLS_PK_PARSE_EC_EXTENDED + * + * Enhance support for reading EC keys using variants of SEC1 not allowed by + * RFC 5915 and RFC 5480. + * + * Currently this means parsing the SpecifiedECDomain choice of EC + * parameters (only known groups are supported, not arbitrary domains, to + * avoid validation issues). + * + * Disable if you only need to support RFC 5915 + 5480 key formats. + */ +#define MBEDTLS_PK_PARSE_EC_EXTENDED + +/** + * \def MBEDTLS_PK_PARSE_EC_COMPRESSED + * + * Enable the support for parsing public keys of type Short Weierstrass + * (MBEDTLS_ECP_DP_SECP_XXX and MBEDTLS_ECP_DP_BP_XXX) which are using the + * compressed point format. This parsing is done through ECP module's functions. + * + * \note As explained in the description of MBEDTLS_ECP_PF_COMPRESSED (in ecp.h) + * the only unsupported curves are MBEDTLS_ECP_DP_SECP224R1 and + * MBEDTLS_ECP_DP_SECP224K1. + */ +#define MBEDTLS_PK_PARSE_EC_COMPRESSED + +/** + * \def MBEDTLS_ERROR_STRERROR_DUMMY + * + * Enable a dummy error function to make use of mbedtls_strerror() in + * third party libraries easier when MBEDTLS_ERROR_C is disabled + * (no effect when MBEDTLS_ERROR_C is enabled). + * + * You can safely disable this if MBEDTLS_ERROR_C is enabled, or if you're + * not using mbedtls_strerror() or error_strerror() in your application. + * + * Disable if you run into name conflicts and want to really remove the + * mbedtls_strerror() + */ +#define MBEDTLS_ERROR_STRERROR_DUMMY + +/** + * \def MBEDTLS_GENPRIME + * + * Enable the prime-number generation code. + * + * Requires: MBEDTLS_BIGNUM_C + */ +#define MBEDTLS_GENPRIME + +/** + * \def MBEDTLS_FS_IO + * + * Enable functions that use the filesystem. + */ +#define MBEDTLS_FS_IO + +/** + * \def MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES + * + * Do not add default entropy sources in mbedtls_entropy_init(). + * + * This is useful to have more control over the added entropy sources in an + * application. + * + * Uncomment this macro to prevent loading of default entropy functions. + */ +//#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES + +/** + * \def MBEDTLS_NO_PLATFORM_ENTROPY + * + * Do not use built-in platform entropy functions. + * This is useful if your platform does not support + * standards like the /dev/urandom or Windows CryptoAPI. + * + * Uncomment this macro to disable the built-in platform entropy functions. + */ +//#define MBEDTLS_NO_PLATFORM_ENTROPY + +/** + * \def MBEDTLS_ENTROPY_FORCE_SHA256 + * + * Force the entropy accumulator to use a SHA-256 accumulator instead of the + * default SHA-512 based one (if both are available). + * + * Requires: MBEDTLS_SHA256_C + * + * On 32-bit systems SHA-256 can be much faster than SHA-512. Use this option + * if you have performance concerns. + * + * This option is only useful if both MBEDTLS_SHA256_C and + * MBEDTLS_SHA512_C are defined. Otherwise the available hash module is used. + */ +//#define MBEDTLS_ENTROPY_FORCE_SHA256 + +/** + * \def MBEDTLS_ENTROPY_NV_SEED + * + * Enable the non-volatile (NV) seed file-based entropy source. + * (Also enables the NV seed read/write functions in the platform layer) + * + * This is crucial (if not required) on systems that do not have a + * cryptographic entropy source (in hardware or kernel) available. + * + * Requires: MBEDTLS_ENTROPY_C, MBEDTLS_PLATFORM_C + * + * \note The read/write functions that are used by the entropy source are + * determined in the platform layer, and can be modified at runtime and/or + * compile-time depending on the flags (MBEDTLS_PLATFORM_NV_SEED_*) used. + * + * \note If you use the default implementation functions that read a seedfile + * with regular fopen(), please make sure you make a seedfile with the + * proper name (defined in MBEDTLS_PLATFORM_STD_NV_SEED_FILE) and at + * least MBEDTLS_ENTROPY_BLOCK_SIZE bytes in size that can be read from + * and written to or you will get an entropy source error! The default + * implementation will only use the first MBEDTLS_ENTROPY_BLOCK_SIZE + * bytes from the file. + * + * \note The entropy collector will write to the seed file before entropy is + * given to an external source, to update it. + */ +//#define MBEDTLS_ENTROPY_NV_SEED + +/* MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER + * + * Enable key identifiers that encode a key owner identifier. + * + * The owner of a key is identified by a value of type ::mbedtls_key_owner_id_t + * which is currently hard-coded to be int32_t. + * + * Note that this option is meant for internal use only and may be removed + * without notice. + */ +//#define MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER + +/** + * \def MBEDTLS_MEMORY_DEBUG + * + * Enable debugging of buffer allocator memory issues. Automatically prints + * (to stderr) all (fatal) messages on memory allocation issues. Enables + * function for 'debug output' of allocated memory. + * + * Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C + * + * Uncomment this macro to let the buffer allocator print out error messages. + */ +//#define MBEDTLS_MEMORY_DEBUG + +/** + * \def MBEDTLS_MEMORY_BACKTRACE + * + * Include backtrace information with each allocated block. + * + * Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C + * GLIBC-compatible backtrace() and backtrace_symbols() support + * + * Uncomment this macro to include backtrace information + */ +//#define MBEDTLS_MEMORY_BACKTRACE + +/** + * \def MBEDTLS_PK_RSA_ALT_SUPPORT + * + * Support external private RSA keys (eg from a HSM) in the PK layer. + * + * Comment this macro to disable support for external private RSA keys. + */ +#define MBEDTLS_PK_RSA_ALT_SUPPORT + +/** + * \def MBEDTLS_PKCS1_V15 + * + * Enable support for PKCS#1 v1.5 encoding. + * + * Requires: MBEDTLS_RSA_C + * + * This enables support for PKCS#1 v1.5 operations. + */ +#define MBEDTLS_PKCS1_V15 + +/** + * \def MBEDTLS_PKCS1_V21 + * + * Enable support for PKCS#1 v2.1 encoding. + * + * Requires: MBEDTLS_RSA_C + * + * \warning If using a hash that is only provided by PSA drivers, you must + * call psa_crypto_init() before doing any PKCS#1 v2.1 operation. + * + * This enables support for RSAES-OAEP and RSASSA-PSS operations. + */ +#define MBEDTLS_PKCS1_V21 + +/** \def MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS + * + * Enable support for platform built-in keys. If you enable this feature, + * you must implement the function mbedtls_psa_platform_get_builtin_key(). + * See the documentation of that function for more information. + * + * Built-in keys are typically derived from a hardware unique key or + * stored in a secure element. + * + * Requires: MBEDTLS_PSA_CRYPTO_C. + * + * \warning This interface is experimental and may change or be removed + * without notice. + */ +//#define MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS + +/** \def MBEDTLS_PSA_CRYPTO_CLIENT + * + * Enable support for PSA crypto client. + * + * \note This option allows to include the code necessary for a PSA + * crypto client when the PSA crypto implementation is not included in + * the library (MBEDTLS_PSA_CRYPTO_C disabled). The code included is the + * code to set and get PSA key attributes. + * The development of PSA drivers partially relying on the library to + * fulfill the hardware gaps is another possible usage of this option. + * + * \warning This interface is experimental and may change or be removed + * without notice. + */ +//#define MBEDTLS_PSA_CRYPTO_CLIENT + +/** \def MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG + * + * Make the PSA Crypto module use an external random generator provided + * by a driver, instead of Mbed TLS's entropy and DRBG modules. + * + * \note This random generator must deliver random numbers with cryptographic + * quality and high performance. It must supply unpredictable numbers + * with a uniform distribution. The implementation of this function + * is responsible for ensuring that the random generator is seeded + * with sufficient entropy. If you have a hardware TRNG which is slow + * or delivers non-uniform output, declare it as an entropy source + * with mbedtls_entropy_add_source() instead of enabling this option. + * + * If you enable this option, you must configure the type + * ::mbedtls_psa_external_random_context_t in psa/crypto_platform.h + * and define a function called mbedtls_psa_external_get_random() + * with the following prototype: + * ``` + * psa_status_t mbedtls_psa_external_get_random( + * mbedtls_psa_external_random_context_t *context, + * uint8_t *output, size_t output_size, size_t *output_length); + * ); + * ``` + * The \c context value is initialized to 0 before the first call. + * The function must fill the \c output buffer with \c output_size bytes + * of random data and set \c *output_length to \c output_size. + * + * Requires: MBEDTLS_PSA_CRYPTO_C + * + * \warning If you enable this option, code that uses the PSA cryptography + * interface will not use any of the entropy sources set up for + * the entropy module, nor the NV seed that MBEDTLS_ENTROPY_NV_SEED + * enables. + * + * \note This option is experimental and may be removed without notice. + */ +//#define MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG + +/** + * \def MBEDTLS_PSA_CRYPTO_SPM + * + * When MBEDTLS_PSA_CRYPTO_SPM is defined, the code is built for SPM (Secure + * Partition Manager) integration which separates the code into two parts: a + * NSPE (Non-Secure Process Environment) and an SPE (Secure Process + * Environment). + * + * If you enable this option, your build environment must include a header + * file `"crypto_spe.h"` (either in the `psa` subdirectory of the Mbed TLS + * header files, or in another directory on the compiler's include search + * path). Alternatively, your platform may customize the header + * `psa/crypto_platform.h`, in which case it can skip or replace the + * inclusion of `"crypto_spe.h"`. + * + * Module: library/psa_crypto.c + * Requires: MBEDTLS_PSA_CRYPTO_C + * + */ +//#define MBEDTLS_PSA_CRYPTO_SPM + +/** + * Uncomment to enable p256-m. This is an alternative implementation of + * key generation, ECDH and (randomized) ECDSA on the curve SECP256R1. + * Compared to the default implementation: + * + * - p256-m has a much smaller code size and RAM footprint. + * - p256-m is only available via the PSA API. This includes the pk module + * when #MBEDTLS_USE_PSA_CRYPTO is enabled. + * - p256-m does not support deterministic ECDSA, EC-JPAKE, custom protocols + * over the core arithmetic, or deterministic derivation of keys. + * + * We recommend enabling this option if your application uses the PSA API + * and the only elliptic curve support it needs is ECDH and ECDSA over + * SECP256R1. + * + * If you enable this option, you do not need to enable any ECC-related + * MBEDTLS_xxx option. You do need to separately request support for the + * cryptographic mechanisms through the PSA API: + * - #MBEDTLS_PSA_CRYPTO_C and #MBEDTLS_PSA_CRYPTO_CONFIG for PSA-based + * configuration; + * - #MBEDTLS_USE_PSA_CRYPTO if you want to use p256-m from PK, X.509 or TLS; + * - #PSA_WANT_ECC_SECP_R1_256; + * - #PSA_WANT_ALG_ECDH and/or #PSA_WANT_ALG_ECDSA as needed; + * - #PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY, #PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC, + * #PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_IMPORT, + * #PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_EXPORT and/or + * #PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE as needed. + * + * \note To benefit from the smaller code size of p256-m, make sure that you + * do not enable any ECC-related option not supported by p256-m: this + * would cause the built-in ECC implementation to be built as well, in + * order to provide the required option. + * Make sure #PSA_WANT_ALG_DETERMINISTIC_ECDSA, #PSA_WANT_ALG_JPAKE and + * #PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE, and curves other than + * SECP256R1 are disabled as they are not supported by this driver. + * Also, avoid defining #MBEDTLS_PK_PARSE_EC_COMPRESSED or + * #MBEDTLS_PK_PARSE_EC_EXTENDED as those currently require a subset of + * the built-in ECC implementation, see docs/driver-only-builds.md. + */ +//#define MBEDTLS_PSA_P256M_DRIVER_ENABLED + +/** + * \def MBEDTLS_PSA_INJECT_ENTROPY + * + * Enable support for entropy injection at first boot. This feature is + * required on systems that do not have a built-in entropy source (TRNG). + * This feature is currently not supported on systems that have a built-in + * entropy source. + * + * Requires: MBEDTLS_PSA_CRYPTO_STORAGE_C, MBEDTLS_ENTROPY_NV_SEED + * + */ +//#define MBEDTLS_PSA_INJECT_ENTROPY + +/** + * \def MBEDTLS_RSA_NO_CRT + * + * Do not use the Chinese Remainder Theorem + * for the RSA private operation. + * + * Uncomment this macro to disable the use of CRT in RSA. + * + */ +//#define MBEDTLS_RSA_NO_CRT + +/** + * \def MBEDTLS_SELF_TEST + * + * Enable the checkup functions (*_self_test). + */ +#define MBEDTLS_SELF_TEST + +/** + * \def MBEDTLS_SHA256_SMALLER + * + * Enable an implementation of SHA-256 that has lower ROM footprint but also + * lower performance. + * + * The default implementation is meant to be a reasonable compromise between + * performance and size. This version optimizes more aggressively for size at + * the expense of performance. Eg on Cortex-M4 it reduces the size of + * mbedtls_sha256_process() from ~2KB to ~0.5KB for a performance hit of about + * 30%. + * + * Uncomment to enable the smaller implementation of SHA256. + */ +//#define MBEDTLS_SHA256_SMALLER + +/** + * \def MBEDTLS_SHA512_SMALLER + * + * Enable an implementation of SHA-512 that has lower ROM footprint but also + * lower performance. + * + * Uncomment to enable the smaller implementation of SHA512. + */ +//#define MBEDTLS_SHA512_SMALLER + +/** + * \def MBEDTLS_SSL_ALL_ALERT_MESSAGES + * + * Enable sending of alert messages in case of encountered errors as per RFC. + * If you choose not to send the alert messages, Mbed TLS can still communicate + * with other servers, only debugging of failures is harder. + * + * The advantage of not sending alert messages, is that no information is given + * about reasons for failures thus preventing adversaries of gaining intel. + * + * Enable sending of all alert messages + */ +#define MBEDTLS_SSL_ALL_ALERT_MESSAGES + +/** + * \def MBEDTLS_SSL_DTLS_CONNECTION_ID + * + * Enable support for the DTLS Connection ID (CID) extension, + * which allows to identify DTLS connections across changes + * in the underlying transport. The CID functionality is described + * in RFC 9146. + * + * Setting this option enables the SSL APIs `mbedtls_ssl_set_cid()`, + * mbedtls_ssl_get_own_cid()`, `mbedtls_ssl_get_peer_cid()` and + * `mbedtls_ssl_conf_cid()`. See the corresponding documentation for + * more information. + * + * The maximum lengths of outgoing and incoming CIDs can be configured + * through the options + * - MBEDTLS_SSL_CID_OUT_LEN_MAX + * - MBEDTLS_SSL_CID_IN_LEN_MAX. + * + * Requires: MBEDTLS_SSL_PROTO_DTLS + * + * Uncomment to enable the Connection ID extension. + */ +#define MBEDTLS_SSL_DTLS_CONNECTION_ID + + +/** + * \def MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT + * + * Defines whether RFC 9146 (default) or the legacy version + * (version draft-ietf-tls-dtls-connection-id-05, + * https://tools.ietf.org/html/draft-ietf-tls-dtls-connection-id-05) + * is used. + * + * Set the value to 0 for the standard version, and + * 1 for the legacy draft version. + * + * \deprecated Support for the legacy version of the DTLS + * Connection ID feature is deprecated. Please + * switch to the standardized version defined + * in RFC 9146 enabled by utilizing + * MBEDTLS_SSL_DTLS_CONNECTION_ID without use + * of MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT. + * + * Requires: MBEDTLS_SSL_DTLS_CONNECTION_ID + */ +#define MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT 0 + +/** + * \def MBEDTLS_SSL_ASYNC_PRIVATE + * + * Enable asynchronous external private key operations in SSL. This allows + * you to configure an SSL connection to call an external cryptographic + * module to perform private key operations instead of performing the + * operation inside the library. + * + * Requires: MBEDTLS_X509_CRT_PARSE_C + */ +//#define MBEDTLS_SSL_ASYNC_PRIVATE + +/** + * \def MBEDTLS_SSL_CONTEXT_SERIALIZATION + * + * Enable serialization of the TLS context structures, through use of the + * functions mbedtls_ssl_context_save() and mbedtls_ssl_context_load(). + * + * This pair of functions allows one side of a connection to serialize the + * context associated with the connection, then free or re-use that context + * while the serialized state is persisted elsewhere, and finally deserialize + * that state to a live context for resuming read/write operations on the + * connection. From a protocol perspective, the state of the connection is + * unaffected, in particular this is entirely transparent to the peer. + * + * Note: this is distinct from TLS session resumption, which is part of the + * protocol and fully visible by the peer. TLS session resumption enables + * establishing new connections associated to a saved session with shorter, + * lighter handshakes, while context serialization is a local optimization in + * handling a single, potentially long-lived connection. + * + * Enabling these APIs makes some SSL structures larger, as 64 extra bytes are + * saved after the handshake to allow for more efficient serialization, so if + * you don't need this feature you'll save RAM by disabling it. + * + * Requires: MBEDTLS_GCM_C or MBEDTLS_CCM_C or MBEDTLS_CHACHAPOLY_C + * + * Comment to disable the context serialization APIs. + */ +#define MBEDTLS_SSL_CONTEXT_SERIALIZATION + +/** + * \def MBEDTLS_SSL_DEBUG_ALL + * + * Enable the debug messages in SSL module for all issues. + * Debug messages have been disabled in some places to prevent timing + * attacks due to (unbalanced) debugging function calls. + * + * If you need all error reporting you should enable this during debugging, + * but remove this for production servers that should log as well. + * + * Uncomment this macro to report all debug messages on errors introducing + * a timing side-channel. + * + */ +//#define MBEDTLS_SSL_DEBUG_ALL + +/** \def MBEDTLS_SSL_ENCRYPT_THEN_MAC + * + * Enable support for Encrypt-then-MAC, RFC 7366. + * + * This allows peers that both support it to use a more robust protection for + * ciphersuites using CBC, providing deep resistance against timing attacks + * on the padding or underlying cipher. + * + * This only affects CBC ciphersuites, and is useless if none is defined. + * + * Requires: MBEDTLS_SSL_PROTO_TLS1_2 + * + * Comment this macro to disable support for Encrypt-then-MAC + */ +#define MBEDTLS_SSL_ENCRYPT_THEN_MAC + +/** \def MBEDTLS_SSL_EXTENDED_MASTER_SECRET + * + * Enable support for RFC 7627: Session Hash and Extended Master Secret + * Extension. + * + * This was introduced as "the proper fix" to the Triple Handshake family of + * attacks, but it is recommended to always use it (even if you disable + * renegotiation), since it actually fixes a more fundamental issue in the + * original SSL/TLS design, and has implications beyond Triple Handshake. + * + * Requires: MBEDTLS_SSL_PROTO_TLS1_2 + * + * Comment this macro to disable support for Extended Master Secret. + */ +#define MBEDTLS_SSL_EXTENDED_MASTER_SECRET + +/** + * \def MBEDTLS_SSL_KEEP_PEER_CERTIFICATE + * + * This option controls the availability of the API mbedtls_ssl_get_peer_cert() + * giving access to the peer's certificate after completion of the handshake. + * + * Unless you need mbedtls_ssl_peer_cert() in your application, it is + * recommended to disable this option for reduced RAM usage. + * + * \note If this option is disabled, mbedtls_ssl_get_peer_cert() is still + * defined, but always returns \c NULL. + * + * \note This option has no influence on the protection against the + * triple handshake attack. Even if it is disabled, Mbed TLS will + * still ensure that certificates do not change during renegotiation, + * for example by keeping a hash of the peer's certificate. + * + * \note This option is required if MBEDTLS_SSL_PROTO_TLS1_3 is set. + * + * Comment this macro to disable storing the peer's certificate + * after the handshake. + */ +#define MBEDTLS_SSL_KEEP_PEER_CERTIFICATE + +/** + * \def MBEDTLS_SSL_RENEGOTIATION + * + * Enable support for TLS renegotiation. + * + * The two main uses of renegotiation are (1) refresh keys on long-lived + * connections and (2) client authentication after the initial handshake. + * If you don't need renegotiation, it's probably better to disable it, since + * it has been associated with security issues in the past and is easy to + * misuse/misunderstand. + * + * Requires: MBEDTLS_SSL_PROTO_TLS1_2 + * + * Comment this to disable support for renegotiation. + * + * \note Even if this option is disabled, both client and server are aware + * of the Renegotiation Indication Extension (RFC 5746) used to + * prevent the SSL renegotiation attack (see RFC 5746 Sect. 1). + * (See \c mbedtls_ssl_conf_legacy_renegotiation for the + * configuration of this extension). + * + */ +#define MBEDTLS_SSL_RENEGOTIATION + +/** + * \def MBEDTLS_SSL_MAX_FRAGMENT_LENGTH + * + * Enable support for RFC 6066 max_fragment_length extension in SSL. + * + * Comment this macro to disable support for the max_fragment_length extension + */ +#define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH + +/** + * \def MBEDTLS_SSL_RECORD_SIZE_LIMIT + * + * Enable support for RFC 8449 record_size_limit extension in SSL (TLS 1.3 only). + * + * \warning This extension is currently in development and must NOT be used except + * for testing purposes. + * + * Requires: MBEDTLS_SSL_PROTO_TLS1_3 + * + * Uncomment this macro to enable support for the record_size_limit extension + */ +//#define MBEDTLS_SSL_RECORD_SIZE_LIMIT + +/** + * \def MBEDTLS_SSL_PROTO_TLS1_2 + * + * Enable support for TLS 1.2 (and DTLS 1.2 if DTLS is enabled). + * + * Requires: Without MBEDTLS_USE_PSA_CRYPTO: MBEDTLS_MD_C and + * (MBEDTLS_SHA256_C or MBEDTLS_SHA384_C or + * SHA-256 or SHA-512 provided by a PSA driver) + * With MBEDTLS_USE_PSA_CRYPTO: + * PSA_WANT_ALG_SHA_256 or PSA_WANT_ALG_SHA_384 + * + * \warning If building with MBEDTLS_USE_PSA_CRYPTO, or if the hash(es) used + * are only provided by PSA drivers, you must call psa_crypto_init() before + * doing any TLS operations. + * + * Comment this macro to disable support for TLS 1.2 / DTLS 1.2 + */ +#define MBEDTLS_SSL_PROTO_TLS1_2 + +/** + * \def MBEDTLS_SSL_PROTO_TLS1_3 + * + * Enable support for TLS 1.3. + * + * \note See docs/architecture/tls13-support.md for a description of the TLS + * 1.3 support that this option enables. + * + * Requires: MBEDTLS_SSL_KEEP_PEER_CERTIFICATE + * Requires: MBEDTLS_PSA_CRYPTO_C + * + * \note TLS 1.3 uses PSA crypto for cryptographic operations that are + * directly performed by TLS 1.3 code. As a consequence, you must + * call psa_crypto_init() before the first TLS 1.3 handshake. + * + * \note Cryptographic operations performed indirectly via another module + * (X.509, PK) or by code shared with TLS 1.2 (record protection, + * running handshake hash) only use PSA crypto if + * #MBEDTLS_USE_PSA_CRYPTO is enabled. + * + * Uncomment this macro to enable the support for TLS 1.3. + */ +//#define MBEDTLS_SSL_PROTO_TLS1_3 + +/** + * \def MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE + * + * Enable TLS 1.3 middlebox compatibility mode. + * + * As specified in Section D.4 of RFC 8446, TLS 1.3 offers a compatibility + * mode to make a TLS 1.3 connection more likely to pass through middle boxes + * expecting TLS 1.2 traffic. + * + * Turning on the compatibility mode comes at the cost of a few added bytes + * on the wire, but it doesn't affect compatibility with TLS 1.3 implementations + * that don't use it. Therefore, unless transmission bandwidth is critical and + * you know that middlebox compatibility issues won't occur, it is therefore + * recommended to set this option. + * + * Comment to disable compatibility mode for TLS 1.3. If + * MBEDTLS_SSL_PROTO_TLS1_3 is not enabled, this option does not have any + * effect on the build. + * + */ +//#define MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE + +/** + * \def MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED + * + * Enable TLS 1.3 PSK key exchange mode. + * + * Comment to disable support for the PSK key exchange mode in TLS 1.3. If + * MBEDTLS_SSL_PROTO_TLS1_3 is not enabled, this option does not have any + * effect on the build. + * + */ +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED + +/** + * \def MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED + * + * Enable TLS 1.3 ephemeral key exchange mode. + * + * Requires: PSA_WANT_ALG_ECDH or PSA_WANT_ALG_FFDH + * MBEDTLS_X509_CRT_PARSE_C + * and at least one of: + * MBEDTLS_ECDSA_C or (MBEDTLS_USE_PSA_CRYPTO and PSA_WANT_ALG_ECDSA) + * MBEDTLS_PKCS1_V21 + * + * Comment to disable support for the ephemeral key exchange mode in TLS 1.3. + * If MBEDTLS_SSL_PROTO_TLS1_3 is not enabled, this option does not have any + * effect on the build. + * + */ +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED + +/** + * \def MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED + * + * Enable TLS 1.3 PSK ephemeral key exchange mode. + * + * Requires: PSA_WANT_ALG_ECDH or PSA_WANT_ALG_FFDH + * + * Comment to disable support for the PSK ephemeral key exchange mode in + * TLS 1.3. If MBEDTLS_SSL_PROTO_TLS1_3 is not enabled, this option does not + * have any effect on the build. + * + */ +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED + +/** + * \def MBEDTLS_SSL_EARLY_DATA + * + * Enable support for RFC 8446 TLS 1.3 early data. + * + * Requires: MBEDTLS_SSL_SESSION_TICKETS and either + * MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED or + * MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED + * + * Comment this to disable support for early data. If MBEDTLS_SSL_PROTO_TLS1_3 + * is not enabled, this option does not have any effect on the build. + * + * This feature is experimental, not completed and thus not ready for + * production. + * + * \note The maximum amount of early data can be set with + * MBEDTLS_SSL_MAX_EARLY_DATA_SIZE. + * + */ +//#define MBEDTLS_SSL_EARLY_DATA + +/** + * \def MBEDTLS_SSL_PROTO_DTLS + * + * Enable support for DTLS (all available versions). + * + * Enable this and MBEDTLS_SSL_PROTO_TLS1_2 to enable DTLS 1.2. + * + * Requires: MBEDTLS_SSL_PROTO_TLS1_2 + * + * Comment this macro to disable support for DTLS + */ +#define MBEDTLS_SSL_PROTO_DTLS + +/** + * \def MBEDTLS_SSL_ALPN + * + * Enable support for RFC 7301 Application Layer Protocol Negotiation. + * + * Comment this macro to disable support for ALPN. + */ +#define MBEDTLS_SSL_ALPN + +/** + * \def MBEDTLS_SSL_DTLS_ANTI_REPLAY + * + * Enable support for the anti-replay mechanism in DTLS. + * + * Requires: MBEDTLS_SSL_TLS_C + * MBEDTLS_SSL_PROTO_DTLS + * + * \warning Disabling this is often a security risk! + * See mbedtls_ssl_conf_dtls_anti_replay() for details. + * + * Comment this to disable anti-replay in DTLS. + */ +#define MBEDTLS_SSL_DTLS_ANTI_REPLAY + +/** + * \def MBEDTLS_SSL_DTLS_HELLO_VERIFY + * + * Enable support for HelloVerifyRequest on DTLS servers. + * + * This feature is highly recommended to prevent DTLS servers being used as + * amplifiers in DoS attacks against other hosts. It should always be enabled + * unless you know for sure amplification cannot be a problem in the + * environment in which your server operates. + * + * \warning Disabling this can be a security risk! (see above) + * + * Requires: MBEDTLS_SSL_PROTO_DTLS + * + * Comment this to disable support for HelloVerifyRequest. + */ +#define MBEDTLS_SSL_DTLS_HELLO_VERIFY + +/** + * \def MBEDTLS_SSL_DTLS_SRTP + * + * Enable support for negotiation of DTLS-SRTP (RFC 5764) + * through the use_srtp extension. + * + * \note This feature provides the minimum functionality required + * to negotiate the use of DTLS-SRTP and to allow the derivation of + * the associated SRTP packet protection key material. + * In particular, the SRTP packet protection itself, as well as the + * demultiplexing of RTP and DTLS packets at the datagram layer + * (see Section 5 of RFC 5764), are not handled by this feature. + * Instead, after successful completion of a handshake negotiating + * the use of DTLS-SRTP, the extended key exporter API + * mbedtls_ssl_conf_export_keys_cb() should be used to implement + * the key exporter described in Section 4.2 of RFC 5764 and RFC 5705 + * (this is implemented in the SSL example programs). + * The resulting key should then be passed to an SRTP stack. + * + * Setting this option enables the runtime API + * mbedtls_ssl_conf_dtls_srtp_protection_profiles() + * through which the supported DTLS-SRTP protection + * profiles can be configured. You must call this API at + * runtime if you wish to negotiate the use of DTLS-SRTP. + * + * Requires: MBEDTLS_SSL_PROTO_DTLS + * + * Uncomment this to enable support for use_srtp extension. + */ +//#define MBEDTLS_SSL_DTLS_SRTP + +/** + * \def MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE + * + * Enable server-side support for clients that reconnect from the same port. + * + * Some clients unexpectedly close the connection and try to reconnect using the + * same source port. This needs special support from the server to handle the + * new connection securely, as described in section 4.2.8 of RFC 6347. This + * flag enables that support. + * + * Requires: MBEDTLS_SSL_DTLS_HELLO_VERIFY + * + * Comment this to disable support for clients reusing the source port. + */ +#define MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE + +/** + * \def MBEDTLS_SSL_SESSION_TICKETS + * + * Enable support for RFC 5077 session tickets in SSL. + * Client-side, provides full support for session tickets (maintenance of a + * session store remains the responsibility of the application, though). + * Server-side, you also need to provide callbacks for writing and parsing + * tickets, including authenticated encryption and key management. Example + * callbacks are provided by MBEDTLS_SSL_TICKET_C. + * + * Comment this macro to disable support for SSL session tickets + */ +#define MBEDTLS_SSL_SESSION_TICKETS + +/** + * \def MBEDTLS_SSL_SERVER_NAME_INDICATION + * + * Enable support for RFC 6066 server name indication (SNI) in SSL. + * + * Requires: MBEDTLS_X509_CRT_PARSE_C + * + * Comment this macro to disable support for server name indication in SSL + */ +#define MBEDTLS_SSL_SERVER_NAME_INDICATION + +/** + * \def MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH + * + * When this option is enabled, the SSL buffer will be resized automatically + * based on the negotiated maximum fragment length in each direction. + * + * Requires: MBEDTLS_SSL_MAX_FRAGMENT_LENGTH + */ +//#define MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH + +/** + * \def MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN + * + * Enable testing of the constant-flow nature of some sensitive functions with + * clang's MemorySanitizer. This causes some existing tests to also test + * this non-functional property of the code under test. + * + * This setting requires compiling with clang -fsanitize=memory. The test + * suites can then be run normally. + * + * \warning This macro is only used for extended testing; it is not considered + * part of the library's API, so it may change or disappear at any time. + * + * Uncomment to enable testing of the constant-flow nature of selected code. + */ +//#define MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN + +/** + * \def MBEDTLS_TEST_CONSTANT_FLOW_VALGRIND + * + * Enable testing of the constant-flow nature of some sensitive functions with + * valgrind's memcheck tool. This causes some existing tests to also test + * this non-functional property of the code under test. + * + * This setting requires valgrind headers for building, and is only useful for + * testing if the tests suites are run with valgrind's memcheck. This can be + * done for an individual test suite with 'valgrind ./test_suite_xxx', or when + * using CMake, this can be done for all test suites with 'make memcheck'. + * + * \warning This macro is only used for extended testing; it is not considered + * part of the library's API, so it may change or disappear at any time. + * + * Uncomment to enable testing of the constant-flow nature of selected code. + */ +//#define MBEDTLS_TEST_CONSTANT_FLOW_VALGRIND + +/** + * \def MBEDTLS_TEST_HOOKS + * + * Enable features for invasive testing such as introspection functions and + * hooks for fault injection. This enables additional unit tests. + * + * Merely enabling this feature should not change the behavior of the product. + * It only adds new code, and new branching points where the default behavior + * is the same as when this feature is disabled. + * However, this feature increases the attack surface: there is an added + * risk of vulnerabilities, and more gadgets that can make exploits easier. + * Therefore this feature must never be enabled in production. + * + * See `docs/architecture/testing/mbed-crypto-invasive-testing.md` for more + * information. + * + * Uncomment to enable invasive tests. + */ +//#define MBEDTLS_TEST_HOOKS + +/** + * \def MBEDTLS_THREADING_ALT + * + * Provide your own alternate threading implementation. + * + * Requires: MBEDTLS_THREADING_C + * + * Uncomment this to allow your own alternate threading implementation. + */ +//#define MBEDTLS_THREADING_ALT + +/** + * \def MBEDTLS_THREADING_PTHREAD + * + * Enable the pthread wrapper layer for the threading layer. + * + * Requires: MBEDTLS_THREADING_C + * + * Uncomment this to enable pthread mutexes. + */ +//#define MBEDTLS_THREADING_PTHREAD + +/** + * \def MBEDTLS_USE_PSA_CRYPTO + * + * Make the X.509 and TLS libraries use PSA for cryptographic operations as + * much as possible, and enable new APIs for using keys handled by PSA Crypto. + * + * \note Development of this option is currently in progress, and parts of Mbed + * TLS's X.509 and TLS modules are not ported to PSA yet. However, these parts + * will still continue to work as usual, so enabling this option should not + * break backwards compatibility. + * + * \warning If you enable this option, you need to call `psa_crypto_init()` + * before calling any function from the SSL/TLS, X.509 or PK modules, except + * for the various mbedtls_xxx_init() functions which can be called at any time. + * + * \note An important and desirable effect of this option is that it allows + * PK, X.509 and TLS to take advantage of PSA drivers. For example, enabling + * this option is what allows use of drivers for ECDSA, ECDH and EC J-PAKE in + * those modules. However, note that even with this option disabled, some code + * in PK, X.509, TLS or the crypto library might still use PSA drivers, if it + * can determine it's safe to do so; currently that's the case for hashes. + * + * \note See docs/use-psa-crypto.md for a complete description this option. + * + * Requires: MBEDTLS_PSA_CRYPTO_C. + * + * Uncomment this to enable internal use of PSA Crypto and new associated APIs. + */ +//#define MBEDTLS_USE_PSA_CRYPTO + +/** + * \def MBEDTLS_PSA_CRYPTO_CONFIG + * + * This setting allows support for cryptographic mechanisms through the PSA + * API to be configured separately from support through the mbedtls API. + * + * When this option is disabled, the PSA API exposes the cryptographic + * mechanisms that can be implemented on top of the `mbedtls_xxx` API + * configured with `MBEDTLS_XXX` symbols. + * + * When this option is enabled, the PSA API exposes the cryptographic + * mechanisms requested by the `PSA_WANT_XXX` symbols defined in + * include/psa/crypto_config.h. The corresponding `MBEDTLS_XXX` settings are + * automatically enabled if required (i.e. if no PSA driver provides the + * mechanism). You may still freely enable additional `MBEDTLS_XXX` symbols + * in mbedtls_config.h. + * + * If the symbol #MBEDTLS_PSA_CRYPTO_CONFIG_FILE is defined, it specifies + * an alternative header to include instead of include/psa/crypto_config.h. + * + * \warning This option is experimental, in that the set of `PSA_WANT_XXX` + * symbols is not completely finalized yet, and the configuration + * tooling is not ideally adapted to having two separate configuration + * files. + * Future minor releases of Mbed TLS may make minor changes to those + * symbols, but we will endeavor to provide a transition path. + * Nonetheless, this option is considered mature enough to use in + * production, as long as you accept that you may need to make + * minor changes to psa/crypto_config.h when upgrading Mbed TLS. + */ +//#define MBEDTLS_PSA_CRYPTO_CONFIG + +/** + * \def MBEDTLS_VERSION_FEATURES + * + * Allow run-time checking of compile-time enabled features. Thus allowing users + * to check at run-time if the library is for instance compiled with threading + * support via mbedtls_version_check_feature(). + * + * Requires: MBEDTLS_VERSION_C + * + * Comment this to disable run-time checking and save ROM space + */ +#define MBEDTLS_VERSION_FEATURES + +/** + * \def MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK + * + * If set, this enables the X.509 API `mbedtls_x509_crt_verify_with_ca_cb()` + * and the SSL API `mbedtls_ssl_conf_ca_cb()` which allow users to configure + * the set of trusted certificates through a callback instead of a linked + * list. + * + * This is useful for example in environments where a large number of trusted + * certificates is present and storing them in a linked list isn't efficient + * enough, or when the set of trusted certificates changes frequently. + * + * See the documentation of `mbedtls_x509_crt_verify_with_ca_cb()` and + * `mbedtls_ssl_conf_ca_cb()` for more information. + * + * Requires: MBEDTLS_X509_CRT_PARSE_C + * + * Uncomment to enable trusted certificate callbacks. + */ +//#define MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK + +/** + * \def MBEDTLS_X509_REMOVE_INFO + * + * Disable mbedtls_x509_*_info() and related APIs. + * + * Uncomment to omit mbedtls_x509_*_info(), as well as mbedtls_debug_print_crt() + * and other functions/constants only used by these functions, thus reducing + * the code footprint by several KB. + */ +//#define MBEDTLS_X509_REMOVE_INFO + +/** + * \def MBEDTLS_X509_RSASSA_PSS_SUPPORT + * + * Enable parsing and verification of X.509 certificates, CRLs and CSRS + * signed with RSASSA-PSS (aka PKCS#1 v2.1). + * + * Comment this macro to disallow using RSASSA-PSS in certificates. + */ +#define MBEDTLS_X509_RSASSA_PSS_SUPPORT +/** \} name SECTION: Mbed TLS feature support */ + +/** + * \name SECTION: Mbed TLS modules + * + * This section enables or disables entire modules in Mbed TLS + * \{ + */ + +/** + * \def MBEDTLS_AESNI_C + * + * Enable AES-NI support on x86-64 or x86-32. + * + * \note AESNI is only supported with certain compilers and target options: + * - Visual Studio 2013: supported. + * - GCC, x86-64, target not explicitly supporting AESNI: + * requires MBEDTLS_HAVE_ASM. + * - GCC, x86-32, target not explicitly supporting AESNI: + * not supported. + * - GCC, x86-64 or x86-32, target supporting AESNI: supported. + * For this assembly-less implementation, you must currently compile + * `library/aesni.c` and `library/aes.c` with machine options to enable + * SSE2 and AESNI instructions: `gcc -msse2 -maes -mpclmul` or + * `clang -maes -mpclmul`. + * - Non-x86 targets: this option is silently ignored. + * - Other compilers: this option is silently ignored. + * + * \note + * Above, "GCC" includes compatible compilers such as Clang. + * The limitations on target support are likely to be relaxed in the future. + * + * Module: library/aesni.c + * Caller: library/aes.c + * + * Requires: MBEDTLS_HAVE_ASM (on some platforms, see note) + * + * This modules adds support for the AES-NI instructions on x86. + */ +#define MBEDTLS_AESNI_C + +/** + * \def MBEDTLS_AESCE_C + * + * Enable AES cryptographic extension support on 64-bit Arm. + * + * Module: library/aesce.c + * Caller: library/aes.c + * + * Requires: MBEDTLS_AES_C + * + * \warning Runtime detection only works on Linux. For non-Linux operating + * system, Armv8-A Cryptographic Extensions must be supported by + * the CPU when this option is enabled. + * + * \note Minimum compiler versions for this feature are Clang 4.0, + * armclang 6.6, GCC 6.0 or MSVC 2019 version 16.11.2. + * + * \note \c CFLAGS must be set to a minimum of \c -march=armv8-a+crypto for + * armclang <= 6.9 + * + * This module adds support for the AES Armv8-A Cryptographic Extensions on Aarch64 systems. + */ +#define MBEDTLS_AESCE_C + +/** + * \def MBEDTLS_AES_C + * + * Enable the AES block cipher. + * + * Module: library/aes.c + * Caller: library/cipher.c + * library/pem.c + * library/ctr_drbg.c + * + * This module enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA + * MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384 + * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384 + * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA + * MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256 + * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256 + * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA + * + * PEM_PARSE uses AES for decrypting encrypted keys. + */ +#define MBEDTLS_AES_C + +/** + * \def MBEDTLS_ASN1_PARSE_C + * + * Enable the generic ASN1 parser. + * + * Module: library/asn1.c + * Caller: library/x509.c + * library/dhm.c + * library/pkcs12.c + * library/pkcs5.c + * library/pkparse.c + */ +#define MBEDTLS_ASN1_PARSE_C + +/** + * \def MBEDTLS_ASN1_WRITE_C + * + * Enable the generic ASN1 writer. + * + * Module: library/asn1write.c + * Caller: library/ecdsa.c + * library/pkwrite.c + * library/x509_create.c + * library/x509write_crt.c + * library/x509write_csr.c + */ +#define MBEDTLS_ASN1_WRITE_C + +/** + * \def MBEDTLS_BASE64_C + * + * Enable the Base64 module. + * + * Module: library/base64.c + * Caller: library/pem.c + * + * This module is required for PEM support (required by X.509). + */ +#define MBEDTLS_BASE64_C + +/** + * \def MBEDTLS_BIGNUM_C + * + * Enable the multi-precision integer library. + * + * Module: library/bignum.c + * library/bignum_core.c + * library/bignum_mod.c + * library/bignum_mod_raw.c + * Caller: library/dhm.c + * library/ecp.c + * library/ecdsa.c + * library/rsa.c + * library/rsa_alt_helpers.c + * library/ssl_tls.c + * + * This module is required for RSA, DHM and ECC (ECDH, ECDSA) support. + */ +#define MBEDTLS_BIGNUM_C + +/** + * \def MBEDTLS_CAMELLIA_C + * + * Enable the Camellia block cipher. + * + * Module: library/camellia.c + * Caller: library/cipher.c + * + * This module enables the following ciphersuites (if other requisites are + * enabled as well): + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 + * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 + */ +#define MBEDTLS_CAMELLIA_C + +/** + * \def MBEDTLS_ARIA_C + * + * Enable the ARIA block cipher. + * + * Module: library/aria.c + * Caller: library/cipher.c + * + * This module enables the following ciphersuites (if other requisites are + * enabled as well): + * + * MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384 + * MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256 + * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384 + * MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256 + * MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384 + * MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256 + * MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384 + * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256 + * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384 + * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256 + * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384 + * MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256 + * MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384 + */ +#define MBEDTLS_ARIA_C + +/** + * \def MBEDTLS_CCM_C + * + * Enable the Counter with CBC-MAC (CCM) mode for 128-bit block cipher. + * + * Module: library/ccm.c + * + * Requires: MBEDTLS_CIPHER_C, MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C or + * MBEDTLS_ARIA_C + * + * This module enables the AES-CCM ciphersuites, if other requisites are + * enabled as well. + */ +#define MBEDTLS_CCM_C + +/** + * \def MBEDTLS_CHACHA20_C + * + * Enable the ChaCha20 stream cipher. + * + * Module: library/chacha20.c + */ +#define MBEDTLS_CHACHA20_C + +/** + * \def MBEDTLS_CHACHAPOLY_C + * + * Enable the ChaCha20-Poly1305 AEAD algorithm. + * + * Module: library/chachapoly.c + * + * This module requires: MBEDTLS_CHACHA20_C, MBEDTLS_POLY1305_C + */ +#define MBEDTLS_CHACHAPOLY_C + +/** + * \def MBEDTLS_CIPHER_C + * + * Enable the generic cipher layer. + * + * Module: library/cipher.c + * Caller: library/ccm.c + * library/cmac.c + * library/gcm.c + * library/nist_kw.c + * library/pkcs12.c + * library/pkcs5.c + * library/psa_crypto_aead.c + * library/psa_crypto_mac.c + * library/ssl_ciphersuites.c + * library/ssl_msg.c + * library/ssl_ticket.c (unless MBEDTLS_USE_PSA_CRYPTO is enabled) + * + * Uncomment to enable generic cipher wrappers. + */ +#define MBEDTLS_CIPHER_C + +/** + * \def MBEDTLS_CMAC_C + * + * Enable the CMAC (Cipher-based Message Authentication Code) mode for block + * ciphers. + * + * \note When #MBEDTLS_CMAC_ALT is active, meaning that the underlying + * implementation of the CMAC algorithm is provided by an alternate + * implementation, that alternate implementation may opt to not support + * AES-192 or 3DES as underlying block ciphers for the CMAC operation. + * + * Module: library/cmac.c + * + * Requires: MBEDTLS_CIPHER_C, MBEDTLS_AES_C or MBEDTLS_DES_C + * + */ +#define MBEDTLS_CMAC_C + +/** + * \def MBEDTLS_CTR_DRBG_C + * + * Enable the CTR_DRBG AES-based random generator. + * The CTR_DRBG generator uses AES-256 by default. + * To use AES-128 instead, enable \c MBEDTLS_CTR_DRBG_USE_128_BIT_KEY above. + * + * \note AES-128 will be used if \c MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH is set. + * + * \note To achieve a 256-bit security strength with CTR_DRBG, + * you must use AES-256 *and* use sufficient entropy. + * See ctr_drbg.h for more details. + * + * Module: library/ctr_drbg.c + * Caller: + * + * Requires: MBEDTLS_AES_C + * + * This module provides the CTR_DRBG AES random number generator. + */ +#define MBEDTLS_CTR_DRBG_C + +/** + * \def MBEDTLS_DEBUG_C + * + * Enable the debug functions. + * + * Module: library/debug.c + * Caller: library/ssl_msg.c + * library/ssl_tls.c + * library/ssl_tls12_*.c + * library/ssl_tls13_*.c + * + * This module provides debugging functions. + */ +#define MBEDTLS_DEBUG_C + +/** + * \def MBEDTLS_DES_C + * + * Enable the DES block cipher. + * + * Module: library/des.c + * Caller: library/pem.c + * library/cipher.c + * + * PEM_PARSE uses DES/3DES for decrypting encrypted keys. + * + * \warning DES/3DES are considered weak ciphers and their use constitutes a + * security risk. We recommend considering stronger ciphers instead. + */ +#define MBEDTLS_DES_C + +/** + * \def MBEDTLS_DHM_C + * + * Enable the Diffie-Hellman-Merkle module. + * + * Module: library/dhm.c + * Caller: library/ssl_tls.c + * library/ssl*_client.c + * library/ssl*_server.c + * + * This module is used by the following key exchanges: + * DHE-RSA, DHE-PSK + * + * \warning Using DHE constitutes a security risk as it + * is not possible to validate custom DH parameters. + * If possible, it is recommended users should consider + * preferring other methods of key exchange. + * See dhm.h for more details. + * + */ +#define MBEDTLS_DHM_C + +/** + * \def MBEDTLS_ECDH_C + * + * Enable the elliptic curve Diffie-Hellman library. + * + * Module: library/ecdh.c + * Caller: library/psa_crypto.c + * library/ssl_tls.c + * library/ssl*_client.c + * library/ssl*_server.c + * + * This module is used by the following key exchanges: + * ECDHE-ECDSA, ECDHE-RSA, DHE-PSK + * + * Requires: MBEDTLS_ECP_C + */ +#define MBEDTLS_ECDH_C + +/** + * \def MBEDTLS_ECDSA_C + * + * Enable the elliptic curve DSA library. + * + * Module: library/ecdsa.c + * Caller: + * + * This module is used by the following key exchanges: + * ECDHE-ECDSA + * + * Requires: MBEDTLS_ECP_C, MBEDTLS_ASN1_WRITE_C, MBEDTLS_ASN1_PARSE_C, + * and at least one MBEDTLS_ECP_DP_XXX_ENABLED for a + * short Weierstrass curve. + */ +#define MBEDTLS_ECDSA_C + +/** + * \def MBEDTLS_ECJPAKE_C + * + * Enable the elliptic curve J-PAKE library. + * + * \note EC J-PAKE support is based on the Thread v1.0.0 specification. + * It has not been reviewed for compliance with newer standards such as + * Thread v1.1 or RFC 8236. + * + * Module: library/ecjpake.c + * Caller: + * + * This module is used by the following key exchanges: + * ECJPAKE + * + * Requires: MBEDTLS_ECP_C and either MBEDTLS_MD_C or MBEDTLS_PSA_CRYPTO_C + * + * \warning If using a hash that is only provided by PSA drivers, you must + * call psa_crypto_init() before doing any EC J-PAKE operations. + */ +#define MBEDTLS_ECJPAKE_C + +/** + * \def MBEDTLS_ECP_C + * + * Enable the elliptic curve over GF(p) library. + * + * Module: library/ecp.c + * Caller: library/ecdh.c + * library/ecdsa.c + * library/ecjpake.c + * + * Requires: MBEDTLS_BIGNUM_C and at least one MBEDTLS_ECP_DP_XXX_ENABLED + */ +#define MBEDTLS_ECP_C + +/** + * \def MBEDTLS_ENTROPY_C + * + * Enable the platform-specific entropy code. + * + * Module: library/entropy.c + * Caller: + * + * Requires: MBEDTLS_SHA512_C or MBEDTLS_SHA256_C + * + * This module provides a generic entropy pool + */ +#define MBEDTLS_ENTROPY_C + +/** + * \def MBEDTLS_ERROR_C + * + * Enable error code to error string conversion. + * + * Module: library/error.c + * Caller: + * + * This module enables mbedtls_strerror(). + */ +#define MBEDTLS_ERROR_C + +/** + * \def MBEDTLS_GCM_C + * + * Enable the Galois/Counter Mode (GCM). + * + * Module: library/gcm.c + * + * Requires: MBEDTLS_CIPHER_C, MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C or + * MBEDTLS_ARIA_C + * + * This module enables the AES-GCM and CAMELLIA-GCM ciphersuites, if other + * requisites are enabled as well. + */ +#define MBEDTLS_GCM_C + +/** + * \def MBEDTLS_HKDF_C + * + * Enable the HKDF algorithm (RFC 5869). + * + * Module: library/hkdf.c + * Caller: + * + * Requires: MBEDTLS_MD_C + * + * This module adds support for the Hashed Message Authentication Code + * (HMAC)-based key derivation function (HKDF). + */ +#define MBEDTLS_HKDF_C + +/** + * \def MBEDTLS_HMAC_DRBG_C + * + * Enable the HMAC_DRBG random generator. + * + * Module: library/hmac_drbg.c + * Caller: + * + * Requires: MBEDTLS_MD_C + * + * Uncomment to enable the HMAC_DRBG random number generator. + */ +#define MBEDTLS_HMAC_DRBG_C + +/** + * \def MBEDTLS_LMS_C + * + * Enable the LMS stateful-hash asymmetric signature algorithm. + * + * Module: library/lms.c + * Caller: + * + * Requires: MBEDTLS_PSA_CRYPTO_C + * + * Uncomment to enable the LMS verification algorithm and public key operations. + */ +#define MBEDTLS_LMS_C + +/** + * \def MBEDTLS_LMS_PRIVATE + * + * Enable LMS private-key operations and signing code. Functions enabled by this + * option are experimental, and should not be used in production. + * + * Requires: MBEDTLS_LMS_C + * + * Uncomment to enable the LMS signature algorithm and private key operations. + */ +//#define MBEDTLS_LMS_PRIVATE + +/** + * \def MBEDTLS_NIST_KW_C + * + * Enable the Key Wrapping mode for 128-bit block ciphers, + * as defined in NIST SP 800-38F. Only KW and KWP modes + * are supported. At the moment, only AES is approved by NIST. + * + * Module: library/nist_kw.c + * + * Requires: MBEDTLS_AES_C and MBEDTLS_CIPHER_C + */ +#define MBEDTLS_NIST_KW_C + +/** + * \def MBEDTLS_MD_C + * + * Enable the generic layer for message digest (hashing) and HMAC. + * + * Requires: one of: MBEDTLS_MD5_C, MBEDTLS_RIPEMD160_C, MBEDTLS_SHA1_C, + * MBEDTLS_SHA224_C, MBEDTLS_SHA256_C, MBEDTLS_SHA384_C, + * MBEDTLS_SHA512_C, or MBEDTLS_PSA_CRYPTO_C with at least + * one hash. + * Module: library/md.c + * Caller: library/constant_time.c + * library/ecdsa.c + * library/ecjpake.c + * library/hkdf.c + * library/hmac_drbg.c + * library/pk.c + * library/pkcs5.c + * library/pkcs12.c + * library/psa_crypto_ecp.c + * library/psa_crypto_rsa.c + * library/rsa.c + * library/ssl_cookie.c + * library/ssl_msg.c + * library/ssl_tls.c + * library/x509.c + * library/x509_crt.c + * library/x509write_crt.c + * library/x509write_csr.c + * + * Uncomment to enable generic message digest wrappers. + */ +#define MBEDTLS_MD_C + +/** + * \def MBEDTLS_MD5_C + * + * Enable the MD5 hash algorithm. + * + * Module: library/md5.c + * Caller: library/md.c + * library/pem.c + * library/ssl_tls.c + * + * This module is required for TLS 1.2 depending on the handshake parameters. + * Further, it is used for checking MD5-signed certificates, and for PBKDF1 + * when decrypting PEM-encoded encrypted keys. + * + * \warning MD5 is considered a weak message digest and its use constitutes a + * security risk. If possible, we recommend avoiding dependencies on + * it, and considering stronger message digests instead. + * + */ +#define MBEDTLS_MD5_C + +/** + * \def MBEDTLS_MEMORY_BUFFER_ALLOC_C + * + * Enable the buffer allocator implementation that makes use of a (stack) + * based buffer to 'allocate' dynamic memory. (replaces calloc() and free() + * calls) + * + * Module: library/memory_buffer_alloc.c + * + * Requires: MBEDTLS_PLATFORM_C + * MBEDTLS_PLATFORM_MEMORY (to use it within Mbed TLS) + * + * Enable this module to enable the buffer memory allocator. + */ +//#define MBEDTLS_MEMORY_BUFFER_ALLOC_C + +/** + * \def MBEDTLS_NET_C + * + * Enable the TCP and UDP over IPv6/IPv4 networking routines. + * + * \note This module only works on POSIX/Unix (including Linux, BSD and OS X) + * and Windows. For other platforms, you'll want to disable it, and write your + * own networking callbacks to be passed to \c mbedtls_ssl_set_bio(). + * + * \note See also our Knowledge Base article about porting to a new + * environment: + * https://mbed-tls.readthedocs.io/en/latest/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS + * + * Module: library/net_sockets.c + * + * This module provides networking routines. + */ +#define MBEDTLS_NET_C + +/** + * \def MBEDTLS_OID_C + * + * Enable the OID database. + * + * Module: library/oid.c + * Caller: library/asn1write.c + * library/pkcs5.c + * library/pkparse.c + * library/pkwrite.c + * library/rsa.c + * library/x509.c + * library/x509_create.c + * library/x509_crl.c + * library/x509_crt.c + * library/x509_csr.c + * library/x509write_crt.c + * library/x509write_csr.c + * + * This modules translates between OIDs and internal values. + */ +#define MBEDTLS_OID_C + +/** + * \def MBEDTLS_PADLOCK_C + * + * Enable VIA Padlock support on x86. + * + * Module: library/padlock.c + * Caller: library/aes.c + * + * Requires: MBEDTLS_HAVE_ASM + * + * This modules adds support for the VIA PadLock on x86. + */ +#define MBEDTLS_PADLOCK_C + +/** + * \def MBEDTLS_PEM_PARSE_C + * + * Enable PEM decoding / parsing. + * + * Module: library/pem.c + * Caller: library/dhm.c + * library/pkparse.c + * library/x509_crl.c + * library/x509_crt.c + * library/x509_csr.c + * + * Requires: MBEDTLS_BASE64_C + * optionally MBEDTLS_MD5_C, or PSA Crypto with MD5 (see below) + * + * \warning When parsing password-protected files, if MD5 is provided only by + * a PSA driver, you must call psa_crypto_init() before the first file. + * + * This modules adds support for decoding / parsing PEM files. + */ +#define MBEDTLS_PEM_PARSE_C + +/** + * \def MBEDTLS_PEM_WRITE_C + * + * Enable PEM encoding / writing. + * + * Module: library/pem.c + * Caller: library/pkwrite.c + * library/x509write_crt.c + * library/x509write_csr.c + * + * Requires: MBEDTLS_BASE64_C + * + * This modules adds support for encoding / writing PEM files. + */ +#define MBEDTLS_PEM_WRITE_C + +/** + * \def MBEDTLS_PK_C + * + * Enable the generic public (asymmetric) key layer. + * + * Module: library/pk.c + * Caller: library/psa_crypto_rsa.c + * library/ssl_tls.c + * library/ssl*_client.c + * library/ssl*_server.c + * library/x509.c + * + * Requires: MBEDTLS_MD_C, MBEDTLS_RSA_C or MBEDTLS_ECP_C + * + * Uncomment to enable generic public key wrappers. + */ +#define MBEDTLS_PK_C + +/** + * \def MBEDTLS_PK_PARSE_C + * + * Enable the generic public (asymmetric) key parser. + * + * Module: library/pkparse.c + * Caller: library/x509_crt.c + * library/x509_csr.c + * + * Requires: MBEDTLS_PK_C + * + * Uncomment to enable generic public key parse functions. + */ +#define MBEDTLS_PK_PARSE_C + +/** + * \def MBEDTLS_PK_WRITE_C + * + * Enable the generic public (asymmetric) key writer. + * + * Module: library/pkwrite.c + * Caller: library/x509write.c + * + * Requires: MBEDTLS_PK_C + * + * Uncomment to enable generic public key write functions. + */ +#define MBEDTLS_PK_WRITE_C + +/** + * \def MBEDTLS_PKCS5_C + * + * Enable PKCS#5 functions. + * + * Module: library/pkcs5.c + * + * Requires: MBEDTLS_CIPHER_C + * Auto-enables: MBEDTLS_MD_C + * + * \warning If using a hash that is only provided by PSA drivers, you must + * call psa_crypto_init() before doing any PKCS5 operations. + * + * This module adds support for the PKCS#5 functions. + */ +#define MBEDTLS_PKCS5_C + +/** + * \def MBEDTLS_PKCS7_C + * + * Enable PKCS #7 core for using PKCS #7-formatted signatures. + * RFC Link - https://tools.ietf.org/html/rfc2315 + * + * Module: library/pkcs7.c + * + * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_OID_C, MBEDTLS_PK_PARSE_C, + * MBEDTLS_X509_CRT_PARSE_C MBEDTLS_X509_CRL_PARSE_C, + * MBEDTLS_BIGNUM_C, MBEDTLS_MD_C + * + * This module is required for the PKCS #7 parsing modules. + */ +#define MBEDTLS_PKCS7_C + +/** + * \def MBEDTLS_PKCS12_C + * + * Enable PKCS#12 PBE functions. + * Adds algorithms for parsing PKCS#8 encrypted private keys + * + * Module: library/pkcs12.c + * Caller: library/pkparse.c + * + * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_CIPHER_C and either + * MBEDTLS_MD_C or MBEDTLS_PSA_CRYPTO_C. + * + * \warning If using a hash that is only provided by PSA drivers, you must + * call psa_crypto_init() before doing any PKCS12 operations. + * + * This module enables PKCS#12 functions. + */ +#define MBEDTLS_PKCS12_C + +/** + * \def MBEDTLS_PLATFORM_C + * + * Enable the platform abstraction layer that allows you to re-assign + * functions like calloc(), free(), snprintf(), printf(), fprintf(), exit(). + * + * Enabling MBEDTLS_PLATFORM_C enables to use of MBEDTLS_PLATFORM_XXX_ALT + * or MBEDTLS_PLATFORM_XXX_MACRO directives, allowing the functions mentioned + * above to be specified at runtime or compile time respectively. + * + * \note This abstraction layer must be enabled on Windows (including MSYS2) + * as other modules rely on it for a fixed snprintf implementation. + * + * Module: library/platform.c + * Caller: Most other .c files + * + * This module enables abstraction of common (libc) functions. + */ +#define MBEDTLS_PLATFORM_C + +/** + * \def MBEDTLS_POLY1305_C + * + * Enable the Poly1305 MAC algorithm. + * + * Module: library/poly1305.c + * Caller: library/chachapoly.c + */ +#define MBEDTLS_POLY1305_C + +/** + * \def MBEDTLS_PSA_CRYPTO_C + * + * Enable the Platform Security Architecture cryptography API. + * + * Module: library/psa_crypto.c + * + * Requires: MBEDTLS_CIPHER_C, + * either MBEDTLS_CTR_DRBG_C and MBEDTLS_ENTROPY_C, + * or MBEDTLS_HMAC_DRBG_C and MBEDTLS_ENTROPY_C, + * or MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG. + * + */ +#define MBEDTLS_PSA_CRYPTO_C + +/** + * \def MBEDTLS_PSA_CRYPTO_SE_C + * + * Enable dynamic secure element support in the Platform Security Architecture + * cryptography API. + * + * \deprecated This feature is deprecated. Please switch to the PSA driver + * interface. + * + * Module: library/psa_crypto_se.c + * + * Requires: MBEDTLS_PSA_CRYPTO_C, MBEDTLS_PSA_CRYPTO_STORAGE_C + * + */ +//#define MBEDTLS_PSA_CRYPTO_SE_C + +/** + * \def MBEDTLS_PSA_CRYPTO_STORAGE_C + * + * Enable the Platform Security Architecture persistent key storage. + * + * Module: library/psa_crypto_storage.c + * + * Requires: MBEDTLS_PSA_CRYPTO_C, + * either MBEDTLS_PSA_ITS_FILE_C or a native implementation of + * the PSA ITS interface + */ +#define MBEDTLS_PSA_CRYPTO_STORAGE_C + +/** + * \def MBEDTLS_PSA_ITS_FILE_C + * + * Enable the emulation of the Platform Security Architecture + * Internal Trusted Storage (PSA ITS) over files. + * + * Module: library/psa_its_file.c + * + * Requires: MBEDTLS_FS_IO + */ +#define MBEDTLS_PSA_ITS_FILE_C + +/** + * \def MBEDTLS_RIPEMD160_C + * + * Enable the RIPEMD-160 hash algorithm. + * + * Module: library/ripemd160.c + * Caller: library/md.c + * + */ +#define MBEDTLS_RIPEMD160_C + +/** + * \def MBEDTLS_RSA_C + * + * Enable the RSA public-key cryptosystem. + * + * Module: library/rsa.c + * library/rsa_alt_helpers.c + * Caller: library/pk.c + * library/psa_crypto.c + * library/ssl_tls.c + * library/ssl*_client.c + * library/ssl*_server.c + * + * This module is used by the following key exchanges: + * RSA, DHE-RSA, ECDHE-RSA, RSA-PSK + * + * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C + */ +#define MBEDTLS_RSA_C + +/** + * \def MBEDTLS_SHA1_C + * + * Enable the SHA1 cryptographic hash algorithm. + * + * Module: library/sha1.c + * Caller: library/md.c + * library/psa_crypto_hash.c + * + * This module is required for TLS 1.2 depending on the handshake parameters, + * and for SHA1-signed certificates. + * + * \warning SHA-1 is considered a weak message digest and its use constitutes + * a security risk. If possible, we recommend avoiding dependencies + * on it, and considering stronger message digests instead. + * + */ +#define MBEDTLS_SHA1_C + +/** + * \def MBEDTLS_SHA224_C + * + * Enable the SHA-224 cryptographic hash algorithm. + * + * Module: library/sha256.c + * Caller: library/md.c + * library/ssl_cookie.c + * + * This module adds support for SHA-224. + */ +#define MBEDTLS_SHA224_C + +/** + * \def MBEDTLS_SHA256_C + * + * Enable the SHA-256 cryptographic hash algorithm. + * + * Module: library/sha256.c + * Caller: library/entropy.c + * library/md.c + * library/ssl_tls.c + * library/ssl*_client.c + * library/ssl*_server.c + * + * This module adds support for SHA-256. + * This module is required for the SSL/TLS 1.2 PRF function. + */ +#define MBEDTLS_SHA256_C + +/** + * \def MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT + * + * Enable acceleration of the SHA-256 and SHA-224 cryptographic hash algorithms + * with the ARMv8 cryptographic extensions if they are available at runtime. + * If not, the library will fall back to the C implementation. + * + * \note If MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT is defined when building + * for a non-Aarch64 build it will be silently ignored. + * + * \note Minimum compiler versions for this feature are Clang 4.0, + * armclang 6.6 or GCC 6.0. + * + * \note \c CFLAGS must be set to a minimum of \c -march=armv8-a+crypto for + * armclang <= 6.9 + * + * \warning MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT cannot be defined at the + * same time as MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY. + * + * Requires: MBEDTLS_SHA256_C. + * + * Module: library/sha256.c + * + * Uncomment to have the library check for the A64 SHA-256 crypto extensions + * and use them if available. + */ +//#define MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT + +/** + * \def MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY + * + * Enable acceleration of the SHA-256 and SHA-224 cryptographic hash algorithms + * with the ARMv8 cryptographic extensions, which must be available at runtime + * or else an illegal instruction fault will occur. + * + * \note This allows builds with a smaller code size than with + * MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT + * + * \note Minimum compiler versions for this feature are Clang 4.0, + * armclang 6.6 or GCC 6.0. + * + * \note \c CFLAGS must be set to a minimum of \c -march=armv8-a+crypto for + * armclang <= 6.9 + * + * \warning MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY cannot be defined at the same + * time as MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT. + * + * Requires: MBEDTLS_SHA256_C. + * + * Module: library/sha256.c + * + * Uncomment to have the library use the A64 SHA-256 crypto extensions + * unconditionally. + */ +//#define MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY + +/** + * \def MBEDTLS_SHA384_C + * + * Enable the SHA-384 cryptographic hash algorithm. + * + * Module: library/sha512.c + * Caller: library/md.c + * library/psa_crypto_hash.c + * library/ssl_tls.c + * library/ssl*_client.c + * library/ssl*_server.c + * + * Comment to disable SHA-384 + */ +#define MBEDTLS_SHA384_C + +/** + * \def MBEDTLS_SHA512_C + * + * Enable SHA-512 cryptographic hash algorithms. + * + * Module: library/sha512.c + * Caller: library/entropy.c + * library/md.c + * library/ssl_tls.c + * library/ssl_cookie.c + * + * This module adds support for SHA-512. + */ +#define MBEDTLS_SHA512_C + +/** + * \def MBEDTLS_SHA3_C + * + * Enable the SHA3 cryptographic hash algorithm. + * + * Module: library/sha3.c + * + * This module adds support for SHA3. + */ +#define MBEDTLS_SHA3_C + +/** + * \def MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT + * + * Enable acceleration of the SHA-512 and SHA-384 cryptographic hash algorithms + * with the ARMv8 cryptographic extensions if they are available at runtime. + * If not, the library will fall back to the C implementation. + * + * \note If MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT is defined when building + * for a non-Aarch64 build it will be silently ignored. + * + * \note Minimum compiler versions for this feature are Clang 7.0, + * armclang 6.9 or GCC 8.0. + * + * \note \c CFLAGS must be set to a minimum of \c -march=armv8.2-a+sha3 for + * armclang 6.9 + * + * \warning MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT cannot be defined at the + * same time as MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY. + * + * Requires: MBEDTLS_SHA512_C. + * + * Module: library/sha512.c + * + * Uncomment to have the library check for the A64 SHA-512 crypto extensions + * and use them if available. + */ +//#define MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT + +/** + * \def MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY + * + * Enable acceleration of the SHA-512 and SHA-384 cryptographic hash algorithms + * with the ARMv8 cryptographic extensions, which must be available at runtime + * or else an illegal instruction fault will occur. + * + * \note This allows builds with a smaller code size than with + * MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT + * + * \note Minimum compiler versions for this feature are Clang 7.0, + * armclang 6.9 or GCC 8.0. + * + * \note \c CFLAGS must be set to a minimum of \c -march=armv8.2-a+sha3 for + * armclang 6.9 + * + * \warning MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY cannot be defined at the same + * time as MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT. + * + * Requires: MBEDTLS_SHA512_C. + * + * Module: library/sha512.c + * + * Uncomment to have the library use the A64 SHA-512 crypto extensions + * unconditionally. + */ +//#define MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY + +/** + * \def MBEDTLS_SSL_CACHE_C + * + * Enable simple SSL cache implementation. + * + * Module: library/ssl_cache.c + * Caller: + * + * Requires: MBEDTLS_SSL_CACHE_C + */ +#define MBEDTLS_SSL_CACHE_C + +/** + * \def MBEDTLS_SSL_COOKIE_C + * + * Enable basic implementation of DTLS cookies for hello verification. + * + * Module: library/ssl_cookie.c + * Caller: + */ +#define MBEDTLS_SSL_COOKIE_C + +/** + * \def MBEDTLS_SSL_TICKET_C + * + * Enable an implementation of TLS server-side callbacks for session tickets. + * + * Module: library/ssl_ticket.c + * Caller: + * + * Requires: (MBEDTLS_CIPHER_C || MBEDTLS_USE_PSA_CRYPTO) && + * (MBEDTLS_GCM_C || MBEDTLS_CCM_C || MBEDTLS_CHACHAPOLY_C) + */ +#define MBEDTLS_SSL_TICKET_C + +/** + * \def MBEDTLS_SSL_CLI_C + * + * Enable the SSL/TLS client code. + * + * Module: library/ssl*_client.c + * Caller: + * + * Requires: MBEDTLS_SSL_TLS_C + * + * This module is required for SSL/TLS client support. + */ +#define MBEDTLS_SSL_CLI_C + +/** + * \def MBEDTLS_SSL_SRV_C + * + * Enable the SSL/TLS server code. + * + * Module: library/ssl*_server.c + * Caller: + * + * Requires: MBEDTLS_SSL_TLS_C + * + * This module is required for SSL/TLS server support. + */ +#define MBEDTLS_SSL_SRV_C + +/** + * \def MBEDTLS_SSL_TLS_C + * + * Enable the generic SSL/TLS code. + * + * Module: library/ssl_tls.c + * Caller: library/ssl*_client.c + * library/ssl*_server.c + * + * Requires: MBEDTLS_CIPHER_C, MBEDTLS_MD_C + * and at least one of the MBEDTLS_SSL_PROTO_XXX defines + * + * This module is required for SSL/TLS. + */ +#define MBEDTLS_SSL_TLS_C + +/** + * \def MBEDTLS_THREADING_C + * + * Enable the threading abstraction layer. + * By default Mbed TLS assumes it is used in a non-threaded environment or that + * contexts are not shared between threads. If you do intend to use contexts + * between threads, you will need to enable this layer to prevent race + * conditions. See also our Knowledge Base article about threading: + * https://mbed-tls.readthedocs.io/en/latest/kb/development/thread-safety-and-multi-threading + * + * Module: library/threading.c + * + * This allows different threading implementations (self-implemented or + * provided). + * + * You will have to enable either MBEDTLS_THREADING_ALT or + * MBEDTLS_THREADING_PTHREAD. + * + * Enable this layer to allow use of mutexes within Mbed TLS + */ +//#define MBEDTLS_THREADING_C + +/** + * \def MBEDTLS_TIMING_C + * + * Enable the semi-portable timing interface. + * + * \note The provided implementation only works on POSIX/Unix (including Linux, + * BSD and OS X) and Windows. On other platforms, you can either disable that + * module and provide your own implementations of the callbacks needed by + * \c mbedtls_ssl_set_timer_cb() for DTLS, or leave it enabled and provide + * your own implementation of the whole module by setting + * \c MBEDTLS_TIMING_ALT in the current file. + * + * \note The timing module will include time.h on suitable platforms + * regardless of the setting of MBEDTLS_HAVE_TIME, unless + * MBEDTLS_TIMING_ALT is used. See timing.c for more information. + * + * \note See also our Knowledge Base article about porting to a new + * environment: + * https://mbed-tls.readthedocs.io/en/latest/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS + * + * Module: library/timing.c + */ +#define MBEDTLS_TIMING_C + +/** + * \def MBEDTLS_VERSION_C + * + * Enable run-time version information. + * + * Module: library/version.c + * + * This module provides run-time version information. + */ +#define MBEDTLS_VERSION_C + +/** + * \def MBEDTLS_X509_USE_C + * + * Enable X.509 core for using certificates. + * + * Module: library/x509.c + * Caller: library/x509_crl.c + * library/x509_crt.c + * library/x509_csr.c + * + * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, MBEDTLS_PK_PARSE_C, + * (MBEDTLS_MD_C or MBEDTLS_USE_PSA_CRYPTO) + * + * \warning If building with MBEDTLS_USE_PSA_CRYPTO, you must call + * psa_crypto_init() before doing any X.509 operation. + * + * This module is required for the X.509 parsing modules. + */ +#define MBEDTLS_X509_USE_C + +/** + * \def MBEDTLS_X509_CRT_PARSE_C + * + * Enable X.509 certificate parsing. + * + * Module: library/x509_crt.c + * Caller: library/ssl_tls.c + * library/ssl*_client.c + * library/ssl*_server.c + * + * Requires: MBEDTLS_X509_USE_C + * + * This module is required for X.509 certificate parsing. + */ +#define MBEDTLS_X509_CRT_PARSE_C + +/** + * \def MBEDTLS_X509_CRL_PARSE_C + * + * Enable X.509 CRL parsing. + * + * Module: library/x509_crl.c + * Caller: library/x509_crt.c + * + * Requires: MBEDTLS_X509_USE_C + * + * This module is required for X.509 CRL parsing. + */ +#define MBEDTLS_X509_CRL_PARSE_C + +/** + * \def MBEDTLS_X509_CSR_PARSE_C + * + * Enable X.509 Certificate Signing Request (CSR) parsing. + * + * Module: library/x509_csr.c + * Caller: library/x509_crt_write.c + * + * Requires: MBEDTLS_X509_USE_C + * + * This module is used for reading X.509 certificate request. + */ +#define MBEDTLS_X509_CSR_PARSE_C + +/** + * \def MBEDTLS_X509_CREATE_C + * + * Enable X.509 core for creating certificates. + * + * Module: library/x509_create.c + * + * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, MBEDTLS_PK_PARSE_C, + * (MBEDTLS_MD_C or MBEDTLS_USE_PSA_CRYPTO) + * + * \warning If building with MBEDTLS_USE_PSA_CRYPTO, you must call + * psa_crypto_init() before doing any X.509 create operation. + * + * This module is the basis for creating X.509 certificates and CSRs. + */ +#define MBEDTLS_X509_CREATE_C + +/** + * \def MBEDTLS_X509_CRT_WRITE_C + * + * Enable creating X.509 certificates. + * + * Module: library/x509_crt_write.c + * + * Requires: MBEDTLS_X509_CREATE_C + * + * This module is required for X.509 certificate creation. + */ +#define MBEDTLS_X509_CRT_WRITE_C + +/** + * \def MBEDTLS_X509_CSR_WRITE_C + * + * Enable creating X.509 Certificate Signing Requests (CSR). + * + * Module: library/x509_csr_write.c + * + * Requires: MBEDTLS_X509_CREATE_C + * + * This module is required for X.509 certificate request writing. + */ +#define MBEDTLS_X509_CSR_WRITE_C + +/** \} name SECTION: Mbed TLS modules */ + +/** + * \name SECTION: General configuration options + * + * This section contains Mbed TLS build settings that are not associated + * with a particular module. + * + * \{ + */ + +/** + * \def MBEDTLS_CONFIG_FILE + * + * If defined, this is a header which will be included instead of + * `"mbedtls/mbedtls_config.h"`. + * This header file specifies the compile-time configuration of Mbed TLS. + * Unlike other configuration options, this one must be defined on the + * compiler command line: a definition in `mbedtls_config.h` would have + * no effect. + * + * This macro is expanded after an <tt>\#include</tt> directive. This is a popular but + * non-standard feature of the C language, so this feature is only available + * with compilers that perform macro expansion on an <tt>\#include</tt> line. + * + * The value of this symbol is typically a path in double quotes, either + * absolute or relative to a directory on the include search path. + */ +//#define MBEDTLS_CONFIG_FILE "mbedtls/mbedtls_config.h" + +/** + * \def MBEDTLS_USER_CONFIG_FILE + * + * If defined, this is a header which will be included after + * `"mbedtls/mbedtls_config.h"` or #MBEDTLS_CONFIG_FILE. + * This allows you to modify the default configuration, including the ability + * to undefine options that are enabled by default. + * + * This macro is expanded after an <tt>\#include</tt> directive. This is a popular but + * non-standard feature of the C language, so this feature is only available + * with compilers that perform macro expansion on an <tt>\#include</tt> line. + * + * The value of this symbol is typically a path in double quotes, either + * absolute or relative to a directory on the include search path. + */ +//#define MBEDTLS_USER_CONFIG_FILE "/dev/null" + +/** + * \def MBEDTLS_PSA_CRYPTO_CONFIG_FILE + * + * If defined, this is a header which will be included instead of + * `"psa/crypto_config.h"`. + * This header file specifies which cryptographic mechanisms are available + * through the PSA API when #MBEDTLS_PSA_CRYPTO_CONFIG is enabled, and + * is not used when #MBEDTLS_PSA_CRYPTO_CONFIG is disabled. + * + * This macro is expanded after an <tt>\#include</tt> directive. This is a popular but + * non-standard feature of the C language, so this feature is only available + * with compilers that perform macro expansion on an <tt>\#include</tt> line. + * + * The value of this symbol is typically a path in double quotes, either + * absolute or relative to a directory on the include search path. + */ +//#define MBEDTLS_PSA_CRYPTO_CONFIG_FILE "psa/crypto_config.h" + +/** + * \def MBEDTLS_PSA_CRYPTO_USER_CONFIG_FILE + * + * If defined, this is a header which will be included after + * `"psa/crypto_config.h"` or #MBEDTLS_PSA_CRYPTO_CONFIG_FILE. + * This allows you to modify the default configuration, including the ability + * to undefine options that are enabled by default. + * + * This macro is expanded after an <tt>\#include</tt> directive. This is a popular but + * non-standard feature of the C language, so this feature is only available + * with compilers that perform macro expansion on an <tt>\#include</tt> line. + * + * The value of this symbol is typically a path in double quotes, either + * absolute or relative to a directory on the include search path. + */ +//#define MBEDTLS_PSA_CRYPTO_USER_CONFIG_FILE "/dev/null" + +/** + * \def MBEDTLS_PSA_CRYPTO_PLATFORM_FILE + * + * If defined, this is a header which will be included instead of + * `"psa/crypto_platform.h"`. This file should declare the same identifiers + * as the one in Mbed TLS, but with definitions adapted to the platform on + * which the library code will run. + * + * \note The required content of this header can vary from one version of + * Mbed TLS to the next. Integrators who provide an alternative file + * should review the changes in the original file whenever they + * upgrade Mbed TLS. + * + * This macro is expanded after an <tt>\#include</tt> directive. This is a popular but + * non-standard feature of the C language, so this feature is only available + * with compilers that perform macro expansion on an <tt>\#include</tt> line. + * + * The value of this symbol is typically a path in double quotes, either + * absolute or relative to a directory on the include search path. + */ +//#define MBEDTLS_PSA_CRYPTO_PLATFORM_FILE "psa/crypto_platform_alt.h" + +/** + * \def MBEDTLS_PSA_CRYPTO_STRUCT_FILE + * + * If defined, this is a header which will be included instead of + * `"psa/crypto_struct.h"`. This file should declare the same identifiers + * as the one in Mbed TLS, but with definitions adapted to the environment + * in which the library code will run. The typical use for this feature + * is to provide alternative type definitions on the client side in + * client-server integrations of PSA crypto, where operation structures + * contain handles instead of cryptographic data. + * + * \note The required content of this header can vary from one version of + * Mbed TLS to the next. Integrators who provide an alternative file + * should review the changes in the original file whenever they + * upgrade Mbed TLS. + * + * This macro is expanded after an <tt>\#include</tt> directive. This is a popular but + * non-standard feature of the C language, so this feature is only available + * with compilers that perform macro expansion on an <tt>\#include</tt> line. + * + * The value of this symbol is typically a path in double quotes, either + * absolute or relative to a directory on the include search path. + */ +//#define MBEDTLS_PSA_CRYPTO_STRUCT_FILE "psa/crypto_struct_alt.h" + +/** \} name SECTION: General configuration options */ + +/** + * \name SECTION: Module configuration options + * + * This section allows for the setting of module specific sizes and + * configuration options. The default values are already present in the + * relevant header files and should suffice for the regular use cases. + * + * Our advice is to enable options and change their values here + * only if you have a good reason and know the consequences. + * \{ + */ +/* The Doxygen documentation here is used when a user comments out a + * setting and runs doxygen themselves. On the other hand, when we typeset + * the full documentation including disabled settings, the documentation + * in specific modules' header files is used if present. When editing this + * file, make sure that each option is documented in exactly one place, + * plus optionally a same-line Doxygen comment here if there is a Doxygen + * comment in the specific module. */ + +/* MPI / BIGNUM options */ +//#define MBEDTLS_MPI_WINDOW_SIZE 2 /**< Maximum window size used. */ +//#define MBEDTLS_MPI_MAX_SIZE 1024 /**< Maximum number of bytes for usable MPIs. */ + +/* CTR_DRBG options */ +//#define MBEDTLS_CTR_DRBG_ENTROPY_LEN 48 /**< Amount of entropy used per seed by default (48 with SHA-512, 32 with SHA-256) */ +//#define MBEDTLS_CTR_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */ +//#define MBEDTLS_CTR_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */ +//#define MBEDTLS_CTR_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */ +//#define MBEDTLS_CTR_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */ + +/* HMAC_DRBG options */ +//#define MBEDTLS_HMAC_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */ +//#define MBEDTLS_HMAC_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */ +//#define MBEDTLS_HMAC_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */ +//#define MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */ + +/* ECP options */ +//#define MBEDTLS_ECP_WINDOW_SIZE 4 /**< Maximum window size used */ +//#define MBEDTLS_ECP_FIXED_POINT_OPTIM 1 /**< Enable fixed-point speed-up */ + +/* Entropy options */ +//#define MBEDTLS_ENTROPY_MAX_SOURCES 20 /**< Maximum number of sources supported */ +//#define MBEDTLS_ENTROPY_MAX_GATHER 128 /**< Maximum amount requested from entropy sources */ +//#define MBEDTLS_ENTROPY_MIN_HARDWARE 32 /**< Default minimum number of bytes required for the hardware entropy source mbedtls_hardware_poll() before entropy is released */ + +/* Memory buffer allocator options */ +//#define MBEDTLS_MEMORY_ALIGN_MULTIPLE 4 /**< Align on multiples of this value */ + +/* Platform options */ +//#define MBEDTLS_PLATFORM_STD_MEM_HDR <stdlib.h> /**< Header to include if MBEDTLS_PLATFORM_NO_STD_FUNCTIONS is defined. Don't define if no header is needed. */ + +/** \def MBEDTLS_PLATFORM_STD_CALLOC + * + * Default allocator to use, can be undefined. + * It must initialize the allocated buffer memory to zeroes. + * The size of the buffer is the product of the two parameters. + * The calloc function returns either a null pointer or a pointer to the allocated space. + * If the product is 0, the function may either return NULL or a valid pointer to an array of size 0 which is a valid input to the deallocation function. + * An uninitialized #MBEDTLS_PLATFORM_STD_CALLOC always fails, returning a null pointer. + * See the description of #MBEDTLS_PLATFORM_MEMORY for more details. + * The corresponding deallocation function is #MBEDTLS_PLATFORM_STD_FREE. + */ +//#define MBEDTLS_PLATFORM_STD_CALLOC calloc + +/** \def MBEDTLS_PLATFORM_STD_FREE + * + * Default free to use, can be undefined. + * NULL is a valid parameter, and the function must do nothing. + * A non-null parameter will always be a pointer previously returned by #MBEDTLS_PLATFORM_STD_CALLOC and not yet freed. + * An uninitialized #MBEDTLS_PLATFORM_STD_FREE does not do anything. + * See the description of #MBEDTLS_PLATFORM_MEMORY for more details (same principles as for MBEDTLS_PLATFORM_STD_CALLOC apply). + */ +//#define MBEDTLS_PLATFORM_STD_FREE free +//#define MBEDTLS_PLATFORM_STD_SETBUF setbuf /**< Default setbuf to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_EXIT exit /**< Default exit to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_TIME time /**< Default time to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */ +//#define MBEDTLS_PLATFORM_STD_FPRINTF fprintf /**< Default fprintf to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_PRINTF printf /**< Default printf to use, can be undefined */ +/* Note: your snprintf must correctly zero-terminate the buffer! */ +//#define MBEDTLS_PLATFORM_STD_SNPRINTF snprintf /**< Default snprintf to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_EXIT_SUCCESS 0 /**< Default exit value to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_EXIT_FAILURE 1 /**< Default exit value to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_NV_SEED_READ mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */ +//#define MBEDTLS_PLATFORM_STD_NV_SEED_FILE "seedfile" /**< Seed file to read/write with default implementation */ + +/* To use the following function macros, MBEDTLS_PLATFORM_C must be enabled. */ +/* MBEDTLS_PLATFORM_XXX_MACRO and MBEDTLS_PLATFORM_XXX_ALT cannot both be defined */ +//#define MBEDTLS_PLATFORM_CALLOC_MACRO calloc /**< Default allocator macro to use, can be undefined. See MBEDTLS_PLATFORM_STD_CALLOC for requirements. */ +//#define MBEDTLS_PLATFORM_FREE_MACRO free /**< Default free macro to use, can be undefined. See MBEDTLS_PLATFORM_STD_FREE for requirements. */ +//#define MBEDTLS_PLATFORM_EXIT_MACRO exit /**< Default exit macro to use, can be undefined */ +//#define MBEDTLS_PLATFORM_SETBUF_MACRO setbuf /**< Default setbuf macro to use, can be undefined */ +//#define MBEDTLS_PLATFORM_TIME_MACRO time /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */ +//#define MBEDTLS_PLATFORM_TIME_TYPE_MACRO time_t /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */ +//#define MBEDTLS_PLATFORM_FPRINTF_MACRO fprintf /**< Default fprintf macro to use, can be undefined */ +//#define MBEDTLS_PLATFORM_PRINTF_MACRO printf /**< Default printf macro to use, can be undefined */ +/* Note: your snprintf must correctly zero-terminate the buffer! */ +//#define MBEDTLS_PLATFORM_SNPRINTF_MACRO snprintf /**< Default snprintf macro to use, can be undefined */ +//#define MBEDTLS_PLATFORM_VSNPRINTF_MACRO vsnprintf /**< Default vsnprintf macro to use, can be undefined */ +//#define MBEDTLS_PLATFORM_NV_SEED_READ_MACRO mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */ +//#define MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */ +//#define MBEDTLS_PLATFORM_MS_TIME_TYPE_MACRO int64_t //#define MBEDTLS_PLATFORM_MS_TIME_TYPE_MACRO int64_t /**< Default milliseconds time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled. It must be signed, and at least 64 bits. If it is changed from the default, MBEDTLS_PRINTF_MS_TIME must be updated to match.*/ +//#define MBEDTLS_PRINTF_MS_TIME PRId64 /**< Default fmt for printf. That's avoid compiler warning if mbedtls_ms_time_t is redefined */ + +/** \def MBEDTLS_CHECK_RETURN + * + * This macro is used at the beginning of the declaration of a function + * to indicate that its return value should be checked. It should + * instruct the compiler to emit a warning or an error if the function + * is called without checking its return value. + * + * There is a default implementation for popular compilers in platform_util.h. + * You can override the default implementation by defining your own here. + * + * If the implementation here is empty, this will effectively disable the + * checking of functions' return values. + */ +//#define MBEDTLS_CHECK_RETURN __attribute__((__warn_unused_result__)) + +/** \def MBEDTLS_IGNORE_RETURN + * + * This macro requires one argument, which should be a C function call. + * If that function call would cause a #MBEDTLS_CHECK_RETURN warning, this + * warning is suppressed. + */ +//#define MBEDTLS_IGNORE_RETURN( result ) ((void) !(result)) + +/* PSA options */ +/** + * Use HMAC_DRBG with the specified hash algorithm for HMAC_DRBG for the + * PSA crypto subsystem. + * + * If this option is unset: + * - If CTR_DRBG is available, the PSA subsystem uses it rather than HMAC_DRBG. + * - Otherwise, the PSA subsystem uses HMAC_DRBG with either + * #MBEDTLS_MD_SHA512 or #MBEDTLS_MD_SHA256 based on availability and + * on unspecified heuristics. + */ +//#define MBEDTLS_PSA_HMAC_DRBG_MD_TYPE MBEDTLS_MD_SHA256 + +/** \def MBEDTLS_PSA_KEY_SLOT_COUNT + * Restrict the PSA library to supporting a maximum amount of simultaneously + * loaded keys. A loaded key is a key stored by the PSA Crypto core as a + * volatile key, or a persistent key which is loaded temporarily by the + * library as part of a crypto operation in flight. + * + * If this option is unset, the library will fall back to a default value of + * 32 keys. + */ +//#define MBEDTLS_PSA_KEY_SLOT_COUNT 32 + +/* RSA OPTIONS */ +//#define MBEDTLS_RSA_GEN_KEY_MIN_BITS 1024 /**< Minimum RSA key size that can be generated in bits (Minimum possible value is 128 bits) */ + +/* SSL Cache options */ +//#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT 86400 /**< 1 day */ +//#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES 50 /**< Maximum entries in cache */ + +/* SSL options */ + +/** \def MBEDTLS_SSL_IN_CONTENT_LEN + * + * Maximum length (in bytes) of incoming plaintext fragments. + * + * This determines the size of the incoming TLS I/O buffer in such a way + * that it is capable of holding the specified amount of plaintext data, + * regardless of the protection mechanism used. + * + * \note When using a value less than the default of 16KB on the client, it is + * recommended to use the Maximum Fragment Length (MFL) extension to + * inform the server about this limitation. On the server, there + * is no supported, standardized way of informing the client about + * restriction on the maximum size of incoming messages, and unless + * the limitation has been communicated by other means, it is recommended + * to only change the outgoing buffer size #MBEDTLS_SSL_OUT_CONTENT_LEN + * while keeping the default value of 16KB for the incoming buffer. + * + * Uncomment to set the maximum plaintext size of the incoming I/O buffer. + */ +//#define MBEDTLS_SSL_IN_CONTENT_LEN 16384 + +/** \def MBEDTLS_SSL_CID_IN_LEN_MAX + * + * The maximum length of CIDs used for incoming DTLS messages. + * + */ +//#define MBEDTLS_SSL_CID_IN_LEN_MAX 32 + +/** \def MBEDTLS_SSL_CID_OUT_LEN_MAX + * + * The maximum length of CIDs used for outgoing DTLS messages. + * + */ +//#define MBEDTLS_SSL_CID_OUT_LEN_MAX 32 + +/** \def MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY + * + * This option controls the use of record plaintext padding + * in TLS 1.3 and when using the Connection ID extension in DTLS 1.2. + * + * The padding will always be chosen so that the length of the + * padded plaintext is a multiple of the value of this option. + * + * Note: A value of \c 1 means that no padding will be used + * for outgoing records. + * + * Note: On systems lacking division instructions, + * a power of two should be preferred. + */ +//#define MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY 16 + +/** \def MBEDTLS_SSL_OUT_CONTENT_LEN + * + * Maximum length (in bytes) of outgoing plaintext fragments. + * + * This determines the size of the outgoing TLS I/O buffer in such a way + * that it is capable of holding the specified amount of plaintext data, + * regardless of the protection mechanism used. + * + * It is possible to save RAM by setting a smaller outward buffer, while keeping + * the default inward 16384 byte buffer to conform to the TLS specification. + * + * The minimum required outward buffer size is determined by the handshake + * protocol's usage. Handshaking will fail if the outward buffer is too small. + * The specific size requirement depends on the configured ciphers and any + * certificate data which is sent during the handshake. + * + * Uncomment to set the maximum plaintext size of the outgoing I/O buffer. + */ +//#define MBEDTLS_SSL_OUT_CONTENT_LEN 16384 + +/** \def MBEDTLS_SSL_DTLS_MAX_BUFFERING + * + * Maximum number of heap-allocated bytes for the purpose of + * DTLS handshake message reassembly and future message buffering. + * + * This should be at least 9/8 * MBEDTLS_SSL_IN_CONTENT_LEN + * to account for a reassembled handshake message of maximum size, + * together with its reassembly bitmap. + * + * A value of 2 * MBEDTLS_SSL_IN_CONTENT_LEN (32768 by default) + * should be sufficient for all practical situations as it allows + * to reassembly a large handshake message (such as a certificate) + * while buffering multiple smaller handshake messages. + * + */ +//#define MBEDTLS_SSL_DTLS_MAX_BUFFERING 32768 + +//#define MBEDTLS_PSK_MAX_LEN 32 /**< Max size of TLS pre-shared keys, in bytes (default 256 or 384 bits) */ +//#define MBEDTLS_SSL_COOKIE_TIMEOUT 60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */ + +/** + * Complete list of ciphersuites to use, in order of preference. + * + * \warning No dependency checking is done on that field! This option can only + * be used to restrict the set of available ciphersuites. It is your + * responsibility to make sure the needed modules are active. + * + * Use this to save a few hundred bytes of ROM (default ordering of all + * available ciphersuites) and a few to a few hundred bytes of RAM. + * + * The value below is only an example, not the default. + */ +//#define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 + +/** + * \def MBEDTLS_SSL_MAX_EARLY_DATA_SIZE + * + * The default maximum amount of 0-RTT data. See the documentation of + * \c mbedtls_ssl_tls13_conf_max_early_data_size() for more information. + * + * It must be positive and smaller than UINT32_MAX. + * + * If MBEDTLS_SSL_EARLY_DATA is not defined, this default value does not + * have any impact on the build. + * + * This feature is experimental, not completed and thus not ready for + * production. + * + */ +//#define MBEDTLS_SSL_MAX_EARLY_DATA_SIZE 1024 + +/** + * \def MBEDTLS_SSL_TLS1_3_TICKET_AGE_TOLERANCE + * + * Maximum time difference in milliseconds tolerated between the age of a + * ticket from the server and client point of view. + * From the client point of view, the age of a ticket is the time difference + * between the time when the client proposes to the server to use the ticket + * (time of writing of the Pre-Shared Key Extension including the ticket) and + * the time the client received the ticket from the server. + * From the server point of view, the age of a ticket is the time difference + * between the time when the server receives a proposition from the client + * to use the ticket and the time when the ticket was created by the server. + * The server age is expected to be always greater than the client one and + * MBEDTLS_SSL_TLS1_3_TICKET_AGE_TOLERANCE defines the + * maximum difference tolerated for the server to accept the ticket. + * This is not used in TLS 1.2. + * + */ +//#define MBEDTLS_SSL_TLS1_3_TICKET_AGE_TOLERANCE 6000 + +/** + * \def MBEDTLS_SSL_TLS1_3_TICKET_NONCE_LENGTH + * + * Size in bytes of a ticket nonce. This is not used in TLS 1.2. + * + * This must be less than 256. + */ +//#define MBEDTLS_SSL_TLS1_3_TICKET_NONCE_LENGTH 32 + +/** + * \def MBEDTLS_SSL_TLS1_3_DEFAULT_NEW_SESSION_TICKETS + * + * Default number of NewSessionTicket messages to be sent by a TLS 1.3 server + * after handshake completion. This is not used in TLS 1.2 and relevant only if + * the MBEDTLS_SSL_SESSION_TICKETS option is enabled. + * + */ +//#define MBEDTLS_SSL_TLS1_3_DEFAULT_NEW_SESSION_TICKETS 1 + +/* X509 options */ +//#define MBEDTLS_X509_MAX_INTERMEDIATE_CA 8 /**< Maximum number of intermediate CAs in a verification chain. */ +//#define MBEDTLS_X509_MAX_FILE_PATH_LEN 512 /**< Maximum length of a path/filename string in bytes including the null terminator character ('\0'). */ + +/** \} name SECTION: Module configuration options */ diff --git a/include/mbedtls/md.h b/include/mbedtls/md.h new file mode 100644 index 0000000..ff7b133 --- /dev/null +++ b/include/mbedtls/md.h @@ -0,0 +1,640 @@ +/** + * \file md.h + * + * \brief This file contains the generic functions for message-digest + * (hashing) and HMAC. + * + * \author Adriaan de Jong <dejong@fox-it.com> + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_MD_H +#define MBEDTLS_MD_H +#include "mbedtls/private_access.h" + +#include <stddef.h> + +#include "mbedtls/build_info.h" +#include "mbedtls/platform_util.h" + +#if defined(MBEDTLS_MD_LIGHT) + +/* + * - MBEDTLS_MD_CAN_xxx is defined if the md module can perform xxx. + * - MBEDTLS_MD_xxx_VIA_PSA is defined if the md module may perform xxx via PSA + * (see below). + * - MBEDTLS_MD_SOME_PSA is defined if at least one algorithm may be performed + * via PSA (see below). + * - MBEDTLS_MD_SOME_LEGACY is defined if at least one algorithm may be performed + * via a direct legacy call (see below). + * + * The md module performs an algorithm via PSA if there is a PSA hash + * accelerator and the PSA driver subsytem is initialized at the time the + * operation is started, and makes a direct legacy call otherwise. + */ + +/* PSA accelerated implementations */ +#if defined(MBEDTLS_PSA_CRYPTO_C) +#if defined(MBEDTLS_PSA_ACCEL_ALG_MD5) +#define MBEDTLS_MD_CAN_MD5 +#define MBEDTLS_MD_MD5_VIA_PSA +#define MBEDTLS_MD_SOME_PSA +#endif +#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA_1) +#define MBEDTLS_MD_CAN_SHA1 +#define MBEDTLS_MD_SHA1_VIA_PSA +#define MBEDTLS_MD_SOME_PSA +#endif +#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA_224) +#define MBEDTLS_MD_CAN_SHA224 +#define MBEDTLS_MD_SHA224_VIA_PSA +#define MBEDTLS_MD_SOME_PSA +#endif +#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA_256) +#define MBEDTLS_MD_CAN_SHA256 +#define MBEDTLS_MD_SHA256_VIA_PSA +#define MBEDTLS_MD_SOME_PSA +#endif +#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA_384) +#define MBEDTLS_MD_CAN_SHA384 +#define MBEDTLS_MD_SHA384_VIA_PSA +#define MBEDTLS_MD_SOME_PSA +#endif +#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA_512) +#define MBEDTLS_MD_CAN_SHA512 +#define MBEDTLS_MD_SHA512_VIA_PSA +#define MBEDTLS_MD_SOME_PSA +#endif +#if defined(MBEDTLS_PSA_ACCEL_ALG_RIPEMD160) +#define MBEDTLS_MD_CAN_RIPEMD160 +#define MBEDTLS_MD_RIPEMD160_VIA_PSA +#define MBEDTLS_MD_SOME_PSA +#endif +#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA3_224) +#define MBEDTLS_MD_CAN_SHA3_224 +#define MBEDTLS_MD_SHA3_224_VIA_PSA +#define MBEDTLS_MD_SOME_PSA +#endif +#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA3_256) +#define MBEDTLS_MD_CAN_SHA3_256 +#define MBEDTLS_MD_SHA3_256_VIA_PSA +#define MBEDTLS_MD_SOME_PSA +#endif +#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA3_384) +#define MBEDTLS_MD_CAN_SHA3_384 +#define MBEDTLS_MD_SHA3_384_VIA_PSA +#define MBEDTLS_MD_SOME_PSA +#endif +#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA3_512) +#define MBEDTLS_MD_CAN_SHA3_512 +#define MBEDTLS_MD_SHA3_512_VIA_PSA +#define MBEDTLS_MD_SOME_PSA +#endif +#endif /* MBEDTLS_PSA_CRYPTO_C */ + +/* Built-in implementations */ +#if defined(MBEDTLS_MD5_C) +#define MBEDTLS_MD_CAN_MD5 +#define MBEDTLS_MD_SOME_LEGACY +#endif +#if defined(MBEDTLS_SHA1_C) +#define MBEDTLS_MD_CAN_SHA1 +#define MBEDTLS_MD_SOME_LEGACY +#endif +#if defined(MBEDTLS_SHA224_C) +#define MBEDTLS_MD_CAN_SHA224 +#define MBEDTLS_MD_SOME_LEGACY +#endif +#if defined(MBEDTLS_SHA256_C) +#define MBEDTLS_MD_CAN_SHA256 +#define MBEDTLS_MD_SOME_LEGACY +#endif +#if defined(MBEDTLS_SHA384_C) +#define MBEDTLS_MD_CAN_SHA384 +#define MBEDTLS_MD_SOME_LEGACY +#endif +#if defined(MBEDTLS_SHA512_C) +#define MBEDTLS_MD_CAN_SHA512 +#define MBEDTLS_MD_SOME_LEGACY +#endif +#if defined(MBEDTLS_SHA3_C) +#define MBEDTLS_MD_CAN_SHA3_224 +#define MBEDTLS_MD_CAN_SHA3_256 +#define MBEDTLS_MD_CAN_SHA3_384 +#define MBEDTLS_MD_CAN_SHA3_512 +#define MBEDTLS_MD_SOME_LEGACY +#endif +#if defined(MBEDTLS_RIPEMD160_C) +#define MBEDTLS_MD_CAN_RIPEMD160 +#define MBEDTLS_MD_SOME_LEGACY +#endif + +#endif /* MBEDTLS_MD_LIGHT */ + +/** The selected feature is not available. */ +#define MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE -0x5080 +/** Bad input parameters to function. */ +#define MBEDTLS_ERR_MD_BAD_INPUT_DATA -0x5100 +/** Failed to allocate memory. */ +#define MBEDTLS_ERR_MD_ALLOC_FAILED -0x5180 +/** Opening or reading of file failed. */ +#define MBEDTLS_ERR_MD_FILE_IO_ERROR -0x5200 + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Supported message digests. + * + * \warning MD5 and SHA-1 are considered weak message digests and + * their use constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +/* Note: these are aligned with the definitions of PSA_ALG_ macros for hashes, + * in order to enable an efficient implementation of conversion functions. + * This is tested by md_to_from_psa() in test_suite_md. */ +typedef enum { + MBEDTLS_MD_NONE=0, /**< None. */ + MBEDTLS_MD_MD5=0x03, /**< The MD5 message digest. */ + MBEDTLS_MD_RIPEMD160=0x04, /**< The RIPEMD-160 message digest. */ + MBEDTLS_MD_SHA1=0x05, /**< The SHA-1 message digest. */ + MBEDTLS_MD_SHA224=0x08, /**< The SHA-224 message digest. */ + MBEDTLS_MD_SHA256=0x09, /**< The SHA-256 message digest. */ + MBEDTLS_MD_SHA384=0x0a, /**< The SHA-384 message digest. */ + MBEDTLS_MD_SHA512=0x0b, /**< The SHA-512 message digest. */ + MBEDTLS_MD_SHA3_224=0x10, /**< The SHA3-224 message digest. */ + MBEDTLS_MD_SHA3_256=0x11, /**< The SHA3-256 message digest. */ + MBEDTLS_MD_SHA3_384=0x12, /**< The SHA3-384 message digest. */ + MBEDTLS_MD_SHA3_512=0x13, /**< The SHA3-512 message digest. */ +} mbedtls_md_type_t; + +/* Note: this should always be >= PSA_HASH_MAX_SIZE + * in all builds with both CRYPTO_C and MD_LIGHT. + * + * This is to make things easier for modules such as TLS that may define a + * buffer size using MD_MAX_SIZE in a part of the code that's common to PSA + * and legacy, then assume the buffer's size is PSA_HASH_MAX_SIZE in another + * part of the code based on PSA. + */ +#if defined(MBEDTLS_MD_CAN_SHA512) || defined(MBEDTLS_MD_CAN_SHA3_512) +#define MBEDTLS_MD_MAX_SIZE 64 /* longest known is SHA512 */ +#elif defined(MBEDTLS_MD_CAN_SHA384) || defined(MBEDTLS_MD_CAN_SHA3_384) +#define MBEDTLS_MD_MAX_SIZE 48 /* longest known is SHA384 */ +#elif defined(MBEDTLS_MD_CAN_SHA256) || defined(MBEDTLS_MD_CAN_SHA3_256) +#define MBEDTLS_MD_MAX_SIZE 32 /* longest known is SHA256 */ +#elif defined(MBEDTLS_MD_CAN_SHA224) || defined(MBEDTLS_MD_CAN_SHA3_224) +#define MBEDTLS_MD_MAX_SIZE 28 /* longest known is SHA224 */ +#else +#define MBEDTLS_MD_MAX_SIZE 20 /* longest known is SHA1 or RIPE MD-160 + or smaller (MD5 and earlier) */ +#endif + +#if defined(MBEDTLS_MD_CAN_SHA3_224) +#define MBEDTLS_MD_MAX_BLOCK_SIZE 144 /* the longest known is SHA3-224 */ +#elif defined(MBEDTLS_MD_CAN_SHA3_256) +#define MBEDTLS_MD_MAX_BLOCK_SIZE 136 +#elif defined(MBEDTLS_MD_CAN_SHA512) || defined(MBEDTLS_MD_CAN_SHA384) +#define MBEDTLS_MD_MAX_BLOCK_SIZE 128 +#elif defined(MBEDTLS_MD_CAN_SHA3_384) +#define MBEDTLS_MD_MAX_BLOCK_SIZE 104 +#elif defined(MBEDTLS_MD_CAN_SHA3_512) +#define MBEDTLS_MD_MAX_BLOCK_SIZE 72 +#else +#define MBEDTLS_MD_MAX_BLOCK_SIZE 64 +#endif + +/** + * Opaque struct. + * + * Constructed using either #mbedtls_md_info_from_string or + * #mbedtls_md_info_from_type. + * + * Fields can be accessed with #mbedtls_md_get_size, + * #mbedtls_md_get_type and #mbedtls_md_get_name. + */ +/* Defined internally in library/md_wrap.h. */ +typedef struct mbedtls_md_info_t mbedtls_md_info_t; + +/** + * Used internally to indicate whether a context uses legacy or PSA. + * + * Internal use only. + */ +typedef enum { + MBEDTLS_MD_ENGINE_LEGACY = 0, + MBEDTLS_MD_ENGINE_PSA, +} mbedtls_md_engine_t; + +/** + * The generic message-digest context. + */ +typedef struct mbedtls_md_context_t { + /** Information about the associated message digest. */ + const mbedtls_md_info_t *MBEDTLS_PRIVATE(md_info); + +#if defined(MBEDTLS_MD_SOME_PSA) + /** Are hash operations dispatched to PSA or legacy? */ + mbedtls_md_engine_t MBEDTLS_PRIVATE(engine); +#endif + + /** The digest-specific context (legacy) or the PSA operation. */ + void *MBEDTLS_PRIVATE(md_ctx); + +#if defined(MBEDTLS_MD_C) + /** The HMAC part of the context. */ + void *MBEDTLS_PRIVATE(hmac_ctx); +#endif +} mbedtls_md_context_t; + +/** + * \brief This function returns the message-digest information + * associated with the given digest type. + * + * \param md_type The type of digest to search for. + * + * \return The message-digest information associated with \p md_type. + * \return NULL if the associated message-digest information is not found. + */ +const mbedtls_md_info_t *mbedtls_md_info_from_type(mbedtls_md_type_t md_type); + +/** + * \brief This function initializes a message-digest context without + * binding it to a particular message-digest algorithm. + * + * This function should always be called first. It prepares the + * context for mbedtls_md_setup() for binding it to a + * message-digest algorithm. + */ +void mbedtls_md_init(mbedtls_md_context_t *ctx); + +/** + * \brief This function clears the internal structure of \p ctx and + * frees any embedded internal structure, but does not free + * \p ctx itself. + * + * If you have called mbedtls_md_setup() on \p ctx, you must + * call mbedtls_md_free() when you are no longer using the + * context. + * Calling this function if you have previously + * called mbedtls_md_init() and nothing else is optional. + * You must not call this function if you have not called + * mbedtls_md_init(). + */ +void mbedtls_md_free(mbedtls_md_context_t *ctx); + + +/** + * \brief This function selects the message digest algorithm to use, + * and allocates internal structures. + * + * It should be called after mbedtls_md_init() or + * mbedtls_md_free(). Makes it necessary to call + * mbedtls_md_free() later. + * + * \param ctx The context to set up. + * \param md_info The information structure of the message-digest algorithm + * to use. + * \param hmac Defines if HMAC is used. 0: HMAC is not used (saves some memory), + * or non-zero: HMAC is used with this context. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification + * failure. + * \return #MBEDTLS_ERR_MD_ALLOC_FAILED on memory-allocation failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_md_setup(mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac); + +/** + * \brief This function clones the state of a message-digest + * context. + * + * \note You must call mbedtls_md_setup() on \c dst before calling + * this function. + * + * \note The two contexts must have the same type, + * for example, both are SHA-256. + * + * \warning This function clones the message-digest state, not the + * HMAC state. + * + * \param dst The destination context. + * \param src The context to be cloned. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification failure. + * \return #MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE if both contexts are + * not using the same engine. This can be avoided by moving + * the call to psa_crypto_init() before the first call to + * mbedtls_md_setup(). + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_md_clone(mbedtls_md_context_t *dst, + const mbedtls_md_context_t *src); + +/** + * \brief This function extracts the message-digest size from the + * message-digest information structure. + * + * \param md_info The information structure of the message-digest algorithm + * to use. + * + * \return The size of the message-digest output in Bytes. + */ +unsigned char mbedtls_md_get_size(const mbedtls_md_info_t *md_info); + +/** + * \brief This function gives the message-digest size associated to + * message-digest type. + * + * \param md_type The message-digest type. + * + * \return The size of the message-digest output in Bytes, + * or 0 if the message-digest type is not known. + */ +static inline unsigned char mbedtls_md_get_size_from_type(mbedtls_md_type_t md_type) +{ + return mbedtls_md_get_size(mbedtls_md_info_from_type(md_type)); +} + +/** + * \brief This function extracts the message-digest type from the + * message-digest information structure. + * + * \param md_info The information structure of the message-digest algorithm + * to use. + * + * \return The type of the message digest. + */ +mbedtls_md_type_t mbedtls_md_get_type(const mbedtls_md_info_t *md_info); + +/** + * \brief This function starts a message-digest computation. + * + * You must call this function after setting up the context + * with mbedtls_md_setup(), and before passing data with + * mbedtls_md_update(). + * + * \param ctx The generic message-digest context. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification + * failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_md_starts(mbedtls_md_context_t *ctx); + +/** + * \brief This function feeds an input buffer into an ongoing + * message-digest computation. + * + * You must call mbedtls_md_starts() before calling this + * function. You may call this function multiple times. + * Afterwards, call mbedtls_md_finish(). + * + * \param ctx The generic message-digest context. + * \param input The buffer holding the input data. + * \param ilen The length of the input data. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification + * failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_md_update(mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen); + +/** + * \brief This function finishes the digest operation, + * and writes the result to the output buffer. + * + * Call this function after a call to mbedtls_md_starts(), + * followed by any number of calls to mbedtls_md_update(). + * Afterwards, you may either clear the context with + * mbedtls_md_free(), or call mbedtls_md_starts() to reuse + * the context for another digest operation with the same + * algorithm. + * + * \param ctx The generic message-digest context. + * \param output The buffer for the generic message-digest checksum result. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification + * failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_md_finish(mbedtls_md_context_t *ctx, unsigned char *output); + +/** + * \brief This function calculates the message-digest of a buffer, + * with respect to a configurable message-digest algorithm + * in a single call. + * + * The result is calculated as + * Output = message_digest(input buffer). + * + * \param md_info The information structure of the message-digest algorithm + * to use. + * \param input The buffer holding the data. + * \param ilen The length of the input data. + * \param output The generic message-digest checksum result. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification + * failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_md(const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen, + unsigned char *output); + +/** + * \brief This function returns the list of digests supported by the + * generic digest module. + * + * \note The list starts with the strongest available hashes. + * + * \return A statically allocated array of digests. Each element + * in the returned list is an integer belonging to the + * message-digest enumeration #mbedtls_md_type_t. + * The last entry is 0. + */ +const int *mbedtls_md_list(void); + +/** + * \brief This function returns the message-digest information + * associated with the given digest name. + * + * \param md_name The name of the digest to search for. + * + * \return The message-digest information associated with \p md_name. + * \return NULL if the associated message-digest information is not found. + */ +const mbedtls_md_info_t *mbedtls_md_info_from_string(const char *md_name); + +/** + * \brief This function returns the name of the message digest for + * the message-digest information structure given. + * + * \param md_info The information structure of the message-digest algorithm + * to use. + * + * \return The name of the message digest. + */ +const char *mbedtls_md_get_name(const mbedtls_md_info_t *md_info); + +/** + * \brief This function returns the message-digest information + * from the given context. + * + * \param ctx The context from which to extract the information. + * This must be initialized (or \c NULL). + * + * \return The message-digest information associated with \p ctx. + * \return \c NULL if \p ctx is \c NULL. + */ +const mbedtls_md_info_t *mbedtls_md_info_from_ctx( + const mbedtls_md_context_t *ctx); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief This function calculates the message-digest checksum + * result of the contents of the provided file. + * + * The result is calculated as + * Output = message_digest(file contents). + * + * \param md_info The information structure of the message-digest algorithm + * to use. + * \param path The input file name. + * \param output The generic message-digest checksum result. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_FILE_IO_ERROR on an I/O error accessing + * the file pointed by \p path. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA if \p md_info was NULL. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_md_file(const mbedtls_md_info_t *md_info, const char *path, + unsigned char *output); +#endif /* MBEDTLS_FS_IO */ + +/** + * \brief This function sets the HMAC key and prepares to + * authenticate a new message. + * + * Call this function after mbedtls_md_setup(), to use + * the MD context for an HMAC calculation, then call + * mbedtls_md_hmac_update() to provide the input data, and + * mbedtls_md_hmac_finish() to get the HMAC value. + * + * \param ctx The message digest context containing an embedded HMAC + * context. + * \param key The HMAC secret key. + * \param keylen The length of the HMAC key in Bytes. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification + * failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_md_hmac_starts(mbedtls_md_context_t *ctx, const unsigned char *key, + size_t keylen); + +/** + * \brief This function feeds an input buffer into an ongoing HMAC + * computation. + * + * Call mbedtls_md_hmac_starts() or mbedtls_md_hmac_reset() + * before calling this function. + * You may call this function multiple times to pass the + * input piecewise. + * Afterwards, call mbedtls_md_hmac_finish(). + * + * \param ctx The message digest context containing an embedded HMAC + * context. + * \param input The buffer holding the input data. + * \param ilen The length of the input data. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification + * failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_md_hmac_update(mbedtls_md_context_t *ctx, const unsigned char *input, + size_t ilen); + +/** + * \brief This function finishes the HMAC operation, and writes + * the result to the output buffer. + * + * Call this function after mbedtls_md_hmac_starts() and + * mbedtls_md_hmac_update() to get the HMAC value. Afterwards + * you may either call mbedtls_md_free() to clear the context, + * or call mbedtls_md_hmac_reset() to reuse the context with + * the same HMAC key. + * + * \param ctx The message digest context containing an embedded HMAC + * context. + * \param output The generic HMAC checksum result. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification + * failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_md_hmac_finish(mbedtls_md_context_t *ctx, unsigned char *output); + +/** + * \brief This function prepares to authenticate a new message with + * the same key as the previous HMAC operation. + * + * You may call this function after mbedtls_md_hmac_finish(). + * Afterwards call mbedtls_md_hmac_update() to pass the new + * input. + * + * \param ctx The message digest context containing an embedded HMAC + * context. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification + * failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_md_hmac_reset(mbedtls_md_context_t *ctx); + +/** + * \brief This function calculates the full generic HMAC + * on the input buffer with the provided key. + * + * The function allocates the context, performs the + * calculation, and frees the context. + * + * The HMAC result is calculated as + * output = generic HMAC(hmac key, input buffer). + * + * \param md_info The information structure of the message-digest algorithm + * to use. + * \param key The HMAC secret key. + * \param keylen The length of the HMAC secret key in Bytes. + * \param input The buffer holding the input data. + * \param ilen The length of the input data. + * \param output The generic HMAC result. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification + * failure. + */ +MBEDTLS_CHECK_RETURN_TYPICAL +int mbedtls_md_hmac(const mbedtls_md_info_t *md_info, const unsigned char *key, size_t keylen, + const unsigned char *input, size_t ilen, + unsigned char *output); + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_MD_H */ diff --git a/include/mbedtls/md5.h b/include/mbedtls/md5.h new file mode 100644 index 0000000..6bf0754 --- /dev/null +++ b/include/mbedtls/md5.h @@ -0,0 +1,190 @@ +/** + * \file md5.h + * + * \brief MD5 message digest algorithm (hash function) + * + * \warning MD5 is considered a weak message digest and its use constitutes a + * security risk. We recommend considering stronger message + * digests instead. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_MD5_H +#define MBEDTLS_MD5_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stddef.h> +#include <stdint.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_MD5_ALT) +// Regular implementation +// + +/** + * \brief MD5 context structure + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +typedef struct mbedtls_md5_context { + uint32_t MBEDTLS_PRIVATE(total)[2]; /*!< number of bytes processed */ + uint32_t MBEDTLS_PRIVATE(state)[4]; /*!< intermediate digest state */ + unsigned char MBEDTLS_PRIVATE(buffer)[64]; /*!< data block being processed */ +} +mbedtls_md5_context; + +#else /* MBEDTLS_MD5_ALT */ +#include "md5_alt.h" +#endif /* MBEDTLS_MD5_ALT */ + +/** + * \brief Initialize MD5 context + * + * \param ctx MD5 context to be initialized + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +void mbedtls_md5_init(mbedtls_md5_context *ctx); + +/** + * \brief Clear MD5 context + * + * \param ctx MD5 context to be cleared + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +void mbedtls_md5_free(mbedtls_md5_context *ctx); + +/** + * \brief Clone (the state of) an MD5 context + * + * \param dst The destination context + * \param src The context to be cloned + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +void mbedtls_md5_clone(mbedtls_md5_context *dst, + const mbedtls_md5_context *src); + +/** + * \brief MD5 context setup + * + * \param ctx context to be initialized + * + * \return 0 if successful + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +int mbedtls_md5_starts(mbedtls_md5_context *ctx); + +/** + * \brief MD5 process buffer + * + * \param ctx MD5 context + * \param input buffer holding the data + * \param ilen length of the input data + * + * \return 0 if successful + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +int mbedtls_md5_update(mbedtls_md5_context *ctx, + const unsigned char *input, + size_t ilen); + +/** + * \brief MD5 final digest + * + * \param ctx MD5 context + * \param output MD5 checksum result + * + * \return 0 if successful + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +int mbedtls_md5_finish(mbedtls_md5_context *ctx, + unsigned char output[16]); + +/** + * \brief MD5 process data block (internal use only) + * + * \param ctx MD5 context + * \param data buffer holding one block of data + * + * \return 0 if successful + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +int mbedtls_internal_md5_process(mbedtls_md5_context *ctx, + const unsigned char data[64]); + +/** + * \brief Output = MD5( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output MD5 checksum result + * + * \return 0 if successful + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +int mbedtls_md5(const unsigned char *input, + size_t ilen, + unsigned char output[16]); + +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +int mbedtls_md5_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_md5.h */ diff --git a/include/mbedtls/memory_buffer_alloc.h b/include/mbedtls/memory_buffer_alloc.h new file mode 100644 index 0000000..b527d9b --- /dev/null +++ b/include/mbedtls/memory_buffer_alloc.h @@ -0,0 +1,142 @@ +/** + * \file memory_buffer_alloc.h + * + * \brief Buffer-based memory allocator + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_MEMORY_BUFFER_ALLOC_H +#define MBEDTLS_MEMORY_BUFFER_ALLOC_H + +#include "mbedtls/build_info.h" + +#include <stddef.h> + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in mbedtls_config.h or define them on the compiler command line. + * \{ + */ + +#if !defined(MBEDTLS_MEMORY_ALIGN_MULTIPLE) +#define MBEDTLS_MEMORY_ALIGN_MULTIPLE 4 /**< Align on multiples of this value */ +#endif + +/** \} name SECTION: Module settings */ + +#define MBEDTLS_MEMORY_VERIFY_NONE 0 +#define MBEDTLS_MEMORY_VERIFY_ALLOC (1 << 0) +#define MBEDTLS_MEMORY_VERIFY_FREE (1 << 1) +#define MBEDTLS_MEMORY_VERIFY_ALWAYS (MBEDTLS_MEMORY_VERIFY_ALLOC | \ + MBEDTLS_MEMORY_VERIFY_FREE) + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Initialize use of stack-based memory allocator. + * The stack-based allocator does memory management inside the + * presented buffer and does not call calloc() and free(). + * It sets the global mbedtls_calloc() and mbedtls_free() pointers + * to its own functions. + * (Provided mbedtls_calloc() and mbedtls_free() are thread-safe if + * MBEDTLS_THREADING_C is defined) + * + * \note This code is not optimized and provides a straight-forward + * implementation of a stack-based memory allocator. + * + * \param buf buffer to use as heap + * \param len size of the buffer + */ +void mbedtls_memory_buffer_alloc_init(unsigned char *buf, size_t len); + +/** + * \brief Free the mutex for thread-safety and clear remaining memory + */ +void mbedtls_memory_buffer_alloc_free(void); + +/** + * \brief Determine when the allocator should automatically verify the state + * of the entire chain of headers / meta-data. + * (Default: MBEDTLS_MEMORY_VERIFY_NONE) + * + * \param verify One of MBEDTLS_MEMORY_VERIFY_NONE, MBEDTLS_MEMORY_VERIFY_ALLOC, + * MBEDTLS_MEMORY_VERIFY_FREE or MBEDTLS_MEMORY_VERIFY_ALWAYS + */ +void mbedtls_memory_buffer_set_verify(int verify); + +#if defined(MBEDTLS_MEMORY_DEBUG) +/** + * \brief Print out the status of the allocated memory (primarily for use + * after a program should have de-allocated all memory) + * Prints out a list of 'still allocated' blocks and their stack + * trace if MBEDTLS_MEMORY_BACKTRACE is defined. + */ +void mbedtls_memory_buffer_alloc_status(void); + +/** + * \brief Get the number of alloc/free so far. + * + * \param alloc_count Number of allocations. + * \param free_count Number of frees. + */ +void mbedtls_memory_buffer_alloc_count_get(size_t *alloc_count, size_t *free_count); + +/** + * \brief Get the peak heap usage so far + * + * \param max_used Peak number of bytes in use or committed. This + * includes bytes in allocated blocks too small to split + * into smaller blocks but larger than the requested size. + * \param max_blocks Peak number of blocks in use, including free and used + */ +void mbedtls_memory_buffer_alloc_max_get(size_t *max_used, size_t *max_blocks); + +/** + * \brief Reset peak statistics + */ +void mbedtls_memory_buffer_alloc_max_reset(void); + +/** + * \brief Get the current heap usage + * + * \param cur_used Current number of bytes in use or committed. This + * includes bytes in allocated blocks too small to split + * into smaller blocks but larger than the requested size. + * \param cur_blocks Current number of blocks in use, including free and used + */ +void mbedtls_memory_buffer_alloc_cur_get(size_t *cur_used, size_t *cur_blocks); +#endif /* MBEDTLS_MEMORY_DEBUG */ + +/** + * \brief Verifies that all headers in the memory buffer are correct + * and contain sane values. Helps debug buffer-overflow errors. + * + * Prints out first failure if MBEDTLS_MEMORY_DEBUG is defined. + * Prints out full header information if MBEDTLS_MEMORY_DEBUG + * is defined. (Includes stack trace information for each block if + * MBEDTLS_MEMORY_BACKTRACE is defined as well). + * + * \return 0 if verified, 1 otherwise + */ +int mbedtls_memory_buffer_alloc_verify(void); + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if a test failed + */ +int mbedtls_memory_buffer_alloc_self_test(int verbose); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* memory_buffer_alloc.h */ diff --git a/include/mbedtls/net_sockets.h b/include/mbedtls/net_sockets.h new file mode 100644 index 0000000..026f627 --- /dev/null +++ b/include/mbedtls/net_sockets.h @@ -0,0 +1,299 @@ +/** + * \file net_sockets.h + * + * \brief Network sockets abstraction layer to integrate Mbed TLS into a + * BSD-style sockets API. + * + * The network sockets module provides an example integration of the + * Mbed TLS library into a BSD sockets implementation. The module is + * intended to be an example of how Mbed TLS can be integrated into a + * networking stack, as well as to be Mbed TLS's network integration + * for its supported platforms. + * + * The module is intended only to be used with the Mbed TLS library and + * is not intended to be used by third party application software + * directly. + * + * The supported platforms are as follows: + * * Microsoft Windows and Windows CE + * * POSIX/Unix platforms including Linux, OS X + * + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_NET_SOCKETS_H +#define MBEDTLS_NET_SOCKETS_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/ssl.h" + +#include <stddef.h> +#include <stdint.h> + +/** Failed to open a socket. */ +#define MBEDTLS_ERR_NET_SOCKET_FAILED -0x0042 +/** The connection to the given server / port failed. */ +#define MBEDTLS_ERR_NET_CONNECT_FAILED -0x0044 +/** Binding of the socket failed. */ +#define MBEDTLS_ERR_NET_BIND_FAILED -0x0046 +/** Could not listen on the socket. */ +#define MBEDTLS_ERR_NET_LISTEN_FAILED -0x0048 +/** Could not accept the incoming connection. */ +#define MBEDTLS_ERR_NET_ACCEPT_FAILED -0x004A +/** Reading information from the socket failed. */ +#define MBEDTLS_ERR_NET_RECV_FAILED -0x004C +/** Sending information through the socket failed. */ +#define MBEDTLS_ERR_NET_SEND_FAILED -0x004E +/** Connection was reset by peer. */ +#define MBEDTLS_ERR_NET_CONN_RESET -0x0050 +/** Failed to get an IP address for the given hostname. */ +#define MBEDTLS_ERR_NET_UNKNOWN_HOST -0x0052 +/** Buffer is too small to hold the data. */ +#define MBEDTLS_ERR_NET_BUFFER_TOO_SMALL -0x0043 +/** The context is invalid, eg because it was free()ed. */ +#define MBEDTLS_ERR_NET_INVALID_CONTEXT -0x0045 +/** Polling the net context failed. */ +#define MBEDTLS_ERR_NET_POLL_FAILED -0x0047 +/** Input invalid. */ +#define MBEDTLS_ERR_NET_BAD_INPUT_DATA -0x0049 + +#define MBEDTLS_NET_LISTEN_BACKLOG 10 /**< The backlog that listen() should use. */ + +#define MBEDTLS_NET_PROTO_TCP 0 /**< The TCP transport protocol */ +#define MBEDTLS_NET_PROTO_UDP 1 /**< The UDP transport protocol */ + +#define MBEDTLS_NET_POLL_READ 1 /**< Used in \c mbedtls_net_poll to check for pending data */ +#define MBEDTLS_NET_POLL_WRITE 2 /**< Used in \c mbedtls_net_poll to check if write possible */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Wrapper type for sockets. + * + * Currently backed by just a file descriptor, but might be more in the future + * (eg two file descriptors for combined IPv4 + IPv6 support, or additional + * structures for hand-made UDP demultiplexing). + */ +typedef struct mbedtls_net_context { + /** The underlying file descriptor. + * + * This field is only guaranteed to be present on POSIX/Unix-like platforms. + * On other platforms, it may have a different type, have a different + * meaning, or be absent altogether. + */ + int fd; +} +mbedtls_net_context; + +/** + * \brief Initialize a context + * Just makes the context ready to be used or freed safely. + * + * \param ctx Context to initialize + */ +void mbedtls_net_init(mbedtls_net_context *ctx); + +/** + * \brief Initiate a connection with host:port in the given protocol + * + * \param ctx Socket to use + * \param host Host to connect to + * \param port Port to connect to + * \param proto Protocol: MBEDTLS_NET_PROTO_TCP or MBEDTLS_NET_PROTO_UDP + * + * \return 0 if successful, or one of: + * MBEDTLS_ERR_NET_SOCKET_FAILED, + * MBEDTLS_ERR_NET_UNKNOWN_HOST, + * MBEDTLS_ERR_NET_CONNECT_FAILED + * + * \note Sets the socket in connected mode even with UDP. + */ +int mbedtls_net_connect(mbedtls_net_context *ctx, const char *host, const char *port, int proto); + +/** + * \brief Create a receiving socket on bind_ip:port in the chosen + * protocol. If bind_ip == NULL, all interfaces are bound. + * + * \param ctx Socket to use + * \param bind_ip IP to bind to, can be NULL + * \param port Port number to use + * \param proto Protocol: MBEDTLS_NET_PROTO_TCP or MBEDTLS_NET_PROTO_UDP + * + * \return 0 if successful, or one of: + * MBEDTLS_ERR_NET_SOCKET_FAILED, + * MBEDTLS_ERR_NET_UNKNOWN_HOST, + * MBEDTLS_ERR_NET_BIND_FAILED, + * MBEDTLS_ERR_NET_LISTEN_FAILED + * + * \note Regardless of the protocol, opens the sockets and binds it. + * In addition, make the socket listening if protocol is TCP. + */ +int mbedtls_net_bind(mbedtls_net_context *ctx, const char *bind_ip, const char *port, int proto); + +/** + * \brief Accept a connection from a remote client + * + * \param bind_ctx Relevant socket + * \param client_ctx Will contain the connected client socket + * \param client_ip Will contain the client IP address, can be NULL + * \param buf_size Size of the client_ip buffer + * \param ip_len Will receive the size of the client IP written, + * can be NULL if client_ip is null + * + * \return 0 if successful, or + * MBEDTLS_ERR_NET_SOCKET_FAILED, + * MBEDTLS_ERR_NET_BIND_FAILED, + * MBEDTLS_ERR_NET_ACCEPT_FAILED, or + * MBEDTLS_ERR_NET_BUFFER_TOO_SMALL if buf_size is too small, + * MBEDTLS_ERR_SSL_WANT_READ if bind_fd was set to + * non-blocking and accept() would block. + */ +int mbedtls_net_accept(mbedtls_net_context *bind_ctx, + mbedtls_net_context *client_ctx, + void *client_ip, size_t buf_size, size_t *ip_len); + +/** + * \brief Check and wait for the context to be ready for read/write + * + * \note The current implementation of this function uses + * select() and returns an error if the file descriptor + * is \c FD_SETSIZE or greater. + * + * \param ctx Socket to check + * \param rw Bitflag composed of MBEDTLS_NET_POLL_READ and + * MBEDTLS_NET_POLL_WRITE specifying the events + * to wait for: + * - If MBEDTLS_NET_POLL_READ is set, the function + * will return as soon as the net context is available + * for reading. + * - If MBEDTLS_NET_POLL_WRITE is set, the function + * will return as soon as the net context is available + * for writing. + * \param timeout Maximal amount of time to wait before returning, + * in milliseconds. If \c timeout is zero, the + * function returns immediately. If \c timeout is + * -1u, the function blocks potentially indefinitely. + * + * \return Bitmask composed of MBEDTLS_NET_POLL_READ/WRITE + * on success or timeout, or a negative return code otherwise. + */ +int mbedtls_net_poll(mbedtls_net_context *ctx, uint32_t rw, uint32_t timeout); + +/** + * \brief Set the socket blocking + * + * \param ctx Socket to set + * + * \return 0 if successful, or a non-zero error code + */ +int mbedtls_net_set_block(mbedtls_net_context *ctx); + +/** + * \brief Set the socket non-blocking + * + * \param ctx Socket to set + * + * \return 0 if successful, or a non-zero error code + */ +int mbedtls_net_set_nonblock(mbedtls_net_context *ctx); + +/** + * \brief Portable usleep helper + * + * \param usec Amount of microseconds to sleep + * + * \note Real amount of time slept will not be less than + * select()'s timeout granularity (typically, 10ms). + */ +void mbedtls_net_usleep(unsigned long usec); + +/** + * \brief Read at most 'len' characters. If no error occurs, + * the actual amount read is returned. + * + * \param ctx Socket + * \param buf The buffer to write to + * \param len Maximum length of the buffer + * + * \return the number of bytes received, + * or a non-zero error code; with a non-blocking socket, + * MBEDTLS_ERR_SSL_WANT_READ indicates read() would block. + */ +int mbedtls_net_recv(void *ctx, unsigned char *buf, size_t len); + +/** + * \brief Write at most 'len' characters. If no error occurs, + * the actual amount read is returned. + * + * \param ctx Socket + * \param buf The buffer to read from + * \param len The length of the buffer + * + * \return the number of bytes sent, + * or a non-zero error code; with a non-blocking socket, + * MBEDTLS_ERR_SSL_WANT_WRITE indicates write() would block. + */ +int mbedtls_net_send(void *ctx, const unsigned char *buf, size_t len); + +/** + * \brief Read at most 'len' characters, blocking for at most + * 'timeout' seconds. If no error occurs, the actual amount + * read is returned. + * + * \note The current implementation of this function uses + * select() and returns an error if the file descriptor + * is \c FD_SETSIZE or greater. + * + * \param ctx Socket + * \param buf The buffer to write to + * \param len Maximum length of the buffer + * \param timeout Maximum number of milliseconds to wait for data + * 0 means no timeout (wait forever) + * + * \return The number of bytes received if successful. + * MBEDTLS_ERR_SSL_TIMEOUT if the operation timed out. + * MBEDTLS_ERR_SSL_WANT_READ if interrupted by a signal. + * Another negative error code (MBEDTLS_ERR_NET_xxx) + * for other failures. + * + * \note This function will block (until data becomes available or + * timeout is reached) even if the socket is set to + * non-blocking. Handling timeouts with non-blocking reads + * requires a different strategy. + */ +int mbedtls_net_recv_timeout(void *ctx, unsigned char *buf, size_t len, + uint32_t timeout); + +/** + * \brief Closes down the connection and free associated data + * + * \param ctx The context to close + * + * \note This function frees and clears data associated with the + * context but does not free the memory pointed to by \p ctx. + * This memory is the responsibility of the caller. + */ +void mbedtls_net_close(mbedtls_net_context *ctx); + +/** + * \brief Gracefully shutdown the connection and free associated data + * + * \param ctx The context to free + * + * \note This function frees and clears data associated with the + * context but does not free the memory pointed to by \p ctx. + * This memory is the responsibility of the caller. + */ +void mbedtls_net_free(mbedtls_net_context *ctx); + +#ifdef __cplusplus +} +#endif + +#endif /* net_sockets.h */ diff --git a/include/mbedtls/nist_kw.h b/include/mbedtls/nist_kw.h new file mode 100644 index 0000000..d353f3d --- /dev/null +++ b/include/mbedtls/nist_kw.h @@ -0,0 +1,166 @@ +/** + * \file nist_kw.h + * + * \brief This file provides an API for key wrapping (KW) and key wrapping with + * padding (KWP) as defined in NIST SP 800-38F. + * https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-38F.pdf + * + * Key wrapping specifies a deterministic authenticated-encryption mode + * of operation, according to <em>NIST SP 800-38F: Recommendation for + * Block Cipher Modes of Operation: Methods for Key Wrapping</em>. Its + * purpose is to protect cryptographic keys. + * + * Its equivalent is RFC 3394 for KW, and RFC 5649 for KWP. + * https://tools.ietf.org/html/rfc3394 + * https://tools.ietf.org/html/rfc5649 + * + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_NIST_KW_H +#define MBEDTLS_NIST_KW_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/cipher.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum { + MBEDTLS_KW_MODE_KW = 0, + MBEDTLS_KW_MODE_KWP = 1 +} mbedtls_nist_kw_mode_t; + +#if !defined(MBEDTLS_NIST_KW_ALT) +// Regular implementation +// + +/** + * \brief The key wrapping context-type definition. The key wrapping context is passed + * to the APIs called. + * + * \note The definition of this type may change in future library versions. + * Don't make any assumptions on this context! + */ +typedef struct { + mbedtls_cipher_context_t MBEDTLS_PRIVATE(cipher_ctx); /*!< The cipher context used. */ +} mbedtls_nist_kw_context; + +#else /* MBEDTLS_NIST_key wrapping_ALT */ +#include "nist_kw_alt.h" +#endif /* MBEDTLS_NIST_KW_ALT */ + +/** + * \brief This function initializes the specified key wrapping context + * to make references valid and prepare the context + * for mbedtls_nist_kw_setkey() or mbedtls_nist_kw_free(). + * + * \param ctx The key wrapping context to initialize. + * + */ +void mbedtls_nist_kw_init(mbedtls_nist_kw_context *ctx); + +/** + * \brief This function initializes the key wrapping context set in the + * \p ctx parameter and sets the encryption key. + * + * \param ctx The key wrapping context. + * \param cipher The 128-bit block cipher to use. Only AES is supported. + * \param key The Key Encryption Key (KEK). + * \param keybits The KEK size in bits. This must be acceptable by the cipher. + * \param is_wrap Specify whether the operation within the context is wrapping or unwrapping + * + * \return \c 0 on success. + * \return \c MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA for any invalid input. + * \return \c MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE for 128-bit block ciphers + * which are not supported. + * \return cipher-specific error code on failure of the underlying cipher. + */ +int mbedtls_nist_kw_setkey(mbedtls_nist_kw_context *ctx, + mbedtls_cipher_id_t cipher, + const unsigned char *key, + unsigned int keybits, + const int is_wrap); + +/** + * \brief This function releases and clears the specified key wrapping context + * and underlying cipher sub-context. + * + * \param ctx The key wrapping context to clear. + */ +void mbedtls_nist_kw_free(mbedtls_nist_kw_context *ctx); + +/** + * \brief This function encrypts a buffer using key wrapping. + * + * \param ctx The key wrapping context to use for encryption. + * \param mode The key wrapping mode to use (MBEDTLS_KW_MODE_KW or MBEDTLS_KW_MODE_KWP) + * \param input The buffer holding the input data. + * \param in_len The length of the input data in Bytes. + * The input uses units of 8 Bytes called semiblocks. + * <ul><li>For KW mode: a multiple of 8 bytes between 16 and 2^57-8 inclusive. </li> + * <li>For KWP mode: any length between 1 and 2^32-1 inclusive.</li></ul> + * \param[out] output The buffer holding the output data. + * <ul><li>For KW mode: Must be at least 8 bytes larger than \p in_len.</li> + * <li>For KWP mode: Must be at least 8 bytes larger rounded up to a multiple of + * 8 bytes for KWP (15 bytes at most).</li></ul> + * \param[out] out_len The number of bytes written to the output buffer. \c 0 on failure. + * \param[in] out_size The capacity of the output buffer. + * + * \return \c 0 on success. + * \return \c MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA for invalid input length. + * \return cipher-specific error code on failure of the underlying cipher. + */ +int mbedtls_nist_kw_wrap(mbedtls_nist_kw_context *ctx, mbedtls_nist_kw_mode_t mode, + const unsigned char *input, size_t in_len, + unsigned char *output, size_t *out_len, size_t out_size); + +/** + * \brief This function decrypts a buffer using key wrapping. + * + * \param ctx The key wrapping context to use for decryption. + * \param mode The key wrapping mode to use (MBEDTLS_KW_MODE_KW or MBEDTLS_KW_MODE_KWP) + * \param input The buffer holding the input data. + * \param in_len The length of the input data in Bytes. + * The input uses units of 8 Bytes called semiblocks. + * The input must be a multiple of semiblocks. + * <ul><li>For KW mode: a multiple of 8 bytes between 24 and 2^57 inclusive. </li> + * <li>For KWP mode: a multiple of 8 bytes between 16 and 2^32 inclusive.</li></ul> + * \param[out] output The buffer holding the output data. + * The output buffer's minimal length is 8 bytes shorter than \p in_len. + * \param[out] out_len The number of bytes written to the output buffer. \c 0 on failure. + * For KWP mode, the length could be up to 15 bytes shorter than \p in_len, + * depending on how much padding was added to the data. + * \param[in] out_size The capacity of the output buffer. + * + * \return \c 0 on success. + * \return \c MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA for invalid input length. + * \return \c MBEDTLS_ERR_CIPHER_AUTH_FAILED for verification failure of the ciphertext. + * \return cipher-specific error code on failure of the underlying cipher. + */ +int mbedtls_nist_kw_unwrap(mbedtls_nist_kw_context *ctx, mbedtls_nist_kw_mode_t mode, + const unsigned char *input, size_t in_len, + unsigned char *output, size_t *out_len, size_t out_size); + + +#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C) +/** + * \brief The key wrapping checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_nist_kw_self_test(int verbose); +#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_NIST_KW_H */ diff --git a/include/mbedtls/oid.h b/include/mbedtls/oid.h new file mode 100644 index 0000000..e48817d --- /dev/null +++ b/include/mbedtls/oid.h @@ -0,0 +1,722 @@ +/** + * \file oid.h + * + * \brief Object Identifier (OID) database + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_OID_H +#define MBEDTLS_OID_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/asn1.h" +#include "mbedtls/pk.h" + +#include <stddef.h> + +#if defined(MBEDTLS_CIPHER_C) +#include "mbedtls/cipher.h" +#endif + +#include "mbedtls/md.h" + +/** OID is not found. */ +#define MBEDTLS_ERR_OID_NOT_FOUND -0x002E +/** output buffer is too small */ +#define MBEDTLS_ERR_OID_BUF_TOO_SMALL -0x000B + +/* This is for the benefit of X.509, but defined here in order to avoid + * having a "backwards" include of x.509.h here */ +/* + * X.509 extension types (internal, arbitrary values for bitsets) + */ +#define MBEDTLS_OID_X509_EXT_AUTHORITY_KEY_IDENTIFIER (1 << 0) +#define MBEDTLS_OID_X509_EXT_SUBJECT_KEY_IDENTIFIER (1 << 1) +#define MBEDTLS_OID_X509_EXT_KEY_USAGE (1 << 2) +#define MBEDTLS_OID_X509_EXT_CERTIFICATE_POLICIES (1 << 3) +#define MBEDTLS_OID_X509_EXT_POLICY_MAPPINGS (1 << 4) +#define MBEDTLS_OID_X509_EXT_SUBJECT_ALT_NAME (1 << 5) +#define MBEDTLS_OID_X509_EXT_ISSUER_ALT_NAME (1 << 6) +#define MBEDTLS_OID_X509_EXT_SUBJECT_DIRECTORY_ATTRS (1 << 7) +#define MBEDTLS_OID_X509_EXT_BASIC_CONSTRAINTS (1 << 8) +#define MBEDTLS_OID_X509_EXT_NAME_CONSTRAINTS (1 << 9) +#define MBEDTLS_OID_X509_EXT_POLICY_CONSTRAINTS (1 << 10) +#define MBEDTLS_OID_X509_EXT_EXTENDED_KEY_USAGE (1 << 11) +#define MBEDTLS_OID_X509_EXT_CRL_DISTRIBUTION_POINTS (1 << 12) +#define MBEDTLS_OID_X509_EXT_INIHIBIT_ANYPOLICY (1 << 13) +#define MBEDTLS_OID_X509_EXT_FRESHEST_CRL (1 << 14) +#define MBEDTLS_OID_X509_EXT_NS_CERT_TYPE (1 << 16) + +/* + * Maximum number of OID components allowed + */ +#define MBEDTLS_OID_MAX_COMPONENTS 128 + +/* + * Top level OID tuples + */ +#define MBEDTLS_OID_ISO_MEMBER_BODIES "\x2a" /* {iso(1) member-body(2)} */ +#define MBEDTLS_OID_ISO_IDENTIFIED_ORG "\x2b" /* {iso(1) identified-organization(3)} */ +#define MBEDTLS_OID_ISO_CCITT_DS "\x55" /* {joint-iso-ccitt(2) ds(5)} */ +#define MBEDTLS_OID_ISO_ITU_COUNTRY "\x60" /* {joint-iso-itu-t(2) country(16)} */ + +/* + * ISO Member bodies OID parts + */ +#define MBEDTLS_OID_COUNTRY_US "\x86\x48" /* {us(840)} */ +#define MBEDTLS_OID_ORG_RSA_DATA_SECURITY "\x86\xf7\x0d" /* {rsadsi(113549)} */ +#define MBEDTLS_OID_RSA_COMPANY MBEDTLS_OID_ISO_MEMBER_BODIES MBEDTLS_OID_COUNTRY_US \ + MBEDTLS_OID_ORG_RSA_DATA_SECURITY /* {iso(1) member-body(2) us(840) rsadsi(113549)} */ +#define MBEDTLS_OID_ORG_ANSI_X9_62 "\xce\x3d" /* ansi-X9-62(10045) */ +#define MBEDTLS_OID_ANSI_X9_62 MBEDTLS_OID_ISO_MEMBER_BODIES MBEDTLS_OID_COUNTRY_US \ + MBEDTLS_OID_ORG_ANSI_X9_62 + +/* + * ISO Identified organization OID parts + */ +#define MBEDTLS_OID_ORG_DOD "\x06" /* {dod(6)} */ +#define MBEDTLS_OID_ORG_OIW "\x0e" +#define MBEDTLS_OID_OIW_SECSIG MBEDTLS_OID_ORG_OIW "\x03" +#define MBEDTLS_OID_OIW_SECSIG_ALG MBEDTLS_OID_OIW_SECSIG "\x02" +#define MBEDTLS_OID_OIW_SECSIG_SHA1 MBEDTLS_OID_OIW_SECSIG_ALG "\x1a" +#define MBEDTLS_OID_ORG_THAWTE "\x65" /* thawte(101) */ +#define MBEDTLS_OID_THAWTE MBEDTLS_OID_ISO_IDENTIFIED_ORG \ + MBEDTLS_OID_ORG_THAWTE +#define MBEDTLS_OID_ORG_CERTICOM "\x81\x04" /* certicom(132) */ +#define MBEDTLS_OID_CERTICOM MBEDTLS_OID_ISO_IDENTIFIED_ORG \ + MBEDTLS_OID_ORG_CERTICOM +#define MBEDTLS_OID_ORG_TELETRUST "\x24" /* teletrust(36) */ +#define MBEDTLS_OID_TELETRUST MBEDTLS_OID_ISO_IDENTIFIED_ORG \ + MBEDTLS_OID_ORG_TELETRUST + +/* + * ISO ITU OID parts + */ +#define MBEDTLS_OID_ORGANIZATION "\x01" /* {organization(1)} */ +#define MBEDTLS_OID_ISO_ITU_US_ORG MBEDTLS_OID_ISO_ITU_COUNTRY MBEDTLS_OID_COUNTRY_US \ + MBEDTLS_OID_ORGANIZATION /* {joint-iso-itu-t(2) country(16) us(840) organization(1)} */ + +#define MBEDTLS_OID_ORG_GOV "\x65" /* {gov(101)} */ +#define MBEDTLS_OID_GOV MBEDTLS_OID_ISO_ITU_US_ORG MBEDTLS_OID_ORG_GOV /* {joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101)} */ + +#define MBEDTLS_OID_ORG_NETSCAPE "\x86\xF8\x42" /* {netscape(113730)} */ +#define MBEDTLS_OID_NETSCAPE MBEDTLS_OID_ISO_ITU_US_ORG MBEDTLS_OID_ORG_NETSCAPE /* Netscape OID {joint-iso-itu-t(2) country(16) us(840) organization(1) netscape(113730)} */ + +/* ISO arc for standard certificate and CRL extensions */ +#define MBEDTLS_OID_ID_CE MBEDTLS_OID_ISO_CCITT_DS "\x1D" /**< id-ce OBJECT IDENTIFIER ::= {joint-iso-ccitt(2) ds(5) 29} */ + +#define MBEDTLS_OID_NIST_ALG MBEDTLS_OID_GOV "\x03\x04" /** { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistAlgorithm(4) */ + +/** + * Private Internet Extensions + * { iso(1) identified-organization(3) dod(6) internet(1) + * security(5) mechanisms(5) pkix(7) } + */ +#define MBEDTLS_OID_INTERNET MBEDTLS_OID_ISO_IDENTIFIED_ORG MBEDTLS_OID_ORG_DOD \ + "\x01" +#define MBEDTLS_OID_PKIX MBEDTLS_OID_INTERNET "\x05\x05\x07" + +/* + * Arc for standard naming attributes + */ +#define MBEDTLS_OID_AT MBEDTLS_OID_ISO_CCITT_DS "\x04" /**< id-at OBJECT IDENTIFIER ::= {joint-iso-ccitt(2) ds(5) 4} */ +#define MBEDTLS_OID_AT_CN MBEDTLS_OID_AT "\x03" /**< id-at-commonName AttributeType:= {id-at 3} */ +#define MBEDTLS_OID_AT_SUR_NAME MBEDTLS_OID_AT "\x04" /**< id-at-surName AttributeType:= {id-at 4} */ +#define MBEDTLS_OID_AT_SERIAL_NUMBER MBEDTLS_OID_AT "\x05" /**< id-at-serialNumber AttributeType:= {id-at 5} */ +#define MBEDTLS_OID_AT_COUNTRY MBEDTLS_OID_AT "\x06" /**< id-at-countryName AttributeType:= {id-at 6} */ +#define MBEDTLS_OID_AT_LOCALITY MBEDTLS_OID_AT "\x07" /**< id-at-locality AttributeType:= {id-at 7} */ +#define MBEDTLS_OID_AT_STATE MBEDTLS_OID_AT "\x08" /**< id-at-state AttributeType:= {id-at 8} */ +#define MBEDTLS_OID_AT_ORGANIZATION MBEDTLS_OID_AT "\x0A" /**< id-at-organizationName AttributeType:= {id-at 10} */ +#define MBEDTLS_OID_AT_ORG_UNIT MBEDTLS_OID_AT "\x0B" /**< id-at-organizationalUnitName AttributeType:= {id-at 11} */ +#define MBEDTLS_OID_AT_TITLE MBEDTLS_OID_AT "\x0C" /**< id-at-title AttributeType:= {id-at 12} */ +#define MBEDTLS_OID_AT_POSTAL_ADDRESS MBEDTLS_OID_AT "\x10" /**< id-at-postalAddress AttributeType:= {id-at 16} */ +#define MBEDTLS_OID_AT_POSTAL_CODE MBEDTLS_OID_AT "\x11" /**< id-at-postalCode AttributeType:= {id-at 17} */ +#define MBEDTLS_OID_AT_GIVEN_NAME MBEDTLS_OID_AT "\x2A" /**< id-at-givenName AttributeType:= {id-at 42} */ +#define MBEDTLS_OID_AT_INITIALS MBEDTLS_OID_AT "\x2B" /**< id-at-initials AttributeType:= {id-at 43} */ +#define MBEDTLS_OID_AT_GENERATION_QUALIFIER MBEDTLS_OID_AT "\x2C" /**< id-at-generationQualifier AttributeType:= {id-at 44} */ +#define MBEDTLS_OID_AT_UNIQUE_IDENTIFIER MBEDTLS_OID_AT "\x2D" /**< id-at-uniqueIdentifier AttributeType:= {id-at 45} */ +#define MBEDTLS_OID_AT_DN_QUALIFIER MBEDTLS_OID_AT "\x2E" /**< id-at-dnQualifier AttributeType:= {id-at 46} */ +#define MBEDTLS_OID_AT_PSEUDONYM MBEDTLS_OID_AT "\x41" /**< id-at-pseudonym AttributeType:= {id-at 65} */ + +#define MBEDTLS_OID_UID "\x09\x92\x26\x89\x93\xF2\x2C\x64\x01\x01" /** id-domainComponent AttributeType:= {itu-t(0) data(9) pss(2342) ucl(19200300) pilot(100) pilotAttributeType(1) uid(1)} */ +#define MBEDTLS_OID_DOMAIN_COMPONENT "\x09\x92\x26\x89\x93\xF2\x2C\x64\x01\x19" /** id-domainComponent AttributeType:= {itu-t(0) data(9) pss(2342) ucl(19200300) pilot(100) pilotAttributeType(1) domainComponent(25)} */ + +/* + * OIDs for standard certificate extensions + */ +#define MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER MBEDTLS_OID_ID_CE "\x23" /**< id-ce-authorityKeyIdentifier OBJECT IDENTIFIER ::= { id-ce 35 } */ +#define MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER MBEDTLS_OID_ID_CE "\x0E" /**< id-ce-subjectKeyIdentifier OBJECT IDENTIFIER ::= { id-ce 14 } */ +#define MBEDTLS_OID_KEY_USAGE MBEDTLS_OID_ID_CE "\x0F" /**< id-ce-keyUsage OBJECT IDENTIFIER ::= { id-ce 15 } */ +#define MBEDTLS_OID_CERTIFICATE_POLICIES MBEDTLS_OID_ID_CE "\x20" /**< id-ce-certificatePolicies OBJECT IDENTIFIER ::= { id-ce 32 } */ +#define MBEDTLS_OID_POLICY_MAPPINGS MBEDTLS_OID_ID_CE "\x21" /**< id-ce-policyMappings OBJECT IDENTIFIER ::= { id-ce 33 } */ +#define MBEDTLS_OID_SUBJECT_ALT_NAME MBEDTLS_OID_ID_CE "\x11" /**< id-ce-subjectAltName OBJECT IDENTIFIER ::= { id-ce 17 } */ +#define MBEDTLS_OID_ISSUER_ALT_NAME MBEDTLS_OID_ID_CE "\x12" /**< id-ce-issuerAltName OBJECT IDENTIFIER ::= { id-ce 18 } */ +#define MBEDTLS_OID_SUBJECT_DIRECTORY_ATTRS MBEDTLS_OID_ID_CE "\x09" /**< id-ce-subjectDirectoryAttributes OBJECT IDENTIFIER ::= { id-ce 9 } */ +#define MBEDTLS_OID_BASIC_CONSTRAINTS MBEDTLS_OID_ID_CE "\x13" /**< id-ce-basicConstraints OBJECT IDENTIFIER ::= { id-ce 19 } */ +#define MBEDTLS_OID_NAME_CONSTRAINTS MBEDTLS_OID_ID_CE "\x1E" /**< id-ce-nameConstraints OBJECT IDENTIFIER ::= { id-ce 30 } */ +#define MBEDTLS_OID_POLICY_CONSTRAINTS MBEDTLS_OID_ID_CE "\x24" /**< id-ce-policyConstraints OBJECT IDENTIFIER ::= { id-ce 36 } */ +#define MBEDTLS_OID_EXTENDED_KEY_USAGE MBEDTLS_OID_ID_CE "\x25" /**< id-ce-extKeyUsage OBJECT IDENTIFIER ::= { id-ce 37 } */ +#define MBEDTLS_OID_CRL_DISTRIBUTION_POINTS MBEDTLS_OID_ID_CE "\x1F" /**< id-ce-cRLDistributionPoints OBJECT IDENTIFIER ::= { id-ce 31 } */ +#define MBEDTLS_OID_INIHIBIT_ANYPOLICY MBEDTLS_OID_ID_CE "\x36" /**< id-ce-inhibitAnyPolicy OBJECT IDENTIFIER ::= { id-ce 54 } */ +#define MBEDTLS_OID_FRESHEST_CRL MBEDTLS_OID_ID_CE "\x2E" /**< id-ce-freshestCRL OBJECT IDENTIFIER ::= { id-ce 46 } */ + +/* + * Certificate policies + */ +#define MBEDTLS_OID_ANY_POLICY MBEDTLS_OID_CERTIFICATE_POLICIES "\x00" /**< anyPolicy OBJECT IDENTIFIER ::= { id-ce-certificatePolicies 0 } */ + +/* + * Netscape certificate extensions + */ +#define MBEDTLS_OID_NS_CERT MBEDTLS_OID_NETSCAPE "\x01" +#define MBEDTLS_OID_NS_CERT_TYPE MBEDTLS_OID_NS_CERT "\x01" +#define MBEDTLS_OID_NS_BASE_URL MBEDTLS_OID_NS_CERT "\x02" +#define MBEDTLS_OID_NS_REVOCATION_URL MBEDTLS_OID_NS_CERT "\x03" +#define MBEDTLS_OID_NS_CA_REVOCATION_URL MBEDTLS_OID_NS_CERT "\x04" +#define MBEDTLS_OID_NS_RENEWAL_URL MBEDTLS_OID_NS_CERT "\x07" +#define MBEDTLS_OID_NS_CA_POLICY_URL MBEDTLS_OID_NS_CERT "\x08" +#define MBEDTLS_OID_NS_SSL_SERVER_NAME MBEDTLS_OID_NS_CERT "\x0C" +#define MBEDTLS_OID_NS_COMMENT MBEDTLS_OID_NS_CERT "\x0D" +#define MBEDTLS_OID_NS_DATA_TYPE MBEDTLS_OID_NETSCAPE "\x02" +#define MBEDTLS_OID_NS_CERT_SEQUENCE MBEDTLS_OID_NS_DATA_TYPE "\x05" + +/* + * OIDs for CRL extensions + */ +#define MBEDTLS_OID_PRIVATE_KEY_USAGE_PERIOD MBEDTLS_OID_ID_CE "\x10" +#define MBEDTLS_OID_CRL_NUMBER MBEDTLS_OID_ID_CE "\x14" /**< id-ce-cRLNumber OBJECT IDENTIFIER ::= { id-ce 20 } */ + +/* + * X.509 v3 Extended key usage OIDs + */ +#define MBEDTLS_OID_ANY_EXTENDED_KEY_USAGE MBEDTLS_OID_EXTENDED_KEY_USAGE "\x00" /**< anyExtendedKeyUsage OBJECT IDENTIFIER ::= { id-ce-extKeyUsage 0 } */ + +#define MBEDTLS_OID_KP MBEDTLS_OID_PKIX "\x03" /**< id-kp OBJECT IDENTIFIER ::= { id-pkix 3 } */ +#define MBEDTLS_OID_SERVER_AUTH MBEDTLS_OID_KP "\x01" /**< id-kp-serverAuth OBJECT IDENTIFIER ::= { id-kp 1 } */ +#define MBEDTLS_OID_CLIENT_AUTH MBEDTLS_OID_KP "\x02" /**< id-kp-clientAuth OBJECT IDENTIFIER ::= { id-kp 2 } */ +#define MBEDTLS_OID_CODE_SIGNING MBEDTLS_OID_KP "\x03" /**< id-kp-codeSigning OBJECT IDENTIFIER ::= { id-kp 3 } */ +#define MBEDTLS_OID_EMAIL_PROTECTION MBEDTLS_OID_KP "\x04" /**< id-kp-emailProtection OBJECT IDENTIFIER ::= { id-kp 4 } */ +#define MBEDTLS_OID_TIME_STAMPING MBEDTLS_OID_KP "\x08" /**< id-kp-timeStamping OBJECT IDENTIFIER ::= { id-kp 8 } */ +#define MBEDTLS_OID_OCSP_SIGNING MBEDTLS_OID_KP "\x09" /**< id-kp-OCSPSigning OBJECT IDENTIFIER ::= { id-kp 9 } */ + +/** + * Wi-SUN Alliance Field Area Network + * { iso(1) identified-organization(3) dod(6) internet(1) + * private(4) enterprise(1) WiSUN(45605) FieldAreaNetwork(1) } + */ +#define MBEDTLS_OID_WISUN_FAN MBEDTLS_OID_INTERNET "\x04\x01\x82\xe4\x25\x01" + +#define MBEDTLS_OID_ON MBEDTLS_OID_PKIX "\x08" /**< id-on OBJECT IDENTIFIER ::= { id-pkix 8 } */ +#define MBEDTLS_OID_ON_HW_MODULE_NAME MBEDTLS_OID_ON "\x04" /**< id-on-hardwareModuleName OBJECT IDENTIFIER ::= { id-on 4 } */ + +/* + * PKCS definition OIDs + */ + +#define MBEDTLS_OID_PKCS MBEDTLS_OID_RSA_COMPANY "\x01" /**< pkcs OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) 1 } */ +#define MBEDTLS_OID_PKCS1 MBEDTLS_OID_PKCS "\x01" /**< pkcs-1 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 1 } */ +#define MBEDTLS_OID_PKCS5 MBEDTLS_OID_PKCS "\x05" /**< pkcs-5 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 5 } */ +#define MBEDTLS_OID_PKCS7 MBEDTLS_OID_PKCS "\x07" /**< pkcs-7 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 7 } */ +#define MBEDTLS_OID_PKCS9 MBEDTLS_OID_PKCS "\x09" /**< pkcs-9 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 9 } */ +#define MBEDTLS_OID_PKCS12 MBEDTLS_OID_PKCS "\x0c" /**< pkcs-12 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 12 } */ + +/* + * PKCS#1 OIDs + */ +#define MBEDTLS_OID_PKCS1_RSA MBEDTLS_OID_PKCS1 "\x01" /**< rsaEncryption OBJECT IDENTIFIER ::= { pkcs-1 1 } */ +#define MBEDTLS_OID_PKCS1_MD5 MBEDTLS_OID_PKCS1 "\x04" /**< md5WithRSAEncryption ::= { pkcs-1 4 } */ +#define MBEDTLS_OID_PKCS1_SHA1 MBEDTLS_OID_PKCS1 "\x05" /**< sha1WithRSAEncryption ::= { pkcs-1 5 } */ +#define MBEDTLS_OID_PKCS1_SHA224 MBEDTLS_OID_PKCS1 "\x0e" /**< sha224WithRSAEncryption ::= { pkcs-1 14 } */ +#define MBEDTLS_OID_PKCS1_SHA256 MBEDTLS_OID_PKCS1 "\x0b" /**< sha256WithRSAEncryption ::= { pkcs-1 11 } */ +#define MBEDTLS_OID_PKCS1_SHA384 MBEDTLS_OID_PKCS1 "\x0c" /**< sha384WithRSAEncryption ::= { pkcs-1 12 } */ +#define MBEDTLS_OID_PKCS1_SHA512 MBEDTLS_OID_PKCS1 "\x0d" /**< sha512WithRSAEncryption ::= { pkcs-1 13 } */ + +#define MBEDTLS_OID_RSA_SHA_OBS "\x2B\x0E\x03\x02\x1D" + +#define MBEDTLS_OID_PKCS9_EMAIL MBEDTLS_OID_PKCS9 "\x01" /**< emailAddress AttributeType ::= { pkcs-9 1 } */ + +/* RFC 4055 */ +#define MBEDTLS_OID_RSASSA_PSS MBEDTLS_OID_PKCS1 "\x0a" /**< id-RSASSA-PSS ::= { pkcs-1 10 } */ +#define MBEDTLS_OID_MGF1 MBEDTLS_OID_PKCS1 "\x08" /**< id-mgf1 ::= { pkcs-1 8 } */ + +/* + * Digest algorithms + */ +#define MBEDTLS_OID_DIGEST_ALG_MD5 MBEDTLS_OID_RSA_COMPANY "\x02\x05" /**< id-mbedtls_md5 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 5 } */ +#define MBEDTLS_OID_DIGEST_ALG_SHA1 MBEDTLS_OID_ISO_IDENTIFIED_ORG \ + MBEDTLS_OID_OIW_SECSIG_SHA1 /**< id-mbedtls_sha1 OBJECT IDENTIFIER ::= { iso(1) identified-organization(3) oiw(14) secsig(3) algorithms(2) 26 } */ +#define MBEDTLS_OID_DIGEST_ALG_SHA224 MBEDTLS_OID_NIST_ALG "\x02\x04" /**< id-sha224 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2) 4 } */ +#define MBEDTLS_OID_DIGEST_ALG_SHA256 MBEDTLS_OID_NIST_ALG "\x02\x01" /**< id-mbedtls_sha256 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2) 1 } */ + +#define MBEDTLS_OID_DIGEST_ALG_SHA384 MBEDTLS_OID_NIST_ALG "\x02\x02" /**< id-sha384 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2) 2 } */ + +#define MBEDTLS_OID_DIGEST_ALG_SHA512 MBEDTLS_OID_NIST_ALG "\x02\x03" /**< id-mbedtls_sha512 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2) 3 } */ + +#define MBEDTLS_OID_DIGEST_ALG_RIPEMD160 MBEDTLS_OID_TELETRUST "\x03\x02\x01" /**< id-ripemd160 OBJECT IDENTIFIER :: { iso(1) identified-organization(3) teletrust(36) algorithm(3) hashAlgorithm(2) ripemd160(1) } */ + +#define MBEDTLS_OID_DIGEST_ALG_SHA3_224 MBEDTLS_OID_NIST_ALG "\x02\x07" /**< id-sha3-224 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistAlgorithms(4) hashalgs(2) sha3-224(7) } */ + +#define MBEDTLS_OID_DIGEST_ALG_SHA3_256 MBEDTLS_OID_NIST_ALG "\x02\x08" /**< id-sha3-256 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistAlgorithms(4) hashalgs(2) sha3-256(8) } */ + +#define MBEDTLS_OID_DIGEST_ALG_SHA3_384 MBEDTLS_OID_NIST_ALG "\x02\x09" /**< id-sha3-384 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistAlgorithms(4) hashalgs(2) sha3-384(9) } */ + +#define MBEDTLS_OID_DIGEST_ALG_SHA3_512 MBEDTLS_OID_NIST_ALG "\x02\x0a" /**< id-sha3-512 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistAlgorithms(4) hashalgs(2) sha3-512(10) } */ + + +#define MBEDTLS_OID_HMAC_SHA1 MBEDTLS_OID_RSA_COMPANY "\x02\x07" /**< id-hmacWithSHA1 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 7 } */ + +#define MBEDTLS_OID_HMAC_SHA224 MBEDTLS_OID_RSA_COMPANY "\x02\x08" /**< id-hmacWithSHA224 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 8 } */ + +#define MBEDTLS_OID_HMAC_SHA256 MBEDTLS_OID_RSA_COMPANY "\x02\x09" /**< id-hmacWithSHA256 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 9 } */ + +#define MBEDTLS_OID_HMAC_SHA384 MBEDTLS_OID_RSA_COMPANY "\x02\x0A" /**< id-hmacWithSHA384 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 10 } */ + +#define MBEDTLS_OID_HMAC_SHA512 MBEDTLS_OID_RSA_COMPANY "\x02\x0B" /**< id-hmacWithSHA512 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 11 } */ + +#define MBEDTLS_OID_HMAC_SHA3_224 MBEDTLS_OID_NIST_ALG "\x02\x0d" /**< id-hmacWithSHA3-512 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistAlgorithms(4) hashalgs(2) hmacWithSHA3-224(13) } */ + +#define MBEDTLS_OID_HMAC_SHA3_256 MBEDTLS_OID_NIST_ALG "\x02\x0e" /**< id-hmacWithSHA3-512 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistAlgorithms(4) hashalgs(2) hmacWithSHA3-256(14) } */ + +#define MBEDTLS_OID_HMAC_SHA3_384 MBEDTLS_OID_NIST_ALG "\x02\x0f" /**< id-hmacWithSHA3-512 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistAlgorithms(4) hashalgs(2) hmacWithSHA3-384(15) } */ + +#define MBEDTLS_OID_HMAC_SHA3_512 MBEDTLS_OID_NIST_ALG "\x02\x10" /**< id-hmacWithSHA3-512 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistAlgorithms(4) hashalgs(2) hmacWithSHA3-512(16) } */ + +#define MBEDTLS_OID_HMAC_RIPEMD160 MBEDTLS_OID_INTERNET "\x05\x05\x08\x01\x04" /**< id-hmacWithSHA1 OBJECT IDENTIFIER ::= {iso(1) iso-identified-organization(3) dod(6) internet(1) security(5) mechanisms(5) ipsec(8) isakmpOakley(1) hmacRIPEMD160(4)} */ + +/* + * Encryption algorithms + */ +#define MBEDTLS_OID_DES_CBC MBEDTLS_OID_ISO_IDENTIFIED_ORG \ + MBEDTLS_OID_OIW_SECSIG_ALG "\x07" /**< desCBC OBJECT IDENTIFIER ::= { iso(1) identified-organization(3) oiw(14) secsig(3) algorithms(2) 7 } */ +#define MBEDTLS_OID_DES_EDE3_CBC MBEDTLS_OID_RSA_COMPANY "\x03\x07" /**< des-ede3-cbc OBJECT IDENTIFIER ::= { iso(1) member-body(2) -- us(840) rsadsi(113549) encryptionAlgorithm(3) 7 } */ +#define MBEDTLS_OID_AES MBEDTLS_OID_NIST_ALG "\x01" /** aes OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistAlgorithm(4) 1 } */ + +/* + * Key Wrapping algorithms + */ +/* + * RFC 5649 + */ +#define MBEDTLS_OID_AES128_KW MBEDTLS_OID_AES "\x05" /** id-aes128-wrap OBJECT IDENTIFIER ::= { aes 5 } */ +#define MBEDTLS_OID_AES128_KWP MBEDTLS_OID_AES "\x08" /** id-aes128-wrap-pad OBJECT IDENTIFIER ::= { aes 8 } */ +#define MBEDTLS_OID_AES192_KW MBEDTLS_OID_AES "\x19" /** id-aes192-wrap OBJECT IDENTIFIER ::= { aes 25 } */ +#define MBEDTLS_OID_AES192_KWP MBEDTLS_OID_AES "\x1c" /** id-aes192-wrap-pad OBJECT IDENTIFIER ::= { aes 28 } */ +#define MBEDTLS_OID_AES256_KW MBEDTLS_OID_AES "\x2d" /** id-aes256-wrap OBJECT IDENTIFIER ::= { aes 45 } */ +#define MBEDTLS_OID_AES256_KWP MBEDTLS_OID_AES "\x30" /** id-aes256-wrap-pad OBJECT IDENTIFIER ::= { aes 48 } */ +/* + * PKCS#5 OIDs + */ +#define MBEDTLS_OID_PKCS5_PBKDF2 MBEDTLS_OID_PKCS5 "\x0c" /**< id-PBKDF2 OBJECT IDENTIFIER ::= {pkcs-5 12} */ +#define MBEDTLS_OID_PKCS5_PBES2 MBEDTLS_OID_PKCS5 "\x0d" /**< id-PBES2 OBJECT IDENTIFIER ::= {pkcs-5 13} */ +#define MBEDTLS_OID_PKCS5_PBMAC1 MBEDTLS_OID_PKCS5 "\x0e" /**< id-PBMAC1 OBJECT IDENTIFIER ::= {pkcs-5 14} */ + +/* + * PKCS#5 PBES1 algorithms + */ +#define MBEDTLS_OID_PKCS5_PBE_MD5_DES_CBC MBEDTLS_OID_PKCS5 "\x03" /**< pbeWithMD5AndDES-CBC OBJECT IDENTIFIER ::= {pkcs-5 3} */ +#define MBEDTLS_OID_PKCS5_PBE_MD5_RC2_CBC MBEDTLS_OID_PKCS5 "\x06" /**< pbeWithMD5AndRC2-CBC OBJECT IDENTIFIER ::= {pkcs-5 6} */ +#define MBEDTLS_OID_PKCS5_PBE_SHA1_DES_CBC MBEDTLS_OID_PKCS5 "\x0a" /**< pbeWithSHA1AndDES-CBC OBJECT IDENTIFIER ::= {pkcs-5 10} */ +#define MBEDTLS_OID_PKCS5_PBE_SHA1_RC2_CBC MBEDTLS_OID_PKCS5 "\x0b" /**< pbeWithSHA1AndRC2-CBC OBJECT IDENTIFIER ::= {pkcs-5 11} */ + +/* + * PKCS#7 OIDs + */ +#define MBEDTLS_OID_PKCS7_DATA MBEDTLS_OID_PKCS7 "\x01" /**< Content type is Data OBJECT IDENTIFIER ::= {pkcs-7 1} */ +#define MBEDTLS_OID_PKCS7_SIGNED_DATA MBEDTLS_OID_PKCS7 "\x02" /**< Content type is Signed Data OBJECT IDENTIFIER ::= {pkcs-7 2} */ +#define MBEDTLS_OID_PKCS7_ENVELOPED_DATA MBEDTLS_OID_PKCS7 "\x03" /**< Content type is Enveloped Data OBJECT IDENTIFIER ::= {pkcs-7 3} */ +#define MBEDTLS_OID_PKCS7_SIGNED_AND_ENVELOPED_DATA MBEDTLS_OID_PKCS7 "\x04" /**< Content type is Signed and Enveloped Data OBJECT IDENTIFIER ::= {pkcs-7 4} */ +#define MBEDTLS_OID_PKCS7_DIGESTED_DATA MBEDTLS_OID_PKCS7 "\x05" /**< Content type is Digested Data OBJECT IDENTIFIER ::= {pkcs-7 5} */ +#define MBEDTLS_OID_PKCS7_ENCRYPTED_DATA MBEDTLS_OID_PKCS7 "\x06" /**< Content type is Encrypted Data OBJECT IDENTIFIER ::= {pkcs-7 6} */ + +/* + * PKCS#8 OIDs + */ +#define MBEDTLS_OID_PKCS9_CSR_EXT_REQ MBEDTLS_OID_PKCS9 "\x0e" /**< extensionRequest OBJECT IDENTIFIER ::= {pkcs-9 14} */ + +/* + * PKCS#12 PBE OIDs + */ +#define MBEDTLS_OID_PKCS12_PBE MBEDTLS_OID_PKCS12 "\x01" /**< pkcs-12PbeIds OBJECT IDENTIFIER ::= {pkcs-12 1} */ + +#define MBEDTLS_OID_PKCS12_PBE_SHA1_DES3_EDE_CBC MBEDTLS_OID_PKCS12_PBE "\x03" /**< pbeWithSHAAnd3-KeyTripleDES-CBC OBJECT IDENTIFIER ::= {pkcs-12PbeIds 3} */ +#define MBEDTLS_OID_PKCS12_PBE_SHA1_DES2_EDE_CBC MBEDTLS_OID_PKCS12_PBE "\x04" /**< pbeWithSHAAnd2-KeyTripleDES-CBC OBJECT IDENTIFIER ::= {pkcs-12PbeIds 4} */ +#define MBEDTLS_OID_PKCS12_PBE_SHA1_RC2_128_CBC MBEDTLS_OID_PKCS12_PBE "\x05" /**< pbeWithSHAAnd128BitRC2-CBC OBJECT IDENTIFIER ::= {pkcs-12PbeIds 5} */ +#define MBEDTLS_OID_PKCS12_PBE_SHA1_RC2_40_CBC MBEDTLS_OID_PKCS12_PBE "\x06" /**< pbeWithSHAAnd40BitRC2-CBC OBJECT IDENTIFIER ::= {pkcs-12PbeIds 6} */ + +/* + * EC key algorithms from RFC 5480 + */ + +/* id-ecPublicKey OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) keyType(2) 1 } */ +#define MBEDTLS_OID_EC_ALG_UNRESTRICTED MBEDTLS_OID_ANSI_X9_62 "\x02\01" + +/* id-ecDH OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) + * schemes(1) ecdh(12) } */ +#define MBEDTLS_OID_EC_ALG_ECDH MBEDTLS_OID_CERTICOM "\x01\x0c" + +/* + * ECParameters namedCurve identifiers, from RFC 5480, RFC 5639, and SEC2 + */ + +/* secp192r1 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3) prime(1) 1 } */ +#define MBEDTLS_OID_EC_GRP_SECP192R1 MBEDTLS_OID_ANSI_X9_62 "\x03\x01\x01" + +/* secp224r1 OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) curve(0) 33 } */ +#define MBEDTLS_OID_EC_GRP_SECP224R1 MBEDTLS_OID_CERTICOM "\x00\x21" + +/* secp256r1 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3) prime(1) 7 } */ +#define MBEDTLS_OID_EC_GRP_SECP256R1 MBEDTLS_OID_ANSI_X9_62 "\x03\x01\x07" + +/* secp384r1 OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) curve(0) 34 } */ +#define MBEDTLS_OID_EC_GRP_SECP384R1 MBEDTLS_OID_CERTICOM "\x00\x22" + +/* secp521r1 OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) curve(0) 35 } */ +#define MBEDTLS_OID_EC_GRP_SECP521R1 MBEDTLS_OID_CERTICOM "\x00\x23" + +/* secp192k1 OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) curve(0) 31 } */ +#define MBEDTLS_OID_EC_GRP_SECP192K1 MBEDTLS_OID_CERTICOM "\x00\x1f" + +/* secp224k1 OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) curve(0) 32 } */ +#define MBEDTLS_OID_EC_GRP_SECP224K1 MBEDTLS_OID_CERTICOM "\x00\x20" + +/* secp256k1 OBJECT IDENTIFIER ::= { + * iso(1) identified-organization(3) certicom(132) curve(0) 10 } */ +#define MBEDTLS_OID_EC_GRP_SECP256K1 MBEDTLS_OID_CERTICOM "\x00\x0a" + +/* RFC 5639 4.1 + * ecStdCurvesAndGeneration OBJECT IDENTIFIER::= {iso(1) + * identified-organization(3) teletrust(36) algorithm(3) signature- + * algorithm(3) ecSign(2) 8} + * ellipticCurve OBJECT IDENTIFIER ::= {ecStdCurvesAndGeneration 1} + * versionOne OBJECT IDENTIFIER ::= {ellipticCurve 1} */ +#define MBEDTLS_OID_EC_BRAINPOOL_V1 MBEDTLS_OID_TELETRUST "\x03\x03\x02\x08\x01\x01" + +/* brainpoolP256r1 OBJECT IDENTIFIER ::= {versionOne 7} */ +#define MBEDTLS_OID_EC_GRP_BP256R1 MBEDTLS_OID_EC_BRAINPOOL_V1 "\x07" + +/* brainpoolP384r1 OBJECT IDENTIFIER ::= {versionOne 11} */ +#define MBEDTLS_OID_EC_GRP_BP384R1 MBEDTLS_OID_EC_BRAINPOOL_V1 "\x0B" + +/* brainpoolP512r1 OBJECT IDENTIFIER ::= {versionOne 13} */ +#define MBEDTLS_OID_EC_GRP_BP512R1 MBEDTLS_OID_EC_BRAINPOOL_V1 "\x0D" + +/* + * SEC1 C.1 + * + * prime-field OBJECT IDENTIFIER ::= { id-fieldType 1 } + * id-fieldType OBJECT IDENTIFIER ::= { ansi-X9-62 fieldType(1)} + */ +#define MBEDTLS_OID_ANSI_X9_62_FIELD_TYPE MBEDTLS_OID_ANSI_X9_62 "\x01" +#define MBEDTLS_OID_ANSI_X9_62_PRIME_FIELD MBEDTLS_OID_ANSI_X9_62_FIELD_TYPE "\x01" + +/* + * ECDSA signature identifiers, from RFC 5480 + */ +#define MBEDTLS_OID_ANSI_X9_62_SIG MBEDTLS_OID_ANSI_X9_62 "\x04" /* signatures(4) */ +#define MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 MBEDTLS_OID_ANSI_X9_62_SIG "\x03" /* ecdsa-with-SHA2(3) */ + +/* ecdsa-with-SHA1 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4) 1 } */ +#define MBEDTLS_OID_ECDSA_SHA1 MBEDTLS_OID_ANSI_X9_62_SIG "\x01" + +/* ecdsa-with-SHA224 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4) + * ecdsa-with-SHA2(3) 1 } */ +#define MBEDTLS_OID_ECDSA_SHA224 MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 "\x01" + +/* ecdsa-with-SHA256 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4) + * ecdsa-with-SHA2(3) 2 } */ +#define MBEDTLS_OID_ECDSA_SHA256 MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 "\x02" + +/* ecdsa-with-SHA384 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4) + * ecdsa-with-SHA2(3) 3 } */ +#define MBEDTLS_OID_ECDSA_SHA384 MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 "\x03" + +/* ecdsa-with-SHA512 OBJECT IDENTIFIER ::= { + * iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4) + * ecdsa-with-SHA2(3) 4 } */ +#define MBEDTLS_OID_ECDSA_SHA512 MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 "\x04" + +/* + * EC key algorithms from RFC 8410 + */ + +#define MBEDTLS_OID_X25519 MBEDTLS_OID_THAWTE "\x6e" /**< id-X25519 OBJECT IDENTIFIER ::= { 1 3 101 110 } */ +#define MBEDTLS_OID_X448 MBEDTLS_OID_THAWTE "\x6f" /**< id-X448 OBJECT IDENTIFIER ::= { 1 3 101 111 } */ +#define MBEDTLS_OID_ED25519 MBEDTLS_OID_THAWTE "\x70" /**< id-Ed25519 OBJECT IDENTIFIER ::= { 1 3 101 112 } */ +#define MBEDTLS_OID_ED448 MBEDTLS_OID_THAWTE "\x71" /**< id-Ed448 OBJECT IDENTIFIER ::= { 1 3 101 113 } */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Base OID descriptor structure + */ +typedef struct mbedtls_oid_descriptor_t { + const char *MBEDTLS_PRIVATE(asn1); /*!< OID ASN.1 representation */ + size_t MBEDTLS_PRIVATE(asn1_len); /*!< length of asn1 */ +#if !defined(MBEDTLS_X509_REMOVE_INFO) + const char *MBEDTLS_PRIVATE(name); /*!< official name (e.g. from RFC) */ + const char *MBEDTLS_PRIVATE(description); /*!< human friendly description */ +#endif +} mbedtls_oid_descriptor_t; + +/** + * \brief Translate an ASN.1 OID into its numeric representation + * (e.g. "\x2A\x86\x48\x86\xF7\x0D" into "1.2.840.113549") + * + * \param buf buffer to put representation in + * \param size size of the buffer + * \param oid OID to translate + * + * \return Length of the string written (excluding final NULL) or + * MBEDTLS_ERR_OID_BUF_TOO_SMALL in case of error + */ +int mbedtls_oid_get_numeric_string(char *buf, size_t size, const mbedtls_asn1_buf *oid); + +/** + * \brief Translate a string containing a dotted-decimal + * representation of an ASN.1 OID into its encoded form + * (e.g. "1.2.840.113549" into "\x2A\x86\x48\x86\xF7\x0D"). + * On success, this function allocates oid->buf from the + * heap. It must be freed by the caller using mbedtls_free(). + * + * \param oid #mbedtls_asn1_buf to populate with the DER-encoded OID + * \param oid_str string representation of the OID to parse + * \param size length of the OID string, not including any null terminator + * + * \return 0 if successful + * \return #MBEDTLS_ERR_ASN1_INVALID_DATA if \p oid_str does not + * represent a valid OID + * \return #MBEDTLS_ERR_ASN1_ALLOC_FAILED if the function fails to + * allocate oid->buf + */ +int mbedtls_oid_from_numeric_string(mbedtls_asn1_buf *oid, const char *oid_str, size_t size); + +/** + * \brief Translate an X.509 extension OID into local values + * + * \param oid OID to use + * \param ext_type place to store the extension type + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_x509_ext_type(const mbedtls_asn1_buf *oid, int *ext_type); + +/** + * \brief Translate an X.509 attribute type OID into the short name + * (e.g. the OID for an X520 Common Name into "CN") + * + * \param oid OID to use + * \param short_name place to store the string pointer + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_attr_short_name(const mbedtls_asn1_buf *oid, const char **short_name); + +/** + * \brief Translate PublicKeyAlgorithm OID into pk_type + * + * \param oid OID to use + * \param pk_alg place to store public key algorithm + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_pk_alg(const mbedtls_asn1_buf *oid, mbedtls_pk_type_t *pk_alg); + +/** + * \brief Translate pk_type into PublicKeyAlgorithm OID + * + * \param pk_alg Public key type to look for + * \param oid place to store ASN.1 OID string pointer + * \param olen length of the OID + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_oid_by_pk_alg(mbedtls_pk_type_t pk_alg, + const char **oid, size_t *olen); + +#if defined(MBEDTLS_PK_HAVE_ECC_KEYS) +/** + * \brief Translate NamedCurve OID into an EC group identifier + * + * \param oid OID to use + * \param grp_id place to store group id + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_ec_grp(const mbedtls_asn1_buf *oid, mbedtls_ecp_group_id *grp_id); + +/** + * \brief Translate EC group identifier into NamedCurve OID + * + * \param grp_id EC group identifier + * \param oid place to store ASN.1 OID string pointer + * \param olen length of the OID + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_oid_by_ec_grp(mbedtls_ecp_group_id grp_id, + const char **oid, size_t *olen); + +/** + * \brief Translate AlgorithmIdentifier OID into an EC group identifier, + * for curves that are directly encoded at this level + * + * \param oid OID to use + * \param grp_id place to store group id + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_ec_grp_algid(const mbedtls_asn1_buf *oid, mbedtls_ecp_group_id *grp_id); + +/** + * \brief Translate EC group identifier into AlgorithmIdentifier OID, + * for curves that are directly encoded at this level + * + * \param grp_id EC group identifier + * \param oid place to store ASN.1 OID string pointer + * \param olen length of the OID + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_oid_by_ec_grp_algid(mbedtls_ecp_group_id grp_id, + const char **oid, size_t *olen); +#endif /* MBEDTLS_PK_HAVE_ECC_KEYS */ + +/** + * \brief Translate SignatureAlgorithm OID into md_type and pk_type + * + * \param oid OID to use + * \param md_alg place to store message digest algorithm + * \param pk_alg place to store public key algorithm + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_sig_alg(const mbedtls_asn1_buf *oid, + mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg); + +/** + * \brief Translate SignatureAlgorithm OID into description + * + * \param oid OID to use + * \param desc place to store string pointer + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_sig_alg_desc(const mbedtls_asn1_buf *oid, const char **desc); + +/** + * \brief Translate md_type and pk_type into SignatureAlgorithm OID + * + * \param md_alg message digest algorithm + * \param pk_alg public key algorithm + * \param oid place to store ASN.1 OID string pointer + * \param olen length of the OID + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_oid_by_sig_alg(mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg, + const char **oid, size_t *olen); + +/** + * \brief Translate hmac algorithm OID into md_type + * + * \param oid OID to use + * \param md_hmac place to store message hmac algorithm + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_md_hmac(const mbedtls_asn1_buf *oid, mbedtls_md_type_t *md_hmac); + +/** + * \brief Translate hash algorithm OID into md_type + * + * \param oid OID to use + * \param md_alg place to store message digest algorithm + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_md_alg(const mbedtls_asn1_buf *oid, mbedtls_md_type_t *md_alg); + +#if !defined(MBEDTLS_X509_REMOVE_INFO) +/** + * \brief Translate Extended Key Usage OID into description + * + * \param oid OID to use + * \param desc place to store string pointer + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_extended_key_usage(const mbedtls_asn1_buf *oid, const char **desc); +#endif + +/** + * \brief Translate certificate policies OID into description + * + * \param oid OID to use + * \param desc place to store string pointer + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_certificate_policies(const mbedtls_asn1_buf *oid, const char **desc); + +/** + * \brief Translate md_type into hash algorithm OID + * + * \param md_alg message digest algorithm + * \param oid place to store ASN.1 OID string pointer + * \param olen length of the OID + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_oid_by_md(mbedtls_md_type_t md_alg, const char **oid, size_t *olen); + +#if defined(MBEDTLS_CIPHER_C) +/** + * \brief Translate encryption algorithm OID into cipher_type + * + * \param oid OID to use + * \param cipher_alg place to store cipher algorithm + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_cipher_alg(const mbedtls_asn1_buf *oid, mbedtls_cipher_type_t *cipher_alg); +#endif /* MBEDTLS_CIPHER_C */ + +#if defined(MBEDTLS_PKCS12_C) +/** + * \brief Translate PKCS#12 PBE algorithm OID into md_type and + * cipher_type + * + * \param oid OID to use + * \param md_alg place to store message digest algorithm + * \param cipher_alg place to store cipher algorithm + * + * \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND + */ +int mbedtls_oid_get_pkcs12_pbe_alg(const mbedtls_asn1_buf *oid, mbedtls_md_type_t *md_alg, + mbedtls_cipher_type_t *cipher_alg); +#endif /* MBEDTLS_PKCS12_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* oid.h */ diff --git a/include/mbedtls/pem.h b/include/mbedtls/pem.h new file mode 100644 index 0000000..cc617a9 --- /dev/null +++ b/include/mbedtls/pem.h @@ -0,0 +1,160 @@ +/** + * \file pem.h + * + * \brief Privacy Enhanced Mail (PEM) decoding + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_PEM_H +#define MBEDTLS_PEM_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stddef.h> + +/** + * \name PEM Error codes + * These error codes are returned in case of errors reading the + * PEM data. + * \{ + */ +/** No PEM header or footer found. */ +#define MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT -0x1080 +/** PEM string is not as expected. */ +#define MBEDTLS_ERR_PEM_INVALID_DATA -0x1100 +/** Failed to allocate memory. */ +#define MBEDTLS_ERR_PEM_ALLOC_FAILED -0x1180 +/** RSA IV is not in hex-format. */ +#define MBEDTLS_ERR_PEM_INVALID_ENC_IV -0x1200 +/** Unsupported key encryption algorithm. */ +#define MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG -0x1280 +/** Private key password can't be empty. */ +#define MBEDTLS_ERR_PEM_PASSWORD_REQUIRED -0x1300 +/** Given private key password does not allow for correct decryption. */ +#define MBEDTLS_ERR_PEM_PASSWORD_MISMATCH -0x1380 +/** Unavailable feature, e.g. hashing/encryption combination. */ +#define MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE -0x1400 +/** Bad input parameters to function. */ +#define MBEDTLS_ERR_PEM_BAD_INPUT_DATA -0x1480 +/** \} name PEM Error codes */ + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(MBEDTLS_PEM_PARSE_C) +/** + * \brief PEM context structure + */ +typedef struct mbedtls_pem_context { + unsigned char *MBEDTLS_PRIVATE(buf); /*!< buffer for decoded data */ + size_t MBEDTLS_PRIVATE(buflen); /*!< length of the buffer */ + unsigned char *MBEDTLS_PRIVATE(info); /*!< buffer for extra header information */ +} +mbedtls_pem_context; + +/** + * \brief PEM context setup + * + * \param ctx context to be initialized + */ +void mbedtls_pem_init(mbedtls_pem_context *ctx); + +/** + * \brief Read a buffer for PEM information and store the resulting + * data into the specified context buffers. + * + * \param ctx context to use + * \param header header string to seek and expect + * \param footer footer string to seek and expect + * \param data source data to look in (must be nul-terminated) + * \param pwd password for decryption (can be NULL) + * \param pwdlen length of password + * \param use_len destination for total length used (set after header is + * correctly read, so unless you get + * MBEDTLS_ERR_PEM_BAD_INPUT_DATA or + * MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT, use_len is + * the length to skip) + * + * \note Attempts to check password correctness by verifying if + * the decrypted text starts with an ASN.1 sequence of + * appropriate length + * + * \note \c mbedtls_pem_free must be called on PEM context before + * the PEM context can be reused in another call to + * \c mbedtls_pem_read_buffer + * + * \return 0 on success, or a specific PEM error code + */ +int mbedtls_pem_read_buffer(mbedtls_pem_context *ctx, const char *header, const char *footer, + const unsigned char *data, + const unsigned char *pwd, + size_t pwdlen, size_t *use_len); + +/** + * \brief Get the pointer to the decoded binary data in a PEM context. + * + * \param ctx PEM context to access. + * \param buflen On success, this will contain the length of the binary data. + * This must be a valid (non-null) pointer. + * + * \return A pointer to the decoded binary data. + * + * \note The returned pointer remains valid only until \p ctx is + modified or freed. + */ +static inline const unsigned char *mbedtls_pem_get_buffer(mbedtls_pem_context *ctx, size_t *buflen) +{ + *buflen = ctx->MBEDTLS_PRIVATE(buflen); + return ctx->MBEDTLS_PRIVATE(buf); +} + + +/** + * \brief PEM context memory freeing + * + * \param ctx context to be freed + */ +void mbedtls_pem_free(mbedtls_pem_context *ctx); +#endif /* MBEDTLS_PEM_PARSE_C */ + +#if defined(MBEDTLS_PEM_WRITE_C) +/** + * \brief Write a buffer of PEM information from a DER encoded + * buffer. + * + * \param header The header string to write. + * \param footer The footer string to write. + * \param der_data The DER data to encode. + * \param der_len The length of the DER data \p der_data in Bytes. + * \param buf The buffer to write to. + * \param buf_len The length of the output buffer \p buf in Bytes. + * \param olen The address at which to store the total length written + * or required (if \p buf_len is not enough). + * + * \note You may pass \c NULL for \p buf and \c 0 for \p buf_len + * to request the length of the resulting PEM buffer in + * `*olen`. + * + * \note This function may be called with overlapping \p der_data + * and \p buf buffers. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL if \p buf isn't large + * enough to hold the PEM buffer. In this case, `*olen` holds + * the required minimum size of \p buf. + * \return Another PEM or BASE64 error code on other kinds of failure. + */ +int mbedtls_pem_write_buffer(const char *header, const char *footer, + const unsigned char *der_data, size_t der_len, + unsigned char *buf, size_t buf_len, size_t *olen); +#endif /* MBEDTLS_PEM_WRITE_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* pem.h */ diff --git a/include/mbedtls/pk.h b/include/mbedtls/pk.h new file mode 100644 index 0000000..24b1188 --- /dev/null +++ b/include/mbedtls/pk.h @@ -0,0 +1,1091 @@ +/** + * \file pk.h + * + * \brief Public Key abstraction layer + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_PK_H +#define MBEDTLS_PK_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/md.h" + +#if defined(MBEDTLS_RSA_C) +#include "mbedtls/rsa.h" +#endif + +#if defined(MBEDTLS_ECP_C) +#include "mbedtls/ecp.h" +#endif + +#if defined(MBEDTLS_ECDSA_C) +#include "mbedtls/ecdsa.h" +#endif + +#if defined(MBEDTLS_USE_PSA_CRYPTO) || defined(MBEDTLS_PSA_CRYPTO_C) +#include "psa/crypto.h" +#endif + +/** Memory allocation failed. */ +#define MBEDTLS_ERR_PK_ALLOC_FAILED -0x3F80 +/** Type mismatch, eg attempt to encrypt with an ECDSA key */ +#define MBEDTLS_ERR_PK_TYPE_MISMATCH -0x3F00 +/** Bad input parameters to function. */ +#define MBEDTLS_ERR_PK_BAD_INPUT_DATA -0x3E80 +/** Read/write of file failed. */ +#define MBEDTLS_ERR_PK_FILE_IO_ERROR -0x3E00 +/** Unsupported key version */ +#define MBEDTLS_ERR_PK_KEY_INVALID_VERSION -0x3D80 +/** Invalid key tag or value. */ +#define MBEDTLS_ERR_PK_KEY_INVALID_FORMAT -0x3D00 +/** Key algorithm is unsupported (only RSA and EC are supported). */ +#define MBEDTLS_ERR_PK_UNKNOWN_PK_ALG -0x3C80 +/** Private key password can't be empty. */ +#define MBEDTLS_ERR_PK_PASSWORD_REQUIRED -0x3C00 +/** Given private key password does not allow for correct decryption. */ +#define MBEDTLS_ERR_PK_PASSWORD_MISMATCH -0x3B80 +/** The pubkey tag or value is invalid (only RSA and EC are supported). */ +#define MBEDTLS_ERR_PK_INVALID_PUBKEY -0x3B00 +/** The algorithm tag or value is invalid. */ +#define MBEDTLS_ERR_PK_INVALID_ALG -0x3A80 +/** Elliptic curve is unsupported (only NIST curves are supported). */ +#define MBEDTLS_ERR_PK_UNKNOWN_NAMED_CURVE -0x3A00 +/** Unavailable feature, e.g. RSA disabled for RSA key. */ +#define MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE -0x3980 +/** The buffer contains a valid signature followed by more data. */ +#define MBEDTLS_ERR_PK_SIG_LEN_MISMATCH -0x3900 +/** The output buffer is too small. */ +#define MBEDTLS_ERR_PK_BUFFER_TOO_SMALL -0x3880 + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Public key types + */ +typedef enum { + MBEDTLS_PK_NONE=0, + MBEDTLS_PK_RSA, + MBEDTLS_PK_ECKEY, + MBEDTLS_PK_ECKEY_DH, + MBEDTLS_PK_ECDSA, + MBEDTLS_PK_RSA_ALT, + MBEDTLS_PK_RSASSA_PSS, + MBEDTLS_PK_OPAQUE, +} mbedtls_pk_type_t; + +/** + * \brief Options for RSASSA-PSS signature verification. + * See \c mbedtls_rsa_rsassa_pss_verify_ext() + */ +typedef struct mbedtls_pk_rsassa_pss_options { + /** The digest to use for MGF1 in PSS. + * + * \note When #MBEDTLS_USE_PSA_CRYPTO is enabled and #MBEDTLS_RSA_C is + * disabled, this must be equal to the \c md_alg argument passed + * to mbedtls_pk_verify_ext(). In a future version of the library, + * this constraint may apply whenever #MBEDTLS_USE_PSA_CRYPTO is + * enabled regardless of the status of #MBEDTLS_RSA_C. + */ + mbedtls_md_type_t mgf1_hash_id; + + /** The expected length of the salt, in bytes. This may be + * #MBEDTLS_RSA_SALT_LEN_ANY to accept any salt length. + * + * \note When #MBEDTLS_USE_PSA_CRYPTO is enabled, only + * #MBEDTLS_RSA_SALT_LEN_ANY is valid. Any other value may be + * ignored (allowing any salt length). + */ + int expected_salt_len; + +} mbedtls_pk_rsassa_pss_options; + +/** + * \brief Maximum size of a signature made by mbedtls_pk_sign(). + */ +/* We need to set MBEDTLS_PK_SIGNATURE_MAX_SIZE to the maximum signature + * size among the supported signature types. Do it by starting at 0, + * then incrementally increasing to be large enough for each supported + * signature mechanism. + * + * The resulting value can be 0, for example if MBEDTLS_ECDH_C is enabled + * (which allows the pk module to be included) but neither MBEDTLS_ECDSA_C + * nor MBEDTLS_RSA_C nor any opaque signature mechanism (PSA or RSA_ALT). + */ +#define MBEDTLS_PK_SIGNATURE_MAX_SIZE 0 + +#if (defined(MBEDTLS_RSA_C) || defined(MBEDTLS_PK_RSA_ALT_SUPPORT)) && \ + MBEDTLS_MPI_MAX_SIZE > MBEDTLS_PK_SIGNATURE_MAX_SIZE +/* For RSA, the signature can be as large as the bignum module allows. + * For RSA_ALT, the signature size is not necessarily tied to what the + * bignum module can do, but in the absence of any specific setting, + * we use that (rsa_alt_sign_wrap in library/pk_wrap.h will check). */ +#undef MBEDTLS_PK_SIGNATURE_MAX_SIZE +#define MBEDTLS_PK_SIGNATURE_MAX_SIZE MBEDTLS_MPI_MAX_SIZE +#endif + +#if defined(MBEDTLS_ECDSA_C) && \ + MBEDTLS_ECDSA_MAX_LEN > MBEDTLS_PK_SIGNATURE_MAX_SIZE +/* For ECDSA, the ecdsa module exports a constant for the maximum + * signature size. */ +#undef MBEDTLS_PK_SIGNATURE_MAX_SIZE +#define MBEDTLS_PK_SIGNATURE_MAX_SIZE MBEDTLS_ECDSA_MAX_LEN +#endif + +#if defined(MBEDTLS_USE_PSA_CRYPTO) +#if PSA_SIGNATURE_MAX_SIZE > MBEDTLS_PK_SIGNATURE_MAX_SIZE +/* PSA_SIGNATURE_MAX_SIZE is the maximum size of a signature made + * through the PSA API in the PSA representation. */ +#undef MBEDTLS_PK_SIGNATURE_MAX_SIZE +#define MBEDTLS_PK_SIGNATURE_MAX_SIZE PSA_SIGNATURE_MAX_SIZE +#endif + +#if PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE + 11 > MBEDTLS_PK_SIGNATURE_MAX_SIZE +/* The Mbed TLS representation is different for ECDSA signatures: + * PSA uses the raw concatenation of r and s, + * whereas Mbed TLS uses the ASN.1 representation (SEQUENCE of two INTEGERs). + * Add the overhead of ASN.1: up to (1+2) + 2 * (1+2+1) for the + * types, lengths (represented by up to 2 bytes), and potential leading + * zeros of the INTEGERs and the SEQUENCE. */ +#undef MBEDTLS_PK_SIGNATURE_MAX_SIZE +#define MBEDTLS_PK_SIGNATURE_MAX_SIZE (PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE + 11) +#endif +#endif /* defined(MBEDTLS_USE_PSA_CRYPTO) */ + +/* Internal helper to define which fields in the pk_context structure below + * should be used for EC keys: legacy ecp_keypair or the raw (PSA friendly) + * format. It should be noted that this only affects how data is stored, not + * which functions are used for various operations. The overall picture looks + * like this: + * - if USE_PSA is not defined and ECP_C is defined then use ecp_keypair data + * structure and legacy functions + * - if USE_PSA is defined and + * - if ECP_C then use ecp_keypair structure, convert data to a PSA friendly + * format and use PSA functions + * - if !ECP_C then use new raw data and PSA functions directly. + * + * The main reason for the "intermediate" (USE_PSA + ECP_C) above is that as long + * as ECP_C is defined mbedtls_pk_ec() gives the user a read/write access to the + * ecp_keypair structure inside the pk_context so they can modify it using + * ECP functions which are not under PK module's control. + */ +#if defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY) && \ + !defined(MBEDTLS_ECP_C) +#define MBEDTLS_PK_USE_PSA_EC_DATA +#endif + +/* Helper symbol to state that the PK module has support for EC keys. This + * can either be provided through the legacy ECP solution or through the + * PSA friendly MBEDTLS_PK_USE_PSA_EC_DATA. */ +#if defined(MBEDTLS_PK_USE_PSA_EC_DATA) || defined(MBEDTLS_ECP_C) +#define MBEDTLS_PK_HAVE_ECC_KEYS +#endif /* MBEDTLS_PK_USE_PSA_EC_DATA || MBEDTLS_ECP_C */ + +/** + * \brief Types for interfacing with the debug module + */ +typedef enum { + MBEDTLS_PK_DEBUG_NONE = 0, + MBEDTLS_PK_DEBUG_MPI, + MBEDTLS_PK_DEBUG_ECP, + MBEDTLS_PK_DEBUG_PSA_EC, +} mbedtls_pk_debug_type; + +/** + * \brief Item to send to the debug module + */ +typedef struct mbedtls_pk_debug_item { + mbedtls_pk_debug_type MBEDTLS_PRIVATE(type); + const char *MBEDTLS_PRIVATE(name); + void *MBEDTLS_PRIVATE(value); +} mbedtls_pk_debug_item; + +/** Maximum number of item send for debugging, plus 1 */ +#define MBEDTLS_PK_DEBUG_MAX_ITEMS 3 + +/** + * \brief Public key information and operations + * + * \note The library does not support custom pk info structures, + * only built-in structures returned by + * mbedtls_cipher_info_from_type(). + */ +typedef struct mbedtls_pk_info_t mbedtls_pk_info_t; + +#define MBEDTLS_PK_MAX_EC_PUBKEY_RAW_LEN \ + PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) +/** + * \brief Public key container + */ +typedef struct mbedtls_pk_context { + const mbedtls_pk_info_t *MBEDTLS_PRIVATE(pk_info); /**< Public key information */ + void *MBEDTLS_PRIVATE(pk_ctx); /**< Underlying public key context */ + /* The following field is used to store the ID of a private key in the + * following cases: + * - opaque key when MBEDTLS_PSA_CRYPTO_C is defined + * - normal key when MBEDTLS_PK_USE_PSA_EC_DATA is defined. In this case: + * - the pk_ctx above is not not used to store the private key anymore. + * Actually that field not populated at all in this case because also + * the public key will be stored in raw format as explained below + * - this ID is used for all private key operations (ex: sign, check + * key pair, key write, etc) using PSA functions + * + * Note: this private key storing solution only affects EC keys, not the + * other ones. The latters still use the pk_ctx to store their own + * context. + * + * Note: this priv_id is guarded by MBEDTLS_PSA_CRYPTO_C and not by + * MBEDTLS_PK_USE_PSA_EC_DATA (as the public counterpart below) because, + * when working with opaque keys, it can be used also in + * mbedtls_pk_sign_ext for RSA keys. */ +#if defined(MBEDTLS_PSA_CRYPTO_C) + mbedtls_svc_key_id_t MBEDTLS_PRIVATE(priv_id); /**< Key ID for opaque keys */ +#endif /* MBEDTLS_PSA_CRYPTO_C */ + /* The following fields are meant for storing the public key in raw format + * which is handy for: + * - easily importing it into the PSA context + * - reducing the ECP module dependencies in the PK one. + * + * When MBEDTLS_PK_USE_PSA_EC_DATA is enabled: + * - the pk_ctx above is not used anymore for storing the public key + * inside the ecp_keypair structure + * - the following fields are used for all public key operations: signature + * verify, key pair check and key write. + * Of course, when MBEDTLS_PK_USE_PSA_EC_DATA is not enabled, the legacy + * ecp_keypair structure is used for storing the public key and performing + * all the operations. + * + * Note: This new public key storing solution only works for EC keys, not + * other ones. The latters still use pk_ctx to store their own + * context. + */ +#if defined(MBEDTLS_PK_USE_PSA_EC_DATA) + uint8_t MBEDTLS_PRIVATE(pub_raw)[MBEDTLS_PK_MAX_EC_PUBKEY_RAW_LEN]; /**< Raw public key */ + size_t MBEDTLS_PRIVATE(pub_raw_len); /**< Valid bytes in "pub_raw" */ + psa_ecc_family_t MBEDTLS_PRIVATE(ec_family); /**< EC family of pk */ + size_t MBEDTLS_PRIVATE(ec_bits); /**< Curve's bits of pk */ +#endif /* MBEDTLS_PK_USE_PSA_EC_DATA */ +} mbedtls_pk_context; + +#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) +/** + * \brief Context for resuming operations + */ +typedef struct { + const mbedtls_pk_info_t *MBEDTLS_PRIVATE(pk_info); /**< Public key information */ + void *MBEDTLS_PRIVATE(rs_ctx); /**< Underlying restart context */ +} mbedtls_pk_restart_ctx; +#else /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */ +/* Now we can declare functions that take a pointer to that */ +typedef void mbedtls_pk_restart_ctx; +#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */ + +#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT) +/** + * \brief Types for RSA-alt abstraction + */ +typedef int (*mbedtls_pk_rsa_alt_decrypt_func)(void *ctx, size_t *olen, + const unsigned char *input, unsigned char *output, + size_t output_max_len); +typedef int (*mbedtls_pk_rsa_alt_sign_func)(void *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + mbedtls_md_type_t md_alg, unsigned int hashlen, + const unsigned char *hash, unsigned char *sig); +typedef size_t (*mbedtls_pk_rsa_alt_key_len_func)(void *ctx); +#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */ + +/** + * \brief Return information associated with the given PK type + * + * \param pk_type PK type to search for. + * + * \return The PK info associated with the type or NULL if not found. + */ +const mbedtls_pk_info_t *mbedtls_pk_info_from_type(mbedtls_pk_type_t pk_type); + +/** + * \brief Initialize a #mbedtls_pk_context (as NONE). + * + * \param ctx The context to initialize. + * This must not be \c NULL. + */ +void mbedtls_pk_init(mbedtls_pk_context *ctx); + +/** + * \brief Free the components of a #mbedtls_pk_context. + * + * \param ctx The context to clear. It must have been initialized. + * If this is \c NULL, this function does nothing. + * + * \note For contexts that have been set up with + * mbedtls_pk_setup_opaque(), this does not free the underlying + * PSA key and you still need to call psa_destroy_key() + * independently if you want to destroy that key. + */ +void mbedtls_pk_free(mbedtls_pk_context *ctx); + +#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) +/** + * \brief Initialize a restart context + * + * \param ctx The context to initialize. + * This must not be \c NULL. + */ +void mbedtls_pk_restart_init(mbedtls_pk_restart_ctx *ctx); + +/** + * \brief Free the components of a restart context + * + * \param ctx The context to clear. It must have been initialized. + * If this is \c NULL, this function does nothing. + */ +void mbedtls_pk_restart_free(mbedtls_pk_restart_ctx *ctx); +#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */ + +/** + * \brief Initialize a PK context with the information given + * and allocates the type-specific PK subcontext. + * + * \param ctx Context to initialize. It must not have been set + * up yet (type #MBEDTLS_PK_NONE). + * \param info Information to use + * + * \return 0 on success, + * MBEDTLS_ERR_PK_BAD_INPUT_DATA on invalid input, + * MBEDTLS_ERR_PK_ALLOC_FAILED on allocation failure. + * + * \note For contexts holding an RSA-alt key, use + * \c mbedtls_pk_setup_rsa_alt() instead. + */ +int mbedtls_pk_setup(mbedtls_pk_context *ctx, const mbedtls_pk_info_t *info); + +#if defined(MBEDTLS_USE_PSA_CRYPTO) +/** + * \brief Initialize a PK context to wrap a PSA key. + * + * \note This function replaces mbedtls_pk_setup() for contexts + * that wrap a (possibly opaque) PSA key instead of + * storing and manipulating the key material directly. + * + * \param ctx The context to initialize. It must be empty (type NONE). + * \param key The PSA key to wrap, which must hold an ECC or RSA key + * pair (see notes below). + * + * \note The wrapped key must remain valid as long as the + * wrapping PK context is in use, that is at least between + * the point this function is called and the point + * mbedtls_pk_free() is called on this context. The wrapped + * key might then be independently used or destroyed. + * + * \note This function is currently only available for ECC or RSA + * key pairs (that is, keys containing private key material). + * Support for other key types may be added later. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_PK_BAD_INPUT_DATA on invalid input + * (context already used, invalid key identifier). + * \return #MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE if the key is not an + * ECC key pair. + * \return #MBEDTLS_ERR_PK_ALLOC_FAILED on allocation failure. + */ +int mbedtls_pk_setup_opaque(mbedtls_pk_context *ctx, + const mbedtls_svc_key_id_t key); +#endif /* MBEDTLS_USE_PSA_CRYPTO */ + +#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT) +/** + * \brief Initialize an RSA-alt context + * + * \param ctx Context to initialize. It must not have been set + * up yet (type #MBEDTLS_PK_NONE). + * \param key RSA key pointer + * \param decrypt_func Decryption function + * \param sign_func Signing function + * \param key_len_func Function returning key length in bytes + * + * \return 0 on success, or MBEDTLS_ERR_PK_BAD_INPUT_DATA if the + * context wasn't already initialized as RSA_ALT. + * + * \note This function replaces \c mbedtls_pk_setup() for RSA-alt. + */ +int mbedtls_pk_setup_rsa_alt(mbedtls_pk_context *ctx, void *key, + mbedtls_pk_rsa_alt_decrypt_func decrypt_func, + mbedtls_pk_rsa_alt_sign_func sign_func, + mbedtls_pk_rsa_alt_key_len_func key_len_func); +#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */ + +/** + * \brief Get the size in bits of the underlying key + * + * \param ctx The context to query. It must have been initialized. + * + * \return Key size in bits, or 0 on error + */ +size_t mbedtls_pk_get_bitlen(const mbedtls_pk_context *ctx); + +/** + * \brief Get the length in bytes of the underlying key + * + * \param ctx The context to query. It must have been initialized. + * + * \return Key length in bytes, or 0 on error + */ +static inline size_t mbedtls_pk_get_len(const mbedtls_pk_context *ctx) +{ + return (mbedtls_pk_get_bitlen(ctx) + 7) / 8; +} + +/** + * \brief Tell if a context can do the operation given by type + * + * \param ctx The context to query. It must have been initialized. + * \param type The desired type. + * + * \return 1 if the context can do operations on the given type. + * \return 0 if the context cannot do the operations on the given + * type. This is always the case for a context that has + * been initialized but not set up, or that has been + * cleared with mbedtls_pk_free(). + */ +int mbedtls_pk_can_do(const mbedtls_pk_context *ctx, mbedtls_pk_type_t type); + +#if defined(MBEDTLS_USE_PSA_CRYPTO) +/** + * \brief Tell if context can do the operation given by PSA algorithm + * + * \param ctx The context to query. It must have been initialized. + * \param alg PSA algorithm to check against, the following are allowed: + * PSA_ALG_RSA_PKCS1V15_SIGN(hash), + * PSA_ALG_RSA_PSS(hash), + * PSA_ALG_RSA_PKCS1V15_CRYPT, + * PSA_ALG_ECDSA(hash), + * PSA_ALG_ECDH, where hash is a specific hash. + * \param usage PSA usage flag to check against, must be composed of: + * PSA_KEY_USAGE_SIGN_HASH + * PSA_KEY_USAGE_DECRYPT + * PSA_KEY_USAGE_DERIVE. + * Context key must match all passed usage flags. + * + * \warning Since the set of allowed algorithms and usage flags may be + * expanded in the future, the return value \c 0 should not + * be taken in account for non-allowed algorithms and usage + * flags. + * + * \return 1 if the context can do operations on the given type. + * \return 0 if the context cannot do the operations on the given + * type, for non-allowed algorithms and usage flags, or + * for a context that has been initialized but not set up + * or that has been cleared with mbedtls_pk_free(). + */ +int mbedtls_pk_can_do_ext(const mbedtls_pk_context *ctx, psa_algorithm_t alg, + psa_key_usage_t usage); +#endif /* MBEDTLS_USE_PSA_CRYPTO */ + +/** + * \brief Verify signature (including padding if relevant). + * + * \param ctx The PK context to use. It must have been set up. + * \param md_alg Hash algorithm used. + * This can be #MBEDTLS_MD_NONE if the signature algorithm + * does not rely on a hash algorithm (non-deterministic + * ECDSA, RSA PKCS#1 v1.5). + * For PKCS#1 v1.5, if \p md_alg is #MBEDTLS_MD_NONE, then + * \p hash is the DigestInfo structure used by RFC 8017 + * §9.2 steps 3–6. If \p md_alg is a valid hash + * algorithm then \p hash is the digest itself, and this + * function calculates the DigestInfo encoding internally. + * \param hash Hash of the message to sign + * \param hash_len Hash length + * \param sig Signature to verify + * \param sig_len Signature length + * + * \return 0 on success (signature is valid), + * #MBEDTLS_ERR_PK_SIG_LEN_MISMATCH if there is a valid + * signature in \p sig but its length is less than \p sig_len, + * or a specific error code. + * + * \note For RSA keys, the default padding type is PKCS#1 v1.5. + * Use \c mbedtls_pk_verify_ext( MBEDTLS_PK_RSASSA_PSS, ... ) + * to verify RSASSA_PSS signatures. + */ +int mbedtls_pk_verify(mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + const unsigned char *sig, size_t sig_len); + +/** + * \brief Restartable version of \c mbedtls_pk_verify() + * + * \note Performs the same job as \c mbedtls_pk_verify(), but can + * return early and restart according to the limit set with + * \c mbedtls_ecp_set_max_ops() to reduce blocking for ECC + * operations. For RSA, same as \c mbedtls_pk_verify(). + * + * \param ctx The PK context to use. It must have been set up. + * \param md_alg Hash algorithm used (see notes) + * \param hash Hash of the message to sign + * \param hash_len Hash length or 0 (see notes) + * \param sig Signature to verify + * \param sig_len Signature length + * \param rs_ctx Restart context (NULL to disable restart) + * + * \return See \c mbedtls_pk_verify(), or + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of + * operations was reached: see \c mbedtls_ecp_set_max_ops(). + */ +int mbedtls_pk_verify_restartable(mbedtls_pk_context *ctx, + mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + const unsigned char *sig, size_t sig_len, + mbedtls_pk_restart_ctx *rs_ctx); + +/** + * \brief Verify signature, with options. + * (Includes verification of the padding depending on type.) + * + * \param type Signature type (inc. possible padding type) to verify + * \param options Pointer to type-specific options, or NULL + * \param ctx The PK context to use. It must have been set up. + * \param md_alg Hash algorithm used (see notes) + * \param hash Hash of the message to sign + * \param hash_len Hash length or 0 (see notes) + * \param sig Signature to verify + * \param sig_len Signature length + * + * \return 0 on success (signature is valid), + * #MBEDTLS_ERR_PK_TYPE_MISMATCH if the PK context can't be + * used for this type of signatures, + * #MBEDTLS_ERR_PK_SIG_LEN_MISMATCH if there is a valid + * signature in \p sig but its length is less than \p sig_len, + * or a specific error code. + * + * \note If hash_len is 0, then the length associated with md_alg + * is used instead, or an error returned if it is invalid. + * + * \note md_alg may be MBEDTLS_MD_NONE, only if hash_len != 0 + * + * \note If type is MBEDTLS_PK_RSASSA_PSS, then options must point + * to a mbedtls_pk_rsassa_pss_options structure, + * otherwise it must be NULL. Note that if + * #MBEDTLS_USE_PSA_CRYPTO is defined, the salt length is not + * verified as PSA_ALG_RSA_PSS_ANY_SALT is used. + */ +int mbedtls_pk_verify_ext(mbedtls_pk_type_t type, const void *options, + mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + const unsigned char *sig, size_t sig_len); + +/** + * \brief Make signature, including padding if relevant. + * + * \param ctx The PK context to use. It must have been set up + * with a private key. + * \param md_alg Hash algorithm used (see notes) + * \param hash Hash of the message to sign + * \param hash_len Hash length + * \param sig Place to write the signature. + * It must have enough room for the signature. + * #MBEDTLS_PK_SIGNATURE_MAX_SIZE is always enough. + * You may use a smaller buffer if it is large enough + * given the key type. + * \param sig_size The size of the \p sig buffer in bytes. + * \param sig_len On successful return, + * the number of bytes written to \p sig. + * \param f_rng RNG function, must not be \c NULL. + * \param p_rng RNG parameter + * + * \return 0 on success, or a specific error code. + * + * \note For RSA keys, the default padding type is PKCS#1 v1.5. + * There is no interface in the PK module to make RSASSA-PSS + * signatures yet. + * + * \note For RSA, md_alg may be MBEDTLS_MD_NONE if hash_len != 0. + * For ECDSA, md_alg may never be MBEDTLS_MD_NONE. + */ +int mbedtls_pk_sign(mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + unsigned char *sig, size_t sig_size, size_t *sig_len, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng); + +#if defined(MBEDTLS_PSA_CRYPTO_C) +/** + * \brief Make signature given a signature type. + * + * \param pk_type Signature type. + * \param ctx The PK context to use. It must have been set up + * with a private key. + * \param md_alg Hash algorithm used (see notes) + * \param hash Hash of the message to sign + * \param hash_len Hash length + * \param sig Place to write the signature. + * It must have enough room for the signature. + * #MBEDTLS_PK_SIGNATURE_MAX_SIZE is always enough. + * You may use a smaller buffer if it is large enough + * given the key type. + * \param sig_size The size of the \p sig buffer in bytes. + * \param sig_len On successful return, + * the number of bytes written to \p sig. + * \param f_rng RNG function, must not be \c NULL. + * \param p_rng RNG parameter + * + * \return 0 on success, or a specific error code. + * + * \note When \p pk_type is #MBEDTLS_PK_RSASSA_PSS, + * see #PSA_ALG_RSA_PSS for a description of PSS options used. + * + * \note For RSA, md_alg may be MBEDTLS_MD_NONE if hash_len != 0. + * For ECDSA, md_alg may never be MBEDTLS_MD_NONE. + * + */ +int mbedtls_pk_sign_ext(mbedtls_pk_type_t pk_type, + mbedtls_pk_context *ctx, + mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + unsigned char *sig, size_t sig_size, size_t *sig_len, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); +#endif /* MBEDTLS_PSA_CRYPTO_C */ + +/** + * \brief Restartable version of \c mbedtls_pk_sign() + * + * \note Performs the same job as \c mbedtls_pk_sign(), but can + * return early and restart according to the limit set with + * \c mbedtls_ecp_set_max_ops() to reduce blocking for ECC + * operations. For RSA, same as \c mbedtls_pk_sign(). + * + * \param ctx The PK context to use. It must have been set up + * with a private key. + * \param md_alg Hash algorithm used (see notes for mbedtls_pk_sign()) + * \param hash Hash of the message to sign + * \param hash_len Hash length + * \param sig Place to write the signature. + * It must have enough room for the signature. + * #MBEDTLS_PK_SIGNATURE_MAX_SIZE is always enough. + * You may use a smaller buffer if it is large enough + * given the key type. + * \param sig_size The size of the \p sig buffer in bytes. + * \param sig_len On successful return, + * the number of bytes written to \p sig. + * \param f_rng RNG function, must not be \c NULL. + * \param p_rng RNG parameter + * \param rs_ctx Restart context (NULL to disable restart) + * + * \return See \c mbedtls_pk_sign(). + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of + * operations was reached: see \c mbedtls_ecp_set_max_ops(). + */ +int mbedtls_pk_sign_restartable(mbedtls_pk_context *ctx, + mbedtls_md_type_t md_alg, + const unsigned char *hash, size_t hash_len, + unsigned char *sig, size_t sig_size, size_t *sig_len, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng, + mbedtls_pk_restart_ctx *rs_ctx); + +/** + * \brief Decrypt message (including padding if relevant). + * + * \param ctx The PK context to use. It must have been set up + * with a private key. + * \param input Input to decrypt + * \param ilen Input size + * \param output Decrypted output + * \param olen Decrypted message length + * \param osize Size of the output buffer + * \param f_rng RNG function, must not be \c NULL. + * \param p_rng RNG parameter + * + * \note For RSA keys, the default padding type is PKCS#1 v1.5. + * + * \return 0 on success, or a specific error code. + */ +int mbedtls_pk_decrypt(mbedtls_pk_context *ctx, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, size_t osize, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng); + +/** + * \brief Encrypt message (including padding if relevant). + * + * \param ctx The PK context to use. It must have been set up. + * \param input Message to encrypt + * \param ilen Message size + * \param output Encrypted output + * \param olen Encrypted output length + * \param osize Size of the output buffer + * \param f_rng RNG function, must not be \c NULL. + * \param p_rng RNG parameter + * + * \note \p f_rng is used for padding generation. + * + * \note For RSA keys, the default padding type is PKCS#1 v1.5. + * + * \return 0 on success, or a specific error code. + */ +int mbedtls_pk_encrypt(mbedtls_pk_context *ctx, + const unsigned char *input, size_t ilen, + unsigned char *output, size_t *olen, size_t osize, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng); + +/** + * \brief Check if a public-private pair of keys matches. + * + * \param pub Context holding a public key. + * \param prv Context holding a private (and public) key. + * \param f_rng RNG function, must not be \c NULL. + * \param p_rng RNG parameter + * + * \return \c 0 on success (keys were checked and match each other). + * \return #MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE if the keys could not + * be checked - in that case they may or may not match. + * \return #MBEDTLS_ERR_PK_BAD_INPUT_DATA if a context is invalid. + * \return Another non-zero value if the keys do not match. + */ +int mbedtls_pk_check_pair(const mbedtls_pk_context *pub, + const mbedtls_pk_context *prv, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief Export debug information + * + * \param ctx The PK context to use. It must have been initialized. + * \param items Place to write debug items + * + * \return 0 on success or MBEDTLS_ERR_PK_BAD_INPUT_DATA + */ +int mbedtls_pk_debug(const mbedtls_pk_context *ctx, mbedtls_pk_debug_item *items); + +/** + * \brief Access the type name + * + * \param ctx The PK context to use. It must have been initialized. + * + * \return Type name on success, or "invalid PK" + */ +const char *mbedtls_pk_get_name(const mbedtls_pk_context *ctx); + +/** + * \brief Get the key type + * + * \param ctx The PK context to use. It must have been initialized. + * + * \return Type on success. + * \return #MBEDTLS_PK_NONE for a context that has not been set up. + */ +mbedtls_pk_type_t mbedtls_pk_get_type(const mbedtls_pk_context *ctx); + +#if defined(MBEDTLS_RSA_C) +/** + * Quick access to an RSA context inside a PK context. + * + * \warning This function can only be used when the type of the context, as + * returned by mbedtls_pk_get_type(), is #MBEDTLS_PK_RSA. + * Ensuring that is the caller's responsibility. + * Alternatively, you can check whether this function returns NULL. + * + * \return The internal RSA context held by the PK context, or NULL. + */ +static inline mbedtls_rsa_context *mbedtls_pk_rsa(const mbedtls_pk_context pk) +{ + switch (mbedtls_pk_get_type(&pk)) { + case MBEDTLS_PK_RSA: + return (mbedtls_rsa_context *) (pk).MBEDTLS_PRIVATE(pk_ctx); + default: + return NULL; + } +} +#endif /* MBEDTLS_RSA_C */ + +#if defined(MBEDTLS_ECP_C) +/** + * Quick access to an EC context inside a PK context. + * + * \warning This function can only be used when the type of the context, as + * returned by mbedtls_pk_get_type(), is #MBEDTLS_PK_ECKEY, + * #MBEDTLS_PK_ECKEY_DH, or #MBEDTLS_PK_ECDSA. + * Ensuring that is the caller's responsibility. + * Alternatively, you can check whether this function returns NULL. + * + * \return The internal EC context held by the PK context, or NULL. + */ +static inline mbedtls_ecp_keypair *mbedtls_pk_ec(const mbedtls_pk_context pk) +{ + switch (mbedtls_pk_get_type(&pk)) { + case MBEDTLS_PK_ECKEY: + case MBEDTLS_PK_ECKEY_DH: + case MBEDTLS_PK_ECDSA: + return (mbedtls_ecp_keypair *) (pk).MBEDTLS_PRIVATE(pk_ctx); + default: + return NULL; + } +} +#endif /* MBEDTLS_ECP_C */ + +#if defined(MBEDTLS_PK_PARSE_C) +/** \ingroup pk_module */ +/** + * \brief Parse a private key in PEM or DER format + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param ctx The PK context to fill. It must have been initialized + * but not set up. + * \param key Input buffer to parse. + * The buffer must contain the input exactly, with no + * extra trailing material. For PEM, the buffer must + * contain a null-terminated string. + * \param keylen Size of \b key in bytes. + * For PEM data, this includes the terminating null byte, + * so \p keylen must be equal to `strlen(key) + 1`. + * \param pwd Optional password for decryption. + * Pass \c NULL if expecting a non-encrypted key. + * Pass a string of \p pwdlen bytes if expecting an encrypted + * key; a non-encrypted key will also be accepted. + * The empty password is not supported. + * \param pwdlen Size of the password in bytes. + * Ignored if \p pwd is \c NULL. + * \param f_rng RNG function, must not be \c NULL. Used for blinding. + * \param p_rng RNG parameter + * + * \note On entry, ctx must be empty, either freshly initialised + * with mbedtls_pk_init() or reset with mbedtls_pk_free(). If you need a + * specific key type, check the result with mbedtls_pk_can_do(). + * + * \note The key is also checked for correctness. + * + * \return 0 if successful, or a specific PK or PEM error code + */ +int mbedtls_pk_parse_key(mbedtls_pk_context *ctx, + const unsigned char *key, size_t keylen, + const unsigned char *pwd, size_t pwdlen, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng); + +/** \ingroup pk_module */ +/** + * \brief Parse a public key in PEM or DER format + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param ctx The PK context to fill. It must have been initialized + * but not set up. + * \param key Input buffer to parse. + * The buffer must contain the input exactly, with no + * extra trailing material. For PEM, the buffer must + * contain a null-terminated string. + * \param keylen Size of \b key in bytes. + * For PEM data, this includes the terminating null byte, + * so \p keylen must be equal to `strlen(key) + 1`. + * + * \note On entry, ctx must be empty, either freshly initialised + * with mbedtls_pk_init() or reset with mbedtls_pk_free(). If you need a + * specific key type, check the result with mbedtls_pk_can_do(). + * + * \note For compressed points, see #MBEDTLS_ECP_PF_COMPRESSED for + * limitations. + * + * \note The key is also checked for correctness. + * + * \return 0 if successful, or a specific PK or PEM error code + */ +int mbedtls_pk_parse_public_key(mbedtls_pk_context *ctx, + const unsigned char *key, size_t keylen); + +#if defined(MBEDTLS_FS_IO) +/** \ingroup pk_module */ +/** + * \brief Load and parse a private key + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param ctx The PK context to fill. It must have been initialized + * but not set up. + * \param path filename to read the private key from + * \param password Optional password to decrypt the file. + * Pass \c NULL if expecting a non-encrypted key. + * Pass a null-terminated string if expecting an encrypted + * key; a non-encrypted key will also be accepted. + * The empty password is not supported. + * \param f_rng RNG function, must not be \c NULL. Used for blinding. + * \param p_rng RNG parameter + * + * \note On entry, ctx must be empty, either freshly initialised + * with mbedtls_pk_init() or reset with mbedtls_pk_free(). If you need a + * specific key type, check the result with mbedtls_pk_can_do(). + * + * \note The key is also checked for correctness. + * + * \return 0 if successful, or a specific PK or PEM error code + */ +int mbedtls_pk_parse_keyfile(mbedtls_pk_context *ctx, + const char *path, const char *password, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng); + +/** \ingroup pk_module */ +/** + * \brief Load and parse a public key + * + * \param ctx The PK context to fill. It must have been initialized + * but not set up. + * \param path filename to read the public key from + * + * \note On entry, ctx must be empty, either freshly initialised + * with mbedtls_pk_init() or reset with mbedtls_pk_free(). If + * you need a specific key type, check the result with + * mbedtls_pk_can_do(). + * + * \note The key is also checked for correctness. + * + * \return 0 if successful, or a specific PK or PEM error code + */ +int mbedtls_pk_parse_public_keyfile(mbedtls_pk_context *ctx, const char *path); +#endif /* MBEDTLS_FS_IO */ +#endif /* MBEDTLS_PK_PARSE_C */ + +#if defined(MBEDTLS_PK_WRITE_C) +/** + * \brief Write a private key to a PKCS#1 or SEC1 DER structure + * Note: data is written at the end of the buffer! Use the + * return value to determine where you should start + * using the buffer + * + * \param ctx PK context which must contain a valid private key. + * \param buf buffer to write to + * \param size size of the buffer + * + * \return length of data written if successful, or a specific + * error code + */ +int mbedtls_pk_write_key_der(const mbedtls_pk_context *ctx, unsigned char *buf, size_t size); + +/** + * \brief Write a public key to a SubjectPublicKeyInfo DER structure + * Note: data is written at the end of the buffer! Use the + * return value to determine where you should start + * using the buffer + * + * \param ctx PK context which must contain a valid public or private key. + * \param buf buffer to write to + * \param size size of the buffer + * + * \return length of data written if successful, or a specific + * error code + */ +int mbedtls_pk_write_pubkey_der(const mbedtls_pk_context *ctx, unsigned char *buf, size_t size); + +#if defined(MBEDTLS_PEM_WRITE_C) +/** + * \brief Write a public key to a PEM string + * + * \param ctx PK context which must contain a valid public or private key. + * \param buf Buffer to write to. The output includes a + * terminating null byte. + * \param size Size of the buffer in bytes. + * + * \return 0 if successful, or a specific error code + */ +int mbedtls_pk_write_pubkey_pem(const mbedtls_pk_context *ctx, unsigned char *buf, size_t size); + +/** + * \brief Write a private key to a PKCS#1 or SEC1 PEM string + * + * \param ctx PK context which must contain a valid private key. + * \param buf Buffer to write to. The output includes a + * terminating null byte. + * \param size Size of the buffer in bytes. + * + * \return 0 if successful, or a specific error code + */ +int mbedtls_pk_write_key_pem(const mbedtls_pk_context *ctx, unsigned char *buf, size_t size); +#endif /* MBEDTLS_PEM_WRITE_C */ +#endif /* MBEDTLS_PK_WRITE_C */ + +/* + * WARNING: Low-level functions. You probably do not want to use these unless + * you are certain you do ;) + */ + +#if defined(MBEDTLS_PK_PARSE_C) +/** + * \brief Parse a SubjectPublicKeyInfo DER structure + * + * \param p the position in the ASN.1 data + * \param end end of the buffer + * \param pk The PK context to fill. It must have been initialized + * but not set up. + * + * \return 0 if successful, or a specific PK error code + */ +int mbedtls_pk_parse_subpubkey(unsigned char **p, const unsigned char *end, + mbedtls_pk_context *pk); +#endif /* MBEDTLS_PK_PARSE_C */ + +#if defined(MBEDTLS_PK_WRITE_C) +/** + * \brief Write a subjectPublicKey to ASN.1 data + * Note: function works backwards in data buffer + * + * \param p reference to current position pointer + * \param start start of the buffer (for bounds-checking) + * \param key PK context which must contain a valid public or private key. + * + * \return the length written or a negative error code + */ +int mbedtls_pk_write_pubkey(unsigned char **p, unsigned char *start, + const mbedtls_pk_context *key); +#endif /* MBEDTLS_PK_WRITE_C */ + +/* + * Internal module functions. You probably do not want to use these unless you + * know you do. + */ +#if defined(MBEDTLS_FS_IO) +int mbedtls_pk_load_file(const char *path, unsigned char **buf, size_t *n); +#endif + +#if defined(MBEDTLS_USE_PSA_CRYPTO) +/** + * \brief Turn an EC or RSA key into an opaque one. + * + * \warning This is a temporary utility function for tests. It might + * change or be removed at any time without notice. + * + * \param pk Input: the EC or RSA key to import to a PSA key. + * Output: a PK context wrapping that PSA key. + * \param key Output: a PSA key identifier. + * It's the caller's responsibility to call + * psa_destroy_key() on that key identifier after calling + * mbedtls_pk_free() on the PK context. + * \param alg The algorithm to allow for use with that key. + * \param usage The usage to allow for use with that key. + * \param alg2 The secondary algorithm to allow for use with that key. + * + * \return \c 0 if successful. + * \return An Mbed TLS error code otherwise. + */ +int mbedtls_pk_wrap_as_opaque(mbedtls_pk_context *pk, + mbedtls_svc_key_id_t *key, + psa_algorithm_t alg, + psa_key_usage_t usage, + psa_algorithm_t alg2); +#endif /* MBEDTLS_USE_PSA_CRYPTO */ + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_PK_H */ diff --git a/include/mbedtls/pkcs12.h b/include/mbedtls/pkcs12.h new file mode 100644 index 0000000..42e8453 --- /dev/null +++ b/include/mbedtls/pkcs12.h @@ -0,0 +1,186 @@ +/** + * \file pkcs12.h + * + * \brief PKCS#12 Personal Information Exchange Syntax + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_PKCS12_H +#define MBEDTLS_PKCS12_H + +#include "mbedtls/build_info.h" + +#include "mbedtls/md.h" +#include "mbedtls/cipher.h" +#include "mbedtls/asn1.h" + +#include <stddef.h> + +/** Bad input parameters to function. */ +#define MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA -0x1F80 +/** Feature not available, e.g. unsupported encryption scheme. */ +#define MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE -0x1F00 +/** PBE ASN.1 data not as expected. */ +#define MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT -0x1E80 +/** Given private key password does not allow for correct decryption. */ +#define MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH -0x1E00 + +#define MBEDTLS_PKCS12_DERIVE_KEY 1 /**< encryption/decryption key */ +#define MBEDTLS_PKCS12_DERIVE_IV 2 /**< initialization vector */ +#define MBEDTLS_PKCS12_DERIVE_MAC_KEY 3 /**< integrity / MAC key */ + +#define MBEDTLS_PKCS12_PBE_DECRYPT 0 +#define MBEDTLS_PKCS12_PBE_ENCRYPT 1 + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(MBEDTLS_ASN1_PARSE_C) + +#if !defined(MBEDTLS_DEPRECATED_REMOVED) +/** + * \brief PKCS12 Password Based function (encryption / decryption) + * for cipher-based and mbedtls_md-based PBE's + * + * \note When encrypting, #MBEDTLS_CIPHER_PADDING_PKCS7 must + * be enabled at compile time. + * + * \deprecated This function is deprecated and will be removed in a + * future version of the library. + * Please use mbedtls_pkcs12_pbe_ext() instead. + * + * \warning When decrypting: + * - if #MBEDTLS_CIPHER_PADDING_PKCS7 is enabled at compile + * time, this function validates the CBC padding and returns + * #MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH if the padding is + * invalid. Note that this can help active adversaries + * attempting to brute-forcing the password. Note also that + * there is no guarantee that an invalid password will be + * detected (the chances of a valid padding with a random + * password are about 1/255). + * - if #MBEDTLS_CIPHER_PADDING_PKCS7 is disabled at compile + * time, this function does not validate the CBC padding. + * + * \param pbe_params an ASN1 buffer containing the pkcs-12 PbeParams structure + * \param mode either #MBEDTLS_PKCS12_PBE_ENCRYPT or + * #MBEDTLS_PKCS12_PBE_DECRYPT + * \param cipher_type the cipher used + * \param md_type the mbedtls_md used + * \param pwd Latin1-encoded password used. This may only be \c NULL when + * \p pwdlen is 0. No null terminator should be used. + * \param pwdlen length of the password (may be 0) + * \param data the input data + * \param len data length + * \param output Output buffer. + * On success, it contains the encrypted or decrypted data, + * possibly followed by the CBC padding. + * On failure, the content is indeterminate. + * For decryption, there must be enough room for \p len + * bytes. + * For encryption, there must be enough room for + * \p len + 1 bytes, rounded up to the block size of + * the block cipher identified by \p pbe_params. + * + * \return 0 if successful, or a MBEDTLS_ERR_XXX code + */ +int MBEDTLS_DEPRECATED mbedtls_pkcs12_pbe(mbedtls_asn1_buf *pbe_params, int mode, + mbedtls_cipher_type_t cipher_type, + mbedtls_md_type_t md_type, + const unsigned char *pwd, size_t pwdlen, + const unsigned char *data, size_t len, + unsigned char *output); +#endif /* MBEDTLS_DEPRECATED_REMOVED */ + +#if defined(MBEDTLS_CIPHER_PADDING_PKCS7) + +/** + * \brief PKCS12 Password Based function (encryption / decryption) + * for cipher-based and mbedtls_md-based PBE's + * + * + * \warning When decrypting: + * - This function validates the CBC padding and returns + * #MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH if the padding is + * invalid. Note that this can help active adversaries + * attempting to brute-forcing the password. Note also that + * there is no guarantee that an invalid password will be + * detected (the chances of a valid padding with a random + * password are about 1/255). + * + * \param pbe_params an ASN1 buffer containing the pkcs-12 PbeParams structure + * \param mode either #MBEDTLS_PKCS12_PBE_ENCRYPT or + * #MBEDTLS_PKCS12_PBE_DECRYPT + * \param cipher_type the cipher used + * \param md_type the mbedtls_md used + * \param pwd Latin1-encoded password used. This may only be \c NULL when + * \p pwdlen is 0. No null terminator should be used. + * \param pwdlen length of the password (may be 0) + * \param data the input data + * \param len data length + * \param output Output buffer. + * On success, it contains the encrypted or decrypted data, + * possibly followed by the CBC padding. + * On failure, the content is indeterminate. + * For decryption, there must be enough room for \p len + * bytes. + * For encryption, there must be enough room for + * \p len + 1 bytes, rounded up to the block size of + * the block cipher identified by \p pbe_params. + * \param output_size size of output buffer. + * This must be big enough to accommodate for output plus + * padding data. + * \param output_len On success, length of actual data written to the output buffer. + * + * \return 0 if successful, or a MBEDTLS_ERR_XXX code + */ +int mbedtls_pkcs12_pbe_ext(mbedtls_asn1_buf *pbe_params, int mode, + mbedtls_cipher_type_t cipher_type, mbedtls_md_type_t md_type, + const unsigned char *pwd, size_t pwdlen, + const unsigned char *data, size_t len, + unsigned char *output, size_t output_size, + size_t *output_len); + +#endif /* MBEDTLS_CIPHER_PADDING_PKCS7 */ + +#endif /* MBEDTLS_ASN1_PARSE_C */ + +/** + * \brief The PKCS#12 derivation function uses a password and a salt + * to produce pseudo-random bits for a particular "purpose". + * + * Depending on the given id, this function can produce an + * encryption/decryption key, an initialization vector or an + * integrity key. + * + * \param data buffer to store the derived data in + * \param datalen length of buffer to fill + * \param pwd The password to use. For compliance with PKCS#12 §B.1, this + * should be a BMPString, i.e. a Unicode string where each + * character is encoded as 2 bytes in big-endian order, with + * no byte order mark and with a null terminator (i.e. the + * last two bytes should be 0x00 0x00). + * \param pwdlen length of the password (may be 0). + * \param salt Salt buffer to use. This may only be \c NULL when + * \p saltlen is 0. + * \param saltlen length of the salt (may be zero) + * \param mbedtls_md mbedtls_md type to use during the derivation + * \param id id that describes the purpose (can be + * #MBEDTLS_PKCS12_DERIVE_KEY, #MBEDTLS_PKCS12_DERIVE_IV or + * #MBEDTLS_PKCS12_DERIVE_MAC_KEY) + * \param iterations number of iterations + * + * \return 0 if successful, or a MD, BIGNUM type error. + */ +int mbedtls_pkcs12_derivation(unsigned char *data, size_t datalen, + const unsigned char *pwd, size_t pwdlen, + const unsigned char *salt, size_t saltlen, + mbedtls_md_type_t mbedtls_md, int id, int iterations); + +#ifdef __cplusplus +} +#endif + +#endif /* pkcs12.h */ diff --git a/include/mbedtls/pkcs5.h b/include/mbedtls/pkcs5.h new file mode 100644 index 0000000..e004f45 --- /dev/null +++ b/include/mbedtls/pkcs5.h @@ -0,0 +1,197 @@ +/** + * \file pkcs5.h + * + * \brief PKCS#5 functions + * + * \author Mathias Olsson <mathias@kompetensum.com> + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_PKCS5_H +#define MBEDTLS_PKCS5_H + +#include "mbedtls/build_info.h" +#include "mbedtls/platform_util.h" + +#include "mbedtls/asn1.h" +#include "mbedtls/md.h" + +#include <stddef.h> +#include <stdint.h> + +/** Bad input parameters to function. */ +#define MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA -0x2f80 +/** Unexpected ASN.1 data. */ +#define MBEDTLS_ERR_PKCS5_INVALID_FORMAT -0x2f00 +/** Requested encryption or digest alg not available. */ +#define MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE -0x2e80 +/** Given private key password does not allow for correct decryption. */ +#define MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH -0x2e00 + +#define MBEDTLS_PKCS5_DECRYPT 0 +#define MBEDTLS_PKCS5_ENCRYPT 1 + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(MBEDTLS_ASN1_PARSE_C) + +#if !defined(MBEDTLS_DEPRECATED_REMOVED) +/** + * \brief PKCS#5 PBES2 function + * + * \note When encrypting, #MBEDTLS_CIPHER_PADDING_PKCS7 must + * be enabled at compile time. + * + * \deprecated This function is deprecated and will be removed in a + * future version of the library. + * Please use mbedtls_pkcs5_pbes2_ext() instead. + * + * \warning When decrypting: + * - if #MBEDTLS_CIPHER_PADDING_PKCS7 is enabled at compile + * time, this function validates the CBC padding and returns + * #MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH if the padding is + * invalid. Note that this can help active adversaries + * attempting to brute-forcing the password. Note also that + * there is no guarantee that an invalid password will be + * detected (the chances of a valid padding with a random + * password are about 1/255). + * - if #MBEDTLS_CIPHER_PADDING_PKCS7 is disabled at compile + * time, this function does not validate the CBC padding. + * + * \param pbe_params the ASN.1 algorithm parameters + * \param mode either #MBEDTLS_PKCS5_DECRYPT or #MBEDTLS_PKCS5_ENCRYPT + * \param pwd password to use when generating key + * \param pwdlen length of password + * \param data data to process + * \param datalen length of data + * \param output Output buffer. + * On success, it contains the encrypted or decrypted data, + * possibly followed by the CBC padding. + * On failure, the content is indeterminate. + * For decryption, there must be enough room for \p datalen + * bytes. + * For encryption, there must be enough room for + * \p datalen + 1 bytes, rounded up to the block size of + * the block cipher identified by \p pbe_params. + * + * \returns 0 on success, or a MBEDTLS_ERR_XXX code if verification fails. + */ +int MBEDTLS_DEPRECATED mbedtls_pkcs5_pbes2(const mbedtls_asn1_buf *pbe_params, int mode, + const unsigned char *pwd, size_t pwdlen, + const unsigned char *data, size_t datalen, + unsigned char *output); +#endif /* MBEDTLS_DEPRECATED_REMOVED */ + +#if defined(MBEDTLS_CIPHER_PADDING_PKCS7) + +/** + * \brief PKCS#5 PBES2 function + * + * \warning When decrypting: + * - This function validates the CBC padding and returns + * #MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH if the padding is + * invalid. Note that this can help active adversaries + * attempting to brute-forcing the password. Note also that + * there is no guarantee that an invalid password will be + * detected (the chances of a valid padding with a random + * password are about 1/255). + * + * \param pbe_params the ASN.1 algorithm parameters + * \param mode either #MBEDTLS_PKCS5_DECRYPT or #MBEDTLS_PKCS5_ENCRYPT + * \param pwd password to use when generating key + * \param pwdlen length of password + * \param data data to process + * \param datalen length of data + * \param output Output buffer. + * On success, it contains the decrypted data. + * On failure, the content is indetermidate. + * For decryption, there must be enough room for \p datalen + * bytes. + * For encryption, there must be enough room for + * \p datalen + 1 bytes, rounded up to the block size of + * the block cipher identified by \p pbe_params. + * \param output_size size of output buffer. + * This must be big enough to accommodate for output plus + * padding data. + * \param output_len On success, length of actual data written to the output buffer. + * + * \returns 0 on success, or a MBEDTLS_ERR_XXX code if parsing or decryption fails. + */ +int mbedtls_pkcs5_pbes2_ext(const mbedtls_asn1_buf *pbe_params, int mode, + const unsigned char *pwd, size_t pwdlen, + const unsigned char *data, size_t datalen, + unsigned char *output, size_t output_size, + size_t *output_len); + +#endif /* MBEDTLS_CIPHER_PADDING_PKCS7 */ + +#endif /* MBEDTLS_ASN1_PARSE_C */ + +/** + * \brief PKCS#5 PBKDF2 using HMAC without using the HMAC context + * + * \param md_type Hash algorithm used + * \param password Password to use when generating key + * \param plen Length of password + * \param salt Salt to use when generating key + * \param slen Length of salt + * \param iteration_count Iteration count + * \param key_length Length of generated key in bytes + * \param output Generated key. Must be at least as big as key_length + * + * \returns 0 on success, or a MBEDTLS_ERR_XXX code if verification fails. + */ +int mbedtls_pkcs5_pbkdf2_hmac_ext(mbedtls_md_type_t md_type, + const unsigned char *password, + size_t plen, const unsigned char *salt, size_t slen, + unsigned int iteration_count, + uint32_t key_length, unsigned char *output); + +#if defined(MBEDTLS_MD_C) +#if !defined(MBEDTLS_DEPRECATED_REMOVED) +/** + * \brief PKCS#5 PBKDF2 using HMAC + * + * \deprecated Superseded by mbedtls_pkcs5_pbkdf2_hmac_ext(). + * + * \param ctx Generic HMAC context + * \param password Password to use when generating key + * \param plen Length of password + * \param salt Salt to use when generating key + * \param slen Length of salt + * \param iteration_count Iteration count + * \param key_length Length of generated key in bytes + * \param output Generated key. Must be at least as big as key_length + * + * \returns 0 on success, or a MBEDTLS_ERR_XXX code if verification fails. + */ +int MBEDTLS_DEPRECATED mbedtls_pkcs5_pbkdf2_hmac(mbedtls_md_context_t *ctx, + const unsigned char *password, + size_t plen, + const unsigned char *salt, + size_t slen, + unsigned int iteration_count, + uint32_t key_length, + unsigned char *output); +#endif /* !MBEDTLS_DEPRECATED_REMOVED */ +#endif /* MBEDTLS_MD_C */ +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_pkcs5_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* pkcs5.h */ diff --git a/include/mbedtls/pkcs7.h b/include/mbedtls/pkcs7.h new file mode 100644 index 0000000..70b25a9 --- /dev/null +++ b/include/mbedtls/pkcs7.h @@ -0,0 +1,241 @@ +/** + * \file pkcs7.h + * + * \brief PKCS #7 generic defines and structures + * https://tools.ietf.org/html/rfc2315 + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +/** + * Note: For the time being, this implementation of the PKCS #7 cryptographic + * message syntax is a partial implementation of RFC 2315. + * Differences include: + * - The RFC specifies 6 different content types. The only type currently + * supported in Mbed TLS is the signed-data content type. + * - The only supported PKCS #7 Signed Data syntax version is version 1 + * - The RFC specifies support for BER. This implementation is limited to + * DER only. + * - The RFC specifies that multiple digest algorithms can be specified + * in the Signed Data type. Only one digest algorithm is supported in Mbed TLS. + * - The RFC specifies the Signed Data type can contain multiple X.509 or PKCS #6 extended + * certificates. In Mbed TLS, this list can only contain 0 or 1 certificates + * and they must be in X.509 format. + * - The RFC specifies the Signed Data type can contain + * certificate-revocation lists (CRLs). This implementation has no support + * for CRLs so it is assumed to be an empty list. + * - The RFC allows for SignerInfo structure to optionally contain + * unauthenticatedAttributes and authenticatedAttributes. In Mbed TLS it is + * assumed these fields are empty. + * - The RFC allows for the signed Data type to contain contentInfo. This + * implementation assumes the type is DATA and the content is empty. + */ + +#ifndef MBEDTLS_PKCS7_H +#define MBEDTLS_PKCS7_H + +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/asn1.h" +#include "mbedtls/x509.h" +#include "mbedtls/x509_crt.h" + +/** + * \name PKCS #7 Module Error codes + * \{ + */ +#define MBEDTLS_ERR_PKCS7_INVALID_FORMAT -0x5300 /**< The format is invalid, e.g. different type expected. */ +#define MBEDTLS_ERR_PKCS7_FEATURE_UNAVAILABLE -0x5380 /**< Unavailable feature, e.g. anything other than signed data. */ +#define MBEDTLS_ERR_PKCS7_INVALID_VERSION -0x5400 /**< The PKCS #7 version element is invalid or cannot be parsed. */ +#define MBEDTLS_ERR_PKCS7_INVALID_CONTENT_INFO -0x5480 /**< The PKCS #7 content info is invalid or cannot be parsed. */ +#define MBEDTLS_ERR_PKCS7_INVALID_ALG -0x5500 /**< The algorithm tag or value is invalid or cannot be parsed. */ +#define MBEDTLS_ERR_PKCS7_INVALID_CERT -0x5580 /**< The certificate tag or value is invalid or cannot be parsed. */ +#define MBEDTLS_ERR_PKCS7_INVALID_SIGNATURE -0x5600 /**< Error parsing the signature */ +#define MBEDTLS_ERR_PKCS7_INVALID_SIGNER_INFO -0x5680 /**< Error parsing the signer's info */ +#define MBEDTLS_ERR_PKCS7_BAD_INPUT_DATA -0x5700 /**< Input invalid. */ +#define MBEDTLS_ERR_PKCS7_ALLOC_FAILED -0x5780 /**< Allocation of memory failed. */ +#define MBEDTLS_ERR_PKCS7_VERIFY_FAIL -0x5800 /**< Verification Failed */ +#define MBEDTLS_ERR_PKCS7_CERT_DATE_INVALID -0x5880 /**< The PKCS #7 date issued/expired dates are invalid */ +/* \} name */ + +/** + * \name PKCS #7 Supported Version + * \{ + */ +#define MBEDTLS_PKCS7_SUPPORTED_VERSION 0x01 +/* \} name */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Type-length-value structure that allows for ASN.1 using DER. + */ +typedef mbedtls_asn1_buf mbedtls_pkcs7_buf; + +/** + * Container for ASN.1 named information objects. + * It allows for Relative Distinguished Names (e.g. cn=localhost,ou=code,etc.). + */ +typedef mbedtls_asn1_named_data mbedtls_pkcs7_name; + +/** + * Container for a sequence of ASN.1 items + */ +typedef mbedtls_asn1_sequence mbedtls_pkcs7_sequence; + +/** + * PKCS #7 types + */ +typedef enum { + MBEDTLS_PKCS7_NONE=0, + MBEDTLS_PKCS7_DATA, + MBEDTLS_PKCS7_SIGNED_DATA, + MBEDTLS_PKCS7_ENVELOPED_DATA, + MBEDTLS_PKCS7_SIGNED_AND_ENVELOPED_DATA, + MBEDTLS_PKCS7_DIGESTED_DATA, + MBEDTLS_PKCS7_ENCRYPTED_DATA, +} +mbedtls_pkcs7_type; + +/** + * Structure holding PKCS #7 signer info + */ +typedef struct mbedtls_pkcs7_signer_info { + int MBEDTLS_PRIVATE(version); + mbedtls_x509_buf MBEDTLS_PRIVATE(serial); + mbedtls_x509_name MBEDTLS_PRIVATE(issuer); + mbedtls_x509_buf MBEDTLS_PRIVATE(issuer_raw); + mbedtls_x509_buf MBEDTLS_PRIVATE(alg_identifier); + mbedtls_x509_buf MBEDTLS_PRIVATE(sig_alg_identifier); + mbedtls_x509_buf MBEDTLS_PRIVATE(sig); + struct mbedtls_pkcs7_signer_info *MBEDTLS_PRIVATE(next); +} +mbedtls_pkcs7_signer_info; + +/** + * Structure holding the signed data section + */ +typedef struct mbedtls_pkcs7_signed_data { + int MBEDTLS_PRIVATE(version); + mbedtls_pkcs7_buf MBEDTLS_PRIVATE(digest_alg_identifiers); + int MBEDTLS_PRIVATE(no_of_certs); + mbedtls_x509_crt MBEDTLS_PRIVATE(certs); + int MBEDTLS_PRIVATE(no_of_crls); + mbedtls_x509_crl MBEDTLS_PRIVATE(crl); + int MBEDTLS_PRIVATE(no_of_signers); + mbedtls_pkcs7_signer_info MBEDTLS_PRIVATE(signers); +} +mbedtls_pkcs7_signed_data; + +/** + * Structure holding PKCS #7 structure, only signed data for now + */ +typedef struct mbedtls_pkcs7 { + mbedtls_pkcs7_buf MBEDTLS_PRIVATE(raw); + mbedtls_pkcs7_signed_data MBEDTLS_PRIVATE(signed_data); +} +mbedtls_pkcs7; + +/** + * \brief Initialize mbedtls_pkcs7 structure. + * + * \param pkcs7 mbedtls_pkcs7 structure. + */ +void mbedtls_pkcs7_init(mbedtls_pkcs7 *pkcs7); + +/** + * \brief Parse a single DER formatted PKCS #7 detached signature. + * + * \param pkcs7 The mbedtls_pkcs7 structure to be filled by the parser. + * \param buf The buffer holding only the DER encoded PKCS #7 content. + * \param buflen The size in bytes of \p buf. The size must be exactly the + * length of the DER encoded PKCS #7 content. + * + * \note This function makes an internal copy of the PKCS #7 buffer + * \p buf. In particular, \p buf may be destroyed or reused + * after this call returns. + * \note Signatures with internal data are not supported. + * + * \return The \c mbedtls_pkcs7_type of \p buf, if successful. + * \return A negative error code on failure. + */ +int mbedtls_pkcs7_parse_der(mbedtls_pkcs7 *pkcs7, const unsigned char *buf, + const size_t buflen); + +/** + * \brief Verification of PKCS #7 signature against a caller-supplied + * certificate. + * + * For each signer in the PKCS structure, this function computes + * a signature over the supplied data, using the supplied + * certificate and the same digest algorithm as specified by the + * signer. It then compares this signature against the + * signer's signature; verification succeeds if any comparison + * matches. + * + * This function does not use the certificates held within the + * PKCS #7 structure itself, and does not check that the + * certificate is signed by a trusted certification authority. + * + * \param pkcs7 mbedtls_pkcs7 structure containing signature. + * \param cert Certificate containing key to verify signature. + * \param data Plain data on which signature has to be verified. + * \param datalen Length of the data. + * + * \note This function internally calculates the hash on the supplied + * plain data for signature verification. + * + * \return 0 if the signature verifies, or a negative error code on failure. + */ +int mbedtls_pkcs7_signed_data_verify(mbedtls_pkcs7 *pkcs7, + const mbedtls_x509_crt *cert, + const unsigned char *data, + size_t datalen); + +/** + * \brief Verification of PKCS #7 signature against a caller-supplied + * certificate. + * + * For each signer in the PKCS structure, this function + * validates a signature over the supplied hash, using the + * supplied certificate and the same digest algorithm as + * specified by the signer. Verification succeeds if any + * signature is good. + * + * This function does not use the certificates held within the + * PKCS #7 structure itself, and does not check that the + * certificate is signed by a trusted certification authority. + * + * \param pkcs7 PKCS #7 structure containing signature. + * \param cert Certificate containing key to verify signature. + * \param hash Hash of the plain data on which signature has to be verified. + * \param hashlen Length of the hash. + * + * \note This function is different from mbedtls_pkcs7_signed_data_verify() + * in that it is directly passed the hash of the data. + * + * \return 0 if the signature verifies, or a negative error code on failure. + */ +int mbedtls_pkcs7_signed_hash_verify(mbedtls_pkcs7 *pkcs7, + const mbedtls_x509_crt *cert, + const unsigned char *hash, size_t hashlen); + +/** + * \brief Unallocate all PKCS #7 data and zeroize the memory. + * It doesn't free \p pkcs7 itself. This should be done by the caller. + * + * \param pkcs7 mbedtls_pkcs7 structure to free. + */ +void mbedtls_pkcs7_free(mbedtls_pkcs7 *pkcs7); + +#ifdef __cplusplus +} +#endif + +#endif /* pkcs7.h */ diff --git a/include/mbedtls/platform.h b/include/mbedtls/platform.h new file mode 100644 index 0000000..de3d71d --- /dev/null +++ b/include/mbedtls/platform.h @@ -0,0 +1,485 @@ +/** + * \file platform.h + * + * \brief This file contains the definitions and functions of the + * Mbed TLS platform abstraction layer. + * + * The platform abstraction layer removes the need for the library + * to directly link to standard C library functions or operating + * system services, making the library easier to port and embed. + * Application developers and users of the library can provide their own + * implementations of these functions, or implementations specific to + * their platform, which can be statically linked to the library or + * dynamically configured at runtime. + * + * When all compilation options related to platform abstraction are + * disabled, this header just defines `mbedtls_xxx` function names + * as aliases to the standard `xxx` function. + * + * Most modules in the library and example programs are expected to + * include this header. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_PLATFORM_H +#define MBEDTLS_PLATFORM_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#if defined(MBEDTLS_HAVE_TIME) +#include "mbedtls/platform_time.h" +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in mbedtls_config.h or define them on the compiler command line. + * \{ + */ + +/* The older Microsoft Windows common runtime provides non-conforming + * implementations of some standard library functions, including snprintf + * and vsnprintf. This affects MSVC and MinGW builds. + */ +#if defined(__MINGW32__) || (defined(_MSC_VER) && _MSC_VER <= 1900) +#define MBEDTLS_PLATFORM_HAS_NON_CONFORMING_SNPRINTF +#define MBEDTLS_PLATFORM_HAS_NON_CONFORMING_VSNPRINTF +#endif + +#if !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS) +#include <stdio.h> +#include <stdlib.h> +#if defined(MBEDTLS_HAVE_TIME) +#include <time.h> +#endif +#if !defined(MBEDTLS_PLATFORM_STD_SNPRINTF) +#if defined(MBEDTLS_PLATFORM_HAS_NON_CONFORMING_SNPRINTF) +#define MBEDTLS_PLATFORM_STD_SNPRINTF mbedtls_platform_win32_snprintf /**< The default \c snprintf function to use. */ +#else +#define MBEDTLS_PLATFORM_STD_SNPRINTF snprintf /**< The default \c snprintf function to use. */ +#endif +#endif +#if !defined(MBEDTLS_PLATFORM_STD_VSNPRINTF) +#if defined(MBEDTLS_PLATFORM_HAS_NON_CONFORMING_VSNPRINTF) +#define MBEDTLS_PLATFORM_STD_VSNPRINTF mbedtls_platform_win32_vsnprintf /**< The default \c vsnprintf function to use. */ +#else +#define MBEDTLS_PLATFORM_STD_VSNPRINTF vsnprintf /**< The default \c vsnprintf function to use. */ +#endif +#endif +#if !defined(MBEDTLS_PLATFORM_STD_PRINTF) +#define MBEDTLS_PLATFORM_STD_PRINTF printf /**< The default \c printf function to use. */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_FPRINTF) +#define MBEDTLS_PLATFORM_STD_FPRINTF fprintf /**< The default \c fprintf function to use. */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_CALLOC) +#define MBEDTLS_PLATFORM_STD_CALLOC calloc /**< The default \c calloc function to use. */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_FREE) +#define MBEDTLS_PLATFORM_STD_FREE free /**< The default \c free function to use. */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_SETBUF) +#define MBEDTLS_PLATFORM_STD_SETBUF setbuf /**< The default \c setbuf function to use. */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_EXIT) +#define MBEDTLS_PLATFORM_STD_EXIT exit /**< The default \c exit function to use. */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_TIME) +#define MBEDTLS_PLATFORM_STD_TIME time /**< The default \c time function to use. */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_EXIT_SUCCESS) +#define MBEDTLS_PLATFORM_STD_EXIT_SUCCESS EXIT_SUCCESS /**< The default exit value to use. */ +#endif +#if !defined(MBEDTLS_PLATFORM_STD_EXIT_FAILURE) +#define MBEDTLS_PLATFORM_STD_EXIT_FAILURE EXIT_FAILURE /**< The default exit value to use. */ +#endif +#if defined(MBEDTLS_FS_IO) +#if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ) +#define MBEDTLS_PLATFORM_STD_NV_SEED_READ mbedtls_platform_std_nv_seed_read +#endif +#if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE) +#define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE mbedtls_platform_std_nv_seed_write +#endif +#if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_FILE) +#define MBEDTLS_PLATFORM_STD_NV_SEED_FILE "seedfile" +#endif +#endif /* MBEDTLS_FS_IO */ +#else /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */ +#if defined(MBEDTLS_PLATFORM_STD_MEM_HDR) +#include MBEDTLS_PLATFORM_STD_MEM_HDR +#endif +#endif /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */ + +/* Enable certain documented defines only when generating doxygen to avoid + * an "unrecognized define" error. */ +#if defined(__DOXYGEN__) && !defined(MBEDTLS_PLATFORM_STD_CALLOC) +#define MBEDTLS_PLATFORM_STD_CALLOC +#endif + +#if defined(__DOXYGEN__) && !defined(MBEDTLS_PLATFORM_STD_FREE) +#define MBEDTLS_PLATFORM_STD_FREE +#endif + +/** \} name SECTION: Module settings */ + +/* + * The function pointers for calloc and free. + * Please see MBEDTLS_PLATFORM_STD_CALLOC and MBEDTLS_PLATFORM_STD_FREE + * in mbedtls_config.h for more information about behaviour and requirements. + */ +#if defined(MBEDTLS_PLATFORM_MEMORY) +#if defined(MBEDTLS_PLATFORM_FREE_MACRO) && \ + defined(MBEDTLS_PLATFORM_CALLOC_MACRO) +#undef mbedtls_free +#undef mbedtls_calloc +#define mbedtls_free MBEDTLS_PLATFORM_FREE_MACRO +#define mbedtls_calloc MBEDTLS_PLATFORM_CALLOC_MACRO +#else +/* For size_t */ +#include <stddef.h> +extern void *mbedtls_calloc(size_t n, size_t size); +extern void mbedtls_free(void *ptr); + +/** + * \brief This function dynamically sets the memory-management + * functions used by the library, during runtime. + * + * \param calloc_func The \c calloc function implementation. + * \param free_func The \c free function implementation. + * + * \return \c 0. + */ +int mbedtls_platform_set_calloc_free(void *(*calloc_func)(size_t, size_t), + void (*free_func)(void *)); +#endif /* MBEDTLS_PLATFORM_FREE_MACRO && MBEDTLS_PLATFORM_CALLOC_MACRO */ +#else /* !MBEDTLS_PLATFORM_MEMORY */ +#undef mbedtls_free +#undef mbedtls_calloc +#define mbedtls_free free +#define mbedtls_calloc calloc +#endif /* MBEDTLS_PLATFORM_MEMORY && !MBEDTLS_PLATFORM_{FREE,CALLOC}_MACRO */ + +/* + * The function pointers for fprintf + */ +#if defined(MBEDTLS_PLATFORM_FPRINTF_ALT) +/* We need FILE * */ +#include <stdio.h> +extern int (*mbedtls_fprintf)(FILE *stream, const char *format, ...); + +/** + * \brief This function dynamically configures the fprintf + * function that is called when the + * mbedtls_fprintf() function is invoked by the library. + * + * \param fprintf_func The \c fprintf function implementation. + * + * \return \c 0. + */ +int mbedtls_platform_set_fprintf(int (*fprintf_func)(FILE *stream, const char *, + ...)); +#else +#undef mbedtls_fprintf +#if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO) +#define mbedtls_fprintf MBEDTLS_PLATFORM_FPRINTF_MACRO +#else +#define mbedtls_fprintf fprintf +#endif /* MBEDTLS_PLATFORM_FPRINTF_MACRO */ +#endif /* MBEDTLS_PLATFORM_FPRINTF_ALT */ + +/* + * The function pointers for printf + */ +#if defined(MBEDTLS_PLATFORM_PRINTF_ALT) +extern int (*mbedtls_printf)(const char *format, ...); + +/** + * \brief This function dynamically configures the snprintf + * function that is called when the mbedtls_snprintf() + * function is invoked by the library. + * + * \param printf_func The \c printf function implementation. + * + * \return \c 0 on success. + */ +int mbedtls_platform_set_printf(int (*printf_func)(const char *, ...)); +#else /* !MBEDTLS_PLATFORM_PRINTF_ALT */ +#undef mbedtls_printf +#if defined(MBEDTLS_PLATFORM_PRINTF_MACRO) +#define mbedtls_printf MBEDTLS_PLATFORM_PRINTF_MACRO +#else +#define mbedtls_printf printf +#endif /* MBEDTLS_PLATFORM_PRINTF_MACRO */ +#endif /* MBEDTLS_PLATFORM_PRINTF_ALT */ + +/* + * The function pointers for snprintf + * + * The snprintf implementation should conform to C99: + * - it *must* always correctly zero-terminate the buffer + * (except when n == 0, then it must leave the buffer untouched) + * - however it is acceptable to return -1 instead of the required length when + * the destination buffer is too short. + */ +#if defined(MBEDTLS_PLATFORM_HAS_NON_CONFORMING_SNPRINTF) +/* For Windows (inc. MSYS2), we provide our own fixed implementation */ +int mbedtls_platform_win32_snprintf(char *s, size_t n, const char *fmt, ...); +#endif + +#if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) +extern int (*mbedtls_snprintf)(char *s, size_t n, const char *format, ...); + +/** + * \brief This function allows configuring a custom + * \c snprintf function pointer. + * + * \param snprintf_func The \c snprintf function implementation. + * + * \return \c 0 on success. + */ +int mbedtls_platform_set_snprintf(int (*snprintf_func)(char *s, size_t n, + const char *format, ...)); +#else /* MBEDTLS_PLATFORM_SNPRINTF_ALT */ +#undef mbedtls_snprintf +#if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) +#define mbedtls_snprintf MBEDTLS_PLATFORM_SNPRINTF_MACRO +#else +#define mbedtls_snprintf MBEDTLS_PLATFORM_STD_SNPRINTF +#endif /* MBEDTLS_PLATFORM_SNPRINTF_MACRO */ +#endif /* MBEDTLS_PLATFORM_SNPRINTF_ALT */ + +/* + * The function pointers for vsnprintf + * + * The vsnprintf implementation should conform to C99: + * - it *must* always correctly zero-terminate the buffer + * (except when n == 0, then it must leave the buffer untouched) + * - however it is acceptable to return -1 instead of the required length when + * the destination buffer is too short. + */ +#if defined(MBEDTLS_PLATFORM_HAS_NON_CONFORMING_VSNPRINTF) +#include <stdarg.h> +/* For Older Windows (inc. MSYS2), we provide our own fixed implementation */ +int mbedtls_platform_win32_vsnprintf(char *s, size_t n, const char *fmt, va_list arg); +#endif + +#if defined(MBEDTLS_PLATFORM_VSNPRINTF_ALT) +#include <stdarg.h> +extern int (*mbedtls_vsnprintf)(char *s, size_t n, const char *format, va_list arg); + +/** + * \brief Set your own snprintf function pointer + * + * \param vsnprintf_func The \c vsnprintf function implementation + * + * \return \c 0 + */ +int mbedtls_platform_set_vsnprintf(int (*vsnprintf_func)(char *s, size_t n, + const char *format, va_list arg)); +#else /* MBEDTLS_PLATFORM_VSNPRINTF_ALT */ +#undef mbedtls_vsnprintf +#if defined(MBEDTLS_PLATFORM_VSNPRINTF_MACRO) +#define mbedtls_vsnprintf MBEDTLS_PLATFORM_VSNPRINTF_MACRO +#else +#define mbedtls_vsnprintf vsnprintf +#endif /* MBEDTLS_PLATFORM_VSNPRINTF_MACRO */ +#endif /* MBEDTLS_PLATFORM_VSNPRINTF_ALT */ + +/* + * The function pointers for setbuf + */ +#if defined(MBEDTLS_PLATFORM_SETBUF_ALT) +#include <stdio.h> +/** + * \brief Function pointer to call for `setbuf()` functionality + * (changing the internal buffering on stdio calls). + * + * \note The library calls this function to disable + * buffering when reading or writing sensitive data, + * to avoid having extra copies of sensitive data + * remaining in stdio buffers after the file is + * closed. If this is not a concern, for example if + * your platform's stdio doesn't have any buffering, + * you can set mbedtls_setbuf to a function that + * does nothing. + * + * The library always calls this function with + * `buf` equal to `NULL`. + */ +extern void (*mbedtls_setbuf)(FILE *stream, char *buf); + +/** + * \brief Dynamically configure the function that is called + * when the mbedtls_setbuf() function is called by the + * library. + * + * \param setbuf_func The \c setbuf function implementation + * + * \return \c 0 + */ +int mbedtls_platform_set_setbuf(void (*setbuf_func)( + FILE *stream, char *buf)); +#else +#undef mbedtls_setbuf +#if defined(MBEDTLS_PLATFORM_SETBUF_MACRO) +/** + * \brief Macro defining the function for the library to + * call for `setbuf` functionality (changing the + * internal buffering on stdio calls). + * + * \note See extra comments on the mbedtls_setbuf() function + * pointer above. + * + * \return \c 0 on success, negative on error. + */ +#define mbedtls_setbuf MBEDTLS_PLATFORM_SETBUF_MACRO +#else +#define mbedtls_setbuf setbuf +#endif /* MBEDTLS_PLATFORM_SETBUF_MACRO */ +#endif /* MBEDTLS_PLATFORM_SETBUF_ALT */ + +/* + * The function pointers for exit + */ +#if defined(MBEDTLS_PLATFORM_EXIT_ALT) +extern void (*mbedtls_exit)(int status); + +/** + * \brief This function dynamically configures the exit + * function that is called when the mbedtls_exit() + * function is invoked by the library. + * + * \param exit_func The \c exit function implementation. + * + * \return \c 0 on success. + */ +int mbedtls_platform_set_exit(void (*exit_func)(int status)); +#else +#undef mbedtls_exit +#if defined(MBEDTLS_PLATFORM_EXIT_MACRO) +#define mbedtls_exit MBEDTLS_PLATFORM_EXIT_MACRO +#else +#define mbedtls_exit exit +#endif /* MBEDTLS_PLATFORM_EXIT_MACRO */ +#endif /* MBEDTLS_PLATFORM_EXIT_ALT */ + +/* + * The default exit values + */ +#if defined(MBEDTLS_PLATFORM_STD_EXIT_SUCCESS) +#define MBEDTLS_EXIT_SUCCESS MBEDTLS_PLATFORM_STD_EXIT_SUCCESS +#else +#define MBEDTLS_EXIT_SUCCESS 0 +#endif +#if defined(MBEDTLS_PLATFORM_STD_EXIT_FAILURE) +#define MBEDTLS_EXIT_FAILURE MBEDTLS_PLATFORM_STD_EXIT_FAILURE +#else +#define MBEDTLS_EXIT_FAILURE 1 +#endif + +/* + * The function pointers for reading from and writing a seed file to + * Non-Volatile storage (NV) in a platform-independent way + * + * Only enabled when the NV seed entropy source is enabled + */ +#if defined(MBEDTLS_ENTROPY_NV_SEED) +#if !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS) && defined(MBEDTLS_FS_IO) +/* Internal standard platform definitions */ +int mbedtls_platform_std_nv_seed_read(unsigned char *buf, size_t buf_len); +int mbedtls_platform_std_nv_seed_write(unsigned char *buf, size_t buf_len); +#endif + +#if defined(MBEDTLS_PLATFORM_NV_SEED_ALT) +extern int (*mbedtls_nv_seed_read)(unsigned char *buf, size_t buf_len); +extern int (*mbedtls_nv_seed_write)(unsigned char *buf, size_t buf_len); + +/** + * \brief This function allows configuring custom seed file writing and + * reading functions. + * + * \param nv_seed_read_func The seed reading function implementation. + * \param nv_seed_write_func The seed writing function implementation. + * + * \return \c 0 on success. + */ +int mbedtls_platform_set_nv_seed( + int (*nv_seed_read_func)(unsigned char *buf, size_t buf_len), + int (*nv_seed_write_func)(unsigned char *buf, size_t buf_len) + ); +#else +#undef mbedtls_nv_seed_read +#undef mbedtls_nv_seed_write +#if defined(MBEDTLS_PLATFORM_NV_SEED_READ_MACRO) && \ + defined(MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO) +#define mbedtls_nv_seed_read MBEDTLS_PLATFORM_NV_SEED_READ_MACRO +#define mbedtls_nv_seed_write MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO +#else +#define mbedtls_nv_seed_read mbedtls_platform_std_nv_seed_read +#define mbedtls_nv_seed_write mbedtls_platform_std_nv_seed_write +#endif +#endif /* MBEDTLS_PLATFORM_NV_SEED_ALT */ +#endif /* MBEDTLS_ENTROPY_NV_SEED */ + +#if !defined(MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT) + +/** + * \brief The platform context structure. + * + * \note This structure may be used to assist platform-specific + * setup or teardown operations. + */ +typedef struct mbedtls_platform_context { + char MBEDTLS_PRIVATE(dummy); /**< A placeholder member, as empty structs are not portable. */ +} +mbedtls_platform_context; + +#else +#include "platform_alt.h" +#endif /* !MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT */ + +/** + * \brief This function performs any platform-specific initialization + * operations. + * + * \note This function should be called before any other library functions. + * + * Its implementation is platform-specific, and unless + * platform-specific code is provided, it does nothing. + * + * \note The usage and necessity of this function is dependent on the platform. + * + * \param ctx The platform context. + * + * \return \c 0 on success. + */ +int mbedtls_platform_setup(mbedtls_platform_context *ctx); +/** + * \brief This function performs any platform teardown operations. + * + * \note This function should be called after every other Mbed TLS module + * has been correctly freed using the appropriate free function. + * + * Its implementation is platform-specific, and unless + * platform-specific code is provided, it does nothing. + * + * \note The usage and necessity of this function is dependent on the platform. + * + * \param ctx The platform context. + * + */ +void mbedtls_platform_teardown(mbedtls_platform_context *ctx); + +#ifdef __cplusplus +} +#endif + +#endif /* platform.h */ diff --git a/include/mbedtls/platform_time.h b/include/mbedtls/platform_time.h new file mode 100644 index 0000000..97f1963 --- /dev/null +++ b/include/mbedtls/platform_time.h @@ -0,0 +1,79 @@ +/** + * \file platform_time.h + * + * \brief Mbed TLS Platform time abstraction + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_PLATFORM_TIME_H +#define MBEDTLS_PLATFORM_TIME_H + +#include "mbedtls/build_info.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * The time_t datatype + */ +#if defined(MBEDTLS_PLATFORM_TIME_TYPE_MACRO) +typedef MBEDTLS_PLATFORM_TIME_TYPE_MACRO mbedtls_time_t; +#else +/* For time_t */ +#include <time.h> +typedef time_t mbedtls_time_t; +#endif /* MBEDTLS_PLATFORM_TIME_TYPE_MACRO */ + +#if defined(MBEDTLS_PLATFORM_MS_TIME_TYPE_MACRO) +typedef MBEDTLS_PLATFORM_MS_TIME_TYPE_MACRO mbedtls_ms_time_t; +#else +#include <stdint.h> +#include <inttypes.h> +typedef int64_t mbedtls_ms_time_t; +#endif /* MBEDTLS_PLATFORM_MS_TIME_TYPE_MACRO */ + +/** + * \brief Get time in milliseconds. + * + * \return Monotonically-increasing current time in milliseconds. + * + * \note Define MBEDTLS_PLATFORM_MS_TIME_ALT to be able to provide an + * alternative implementation + * + * \warning This function returns a monotonically-increasing time value from a + * start time that will differ from platform to platform, and possibly + * from run to run of the process. + * + */ +mbedtls_ms_time_t mbedtls_ms_time(void); + +/* + * The function pointers for time + */ +#if defined(MBEDTLS_PLATFORM_TIME_ALT) +extern mbedtls_time_t (*mbedtls_time)(mbedtls_time_t *time); + +/** + * \brief Set your own time function pointer + * + * \param time_func the time function implementation + * + * \return 0 + */ +int mbedtls_platform_set_time(mbedtls_time_t (*time_func)(mbedtls_time_t *time)); +#else +#if defined(MBEDTLS_PLATFORM_TIME_MACRO) +#define mbedtls_time MBEDTLS_PLATFORM_TIME_MACRO +#else +#define mbedtls_time time +#endif /* MBEDTLS_PLATFORM_TIME_MACRO */ +#endif /* MBEDTLS_PLATFORM_TIME_ALT */ + +#ifdef __cplusplus +} +#endif + +#endif /* platform_time.h */ diff --git a/include/mbedtls/platform_util.h b/include/mbedtls/platform_util.h new file mode 100644 index 0000000..cba02ab --- /dev/null +++ b/include/mbedtls/platform_util.h @@ -0,0 +1,201 @@ +/** + * \file platform_util.h + * + * \brief Common and shared functions used by multiple modules in the Mbed TLS + * library. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_PLATFORM_UTIL_H +#define MBEDTLS_PLATFORM_UTIL_H + +#include "mbedtls/build_info.h" + +#include <stddef.h> +#if defined(MBEDTLS_HAVE_TIME_DATE) +#include "mbedtls/platform_time.h" +#include <time.h> +#endif /* MBEDTLS_HAVE_TIME_DATE */ + +#ifdef __cplusplus +extern "C" { +#endif + +/* Internal macros meant to be called only from within the library. */ +#define MBEDTLS_INTERNAL_VALIDATE_RET(cond, ret) do { } while (0) +#define MBEDTLS_INTERNAL_VALIDATE(cond) do { } while (0) + +/* Internal helper macros for deprecating API constants. */ +#if !defined(MBEDTLS_DEPRECATED_REMOVED) +#if defined(MBEDTLS_DEPRECATED_WARNING) +#define MBEDTLS_DEPRECATED __attribute__((deprecated)) +MBEDTLS_DEPRECATED typedef char const *mbedtls_deprecated_string_constant_t; +#define MBEDTLS_DEPRECATED_STRING_CONSTANT(VAL) \ + ((mbedtls_deprecated_string_constant_t) (VAL)) +MBEDTLS_DEPRECATED typedef int mbedtls_deprecated_numeric_constant_t; +#define MBEDTLS_DEPRECATED_NUMERIC_CONSTANT(VAL) \ + ((mbedtls_deprecated_numeric_constant_t) (VAL)) +#else /* MBEDTLS_DEPRECATED_WARNING */ +#define MBEDTLS_DEPRECATED +#define MBEDTLS_DEPRECATED_STRING_CONSTANT(VAL) VAL +#define MBEDTLS_DEPRECATED_NUMERIC_CONSTANT(VAL) VAL +#endif /* MBEDTLS_DEPRECATED_WARNING */ +#endif /* MBEDTLS_DEPRECATED_REMOVED */ + +/* Implementation of the check-return facility. + * See the user documentation in mbedtls_config.h. + * + * Do not use this macro directly to annotate function: instead, + * use one of MBEDTLS_CHECK_RETURN_CRITICAL or MBEDTLS_CHECK_RETURN_TYPICAL + * depending on how important it is to check the return value. + */ +#if !defined(MBEDTLS_CHECK_RETURN) +#if defined(__GNUC__) +#define MBEDTLS_CHECK_RETURN __attribute__((__warn_unused_result__)) +#elif defined(_MSC_VER) && _MSC_VER >= 1700 +#include <sal.h> +#define MBEDTLS_CHECK_RETURN _Check_return_ +#else +#define MBEDTLS_CHECK_RETURN +#endif +#endif + +/** Critical-failure function + * + * This macro appearing at the beginning of the declaration of a function + * indicates that its return value should be checked in all applications. + * Omitting the check is very likely to indicate a bug in the application + * and will result in a compile-time warning if #MBEDTLS_CHECK_RETURN + * is implemented for the compiler in use. + * + * \note The use of this macro is a work in progress. + * This macro may be added to more functions in the future. + * Such an extension is not considered an API break, provided that + * there are near-unavoidable circumstances under which the function + * can fail. For example, signature/MAC/AEAD verification functions, + * and functions that require a random generator, are considered + * return-check-critical. + */ +#define MBEDTLS_CHECK_RETURN_CRITICAL MBEDTLS_CHECK_RETURN + +/** Ordinary-failure function + * + * This macro appearing at the beginning of the declaration of a function + * indicates that its return value should be generally be checked in portable + * applications. Omitting the check will result in a compile-time warning if + * #MBEDTLS_CHECK_RETURN is implemented for the compiler in use and + * #MBEDTLS_CHECK_RETURN_WARNING is enabled in the compile-time configuration. + * + * You can use #MBEDTLS_IGNORE_RETURN to explicitly ignore the return value + * of a function that is annotated with #MBEDTLS_CHECK_RETURN. + * + * \note The use of this macro is a work in progress. + * This macro will be added to more functions in the future. + * Eventually this should appear before most functions returning + * an error code (as \c int in the \c mbedtls_xxx API or + * as ::psa_status_t in the \c psa_xxx API). + */ +#if defined(MBEDTLS_CHECK_RETURN_WARNING) +#define MBEDTLS_CHECK_RETURN_TYPICAL MBEDTLS_CHECK_RETURN +#else +#define MBEDTLS_CHECK_RETURN_TYPICAL +#endif + +/** Benign-failure function + * + * This macro appearing at the beginning of the declaration of a function + * indicates that it is rarely useful to check its return value. + * + * This macro has an empty expansion. It exists for documentation purposes: + * a #MBEDTLS_CHECK_RETURN_OPTIONAL annotation indicates that the function + * has been analyzed for return-check usefulness, whereas the lack of + * an annotation indicates that the function has not been analyzed and its + * return-check usefulness is unknown. + */ +#define MBEDTLS_CHECK_RETURN_OPTIONAL + +/** \def MBEDTLS_IGNORE_RETURN + * + * Call this macro with one argument, a function call, to suppress a warning + * from #MBEDTLS_CHECK_RETURN due to that function call. + */ +#if !defined(MBEDTLS_IGNORE_RETURN) +/* GCC doesn't silence the warning with just (void)(result). + * (void)!(result) is known to work up at least up to GCC 10, as well + * as with Clang and MSVC. + * + * https://gcc.gnu.org/onlinedocs/gcc-3.4.6/gcc/Non_002dbugs.html + * https://stackoverflow.com/questions/40576003/ignoring-warning-wunused-result + * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66425#c34 + */ +#define MBEDTLS_IGNORE_RETURN(result) ((void) !(result)) +#endif + +/* If the following macro is defined, the library is being built by the test + * framework, and the framework is going to provide a replacement + * mbedtls_platform_zeroize() using a preprocessor macro, so the function + * declaration should be omitted. */ +#if !defined(MBEDTLS_TEST_DEFINES_ZEROIZE) //no-check-names +/** + * \brief Securely zeroize a buffer + * + * The function is meant to wipe the data contained in a buffer so + * that it can no longer be recovered even if the program memory + * is later compromised. Call this function on sensitive data + * stored on the stack before returning from a function, and on + * sensitive data stored on the heap before freeing the heap + * object. + * + * It is extremely difficult to guarantee that calls to + * mbedtls_platform_zeroize() are not removed by aggressive + * compiler optimizations in a portable way. For this reason, Mbed + * TLS provides the configuration option + * MBEDTLS_PLATFORM_ZEROIZE_ALT, which allows users to configure + * mbedtls_platform_zeroize() to use a suitable implementation for + * their platform and needs + * + * \param buf Buffer to be zeroized + * \param len Length of the buffer in bytes + * + */ +void mbedtls_platform_zeroize(void *buf, size_t len); +#endif + +#if defined(MBEDTLS_HAVE_TIME_DATE) +/** + * \brief Platform-specific implementation of gmtime_r() + * + * The function is a thread-safe abstraction that behaves + * similarly to the gmtime_r() function from Unix/POSIX. + * + * Mbed TLS will try to identify the underlying platform and + * make use of an appropriate underlying implementation (e.g. + * gmtime_r() for POSIX and gmtime_s() for Windows). If this is + * not possible, then gmtime() will be used. In this case, calls + * from the library to gmtime() will be guarded by the mutex + * mbedtls_threading_gmtime_mutex if MBEDTLS_THREADING_C is + * enabled. It is recommended that calls from outside the library + * are also guarded by this mutex. + * + * If MBEDTLS_PLATFORM_GMTIME_R_ALT is defined, then Mbed TLS will + * unconditionally use the alternative implementation for + * mbedtls_platform_gmtime_r() supplied by the user at compile time. + * + * \param tt Pointer to an object containing time (in seconds) since the + * epoch to be converted + * \param tm_buf Pointer to an object where the results will be stored + * + * \return Pointer to an object of type struct tm on success, otherwise + * NULL + */ +struct tm *mbedtls_platform_gmtime_r(const mbedtls_time_t *tt, + struct tm *tm_buf); +#endif /* MBEDTLS_HAVE_TIME_DATE */ + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_PLATFORM_UTIL_H */ diff --git a/include/mbedtls/poly1305.h b/include/mbedtls/poly1305.h new file mode 100644 index 0000000..61bcaa6 --- /dev/null +++ b/include/mbedtls/poly1305.h @@ -0,0 +1,168 @@ +/** + * \file poly1305.h + * + * \brief This file contains Poly1305 definitions and functions. + * + * Poly1305 is a one-time message authenticator that can be used to + * authenticate messages. Poly1305-AES was created by Daniel + * Bernstein https://cr.yp.to/mac/poly1305-20050329.pdf The generic + * Poly1305 algorithm (not tied to AES) was also standardized in RFC + * 7539. + * + * \author Daniel King <damaki.gh@gmail.com> + */ + +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_POLY1305_H +#define MBEDTLS_POLY1305_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stdint.h> +#include <stddef.h> + +/** Invalid input parameter(s). */ +#define MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA -0x0057 + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_POLY1305_ALT) + +typedef struct mbedtls_poly1305_context { + uint32_t MBEDTLS_PRIVATE(r)[4]; /** The value for 'r' (low 128 bits of the key). */ + uint32_t MBEDTLS_PRIVATE(s)[4]; /** The value for 's' (high 128 bits of the key). */ + uint32_t MBEDTLS_PRIVATE(acc)[5]; /** The accumulator number. */ + uint8_t MBEDTLS_PRIVATE(queue)[16]; /** The current partial block of data. */ + size_t MBEDTLS_PRIVATE(queue_len); /** The number of bytes stored in 'queue'. */ +} +mbedtls_poly1305_context; + +#else /* MBEDTLS_POLY1305_ALT */ +#include "poly1305_alt.h" +#endif /* MBEDTLS_POLY1305_ALT */ + +/** + * \brief This function initializes the specified Poly1305 context. + * + * It must be the first API called before using + * the context. + * + * It is usually followed by a call to + * \c mbedtls_poly1305_starts(), then one or more calls to + * \c mbedtls_poly1305_update(), then one call to + * \c mbedtls_poly1305_finish(), then finally + * \c mbedtls_poly1305_free(). + * + * \param ctx The Poly1305 context to initialize. This must + * not be \c NULL. + */ +void mbedtls_poly1305_init(mbedtls_poly1305_context *ctx); + +/** + * \brief This function releases and clears the specified + * Poly1305 context. + * + * \param ctx The Poly1305 context to clear. This may be \c NULL, in which + * case this function is a no-op. If it is not \c NULL, it must + * point to an initialized Poly1305 context. + */ +void mbedtls_poly1305_free(mbedtls_poly1305_context *ctx); + +/** + * \brief This function sets the one-time authentication key. + * + * \warning The key must be unique and unpredictable for each + * invocation of Poly1305. + * + * \param ctx The Poly1305 context to which the key should be bound. + * This must be initialized. + * \param key The buffer containing the \c 32 Byte (\c 256 Bit) key. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_poly1305_starts(mbedtls_poly1305_context *ctx, + const unsigned char key[32]); + +/** + * \brief This functions feeds an input buffer into an ongoing + * Poly1305 computation. + * + * It is called between \c mbedtls_cipher_poly1305_starts() and + * \c mbedtls_cipher_poly1305_finish(). + * It can be called repeatedly to process a stream of data. + * + * \param ctx The Poly1305 context to use for the Poly1305 operation. + * This must be initialized and bound to a key. + * \param ilen The length of the input data in Bytes. + * Any value is accepted. + * \param input The buffer holding the input data. + * This pointer can be \c NULL if `ilen == 0`. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_poly1305_update(mbedtls_poly1305_context *ctx, + const unsigned char *input, + size_t ilen); + +/** + * \brief This function generates the Poly1305 Message + * Authentication Code (MAC). + * + * \param ctx The Poly1305 context to use for the Poly1305 operation. + * This must be initialized and bound to a key. + * \param mac The buffer to where the MAC is written. This must + * be a writable buffer of length \c 16 Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_poly1305_finish(mbedtls_poly1305_context *ctx, + unsigned char mac[16]); + +/** + * \brief This function calculates the Poly1305 MAC of the input + * buffer with the provided key. + * + * \warning The key must be unique and unpredictable for each + * invocation of Poly1305. + * + * \param key The buffer containing the \c 32 Byte (\c 256 Bit) key. + * \param ilen The length of the input data in Bytes. + * Any value is accepted. + * \param input The buffer holding the input data. + * This pointer can be \c NULL if `ilen == 0`. + * \param mac The buffer to where the MAC is written. This must be + * a writable buffer of length \c 16 Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_poly1305_mac(const unsigned char key[32], + const unsigned char *input, + size_t ilen, + unsigned char mac[16]); + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief The Poly1305 checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_poly1305_self_test(int verbose); +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_POLY1305_H */ diff --git a/include/mbedtls/private_access.h b/include/mbedtls/private_access.h new file mode 100644 index 0000000..580f3eb --- /dev/null +++ b/include/mbedtls/private_access.h @@ -0,0 +1,20 @@ +/** + * \file private_access.h + * + * \brief Macro wrapper for struct's members. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_PRIVATE_ACCESS_H +#define MBEDTLS_PRIVATE_ACCESS_H + +#ifndef MBEDTLS_ALLOW_PRIVATE_ACCESS +#define MBEDTLS_PRIVATE(member) private_##member +#else +#define MBEDTLS_PRIVATE(member) member +#endif + +#endif /* MBEDTLS_PRIVATE_ACCESS_H */ diff --git a/include/mbedtls/psa_util.h b/include/mbedtls/psa_util.h new file mode 100644 index 0000000..643e8aa --- /dev/null +++ b/include/mbedtls/psa_util.h @@ -0,0 +1,104 @@ +/** + * \file psa_util.h + * + * \brief Utility functions for the use of the PSA Crypto library. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_PSA_UTIL_H +#define MBEDTLS_PSA_UTIL_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#if defined(MBEDTLS_PSA_CRYPTO_C) + +/* Expose whatever RNG the PSA subsystem uses to applications using the + * mbedtls_xxx API. The declarations and definitions here need to be + * consistent with the implementation in library/psa_crypto_random_impl.h. + * See that file for implementation documentation. */ + + +/* The type of a `f_rng` random generator function that many library functions + * take. + * + * This type name is not part of the Mbed TLS stable API. It may be renamed + * or moved without warning. + */ +typedef int mbedtls_f_rng_t(void *p_rng, unsigned char *output, size_t output_size); + +#if defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) + +/** The random generator function for the PSA subsystem. + * + * This function is suitable as the `f_rng` random generator function + * parameter of many `mbedtls_xxx` functions. Use #MBEDTLS_PSA_RANDOM_STATE + * to obtain the \p p_rng parameter. + * + * The implementation of this function depends on the configuration of the + * library. + * + * \note Depending on the configuration, this may be a function or + * a pointer to a function. + * + * \note This function may only be used if the PSA crypto subsystem is active. + * This means that you must call psa_crypto_init() before any call to + * this function, and you must not call this function after calling + * mbedtls_psa_crypto_free(). + * + * \param p_rng The random generator context. This must be + * #MBEDTLS_PSA_RANDOM_STATE. No other state is + * supported. + * \param output The buffer to fill. It must have room for + * \c output_size bytes. + * \param output_size The number of bytes to write to \p output. + * This function may fail if \p output_size is too + * large. It is guaranteed to accept any output size + * requested by Mbed TLS library functions. The + * maximum request size depends on the library + * configuration. + * + * \return \c 0 on success. + * \return An `MBEDTLS_ERR_ENTROPY_xxx`, + * `MBEDTLS_ERR_PLATFORM_xxx, + * `MBEDTLS_ERR_CTR_DRBG_xxx` or + * `MBEDTLS_ERR_HMAC_DRBG_xxx` on error. + */ +int mbedtls_psa_get_random(void *p_rng, + unsigned char *output, + size_t output_size); + +/** The random generator state for the PSA subsystem. + * + * This macro expands to an expression which is suitable as the `p_rng` + * random generator state parameter of many `mbedtls_xxx` functions. + * It must be used in combination with the random generator function + * mbedtls_psa_get_random(). + * + * The implementation of this macro depends on the configuration of the + * library. Do not make any assumption on its nature. + */ +#define MBEDTLS_PSA_RANDOM_STATE NULL + +#else /* !defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) */ + +#if defined(MBEDTLS_CTR_DRBG_C) +#include "mbedtls/ctr_drbg.h" +typedef mbedtls_ctr_drbg_context mbedtls_psa_drbg_context_t; +static mbedtls_f_rng_t *const mbedtls_psa_get_random = mbedtls_ctr_drbg_random; +#elif defined(MBEDTLS_HMAC_DRBG_C) +#include "mbedtls/hmac_drbg.h" +typedef mbedtls_hmac_drbg_context mbedtls_psa_drbg_context_t; +static mbedtls_f_rng_t *const mbedtls_psa_get_random = mbedtls_hmac_drbg_random; +#endif +extern mbedtls_psa_drbg_context_t *const mbedtls_psa_random_state; + +#define MBEDTLS_PSA_RANDOM_STATE mbedtls_psa_random_state + +#endif /* !defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) */ + +#endif /* MBEDTLS_PSA_CRYPTO_C */ +#endif /* MBEDTLS_PSA_UTIL_H */ diff --git a/include/mbedtls/ripemd160.h b/include/mbedtls/ripemd160.h new file mode 100644 index 0000000..279f92b --- /dev/null +++ b/include/mbedtls/ripemd160.h @@ -0,0 +1,136 @@ +/** + * \file ripemd160.h + * + * \brief RIPE MD-160 message digest + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_RIPEMD160_H +#define MBEDTLS_RIPEMD160_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stddef.h> +#include <stdint.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_RIPEMD160_ALT) +// Regular implementation +// + +/** + * \brief RIPEMD-160 context structure + */ +typedef struct mbedtls_ripemd160_context { + uint32_t MBEDTLS_PRIVATE(total)[2]; /*!< number of bytes processed */ + uint32_t MBEDTLS_PRIVATE(state)[5]; /*!< intermediate digest state */ + unsigned char MBEDTLS_PRIVATE(buffer)[64]; /*!< data block being processed */ +} +mbedtls_ripemd160_context; + +#else /* MBEDTLS_RIPEMD160_ALT */ +#include "ripemd160_alt.h" +#endif /* MBEDTLS_RIPEMD160_ALT */ + +/** + * \brief Initialize RIPEMD-160 context + * + * \param ctx RIPEMD-160 context to be initialized + */ +void mbedtls_ripemd160_init(mbedtls_ripemd160_context *ctx); + +/** + * \brief Clear RIPEMD-160 context + * + * \param ctx RIPEMD-160 context to be cleared + */ +void mbedtls_ripemd160_free(mbedtls_ripemd160_context *ctx); + +/** + * \brief Clone (the state of) a RIPEMD-160 context + * + * \param dst The destination context + * \param src The context to be cloned + */ +void mbedtls_ripemd160_clone(mbedtls_ripemd160_context *dst, + const mbedtls_ripemd160_context *src); + +/** + * \brief RIPEMD-160 context setup + * + * \param ctx context to be initialized + * + * \return 0 if successful + */ +int mbedtls_ripemd160_starts(mbedtls_ripemd160_context *ctx); + +/** + * \brief RIPEMD-160 process buffer + * + * \param ctx RIPEMD-160 context + * \param input buffer holding the data + * \param ilen length of the input data + * + * \return 0 if successful + */ +int mbedtls_ripemd160_update(mbedtls_ripemd160_context *ctx, + const unsigned char *input, + size_t ilen); + +/** + * \brief RIPEMD-160 final digest + * + * \param ctx RIPEMD-160 context + * \param output RIPEMD-160 checksum result + * + * \return 0 if successful + */ +int mbedtls_ripemd160_finish(mbedtls_ripemd160_context *ctx, + unsigned char output[20]); + +/** + * \brief RIPEMD-160 process data block (internal use only) + * + * \param ctx RIPEMD-160 context + * \param data buffer holding one block of data + * + * \return 0 if successful + */ +int mbedtls_internal_ripemd160_process(mbedtls_ripemd160_context *ctx, + const unsigned char data[64]); + +/** + * \brief Output = RIPEMD-160( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output RIPEMD-160 checksum result + * + * \return 0 if successful + */ +int mbedtls_ripemd160(const unsigned char *input, + size_t ilen, + unsigned char output[20]); + +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_ripemd160_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_ripemd160.h */ diff --git a/include/mbedtls/rsa.h b/include/mbedtls/rsa.h new file mode 100644 index 0000000..be831f1 --- /dev/null +++ b/include/mbedtls/rsa.h @@ -0,0 +1,1152 @@ +/** + * \file rsa.h + * + * \brief This file provides an API for the RSA public-key cryptosystem. + * + * The RSA public-key cryptosystem is defined in <em>Public-Key + * Cryptography Standards (PKCS) #1 v1.5: RSA Encryption</em> + * and <em>Public-Key Cryptography Standards (PKCS) #1 v2.1: + * RSA Cryptography Specifications</em>. + * + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_RSA_H +#define MBEDTLS_RSA_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/bignum.h" +#include "mbedtls/md.h" + +#if defined(MBEDTLS_THREADING_C) +#include "mbedtls/threading.h" +#endif + +/* + * RSA Error codes + */ +/** Bad input parameters to function. */ +#define MBEDTLS_ERR_RSA_BAD_INPUT_DATA -0x4080 +/** Input data contains invalid padding and is rejected. */ +#define MBEDTLS_ERR_RSA_INVALID_PADDING -0x4100 +/** Something failed during generation of a key. */ +#define MBEDTLS_ERR_RSA_KEY_GEN_FAILED -0x4180 +/** Key failed to pass the validity check of the library. */ +#define MBEDTLS_ERR_RSA_KEY_CHECK_FAILED -0x4200 +/** The public key operation failed. */ +#define MBEDTLS_ERR_RSA_PUBLIC_FAILED -0x4280 +/** The private key operation failed. */ +#define MBEDTLS_ERR_RSA_PRIVATE_FAILED -0x4300 +/** The PKCS#1 verification failed. */ +#define MBEDTLS_ERR_RSA_VERIFY_FAILED -0x4380 +/** The output buffer for decryption is not large enough. */ +#define MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE -0x4400 +/** The random generator failed to generate non-zeros. */ +#define MBEDTLS_ERR_RSA_RNG_FAILED -0x4480 + +/* + * RSA constants + */ + +#define MBEDTLS_RSA_PKCS_V15 0 /**< Use PKCS#1 v1.5 encoding. */ +#define MBEDTLS_RSA_PKCS_V21 1 /**< Use PKCS#1 v2.1 encoding. */ + +#define MBEDTLS_RSA_SIGN 1 /**< Identifier for RSA signature operations. */ +#define MBEDTLS_RSA_CRYPT 2 /**< Identifier for RSA encryption and decryption operations. */ + +#define MBEDTLS_RSA_SALT_LEN_ANY -1 + +/* + * The above constants may be used even if the RSA module is compile out, + * eg for alternative (PKCS#11) RSA implementations in the PK layers. + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_RSA_ALT) +// Regular implementation +// + +#if !defined(MBEDTLS_RSA_GEN_KEY_MIN_BITS) +#define MBEDTLS_RSA_GEN_KEY_MIN_BITS 1024 +#elif MBEDTLS_RSA_GEN_KEY_MIN_BITS < 128 +#error "MBEDTLS_RSA_GEN_KEY_MIN_BITS must be at least 128 bits" +#endif + +/** + * \brief The RSA context structure. + */ +typedef struct mbedtls_rsa_context { + int MBEDTLS_PRIVATE(ver); /*!< Reserved for internal purposes. + * Do not set this field in application + * code. Its meaning might change without + * notice. */ + size_t MBEDTLS_PRIVATE(len); /*!< The size of \p N in Bytes. */ + + mbedtls_mpi MBEDTLS_PRIVATE(N); /*!< The public modulus. */ + mbedtls_mpi MBEDTLS_PRIVATE(E); /*!< The public exponent. */ + + mbedtls_mpi MBEDTLS_PRIVATE(D); /*!< The private exponent. */ + mbedtls_mpi MBEDTLS_PRIVATE(P); /*!< The first prime factor. */ + mbedtls_mpi MBEDTLS_PRIVATE(Q); /*!< The second prime factor. */ + + mbedtls_mpi MBEDTLS_PRIVATE(DP); /*!< <code>D % (P - 1)</code>. */ + mbedtls_mpi MBEDTLS_PRIVATE(DQ); /*!< <code>D % (Q - 1)</code>. */ + mbedtls_mpi MBEDTLS_PRIVATE(QP); /*!< <code>1 / (Q % P)</code>. */ + + mbedtls_mpi MBEDTLS_PRIVATE(RN); /*!< cached <code>R^2 mod N</code>. */ + + mbedtls_mpi MBEDTLS_PRIVATE(RP); /*!< cached <code>R^2 mod P</code>. */ + mbedtls_mpi MBEDTLS_PRIVATE(RQ); /*!< cached <code>R^2 mod Q</code>. */ + + mbedtls_mpi MBEDTLS_PRIVATE(Vi); /*!< The cached blinding value. */ + mbedtls_mpi MBEDTLS_PRIVATE(Vf); /*!< The cached un-blinding value. */ + + int MBEDTLS_PRIVATE(padding); /*!< Selects padding mode: + #MBEDTLS_RSA_PKCS_V15 for 1.5 padding and + #MBEDTLS_RSA_PKCS_V21 for OAEP or PSS. */ + int MBEDTLS_PRIVATE(hash_id); /*!< Hash identifier of mbedtls_md_type_t type, + as specified in md.h for use in the MGF + mask generating function used in the + EME-OAEP and EMSA-PSS encodings. */ +#if defined(MBEDTLS_THREADING_C) + /* Invariant: the mutex is initialized iff ver != 0. */ + mbedtls_threading_mutex_t MBEDTLS_PRIVATE(mutex); /*!< Thread-safety mutex. */ +#endif +} +mbedtls_rsa_context; + +#else /* MBEDTLS_RSA_ALT */ +#include "rsa_alt.h" +#endif /* MBEDTLS_RSA_ALT */ + +/** + * \brief This function initializes an RSA context. + * + * \note This function initializes the padding and the hash + * identifier to respectively #MBEDTLS_RSA_PKCS_V15 and + * #MBEDTLS_MD_NONE. See mbedtls_rsa_set_padding() for more + * information about those parameters. + * + * \param ctx The RSA context to initialize. This must not be \c NULL. + */ +void mbedtls_rsa_init(mbedtls_rsa_context *ctx); + +/** + * \brief This function sets padding for an already initialized RSA + * context. + * + * \note Set padding to #MBEDTLS_RSA_PKCS_V21 for the RSAES-OAEP + * encryption scheme and the RSASSA-PSS signature scheme. + * + * \note The \p hash_id parameter is ignored when using + * #MBEDTLS_RSA_PKCS_V15 padding. + * + * \note The choice of padding mode is strictly enforced for private + * key operations, since there might be security concerns in + * mixing padding modes. For public key operations it is + * a default value, which can be overridden by calling specific + * \c mbedtls_rsa_rsaes_xxx or \c mbedtls_rsa_rsassa_xxx + * functions. + * + * \note The hash selected in \p hash_id is always used for OEAP + * encryption. For PSS signatures, it is always used for + * making signatures, but can be overridden for verifying them. + * If set to #MBEDTLS_MD_NONE, it is always overridden. + * + * \param ctx The initialized RSA context to be configured. + * \param padding The padding mode to use. This must be either + * #MBEDTLS_RSA_PKCS_V15 or #MBEDTLS_RSA_PKCS_V21. + * \param hash_id The hash identifier for PSS or OAEP, if \p padding is + * #MBEDTLS_RSA_PKCS_V21. #MBEDTLS_MD_NONE is accepted by this + * function but may be not suitable for some operations. + * Ignored if \p padding is #MBEDTLS_RSA_PKCS_V15. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_RSA_INVALID_PADDING failure: + * \p padding or \p hash_id is invalid. + */ +int mbedtls_rsa_set_padding(mbedtls_rsa_context *ctx, int padding, + mbedtls_md_type_t hash_id); + +/** + * \brief This function retrieves padding mode of initialized + * RSA context. + * + * \param ctx The initialized RSA context. + * + * \return RSA padding mode. + * + */ +int mbedtls_rsa_get_padding_mode(const mbedtls_rsa_context *ctx); + +/** + * \brief This function retrieves hash identifier of mbedtls_md_type_t + * type. + * + * \param ctx The initialized RSA context. + * + * \return Hash identifier of mbedtls_md_type_t type. + * + */ +int mbedtls_rsa_get_md_alg(const mbedtls_rsa_context *ctx); + +/** + * \brief This function imports a set of core parameters into an + * RSA context. + * + * \note This function can be called multiple times for successive + * imports, if the parameters are not simultaneously present. + * + * Any sequence of calls to this function should be followed + * by a call to mbedtls_rsa_complete(), which checks and + * completes the provided information to a ready-for-use + * public or private RSA key. + * + * \note See mbedtls_rsa_complete() for more information on which + * parameters are necessary to set up a private or public + * RSA key. + * + * \note The imported parameters are copied and need not be preserved + * for the lifetime of the RSA context being set up. + * + * \param ctx The initialized RSA context to store the parameters in. + * \param N The RSA modulus. This may be \c NULL. + * \param P The first prime factor of \p N. This may be \c NULL. + * \param Q The second prime factor of \p N. This may be \c NULL. + * \param D The private exponent. This may be \c NULL. + * \param E The public exponent. This may be \c NULL. + * + * \return \c 0 on success. + * \return A non-zero error code on failure. + */ +int mbedtls_rsa_import(mbedtls_rsa_context *ctx, + const mbedtls_mpi *N, + const mbedtls_mpi *P, const mbedtls_mpi *Q, + const mbedtls_mpi *D, const mbedtls_mpi *E); + +/** + * \brief This function imports core RSA parameters, in raw big-endian + * binary format, into an RSA context. + * + * \note This function can be called multiple times for successive + * imports, if the parameters are not simultaneously present. + * + * Any sequence of calls to this function should be followed + * by a call to mbedtls_rsa_complete(), which checks and + * completes the provided information to a ready-for-use + * public or private RSA key. + * + * \note See mbedtls_rsa_complete() for more information on which + * parameters are necessary to set up a private or public + * RSA key. + * + * \note The imported parameters are copied and need not be preserved + * for the lifetime of the RSA context being set up. + * + * \param ctx The initialized RSA context to store the parameters in. + * \param N The RSA modulus. This may be \c NULL. + * \param N_len The Byte length of \p N; it is ignored if \p N == NULL. + * \param P The first prime factor of \p N. This may be \c NULL. + * \param P_len The Byte length of \p P; it is ignored if \p P == NULL. + * \param Q The second prime factor of \p N. This may be \c NULL. + * \param Q_len The Byte length of \p Q; it is ignored if \p Q == NULL. + * \param D The private exponent. This may be \c NULL. + * \param D_len The Byte length of \p D; it is ignored if \p D == NULL. + * \param E The public exponent. This may be \c NULL. + * \param E_len The Byte length of \p E; it is ignored if \p E == NULL. + * + * \return \c 0 on success. + * \return A non-zero error code on failure. + */ +int mbedtls_rsa_import_raw(mbedtls_rsa_context *ctx, + unsigned char const *N, size_t N_len, + unsigned char const *P, size_t P_len, + unsigned char const *Q, size_t Q_len, + unsigned char const *D, size_t D_len, + unsigned char const *E, size_t E_len); + +/** + * \brief This function completes an RSA context from + * a set of imported core parameters. + * + * To setup an RSA public key, precisely \c N and \c E + * must have been imported. + * + * To setup an RSA private key, sufficient information must + * be present for the other parameters to be derivable. + * + * The default implementation supports the following: + * <ul><li>Derive \c P, \c Q from \c N, \c D, \c E.</li> + * <li>Derive \c N, \c D from \c P, \c Q, \c E.</li></ul> + * Alternative implementations need not support these. + * + * If this function runs successfully, it guarantees that + * the RSA context can be used for RSA operations without + * the risk of failure or crash. + * + * \warning This function need not perform consistency checks + * for the imported parameters. In particular, parameters that + * are not needed by the implementation might be silently + * discarded and left unchecked. To check the consistency + * of the key material, see mbedtls_rsa_check_privkey(). + * + * \param ctx The initialized RSA context holding imported parameters. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_RSA_BAD_INPUT_DATA if the attempted derivations + * failed. + * + */ +int mbedtls_rsa_complete(mbedtls_rsa_context *ctx); + +/** + * \brief This function exports the core parameters of an RSA key. + * + * If this function runs successfully, the non-NULL buffers + * pointed to by \p N, \p P, \p Q, \p D, and \p E are fully + * written, with additional unused space filled leading by + * zero Bytes. + * + * Possible reasons for returning + * #MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED:<ul> + * <li>An alternative RSA implementation is in use, which + * stores the key externally, and either cannot or should + * not export it into RAM.</li> + * <li>A SW or HW implementation might not support a certain + * deduction. For example, \p P, \p Q from \p N, \p D, + * and \p E if the former are not part of the + * implementation.</li></ul> + * + * If the function fails due to an unsupported operation, + * the RSA context stays intact and remains usable. + * + * \param ctx The initialized RSA context. + * \param N The MPI to hold the RSA modulus. + * This may be \c NULL if this field need not be exported. + * \param P The MPI to hold the first prime factor of \p N. + * This may be \c NULL if this field need not be exported. + * \param Q The MPI to hold the second prime factor of \p N. + * This may be \c NULL if this field need not be exported. + * \param D The MPI to hold the private exponent. + * This may be \c NULL if this field need not be exported. + * \param E The MPI to hold the public exponent. + * This may be \c NULL if this field need not be exported. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED if exporting the + * requested parameters cannot be done due to missing + * functionality or because of security policies. + * \return A non-zero return code on any other failure. + * + */ +int mbedtls_rsa_export(const mbedtls_rsa_context *ctx, + mbedtls_mpi *N, mbedtls_mpi *P, mbedtls_mpi *Q, + mbedtls_mpi *D, mbedtls_mpi *E); + +/** + * \brief This function exports core parameters of an RSA key + * in raw big-endian binary format. + * + * If this function runs successfully, the non-NULL buffers + * pointed to by \p N, \p P, \p Q, \p D, and \p E are fully + * written, with additional unused space filled leading by + * zero Bytes. + * + * Possible reasons for returning + * #MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED:<ul> + * <li>An alternative RSA implementation is in use, which + * stores the key externally, and either cannot or should + * not export it into RAM.</li> + * <li>A SW or HW implementation might not support a certain + * deduction. For example, \p P, \p Q from \p N, \p D, + * and \p E if the former are not part of the + * implementation.</li></ul> + * If the function fails due to an unsupported operation, + * the RSA context stays intact and remains usable. + * + * \note The length parameters are ignored if the corresponding + * buffer pointers are NULL. + * + * \param ctx The initialized RSA context. + * \param N The Byte array to store the RSA modulus, + * or \c NULL if this field need not be exported. + * \param N_len The size of the buffer for the modulus. + * \param P The Byte array to hold the first prime factor of \p N, + * or \c NULL if this field need not be exported. + * \param P_len The size of the buffer for the first prime factor. + * \param Q The Byte array to hold the second prime factor of \p N, + * or \c NULL if this field need not be exported. + * \param Q_len The size of the buffer for the second prime factor. + * \param D The Byte array to hold the private exponent, + * or \c NULL if this field need not be exported. + * \param D_len The size of the buffer for the private exponent. + * \param E The Byte array to hold the public exponent, + * or \c NULL if this field need not be exported. + * \param E_len The size of the buffer for the public exponent. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED if exporting the + * requested parameters cannot be done due to missing + * functionality or because of security policies. + * \return A non-zero return code on any other failure. + */ +int mbedtls_rsa_export_raw(const mbedtls_rsa_context *ctx, + unsigned char *N, size_t N_len, + unsigned char *P, size_t P_len, + unsigned char *Q, size_t Q_len, + unsigned char *D, size_t D_len, + unsigned char *E, size_t E_len); + +/** + * \brief This function exports CRT parameters of a private RSA key. + * + * \note Alternative RSA implementations not using CRT-parameters + * internally can implement this function based on + * mbedtls_rsa_deduce_opt(). + * + * \param ctx The initialized RSA context. + * \param DP The MPI to hold \c D modulo `P-1`, + * or \c NULL if it need not be exported. + * \param DQ The MPI to hold \c D modulo `Q-1`, + * or \c NULL if it need not be exported. + * \param QP The MPI to hold modular inverse of \c Q modulo \c P, + * or \c NULL if it need not be exported. + * + * \return \c 0 on success. + * \return A non-zero error code on failure. + * + */ +int mbedtls_rsa_export_crt(const mbedtls_rsa_context *ctx, + mbedtls_mpi *DP, mbedtls_mpi *DQ, mbedtls_mpi *QP); + +/** + * \brief This function retrieves the length of RSA modulus in Bytes. + * + * \param ctx The initialized RSA context. + * + * \return The length of the RSA modulus in Bytes. + * + */ +size_t mbedtls_rsa_get_len(const mbedtls_rsa_context *ctx); + +/** + * \brief This function generates an RSA keypair. + * + * \note mbedtls_rsa_init() must be called before this function, + * to set up the RSA context. + * + * \param ctx The initialized RSA context used to hold the key. + * \param f_rng The RNG function to be used for key generation. + * This is mandatory and must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. + * This may be \c NULL if \p f_rng doesn't need a context. + * \param nbits The size of the public key in bits. + * \param exponent The public exponent to use. For example, \c 65537. + * This must be odd and greater than \c 1. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_gen_key(mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + unsigned int nbits, int exponent); + +/** + * \brief This function checks if a context contains at least an RSA + * public key. + * + * If the function runs successfully, it is guaranteed that + * enough information is present to perform an RSA public key + * operation using mbedtls_rsa_public(). + * + * \param ctx The initialized RSA context to check. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + * + */ +int mbedtls_rsa_check_pubkey(const mbedtls_rsa_context *ctx); + +/** + * \brief This function checks if a context contains an RSA private key + * and perform basic consistency checks. + * + * \note The consistency checks performed by this function not only + * ensure that mbedtls_rsa_private() can be called successfully + * on the given context, but that the various parameters are + * mutually consistent with high probability, in the sense that + * mbedtls_rsa_public() and mbedtls_rsa_private() are inverses. + * + * \warning This function should catch accidental misconfigurations + * like swapping of parameters, but it cannot establish full + * trust in neither the quality nor the consistency of the key + * material that was used to setup the given RSA context: + * <ul><li>Consistency: Imported parameters that are irrelevant + * for the implementation might be silently dropped. If dropped, + * the current function does not have access to them, + * and therefore cannot check them. See mbedtls_rsa_complete(). + * If you want to check the consistency of the entire + * content of a PKCS1-encoded RSA private key, for example, you + * should use mbedtls_rsa_validate_params() before setting + * up the RSA context. + * Additionally, if the implementation performs empirical checks, + * these checks substantiate but do not guarantee consistency.</li> + * <li>Quality: This function is not expected to perform + * extended quality assessments like checking that the prime + * factors are safe. Additionally, it is the responsibility of the + * user to ensure the trustworthiness of the source of his RSA + * parameters, which goes beyond what is effectively checkable + * by the library.</li></ul> + * + * \param ctx The initialized RSA context to check. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_check_privkey(const mbedtls_rsa_context *ctx); + +/** + * \brief This function checks a public-private RSA key pair. + * + * It checks each of the contexts, and makes sure they match. + * + * \param pub The initialized RSA context holding the public key. + * \param prv The initialized RSA context holding the private key. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_check_pub_priv(const mbedtls_rsa_context *pub, + const mbedtls_rsa_context *prv); + +/** + * \brief This function performs an RSA public key operation. + * + * \param ctx The initialized RSA context to use. + * \param input The input buffer. This must be a readable buffer + * of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * \param output The output buffer. This must be a writable buffer + * of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * + * \note This function does not handle message padding. + * + * \note Make sure to set \p input[0] = 0 or ensure that + * input is smaller than \c N. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_public(mbedtls_rsa_context *ctx, + const unsigned char *input, + unsigned char *output); + +/** + * \brief This function performs an RSA private key operation. + * + * \note Blinding is used if and only if a PRNG is provided. + * + * \note If blinding is used, both the base of exponentiation + * and the exponent are blinded, providing protection + * against some side-channel attacks. + * + * \warning It is deprecated and a security risk to not provide + * a PRNG here and thereby prevent the use of blinding. + * Future versions of the library may enforce the presence + * of a PRNG. + * + * \param ctx The initialized RSA context to use. + * \param f_rng The RNG function, used for blinding. It is mandatory. + * \param p_rng The RNG context to pass to \p f_rng. This may be \c NULL + * if \p f_rng doesn't need a context. + * \param input The input buffer. This must be a readable buffer + * of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * \param output The output buffer. This must be a writable buffer + * of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + * + */ +int mbedtls_rsa_private(mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + const unsigned char *input, + unsigned char *output); + +/** + * \brief This function adds the message padding, then performs an RSA + * operation. + * + * It is the generic wrapper for performing a PKCS#1 encryption + * operation. + * + * \param ctx The initialized RSA context to use. + * \param f_rng The RNG to use. It is used for padding generation + * and it is mandatory. + * \param p_rng The RNG context to be passed to \p f_rng. May be + * \c NULL if \p f_rng doesn't need a context argument. + * \param ilen The length of the plaintext in Bytes. + * \param input The input data to encrypt. This must be a readable + * buffer of size \p ilen Bytes. It may be \c NULL if + * `ilen == 0`. + * \param output The output buffer. This must be a writable buffer + * of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_pkcs1_encrypt(mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + size_t ilen, + const unsigned char *input, + unsigned char *output); + +/** + * \brief This function performs a PKCS#1 v1.5 encryption operation + * (RSAES-PKCS1-v1_5-ENCRYPT). + * + * \param ctx The initialized RSA context to use. + * \param f_rng The RNG function to use. It is mandatory and used for + * padding generation. + * \param p_rng The RNG context to be passed to \p f_rng. This may + * be \c NULL if \p f_rng doesn't need a context argument. + * \param ilen The length of the plaintext in Bytes. + * \param input The input data to encrypt. This must be a readable + * buffer of size \p ilen Bytes. It may be \c NULL if + * `ilen == 0`. + * \param output The output buffer. This must be a writable buffer + * of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_rsaes_pkcs1_v15_encrypt(mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + size_t ilen, + const unsigned char *input, + unsigned char *output); + +/** + * \brief This function performs a PKCS#1 v2.1 OAEP encryption + * operation (RSAES-OAEP-ENCRYPT). + * + * \note The output buffer must be as large as the size + * of ctx->N. For example, 128 Bytes if RSA-1024 is used. + * + * \param ctx The initialized RSA context to use. + * \param f_rng The RNG function to use. This is needed for padding + * generation and is mandatory. + * \param p_rng The RNG context to be passed to \p f_rng. This may + * be \c NULL if \p f_rng doesn't need a context argument. + * \param label The buffer holding the custom label to use. + * This must be a readable buffer of length \p label_len + * Bytes. It may be \c NULL if \p label_len is \c 0. + * \param label_len The length of the label in Bytes. + * \param ilen The length of the plaintext buffer \p input in Bytes. + * \param input The input data to encrypt. This must be a readable + * buffer of size \p ilen Bytes. It may be \c NULL if + * `ilen == 0`. + * \param output The output buffer. This must be a writable buffer + * of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_rsaes_oaep_encrypt(mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + const unsigned char *label, size_t label_len, + size_t ilen, + const unsigned char *input, + unsigned char *output); + +/** + * \brief This function performs an RSA operation, then removes the + * message padding. + * + * It is the generic wrapper for performing a PKCS#1 decryption + * operation. + * + * \warning When \p ctx->padding is set to #MBEDTLS_RSA_PKCS_V15, + * mbedtls_rsa_rsaes_pkcs1_v15_decrypt() is called, which is an + * inherently dangerous function (CWE-242). + * + * \note The output buffer length \c output_max_len should be + * as large as the size \p ctx->len of \p ctx->N (for example, + * 128 Bytes if RSA-1024 is used) to be able to hold an + * arbitrary decrypted message. If it is not large enough to + * hold the decryption of the particular ciphertext provided, + * the function returns \c MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE. + * + * \param ctx The initialized RSA context to use. + * \param f_rng The RNG function. This is used for blinding and is + * mandatory; see mbedtls_rsa_private() for more. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL if \p f_rng doesn't need a context. + * \param olen The address at which to store the length of + * the plaintext. This must not be \c NULL. + * \param input The ciphertext buffer. This must be a readable buffer + * of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * \param output The buffer used to hold the plaintext. This must + * be a writable buffer of length \p output_max_len Bytes. + * \param output_max_len The length in Bytes of the output buffer \p output. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_pkcs1_decrypt(mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len); + +/** + * \brief This function performs a PKCS#1 v1.5 decryption + * operation (RSAES-PKCS1-v1_5-DECRYPT). + * + * \warning This is an inherently dangerous function (CWE-242). Unless + * it is used in a side channel free and safe way (eg. + * implementing the TLS protocol as per 7.4.7.1 of RFC 5246), + * the calling code is vulnerable. + * + * \note The output buffer length \c output_max_len should be + * as large as the size \p ctx->len of \p ctx->N, for example, + * 128 Bytes if RSA-1024 is used, to be able to hold an + * arbitrary decrypted message. If it is not large enough to + * hold the decryption of the particular ciphertext provided, + * the function returns #MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE. + * + * \param ctx The initialized RSA context to use. + * \param f_rng The RNG function. This is used for blinding and is + * mandatory; see mbedtls_rsa_private() for more. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL if \p f_rng doesn't need a context. + * \param olen The address at which to store the length of + * the plaintext. This must not be \c NULL. + * \param input The ciphertext buffer. This must be a readable buffer + * of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * \param output The buffer used to hold the plaintext. This must + * be a writable buffer of length \p output_max_len Bytes. + * \param output_max_len The length in Bytes of the output buffer \p output. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + * + */ +int mbedtls_rsa_rsaes_pkcs1_v15_decrypt(mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len); + +/** + * \brief This function performs a PKCS#1 v2.1 OAEP decryption + * operation (RSAES-OAEP-DECRYPT). + * + * \note The output buffer length \c output_max_len should be + * as large as the size \p ctx->len of \p ctx->N, for + * example, 128 Bytes if RSA-1024 is used, to be able to + * hold an arbitrary decrypted message. If it is not + * large enough to hold the decryption of the particular + * ciphertext provided, the function returns + * #MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE. + * + * \param ctx The initialized RSA context to use. + * \param f_rng The RNG function. This is used for blinding and is + * mandatory. + * \param p_rng The RNG context to be passed to \p f_rng. This may be + * \c NULL if \p f_rng doesn't need a context. + * \param label The buffer holding the custom label to use. + * This must be a readable buffer of length \p label_len + * Bytes. It may be \c NULL if \p label_len is \c 0. + * \param label_len The length of the label in Bytes. + * \param olen The address at which to store the length of + * the plaintext. This must not be \c NULL. + * \param input The ciphertext buffer. This must be a readable buffer + * of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * \param output The buffer used to hold the plaintext. This must + * be a writable buffer of length \p output_max_len Bytes. + * \param output_max_len The length in Bytes of the output buffer \p output. + * + * \return \c 0 on success. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_rsaes_oaep_decrypt(mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + const unsigned char *label, size_t label_len, + size_t *olen, + const unsigned char *input, + unsigned char *output, + size_t output_max_len); + +/** + * \brief This function performs a private RSA operation to sign + * a message digest using PKCS#1. + * + * It is the generic wrapper for performing a PKCS#1 + * signature. + * + * \note The \p sig buffer must be as large as the size + * of \p ctx->N. For example, 128 Bytes if RSA-1024 is used. + * + * \note For PKCS#1 v2.1 encoding, see comments on + * mbedtls_rsa_rsassa_pss_sign() for details on + * \p md_alg and \p hash_id. + * + * \param ctx The initialized RSA context to use. + * \param f_rng The RNG function to use. This is mandatory and + * must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be \c NULL + * if \p f_rng doesn't need a context argument. + * \param md_alg The message-digest algorithm used to hash the original data. + * Use #MBEDTLS_MD_NONE for signing raw data. + * \param hashlen The length of the message digest or raw data in Bytes. + * If \p md_alg is not #MBEDTLS_MD_NONE, this must match the + * output length of the corresponding hash algorithm. + * \param hash The buffer holding the message digest or raw data. + * This must be a readable buffer of at least \p hashlen Bytes. + * \param sig The buffer to hold the signature. This must be a writable + * buffer of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. A buffer length of + * #MBEDTLS_MPI_MAX_SIZE is always safe. + * + * \return \c 0 if the signing operation was successful. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_pkcs1_sign(mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig); + +/** + * \brief This function performs a PKCS#1 v1.5 signature + * operation (RSASSA-PKCS1-v1_5-SIGN). + * + * \param ctx The initialized RSA context to use. + * \param f_rng The RNG function. This is used for blinding and is + * mandatory; see mbedtls_rsa_private() for more. + * \param p_rng The RNG context to be passed to \p f_rng. This may be \c NULL + * if \p f_rng doesn't need a context argument. + * \param md_alg The message-digest algorithm used to hash the original data. + * Use #MBEDTLS_MD_NONE for signing raw data. + * \param hashlen The length of the message digest or raw data in Bytes. + * If \p md_alg is not #MBEDTLS_MD_NONE, this must match the + * output length of the corresponding hash algorithm. + * \param hash The buffer holding the message digest or raw data. + * This must be a readable buffer of at least \p hashlen Bytes. + * \param sig The buffer to hold the signature. This must be a writable + * buffer of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. A buffer length of + * #MBEDTLS_MPI_MAX_SIZE is always safe. + * + * \return \c 0 if the signing operation was successful. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_rsassa_pkcs1_v15_sign(mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig); + +/** + * \brief This function performs a PKCS#1 v2.1 PSS signature + * operation (RSASSA-PSS-SIGN). + * + * \note The \c hash_id set in \p ctx by calling + * mbedtls_rsa_set_padding() selects the hash used for the + * encoding operation and for the mask generation function + * (MGF1). For more details on the encoding operation and the + * mask generation function, consult <em>RFC-3447: Public-Key + * Cryptography Standards (PKCS) #1 v2.1: RSA Cryptography + * Specifications</em>. + * + * \note This function enforces that the provided salt length complies + * with FIPS 186-4 §5.5 (e) and RFC 8017 (PKCS#1 v2.2) §9.1.1 + * step 3. The constraint is that the hash length plus the salt + * length plus 2 bytes must be at most the key length. If this + * constraint is not met, this function returns + * #MBEDTLS_ERR_RSA_BAD_INPUT_DATA. + * + * \param ctx The initialized RSA context to use. + * \param f_rng The RNG function. It is mandatory and must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be \c NULL + * if \p f_rng doesn't need a context argument. + * \param md_alg The message-digest algorithm used to hash the original data. + * Use #MBEDTLS_MD_NONE for signing raw data. + * \param hashlen The length of the message digest or raw data in Bytes. + * If \p md_alg is not #MBEDTLS_MD_NONE, this must match the + * output length of the corresponding hash algorithm. + * \param hash The buffer holding the message digest or raw data. + * This must be a readable buffer of at least \p hashlen Bytes. + * \param saltlen The length of the salt that should be used. + * If passed #MBEDTLS_RSA_SALT_LEN_ANY, the function will use + * the largest possible salt length up to the hash length, + * which is the largest permitted by some standards including + * FIPS 186-4 §5.5. + * \param sig The buffer to hold the signature. This must be a writable + * buffer of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. A buffer length of + * #MBEDTLS_MPI_MAX_SIZE is always safe. + * + * \return \c 0 if the signing operation was successful. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_rsassa_pss_sign_ext(mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + int saltlen, + unsigned char *sig); + +/** + * \brief This function performs a PKCS#1 v2.1 PSS signature + * operation (RSASSA-PSS-SIGN). + * + * \note The \c hash_id set in \p ctx by calling + * mbedtls_rsa_set_padding() selects the hash used for the + * encoding operation and for the mask generation function + * (MGF1). For more details on the encoding operation and the + * mask generation function, consult <em>RFC-3447: Public-Key + * Cryptography Standards (PKCS) #1 v2.1: RSA Cryptography + * Specifications</em>. + * + * \note This function always uses the maximum possible salt size, + * up to the length of the payload hash. This choice of salt + * size complies with FIPS 186-4 §5.5 (e) and RFC 8017 (PKCS#1 + * v2.2) §9.1.1 step 3. Furthermore this function enforces a + * minimum salt size which is the hash size minus 2 bytes. If + * this minimum size is too large given the key size (the salt + * size, plus the hash size, plus 2 bytes must be no more than + * the key size in bytes), this function returns + * #MBEDTLS_ERR_RSA_BAD_INPUT_DATA. + * + * \param ctx The initialized RSA context to use. + * \param f_rng The RNG function. It is mandatory and must not be \c NULL. + * \param p_rng The RNG context to be passed to \p f_rng. This may be \c NULL + * if \p f_rng doesn't need a context argument. + * \param md_alg The message-digest algorithm used to hash the original data. + * Use #MBEDTLS_MD_NONE for signing raw data. + * \param hashlen The length of the message digest or raw data in Bytes. + * If \p md_alg is not #MBEDTLS_MD_NONE, this must match the + * output length of the corresponding hash algorithm. + * \param hash The buffer holding the message digest or raw data. + * This must be a readable buffer of at least \p hashlen Bytes. + * \param sig The buffer to hold the signature. This must be a writable + * buffer of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. A buffer length of + * #MBEDTLS_MPI_MAX_SIZE is always safe. + * + * \return \c 0 if the signing operation was successful. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_rsassa_pss_sign(mbedtls_rsa_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + unsigned char *sig); + +/** + * \brief This function performs a public RSA operation and checks + * the message digest. + * + * This is the generic wrapper for performing a PKCS#1 + * verification. + * + * \note For PKCS#1 v2.1 encoding, see comments on + * mbedtls_rsa_rsassa_pss_verify() about \c md_alg and + * \c hash_id. + * + * \param ctx The initialized RSA public key context to use. + * \param md_alg The message-digest algorithm used to hash the original data. + * Use #MBEDTLS_MD_NONE for signing raw data. + * \param hashlen The length of the message digest or raw data in Bytes. + * If \p md_alg is not #MBEDTLS_MD_NONE, this must match the + * output length of the corresponding hash algorithm. + * \param hash The buffer holding the message digest or raw data. + * This must be a readable buffer of at least \p hashlen Bytes. + * \param sig The buffer holding the signature. This must be a readable + * buffer of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * + * \return \c 0 if the verify operation was successful. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_pkcs1_verify(mbedtls_rsa_context *ctx, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig); + +/** + * \brief This function performs a PKCS#1 v1.5 verification + * operation (RSASSA-PKCS1-v1_5-VERIFY). + * + * \param ctx The initialized RSA public key context to use. + * \param md_alg The message-digest algorithm used to hash the original data. + * Use #MBEDTLS_MD_NONE for signing raw data. + * \param hashlen The length of the message digest or raw data in Bytes. + * If \p md_alg is not #MBEDTLS_MD_NONE, this must match the + * output length of the corresponding hash algorithm. + * \param hash The buffer holding the message digest or raw data. + * This must be a readable buffer of at least \p hashlen Bytes. + * \param sig The buffer holding the signature. This must be a readable + * buffer of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * + * \return \c 0 if the verify operation was successful. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_rsassa_pkcs1_v15_verify(mbedtls_rsa_context *ctx, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig); + +/** + * \brief This function performs a PKCS#1 v2.1 PSS verification + * operation (RSASSA-PSS-VERIFY). + * + * \note The \c hash_id set in \p ctx by calling + * mbedtls_rsa_set_padding() selects the hash used for the + * encoding operation and for the mask generation function + * (MGF1). For more details on the encoding operation and the + * mask generation function, consult <em>RFC-3447: Public-Key + * Cryptography Standards (PKCS) #1 v2.1: RSA Cryptography + * Specifications</em>. If the \c hash_id set in \p ctx by + * mbedtls_rsa_set_padding() is #MBEDTLS_MD_NONE, the \p md_alg + * parameter is used. + * + * \param ctx The initialized RSA public key context to use. + * \param md_alg The message-digest algorithm used to hash the original data. + * Use #MBEDTLS_MD_NONE for signing raw data. + * \param hashlen The length of the message digest or raw data in Bytes. + * If \p md_alg is not #MBEDTLS_MD_NONE, this must match the + * output length of the corresponding hash algorithm. + * \param hash The buffer holding the message digest or raw data. + * This must be a readable buffer of at least \p hashlen Bytes. + * \param sig The buffer holding the signature. This must be a readable + * buffer of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * + * \return \c 0 if the verify operation was successful. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_rsassa_pss_verify(mbedtls_rsa_context *ctx, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + const unsigned char *sig); + +/** + * \brief This function performs a PKCS#1 v2.1 PSS verification + * operation (RSASSA-PSS-VERIFY). + * + * \note The \p sig buffer must be as large as the size + * of \p ctx->N. For example, 128 Bytes if RSA-1024 is used. + * + * \note The \c hash_id set in \p ctx by mbedtls_rsa_set_padding() is + * ignored. + * + * \param ctx The initialized RSA public key context to use. + * \param md_alg The message-digest algorithm used to hash the original data. + * Use #MBEDTLS_MD_NONE for signing raw data. + * \param hashlen The length of the message digest or raw data in Bytes. + * If \p md_alg is not #MBEDTLS_MD_NONE, this must match the + * output length of the corresponding hash algorithm. + * \param hash The buffer holding the message digest or raw data. + * This must be a readable buffer of at least \p hashlen Bytes. + * \param mgf1_hash_id The message digest algorithm used for the + * verification operation and the mask generation + * function (MGF1). For more details on the encoding + * operation and the mask generation function, consult + * <em>RFC-3447: Public-Key Cryptography Standards + * (PKCS) #1 v2.1: RSA Cryptography + * Specifications</em>. + * \param expected_salt_len The length of the salt used in padding. Use + * #MBEDTLS_RSA_SALT_LEN_ANY to accept any salt length. + * \param sig The buffer holding the signature. This must be a readable + * buffer of length \c ctx->len Bytes. For example, \c 256 Bytes + * for an 2048-bit RSA modulus. + * + * \return \c 0 if the verify operation was successful. + * \return An \c MBEDTLS_ERR_RSA_XXX error code on failure. + */ +int mbedtls_rsa_rsassa_pss_verify_ext(mbedtls_rsa_context *ctx, + mbedtls_md_type_t md_alg, + unsigned int hashlen, + const unsigned char *hash, + mbedtls_md_type_t mgf1_hash_id, + int expected_salt_len, + const unsigned char *sig); + +/** + * \brief This function copies the components of an RSA context. + * + * \param dst The destination context. This must be initialized. + * \param src The source context. This must be initialized. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_MPI_ALLOC_FAILED on memory allocation failure. + */ +int mbedtls_rsa_copy(mbedtls_rsa_context *dst, const mbedtls_rsa_context *src); + +/** + * \brief This function frees the components of an RSA key. + * + * \param ctx The RSA context to free. May be \c NULL, in which case + * this function is a no-op. If it is not \c NULL, it must + * point to an initialized RSA context. + */ +void mbedtls_rsa_free(mbedtls_rsa_context *ctx); + +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief The RSA checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_rsa_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* rsa.h */ diff --git a/include/mbedtls/sha1.h b/include/mbedtls/sha1.h new file mode 100644 index 0000000..592ffd1 --- /dev/null +++ b/include/mbedtls/sha1.h @@ -0,0 +1,219 @@ +/** + * \file sha1.h + * + * \brief This file contains SHA-1 definitions and functions. + * + * The Secure Hash Algorithm 1 (SHA-1) cryptographic hash function is defined in + * <em>FIPS 180-4: Secure Hash Standard (SHS)</em>. + * + * \warning SHA-1 is considered a weak message digest and its use constitutes + * a security risk. We recommend considering stronger message + * digests instead. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_SHA1_H +#define MBEDTLS_SHA1_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stddef.h> +#include <stdint.h> + +/** SHA-1 input data was malformed. */ +#define MBEDTLS_ERR_SHA1_BAD_INPUT_DATA -0x0073 + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_SHA1_ALT) +// Regular implementation +// + +/** + * \brief The SHA-1 context structure. + * + * \warning SHA-1 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +typedef struct mbedtls_sha1_context { + uint32_t MBEDTLS_PRIVATE(total)[2]; /*!< The number of Bytes processed. */ + uint32_t MBEDTLS_PRIVATE(state)[5]; /*!< The intermediate digest state. */ + unsigned char MBEDTLS_PRIVATE(buffer)[64]; /*!< The data block being processed. */ +} +mbedtls_sha1_context; + +#else /* MBEDTLS_SHA1_ALT */ +#include "sha1_alt.h" +#endif /* MBEDTLS_SHA1_ALT */ + +/** + * \brief This function initializes a SHA-1 context. + * + * \warning SHA-1 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + * \param ctx The SHA-1 context to initialize. + * This must not be \c NULL. + * + */ +void mbedtls_sha1_init(mbedtls_sha1_context *ctx); + +/** + * \brief This function clears a SHA-1 context. + * + * \warning SHA-1 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + * \param ctx The SHA-1 context to clear. This may be \c NULL, + * in which case this function does nothing. If it is + * not \c NULL, it must point to an initialized + * SHA-1 context. + * + */ +void mbedtls_sha1_free(mbedtls_sha1_context *ctx); + +/** + * \brief This function clones the state of a SHA-1 context. + * + * \warning SHA-1 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + * \param dst The SHA-1 context to clone to. This must be initialized. + * \param src The SHA-1 context to clone from. This must be initialized. + * + */ +void mbedtls_sha1_clone(mbedtls_sha1_context *dst, + const mbedtls_sha1_context *src); + +/** + * \brief This function starts a SHA-1 checksum calculation. + * + * \warning SHA-1 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + * \param ctx The SHA-1 context to initialize. This must be initialized. + * + * \return \c 0 on success. + * \return A negative error code on failure. + * + */ +int mbedtls_sha1_starts(mbedtls_sha1_context *ctx); + +/** + * \brief This function feeds an input buffer into an ongoing SHA-1 + * checksum calculation. + * + * \warning SHA-1 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + * \param ctx The SHA-1 context. This must be initialized + * and have a hash operation started. + * \param input The buffer holding the input data. + * This must be a readable buffer of length \p ilen Bytes. + * \param ilen The length of the input data \p input in Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha1_update(mbedtls_sha1_context *ctx, + const unsigned char *input, + size_t ilen); + +/** + * \brief This function finishes the SHA-1 operation, and writes + * the result to the output buffer. + * + * \warning SHA-1 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + * \param ctx The SHA-1 context to use. This must be initialized and + * have a hash operation started. + * \param output The SHA-1 checksum result. This must be a writable + * buffer of length \c 20 Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha1_finish(mbedtls_sha1_context *ctx, + unsigned char output[20]); + +/** + * \brief SHA-1 process data block (internal use only). + * + * \warning SHA-1 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + * \param ctx The SHA-1 context to use. This must be initialized. + * \param data The data block being processed. This must be a + * readable buffer of length \c 64 Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + * + */ +int mbedtls_internal_sha1_process(mbedtls_sha1_context *ctx, + const unsigned char data[64]); + +/** + * \brief This function calculates the SHA-1 checksum of a buffer. + * + * The function allocates the context, performs the + * calculation, and frees the context. + * + * The SHA-1 result is calculated as + * output = SHA-1(input buffer). + * + * \warning SHA-1 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + * \param input The buffer holding the input data. + * This must be a readable buffer of length \p ilen Bytes. + * \param ilen The length of the input data \p input in Bytes. + * \param output The SHA-1 checksum result. + * This must be a writable buffer of length \c 20 Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + * + */ +int mbedtls_sha1(const unsigned char *input, + size_t ilen, + unsigned char output[20]); + +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief The SHA-1 checkup routine. + * + * \warning SHA-1 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + * \return \c 0 on success. + * \return \c 1 on failure. + * + */ +int mbedtls_sha1_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_sha1.h */ diff --git a/include/mbedtls/sha256.h b/include/mbedtls/sha256.h new file mode 100644 index 0000000..4ee780f --- /dev/null +++ b/include/mbedtls/sha256.h @@ -0,0 +1,198 @@ +/** + * \file sha256.h + * + * \brief This file contains SHA-224 and SHA-256 definitions and functions. + * + * The Secure Hash Algorithms 224 and 256 (SHA-224 and SHA-256) cryptographic + * hash functions are defined in <em>FIPS 180-4: Secure Hash Standard (SHS)</em>. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_SHA256_H +#define MBEDTLS_SHA256_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stddef.h> +#include <stdint.h> + +/** SHA-256 input data was malformed. */ +#define MBEDTLS_ERR_SHA256_BAD_INPUT_DATA -0x0074 + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_SHA256_ALT) +// Regular implementation +// + +/** + * \brief The SHA-256 context structure. + * + * The structure is used both for SHA-256 and for SHA-224 + * checksum calculations. The choice between these two is + * made in the call to mbedtls_sha256_starts(). + */ +typedef struct mbedtls_sha256_context { + unsigned char MBEDTLS_PRIVATE(buffer)[64]; /*!< The data block being processed. */ + uint32_t MBEDTLS_PRIVATE(total)[2]; /*!< The number of Bytes processed. */ + uint32_t MBEDTLS_PRIVATE(state)[8]; /*!< The intermediate digest state. */ + int MBEDTLS_PRIVATE(is224); /*!< Determines which function to use: + 0: Use SHA-256, or 1: Use SHA-224. */ +} +mbedtls_sha256_context; + +#else /* MBEDTLS_SHA256_ALT */ +#include "sha256_alt.h" +#endif /* MBEDTLS_SHA256_ALT */ + +/** + * \brief This function initializes a SHA-256 context. + * + * \param ctx The SHA-256 context to initialize. This must not be \c NULL. + */ +void mbedtls_sha256_init(mbedtls_sha256_context *ctx); + +/** + * \brief This function clears a SHA-256 context. + * + * \param ctx The SHA-256 context to clear. This may be \c NULL, in which + * case this function returns immediately. If it is not \c NULL, + * it must point to an initialized SHA-256 context. + */ +void mbedtls_sha256_free(mbedtls_sha256_context *ctx); + +/** + * \brief This function clones the state of a SHA-256 context. + * + * \param dst The destination context. This must be initialized. + * \param src The context to clone. This must be initialized. + */ +void mbedtls_sha256_clone(mbedtls_sha256_context *dst, + const mbedtls_sha256_context *src); + +/** + * \brief This function starts a SHA-224 or SHA-256 checksum + * calculation. + * + * \param ctx The context to use. This must be initialized. + * \param is224 This determines which function to use. This must be + * either \c 0 for SHA-256, or \c 1 for SHA-224. + * + * \note is224 must be defined accordingly to the enabled + * MBEDTLS_SHA224_C/MBEDTLS_SHA256_C symbols otherwise the + * function will return #MBEDTLS_ERR_SHA512_BAD_INPUT_DATA. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha256_starts(mbedtls_sha256_context *ctx, int is224); + +/** + * \brief This function feeds an input buffer into an ongoing + * SHA-256 checksum calculation. + * + * \param ctx The SHA-256 context. This must be initialized + * and have a hash operation started. + * \param input The buffer holding the data. This must be a readable + * buffer of length \p ilen Bytes. + * \param ilen The length of the input data in Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha256_update(mbedtls_sha256_context *ctx, + const unsigned char *input, + size_t ilen); + +/** + * \brief This function finishes the SHA-256 operation, and writes + * the result to the output buffer. + * + * \param ctx The SHA-256 context. This must be initialized + * and have a hash operation started. + * \param output The SHA-224 or SHA-256 checksum result. + * This must be a writable buffer of length \c 32 bytes + * for SHA-256, \c 28 bytes for SHA-224. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha256_finish(mbedtls_sha256_context *ctx, + unsigned char *output); + +/** + * \brief This function processes a single data block within + * the ongoing SHA-256 computation. This function is for + * internal use only. + * + * \param ctx The SHA-256 context. This must be initialized. + * \param data The buffer holding one block of data. This must + * be a readable buffer of length \c 64 Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_internal_sha256_process(mbedtls_sha256_context *ctx, + const unsigned char data[64]); + +/** + * \brief This function calculates the SHA-224 or SHA-256 + * checksum of a buffer. + * + * The function allocates the context, performs the + * calculation, and frees the context. + * + * The SHA-256 result is calculated as + * output = SHA-256(input buffer). + * + * \param input The buffer holding the data. This must be a readable + * buffer of length \p ilen Bytes. + * \param ilen The length of the input data in Bytes. + * \param output The SHA-224 or SHA-256 checksum result. + * This must be a writable buffer of length \c 32 bytes + * for SHA-256, \c 28 bytes for SHA-224. + * \param is224 Determines which function to use. This must be + * either \c 0 for SHA-256, or \c 1 for SHA-224. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha256(const unsigned char *input, + size_t ilen, + unsigned char *output, + int is224); + +#if defined(MBEDTLS_SELF_TEST) + +#if defined(MBEDTLS_SHA224_C) +/** + * \brief The SHA-224 checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_sha224_self_test(int verbose); +#endif /* MBEDTLS_SHA224_C */ + +#if defined(MBEDTLS_SHA256_C) +/** + * \brief The SHA-256 checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_sha256_self_test(int verbose); +#endif /* MBEDTLS_SHA256_C */ + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_sha256.h */ diff --git a/include/mbedtls/sha3.h b/include/mbedtls/sha3.h new file mode 100644 index 0000000..3eeee65 --- /dev/null +++ b/include/mbedtls/sha3.h @@ -0,0 +1,172 @@ +/** + * \file sha3.h + * + * \brief This file contains SHA-3 definitions and functions. + * + * The Secure Hash Algorithms cryptographic + * hash functions are defined in <em>FIPS 202: SHA-3 Standard: + * Permutation-Based Hash and Extendable-Output Functions </em>. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_SHA3_H +#define MBEDTLS_SHA3_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stddef.h> +#include <stdint.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/** SHA-3 input data was malformed. */ +#define MBEDTLS_ERR_SHA3_BAD_INPUT_DATA -0x0076 + +/** + * SHA-3 family id. + * + * It identifies the family (SHA3-256, SHA3-512, etc.) + */ + +typedef enum { + MBEDTLS_SHA3_NONE = 0, /*!< Operation not defined. */ + MBEDTLS_SHA3_224, /*!< SHA3-224 */ + MBEDTLS_SHA3_256, /*!< SHA3-256 */ + MBEDTLS_SHA3_384, /*!< SHA3-384 */ + MBEDTLS_SHA3_512, /*!< SHA3-512 */ +} mbedtls_sha3_id; + +/** + * \brief The SHA-3 context structure. + * + * The structure is used SHA-3 checksum calculations. + */ +typedef struct { + uint64_t MBEDTLS_PRIVATE(state[25]); + uint32_t MBEDTLS_PRIVATE(index); + uint16_t MBEDTLS_PRIVATE(olen); + uint16_t MBEDTLS_PRIVATE(max_block_size); +} +mbedtls_sha3_context; + +/** + * \brief This function initializes a SHA-3 context. + * + * \param ctx The SHA-3 context to initialize. This must not be \c NULL. + */ +void mbedtls_sha3_init(mbedtls_sha3_context *ctx); + +/** + * \brief This function clears a SHA-3 context. + * + * \param ctx The SHA-3 context to clear. This may be \c NULL, in which + * case this function returns immediately. If it is not \c NULL, + * it must point to an initialized SHA-3 context. + */ +void mbedtls_sha3_free(mbedtls_sha3_context *ctx); + +/** + * \brief This function clones the state of a SHA-3 context. + * + * \param dst The destination context. This must be initialized. + * \param src The context to clone. This must be initialized. + */ +void mbedtls_sha3_clone(mbedtls_sha3_context *dst, + const mbedtls_sha3_context *src); + +/** + * \brief This function starts a SHA-3 checksum + * calculation. + * + * \param ctx The context to use. This must be initialized. + * \param id The id of the SHA-3 family. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha3_starts(mbedtls_sha3_context *ctx, mbedtls_sha3_id id); + +/** + * \brief This function feeds an input buffer into an ongoing + * SHA-3 checksum calculation. + * + * \param ctx The SHA-3 context. This must be initialized + * and have a hash operation started. + * \param input The buffer holding the data. This must be a readable + * buffer of length \p ilen Bytes. + * \param ilen The length of the input data in Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha3_update(mbedtls_sha3_context *ctx, + const uint8_t *input, + size_t ilen); + +/** + * \brief This function finishes the SHA-3 operation, and writes + * the result to the output buffer. + * + * \param ctx The SHA-3 context. This must be initialized + * and have a hash operation started. + * \param output The SHA-3 checksum result. + * This must be a writable buffer of length \c olen bytes. + * \param olen Defines the length of output buffer (in bytes). For SHA-3 224, SHA-3 256, + * SHA-3 384 and SHA-3 512 \c olen must equal to 28, 32, 48 and 64, + * respectively. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha3_finish(mbedtls_sha3_context *ctx, + uint8_t *output, size_t olen); + +/** + * \brief This function calculates the SHA-3 + * checksum of a buffer. + * + * The function allocates the context, performs the + * calculation, and frees the context. + * + * The SHA-3 result is calculated as + * output = SHA-3(id, input buffer, d). + * + * \param id The id of the SHA-3 family. + * \param input The buffer holding the data. This must be a readable + * buffer of length \p ilen Bytes. + * \param ilen The length of the input data in Bytes. + * \param output The SHA-3 checksum result. + * This must be a writable buffer of length \c olen bytes. + * \param olen Defines the length of output buffer (in bytes). For SHA-3 224, SHA-3 256, + * SHA-3 384 and SHA-3 512 \c olen must equal to 28, 32, 48 and 64, + * respectively. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha3(mbedtls_sha3_id id, const uint8_t *input, + size_t ilen, + uint8_t *output, + size_t olen); + +#if defined(MBEDTLS_SELF_TEST) +/** + * \brief Checkup routine for the algorithms implemented + * by this module: SHA3-224, SHA3-256, SHA3-384, SHA3-512. + * + * \return 0 if successful, or 1 if the test failed. + */ +int mbedtls_sha3_self_test(int verbose); +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_sha3.h */ diff --git a/include/mbedtls/sha512.h b/include/mbedtls/sha512.h new file mode 100644 index 0000000..1c20e4c --- /dev/null +++ b/include/mbedtls/sha512.h @@ -0,0 +1,208 @@ +/** + * \file sha512.h + * \brief This file contains SHA-384 and SHA-512 definitions and functions. + * + * The Secure Hash Algorithms 384 and 512 (SHA-384 and SHA-512) cryptographic + * hash functions are defined in <em>FIPS 180-4: Secure Hash Standard (SHS)</em>. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_SHA512_H +#define MBEDTLS_SHA512_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stddef.h> +#include <stdint.h> + +/** SHA-512 input data was malformed. */ +#define MBEDTLS_ERR_SHA512_BAD_INPUT_DATA -0x0075 + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_SHA512_ALT) +// Regular implementation +// + +/** + * \brief The SHA-512 context structure. + * + * The structure is used both for SHA-384 and for SHA-512 + * checksum calculations. The choice between these two is + * made in the call to mbedtls_sha512_starts(). + */ +typedef struct mbedtls_sha512_context { + uint64_t MBEDTLS_PRIVATE(total)[2]; /*!< The number of Bytes processed. */ + uint64_t MBEDTLS_PRIVATE(state)[8]; /*!< The intermediate digest state. */ + unsigned char MBEDTLS_PRIVATE(buffer)[128]; /*!< The data block being processed. */ +#if defined(MBEDTLS_SHA384_C) + int MBEDTLS_PRIVATE(is384); /*!< Determines which function to use: + 0: Use SHA-512, or 1: Use SHA-384. */ +#endif +} +mbedtls_sha512_context; + +#else /* MBEDTLS_SHA512_ALT */ +#include "sha512_alt.h" +#endif /* MBEDTLS_SHA512_ALT */ + +/** + * \brief This function initializes a SHA-512 context. + * + * \param ctx The SHA-512 context to initialize. This must + * not be \c NULL. + */ +void mbedtls_sha512_init(mbedtls_sha512_context *ctx); + +/** + * \brief This function clears a SHA-512 context. + * + * \param ctx The SHA-512 context to clear. This may be \c NULL, + * in which case this function does nothing. If it + * is not \c NULL, it must point to an initialized + * SHA-512 context. + */ +void mbedtls_sha512_free(mbedtls_sha512_context *ctx); + +/** + * \brief This function clones the state of a SHA-512 context. + * + * \param dst The destination context. This must be initialized. + * \param src The context to clone. This must be initialized. + */ +void mbedtls_sha512_clone(mbedtls_sha512_context *dst, + const mbedtls_sha512_context *src); + +/** + * \brief This function starts a SHA-384 or SHA-512 checksum + * calculation. + * + * \param ctx The SHA-512 context to use. This must be initialized. + * \param is384 Determines which function to use. This must be + * either \c 0 for SHA-512, or \c 1 for SHA-384. + * + * \note is384 must be defined accordingly to the enabled + * MBEDTLS_SHA384_C/MBEDTLS_SHA512_C symbols otherwise the + * function will return #MBEDTLS_ERR_SHA512_BAD_INPUT_DATA. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha512_starts(mbedtls_sha512_context *ctx, int is384); + +/** + * \brief This function feeds an input buffer into an ongoing + * SHA-512 checksum calculation. + * + * \param ctx The SHA-512 context. This must be initialized + * and have a hash operation started. + * \param input The buffer holding the input data. This must + * be a readable buffer of length \p ilen Bytes. + * \param ilen The length of the input data in Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha512_update(mbedtls_sha512_context *ctx, + const unsigned char *input, + size_t ilen); + +/** + * \brief This function finishes the SHA-512 operation, and writes + * the result to the output buffer. + * + * \param ctx The SHA-512 context. This must be initialized + * and have a hash operation started. + * \param output The SHA-384 or SHA-512 checksum result. + * This must be a writable buffer of length \c 64 bytes + * for SHA-512, \c 48 bytes for SHA-384. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha512_finish(mbedtls_sha512_context *ctx, + unsigned char *output); + +/** + * \brief This function processes a single data block within + * the ongoing SHA-512 computation. + * This function is for internal use only. + * + * \param ctx The SHA-512 context. This must be initialized. + * \param data The buffer holding one block of data. This + * must be a readable buffer of length \c 128 Bytes. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_internal_sha512_process(mbedtls_sha512_context *ctx, + const unsigned char data[128]); + +/** + * \brief This function calculates the SHA-512 or SHA-384 + * checksum of a buffer. + * + * The function allocates the context, performs the + * calculation, and frees the context. + * + * The SHA-512 result is calculated as + * output = SHA-512(input buffer). + * + * \param input The buffer holding the input data. This must be + * a readable buffer of length \p ilen Bytes. + * \param ilen The length of the input data in Bytes. + * \param output The SHA-384 or SHA-512 checksum result. + * This must be a writable buffer of length \c 64 bytes + * for SHA-512, \c 48 bytes for SHA-384. + * \param is384 Determines which function to use. This must be either + * \c 0 for SHA-512, or \c 1 for SHA-384. + * + * \note is384 must be defined accordingly with the supported + * symbols in the config file. If: + * - is384 is 0, but \c MBEDTLS_SHA384_C is not defined, or + * - is384 is 1, but \c MBEDTLS_SHA512_C is not defined + * then the function will return + * #MBEDTLS_ERR_SHA512_BAD_INPUT_DATA. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_sha512(const unsigned char *input, + size_t ilen, + unsigned char *output, + int is384); + +#if defined(MBEDTLS_SELF_TEST) + +#if defined(MBEDTLS_SHA384_C) +/** + * \brief The SHA-384 checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_sha384_self_test(int verbose); +#endif /* MBEDTLS_SHA384_C */ + +#if defined(MBEDTLS_SHA512_C) +/** + * \brief The SHA-512 checkup routine. + * + * \return \c 0 on success. + * \return \c 1 on failure. + */ +int mbedtls_sha512_self_test(int verbose); +#endif /* MBEDTLS_SHA512_C */ + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_sha512.h */ diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h new file mode 100644 index 0000000..89f7b81 --- /dev/null +++ b/include/mbedtls/ssl.h @@ -0,0 +1,5369 @@ +/** + * \file ssl.h + * + * \brief SSL/TLS functions. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_SSL_H +#define MBEDTLS_SSL_H +#include "mbedtls/platform_util.h" +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/bignum.h" +#include "mbedtls/ecp.h" + +#include "mbedtls/ssl_ciphersuites.h" + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +#include "mbedtls/x509_crt.h" +#include "mbedtls/x509_crl.h" +#endif + +#if defined(MBEDTLS_DHM_C) +#include "mbedtls/dhm.h" +#endif + +#include "mbedtls/md.h" + +#if defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDH_OR_ECDHE_ANY_ENABLED) +#include "mbedtls/ecdh.h" +#endif + +#if defined(MBEDTLS_HAVE_TIME) +#include "mbedtls/platform_time.h" +#endif + +#include "psa/crypto.h" + +/* + * SSL Error codes + */ +/** A cryptographic operation is in progress. Try again later. */ +#define MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS -0x7000 +/** The requested feature is not available. */ +#define MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE -0x7080 +/** Bad input parameters to function. */ +#define MBEDTLS_ERR_SSL_BAD_INPUT_DATA -0x7100 +/** Verification of the message MAC failed. */ +#define MBEDTLS_ERR_SSL_INVALID_MAC -0x7180 +/** An invalid SSL record was received. */ +#define MBEDTLS_ERR_SSL_INVALID_RECORD -0x7200 +/** The connection indicated an EOF. */ +#define MBEDTLS_ERR_SSL_CONN_EOF -0x7280 +/** A message could not be parsed due to a syntactic error. */ +#define MBEDTLS_ERR_SSL_DECODE_ERROR -0x7300 +/* Error space gap */ +/** No RNG was provided to the SSL module. */ +#define MBEDTLS_ERR_SSL_NO_RNG -0x7400 +/** No client certification received from the client, but required by the authentication mode. */ +#define MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE -0x7480 +/** Client received an extended server hello containing an unsupported extension */ +#define MBEDTLS_ERR_SSL_UNSUPPORTED_EXTENSION -0x7500 +/** No ALPN protocols supported that the client advertises */ +#define MBEDTLS_ERR_SSL_NO_APPLICATION_PROTOCOL -0x7580 +/** The own private key or pre-shared key is not set, but needed. */ +#define MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED -0x7600 +/** No CA Chain is set, but required to operate. */ +#define MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED -0x7680 +/** An unexpected message was received from our peer. */ +#define MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE -0x7700 +/** A fatal alert message was received from our peer. */ +#define MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE -0x7780 +/** No server could be identified matching the client's SNI. */ +#define MBEDTLS_ERR_SSL_UNRECOGNIZED_NAME -0x7800 +/** The peer notified us that the connection is going to be closed. */ +#define MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY -0x7880 +/* Error space gap */ +/* Error space gap */ +/** Processing of the Certificate handshake message failed. */ +#define MBEDTLS_ERR_SSL_BAD_CERTIFICATE -0x7A00 +/* Error space gap */ +/** + * Received NewSessionTicket Post Handshake Message. + * This error code is experimental and may be changed or removed without notice. + */ +#define MBEDTLS_ERR_SSL_RECEIVED_NEW_SESSION_TICKET -0x7B00 +/** Not possible to read early data */ +#define MBEDTLS_ERR_SSL_CANNOT_READ_EARLY_DATA -0x7B80 +/** Not possible to write early data */ +#define MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA -0x7C00 +/* Error space gap */ +/* Error space gap */ +/* Error space gap */ +/* Error space gap */ +/** Cache entry not found */ +#define MBEDTLS_ERR_SSL_CACHE_ENTRY_NOT_FOUND -0x7E80 +/** Memory allocation failed */ +#define MBEDTLS_ERR_SSL_ALLOC_FAILED -0x7F00 +/** Hardware acceleration function returned with error */ +#define MBEDTLS_ERR_SSL_HW_ACCEL_FAILED -0x7F80 +/** Hardware acceleration function skipped / left alone data */ +#define MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH -0x6F80 +/** Handshake protocol not within min/max boundaries */ +#define MBEDTLS_ERR_SSL_BAD_PROTOCOL_VERSION -0x6E80 +/** The handshake negotiation failed. */ +#define MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE -0x6E00 +/** Session ticket has expired. */ +#define MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED -0x6D80 +/** Public key type mismatch (eg, asked for RSA key exchange and presented EC key) */ +#define MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH -0x6D00 +/** Unknown identity received (eg, PSK identity) */ +#define MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY -0x6C80 +/** Internal error (eg, unexpected failure in lower-level module) */ +#define MBEDTLS_ERR_SSL_INTERNAL_ERROR -0x6C00 +/** A counter would wrap (eg, too many messages exchanged). */ +#define MBEDTLS_ERR_SSL_COUNTER_WRAPPING -0x6B80 +/** Unexpected message at ServerHello in renegotiation. */ +#define MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO -0x6B00 +/** DTLS client must retry for hello verification */ +#define MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED -0x6A80 +/** A buffer is too small to receive or write a message */ +#define MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL -0x6A00 +/* Error space gap */ +/** No data of requested type currently available on underlying transport. */ +#define MBEDTLS_ERR_SSL_WANT_READ -0x6900 +/** Connection requires a write call. */ +#define MBEDTLS_ERR_SSL_WANT_WRITE -0x6880 +/** The operation timed out. */ +#define MBEDTLS_ERR_SSL_TIMEOUT -0x6800 +/** The client initiated a reconnect from the same port. */ +#define MBEDTLS_ERR_SSL_CLIENT_RECONNECT -0x6780 +/** Record header looks valid but is not expected. */ +#define MBEDTLS_ERR_SSL_UNEXPECTED_RECORD -0x6700 +/** The alert message received indicates a non-fatal error. */ +#define MBEDTLS_ERR_SSL_NON_FATAL -0x6680 +/** A field in a message was incorrect or inconsistent with other fields. */ +#define MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER -0x6600 +/** Internal-only message signaling that further message-processing should be done */ +#define MBEDTLS_ERR_SSL_CONTINUE_PROCESSING -0x6580 +/** The asynchronous operation is not completed yet. */ +#define MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS -0x6500 +/** Internal-only message signaling that a message arrived early. */ +#define MBEDTLS_ERR_SSL_EARLY_MESSAGE -0x6480 +/* Error space gap */ +/* Error space gap */ +/* Error space gap */ +/* Error space gap */ +/* Error space gap */ +/* Error space gap */ +/* Error space gap */ +/* Error space gap */ +/** An encrypted DTLS-frame with an unexpected CID was received. */ +#define MBEDTLS_ERR_SSL_UNEXPECTED_CID -0x6000 +/** An operation failed due to an unexpected version or configuration. */ +#define MBEDTLS_ERR_SSL_VERSION_MISMATCH -0x5F00 +/** Invalid value in SSL config */ +#define MBEDTLS_ERR_SSL_BAD_CONFIG -0x5E80 + +/* + * Constants from RFC 8446 for TLS 1.3 PSK modes + * + * Those are used in the Pre-Shared Key Exchange Modes extension. + * See Section 4.2.9 in RFC 8446. + */ +#define MBEDTLS_SSL_TLS1_3_PSK_MODE_PURE 0 /* Pure PSK-based exchange */ +#define MBEDTLS_SSL_TLS1_3_PSK_MODE_ECDHE 1 /* PSK+ECDHE-based exchange */ + +/* + * TLS 1.3 NamedGroup values + * + * From RF 8446 + * enum { + * // Elliptic Curve Groups (ECDHE) + * secp256r1(0x0017), secp384r1(0x0018), secp521r1(0x0019), + * x25519(0x001D), x448(0x001E), + * // Finite Field Groups (DHE) + * ffdhe2048(0x0100), ffdhe3072(0x0101), ffdhe4096(0x0102), + * ffdhe6144(0x0103), ffdhe8192(0x0104), + * // Reserved Code Points + * ffdhe_private_use(0x01FC..0x01FF), + * ecdhe_private_use(0xFE00..0xFEFF), + * (0xFFFF) + * } NamedGroup; + * + */ + +/* Elliptic Curve Groups (ECDHE) */ +#define MBEDTLS_SSL_IANA_TLS_GROUP_NONE 0 +#define MBEDTLS_SSL_IANA_TLS_GROUP_SECP192K1 0x0012 +#define MBEDTLS_SSL_IANA_TLS_GROUP_SECP192R1 0x0013 +#define MBEDTLS_SSL_IANA_TLS_GROUP_SECP224K1 0x0014 +#define MBEDTLS_SSL_IANA_TLS_GROUP_SECP224R1 0x0015 +#define MBEDTLS_SSL_IANA_TLS_GROUP_SECP256K1 0x0016 +#define MBEDTLS_SSL_IANA_TLS_GROUP_SECP256R1 0x0017 +#define MBEDTLS_SSL_IANA_TLS_GROUP_SECP384R1 0x0018 +#define MBEDTLS_SSL_IANA_TLS_GROUP_SECP521R1 0x0019 +#define MBEDTLS_SSL_IANA_TLS_GROUP_BP256R1 0x001A +#define MBEDTLS_SSL_IANA_TLS_GROUP_BP384R1 0x001B +#define MBEDTLS_SSL_IANA_TLS_GROUP_BP512R1 0x001C +#define MBEDTLS_SSL_IANA_TLS_GROUP_X25519 0x001D +#define MBEDTLS_SSL_IANA_TLS_GROUP_X448 0x001E +/* Finite Field Groups (DHE) */ +#define MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE2048 0x0100 +#define MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE3072 0x0101 +#define MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE4096 0x0102 +#define MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE6144 0x0103 +#define MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE8192 0x0104 + +/* + * TLS 1.3 Key Exchange Modes + * + * Mbed TLS internal identifiers for use with the SSL configuration API + * mbedtls_ssl_conf_tls13_key_exchange_modes(). + */ + +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK (1u << 0) /*!< Pure-PSK TLS 1.3 key exchange, + * encompassing both externally agreed PSKs + * as well as resumption PSKs. */ +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL (1u << 1) /*!< Pure-Ephemeral TLS 1.3 key exchanges, + * including for example ECDHE and DHE + * key exchanges. */ +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL (1u << 2) /*!< PSK-Ephemeral TLS 1.3 key exchanges, + * using both a PSK and an ephemeral + * key exchange. */ + +/* Convenience macros for sets of key exchanges. */ +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_ALL \ + (MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK | \ + MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL | \ + MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL) /*!< All TLS 1.3 key exchanges */ +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ALL \ + (MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK | \ + MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL) /*!< All PSK-based TLS 1.3 key exchanges */ +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ALL \ + (MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL | \ + MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL) /*!< All ephemeral TLS 1.3 key exchanges */ + +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_NONE (0) + +/* + * Various constants + */ + +#if !defined(MBEDTLS_DEPRECATED_REMOVED) +/* These are the high and low bytes of ProtocolVersion as defined by: + * - RFC 5246: ProtocolVersion version = { 3, 3 }; // TLS v1.2 + * - RFC 8446: see section 4.2.1 + */ +#define MBEDTLS_SSL_MAJOR_VERSION_3 3 +#define MBEDTLS_SSL_MINOR_VERSION_3 3 /*!< TLS v1.2 */ +#define MBEDTLS_SSL_MINOR_VERSION_4 4 /*!< TLS v1.3 */ +#endif /* MBEDTLS_DEPRECATED_REMOVED */ + +#define MBEDTLS_SSL_TRANSPORT_STREAM 0 /*!< TLS */ +#define MBEDTLS_SSL_TRANSPORT_DATAGRAM 1 /*!< DTLS */ + +#define MBEDTLS_SSL_MAX_HOST_NAME_LEN 255 /*!< Maximum host name defined in RFC 1035 */ +#define MBEDTLS_SSL_MAX_ALPN_NAME_LEN 255 /*!< Maximum size in bytes of a protocol name in alpn ext., RFC 7301 */ + +#define MBEDTLS_SSL_MAX_ALPN_LIST_LEN 65535 /*!< Maximum size in bytes of list in alpn ext., RFC 7301 */ + +/* RFC 6066 section 4, see also mfl_code_to_length in ssl_tls.c + * NONE must be zero so that memset()ing structure to zero works */ +#define MBEDTLS_SSL_MAX_FRAG_LEN_NONE 0 /*!< don't use this extension */ +#define MBEDTLS_SSL_MAX_FRAG_LEN_512 1 /*!< MaxFragmentLength 2^9 */ +#define MBEDTLS_SSL_MAX_FRAG_LEN_1024 2 /*!< MaxFragmentLength 2^10 */ +#define MBEDTLS_SSL_MAX_FRAG_LEN_2048 3 /*!< MaxFragmentLength 2^11 */ +#define MBEDTLS_SSL_MAX_FRAG_LEN_4096 4 /*!< MaxFragmentLength 2^12 */ +#define MBEDTLS_SSL_MAX_FRAG_LEN_INVALID 5 /*!< first invalid value */ + +#define MBEDTLS_SSL_IS_CLIENT 0 +#define MBEDTLS_SSL_IS_SERVER 1 + +#define MBEDTLS_SSL_EXTENDED_MS_DISABLED 0 +#define MBEDTLS_SSL_EXTENDED_MS_ENABLED 1 + +#define MBEDTLS_SSL_CID_DISABLED 0 +#define MBEDTLS_SSL_CID_ENABLED 1 + +#define MBEDTLS_SSL_ETM_DISABLED 0 +#define MBEDTLS_SSL_ETM_ENABLED 1 + +#define MBEDTLS_SSL_COMPRESS_NULL 0 + +#define MBEDTLS_SSL_VERIFY_NONE 0 +#define MBEDTLS_SSL_VERIFY_OPTIONAL 1 +#define MBEDTLS_SSL_VERIFY_REQUIRED 2 +#define MBEDTLS_SSL_VERIFY_UNSET 3 /* Used only for sni_authmode */ + +#define MBEDTLS_SSL_LEGACY_RENEGOTIATION 0 +#define MBEDTLS_SSL_SECURE_RENEGOTIATION 1 + +#define MBEDTLS_SSL_RENEGOTIATION_DISABLED 0 +#define MBEDTLS_SSL_RENEGOTIATION_ENABLED 1 + +#define MBEDTLS_SSL_ANTI_REPLAY_DISABLED 0 +#define MBEDTLS_SSL_ANTI_REPLAY_ENABLED 1 + +#define MBEDTLS_SSL_RENEGOTIATION_NOT_ENFORCED -1 +#define MBEDTLS_SSL_RENEGO_MAX_RECORDS_DEFAULT 16 + +#define MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION 0 +#define MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION 1 +#define MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE 2 + +#define MBEDTLS_SSL_TRUNC_HMAC_DISABLED 0 +#define MBEDTLS_SSL_TRUNC_HMAC_ENABLED 1 +#define MBEDTLS_SSL_TRUNCATED_HMAC_LEN 10 /* 80 bits, rfc 6066 section 7 */ + +#define MBEDTLS_SSL_SESSION_TICKETS_DISABLED 0 +#define MBEDTLS_SSL_SESSION_TICKETS_ENABLED 1 + +#define MBEDTLS_SSL_PRESET_DEFAULT 0 +#define MBEDTLS_SSL_PRESET_SUITEB 2 + +#define MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED 1 +#define MBEDTLS_SSL_CERT_REQ_CA_LIST_DISABLED 0 + +#define MBEDTLS_SSL_EARLY_DATA_DISABLED 0 +#define MBEDTLS_SSL_EARLY_DATA_ENABLED 1 + +#define MBEDTLS_SSL_DTLS_SRTP_MKI_UNSUPPORTED 0 +#define MBEDTLS_SSL_DTLS_SRTP_MKI_SUPPORTED 1 + +#define MBEDTLS_SSL_SRV_CIPHERSUITE_ORDER_CLIENT 1 +#define MBEDTLS_SSL_SRV_CIPHERSUITE_ORDER_SERVER 0 + +#if defined(MBEDTLS_SSL_PROTO_TLS1_3) && defined(MBEDTLS_SSL_SESSION_TICKETS) +#if defined(PSA_WANT_ALG_SHA_384) +#define MBEDTLS_SSL_TLS1_3_TICKET_RESUMPTION_KEY_LEN 48 +#elif defined(PSA_WANT_ALG_SHA_256) +#define MBEDTLS_SSL_TLS1_3_TICKET_RESUMPTION_KEY_LEN 32 +#endif +#endif /* MBEDTLS_SSL_PROTO_TLS1_3 && MBEDTLS_SSL_SESSION_TICKETS */ +/* + * Default range for DTLS retransmission timer value, in milliseconds. + * RFC 6347 4.2.4.1 says from 1 second to 60 seconds. + */ +#define MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MIN 1000 +#define MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MAX 60000 + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in mbedtls_config.h or define them on the compiler command line. + * \{ + */ + +/* + * Maximum fragment length in bytes, + * determines the size of each of the two internal I/O buffers. + * + * Note: the RFC defines the default size of SSL / TLS messages. If you + * change the value here, other clients / servers may not be able to + * communicate with you anymore. Only change this value if you control + * both sides of the connection and have it reduced at both sides, or + * if you're using the Max Fragment Length extension and you know all your + * peers are using it too! + */ +#if !defined(MBEDTLS_SSL_IN_CONTENT_LEN) +#define MBEDTLS_SSL_IN_CONTENT_LEN 16384 +#endif + +#if !defined(MBEDTLS_SSL_OUT_CONTENT_LEN) +#define MBEDTLS_SSL_OUT_CONTENT_LEN 16384 +#endif + +/* + * Maximum number of heap-allocated bytes for the purpose of + * DTLS handshake message reassembly and future message buffering. + */ +#if !defined(MBEDTLS_SSL_DTLS_MAX_BUFFERING) +#define MBEDTLS_SSL_DTLS_MAX_BUFFERING 32768 +#endif + +/* + * Maximum length of CIDs for incoming and outgoing messages. + */ +#if !defined(MBEDTLS_SSL_CID_IN_LEN_MAX) +#define MBEDTLS_SSL_CID_IN_LEN_MAX 32 +#endif + +#if !defined(MBEDTLS_SSL_CID_OUT_LEN_MAX) +#define MBEDTLS_SSL_CID_OUT_LEN_MAX 32 +#endif + +#if !defined(MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY) +#define MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY 16 +#endif + +#if !defined(MBEDTLS_SSL_MAX_EARLY_DATA_SIZE) +#define MBEDTLS_SSL_MAX_EARLY_DATA_SIZE 1024 +#endif + +#if !defined(MBEDTLS_SSL_TLS1_3_TICKET_AGE_TOLERANCE) +#define MBEDTLS_SSL_TLS1_3_TICKET_AGE_TOLERANCE 6000 +#endif + +#if !defined(MBEDTLS_SSL_TLS1_3_TICKET_NONCE_LENGTH) +#define MBEDTLS_SSL_TLS1_3_TICKET_NONCE_LENGTH 32 +#endif + +#if !defined(MBEDTLS_SSL_TLS1_3_DEFAULT_NEW_SESSION_TICKETS) +#define MBEDTLS_SSL_TLS1_3_DEFAULT_NEW_SESSION_TICKETS 1 +#endif + +/** \} name SECTION: Module settings */ + +/* + * Default to standard CID mode + */ +#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) && \ + !defined(MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT) +#define MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT 0 +#endif + +/* + * Length of the verify data for secure renegotiation + */ +#define MBEDTLS_SSL_VERIFY_DATA_MAX_LEN 12 + +/* + * Signaling ciphersuite values (SCSV) + */ +#define MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO 0xFF /**< renegotiation info ext */ + +/* + * Supported Signature and Hash algorithms (For TLS 1.2) + * RFC 5246 section 7.4.1.4.1 + */ +#define MBEDTLS_SSL_HASH_NONE 0 +#define MBEDTLS_SSL_HASH_MD5 1 +#define MBEDTLS_SSL_HASH_SHA1 2 +#define MBEDTLS_SSL_HASH_SHA224 3 +#define MBEDTLS_SSL_HASH_SHA256 4 +#define MBEDTLS_SSL_HASH_SHA384 5 +#define MBEDTLS_SSL_HASH_SHA512 6 + +#define MBEDTLS_SSL_SIG_ANON 0 +#define MBEDTLS_SSL_SIG_RSA 1 +#define MBEDTLS_SSL_SIG_ECDSA 3 + +/* + * TLS 1.3 signature algorithms + * RFC 8446, Section 4.2.2 + */ + +/* RSASSA-PKCS1-v1_5 algorithms */ +#define MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA256 0x0401 +#define MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA384 0x0501 +#define MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA512 0x0601 + +/* ECDSA algorithms */ +#define MBEDTLS_TLS1_3_SIG_ECDSA_SECP256R1_SHA256 0x0403 +#define MBEDTLS_TLS1_3_SIG_ECDSA_SECP384R1_SHA384 0x0503 +#define MBEDTLS_TLS1_3_SIG_ECDSA_SECP521R1_SHA512 0x0603 + +/* RSASSA-PSS algorithms with public key OID rsaEncryption */ +#define MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA256 0x0804 +#define MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA384 0x0805 +#define MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA512 0x0806 + +/* EdDSA algorithms */ +#define MBEDTLS_TLS1_3_SIG_ED25519 0x0807 +#define MBEDTLS_TLS1_3_SIG_ED448 0x0808 + +/* RSASSA-PSS algorithms with public key OID RSASSA-PSS */ +#define MBEDTLS_TLS1_3_SIG_RSA_PSS_PSS_SHA256 0x0809 +#define MBEDTLS_TLS1_3_SIG_RSA_PSS_PSS_SHA384 0x080A +#define MBEDTLS_TLS1_3_SIG_RSA_PSS_PSS_SHA512 0x080B + +/* LEGACY ALGORITHMS */ +#define MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA1 0x0201 +#define MBEDTLS_TLS1_3_SIG_ECDSA_SHA1 0x0203 + +#define MBEDTLS_TLS1_3_SIG_NONE 0x0 + +/* + * Client Certificate Types + * RFC 5246 section 7.4.4 plus RFC 4492 section 5.5 + */ +#define MBEDTLS_SSL_CERT_TYPE_RSA_SIGN 1 +#define MBEDTLS_SSL_CERT_TYPE_ECDSA_SIGN 64 + +/* + * Message, alert and handshake types + */ +#define MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC 20 +#define MBEDTLS_SSL_MSG_ALERT 21 +#define MBEDTLS_SSL_MSG_HANDSHAKE 22 +#define MBEDTLS_SSL_MSG_APPLICATION_DATA 23 +#define MBEDTLS_SSL_MSG_CID 25 + +#define MBEDTLS_SSL_ALERT_LEVEL_WARNING 1 +#define MBEDTLS_SSL_ALERT_LEVEL_FATAL 2 + +#define MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY 0 /* 0x00 */ +#define MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE 10 /* 0x0A */ +#define MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC 20 /* 0x14 */ +#define MBEDTLS_SSL_ALERT_MSG_DECRYPTION_FAILED 21 /* 0x15 */ +#define MBEDTLS_SSL_ALERT_MSG_RECORD_OVERFLOW 22 /* 0x16 */ +#define MBEDTLS_SSL_ALERT_MSG_DECOMPRESSION_FAILURE 30 /* 0x1E */ +#define MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE 40 /* 0x28 */ +#define MBEDTLS_SSL_ALERT_MSG_NO_CERT 41 /* 0x29 */ +#define MBEDTLS_SSL_ALERT_MSG_BAD_CERT 42 /* 0x2A */ +#define MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT 43 /* 0x2B */ +#define MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED 44 /* 0x2C */ +#define MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED 45 /* 0x2D */ +#define MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN 46 /* 0x2E */ +#define MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER 47 /* 0x2F */ +#define MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA 48 /* 0x30 */ +#define MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED 49 /* 0x31 */ +#define MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR 50 /* 0x32 */ +#define MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR 51 /* 0x33 */ +#define MBEDTLS_SSL_ALERT_MSG_EXPORT_RESTRICTION 60 /* 0x3C */ +#define MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION 70 /* 0x46 */ +#define MBEDTLS_SSL_ALERT_MSG_INSUFFICIENT_SECURITY 71 /* 0x47 */ +#define MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR 80 /* 0x50 */ +#define MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK 86 /* 0x56 */ +#define MBEDTLS_SSL_ALERT_MSG_USER_CANCELED 90 /* 0x5A */ +#define MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION 100 /* 0x64 */ +#define MBEDTLS_SSL_ALERT_MSG_MISSING_EXTENSION 109 /* 0x6d -- new in TLS 1.3 */ +#define MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT 110 /* 0x6E */ +#define MBEDTLS_SSL_ALERT_MSG_UNRECOGNIZED_NAME 112 /* 0x70 */ +#define MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY 115 /* 0x73 */ +#define MBEDTLS_SSL_ALERT_MSG_CERT_REQUIRED 116 /* 0x74 */ +#define MBEDTLS_SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL 120 /* 0x78 */ + +#define MBEDTLS_SSL_HS_HELLO_REQUEST 0 +#define MBEDTLS_SSL_HS_CLIENT_HELLO 1 +#define MBEDTLS_SSL_HS_SERVER_HELLO 2 +#define MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST 3 +#define MBEDTLS_SSL_HS_NEW_SESSION_TICKET 4 +#define MBEDTLS_SSL_HS_END_OF_EARLY_DATA 5 +#define MBEDTLS_SSL_HS_ENCRYPTED_EXTENSIONS 8 +#define MBEDTLS_SSL_HS_CERTIFICATE 11 +#define MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE 12 +#define MBEDTLS_SSL_HS_CERTIFICATE_REQUEST 13 +#define MBEDTLS_SSL_HS_SERVER_HELLO_DONE 14 +#define MBEDTLS_SSL_HS_CERTIFICATE_VERIFY 15 +#define MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE 16 +#define MBEDTLS_SSL_HS_FINISHED 20 +#define MBEDTLS_SSL_HS_MESSAGE_HASH 254 + +/* + * TLS extensions + */ +#define MBEDTLS_TLS_EXT_SERVERNAME 0 +#define MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME 0 + +#define MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH 1 + +#define MBEDTLS_TLS_EXT_TRUNCATED_HMAC 4 +#define MBEDTLS_TLS_EXT_STATUS_REQUEST 5 /* RFC 6066 TLS 1.2 and 1.3 */ + +#define MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES 10 +#define MBEDTLS_TLS_EXT_SUPPORTED_GROUPS 10 /* RFC 8422,7919 TLS 1.2 and 1.3 */ +#define MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS 11 + +#define MBEDTLS_TLS_EXT_SIG_ALG 13 /* RFC 8446 TLS 1.3 */ +#define MBEDTLS_TLS_EXT_USE_SRTP 14 +#define MBEDTLS_TLS_EXT_HEARTBEAT 15 /* RFC 6520 TLS 1.2 and 1.3 */ +#define MBEDTLS_TLS_EXT_ALPN 16 + +#define MBEDTLS_TLS_EXT_SCT 18 /* RFC 6962 TLS 1.2 and 1.3 */ +#define MBEDTLS_TLS_EXT_CLI_CERT_TYPE 19 /* RFC 7250 TLS 1.2 and 1.3 */ +#define MBEDTLS_TLS_EXT_SERV_CERT_TYPE 20 /* RFC 7250 TLS 1.2 and 1.3 */ +#define MBEDTLS_TLS_EXT_PADDING 21 /* RFC 7685 TLS 1.2 and 1.3 */ +#define MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC 22 /* 0x16 */ +#define MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET 0x0017 /* 23 */ + +#define MBEDTLS_TLS_EXT_RECORD_SIZE_LIMIT 28 /* RFC 8449 (implemented for TLS 1.3 only) */ + +#define MBEDTLS_TLS_EXT_SESSION_TICKET 35 + +#define MBEDTLS_TLS_EXT_PRE_SHARED_KEY 41 /* RFC 8446 TLS 1.3 */ +#define MBEDTLS_TLS_EXT_EARLY_DATA 42 /* RFC 8446 TLS 1.3 */ +#define MBEDTLS_TLS_EXT_SUPPORTED_VERSIONS 43 /* RFC 8446 TLS 1.3 */ +#define MBEDTLS_TLS_EXT_COOKIE 44 /* RFC 8446 TLS 1.3 */ +#define MBEDTLS_TLS_EXT_PSK_KEY_EXCHANGE_MODES 45 /* RFC 8446 TLS 1.3 */ + +#define MBEDTLS_TLS_EXT_CERT_AUTH 47 /* RFC 8446 TLS 1.3 */ +#define MBEDTLS_TLS_EXT_OID_FILTERS 48 /* RFC 8446 TLS 1.3 */ +#define MBEDTLS_TLS_EXT_POST_HANDSHAKE_AUTH 49 /* RFC 8446 TLS 1.3 */ +#define MBEDTLS_TLS_EXT_SIG_ALG_CERT 50 /* RFC 8446 TLS 1.3 */ +#define MBEDTLS_TLS_EXT_KEY_SHARE 51 /* RFC 8446 TLS 1.3 */ + +#if MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT == 0 +#define MBEDTLS_TLS_EXT_CID 54 /* RFC 9146 DTLS 1.2 CID */ +#else +#define MBEDTLS_TLS_EXT_CID 254 /* Pre-RFC 9146 DTLS 1.2 CID */ +#endif + +#define MBEDTLS_TLS_EXT_ECJPAKE_KKPP 256 /* experimental */ + +#define MBEDTLS_TLS_EXT_RENEGOTIATION_INFO 0xFF01 + +/* + * Size defines + */ +#if !defined(MBEDTLS_PSK_MAX_LEN) +/* + * If the library supports TLS 1.3 tickets and the cipher suite + * TLS1-3-AES-256-GCM-SHA384, set the PSK maximum length to 48 instead of 32. + * That way, the TLS 1.3 client and server are able to resume sessions where + * the cipher suite is TLS1-3-AES-256-GCM-SHA384 (pre-shared keys are 48 + * bytes long in that case). + */ +#if defined(MBEDTLS_SSL_PROTO_TLS1_3) && \ + defined(MBEDTLS_SSL_SESSION_TICKETS) && \ + defined(MBEDTLS_AES_C) && defined(MBEDTLS_GCM_C) && \ + defined(MBEDTLS_MD_CAN_SHA384) +#define MBEDTLS_PSK_MAX_LEN 48 /* 384 bits */ +#else +#define MBEDTLS_PSK_MAX_LEN 32 /* 256 bits */ +#endif +#endif /* !MBEDTLS_PSK_MAX_LEN */ + +/* Dummy type used only for its size */ +union mbedtls_ssl_premaster_secret { + unsigned char dummy; /* Make the union non-empty even with SSL disabled */ +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) + unsigned char _pms_rsa[48]; /* RFC 5246 8.1.1 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) + unsigned char _pms_dhm[MBEDTLS_MPI_MAX_SIZE]; /* RFC 5246 8.1.2 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) + unsigned char _pms_ecdh[MBEDTLS_ECP_MAX_BYTES]; /* RFC 4492 5.10 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) + unsigned char _pms_psk[4 + 2 * MBEDTLS_PSK_MAX_LEN]; /* RFC 4279 2 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) + unsigned char _pms_dhe_psk[4 + MBEDTLS_MPI_MAX_SIZE + + MBEDTLS_PSK_MAX_LEN]; /* RFC 4279 3 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) + unsigned char _pms_rsa_psk[52 + MBEDTLS_PSK_MAX_LEN]; /* RFC 4279 4 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) + unsigned char _pms_ecdhe_psk[4 + MBEDTLS_ECP_MAX_BYTES + + MBEDTLS_PSK_MAX_LEN]; /* RFC 5489 2 */ +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + unsigned char _pms_ecjpake[32]; /* Thread spec: SHA-256 output */ +#endif +}; + +#define MBEDTLS_PREMASTER_SIZE sizeof(union mbedtls_ssl_premaster_secret) + +#define MBEDTLS_TLS1_3_MD_MAX_SIZE PSA_HASH_MAX_SIZE + + +/* Length in number of bytes of the TLS sequence number */ +#define MBEDTLS_SSL_SEQUENCE_NUMBER_LEN 8 + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * SSL state machine + */ +typedef enum { + MBEDTLS_SSL_HELLO_REQUEST, + MBEDTLS_SSL_CLIENT_HELLO, + MBEDTLS_SSL_SERVER_HELLO, + MBEDTLS_SSL_SERVER_CERTIFICATE, + MBEDTLS_SSL_SERVER_KEY_EXCHANGE, + MBEDTLS_SSL_CERTIFICATE_REQUEST, + MBEDTLS_SSL_SERVER_HELLO_DONE, + MBEDTLS_SSL_CLIENT_CERTIFICATE, + MBEDTLS_SSL_CLIENT_KEY_EXCHANGE, + MBEDTLS_SSL_CERTIFICATE_VERIFY, + MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC, + MBEDTLS_SSL_CLIENT_FINISHED, + MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC, + MBEDTLS_SSL_SERVER_FINISHED, + MBEDTLS_SSL_FLUSH_BUFFERS, + MBEDTLS_SSL_HANDSHAKE_WRAPUP, + + MBEDTLS_SSL_NEW_SESSION_TICKET, + MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT, + MBEDTLS_SSL_HELLO_RETRY_REQUEST, + MBEDTLS_SSL_ENCRYPTED_EXTENSIONS, + MBEDTLS_SSL_END_OF_EARLY_DATA, + MBEDTLS_SSL_CLIENT_CERTIFICATE_VERIFY, + MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED, + MBEDTLS_SSL_CLIENT_CCS_BEFORE_2ND_CLIENT_HELLO, + MBEDTLS_SSL_SERVER_CCS_AFTER_SERVER_HELLO, + MBEDTLS_SSL_CLIENT_CCS_AFTER_CLIENT_HELLO, + MBEDTLS_SSL_SERVER_CCS_AFTER_HELLO_RETRY_REQUEST, + MBEDTLS_SSL_HANDSHAKE_OVER, + MBEDTLS_SSL_TLS1_3_NEW_SESSION_TICKET, + MBEDTLS_SSL_TLS1_3_NEW_SESSION_TICKET_FLUSH, +} +mbedtls_ssl_states; + +/** + * \brief Callback type: send data on the network. + * + * \note That callback may be either blocking or non-blocking. + * + * \param ctx Context for the send callback (typically a file descriptor) + * \param buf Buffer holding the data to send + * \param len Length of the data to send + * + * \return The callback must return the number of bytes sent if any, + * or a non-zero error code. + * If performing non-blocking I/O, \c MBEDTLS_ERR_SSL_WANT_WRITE + * must be returned when the operation would block. + * + * \note The callback is allowed to send fewer bytes than requested. + * It must always return the number of bytes actually sent. + */ +typedef int mbedtls_ssl_send_t(void *ctx, + const unsigned char *buf, + size_t len); + +/** + * \brief Callback type: receive data from the network. + * + * \note That callback may be either blocking or non-blocking. + * + * \param ctx Context for the receive callback (typically a file + * descriptor) + * \param buf Buffer to write the received data to + * \param len Length of the receive buffer + * + * \returns If data has been received, the positive number of bytes received. + * \returns \c 0 if the connection has been closed. + * \returns If performing non-blocking I/O, \c MBEDTLS_ERR_SSL_WANT_READ + * must be returned when the operation would block. + * \returns Another negative error code on other kinds of failures. + * + * \note The callback may receive fewer bytes than the length of the + * buffer. It must always return the number of bytes actually + * received and written to the buffer. + */ +typedef int mbedtls_ssl_recv_t(void *ctx, + unsigned char *buf, + size_t len); + +/** + * \brief Callback type: receive data from the network, with timeout + * + * \note That callback must block until data is received, or the + * timeout delay expires, or the operation is interrupted by a + * signal. + * + * \param ctx Context for the receive callback (typically a file descriptor) + * \param buf Buffer to write the received data to + * \param len Length of the receive buffer + * \param timeout Maximum number of milliseconds to wait for data + * 0 means no timeout (potentially waiting forever) + * + * \return The callback must return the number of bytes received, + * or a non-zero error code: + * \c MBEDTLS_ERR_SSL_TIMEOUT if the operation timed out, + * \c MBEDTLS_ERR_SSL_WANT_READ if interrupted by a signal. + * + * \note The callback may receive fewer bytes than the length of the + * buffer. It must always return the number of bytes actually + * received and written to the buffer. + */ +typedef int mbedtls_ssl_recv_timeout_t(void *ctx, + unsigned char *buf, + size_t len, + uint32_t timeout); +/** + * \brief Callback type: set a pair of timers/delays to watch + * + * \param ctx Context pointer + * \param int_ms Intermediate delay in milliseconds + * \param fin_ms Final delay in milliseconds + * 0 cancels the current timer. + * + * \note This callback must at least store the necessary information + * for the associated \c mbedtls_ssl_get_timer_t callback to + * return correct information. + * + * \note If using an event-driven style of programming, an event must + * be generated when the final delay is passed. The event must + * cause a call to \c mbedtls_ssl_handshake() with the proper + * SSL context to be scheduled. Care must be taken to ensure + * that at most one such call happens at a time. + * + * \note Only one timer at a time must be running. Calling this + * function while a timer is running must cancel it. Cancelled + * timers must not generate any event. + */ +typedef void mbedtls_ssl_set_timer_t(void *ctx, + uint32_t int_ms, + uint32_t fin_ms); + +/** + * \brief Callback type: get status of timers/delays + * + * \param ctx Context pointer + * + * \return This callback must return: + * -1 if cancelled (fin_ms == 0), + * 0 if none of the delays have passed, + * 1 if only the intermediate delay has passed, + * 2 if the final delay has passed. + */ +typedef int mbedtls_ssl_get_timer_t(void *ctx); + +/* Defined below */ +typedef struct mbedtls_ssl_session mbedtls_ssl_session; +typedef struct mbedtls_ssl_context mbedtls_ssl_context; +typedef struct mbedtls_ssl_config mbedtls_ssl_config; + +/* Defined in library/ssl_misc.h */ +typedef struct mbedtls_ssl_transform mbedtls_ssl_transform; +typedef struct mbedtls_ssl_handshake_params mbedtls_ssl_handshake_params; +typedef struct mbedtls_ssl_sig_hash_set_t mbedtls_ssl_sig_hash_set_t; +#if defined(MBEDTLS_X509_CRT_PARSE_C) +typedef struct mbedtls_ssl_key_cert mbedtls_ssl_key_cert; +#endif +#if defined(MBEDTLS_SSL_PROTO_DTLS) +typedef struct mbedtls_ssl_flight_item mbedtls_ssl_flight_item; +#endif + +#if defined(MBEDTLS_SSL_PROTO_TLS1_3) && defined(MBEDTLS_SSL_SESSION_TICKETS) +#define MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_PSK_RESUMPTION \ + MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK /* 1U << 0 */ +#define MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_PSK_EPHEMERAL_RESUMPTION \ + MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL /* 1U << 2 */ +#define MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_EARLY_DATA (1U << 3) + +#define MBEDTLS_SSL_TLS1_3_TICKET_FLAGS_MASK \ + (MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_PSK_RESUMPTION | \ + MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_PSK_EPHEMERAL_RESUMPTION | \ + MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_EARLY_DATA) +#endif /* MBEDTLS_SSL_PROTO_TLS1_3 && MBEDTLS_SSL_SESSION_TICKETS */ + +/** + * \brief Callback type: server-side session cache getter + * + * The session cache is logically a key value store, with + * keys being session IDs and values being instances of + * mbedtls_ssl_session. + * + * This callback retrieves an entry in this key-value store. + * + * \param data The address of the session cache structure to query. + * \param session_id The buffer holding the session ID to query. + * \param session_id_len The length of \p session_id in Bytes. + * \param session The address of the session structure to populate. + * It is initialized with mbdtls_ssl_session_init(), + * and the callback must always leave it in a state + * where it can safely be freed via + * mbedtls_ssl_session_free() independent of the + * return code of this function. + * + * \return \c 0 on success + * \return A non-zero return value on failure. + * + */ +typedef int mbedtls_ssl_cache_get_t(void *data, + unsigned char const *session_id, + size_t session_id_len, + mbedtls_ssl_session *session); +/** + * \brief Callback type: server-side session cache setter + * + * The session cache is logically a key value store, with + * keys being session IDs and values being instances of + * mbedtls_ssl_session. + * + * This callback sets an entry in this key-value store. + * + * \param data The address of the session cache structure to modify. + * \param session_id The buffer holding the session ID to query. + * \param session_id_len The length of \p session_id in Bytes. + * \param session The address of the session to be stored in the + * session cache. + * + * \return \c 0 on success + * \return A non-zero return value on failure. + */ +typedef int mbedtls_ssl_cache_set_t(void *data, + unsigned char const *session_id, + size_t session_id_len, + const mbedtls_ssl_session *session); + +#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/** + * \brief Callback type: start external signature operation. + * + * This callback is called during an SSL handshake to start + * a signature decryption operation using an + * external processor. The parameter \p cert contains + * the public key; it is up to the callback function to + * determine how to access the associated private key. + * + * This function typically sends or enqueues a request, and + * does not wait for the operation to complete. This allows + * the handshake step to be non-blocking. + * + * The parameters \p ssl and \p cert are guaranteed to remain + * valid throughout the handshake. On the other hand, this + * function must save the contents of \p hash if the value + * is needed for later processing, because the \p hash buffer + * is no longer valid after this function returns. + * + * This function may call mbedtls_ssl_set_async_operation_data() + * to store an operation context for later retrieval + * by the resume or cancel callback. + * + * \note For RSA signatures, this function must produce output + * that is consistent with PKCS#1 v1.5 in the same way as + * mbedtls_rsa_pkcs1_sign(). Before the private key operation, + * apply the padding steps described in RFC 8017, section 9.2 + * "EMSA-PKCS1-v1_5" as follows. + * - If \p md_alg is #MBEDTLS_MD_NONE, apply the PKCS#1 v1.5 + * encoding, treating \p hash as the DigestInfo to be + * padded. In other words, apply EMSA-PKCS1-v1_5 starting + * from step 3, with `T = hash` and `tLen = hash_len`. + * - If `md_alg != MBEDTLS_MD_NONE`, apply the PKCS#1 v1.5 + * encoding, treating \p hash as the hash to be encoded and + * padded. In other words, apply EMSA-PKCS1-v1_5 starting + * from step 2, with `digestAlgorithm` obtained by calling + * mbedtls_oid_get_oid_by_md() on \p md_alg. + * + * \note For ECDSA signatures, the output format is the DER encoding + * `Ecdsa-Sig-Value` defined in + * [RFC 4492 section 5.4](https://tools.ietf.org/html/rfc4492#section-5.4). + * + * \param ssl The SSL connection instance. It should not be + * modified other than via + * mbedtls_ssl_set_async_operation_data(). + * \param cert Certificate containing the public key. + * In simple cases, this is one of the pointers passed to + * mbedtls_ssl_conf_own_cert() when configuring the SSL + * connection. However, if other callbacks are used, this + * property may not hold. For example, if an SNI callback + * is registered with mbedtls_ssl_conf_sni(), then + * this callback determines what certificate is used. + * \param md_alg Hash algorithm. + * \param hash Buffer containing the hash. This buffer is + * no longer valid when the function returns. + * \param hash_len Size of the \c hash buffer in bytes. + * + * \return 0 if the operation was started successfully and the SSL + * stack should call the resume callback immediately. + * \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if the operation + * was started successfully and the SSL stack should return + * immediately without calling the resume callback yet. + * \return #MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH if the external + * processor does not support this key. The SSL stack will + * use the private key object instead. + * \return Any other error indicates a fatal failure and is + * propagated up the call chain. The callback should + * use \c MBEDTLS_ERR_PK_xxx error codes, and <b>must not</b> + * use \c MBEDTLS_ERR_SSL_xxx error codes except as + * directed in the documentation of this callback. + */ +typedef int mbedtls_ssl_async_sign_t(mbedtls_ssl_context *ssl, + mbedtls_x509_crt *cert, + mbedtls_md_type_t md_alg, + const unsigned char *hash, + size_t hash_len); + +/** + * \brief Callback type: start external decryption operation. + * + * This callback is called during an SSL handshake to start + * an RSA decryption operation using an + * external processor. The parameter \p cert contains + * the public key; it is up to the callback function to + * determine how to access the associated private key. + * + * This function typically sends or enqueues a request, and + * does not wait for the operation to complete. This allows + * the handshake step to be non-blocking. + * + * The parameters \p ssl and \p cert are guaranteed to remain + * valid throughout the handshake. On the other hand, this + * function must save the contents of \p input if the value + * is needed for later processing, because the \p input buffer + * is no longer valid after this function returns. + * + * This function may call mbedtls_ssl_set_async_operation_data() + * to store an operation context for later retrieval + * by the resume or cancel callback. + * + * \warning RSA decryption as used in TLS is subject to a potential + * timing side channel attack first discovered by Bleichenbacher + * in 1998. This attack can be remotely exploitable + * in practice. To avoid this attack, you must ensure that + * if the callback performs an RSA decryption, the time it + * takes to execute and return the result does not depend + * on whether the RSA decryption succeeded or reported + * invalid padding. + * + * \param ssl The SSL connection instance. It should not be + * modified other than via + * mbedtls_ssl_set_async_operation_data(). + * \param cert Certificate containing the public key. + * In simple cases, this is one of the pointers passed to + * mbedtls_ssl_conf_own_cert() when configuring the SSL + * connection. However, if other callbacks are used, this + * property may not hold. For example, if an SNI callback + * is registered with mbedtls_ssl_conf_sni(), then + * this callback determines what certificate is used. + * \param input Buffer containing the input ciphertext. This buffer + * is no longer valid when the function returns. + * \param input_len Size of the \p input buffer in bytes. + * + * \return 0 if the operation was started successfully and the SSL + * stack should call the resume callback immediately. + * \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if the operation + * was started successfully and the SSL stack should return + * immediately without calling the resume callback yet. + * \return #MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH if the external + * processor does not support this key. The SSL stack will + * use the private key object instead. + * \return Any other error indicates a fatal failure and is + * propagated up the call chain. The callback should + * use \c MBEDTLS_ERR_PK_xxx error codes, and <b>must not</b> + * use \c MBEDTLS_ERR_SSL_xxx error codes except as + * directed in the documentation of this callback. + */ +typedef int mbedtls_ssl_async_decrypt_t(mbedtls_ssl_context *ssl, + mbedtls_x509_crt *cert, + const unsigned char *input, + size_t input_len); +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +/** + * \brief Callback type: resume external operation. + * + * This callback is called during an SSL handshake to resume + * an external operation started by the + * ::mbedtls_ssl_async_sign_t or + * ::mbedtls_ssl_async_decrypt_t callback. + * + * This function typically checks the status of a pending + * request or causes the request queue to make progress, and + * does not wait for the operation to complete. This allows + * the handshake step to be non-blocking. + * + * This function may call mbedtls_ssl_get_async_operation_data() + * to retrieve an operation context set by the start callback. + * It may call mbedtls_ssl_set_async_operation_data() to modify + * this context. + * + * Note that when this function returns a status other than + * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS, it must free any + * resources associated with the operation. + * + * \param ssl The SSL connection instance. It should not be + * modified other than via + * mbedtls_ssl_set_async_operation_data(). + * \param output Buffer containing the output (signature or decrypted + * data) on success. + * \param output_len On success, number of bytes written to \p output. + * \param output_size Size of the \p output buffer in bytes. + * + * \return 0 if output of the operation is available in the + * \p output buffer. + * \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if the operation + * is still in progress. Subsequent requests for progress + * on the SSL connection will call the resume callback + * again. + * \return Any other error means that the operation is aborted. + * The SSL handshake is aborted. The callback should + * use \c MBEDTLS_ERR_PK_xxx error codes, and <b>must not</b> + * use \c MBEDTLS_ERR_SSL_xxx error codes except as + * directed in the documentation of this callback. + */ +typedef int mbedtls_ssl_async_resume_t(mbedtls_ssl_context *ssl, + unsigned char *output, + size_t *output_len, + size_t output_size); + +/** + * \brief Callback type: cancel external operation. + * + * This callback is called if an SSL connection is closed + * while an asynchronous operation is in progress. Note that + * this callback is not called if the + * ::mbedtls_ssl_async_resume_t callback has run and has + * returned a value other than + * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS, since in that case + * the asynchronous operation has already completed. + * + * This function may call mbedtls_ssl_get_async_operation_data() + * to retrieve an operation context set by the start callback. + * + * \param ssl The SSL connection instance. It should not be + * modified. + */ +typedef void mbedtls_ssl_async_cancel_t(mbedtls_ssl_context *ssl); +#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ + +#if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) && \ + !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) +#define MBEDTLS_SSL_PEER_CERT_DIGEST_MAX_LEN 48 +#if defined(MBEDTLS_MD_CAN_SHA256) +#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE MBEDTLS_MD_SHA256 +#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN 32 +#elif defined(MBEDTLS_MD_CAN_SHA384) +#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE MBEDTLS_MD_SHA384 +#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN 48 +#elif defined(MBEDTLS_MD_CAN_SHA1) +#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE MBEDTLS_MD_SHA1 +#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN 20 +#else +/* This is already checked in check_config.h, but be sure. */ +#error "Bad configuration - need SHA-1, SHA-256 or SHA-512 enabled to compute digest of peer CRT." +#endif +#endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED && + !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ + +typedef struct { + unsigned char client_application_traffic_secret_N[MBEDTLS_TLS1_3_MD_MAX_SIZE]; + unsigned char server_application_traffic_secret_N[MBEDTLS_TLS1_3_MD_MAX_SIZE]; + unsigned char exporter_master_secret[MBEDTLS_TLS1_3_MD_MAX_SIZE]; + unsigned char resumption_master_secret[MBEDTLS_TLS1_3_MD_MAX_SIZE]; +} mbedtls_ssl_tls13_application_secrets; + +#if defined(MBEDTLS_SSL_DTLS_SRTP) + +#define MBEDTLS_TLS_SRTP_MAX_MKI_LENGTH 255 +#define MBEDTLS_TLS_SRTP_MAX_PROFILE_LIST_LENGTH 4 +/* + * For code readability use a typedef for DTLS-SRTP profiles + * + * Use_srtp extension protection profiles values as defined in + * http://www.iana.org/assignments/srtp-protection/srtp-protection.xhtml + * + * Reminder: if this list is expanded mbedtls_ssl_check_srtp_profile_value + * must be updated too. + */ +#define MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_80 ((uint16_t) 0x0001) +#define MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_32 ((uint16_t) 0x0002) +#define MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_80 ((uint16_t) 0x0005) +#define MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_32 ((uint16_t) 0x0006) +/* This one is not iana defined, but for code readability. */ +#define MBEDTLS_TLS_SRTP_UNSET ((uint16_t) 0x0000) + +typedef uint16_t mbedtls_ssl_srtp_profile; + +typedef struct mbedtls_dtls_srtp_info_t { + /*! The SRTP profile that was negotiated. */ + mbedtls_ssl_srtp_profile MBEDTLS_PRIVATE(chosen_dtls_srtp_profile); + /*! The length of mki_value. */ + uint16_t MBEDTLS_PRIVATE(mki_len); + /*! The mki_value used, with max size of 256 bytes. */ + unsigned char MBEDTLS_PRIVATE(mki_value)[MBEDTLS_TLS_SRTP_MAX_MKI_LENGTH]; +} +mbedtls_dtls_srtp_info; + +#endif /* MBEDTLS_SSL_DTLS_SRTP */ + +/** Human-friendly representation of the (D)TLS protocol version. */ +typedef enum { + MBEDTLS_SSL_VERSION_UNKNOWN, /*!< Context not in use or version not yet negotiated. */ + MBEDTLS_SSL_VERSION_TLS1_2 = 0x0303, /*!< (D)TLS 1.2 */ + MBEDTLS_SSL_VERSION_TLS1_3 = 0x0304, /*!< (D)TLS 1.3 */ +} mbedtls_ssl_protocol_version; + +/* + * This structure is used for storing current session data. + * + * Note: when changing this definition, we need to check and update: + * - in tests/suites/test_suite_ssl.function: + * ssl_populate_session() and ssl_serialize_session_save_load() + * - in library/ssl_tls.c: + * mbedtls_ssl_session_init() and mbedtls_ssl_session_free() + * mbedtls_ssl_session_save() and ssl_session_load() + * ssl_session_copy() + */ +struct mbedtls_ssl_session { +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) + unsigned char MBEDTLS_PRIVATE(mfl_code); /*!< MaxFragmentLength negotiated by peer */ +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + + unsigned char MBEDTLS_PRIVATE(exported); + + /** TLS version negotiated in the session. Used if and when renegotiating + * or resuming a session instead of the configured minor TLS version. + */ + mbedtls_ssl_protocol_version MBEDTLS_PRIVATE(tls_version); + +#if defined(MBEDTLS_HAVE_TIME) + mbedtls_time_t MBEDTLS_PRIVATE(start); /*!< starting time */ +#endif + int MBEDTLS_PRIVATE(ciphersuite); /*!< chosen ciphersuite */ + size_t MBEDTLS_PRIVATE(id_len); /*!< session id length */ + unsigned char MBEDTLS_PRIVATE(id)[32]; /*!< session identifier */ + unsigned char MBEDTLS_PRIVATE(master)[48]; /*!< the master secret */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) + mbedtls_x509_crt *MBEDTLS_PRIVATE(peer_cert); /*!< peer X.509 cert chain */ +#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ + /*! The digest of the peer's end-CRT. This must be kept to detect CRT + * changes during renegotiation, mitigating the triple handshake attack. */ + unsigned char *MBEDTLS_PRIVATE(peer_cert_digest); + size_t MBEDTLS_PRIVATE(peer_cert_digest_len); + mbedtls_md_type_t MBEDTLS_PRIVATE(peer_cert_digest_type); +#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + uint32_t MBEDTLS_PRIVATE(verify_result); /*!< verification result */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) + unsigned char *MBEDTLS_PRIVATE(ticket); /*!< RFC 5077 session ticket */ + size_t MBEDTLS_PRIVATE(ticket_len); /*!< session ticket length */ + uint32_t MBEDTLS_PRIVATE(ticket_lifetime); /*!< ticket lifetime hint */ +#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */ + +#if defined(MBEDTLS_SSL_PROTO_TLS1_3) && defined(MBEDTLS_SSL_SESSION_TICKETS) + uint8_t MBEDTLS_PRIVATE(endpoint); /*!< 0: client, 1: server */ + uint8_t MBEDTLS_PRIVATE(ticket_flags); /*!< Ticket flags */ + uint32_t MBEDTLS_PRIVATE(ticket_age_add); /*!< Randomly generated value used to obscure the age of the ticket */ + uint8_t MBEDTLS_PRIVATE(resumption_key_len); /*!< resumption_key length */ + unsigned char MBEDTLS_PRIVATE(resumption_key)[MBEDTLS_SSL_TLS1_3_TICKET_RESUMPTION_KEY_LEN]; + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) && defined(MBEDTLS_SSL_CLI_C) + char *MBEDTLS_PRIVATE(hostname); /*!< host name binded with tickets */ +#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION && MBEDTLS_SSL_CLI_C */ + +#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_CLI_C) + mbedtls_time_t MBEDTLS_PRIVATE(ticket_received); /*!< time ticket was received */ +#endif /* MBEDTLS_HAVE_TIME && MBEDTLS_SSL_CLI_C */ + +#endif /* MBEDTLS_SSL_PROTO_TLS1_3 && MBEDTLS_SSL_SESSION_TICKETS */ + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + int MBEDTLS_PRIVATE(encrypt_then_mac); /*!< flag for EtM activation */ +#endif + +#if defined(MBEDTLS_SSL_PROTO_TLS1_3) + mbedtls_ssl_tls13_application_secrets MBEDTLS_PRIVATE(app_secrets); +#endif +}; + +/* + * Identifiers for PRFs used in various versions of TLS. + */ +typedef enum { + MBEDTLS_SSL_TLS_PRF_NONE, + MBEDTLS_SSL_TLS_PRF_SHA384, + MBEDTLS_SSL_TLS_PRF_SHA256, + MBEDTLS_SSL_HKDF_EXPAND_SHA384, + MBEDTLS_SSL_HKDF_EXPAND_SHA256 +} +mbedtls_tls_prf_types; + +typedef enum { + MBEDTLS_SSL_KEY_EXPORT_TLS12_MASTER_SECRET = 0, +#if defined(MBEDTLS_SSL_PROTO_TLS1_3) + MBEDTLS_SSL_KEY_EXPORT_TLS1_3_CLIENT_EARLY_SECRET, + MBEDTLS_SSL_KEY_EXPORT_TLS1_3_EARLY_EXPORTER_SECRET, + MBEDTLS_SSL_KEY_EXPORT_TLS1_3_CLIENT_HANDSHAKE_TRAFFIC_SECRET, + MBEDTLS_SSL_KEY_EXPORT_TLS1_3_SERVER_HANDSHAKE_TRAFFIC_SECRET, + MBEDTLS_SSL_KEY_EXPORT_TLS1_3_CLIENT_APPLICATION_TRAFFIC_SECRET, + MBEDTLS_SSL_KEY_EXPORT_TLS1_3_SERVER_APPLICATION_TRAFFIC_SECRET, +#endif /* MBEDTLS_SSL_PROTO_TLS1_3 */ +} mbedtls_ssl_key_export_type; + +/** + * \brief Callback type: Export key alongside random values for + * session identification, and PRF for + * implementation of TLS key exporters. + * + * \param p_expkey Context for the callback. + * \param type The type of the key that is being exported. + * \param secret The address of the buffer holding the secret + * that's being exporterd. + * \param secret_len The length of \p secret in bytes. + * \param client_random The client random bytes. + * \param server_random The server random bytes. + * \param tls_prf_type The identifier for the PRF used in the handshake + * to which the key belongs. + */ +typedef void mbedtls_ssl_export_keys_t(void *p_expkey, + mbedtls_ssl_key_export_type type, + const unsigned char *secret, + size_t secret_len, + const unsigned char client_random[32], + const unsigned char server_random[32], + mbedtls_tls_prf_types tls_prf_type); + +#if defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Callback type: generic handshake callback + * + * \note Callbacks may use user_data funcs to set/get app user data. + * See \c mbedtls_ssl_get_user_data_p() + * \c mbedtls_ssl_get_user_data_n() + * \c mbedtls_ssl_conf_get_user_data_p() + * \c mbedtls_ssl_conf_get_user_data_n() + * + * \param ssl \c mbedtls_ssl_context on which the callback is run + * + * \return The return value of the callback is 0 if successful, + * or a specific MBEDTLS_ERR_XXX code, which will cause + * the handshake to be aborted. + */ +typedef int (*mbedtls_ssl_hs_cb_t)(mbedtls_ssl_context *ssl); +#endif + +/* A type for storing user data in a library structure. + * + * The representation of type may change in future versions of the library. + * Only the behaviors guaranteed by documented accessor functions are + * guaranteed to remain stable. + */ +typedef union { + uintptr_t n; /* typically a handle to an associated object */ + void *p; /* typically a pointer to extra data */ +} mbedtls_ssl_user_data_t; + +/** + * SSL/TLS configuration to be shared between mbedtls_ssl_context structures. + */ +struct mbedtls_ssl_config { + /* Group items mostly by size. This helps to reduce memory wasted to + * padding. It also helps to keep smaller fields early in the structure, + * so that elements tend to be in the 128-element direct access window + * on Arm Thumb, which reduces the code size. */ + + mbedtls_ssl_protocol_version MBEDTLS_PRIVATE(max_tls_version); /*!< max. TLS version used */ + mbedtls_ssl_protocol_version MBEDTLS_PRIVATE(min_tls_version); /*!< min. TLS version used */ + + /* + * Flags (could be bit-fields to save RAM, but separate bytes make + * the code smaller on architectures with an instruction for direct + * byte access). + */ + + uint8_t MBEDTLS_PRIVATE(endpoint); /*!< 0: client, 1: server */ + uint8_t MBEDTLS_PRIVATE(transport); /*!< 0: stream (TLS), 1: datagram (DTLS) */ + uint8_t MBEDTLS_PRIVATE(authmode); /*!< MBEDTLS_SSL_VERIFY_XXX */ + /* needed even with renego disabled for LEGACY_BREAK_HANDSHAKE */ + uint8_t MBEDTLS_PRIVATE(allow_legacy_renegotiation); /*!< MBEDTLS_LEGACY_XXX */ +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) + uint8_t MBEDTLS_PRIVATE(mfl_code); /*!< desired fragment length indicator + (MBEDTLS_SSL_MAX_FRAG_LEN_XXX) */ +#endif +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + uint8_t MBEDTLS_PRIVATE(encrypt_then_mac); /*!< negotiate encrypt-then-mac? */ +#endif +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) + uint8_t MBEDTLS_PRIVATE(extended_ms); /*!< negotiate extended master secret? */ +#endif +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) + uint8_t MBEDTLS_PRIVATE(anti_replay); /*!< detect and prevent replay? */ +#endif +#if defined(MBEDTLS_SSL_RENEGOTIATION) + uint8_t MBEDTLS_PRIVATE(disable_renegotiation); /*!< disable renegotiation? */ +#endif +#if defined(MBEDTLS_SSL_SESSION_TICKETS) && \ + defined(MBEDTLS_SSL_CLI_C) + uint8_t MBEDTLS_PRIVATE(session_tickets); /*!< use session tickets? */ +#endif + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) && \ + defined(MBEDTLS_SSL_SRV_C) && \ + defined(MBEDTLS_SSL_PROTO_TLS1_3) + uint16_t MBEDTLS_PRIVATE(new_session_tickets_count); /*!< number of NewSessionTicket */ +#endif + +#if defined(MBEDTLS_SSL_SRV_C) + uint8_t MBEDTLS_PRIVATE(cert_req_ca_list); /*!< enable sending CA list in + Certificate Request messages? */ + uint8_t MBEDTLS_PRIVATE(respect_cli_pref); /*!< pick the ciphersuite according to + the client's preferences rather + than ours? */ +#endif +#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) + uint8_t MBEDTLS_PRIVATE(ignore_unexpected_cid); /*!< Should DTLS record with + * unexpected CID + * lead to failure? */ +#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ +#if defined(MBEDTLS_SSL_DTLS_SRTP) + uint8_t MBEDTLS_PRIVATE(dtls_srtp_mki_support); /* support having mki_value + in the use_srtp extension? */ +#endif + + /* + * Pointers + */ + + /** Allowed ciphersuites for (D)TLS 1.2 (0-terminated) */ + const int *MBEDTLS_PRIVATE(ciphersuite_list); + +#if defined(MBEDTLS_SSL_PROTO_TLS1_3) + /** Allowed TLS 1.3 key exchange modes. */ + int MBEDTLS_PRIVATE(tls13_kex_modes); +#endif /* MBEDTLS_SSL_PROTO_TLS1_3 */ + + /** Callback for printing debug output */ + void(*MBEDTLS_PRIVATE(f_dbg))(void *, int, const char *, int, const char *); + void *MBEDTLS_PRIVATE(p_dbg); /*!< context for the debug function */ + + /** Callback for getting (pseudo-)random numbers */ + int(*MBEDTLS_PRIVATE(f_rng))(void *, unsigned char *, size_t); + void *MBEDTLS_PRIVATE(p_rng); /*!< context for the RNG function */ + + /** Callback to retrieve a session from the cache */ + mbedtls_ssl_cache_get_t *MBEDTLS_PRIVATE(f_get_cache); + /** Callback to store a session into the cache */ + mbedtls_ssl_cache_set_t *MBEDTLS_PRIVATE(f_set_cache); + void *MBEDTLS_PRIVATE(p_cache); /*!< context for cache callbacks */ + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) + /** Callback for setting cert according to SNI extension */ + int(*MBEDTLS_PRIVATE(f_sni))(void *, mbedtls_ssl_context *, const unsigned char *, size_t); + void *MBEDTLS_PRIVATE(p_sni); /*!< context for SNI callback */ +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + /** Callback to customize X.509 certificate chain verification */ + int(*MBEDTLS_PRIVATE(f_vrfy))(void *, mbedtls_x509_crt *, int, uint32_t *); + void *MBEDTLS_PRIVATE(p_vrfy); /*!< context for X.509 verify calllback */ +#endif + +#if defined(MBEDTLS_SSL_HANDSHAKE_WITH_PSK_ENABLED) +#if defined(MBEDTLS_SSL_SRV_C) + /** Callback to retrieve PSK key from identity */ + int(*MBEDTLS_PRIVATE(f_psk))(void *, mbedtls_ssl_context *, const unsigned char *, size_t); + void *MBEDTLS_PRIVATE(p_psk); /*!< context for PSK callback */ +#endif +#endif + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) + /** Callback to create & write a cookie for ClientHello verification */ + int(*MBEDTLS_PRIVATE(f_cookie_write))(void *, unsigned char **, unsigned char *, + const unsigned char *, size_t); + /** Callback to verify validity of a ClientHello cookie */ + int(*MBEDTLS_PRIVATE(f_cookie_check))(void *, const unsigned char *, size_t, + const unsigned char *, size_t); + void *MBEDTLS_PRIVATE(p_cookie); /*!< context for the cookie callbacks */ +#endif + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_SRV_C) + /** Callback to create & write a session ticket */ + int(*MBEDTLS_PRIVATE(f_ticket_write))(void *, const mbedtls_ssl_session *, + unsigned char *, const unsigned char *, size_t *, + uint32_t *); + /** Callback to parse a session ticket into a session structure */ + int(*MBEDTLS_PRIVATE(f_ticket_parse))(void *, mbedtls_ssl_session *, unsigned char *, size_t); + void *MBEDTLS_PRIVATE(p_ticket); /*!< context for the ticket callbacks */ +#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_SRV_C */ +#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) + size_t MBEDTLS_PRIVATE(cid_len); /*!< The length of CIDs for incoming DTLS records. */ +#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + const mbedtls_x509_crt_profile *MBEDTLS_PRIVATE(cert_profile); /*!< verification profile */ + mbedtls_ssl_key_cert *MBEDTLS_PRIVATE(key_cert); /*!< own certificate/key pair(s) */ + mbedtls_x509_crt *MBEDTLS_PRIVATE(ca_chain); /*!< trusted CAs */ + mbedtls_x509_crl *MBEDTLS_PRIVATE(ca_crl); /*!< trusted CAs CRLs */ +#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) + mbedtls_x509_crt_ca_cb_t MBEDTLS_PRIVATE(f_ca_cb); + void *MBEDTLS_PRIVATE(p_ca_cb); +#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) +#if defined(MBEDTLS_X509_CRT_PARSE_C) + mbedtls_ssl_async_sign_t *MBEDTLS_PRIVATE(f_async_sign_start); /*!< start asynchronous signature operation */ + mbedtls_ssl_async_decrypt_t *MBEDTLS_PRIVATE(f_async_decrypt_start); /*!< start asynchronous decryption operation */ +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + mbedtls_ssl_async_resume_t *MBEDTLS_PRIVATE(f_async_resume); /*!< resume asynchronous operation */ + mbedtls_ssl_async_cancel_t *MBEDTLS_PRIVATE(f_async_cancel); /*!< cancel asynchronous operation */ + void *MBEDTLS_PRIVATE(p_async_config_data); /*!< Configuration data set by mbedtls_ssl_conf_async_private_cb(). */ +#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ + +#if defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED) + +#if !defined(MBEDTLS_DEPRECATED_REMOVED) + const int *MBEDTLS_PRIVATE(sig_hashes); /*!< allowed signature hashes */ +#endif + const uint16_t *MBEDTLS_PRIVATE(sig_algs); /*!< allowed signature algorithms */ +#endif /* MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED */ + +#if defined(MBEDTLS_ECP_C) && !defined(MBEDTLS_DEPRECATED_REMOVED) + const mbedtls_ecp_group_id *MBEDTLS_PRIVATE(curve_list); /*!< allowed curves */ +#endif + + const uint16_t *MBEDTLS_PRIVATE(group_list); /*!< allowed IANA NamedGroups */ + +#if defined(MBEDTLS_DHM_C) + mbedtls_mpi MBEDTLS_PRIVATE(dhm_P); /*!< prime modulus for DHM */ + mbedtls_mpi MBEDTLS_PRIVATE(dhm_G); /*!< generator for DHM */ +#endif + +#if defined(MBEDTLS_SSL_HANDSHAKE_WITH_PSK_ENABLED) + +#if defined(MBEDTLS_USE_PSA_CRYPTO) + mbedtls_svc_key_id_t MBEDTLS_PRIVATE(psk_opaque); /*!< PSA key slot holding opaque PSK. This field + * should only be set via + * mbedtls_ssl_conf_psk_opaque(). + * If either no PSK or a raw PSK have been + * configured, this has value \c 0. + */ +#endif /* MBEDTLS_USE_PSA_CRYPTO */ + unsigned char *MBEDTLS_PRIVATE(psk); /*!< The raw pre-shared key. This field should + * only be set via mbedtls_ssl_conf_psk(). + * If either no PSK or an opaque PSK + * have been configured, this has value NULL. */ + size_t MBEDTLS_PRIVATE(psk_len); /*!< The length of the raw pre-shared key. + * This field should only be set via + * mbedtls_ssl_conf_psk(). + * Its value is non-zero if and only if + * \c psk is not \c NULL. */ + + unsigned char *MBEDTLS_PRIVATE(psk_identity); /*!< The PSK identity for PSK negotiation. + * This field should only be set via + * mbedtls_ssl_conf_psk(). + * This is set if and only if either + * \c psk or \c psk_opaque are set. */ + size_t MBEDTLS_PRIVATE(psk_identity_len);/*!< The length of PSK identity. + * This field should only be set via + * mbedtls_ssl_conf_psk(). + * Its value is non-zero if and only if + * \c psk is not \c NULL or \c psk_opaque + * is not \c 0. */ +#endif /* MBEDTLS_SSL_HANDSHAKE_WITH_PSK_ENABLED */ + +#if defined(MBEDTLS_SSL_EARLY_DATA) + int MBEDTLS_PRIVATE(early_data_enabled); /*!< Early data enablement: + * - MBEDTLS_SSL_EARLY_DATA_DISABLED, + * - MBEDTLS_SSL_EARLY_DATA_ENABLED */ + +#if defined(MBEDTLS_SSL_SRV_C) + /* The maximum amount of 0-RTT data. RFC 8446 section 4.6.1 */ + uint32_t MBEDTLS_PRIVATE(max_early_data_size); +#endif /* MBEDTLS_SSL_SRV_C */ + +#endif /* MBEDTLS_SSL_EARLY_DATA */ + +#if defined(MBEDTLS_SSL_ALPN) + const char **MBEDTLS_PRIVATE(alpn_list); /*!< ordered list of protocols */ +#endif + +#if defined(MBEDTLS_SSL_DTLS_SRTP) + /*! ordered list of supported srtp profile */ + const mbedtls_ssl_srtp_profile *MBEDTLS_PRIVATE(dtls_srtp_profile_list); + /*! number of supported profiles */ + size_t MBEDTLS_PRIVATE(dtls_srtp_profile_list_len); +#endif /* MBEDTLS_SSL_DTLS_SRTP */ + + /* + * Numerical settings (int) + */ + + uint32_t MBEDTLS_PRIVATE(read_timeout); /*!< timeout for mbedtls_ssl_read (ms) */ + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + uint32_t MBEDTLS_PRIVATE(hs_timeout_min); /*!< initial value of the handshake + retransmission timeout (ms) */ + uint32_t MBEDTLS_PRIVATE(hs_timeout_max); /*!< maximum value of the handshake + retransmission timeout (ms) */ +#endif + +#if defined(MBEDTLS_SSL_RENEGOTIATION) + int MBEDTLS_PRIVATE(renego_max_records); /*!< grace period for renegotiation */ + unsigned char MBEDTLS_PRIVATE(renego_period)[8]; /*!< value of the record counters + that triggers renegotiation */ +#endif + + unsigned int MBEDTLS_PRIVATE(badmac_limit); /*!< limit of records with a bad MAC */ + +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C) + unsigned int MBEDTLS_PRIVATE(dhm_min_bitlen); /*!< min. bit length of the DHM prime */ +#endif + + /** User data pointer or handle. + * + * The library sets this to \p 0 when creating a context and does not + * access it afterwards. + */ + mbedtls_ssl_user_data_t MBEDTLS_PRIVATE(user_data); + +#if defined(MBEDTLS_SSL_SRV_C) + mbedtls_ssl_hs_cb_t MBEDTLS_PRIVATE(f_cert_cb); /*!< certificate selection callback */ +#endif /* MBEDTLS_SSL_SRV_C */ + +#if defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED) + const mbedtls_x509_crt *MBEDTLS_PRIVATE(dn_hints);/*!< acceptable client cert issuers */ +#endif +}; + +struct mbedtls_ssl_context { + const mbedtls_ssl_config *MBEDTLS_PRIVATE(conf); /*!< configuration information */ + + /* + * Miscellaneous + */ + int MBEDTLS_PRIVATE(state); /*!< SSL handshake: current state */ +#if defined(MBEDTLS_SSL_RENEGOTIATION) + int MBEDTLS_PRIVATE(renego_status); /*!< Initial, in progress, pending? */ + int MBEDTLS_PRIVATE(renego_records_seen); /*!< Records since renego request, or with DTLS, + number of retransmissions of request if + renego_max_records is < 0 */ +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + + /** + * Maximum TLS version to be negotiated, then negotiated TLS version. + * + * It is initialized as the configured maximum TLS version to be + * negotiated by mbedtls_ssl_setup(). + * + * When renegotiating or resuming a session, it is overwritten in the + * ClientHello writing preparation stage with the previously negotiated + * TLS version. + * + * On client side, it is updated to the TLS version selected by the server + * for the handshake when the ServerHello is received. + * + * On server side, it is updated to the TLS version the server selects for + * the handshake when the ClientHello is received. + */ + mbedtls_ssl_protocol_version MBEDTLS_PRIVATE(tls_version); + + unsigned MBEDTLS_PRIVATE(badmac_seen); /*!< records with a bad MAC received */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + /** Callback to customize X.509 certificate chain verification */ + int(*MBEDTLS_PRIVATE(f_vrfy))(void *, mbedtls_x509_crt *, int, uint32_t *); + void *MBEDTLS_PRIVATE(p_vrfy); /*!< context for X.509 verify callback */ +#endif + + mbedtls_ssl_send_t *MBEDTLS_PRIVATE(f_send); /*!< Callback for network send */ + mbedtls_ssl_recv_t *MBEDTLS_PRIVATE(f_recv); /*!< Callback for network receive */ + mbedtls_ssl_recv_timeout_t *MBEDTLS_PRIVATE(f_recv_timeout); + /*!< Callback for network receive with timeout */ + + void *MBEDTLS_PRIVATE(p_bio); /*!< context for I/O operations */ + + /* + * Session layer + */ + mbedtls_ssl_session *MBEDTLS_PRIVATE(session_in); /*!< current session data (in) */ + mbedtls_ssl_session *MBEDTLS_PRIVATE(session_out); /*!< current session data (out) */ + mbedtls_ssl_session *MBEDTLS_PRIVATE(session); /*!< negotiated session data */ + mbedtls_ssl_session *MBEDTLS_PRIVATE(session_negotiate); /*!< session data in negotiation */ + + mbedtls_ssl_handshake_params *MBEDTLS_PRIVATE(handshake); /*!< params required only during + the handshake process */ + + /* + * Record layer transformations + */ + mbedtls_ssl_transform *MBEDTLS_PRIVATE(transform_in); /*!< current transform params (in) + * This is always a reference, + * never an owning pointer. */ + mbedtls_ssl_transform *MBEDTLS_PRIVATE(transform_out); /*!< current transform params (out) + * This is always a reference, + * never an owning pointer. */ + mbedtls_ssl_transform *MBEDTLS_PRIVATE(transform); /*!< negotiated transform params + * This pointer owns the transform + * it references. */ +#if defined(MBEDTLS_SSL_PROTO_TLS1_2) + mbedtls_ssl_transform *MBEDTLS_PRIVATE(transform_negotiate); /*!< transform params in negotiation + * This pointer owns the transform + * it references. */ +#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ + +#if defined(MBEDTLS_SSL_PROTO_TLS1_3) + /*! The application data transform in TLS 1.3. + * This pointer owns the transform it references. */ + mbedtls_ssl_transform *MBEDTLS_PRIVATE(transform_application); +#endif /* MBEDTLS_SSL_PROTO_TLS1_3 */ + + /* + * Timers + */ + void *MBEDTLS_PRIVATE(p_timer); /*!< context for the timer callbacks */ + + mbedtls_ssl_set_timer_t *MBEDTLS_PRIVATE(f_set_timer); /*!< set timer callback */ + mbedtls_ssl_get_timer_t *MBEDTLS_PRIVATE(f_get_timer); /*!< get timer callback */ + + /* + * Record layer (incoming data) + */ + unsigned char *MBEDTLS_PRIVATE(in_buf); /*!< input buffer */ + unsigned char *MBEDTLS_PRIVATE(in_ctr); /*!< 64-bit incoming message counter + TLS: maintained by us + DTLS: read from peer */ + unsigned char *MBEDTLS_PRIVATE(in_hdr); /*!< start of record header */ +#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) + unsigned char *MBEDTLS_PRIVATE(in_cid); /*!< The start of the CID; + * (the end is marked by in_len). */ +#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ + unsigned char *MBEDTLS_PRIVATE(in_len); /*!< two-bytes message length field */ + unsigned char *MBEDTLS_PRIVATE(in_iv); /*!< ivlen-byte IV */ + unsigned char *MBEDTLS_PRIVATE(in_msg); /*!< message contents (in_iv+ivlen) */ + unsigned char *MBEDTLS_PRIVATE(in_offt); /*!< read offset in application data */ + + int MBEDTLS_PRIVATE(in_msgtype); /*!< record header: message type */ + size_t MBEDTLS_PRIVATE(in_msglen); /*!< record header: message length */ + size_t MBEDTLS_PRIVATE(in_left); /*!< amount of data read so far */ +#if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) + size_t MBEDTLS_PRIVATE(in_buf_len); /*!< length of input buffer */ +#endif +#if defined(MBEDTLS_SSL_PROTO_DTLS) + uint16_t MBEDTLS_PRIVATE(in_epoch); /*!< DTLS epoch for incoming records */ + size_t MBEDTLS_PRIVATE(next_record_offset); /*!< offset of the next record in datagram + (equal to in_left if none) */ +#endif /* MBEDTLS_SSL_PROTO_DTLS */ +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) + uint64_t MBEDTLS_PRIVATE(in_window_top); /*!< last validated record seq_num */ + uint64_t MBEDTLS_PRIVATE(in_window); /*!< bitmask for replay detection */ +#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */ + + size_t MBEDTLS_PRIVATE(in_hslen); /*!< current handshake message length, + including the handshake header */ + int MBEDTLS_PRIVATE(nb_zero); /*!< # of 0-length encrypted messages */ + + int MBEDTLS_PRIVATE(keep_current_message); /*!< drop or reuse current message + on next call to record layer? */ + + /* The following three variables indicate if and, if yes, + * what kind of alert is pending to be sent. + */ + unsigned char MBEDTLS_PRIVATE(send_alert); /*!< Determines if a fatal alert + should be sent. Values: + - \c 0 , no alert is to be sent. + - \c 1 , alert is to be sent. */ + unsigned char MBEDTLS_PRIVATE(alert_type); /*!< Type of alert if send_alert + != 0 */ + int MBEDTLS_PRIVATE(alert_reason); /*!< The error code to be returned + to the user once the fatal alert + has been sent. */ + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + uint8_t MBEDTLS_PRIVATE(disable_datagram_packing); /*!< Disable packing multiple records + * within a single datagram. */ +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + + /* + * Record layer (outgoing data) + */ + unsigned char *MBEDTLS_PRIVATE(out_buf); /*!< output buffer */ + unsigned char *MBEDTLS_PRIVATE(out_ctr); /*!< 64-bit outgoing message counter */ + unsigned char *MBEDTLS_PRIVATE(out_hdr); /*!< start of record header */ +#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) + unsigned char *MBEDTLS_PRIVATE(out_cid); /*!< The start of the CID; + * (the end is marked by in_len). */ +#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ + unsigned char *MBEDTLS_PRIVATE(out_len); /*!< two-bytes message length field */ + unsigned char *MBEDTLS_PRIVATE(out_iv); /*!< ivlen-byte IV */ + unsigned char *MBEDTLS_PRIVATE(out_msg); /*!< message contents (out_iv+ivlen) */ + + int MBEDTLS_PRIVATE(out_msgtype); /*!< record header: message type */ + size_t MBEDTLS_PRIVATE(out_msglen); /*!< record header: message length */ + size_t MBEDTLS_PRIVATE(out_left); /*!< amount of data not yet written */ +#if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) + size_t MBEDTLS_PRIVATE(out_buf_len); /*!< length of output buffer */ +#endif + + unsigned char MBEDTLS_PRIVATE(cur_out_ctr)[MBEDTLS_SSL_SEQUENCE_NUMBER_LEN]; /*!< Outgoing record sequence number. */ + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + uint16_t MBEDTLS_PRIVATE(mtu); /*!< path mtu, used to fragment outgoing messages */ +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + + /* + * User settings + */ +#if defined(MBEDTLS_X509_CRT_PARSE_C) + char *MBEDTLS_PRIVATE(hostname); /*!< expected peer CN for verification + (and SNI if available) */ +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_SSL_ALPN) + const char *MBEDTLS_PRIVATE(alpn_chosen); /*!< negotiated protocol */ +#endif /* MBEDTLS_SSL_ALPN */ + +#if defined(MBEDTLS_SSL_DTLS_SRTP) + /* + * use_srtp extension + */ + mbedtls_dtls_srtp_info MBEDTLS_PRIVATE(dtls_srtp_info); +#endif /* MBEDTLS_SSL_DTLS_SRTP */ + + /* + * Information for DTLS hello verify + */ +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) + unsigned char *MBEDTLS_PRIVATE(cli_id); /*!< transport-level ID of the client */ + size_t MBEDTLS_PRIVATE(cli_id_len); /*!< length of cli_id */ +#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */ + + /* + * Secure renegotiation + */ + /* needed to know when to send extension on server */ + int MBEDTLS_PRIVATE(secure_renegotiation); /*!< does peer support legacy or + secure renegotiation */ +#if defined(MBEDTLS_SSL_RENEGOTIATION) + size_t MBEDTLS_PRIVATE(verify_data_len); /*!< length of verify data stored */ + char MBEDTLS_PRIVATE(own_verify_data)[MBEDTLS_SSL_VERIFY_DATA_MAX_LEN]; /*!< previous handshake verify data */ + char MBEDTLS_PRIVATE(peer_verify_data)[MBEDTLS_SSL_VERIFY_DATA_MAX_LEN]; /*!< previous handshake verify data */ +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + +#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) + /* CID configuration to use in subsequent handshakes. */ + + /*! The next incoming CID, chosen by the user and applying to + * all subsequent handshakes. This may be different from the + * CID currently used in case the user has re-configured the CID + * after an initial handshake. */ + unsigned char MBEDTLS_PRIVATE(own_cid)[MBEDTLS_SSL_CID_IN_LEN_MAX]; + uint8_t MBEDTLS_PRIVATE(own_cid_len); /*!< The length of \c own_cid. */ + uint8_t MBEDTLS_PRIVATE(negotiate_cid); /*!< This indicates whether the CID extension should + * be negotiated in the next handshake or not. + * Possible values are #MBEDTLS_SSL_CID_ENABLED + * and #MBEDTLS_SSL_CID_DISABLED. */ +#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ + +#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_CLI_C) + int MBEDTLS_PRIVATE(early_data_status); +#endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_CLI_C */ + + /** Callback to export key block and master secret */ + mbedtls_ssl_export_keys_t *MBEDTLS_PRIVATE(f_export_keys); + void *MBEDTLS_PRIVATE(p_export_keys); /*!< context for key export callback */ + + /** User data pointer or handle. + * + * The library sets this to \p 0 when creating a context and does not + * access it afterwards. + * + * \warning Serializing and restoring an SSL context with + * mbedtls_ssl_context_save() and mbedtls_ssl_context_load() + * does not currently restore the user data. + */ + mbedtls_ssl_user_data_t MBEDTLS_PRIVATE(user_data); +}; + +/** + * \brief Return the name of the ciphersuite associated with the + * given ID + * + * \param ciphersuite_id SSL ciphersuite ID + * + * \return a string containing the ciphersuite name + */ +const char *mbedtls_ssl_get_ciphersuite_name(const int ciphersuite_id); + +/** + * \brief Return the ID of the ciphersuite associated with the + * given name + * + * \param ciphersuite_name SSL ciphersuite name + * + * \return the ID with the ciphersuite or 0 if not found + */ +int mbedtls_ssl_get_ciphersuite_id(const char *ciphersuite_name); + +/** + * \brief Initialize an SSL context + * Just makes the context ready for mbedtls_ssl_setup() or + * mbedtls_ssl_free() + * + * \param ssl SSL context + */ +void mbedtls_ssl_init(mbedtls_ssl_context *ssl); + +/** + * \brief Set up an SSL context for use + * + * \note No copy of the configuration context is made, it can be + * shared by many mbedtls_ssl_context structures. + * + * \warning The conf structure will be accessed during the session. + * It must not be modified or freed as long as the session + * is active. + * + * \warning This function must be called exactly once per context. + * Calling mbedtls_ssl_setup again is not supported, even + * if no session is active. + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param ssl SSL context + * \param conf SSL configuration to use + * + * \return 0 if successful, or MBEDTLS_ERR_SSL_ALLOC_FAILED if + * memory allocation failed + */ +int mbedtls_ssl_setup(mbedtls_ssl_context *ssl, + const mbedtls_ssl_config *conf); + +/** + * \brief Reset an already initialized SSL context for re-use + * while retaining application-set variables, function + * pointers and data. + * + * \param ssl SSL context + * \return 0 if successful, or MBEDTLS_ERR_SSL_ALLOC_FAILED or + MBEDTLS_ERR_SSL_HW_ACCEL_FAILED + */ +int mbedtls_ssl_session_reset(mbedtls_ssl_context *ssl); + +/** + * \brief Set the current endpoint type + * + * \param conf SSL configuration + * \param endpoint must be MBEDTLS_SSL_IS_CLIENT or MBEDTLS_SSL_IS_SERVER + */ +void mbedtls_ssl_conf_endpoint(mbedtls_ssl_config *conf, int endpoint); + +/** + * \brief Get the current endpoint type + * + * \param conf SSL configuration + * + * \return Endpoint type, either MBEDTLS_SSL_IS_CLIENT + * or MBEDTLS_SSL_IS_SERVER + */ +static inline int mbedtls_ssl_conf_get_endpoint(const mbedtls_ssl_config *conf) +{ + return conf->MBEDTLS_PRIVATE(endpoint); +} + +/** + * \brief Set the transport type (TLS or DTLS). + * Default: TLS + * + * \note For DTLS, you must either provide a recv callback that + * doesn't block, or one that handles timeouts, see + * \c mbedtls_ssl_set_bio(). You also need to provide timer + * callbacks with \c mbedtls_ssl_set_timer_cb(). + * + * \param conf SSL configuration + * \param transport transport type: + * MBEDTLS_SSL_TRANSPORT_STREAM for TLS, + * MBEDTLS_SSL_TRANSPORT_DATAGRAM for DTLS. + */ +void mbedtls_ssl_conf_transport(mbedtls_ssl_config *conf, int transport); + +/** + * \brief Set the certificate verification mode + * Default: NONE on server, REQUIRED on client + * + * \param conf SSL configuration + * \param authmode can be: + * + * MBEDTLS_SSL_VERIFY_NONE: peer certificate is not checked + * (default on server) + * (insecure on client) + * + * MBEDTLS_SSL_VERIFY_OPTIONAL: peer certificate is checked, however the + * handshake continues even if verification failed; + * mbedtls_ssl_get_verify_result() can be called after the + * handshake is complete. + * + * MBEDTLS_SSL_VERIFY_REQUIRED: peer *must* present a valid certificate, + * handshake is aborted if verification failed. + * (default on client) + * + * \note On client, MBEDTLS_SSL_VERIFY_REQUIRED is the recommended mode. + * With MBEDTLS_SSL_VERIFY_OPTIONAL, the user needs to call mbedtls_ssl_get_verify_result() at + * the right time(s), which may not be obvious, while REQUIRED always perform + * the verification as soon as possible. For example, REQUIRED was protecting + * against the "triple handshake" attack even before it was found. + */ +void mbedtls_ssl_conf_authmode(mbedtls_ssl_config *conf, int authmode); + +#if defined(MBEDTLS_SSL_PROTO_TLS1_3) && defined(MBEDTLS_SSL_EARLY_DATA) +/** + * \brief Set the early data mode + * Default: disabled on server and client + * + * \param conf The SSL configuration to use. + * \param early_data_enabled can be: + * + * MBEDTLS_SSL_EARLY_DATA_DISABLED: early data functionality is disabled + * This is the default on client and server. + * + * MBEDTLS_SSL_EARLY_DATA_ENABLED: early data functionality is enabled and + * may be negotiated in the handshake. Application using + * early data functionality needs to be aware of the + * lack of replay protection of the early data application + * payloads. + * + * \warning This interface is experimental and may change without notice. + * + */ +void mbedtls_ssl_tls13_conf_early_data(mbedtls_ssl_config *conf, + int early_data_enabled); + +#if defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Set the maximum amount of 0-RTT data in bytes + * Default: #MBEDTLS_SSL_MAX_EARLY_DATA_SIZE + * + * This function sets the value of the max_early_data_size + * field of the early data indication extension included in + * the NewSessionTicket messages that the server may send. + * + * The value defines the maximum amount of 0-RTT data + * in bytes that a client will be allowed to send when using + * one of the tickets defined by the NewSessionTicket messages. + * + * \note When resuming a session using a ticket, if the server receives more + * early data than allowed for the ticket, it terminates the connection. + * The maximum amount of 0-RTT data should thus be large enough + * to allow a minimum of early data to be exchanged. + * + * \param[in] conf The SSL configuration to use. + * \param[in] max_early_data_size The maximum amount of 0-RTT data. + * + * \warning This interface is experimental and may change without notice. + * + */ +void mbedtls_ssl_tls13_conf_max_early_data_size( + mbedtls_ssl_config *conf, uint32_t max_early_data_size); +#endif /* MBEDTLS_SSL_SRV_C */ + +#endif /* MBEDTLS_SSL_PROTO_TLS1_3 && MBEDTLS_SSL_EARLY_DATA */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/** + * \brief Set the verification callback (Optional). + * + * If set, the provided verify callback is called for each + * certificate in the peer's CRT chain, including the trusted + * root. For more information, please see the documentation of + * \c mbedtls_x509_crt_verify(). + * + * \note For per context callbacks and contexts, please use + * mbedtls_ssl_set_verify() instead. + * + * \param conf The SSL configuration to use. + * \param f_vrfy The verification callback to use during CRT verification. + * \param p_vrfy The opaque context to be passed to the callback. + */ +void mbedtls_ssl_conf_verify(mbedtls_ssl_config *conf, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy); +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +/** + * \brief Set the random number generator callback + * + * \param conf SSL configuration + * \param f_rng RNG function (mandatory) + * \param p_rng RNG parameter + */ +void mbedtls_ssl_conf_rng(mbedtls_ssl_config *conf, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief Set the debug callback + * + * The callback has the following argument: + * void * opaque context for the callback + * int debug level + * const char * file name + * int line number + * const char * message + * + * \param conf SSL configuration + * \param f_dbg debug function + * \param p_dbg debug parameter + */ +void mbedtls_ssl_conf_dbg(mbedtls_ssl_config *conf, + void (*f_dbg)(void *, int, const char *, int, const char *), + void *p_dbg); + +/** + * \brief Return the SSL configuration structure associated + * with the given SSL context. + * + * \note The pointer returned by this function is guaranteed to + * remain valid until the context is freed. + * + * \param ssl The SSL context to query. + * \return Pointer to the SSL configuration associated with \p ssl. + */ +static inline const mbedtls_ssl_config *mbedtls_ssl_context_get_config( + const mbedtls_ssl_context *ssl) +{ + return ssl->MBEDTLS_PRIVATE(conf); +} + +/** + * \brief Set the underlying BIO callbacks for write, read and + * read-with-timeout. + * + * \param ssl SSL context + * \param p_bio parameter (context) shared by BIO callbacks + * \param f_send write callback + * \param f_recv read callback + * \param f_recv_timeout blocking read callback with timeout. + * + * \note One of f_recv or f_recv_timeout can be NULL, in which case + * the other is used. If both are non-NULL, f_recv_timeout is + * used and f_recv is ignored (as if it were NULL). + * + * \note The two most common use cases are: + * - non-blocking I/O, f_recv != NULL, f_recv_timeout == NULL + * - blocking I/O, f_recv == NULL, f_recv_timeout != NULL + * + * \note For DTLS, you need to provide either a non-NULL + * f_recv_timeout callback, or a f_recv that doesn't block. + * + * \note See the documentations of \c mbedtls_ssl_send_t, + * \c mbedtls_ssl_recv_t and \c mbedtls_ssl_recv_timeout_t for + * the conventions those callbacks must follow. + * + * \note On some platforms, net_sockets.c provides + * \c mbedtls_net_send(), \c mbedtls_net_recv() and + * \c mbedtls_net_recv_timeout() that are suitable to be used + * here. + */ +void mbedtls_ssl_set_bio(mbedtls_ssl_context *ssl, + void *p_bio, + mbedtls_ssl_send_t *f_send, + mbedtls_ssl_recv_t *f_recv, + mbedtls_ssl_recv_timeout_t *f_recv_timeout); + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + +#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) + + +/** + * \brief Configure the use of the Connection ID (CID) + * extension in the next handshake. + * + * Reference: RFC 9146 (or draft-ietf-tls-dtls-connection-id-05 + * https://tools.ietf.org/html/draft-ietf-tls-dtls-connection-id-05 + * for legacy version) + * + * The DTLS CID extension allows the reliable association of + * DTLS records to DTLS connections across changes in the + * underlying transport (changed IP and Port metadata) by + * adding explicit connection identifiers (CIDs) to the + * headers of encrypted DTLS records. The desired CIDs are + * configured by the application layer and are exchanged in + * new `ClientHello` / `ServerHello` extensions during the + * handshake, where each side indicates the CID it wants the + * peer to use when writing encrypted messages. The CIDs are + * put to use once records get encrypted: the stack discards + * any incoming records that don't include the configured CID + * in their header, and adds the peer's requested CID to the + * headers of outgoing messages. + * + * This API enables or disables the use of the CID extension + * in the next handshake and sets the value of the CID to + * be used for incoming messages. + * + * \param ssl The SSL context to configure. This must be initialized. + * \param enable This value determines whether the CID extension should + * be used or not. Possible values are: + * - MBEDTLS_SSL_CID_ENABLED to enable the use of the CID. + * - MBEDTLS_SSL_CID_DISABLED (default) to disable the use + * of the CID. + * \param own_cid The address of the readable buffer holding the CID we want + * the peer to use when sending encrypted messages to us. + * This may be \c NULL if \p own_cid_len is \c 0. + * This parameter is unused if \p enable is set to + * MBEDTLS_SSL_CID_DISABLED. + * \param own_cid_len The length of \p own_cid. + * This parameter is unused if \p enable is set to + * MBEDTLS_SSL_CID_DISABLED. + * + * \note The value of \p own_cid_len must match the value of the + * \c len parameter passed to mbedtls_ssl_conf_cid() + * when configuring the ::mbedtls_ssl_config that \p ssl + * is bound to. + * + * \note This CID configuration applies to subsequent handshakes + * performed on the SSL context \p ssl, but does not trigger + * one. You still have to call `mbedtls_ssl_handshake()` + * (for the initial handshake) or `mbedtls_ssl_renegotiate()` + * (for a renegotiation handshake) explicitly after a + * successful call to this function to run the handshake. + * + * \note This call cannot guarantee that the use of the CID + * will be successfully negotiated in the next handshake, + * because the peer might not support it. Specifically: + * - On the Client, enabling the use of the CID through + * this call implies that the `ClientHello` in the next + * handshake will include the CID extension, thereby + * offering the use of the CID to the server. Only if + * the `ServerHello` contains the CID extension, too, + * the CID extension will actually be put to use. + * - On the Server, enabling the use of the CID through + * this call implies that the server will look for + * the CID extension in a `ClientHello` from the client, + * and, if present, reply with a CID extension in its + * `ServerHello`. + * + * \note To check whether the use of the CID was negotiated + * after the subsequent handshake has completed, please + * use the API mbedtls_ssl_get_peer_cid(). + * + * \warning If the use of the CID extension is enabled in this call + * and the subsequent handshake negotiates its use, Mbed TLS + * will silently drop every packet whose CID does not match + * the CID configured in \p own_cid. It is the responsibility + * of the user to adapt the underlying transport to take care + * of CID-based demultiplexing before handing datagrams to + * Mbed TLS. + * + * \return \c 0 on success. In this case, the CID configuration + * applies to the next handshake. + * \return A negative error code on failure. + */ +int mbedtls_ssl_set_cid(mbedtls_ssl_context *ssl, + int enable, + unsigned char const *own_cid, + size_t own_cid_len); + +/** + * \brief Get information about our request for usage of the CID + * extension in the current connection. + * + * \param ssl The SSL context to query. + * \param enabled The address at which to store whether the CID extension + * is requested to be used or not. If the CID is + * requested, `*enabled` is set to + * MBEDTLS_SSL_CID_ENABLED; otherwise, it is set to + * MBEDTLS_SSL_CID_DISABLED. + * \param own_cid The address of the buffer in which to store our own + * CID (if the CID extension is requested). This may be + * \c NULL in case the value of our CID isn't needed. If + * it is not \c NULL, \p own_cid_len must not be \c NULL. + * \param own_cid_len The address at which to store the size of our own CID + * (if the CID extension is requested). This is also the + * number of Bytes in \p own_cid that have been written. + * This may be \c NULL in case the length of our own CID + * isn't needed. If it is \c NULL, \p own_cid must be + * \c NULL, too. + * + *\note If we are requesting an empty CID this function sets + * `*enabled` to #MBEDTLS_SSL_CID_DISABLED (the rationale + * for this is that the resulting outcome is the + * same as if the CID extensions wasn't requested). + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_ssl_get_own_cid(mbedtls_ssl_context *ssl, + int *enabled, + unsigned char own_cid[MBEDTLS_SSL_CID_OUT_LEN_MAX], + size_t *own_cid_len); + +/** + * \brief Get information about the use of the CID extension + * in the current connection. + * + * \param ssl The SSL context to query. + * \param enabled The address at which to store whether the CID extension + * is currently in use or not. If the CID is in use, + * `*enabled` is set to MBEDTLS_SSL_CID_ENABLED; + * otherwise, it is set to MBEDTLS_SSL_CID_DISABLED. + * \param peer_cid The address of the buffer in which to store the CID + * chosen by the peer (if the CID extension is used). + * This may be \c NULL in case the value of peer CID + * isn't needed. If it is not \c NULL, \p peer_cid_len + * must not be \c NULL. + * \param peer_cid_len The address at which to store the size of the CID + * chosen by the peer (if the CID extension is used). + * This is also the number of Bytes in \p peer_cid that + * have been written. + * This may be \c NULL in case the length of the peer CID + * isn't needed. If it is \c NULL, \p peer_cid must be + * \c NULL, too. + * + * \note This applies to the state of the CID negotiated in + * the last complete handshake. If a handshake is in + * progress, this function will attempt to complete + * the handshake first. + * + * \note If CID extensions have been exchanged but both client + * and server chose to use an empty CID, this function + * sets `*enabled` to #MBEDTLS_SSL_CID_DISABLED + * (the rationale for this is that the resulting + * communication is the same as if the CID extensions + * hadn't been used). + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_ssl_get_peer_cid(mbedtls_ssl_context *ssl, + int *enabled, + unsigned char peer_cid[MBEDTLS_SSL_CID_OUT_LEN_MAX], + size_t *peer_cid_len); + +#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ + +/** + * \brief Set the Maximum Transport Unit (MTU). + * Special value: 0 means unset (no limit). + * This represents the maximum size of a datagram payload + * handled by the transport layer (usually UDP) as determined + * by the network link and stack. In practice, this controls + * the maximum size datagram the DTLS layer will pass to the + * \c f_send() callback set using \c mbedtls_ssl_set_bio(). + * + * \note The limit on datagram size is converted to a limit on + * record payload by subtracting the current overhead of + * encapsulation and encryption/authentication if any. + * + * \note This can be called at any point during the connection, for + * example when a Path Maximum Transfer Unit (PMTU) + * estimate becomes available from other sources, + * such as lower (or higher) protocol layers. + * + * \note This setting only controls the size of the packets we send, + * and does not restrict the size of the datagrams we're + * willing to receive. Client-side, you can request the + * server to use smaller records with \c + * mbedtls_ssl_conf_max_frag_len(). + * + * \note If both a MTU and a maximum fragment length have been + * configured (or negotiated with the peer), the resulting + * lower limit on record payload (see first note) is used. + * + * \note This can only be used to decrease the maximum size + * of datagrams (hence records, see first note) sent. It + * cannot be used to increase the maximum size of records over + * the limit set by #MBEDTLS_SSL_OUT_CONTENT_LEN. + * + * \note Values lower than the current record layer expansion will + * result in an error when trying to send data. + * + * \param ssl SSL context + * \param mtu Value of the path MTU in bytes + */ +void mbedtls_ssl_set_mtu(mbedtls_ssl_context *ssl, uint16_t mtu); +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/** + * \brief Set a connection-specific verification callback (optional). + * + * If set, the provided verify callback is called for each + * certificate in the peer's CRT chain, including the trusted + * root. For more information, please see the documentation of + * \c mbedtls_x509_crt_verify(). + * + * \note This call is analogous to mbedtls_ssl_conf_verify() but + * binds the verification callback and context to an SSL context + * as opposed to an SSL configuration. + * If mbedtls_ssl_conf_verify() and mbedtls_ssl_set_verify() + * are both used, mbedtls_ssl_set_verify() takes precedence. + * + * \param ssl The SSL context to use. + * \param f_vrfy The verification callback to use during CRT verification. + * \param p_vrfy The opaque context to be passed to the callback. + */ +void mbedtls_ssl_set_verify(mbedtls_ssl_context *ssl, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy); +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +/** + * \brief Set the timeout period for mbedtls_ssl_read() + * (Default: no timeout.) + * + * \param conf SSL configuration context + * \param timeout Timeout value in milliseconds. + * Use 0 for no timeout (default). + * + * \note With blocking I/O, this will only work if a non-NULL + * \c f_recv_timeout was set with \c mbedtls_ssl_set_bio(). + * With non-blocking I/O, this will only work if timer + * callbacks were set with \c mbedtls_ssl_set_timer_cb(). + * + * \note With non-blocking I/O, you may also skip this function + * altogether and handle timeouts at the application layer. + */ +void mbedtls_ssl_conf_read_timeout(mbedtls_ssl_config *conf, uint32_t timeout); + +/** + * \brief Check whether a buffer contains a valid and authentic record + * that has not been seen before. (DTLS only). + * + * This function does not change the user-visible state + * of the SSL context. Its sole purpose is to provide + * an indication of the legitimacy of an incoming record. + * + * This can be useful e.g. in distributed server environments + * using the DTLS Connection ID feature, in which connections + * might need to be passed between service instances on a change + * of peer address, but where such disruptive operations should + * only happen after the validity of incoming records has been + * confirmed. + * + * \param ssl The SSL context to use. + * \param buf The address of the buffer holding the record to be checked. + * This must be a read/write buffer of length \p buflen Bytes. + * \param buflen The length of \p buf in Bytes. + * + * \note This routine only checks whether the provided buffer begins + * with a valid and authentic record that has not been seen + * before, but does not check potential data following the + * initial record. In particular, it is possible to pass DTLS + * datagrams containing multiple records, in which case only + * the first record is checked. + * + * \note This function modifies the input buffer \p buf. If you need + * to preserve the original record, you have to maintain a copy. + * + * \return \c 0 if the record is valid and authentic and has not been + * seen before. + * \return MBEDTLS_ERR_SSL_INVALID_MAC if the check completed + * successfully but the record was found to be not authentic. + * \return MBEDTLS_ERR_SSL_INVALID_RECORD if the check completed + * successfully but the record was found to be invalid for + * a reason different from authenticity checking. + * \return MBEDTLS_ERR_SSL_UNEXPECTED_RECORD if the check completed + * successfully but the record was found to be unexpected + * in the state of the SSL context, including replayed records. + * \return Another negative error code on different kinds of failure. + * In this case, the SSL context becomes unusable and needs + * to be freed or reset before reuse. + */ +int mbedtls_ssl_check_record(mbedtls_ssl_context const *ssl, + unsigned char *buf, + size_t buflen); + +/** + * \brief Set the timer callbacks (Mandatory for DTLS.) + * + * \param ssl SSL context + * \param p_timer parameter (context) shared by timer callbacks + * \param f_set_timer set timer callback + * \param f_get_timer get timer callback. Must return: + * + * \note See the documentation of \c mbedtls_ssl_set_timer_t and + * \c mbedtls_ssl_get_timer_t for the conventions this pair of + * callbacks must follow. + * + * \note On some platforms, timing.c provides + * \c mbedtls_timing_set_delay() and + * \c mbedtls_timing_get_delay() that are suitable for using + * here, except if using an event-driven style. + * + * \note See also the "DTLS tutorial" article in our knowledge base. + * https://mbed-tls.readthedocs.io/en/latest/kb/how-to/dtls-tutorial + */ +void mbedtls_ssl_set_timer_cb(mbedtls_ssl_context *ssl, + void *p_timer, + mbedtls_ssl_set_timer_t *f_set_timer, + mbedtls_ssl_get_timer_t *f_get_timer); + +#if defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Set the certificate selection callback (server-side only). + * + * If set, the callback is always called for each handshake, + * after `ClientHello` processing has finished. + * + * \param conf The SSL configuration to register the callback with. + * \param f_cert_cb The callback for selecting server certificate after + * `ClientHello` processing has finished. + */ +static inline void mbedtls_ssl_conf_cert_cb(mbedtls_ssl_config *conf, + mbedtls_ssl_hs_cb_t f_cert_cb) +{ + conf->MBEDTLS_PRIVATE(f_cert_cb) = f_cert_cb; +} +#endif /* MBEDTLS_SSL_SRV_C */ + +/** + * \brief Callback type: generate and write session ticket + * + * \note This describes what a callback implementation should do. + * This callback should generate an encrypted and + * authenticated ticket for the session and write it to the + * output buffer. Here, ticket means the opaque ticket part + * of the NewSessionTicket structure of RFC 5077. + * + * \param p_ticket Context for the callback + * \param session SSL session to be written in the ticket + * \param start Start of the output buffer + * \param end End of the output buffer + * \param tlen On exit, holds the length written + * \param lifetime On exit, holds the lifetime of the ticket in seconds + * + * \return 0 if successful, or + * a specific MBEDTLS_ERR_XXX code. + */ +typedef int mbedtls_ssl_ticket_write_t(void *p_ticket, + const mbedtls_ssl_session *session, + unsigned char *start, + const unsigned char *end, + size_t *tlen, + uint32_t *lifetime); + +/** + * \brief Callback type: parse and load session ticket + * + * \note This describes what a callback implementation should do. + * This callback should parse a session ticket as generated + * by the corresponding mbedtls_ssl_ticket_write_t function, + * and, if the ticket is authentic and valid, load the + * session. + * + * \note The implementation is allowed to modify the first len + * bytes of the input buffer, eg to use it as a temporary + * area for the decrypted ticket contents. + * + * \param p_ticket Context for the callback + * \param session SSL session to be loaded + * \param buf Start of the buffer containing the ticket + * \param len Length of the ticket. + * + * \return 0 if successful, or + * MBEDTLS_ERR_SSL_INVALID_MAC if not authentic, or + * MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED if expired, or + * any other non-zero code for other failures. + */ +typedef int mbedtls_ssl_ticket_parse_t(void *p_ticket, + mbedtls_ssl_session *session, + unsigned char *buf, + size_t len); + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Configure SSL session ticket callbacks (server only). + * (Default: none.) + * + * \note On server, session tickets are enabled by providing + * non-NULL callbacks. + * + * \note On client, use \c mbedtls_ssl_conf_session_tickets(). + * + * \param conf SSL configuration context + * \param f_ticket_write Callback for writing a ticket + * \param f_ticket_parse Callback for parsing a ticket + * \param p_ticket Context shared by the two callbacks + */ +void mbedtls_ssl_conf_session_tickets_cb(mbedtls_ssl_config *conf, + mbedtls_ssl_ticket_write_t *f_ticket_write, + mbedtls_ssl_ticket_parse_t *f_ticket_parse, + void *p_ticket); +#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_SRV_C */ + +/** + * \brief Configure a key export callback. + * (Default: none.) + * + * This API can be used for two purposes: + * - Debugging: Use this API to e.g. generate an NSSKeylog + * file and use it to inspect encrypted traffic in tools + * such as Wireshark. + * - Application-specific export: Use this API to implement + * key exporters, e.g. for EAP-TLS or DTLS-SRTP. + * + * + * \param ssl The SSL context to which the export + * callback should be attached. + * \param f_export_keys The callback for the key export. + * \param p_export_keys The opaque context pointer to be passed to the + * callback \p f_export_keys. + */ +void mbedtls_ssl_set_export_keys_cb(mbedtls_ssl_context *ssl, + mbedtls_ssl_export_keys_t *f_export_keys, + void *p_export_keys); + +/** \brief Set the user data in an SSL configuration to a pointer. + * + * You can retrieve this value later with mbedtls_ssl_conf_get_user_data_p(). + * + * \note The library stores \c p without accessing it. It is the responsibility + * of the caller to ensure that the pointer remains valid. + * + * \param conf The SSL configuration context to modify. + * \param p The new value of the user data. + */ +static inline void mbedtls_ssl_conf_set_user_data_p( + mbedtls_ssl_config *conf, + void *p) +{ + conf->MBEDTLS_PRIVATE(user_data).p = p; +} + +/** \brief Set the user data in an SSL configuration to an integer. + * + * You can retrieve this value later with mbedtls_ssl_conf_get_user_data_n(). + * + * \param conf The SSL configuration context to modify. + * \param n The new value of the user data. + */ +static inline void mbedtls_ssl_conf_set_user_data_n( + mbedtls_ssl_config *conf, + uintptr_t n) +{ + conf->MBEDTLS_PRIVATE(user_data).n = n; +} + +/** \brief Retrieve the user data in an SSL configuration as a pointer. + * + * This is the value last set with mbedtls_ssl_conf_set_user_data_p(), or + * \c NULL if mbedtls_ssl_conf_set_user_data_p() has not previously been + * called. The value is undefined if mbedtls_ssl_conf_set_user_data_n() has + * been called without a subsequent call to mbedtls_ssl_conf_set_user_data_p(). + * + * \param conf The SSL configuration context to modify. + * \return The current value of the user data. + */ +static inline void *mbedtls_ssl_conf_get_user_data_p( + mbedtls_ssl_config *conf) +{ + return conf->MBEDTLS_PRIVATE(user_data).p; +} + +/** \brief Retrieve the user data in an SSL configuration as an integer. + * + * This is the value last set with mbedtls_ssl_conf_set_user_data_n(), or + * \c 0 if mbedtls_ssl_conf_set_user_data_n() has not previously been + * called. The value is undefined if mbedtls_ssl_conf_set_user_data_p() has + * been called without a subsequent call to mbedtls_ssl_conf_set_user_data_n(). + * + * \param conf The SSL configuration context to modify. + * \return The current value of the user data. + */ +static inline uintptr_t mbedtls_ssl_conf_get_user_data_n( + mbedtls_ssl_config *conf) +{ + return conf->MBEDTLS_PRIVATE(user_data).n; +} + +/** \brief Set the user data in an SSL context to a pointer. + * + * You can retrieve this value later with mbedtls_ssl_get_user_data_p(). + * + * \note The library stores \c p without accessing it. It is the responsibility + * of the caller to ensure that the pointer remains valid. + * + * \param ssl The SSL context to modify. + * \param p The new value of the user data. + */ +static inline void mbedtls_ssl_set_user_data_p( + mbedtls_ssl_context *ssl, + void *p) +{ + ssl->MBEDTLS_PRIVATE(user_data).p = p; +} + +/** \brief Set the user data in an SSL context to an integer. + * + * You can retrieve this value later with mbedtls_ssl_get_user_data_n(). + * + * \param ssl The SSL context to modify. + * \param n The new value of the user data. + */ +static inline void mbedtls_ssl_set_user_data_n( + mbedtls_ssl_context *ssl, + uintptr_t n) +{ + ssl->MBEDTLS_PRIVATE(user_data).n = n; +} + +/** \brief Retrieve the user data in an SSL context as a pointer. + * + * This is the value last set with mbedtls_ssl_set_user_data_p(), or + * \c NULL if mbedtls_ssl_set_user_data_p() has not previously been + * called. The value is undefined if mbedtls_ssl_set_user_data_n() has + * been called without a subsequent call to mbedtls_ssl_set_user_data_p(). + * + * \param ssl The SSL context to modify. + * \return The current value of the user data. + */ +static inline void *mbedtls_ssl_get_user_data_p( + mbedtls_ssl_context *ssl) +{ + return ssl->MBEDTLS_PRIVATE(user_data).p; +} + +/** \brief Retrieve the user data in an SSL context as an integer. + * + * This is the value last set with mbedtls_ssl_set_user_data_n(), or + * \c 0 if mbedtls_ssl_set_user_data_n() has not previously been + * called. The value is undefined if mbedtls_ssl_set_user_data_p() has + * been called without a subsequent call to mbedtls_ssl_set_user_data_n(). + * + * \param ssl The SSL context to modify. + * \return The current value of the user data. + */ +static inline uintptr_t mbedtls_ssl_get_user_data_n( + mbedtls_ssl_context *ssl) +{ + return ssl->MBEDTLS_PRIVATE(user_data).n; +} + +#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) +/** + * \brief Configure asynchronous private key operation callbacks. + * + * \param conf SSL configuration context + * \param f_async_sign Callback to start a signature operation. See + * the description of ::mbedtls_ssl_async_sign_t + * for more information. This may be \c NULL if the + * external processor does not support any signature + * operation; in this case the private key object + * associated with the certificate will be used. + * \param f_async_decrypt Callback to start a decryption operation. See + * the description of ::mbedtls_ssl_async_decrypt_t + * for more information. This may be \c NULL if the + * external processor does not support any decryption + * operation; in this case the private key object + * associated with the certificate will be used. + * \param f_async_resume Callback to resume an asynchronous operation. See + * the description of ::mbedtls_ssl_async_resume_t + * for more information. This may not be \c NULL unless + * \p f_async_sign and \p f_async_decrypt are both + * \c NULL. + * \param f_async_cancel Callback to cancel an asynchronous operation. See + * the description of ::mbedtls_ssl_async_cancel_t + * for more information. This may be \c NULL if + * no cleanup is needed. + * \param config_data A pointer to configuration data which can be + * retrieved with + * mbedtls_ssl_conf_get_async_config_data(). The + * library stores this value without dereferencing it. + */ +void mbedtls_ssl_conf_async_private_cb(mbedtls_ssl_config *conf, + mbedtls_ssl_async_sign_t *f_async_sign, + mbedtls_ssl_async_decrypt_t *f_async_decrypt, + mbedtls_ssl_async_resume_t *f_async_resume, + mbedtls_ssl_async_cancel_t *f_async_cancel, + void *config_data); + +/** + * \brief Retrieve the configuration data set by + * mbedtls_ssl_conf_async_private_cb(). + * + * \param conf SSL configuration context + * \return The configuration data set by + * mbedtls_ssl_conf_async_private_cb(). + */ +void *mbedtls_ssl_conf_get_async_config_data(const mbedtls_ssl_config *conf); + +/** + * \brief Retrieve the asynchronous operation user context. + * + * \note This function may only be called while a handshake + * is in progress. + * + * \param ssl The SSL context to access. + * + * \return The asynchronous operation user context that was last + * set during the current handshake. If + * mbedtls_ssl_set_async_operation_data() has not yet been + * called during the current handshake, this function returns + * \c NULL. + */ +void *mbedtls_ssl_get_async_operation_data(const mbedtls_ssl_context *ssl); + +/** + * \brief Retrieve the asynchronous operation user context. + * + * \note This function may only be called while a handshake + * is in progress. + * + * \param ssl The SSL context to access. + * \param ctx The new value of the asynchronous operation user context. + * Call mbedtls_ssl_get_async_operation_data() later during the + * same handshake to retrieve this value. + */ +void mbedtls_ssl_set_async_operation_data(mbedtls_ssl_context *ssl, + void *ctx); +#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ + +/** + * \brief Callback type: generate a cookie + * + * \param ctx Context for the callback + * \param p Buffer to write to, + * must be updated to point right after the cookie + * \param end Pointer to one past the end of the output buffer + * \param info Client ID info that was passed to + * \c mbedtls_ssl_set_client_transport_id() + * \param ilen Length of info in bytes + * + * \return The callback must return 0 on success, + * or a negative error code. + */ +typedef int mbedtls_ssl_cookie_write_t(void *ctx, + unsigned char **p, unsigned char *end, + const unsigned char *info, size_t ilen); + +/** + * \brief Callback type: verify a cookie + * + * \param ctx Context for the callback + * \param cookie Cookie to verify + * \param clen Length of cookie + * \param info Client ID info that was passed to + * \c mbedtls_ssl_set_client_transport_id() + * \param ilen Length of info in bytes + * + * \return The callback must return 0 if cookie is valid, + * or a negative error code. + */ +typedef int mbedtls_ssl_cookie_check_t(void *ctx, + const unsigned char *cookie, size_t clen, + const unsigned char *info, size_t ilen); + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Register callbacks for DTLS cookies + * (Server only. DTLS only.) + * + * Default: dummy callbacks that fail, in order to force you to + * register working callbacks (and initialize their context). + * + * To disable HelloVerifyRequest, register NULL callbacks. + * + * \warning Disabling hello verification allows your server to be used + * for amplification in DoS attacks against other hosts. + * Only disable if you known this can't happen in your + * particular environment. + * + * \note See comments on \c mbedtls_ssl_handshake() about handling + * the MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED that is expected + * on the first handshake attempt when this is enabled. + * + * \note This is also necessary to handle client reconnection from + * the same port as described in RFC 6347 section 4.2.8 (only + * the variant with cookies is supported currently). See + * comments on \c mbedtls_ssl_read() for details. + * + * \param conf SSL configuration + * \param f_cookie_write Cookie write callback + * \param f_cookie_check Cookie check callback + * \param p_cookie Context for both callbacks + */ +void mbedtls_ssl_conf_dtls_cookies(mbedtls_ssl_config *conf, + mbedtls_ssl_cookie_write_t *f_cookie_write, + mbedtls_ssl_cookie_check_t *f_cookie_check, + void *p_cookie); + +/** + * \brief Set client's transport-level identification info. + * (Server only. DTLS only.) + * + * This is usually the IP address (and port), but could be + * anything identify the client depending on the underlying + * network stack. Used for HelloVerifyRequest with DTLS. + * This is *not* used to route the actual packets. + * + * \param ssl SSL context + * \param info Transport-level info identifying the client (eg IP + port) + * \param ilen Length of info in bytes + * + * \note An internal copy is made, so the info buffer can be reused. + * + * \return 0 on success, + * MBEDTLS_ERR_SSL_BAD_INPUT_DATA if used on client, + * MBEDTLS_ERR_SSL_ALLOC_FAILED if out of memory. + */ +int mbedtls_ssl_set_client_transport_id(mbedtls_ssl_context *ssl, + const unsigned char *info, + size_t ilen); + +#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */ + +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) +/** + * \brief Enable or disable anti-replay protection for DTLS. + * (DTLS only, no effect on TLS.) + * Default: enabled. + * + * \param conf SSL configuration + * \param mode MBEDTLS_SSL_ANTI_REPLAY_ENABLED or MBEDTLS_SSL_ANTI_REPLAY_DISABLED. + * + * \warning Disabling this is a security risk unless the application + * protocol handles duplicated packets in a safe way. You + * should not disable this without careful consideration. + * However, if your application already detects duplicated + * packets and needs information about them to adjust its + * transmission strategy, then you'll want to disable this. + */ +void mbedtls_ssl_conf_dtls_anti_replay(mbedtls_ssl_config *conf, char mode); +#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */ + +/** + * \brief Set a limit on the number of records with a bad MAC + * before terminating the connection. + * (DTLS only, no effect on TLS.) + * Default: 0 (disabled). + * + * \param conf SSL configuration + * \param limit Limit, or 0 to disable. + * + * \note If the limit is N, then the connection is terminated when + * the Nth non-authentic record is seen. + * + * \note Records with an invalid header are not counted, only the + * ones going through the authentication-decryption phase. + * + * \note This is a security trade-off related to the fact that it's + * often relatively easy for an active attacker to inject UDP + * datagrams. On one hand, setting a low limit here makes it + * easier for such an attacker to forcibly terminated a + * connection. On the other hand, a high limit or no limit + * might make us waste resources checking authentication on + * many bogus packets. + */ +void mbedtls_ssl_conf_dtls_badmac_limit(mbedtls_ssl_config *conf, unsigned limit); + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + +/** + * \brief Allow or disallow packing of multiple handshake records + * within a single datagram. + * + * \param ssl The SSL context to configure. + * \param allow_packing This determines whether datagram packing may + * be used or not. A value of \c 0 means that every + * record will be sent in a separate datagram; a + * value of \c 1 means that, if space permits, + * multiple handshake messages (including CCS) belonging to + * a single flight may be packed within a single datagram. + * + * \note This is enabled by default and should only be disabled + * for test purposes, or if datagram packing causes + * interoperability issues with peers that don't support it. + * + * \note Allowing datagram packing reduces the network load since + * there's less overhead if multiple messages share the same + * datagram. Also, it increases the handshake efficiency + * since messages belonging to a single datagram will not + * be reordered in transit, and so future message buffering + * or flight retransmission (if no buffering is used) as + * means to deal with reordering are needed less frequently. + * + * \note Application records are not affected by this option and + * are currently always sent in separate datagrams. + * + */ +void mbedtls_ssl_set_datagram_packing(mbedtls_ssl_context *ssl, + unsigned allow_packing); + +/** + * \brief Set retransmit timeout values for the DTLS handshake. + * (DTLS only, no effect on TLS.) + * + * \param conf SSL configuration + * \param min Initial timeout value in milliseconds. + * Default: 1000 (1 second). + * \param max Maximum timeout value in milliseconds. + * Default: 60000 (60 seconds). + * + * \note Default values are from RFC 6347 section 4.2.4.1. + * + * \note The 'min' value should typically be slightly above the + * expected round-trip time to your peer, plus whatever time + * it takes for the peer to process the message. For example, + * if your RTT is about 600ms and you peer needs up to 1s to + * do the cryptographic operations in the handshake, then you + * should set 'min' slightly above 1600. Lower values of 'min' + * might cause spurious resends which waste network resources, + * while larger value of 'min' will increase overall latency + * on unreliable network links. + * + * \note The more unreliable your network connection is, the larger + * your max / min ratio needs to be in order to achieve + * reliable handshakes. + * + * \note Messages are retransmitted up to log2(ceil(max/min)) times. + * For example, if min = 1s and max = 5s, the retransmit plan + * goes: send ... 1s -> resend ... 2s -> resend ... 4s -> + * resend ... 5s -> give up and return a timeout error. + */ +void mbedtls_ssl_conf_handshake_timeout(mbedtls_ssl_config *conf, uint32_t min, uint32_t max); +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + +#if defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Set the session cache callbacks (server-side only) + * If not set, no session resuming is done (except if session + * tickets are enabled too). + * + * The session cache has the responsibility to check for stale + * entries based on timeout. See RFC 5246 for recommendations. + * + * Warning: session.peer_cert is cleared by the SSL/TLS layer on + * connection shutdown, so do not cache the pointer! Either set + * it to NULL or make a full copy of the certificate. + * + * The get callback is called once during the initial handshake + * to enable session resuming. The get function has the + * following parameters: (void *parameter, mbedtls_ssl_session *session) + * If a valid entry is found, it should fill the master of + * the session object with the cached values and return 0, + * return 1 otherwise. Optionally peer_cert can be set as well + * if it is properly present in cache entry. + * + * The set callback is called once during the initial handshake + * to enable session resuming after the entire handshake has + * been finished. The set function has the following parameters: + * (void *parameter, const mbedtls_ssl_session *session). The function + * should create a cache entry for future retrieval based on + * the data in the session structure and should keep in mind + * that the mbedtls_ssl_session object presented (and all its referenced + * data) is cleared by the SSL/TLS layer when the connection is + * terminated. It is recommended to add metadata to determine if + * an entry is still valid in the future. Return 0 if + * successfully cached, return 1 otherwise. + * + * \param conf SSL configuration + * \param p_cache parameter (context) for both callbacks + * \param f_get_cache session get callback + * \param f_set_cache session set callback + */ +void mbedtls_ssl_conf_session_cache(mbedtls_ssl_config *conf, + void *p_cache, + mbedtls_ssl_cache_get_t *f_get_cache, + mbedtls_ssl_cache_set_t *f_set_cache); +#endif /* MBEDTLS_SSL_SRV_C */ + +#if defined(MBEDTLS_SSL_CLI_C) +/** + * \brief Load a session for session resumption. + * + * Sessions loaded through this call will be considered + * for session resumption in the next handshake. + * + * \note Even if this call succeeds, it is not guaranteed that + * the next handshake will indeed be shortened through the + * use of session resumption: The server is always free + * to reject any attempt for resumption and fall back to + * a full handshake. + * + * \note This function can handle a variety of mechanisms for session + * resumption: For TLS 1.2, both session ID-based resumption and + * ticket-based resumption will be considered. For TLS 1.3, + * once implemented, sessions equate to tickets, and loading + * one or more sessions via this call will lead to their + * corresponding tickets being advertised as resumption PSKs + * by the client. + * + * \note Calling this function multiple times will only be useful + * once TLS 1.3 is supported. For TLS 1.2 connections, this + * function should be called at most once. + * + * \param ssl The SSL context representing the connection which should + * be attempted to be setup using session resumption. This + * must be initialized via mbedtls_ssl_init() and bound to + * an SSL configuration via mbedtls_ssl_setup(), but + * the handshake must not yet have been started. + * \param session The session to be considered for session resumption. + * This must be a session previously exported via + * mbedtls_ssl_get_session(), and potentially serialized and + * deserialized through mbedtls_ssl_session_save() and + * mbedtls_ssl_session_load() in the meantime. + * + * \return \c 0 if successful. + * \return \c MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE if the session + * could not be loaded because of an implementation limitation. + * This error is non-fatal, and has no observable effect on + * the SSL context or the session that was attempted to be loaded. + * \return Another negative error code on other kinds of failure. + * + * \sa mbedtls_ssl_get_session() + * \sa mbedtls_ssl_session_load() + */ +int mbedtls_ssl_set_session(mbedtls_ssl_context *ssl, const mbedtls_ssl_session *session); +#endif /* MBEDTLS_SSL_CLI_C */ + +/** + * \brief Load serialized session data into a session structure. + * On client, this can be used for loading saved sessions + * before resuming them with mbedtls_ssl_set_session(). + * On server, this can be used for alternative implementations + * of session cache or session tickets. + * + * \warning If a peer certificate chain is associated with the session, + * the serialized state will only contain the peer's + * end-entity certificate and the result of the chain + * verification (unless verification was disabled), but not + * the rest of the chain. + * + * \see mbedtls_ssl_session_save() + * \see mbedtls_ssl_set_session() + * + * \param session The session structure to be populated. It must have been + * initialised with mbedtls_ssl_session_init() but not + * populated yet. + * \param buf The buffer holding the serialized session data. It must be a + * readable buffer of at least \p len bytes. + * \param len The size of the serialized data in bytes. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_SSL_ALLOC_FAILED if memory allocation failed. + * \return #MBEDTLS_ERR_SSL_BAD_INPUT_DATA if input data is invalid. + * \return #MBEDTLS_ERR_SSL_VERSION_MISMATCH if the serialized data + * was generated in a different version or configuration of + * Mbed TLS. + * \return Another negative value for other kinds of errors (for + * example, unsupported features in the embedded certificate). + */ +int mbedtls_ssl_session_load(mbedtls_ssl_session *session, + const unsigned char *buf, + size_t len); + +/** + * \brief Save session structure as serialized data in a buffer. + * On client, this can be used for saving session data, + * potentially in non-volatile storage, for resuming later. + * On server, this can be used for alternative implementations + * of session cache or session tickets. + * + * \see mbedtls_ssl_session_load() + * + * \param session The session structure to be saved. + * \param buf The buffer to write the serialized data to. It must be a + * writeable buffer of at least \p buf_len bytes, or may be \c + * NULL if \p buf_len is \c 0. + * \param buf_len The number of bytes available for writing in \p buf. + * \param olen The size in bytes of the data that has been or would have + * been written. It must point to a valid \c size_t. + * + * \note \p olen is updated to the correct value regardless of + * whether \p buf_len was large enough. This makes it possible + * to determine the necessary size by calling this function + * with \p buf set to \c NULL and \p buf_len to \c 0. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL if \p buf is too small. + */ +int mbedtls_ssl_session_save(const mbedtls_ssl_session *session, + unsigned char *buf, + size_t buf_len, + size_t *olen); + +/** + * \brief Set the list of allowed ciphersuites and the preference + * order. First in the list has the highest preference. + * + * For TLS 1.2, the notion of ciphersuite determines both + * the key exchange mechanism and the suite of symmetric + * algorithms to be used during and after the handshake. + * + * For TLS 1.3 (in development), the notion of ciphersuite + * only determines the suite of symmetric algorithms to be + * used during and after the handshake, while key exchange + * mechanisms are configured separately. + * + * In Mbed TLS, ciphersuites for both TLS 1.2 and TLS 1.3 + * are configured via this function. For users of TLS 1.3, + * there will be separate API for the configuration of key + * exchange mechanisms. + * + * The list of ciphersuites passed to this function may + * contain a mixture of TLS 1.2 and TLS 1.3 ciphersuite + * identifiers. This is useful if negotiation of TLS 1.3 + * should be attempted, but a fallback to TLS 1.2 would + * be tolerated. + * + * \note By default, the server chooses its preferred + * ciphersuite among those that the client supports. If + * mbedtls_ssl_conf_preference_order() is called to prefer + * the client's preferences, the server instead chooses + * the client's preferred ciphersuite among those that + * the server supports. + * + * \warning The ciphersuites array \p ciphersuites is not copied. + * It must remain valid for the lifetime of the SSL + * configuration \p conf. + * + * \param conf The SSL configuration to modify. + * \param ciphersuites A 0-terminated list of IANA identifiers of supported + * ciphersuites, accessible through \c MBEDTLS_TLS_XXX + * and \c MBEDTLS_TLS1_3_XXX macros defined in + * ssl_ciphersuites.h. + */ +void mbedtls_ssl_conf_ciphersuites(mbedtls_ssl_config *conf, + const int *ciphersuites); + +#if defined(MBEDTLS_SSL_PROTO_TLS1_3) +/** + * \brief Set the supported key exchange modes for TLS 1.3 connections. + * + * In contrast to TLS 1.2, the ciphersuite concept in TLS 1.3 does not + * include the choice of key exchange mechanism. It is therefore not + * covered by the API mbedtls_ssl_conf_ciphersuites(). See the + * documentation of mbedtls_ssl_conf_ciphersuites() for more + * information on the ciphersuite concept in TLS 1.2 and TLS 1.3. + * + * The present function is specific to TLS 1.3 and allows users to + * configure the set of supported key exchange mechanisms in TLS 1.3. + * + * \param conf The SSL configuration the change should apply to. + * \param kex_modes A bitwise combination of one or more of the following: + * - MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK + * This flag enables pure-PSK key exchanges. + * - MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL + * This flag enables combined PSK-ephemeral key exchanges. + * - MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL + * This flag enables pure-ephemeral key exchanges. + * For convenience, the following pre-defined macros are + * available for combinations of the above: + * - MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_ALL + * Includes all of pure-PSK, PSK-ephemeral and pure-ephemeral. + * - MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ALL + * Includes both pure-PSK and combined PSK-ephemeral + * key exchanges, but excludes pure-ephemeral key exchanges. + * - MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ALL + * Includes both pure-ephemeral and combined PSK-ephemeral + * key exchanges. + * + * \note If a PSK-based key exchange mode shall be supported, applications + * must also use the APIs mbedtls_ssl_conf_psk() or + * mbedtls_ssl_conf_psk_cb() or mbedtls_ssl_conf_psk_opaque() + * to configure the PSKs to be used. + * + * \note If a pure-ephemeral key exchange mode shall be supported, + * server-side applications must also provide a certificate via + * mbedtls_ssl_conf_own_cert(). + * + */ + +void mbedtls_ssl_conf_tls13_key_exchange_modes(mbedtls_ssl_config *conf, + const int kex_modes); +#endif /* MBEDTLS_SSL_PROTO_TLS1_3 */ + +#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) +#define MBEDTLS_SSL_UNEXPECTED_CID_IGNORE 0 +#define MBEDTLS_SSL_UNEXPECTED_CID_FAIL 1 +/** + * \brief Specify the length of Connection IDs for incoming + * encrypted DTLS records, as well as the behaviour + * on unexpected CIDs. + * + * By default, the CID length is set to \c 0, + * and unexpected CIDs are silently ignored. + * + * \param conf The SSL configuration to modify. + * \param len The length in Bytes of the CID fields in encrypted + * DTLS records using the CID mechanism. This must + * not be larger than #MBEDTLS_SSL_CID_OUT_LEN_MAX. + * \param ignore_other_cids This determines the stack's behaviour when + * receiving a record with an unexpected CID. + * Possible values are: + * - #MBEDTLS_SSL_UNEXPECTED_CID_IGNORE + * In this case, the record is silently ignored. + * - #MBEDTLS_SSL_UNEXPECTED_CID_FAIL + * In this case, the stack fails with the specific + * error code #MBEDTLS_ERR_SSL_UNEXPECTED_CID. + * + * \note The CID specification allows implementations to either + * use a common length for all incoming connection IDs or + * allow variable-length incoming IDs. Mbed TLS currently + * requires a common length for all connections sharing the + * same SSL configuration; this allows simpler parsing of + * record headers. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_SSL_BAD_INPUT_DATA if \p len + * is too large. + */ +int mbedtls_ssl_conf_cid(mbedtls_ssl_config *conf, size_t len, + int ignore_other_cids); +#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/** + * \brief Set the X.509 security profile used for verification + * + * \note The restrictions are enforced for all certificates in the + * chain. However, signatures in the handshake are not covered + * by this setting but by \b mbedtls_ssl_conf_sig_hashes(). + * + * \param conf SSL configuration + * \param profile Profile to use + */ +void mbedtls_ssl_conf_cert_profile(mbedtls_ssl_config *conf, + const mbedtls_x509_crt_profile *profile); + +/** + * \brief Set the data required to verify peer certificate + * + * \note See \c mbedtls_x509_crt_verify() for notes regarding the + * parameters ca_chain (maps to trust_ca for that function) + * and ca_crl. + * + * \param conf SSL configuration + * \param ca_chain trusted CA chain (meaning all fully trusted top-level CAs) + * \param ca_crl trusted CA CRLs + */ +void mbedtls_ssl_conf_ca_chain(mbedtls_ssl_config *conf, + mbedtls_x509_crt *ca_chain, + mbedtls_x509_crl *ca_crl); + +#if defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED) +/** + * \brief Set DN hints sent to client in CertificateRequest message + * + * \note If not set, subject distinguished names (DNs) are taken + * from \c mbedtls_ssl_conf_ca_chain() + * or \c mbedtls_ssl_set_hs_ca_chain()) + * + * \param conf SSL configuration + * \param crt crt chain whose subject DNs are issuer DNs of client certs + * from which the client should select client peer certificate. + */ +static inline +void mbedtls_ssl_conf_dn_hints(mbedtls_ssl_config *conf, + const mbedtls_x509_crt *crt) +{ + conf->MBEDTLS_PRIVATE(dn_hints) = crt; +} +#endif /* MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */ + +#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) +/** + * \brief Set the trusted certificate callback. + * + * This API allows to register the set of trusted certificates + * through a callback, instead of a linked list as configured + * by mbedtls_ssl_conf_ca_chain(). + * + * This is useful for example in contexts where a large number + * of CAs are used, and the inefficiency of maintaining them + * in a linked list cannot be tolerated. It is also useful when + * the set of trusted CAs needs to be modified frequently. + * + * See the documentation of `mbedtls_x509_crt_ca_cb_t` for + * more information. + * + * \param conf The SSL configuration to register the callback with. + * \param f_ca_cb The trusted certificate callback to use when verifying + * certificate chains. + * \param p_ca_cb The context to be passed to \p f_ca_cb (for example, + * a reference to a trusted CA database). + * + * \note This API is incompatible with mbedtls_ssl_conf_ca_chain(): + * Any call to this function overwrites the values set through + * earlier calls to mbedtls_ssl_conf_ca_chain() or + * mbedtls_ssl_conf_ca_cb(). + * + * \note This API is incompatible with CA indication in + * CertificateRequest messages: A server-side SSL context which + * is bound to an SSL configuration that uses a CA callback + * configured via mbedtls_ssl_conf_ca_cb(), and which requires + * client authentication, will send an empty CA list in the + * corresponding CertificateRequest message. + * + * \note This API is incompatible with mbedtls_ssl_set_hs_ca_chain(): + * If an SSL context is bound to an SSL configuration which uses + * CA callbacks configured via mbedtls_ssl_conf_ca_cb(), then + * calls to mbedtls_ssl_set_hs_ca_chain() have no effect. + * + * \note The use of this API disables the use of restartable ECC + * during X.509 CRT signature verification (but doesn't affect + * other uses). + * + * \warning This API is incompatible with the use of CRLs. Any call to + * mbedtls_ssl_conf_ca_cb() unsets CRLs configured through + * earlier calls to mbedtls_ssl_conf_ca_chain(). + * + * \warning In multi-threaded environments, the callback \p f_ca_cb + * must be thread-safe, and it is the user's responsibility + * to guarantee this (for example through a mutex + * contained in the callback context pointed to by \p p_ca_cb). + */ +void mbedtls_ssl_conf_ca_cb(mbedtls_ssl_config *conf, + mbedtls_x509_crt_ca_cb_t f_ca_cb, + void *p_ca_cb); +#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ + +/** + * \brief Set own certificate chain and private key + * + * \note own_cert should contain in order from the bottom up your + * certificate chain. The top certificate (self-signed) + * can be omitted. + * + * \note On server, this function can be called multiple times to + * provision more than one cert/key pair (eg one ECDSA, one + * RSA with SHA-256, one RSA with SHA-1). An adequate + * certificate will be selected according to the client's + * advertised capabilities. In case multiple certificates are + * adequate, preference is given to the one set by the first + * call to this function, then second, etc. + * + * \note On client, only the first call has any effect. That is, + * only one client certificate can be provisioned. The + * server's preferences in its CertificateRequest message will + * be ignored and our only cert will be sent regardless of + * whether it matches those preferences - the server can then + * decide what it wants to do with it. + * + * \note The provided \p pk_key needs to match the public key in the + * first certificate in \p own_cert, or all handshakes using + * that certificate will fail. It is your responsibility + * to ensure that; this function will not perform any check. + * You may use mbedtls_pk_check_pair() in order to perform + * this check yourself, but be aware that this function can + * be computationally expensive on some key types. + * + * \param conf SSL configuration + * \param own_cert own public certificate chain + * \param pk_key own private key + * + * \return 0 on success or MBEDTLS_ERR_SSL_ALLOC_FAILED + */ +int mbedtls_ssl_conf_own_cert(mbedtls_ssl_config *conf, + mbedtls_x509_crt *own_cert, + mbedtls_pk_context *pk_key); +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_SSL_HANDSHAKE_WITH_PSK_ENABLED) +/** + * \brief Configure pre-shared keys (PSKs) and their + * identities to be used in PSK-based ciphersuites. + * + * Only one PSK can be registered, through either + * mbedtls_ssl_conf_psk() or mbedtls_ssl_conf_psk_opaque(). + * If you attempt to register more than one PSK, this function + * fails, though this may change in future versions, which + * may add support for multiple PSKs. + * + * \note This is mainly useful for clients. Servers will usually + * want to use \c mbedtls_ssl_conf_psk_cb() instead. + * + * \note A PSK set by \c mbedtls_ssl_set_hs_psk() in the PSK callback + * takes precedence over a PSK configured by this function. + * + * \param conf The SSL configuration to register the PSK with. + * \param psk The pointer to the pre-shared key to use. + * \param psk_len The length of the pre-shared key in bytes. + * \param psk_identity The pointer to the pre-shared key identity. + * \param psk_identity_len The length of the pre-shared key identity + * in bytes. + * + * \note The PSK and its identity are copied internally and + * hence need not be preserved by the caller for the lifetime + * of the SSL configuration. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE if no more PSKs + * can be configured. In this case, the old PSK(s) remain intact. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ssl_conf_psk(mbedtls_ssl_config *conf, + const unsigned char *psk, size_t psk_len, + const unsigned char *psk_identity, size_t psk_identity_len); + +#if defined(MBEDTLS_USE_PSA_CRYPTO) +/** + * \brief Configure one or more opaque pre-shared keys (PSKs) and + * their identities to be used in PSK-based ciphersuites. + * + * Only one PSK can be registered, through either + * mbedtls_ssl_conf_psk() or mbedtls_ssl_conf_psk_opaque(). + * If you attempt to register more than one PSK, this function + * fails, though this may change in future versions, which + * may add support for multiple PSKs. + * + * \note This is mainly useful for clients. Servers will usually + * want to use \c mbedtls_ssl_conf_psk_cb() instead. + * + * \note An opaque PSK set by \c mbedtls_ssl_set_hs_psk_opaque() in + * the PSK callback takes precedence over an opaque PSK + * configured by this function. + * + * \param conf The SSL configuration to register the PSK with. + * \param psk The identifier of the key slot holding the PSK. + * Until \p conf is destroyed or this function is successfully + * called again, the key slot \p psk must be populated with a + * key of type PSA_ALG_CATEGORY_KEY_DERIVATION whose policy + * allows its use for the key derivation algorithm applied + * in the handshake. + * \param psk_identity The pointer to the pre-shared key identity. + * \param psk_identity_len The length of the pre-shared key identity + * in bytes. + * + * \note The PSK identity hint is copied internally and hence need + * not be preserved by the caller for the lifetime of the + * SSL configuration. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE if no more PSKs + * can be configured. In this case, the old PSK(s) remain intact. + * \return Another negative error code on other kinds of failure. + */ +int mbedtls_ssl_conf_psk_opaque(mbedtls_ssl_config *conf, + mbedtls_svc_key_id_t psk, + const unsigned char *psk_identity, + size_t psk_identity_len); +#endif /* MBEDTLS_USE_PSA_CRYPTO */ + +/** + * \brief Set the pre-shared Key (PSK) for the current handshake. + * + * \note This should only be called inside the PSK callback, + * i.e. the function passed to \c mbedtls_ssl_conf_psk_cb(). + * + * \note A PSK set by this function takes precedence over a PSK + * configured by \c mbedtls_ssl_conf_psk(). + * + * \param ssl The SSL context to configure a PSK for. + * \param psk The pointer to the pre-shared key. + * \param psk_len The length of the pre-shared key in bytes. + * + * \return \c 0 if successful. + * \return An \c MBEDTLS_ERR_SSL_XXX error code on failure. + */ +int mbedtls_ssl_set_hs_psk(mbedtls_ssl_context *ssl, + const unsigned char *psk, size_t psk_len); + +#if defined(MBEDTLS_USE_PSA_CRYPTO) +/** + * \brief Set an opaque pre-shared Key (PSK) for the current handshake. + * + * \note This should only be called inside the PSK callback, + * i.e. the function passed to \c mbedtls_ssl_conf_psk_cb(). + * + * \note An opaque PSK set by this function takes precedence over an + * opaque PSK configured by \c mbedtls_ssl_conf_psk_opaque(). + * + * \param ssl The SSL context to configure a PSK for. + * \param psk The identifier of the key slot holding the PSK. + * For the duration of the current handshake, the key slot + * must be populated with a key of type + * PSA_ALG_CATEGORY_KEY_DERIVATION whose policy allows its + * use for the key derivation algorithm + * applied in the handshake. + * + * \return \c 0 if successful. + * \return An \c MBEDTLS_ERR_SSL_XXX error code on failure. + */ +int mbedtls_ssl_set_hs_psk_opaque(mbedtls_ssl_context *ssl, + mbedtls_svc_key_id_t psk); +#endif /* MBEDTLS_USE_PSA_CRYPTO */ + +#if defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Set the PSK callback (server-side only). + * + * If set, the PSK callback is called for each + * handshake where a PSK-based ciphersuite was negotiated. + * The caller provides the identity received and wants to + * receive the actual PSK data and length. + * + * The callback has the following parameters: + * - \c void*: The opaque pointer \p p_psk. + * - \c mbedtls_ssl_context*: The SSL context to which + * the operation applies. + * - \c const unsigned char*: The PSK identity + * selected by the client. + * - \c size_t: The length of the PSK identity + * selected by the client. + * + * If a valid PSK identity is found, the callback should use + * \c mbedtls_ssl_set_hs_psk() or + * \c mbedtls_ssl_set_hs_psk_opaque() + * on the SSL context to set the correct PSK and return \c 0. + * Any other return value will result in a denied PSK identity. + * + * \note A dynamic PSK (i.e. set by the PSK callback) takes + * precedence over a static PSK (i.e. set by + * \c mbedtls_ssl_conf_psk() or + * \c mbedtls_ssl_conf_psk_opaque()). + * This means that if you set a PSK callback using this + * function, you don't need to set a PSK using + * \c mbedtls_ssl_conf_psk() or + * \c mbedtls_ssl_conf_psk_opaque()). + * + * \param conf The SSL configuration to register the callback with. + * \param f_psk The callback for selecting and setting the PSK based + * in the PSK identity chosen by the client. + * \param p_psk A pointer to an opaque structure to be passed to + * the callback, for example a PSK store. + */ +void mbedtls_ssl_conf_psk_cb(mbedtls_ssl_config *conf, + int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *, + size_t), + void *p_psk); +#endif /* MBEDTLS_SSL_SRV_C */ +#endif /* MBEDTLS_SSL_HANDSHAKE_WITH_PSK_ENABLED */ + +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Set the Diffie-Hellman public P and G values + * from big-endian binary presentations. + * (Default values: MBEDTLS_DHM_RFC3526_MODP_2048_[PG]_BIN) + * + * \param conf SSL configuration + * \param dhm_P Diffie-Hellman-Merkle modulus in big-endian binary form + * \param P_len Length of DHM modulus + * \param dhm_G Diffie-Hellman-Merkle generator in big-endian binary form + * \param G_len Length of DHM generator + * + * \return 0 if successful + */ +int mbedtls_ssl_conf_dh_param_bin(mbedtls_ssl_config *conf, + const unsigned char *dhm_P, size_t P_len, + const unsigned char *dhm_G, size_t G_len); + +/** + * \brief Set the Diffie-Hellman public P and G values, + * read from existing context (server-side only) + * + * \param conf SSL configuration + * \param dhm_ctx Diffie-Hellman-Merkle context + * + * \return 0 if successful + */ +int mbedtls_ssl_conf_dh_param_ctx(mbedtls_ssl_config *conf, mbedtls_dhm_context *dhm_ctx); +#endif /* MBEDTLS_DHM_C && defined(MBEDTLS_SSL_SRV_C) */ + +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C) +/** + * \brief Set the minimum length for Diffie-Hellman parameters. + * (Client-side only.) + * (Default: 1024 bits.) + * + * \param conf SSL configuration + * \param bitlen Minimum bit length of the DHM prime + */ +void mbedtls_ssl_conf_dhm_min_bitlen(mbedtls_ssl_config *conf, + unsigned int bitlen); +#endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_CLI_C */ + +#if defined(MBEDTLS_ECP_C) +#if !defined(MBEDTLS_DEPRECATED_REMOVED) +/** + * \brief Set the allowed curves in order of preference. + * + * On server: this only affects selection of the ECDHE curve; + * the curves used for ECDH and ECDSA are determined by the + * list of available certificates instead. + * + * On client: this affects the list of curves offered for any + * use. The server can override our preference order. + * + * Both sides: limits the set of curves accepted for use in + * ECDHE and in the peer's end-entity certificate. + * + * \deprecated Superseded by mbedtls_ssl_conf_groups(). + * + * \note This has no influence on which curves are allowed inside the + * certificate chains, see \c mbedtls_ssl_conf_cert_profile() + * for that. For the end-entity certificate however, the key + * will be accepted only if it is allowed both by this list + * and by the cert profile. + * + * \note This list should be ordered by decreasing preference + * (preferred curve first). + * + * \note The default list is the same set of curves that + * #mbedtls_x509_crt_profile_default allows, plus + * ECDHE-only curves selected according to the same criteria. + * The order favors curves with the lowest resource usage. + * + * \note New minor versions of Mbed TLS may extend this list, + * for example if new curves are added to the library. + * New minor versions of Mbed TLS will not remove items + * from this list unless serious security concerns require it. + * New minor versions of Mbed TLS may change the order in + * keeping with the general principle of favoring the lowest + * resource usage. + * + * \param conf SSL configuration + * \param curves Ordered list of allowed curves, + * terminated by MBEDTLS_ECP_DP_NONE. + */ +void MBEDTLS_DEPRECATED mbedtls_ssl_conf_curves(mbedtls_ssl_config *conf, + const mbedtls_ecp_group_id *curves); +#endif /* MBEDTLS_DEPRECATED_REMOVED */ +#endif /* MBEDTLS_ECP_C */ + +/** + * \brief Set the allowed groups in order of preference. + * + * On server: This only affects the choice of key agreement mechanism + * + * On client: this affects the list of groups offered for any + * use. The server can override our preference order. + * + * Both sides: limits the set of groups accepted for use in + * key sharing. + * + * \note This function replaces the deprecated mbedtls_ssl_conf_curves(), + * which only allows ECP curves to be configured. + * + * \note The most recent invocation of either mbedtls_ssl_conf_curves() + * or mbedtls_ssl_conf_groups() nullifies all previous invocations + * of both. + * + * \note This list should be ordered by decreasing preference + * (preferred group first). + * + * \note When this function is not called, a default list is used, + * consisting of all supported curves at 255 bits and above, + * and all supported finite fields at 2048 bits and above. + * The order favors groups with the lowest resource usage. + * + * \note New minor versions of Mbed TLS will not remove items + * from the default list unless serious security concerns require it. + * New minor versions of Mbed TLS may change the order in + * keeping with the general principle of favoring the lowest + * resource usage. + * + * \param conf SSL configuration + * \param groups List of allowed groups ordered by preference, terminated by 0. + * Must contain valid IANA NamedGroup IDs (provided via either an integer + * or using MBEDTLS_TLS1_3_NAMED_GROUP_XXX macros). + */ +void mbedtls_ssl_conf_groups(mbedtls_ssl_config *conf, + const uint16_t *groups); + +#if defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED) +#if !defined(MBEDTLS_DEPRECATED_REMOVED) && defined(MBEDTLS_SSL_PROTO_TLS1_2) +/** + * \brief Set the allowed hashes for signatures during the handshake. + * + * \note This only affects which hashes are offered and can be used + * for signatures during the handshake. Hashes for message + * authentication and the TLS PRF are controlled by the + * ciphersuite, see \c mbedtls_ssl_conf_ciphersuites(). Hashes + * used for certificate signature are controlled by the + * verification profile, see \c mbedtls_ssl_conf_cert_profile(). + * + * \note This list should be ordered by decreasing preference + * (preferred hash first). + * + * \note By default, all supported hashes whose length is at least + * 256 bits are allowed. This is the same set as the default + * for certificate verification + * (#mbedtls_x509_crt_profile_default). + * The preference order is currently unspecified and may + * change in future versions. + * + * \note New minor versions of Mbed TLS may extend this list, + * for example if new curves are added to the library. + * New minor versions of Mbed TLS will not remove items + * from this list unless serious security concerns require it. + * + * \param conf SSL configuration + * \param hashes Ordered list of allowed signature hashes, + * terminated by \c MBEDTLS_MD_NONE. + */ +void MBEDTLS_DEPRECATED mbedtls_ssl_conf_sig_hashes(mbedtls_ssl_config *conf, + const int *hashes); +#endif /* !MBEDTLS_DEPRECATED_REMOVED && MBEDTLS_SSL_PROTO_TLS1_2 */ + +/** + * \brief Configure allowed signature algorithms for use in TLS 1.3 + * + * \param conf The SSL configuration to use. + * \param sig_algs List of allowed IANA values for TLS 1.3 signature algorithms, + * terminated by \c MBEDTLS_TLS1_3_SIG_NONE. The list must remain + * available throughout the lifetime of the conf object. Supported + * values are available as \c MBEDTLS_TLS1_3_SIG_XXXX + */ +void mbedtls_ssl_conf_sig_algs(mbedtls_ssl_config *conf, + const uint16_t *sig_algs); +#endif /* MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/** + * \brief Set or reset the hostname to check against the received + * server certificate. It sets the ServerName TLS extension, + * too, if that extension is enabled. (client-side only) + * + * \param ssl SSL context + * \param hostname the server hostname, may be NULL to clear hostname + + * \note Maximum hostname length MBEDTLS_SSL_MAX_HOST_NAME_LEN. + * + * \return 0 if successful, MBEDTLS_ERR_SSL_ALLOC_FAILED on + * allocation failure, MBEDTLS_ERR_SSL_BAD_INPUT_DATA on + * too long input hostname. + * + * Hostname set to the one provided on success (cleared + * when NULL). On allocation failure hostname is cleared. + * On too long input failure, old hostname is unchanged. + */ +int mbedtls_ssl_set_hostname(mbedtls_ssl_context *ssl, const char *hostname); + +/** + * \brief Get the hostname that checked against the received + * server certificate. It is used to set the ServerName + * TLS extension, too, if that extension is enabled. + * (client-side only) + * + * \param ssl SSL context + * + * \return const pointer to the hostname value + */ +static inline const char *mbedtls_ssl_get_hostname(mbedtls_ssl_context *ssl) +{ + return ssl->MBEDTLS_PRIVATE(hostname); +} +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) +/** + * \brief Retrieve SNI extension value for the current handshake. + * Available in \c f_cert_cb of \c mbedtls_ssl_conf_cert_cb(), + * this is the same value passed to \c f_sni callback of + * \c mbedtls_ssl_conf_sni() and may be used instead of + * \c mbedtls_ssl_conf_sni(). + * + * \param ssl SSL context + * \param name_len pointer into which to store length of returned value. + * 0 if SNI extension is not present or not yet processed. + * + * \return const pointer to SNI extension value. + * - value is valid only when called in \c f_cert_cb + * registered with \c mbedtls_ssl_conf_cert_cb(). + * - value is NULL if SNI extension is not present. + * - value is not '\0'-terminated. Use \c name_len for len. + * - value must not be freed. + */ +const unsigned char *mbedtls_ssl_get_hs_sni(mbedtls_ssl_context *ssl, + size_t *name_len); + +/** + * \brief Set own certificate and key for the current handshake + * + * \note Same as \c mbedtls_ssl_conf_own_cert() but for use within + * the SNI callback or the certificate selection callback. + * + * \note Passing null \c own_cert clears the certificate list for + * the current handshake. + * + * \param ssl SSL context + * \param own_cert own public certificate chain + * \param pk_key own private key + * + * \return 0 on success or MBEDTLS_ERR_SSL_ALLOC_FAILED + */ +int mbedtls_ssl_set_hs_own_cert(mbedtls_ssl_context *ssl, + mbedtls_x509_crt *own_cert, + mbedtls_pk_context *pk_key); + +/** + * \brief Set the data required to verify peer certificate for the + * current handshake + * + * \note Same as \c mbedtls_ssl_conf_ca_chain() but for use within + * the SNI callback or the certificate selection callback. + * + * \param ssl SSL context + * \param ca_chain trusted CA chain (meaning all fully trusted top-level CAs) + * \param ca_crl trusted CA CRLs + */ +void mbedtls_ssl_set_hs_ca_chain(mbedtls_ssl_context *ssl, + mbedtls_x509_crt *ca_chain, + mbedtls_x509_crl *ca_crl); + +#if defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED) +/** + * \brief Set DN hints sent to client in CertificateRequest message + * + * \note Same as \c mbedtls_ssl_conf_dn_hints() but for use within + * the SNI callback or the certificate selection callback. + * + * \param ssl SSL context + * \param crt crt chain whose subject DNs are issuer DNs of client certs + * from which the client should select client peer certificate. + */ +void mbedtls_ssl_set_hs_dn_hints(mbedtls_ssl_context *ssl, + const mbedtls_x509_crt *crt); +#endif /* MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */ + +/** + * \brief Set authmode for the current handshake. + * + * \note Same as \c mbedtls_ssl_conf_authmode() but for use within + * the SNI callback or the certificate selection callback. + * + * \param ssl SSL context + * \param authmode MBEDTLS_SSL_VERIFY_NONE, MBEDTLS_SSL_VERIFY_OPTIONAL or + * MBEDTLS_SSL_VERIFY_REQUIRED + */ +void mbedtls_ssl_set_hs_authmode(mbedtls_ssl_context *ssl, + int authmode); + +/** + * \brief Set server side ServerName TLS extension callback + * (optional, server-side only). + * + * If set, the ServerName callback is called whenever the + * server receives a ServerName TLS extension from the client + * during a handshake. The ServerName callback has the + * following parameters: (void *parameter, mbedtls_ssl_context *ssl, + * const unsigned char *hostname, size_t len). If a suitable + * certificate is found, the callback must set the + * certificate(s) and key(s) to use with \c + * mbedtls_ssl_set_hs_own_cert() (can be called repeatedly), + * and may optionally adjust the CA and associated CRL with \c + * mbedtls_ssl_set_hs_ca_chain() as well as the client + * authentication mode with \c mbedtls_ssl_set_hs_authmode(), + * then must return 0. If no matching name is found, the + * callback may return non-zero to abort the handshake. + * + * \param conf SSL configuration + * \param f_sni verification function + * \param p_sni verification parameter + */ +void mbedtls_ssl_conf_sni(mbedtls_ssl_config *conf, + int (*f_sni)(void *, mbedtls_ssl_context *, const unsigned char *, + size_t), + void *p_sni); +#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +/** + * \brief Set the EC J-PAKE password for current handshake. + * + * \note An internal copy is made, and destroyed as soon as the + * handshake is completed, or when the SSL context is reset or + * freed. + * + * \note The SSL context needs to be already set up. The right place + * to call this function is between \c mbedtls_ssl_setup() or + * \c mbedtls_ssl_reset() and \c mbedtls_ssl_handshake(). + * Password cannot be empty (see RFC 8236). + * + * \param ssl SSL context + * \param pw EC J-PAKE password (pre-shared secret). It cannot be empty + * \param pw_len length of pw in bytes + * + * \return 0 on success, or a negative error code. + */ +int mbedtls_ssl_set_hs_ecjpake_password(mbedtls_ssl_context *ssl, + const unsigned char *pw, + size_t pw_len); + +/** + * \brief Set the EC J-PAKE opaque password for current handshake. + * + * \note The key must remain valid until the handshake is over. + * + * \note The SSL context needs to be already set up. The right place + * to call this function is between \c mbedtls_ssl_setup() or + * \c mbedtls_ssl_reset() and \c mbedtls_ssl_handshake(). + * + * \param ssl SSL context + * \param pwd EC J-PAKE opaque password + * + * \return 0 on success, or a negative error code. + */ +int mbedtls_ssl_set_hs_ecjpake_password_opaque(mbedtls_ssl_context *ssl, + mbedtls_svc_key_id_t pwd); +#endif /*MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ + +#if defined(MBEDTLS_SSL_ALPN) +/** + * \brief Set the supported Application Layer Protocols. + * + * \param conf SSL configuration + * \param protos Pointer to a NULL-terminated list of supported protocols, + * in decreasing preference order. The pointer to the list is + * recorded by the library for later reference as required, so + * the lifetime of the table must be at least as long as the + * lifetime of the SSL configuration structure. + * + * \return 0 on success, or MBEDTLS_ERR_SSL_BAD_INPUT_DATA. + */ +int mbedtls_ssl_conf_alpn_protocols(mbedtls_ssl_config *conf, const char **protos); + +/** + * \brief Get the name of the negotiated Application Layer Protocol. + * This function should be called after the handshake is + * completed. + * + * \param ssl SSL context + * + * \return Protocol name, or NULL if no protocol was negotiated. + */ +const char *mbedtls_ssl_get_alpn_protocol(const mbedtls_ssl_context *ssl); +#endif /* MBEDTLS_SSL_ALPN */ + +#if defined(MBEDTLS_SSL_DTLS_SRTP) +#if defined(MBEDTLS_DEBUG_C) +static inline const char *mbedtls_ssl_get_srtp_profile_as_string(mbedtls_ssl_srtp_profile profile) +{ + switch (profile) { + case MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_80: + return "MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_80"; + case MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_32: + return "MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_32"; + case MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_80: + return "MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_80"; + case MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_32: + return "MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_32"; + default: break; + } + return ""; +} +#endif /* MBEDTLS_DEBUG_C */ +/** + * \brief Manage support for mki(master key id) value + * in use_srtp extension. + * MKI is an optional part of SRTP used for key management + * and re-keying. See RFC3711 section 3.1 for details. + * The default value is + * #MBEDTLS_SSL_DTLS_SRTP_MKI_UNSUPPORTED. + * + * \param conf The SSL configuration to manage mki support. + * \param support_mki_value Enable or disable mki usage. Values are + * #MBEDTLS_SSL_DTLS_SRTP_MKI_UNSUPPORTED + * or #MBEDTLS_SSL_DTLS_SRTP_MKI_SUPPORTED. + */ +void mbedtls_ssl_conf_srtp_mki_value_supported(mbedtls_ssl_config *conf, + int support_mki_value); + +/** + * \brief Set the supported DTLS-SRTP protection profiles. + * + * \param conf SSL configuration + * \param profiles Pointer to a List of MBEDTLS_TLS_SRTP_UNSET terminated + * supported protection profiles + * in decreasing preference order. + * The pointer to the list is recorded by the library + * for later reference as required, so the lifetime + * of the table must be at least as long as the lifetime + * of the SSL configuration structure. + * The list must not hold more than + * MBEDTLS_TLS_SRTP_MAX_PROFILE_LIST_LENGTH elements + * (excluding the terminating MBEDTLS_TLS_SRTP_UNSET). + * + * \return 0 on success + * \return #MBEDTLS_ERR_SSL_BAD_INPUT_DATA when the list of + * protection profiles is incorrect. + */ +int mbedtls_ssl_conf_dtls_srtp_protection_profiles + (mbedtls_ssl_config *conf, + const mbedtls_ssl_srtp_profile *profiles); + +/** + * \brief Set the mki_value for the current DTLS-SRTP session. + * + * \param ssl SSL context to use. + * \param mki_value The MKI value to set. + * \param mki_len The length of the MKI value. + * + * \note This function is relevant on client side only. + * The server discovers the mki value during handshake. + * A mki value set on server side using this function + * is ignored. + * + * \return 0 on success + * \return #MBEDTLS_ERR_SSL_BAD_INPUT_DATA + * \return #MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE + */ +int mbedtls_ssl_dtls_srtp_set_mki_value(mbedtls_ssl_context *ssl, + unsigned char *mki_value, + uint16_t mki_len); +/** + * \brief Get the negotiated DTLS-SRTP information: + * Protection profile and MKI value. + * + * \warning This function must be called after the handshake is + * completed. The value returned by this function must + * not be trusted or acted upon before the handshake completes. + * + * \param ssl The SSL context to query. + * \param dtls_srtp_info The negotiated DTLS-SRTP information: + * - Protection profile in use. + * A direct mapping of the iana defined value for protection + * profile on an uint16_t. + http://www.iana.org/assignments/srtp-protection/srtp-protection.xhtml + * #MBEDTLS_TLS_SRTP_UNSET if the use of SRTP was not negotiated + * or peer's Hello packet was not parsed yet. + * - mki size and value( if size is > 0 ). + */ +void mbedtls_ssl_get_dtls_srtp_negotiation_result(const mbedtls_ssl_context *ssl, + mbedtls_dtls_srtp_info *dtls_srtp_info); +#endif /* MBEDTLS_SSL_DTLS_SRTP */ + +#if !defined(MBEDTLS_DEPRECATED_REMOVED) +/** + * \brief Set the maximum supported version sent from the client side + * and/or accepted at the server side. + * + * See also the documentation of mbedtls_ssl_conf_min_version(). + * + * \note This ignores ciphersuites from higher versions. + * + * \note This function is deprecated and has been replaced by + * \c mbedtls_ssl_conf_max_tls_version(). + * + * \param conf SSL configuration + * \param major Major version number (#MBEDTLS_SSL_MAJOR_VERSION_3) + * \param minor Minor version number + * (#MBEDTLS_SSL_MINOR_VERSION_3 for (D)TLS 1.2, + * #MBEDTLS_SSL_MINOR_VERSION_4 for TLS 1.3) + */ +void MBEDTLS_DEPRECATED mbedtls_ssl_conf_max_version(mbedtls_ssl_config *conf, int major, + int minor); +#endif /* MBEDTLS_DEPRECATED_REMOVED */ + +/** + * \brief Set the maximum supported version sent from the client side + * and/or accepted at the server side. + * + * \note After the handshake, you can call + * mbedtls_ssl_get_version_number() to see what version was + * negotiated. + * + * \param conf SSL configuration + * \param tls_version TLS protocol version number (\c mbedtls_ssl_protocol_version) + * (#MBEDTLS_SSL_VERSION_UNKNOWN is not valid) + */ +static inline void mbedtls_ssl_conf_max_tls_version(mbedtls_ssl_config *conf, + mbedtls_ssl_protocol_version tls_version) +{ + conf->MBEDTLS_PRIVATE(max_tls_version) = tls_version; +} + +#if !defined(MBEDTLS_DEPRECATED_REMOVED) +/** + * \brief Set the minimum accepted SSL/TLS protocol version + * + * \note By default, all supported versions are accepted. + * Future versions of the library may disable older + * protocol versions by default if they become deprecated. + * + * \note The following versions are supported (if enabled at + * compile time): + * - (D)TLS 1.2: \p major = #MBEDTLS_SSL_MAJOR_VERSION_3, + * \p minor = #MBEDTLS_SSL_MINOR_VERSION_3 + * - TLS 1.3: \p major = #MBEDTLS_SSL_MAJOR_VERSION_3, + * \p minor = #MBEDTLS_SSL_MINOR_VERSION_4 + * + * Note that the numbers in the constant names are the + * TLS internal protocol numbers, and the minor versions + * differ by one from the human-readable versions! + * + * \note Input outside of the SSL_MAX_XXXXX_VERSION and + * SSL_MIN_XXXXX_VERSION range is ignored. + * + * \note After the handshake, you can call + * mbedtls_ssl_get_version_number() to see what version was + * negotiated. + * + * \note This function is deprecated and has been replaced by + * \c mbedtls_ssl_conf_min_tls_version(). + * + * \param conf SSL configuration + * \param major Major version number (#MBEDTLS_SSL_MAJOR_VERSION_3) + * \param minor Minor version number + * (#MBEDTLS_SSL_MINOR_VERSION_3 for (D)TLS 1.2, + * #MBEDTLS_SSL_MINOR_VERSION_4 for TLS 1.3) + */ +void MBEDTLS_DEPRECATED mbedtls_ssl_conf_min_version(mbedtls_ssl_config *conf, int major, + int minor); +#endif /* MBEDTLS_DEPRECATED_REMOVED */ + +/** + * \brief Set the minimum supported version sent from the client side + * and/or accepted at the server side. + * + * \note After the handshake, you can call + * mbedtls_ssl_get_version_number() to see what version was + * negotiated. + * + * \param conf SSL configuration + * \param tls_version TLS protocol version number (\c mbedtls_ssl_protocol_version) + * (#MBEDTLS_SSL_VERSION_UNKNOWN is not valid) + */ +static inline void mbedtls_ssl_conf_min_tls_version(mbedtls_ssl_config *conf, + mbedtls_ssl_protocol_version tls_version) +{ + conf->MBEDTLS_PRIVATE(min_tls_version) = tls_version; +} + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) +/** + * \brief Enable or disable Encrypt-then-MAC + * (Default: MBEDTLS_SSL_ETM_ENABLED) + * + * \note This should always be enabled, it is a security + * improvement, and should not cause any interoperability + * issue (used only if the peer supports it too). + * + * \param conf SSL configuration + * \param etm MBEDTLS_SSL_ETM_ENABLED or MBEDTLS_SSL_ETM_DISABLED + */ +void mbedtls_ssl_conf_encrypt_then_mac(mbedtls_ssl_config *conf, char etm); +#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) +/** + * \brief Enable or disable Extended Master Secret negotiation. + * (Default: MBEDTLS_SSL_EXTENDED_MS_ENABLED) + * + * \note This should always be enabled, it is a security fix to the + * protocol, and should not cause any interoperability issue + * (used only if the peer supports it too). + * + * \param conf SSL configuration + * \param ems MBEDTLS_SSL_EXTENDED_MS_ENABLED or MBEDTLS_SSL_EXTENDED_MS_DISABLED + */ +void mbedtls_ssl_conf_extended_master_secret(mbedtls_ssl_config *conf, char ems); +#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ + +#if defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Whether to send a list of acceptable CAs in + * CertificateRequest messages. + * (Default: do send) + * + * \param conf SSL configuration + * \param cert_req_ca_list MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED or + * MBEDTLS_SSL_CERT_REQ_CA_LIST_DISABLED + */ +void mbedtls_ssl_conf_cert_req_ca_list(mbedtls_ssl_config *conf, + char cert_req_ca_list); +#endif /* MBEDTLS_SSL_SRV_C */ + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) +/** + * \brief Set the maximum fragment length to emit and/or negotiate. + * (Typical: the smaller of #MBEDTLS_SSL_IN_CONTENT_LEN and + * #MBEDTLS_SSL_OUT_CONTENT_LEN, usually `2^14` bytes) + * (Server: set maximum fragment length to emit, + * usually negotiated by the client during handshake) + * (Client: set maximum fragment length to emit *and* + * negotiate with the server during handshake) + * (Default: #MBEDTLS_SSL_MAX_FRAG_LEN_NONE) + * + * \note On the client side, the maximum fragment length extension + * *will not* be used, unless the maximum fragment length has + * been set via this function to a value different than + * #MBEDTLS_SSL_MAX_FRAG_LEN_NONE. + * + * \note With TLS, this currently only affects ApplicationData (sent + * with \c mbedtls_ssl_read()), not handshake messages. + * With DTLS, this affects both ApplicationData and handshake. + * + * \note This sets the maximum length for a record's payload, + * excluding record overhead that will be added to it, see + * \c mbedtls_ssl_get_record_expansion(). + * + * \note For DTLS, it is also possible to set a limit for the total + * size of datagrams passed to the transport layer, including + * record overhead, see \c mbedtls_ssl_set_mtu(). + * + * \param conf SSL configuration + * \param mfl_code Code for maximum fragment length (allowed values: + * MBEDTLS_SSL_MAX_FRAG_LEN_512, MBEDTLS_SSL_MAX_FRAG_LEN_1024, + * MBEDTLS_SSL_MAX_FRAG_LEN_2048, MBEDTLS_SSL_MAX_FRAG_LEN_4096) + * + * \return 0 if successful or MBEDTLS_ERR_SSL_BAD_INPUT_DATA + */ +int mbedtls_ssl_conf_max_frag_len(mbedtls_ssl_config *conf, unsigned char mfl_code); +#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Pick the ciphersuites order according to the second parameter + * in the SSL Server module (MBEDTLS_SSL_SRV_C). + * (Default, if never called: MBEDTLS_SSL_SRV_CIPHERSUITE_ORDER_SERVER) + * + * \param conf SSL configuration + * \param order Server or client (MBEDTLS_SSL_SRV_CIPHERSUITE_ORDER_SERVER + * or MBEDTLS_SSL_SRV_CIPHERSUITE_ORDER_CLIENT) + */ +void mbedtls_ssl_conf_preference_order(mbedtls_ssl_config *conf, int order); +#endif /* MBEDTLS_SSL_SRV_C */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) && \ + defined(MBEDTLS_SSL_CLI_C) +/** + * \brief Enable / Disable session tickets (client only). + * (Default: MBEDTLS_SSL_SESSION_TICKETS_ENABLED.) + * + * \note On server, use \c mbedtls_ssl_conf_session_tickets_cb(). + * + * \param conf SSL configuration + * \param use_tickets Enable or disable (MBEDTLS_SSL_SESSION_TICKETS_ENABLED or + * MBEDTLS_SSL_SESSION_TICKETS_DISABLED) + */ +void mbedtls_ssl_conf_session_tickets(mbedtls_ssl_config *conf, int use_tickets); +#endif /* MBEDTLS_SSL_SESSION_TICKETS && + MBEDTLS_SSL_CLI_C */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) && \ + defined(MBEDTLS_SSL_SRV_C) && \ + defined(MBEDTLS_SSL_PROTO_TLS1_3) +/** + * \brief Number of NewSessionTicket messages for the server to send + * after handshake completion. + * + * \note The default value is + * \c MBEDTLS_SSL_TLS1_3_DEFAULT_NEW_SESSION_TICKETS. + * + * \note In case of a session resumption, this setting only partially apply. + * At most one ticket is sent in that case to just renew the pool of + * tickets of the client. The rationale is to avoid the number of + * tickets on the server to become rapidly out of control when the + * server has the same configuration for all its connection instances. + * + * \param conf SSL configuration + * \param num_tickets Number of NewSessionTicket. + * + */ +void mbedtls_ssl_conf_new_session_tickets(mbedtls_ssl_config *conf, + uint16_t num_tickets); +#endif /* MBEDTLS_SSL_SESSION_TICKETS && + MBEDTLS_SSL_SRV_C && + MBEDTLS_SSL_PROTO_TLS1_3*/ + +#if defined(MBEDTLS_SSL_RENEGOTIATION) +/** + * \brief Enable / Disable renegotiation support for connection when + * initiated by peer + * (Default: MBEDTLS_SSL_RENEGOTIATION_DISABLED) + * + * \warning It is recommended to always disable renegotiation unless you + * know you need it and you know what you're doing. In the + * past, there have been several issues associated with + * renegotiation or a poor understanding of its properties. + * + * \note Server-side, enabling renegotiation also makes the server + * susceptible to a resource DoS by a malicious client. + * + * \param conf SSL configuration + * \param renegotiation Enable or disable (MBEDTLS_SSL_RENEGOTIATION_ENABLED or + * MBEDTLS_SSL_RENEGOTIATION_DISABLED) + */ +void mbedtls_ssl_conf_renegotiation(mbedtls_ssl_config *conf, int renegotiation); +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + +/** + * \brief Prevent or allow legacy renegotiation. + * (Default: MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION) + * + * MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION allows connections to + * be established even if the peer does not support + * secure renegotiation, but does not allow renegotiation + * to take place if not secure. + * (Interoperable and secure option) + * + * MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION allows renegotiations + * with non-upgraded peers. Allowing legacy renegotiation + * makes the connection vulnerable to specific man in the + * middle attacks. (See RFC 5746) + * (Most interoperable and least secure option) + * + * MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE breaks off connections + * if peer does not support secure renegotiation. Results + * in interoperability issues with non-upgraded peers + * that do not support renegotiation altogether. + * (Most secure option, interoperability issues) + * + * \param conf SSL configuration + * \param allow_legacy Prevent or allow (SSL_NO_LEGACY_RENEGOTIATION, + * SSL_ALLOW_LEGACY_RENEGOTIATION or + * MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE) + */ +void mbedtls_ssl_conf_legacy_renegotiation(mbedtls_ssl_config *conf, int allow_legacy); + +#if defined(MBEDTLS_SSL_RENEGOTIATION) +/** + * \brief Enforce renegotiation requests. + * (Default: enforced, max_records = 16) + * + * When we request a renegotiation, the peer can comply or + * ignore the request. This function allows us to decide + * whether to enforce our renegotiation requests by closing + * the connection if the peer doesn't comply. + * + * However, records could already be in transit from the peer + * when the request is emitted. In order to increase + * reliability, we can accept a number of records before the + * expected handshake records. + * + * The optimal value is highly dependent on the specific usage + * scenario. + * + * \note With DTLS and server-initiated renegotiation, the + * HelloRequest is retransmitted every time mbedtls_ssl_read() times + * out or receives Application Data, until: + * - max_records records have beens seen, if it is >= 0, or + * - the number of retransmits that would happen during an + * actual handshake has been reached. + * Please remember the request might be lost a few times + * if you consider setting max_records to a really low value. + * + * \warning On client, the grace period can only happen during + * mbedtls_ssl_read(), as opposed to mbedtls_ssl_write() and mbedtls_ssl_renegotiate() + * which always behave as if max_record was 0. The reason is, + * if we receive application data from the server, we need a + * place to write it, which only happens during mbedtls_ssl_read(). + * + * \param conf SSL configuration + * \param max_records Use MBEDTLS_SSL_RENEGOTIATION_NOT_ENFORCED if you don't want to + * enforce renegotiation, or a non-negative value to enforce + * it but allow for a grace period of max_records records. + */ +void mbedtls_ssl_conf_renegotiation_enforced(mbedtls_ssl_config *conf, int max_records); + +/** + * \brief Set record counter threshold for periodic renegotiation. + * (Default: 2^48 - 1) + * + * Renegotiation is automatically triggered when a record + * counter (outgoing or incoming) crosses the defined + * threshold. The default value is meant to prevent the + * connection from being closed when the counter is about to + * reached its maximal value (it is not allowed to wrap). + * + * Lower values can be used to enforce policies such as "keys + * must be refreshed every N packets with cipher X". + * + * The renegotiation period can be disabled by setting + * conf->disable_renegotiation to + * MBEDTLS_SSL_RENEGOTIATION_DISABLED. + * + * \note When the configured transport is + * MBEDTLS_SSL_TRANSPORT_DATAGRAM the maximum renegotiation + * period is 2^48 - 1, and for MBEDTLS_SSL_TRANSPORT_STREAM, + * the maximum renegotiation period is 2^64 - 1. + * + * \param conf SSL configuration + * \param period The threshold value: a big-endian 64-bit number. + */ +void mbedtls_ssl_conf_renegotiation_period(mbedtls_ssl_config *conf, + const unsigned char period[8]); +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + +/** + * \brief Check if there is data already read from the + * underlying transport but not yet processed. + * + * \param ssl SSL context + * + * \return 0 if nothing's pending, 1 otherwise. + * + * \note This is different in purpose and behaviour from + * \c mbedtls_ssl_get_bytes_avail in that it considers + * any kind of unprocessed data, not only unread + * application data. If \c mbedtls_ssl_get_bytes + * returns a non-zero value, this function will + * also signal pending data, but the converse does + * not hold. For example, in DTLS there might be + * further records waiting to be processed from + * the current underlying transport's datagram. + * + * \note If this function returns 1 (data pending), this + * does not imply that a subsequent call to + * \c mbedtls_ssl_read will provide any data; + * e.g., the unprocessed data might turn out + * to be an alert or a handshake message. + * + * \note This function is useful in the following situation: + * If the SSL/TLS module successfully returns from an + * operation - e.g. a handshake or an application record + * read - and you're awaiting incoming data next, you + * must not immediately idle on the underlying transport + * to have data ready, but you need to check the value + * of this function first. The reason is that the desired + * data might already be read but not yet processed. + * If, in contrast, a previous call to the SSL/TLS module + * returned MBEDTLS_ERR_SSL_WANT_READ, it is not necessary + * to call this function, as the latter error code entails + * that all internal data has been processed. + * + */ +int mbedtls_ssl_check_pending(const mbedtls_ssl_context *ssl); + +/** + * \brief Return the number of application data bytes + * remaining to be read from the current record. + * + * \param ssl SSL context + * + * \return How many bytes are available in the application + * data record read buffer. + * + * \note When working over a datagram transport, this is + * useful to detect the current datagram's boundary + * in case \c mbedtls_ssl_read has written the maximal + * amount of data fitting into the input buffer. + * + */ +size_t mbedtls_ssl_get_bytes_avail(const mbedtls_ssl_context *ssl); + +/** + * \brief Return the result of the certificate verification + * + * \param ssl The SSL context to use. + * + * \return \c 0 if the certificate verification was successful. + * \return \c -1u if the result is not available. This may happen + * e.g. if the handshake aborts early, or a verification + * callback returned a fatal error. + * \return A bitwise combination of \c MBEDTLS_X509_BADCERT_XXX + * and \c MBEDTLS_X509_BADCRL_XXX failure flags; see x509.h. + */ +uint32_t mbedtls_ssl_get_verify_result(const mbedtls_ssl_context *ssl); + +/** + * \brief Return the id of the current ciphersuite + * + * \param ssl SSL context + * + * \return a ciphersuite id + */ +int mbedtls_ssl_get_ciphersuite_id_from_ssl(const mbedtls_ssl_context *ssl); + +/** + * \brief Return the name of the current ciphersuite + * + * \param ssl SSL context + * + * \return a string containing the ciphersuite name + */ +const char *mbedtls_ssl_get_ciphersuite(const mbedtls_ssl_context *ssl); + + +/** + * \brief Return the (D)TLS protocol version negotiated in the + * given connection. + * + * \note If you call this function too early during the initial + * handshake, before the two sides have agreed on a version, + * this function returns #MBEDTLS_SSL_VERSION_UNKNOWN. + * + * \param ssl The SSL context to query. + * \return The negotiated protocol version. + */ +static inline mbedtls_ssl_protocol_version mbedtls_ssl_get_version_number( + const mbedtls_ssl_context *ssl) +{ + return ssl->MBEDTLS_PRIVATE(tls_version); +} + +/** + * \brief Return the current TLS version + * + * \param ssl SSL context + * + * \return a string containing the TLS version + */ +const char *mbedtls_ssl_get_version(const mbedtls_ssl_context *ssl); + +/** + * \brief Return the (maximum) number of bytes added by the record + * layer: header + encryption/MAC overhead (inc. padding) + * + * \param ssl SSL context + * + * \return Current maximum record expansion in bytes + */ +int mbedtls_ssl_get_record_expansion(const mbedtls_ssl_context *ssl); + +/** + * \brief Return the current maximum outgoing record payload in bytes. + * + * \note The logic to determine the maximum outgoing record payload is + * version-specific. It takes into account various factors, such as + * the mbedtls_config.h setting \c MBEDTLS_SSL_OUT_CONTENT_LEN, extensions + * such as the max fragment length or record size limit extension if + * used, and for DTLS the path MTU as configured and current + * record expansion. + * + * \note With DTLS, \c mbedtls_ssl_write() will return an error if + * called with a larger length value. + * With TLS, \c mbedtls_ssl_write() will fragment the input if + * necessary and return the number of bytes written; it is up + * to the caller to call \c mbedtls_ssl_write() again in + * order to send the remaining bytes if any. + * + * \sa mbedtls_ssl_get_max_out_record_payload() + * \sa mbedtls_ssl_get_record_expansion() + * + * \param ssl SSL context + * + * \return Current maximum payload for an outgoing record, + * or a negative error code. + */ +int mbedtls_ssl_get_max_out_record_payload(const mbedtls_ssl_context *ssl); + +/** + * \brief Return the current maximum incoming record payload in bytes. + * + * \note The logic to determine the maximum incoming record payload is + * version-specific. It takes into account various factors, such as + * the mbedtls_config.h setting \c MBEDTLS_SSL_IN_CONTENT_LEN, extensions + * such as the max fragment length extension or record size limit + * extension if used, and the current record expansion. + * + * \sa mbedtls_ssl_set_mtu() + * \sa mbedtls_ssl_get_max_in_record_payload() + * \sa mbedtls_ssl_get_record_expansion() + * + * \param ssl SSL context + * + * \return Current maximum payload for an incoming record, + * or a negative error code. + */ +int mbedtls_ssl_get_max_in_record_payload(const mbedtls_ssl_context *ssl); + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/** + * \brief Return the peer certificate from the current connection. + * + * \param ssl The SSL context to use. This must be initialized and setup. + * + * \return The current peer certificate, if available. + * The returned certificate is owned by the SSL context and + * is valid only until the next call to the SSL API. + * \return \c NULL if no peer certificate is available. This might + * be because the chosen ciphersuite doesn't use CRTs + * (PSK-based ciphersuites, for example), or because + * #MBEDTLS_SSL_KEEP_PEER_CERTIFICATE has been disabled, + * allowing the stack to free the peer's CRT to save memory. + * + * \note For one-time inspection of the peer's certificate during + * the handshake, consider registering an X.509 CRT verification + * callback through mbedtls_ssl_conf_verify() instead of calling + * this function. Using mbedtls_ssl_conf_verify() also comes at + * the benefit of allowing you to influence the verification + * process, for example by masking expected and tolerated + * verification failures. + * + * \warning You must not use the pointer returned by this function + * after any further call to the SSL API, including + * mbedtls_ssl_read() and mbedtls_ssl_write(); this is + * because the pointer might change during renegotiation, + * which happens transparently to the user. + * If you want to use the certificate across API calls, + * you must make a copy. + */ +const mbedtls_x509_crt *mbedtls_ssl_get_peer_cert(const mbedtls_ssl_context *ssl); +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_SSL_CLI_C) +/** + * \brief Export a session in order to resume it later. + * + * \param ssl The SSL context representing the connection for which to + * to export a session structure for later resumption. + * \param session The target structure in which to store the exported session. + * This must have been initialized with mbedtls_ssl_init_session() + * but otherwise be unused. + * + * \note This function can handle a variety of mechanisms for session + * resumption: For TLS 1.2, both session ID-based resumption and + * ticket-based resumption will be considered. For TLS 1.3, + * once implemented, sessions equate to tickets, and calling + * this function multiple times will export the available + * tickets one a time until no further tickets are available, + * in which case MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE will + * be returned. + * + * \note Calling this function multiple times will only be useful + * once TLS 1.3 is supported. For TLS 1.2 connections, this + * function should be called at most once. + * + * \return \c 0 if successful. In this case, \p session can be used for + * session resumption by passing it to mbedtls_ssl_set_session(), + * and serialized for storage via mbedtls_ssl_session_save(). + * \return #MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE if no further session + * is available for export. + * This error is a non-fatal, and has no observable effect on + * the SSL context or the destination session. + * \return Another negative error code on other kinds of failure. + * + * \sa mbedtls_ssl_set_session() + * \sa mbedtls_ssl_session_save() + */ +int mbedtls_ssl_get_session(const mbedtls_ssl_context *ssl, + mbedtls_ssl_session *session); +#endif /* MBEDTLS_SSL_CLI_C */ + +/** + * \brief Perform the SSL handshake + * + * \param ssl SSL context + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_SSL_WANT_READ or #MBEDTLS_ERR_SSL_WANT_WRITE + * if the handshake is incomplete and waiting for data to + * be available for reading from or writing to the underlying + * transport - in this case you must call this function again + * when the underlying transport is ready for the operation. + * \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if an asynchronous + * operation is in progress (see + * mbedtls_ssl_conf_async_private_cb()) - in this case you + * must call this function again when the operation is ready. + * \return #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS if a cryptographic + * operation is in progress (see mbedtls_ecp_set_max_ops()) - + * in this case you must call this function again to complete + * the handshake when you're done attending other tasks. + * \return #MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED if DTLS is in use + * and the client did not demonstrate reachability yet - in + * this case you must stop using the context (see below). + * \return Another SSL error code - in this case you must stop using + * the context (see below). + * + * \warning If this function returns something other than + * \c 0, + * #MBEDTLS_ERR_SSL_WANT_READ, + * #MBEDTLS_ERR_SSL_WANT_WRITE, + * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS or + * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS, + * you must stop using the SSL context for reading or writing, + * and either free it or call \c mbedtls_ssl_session_reset() + * on it before re-using it for a new connection; the current + * connection must be closed. + * + * \note If DTLS is in use, then you may choose to handle + * #MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED specially for logging + * purposes, as it is an expected return value rather than an + * actual error, but you still need to reset/free the context. + * + * \note Remarks regarding event-driven DTLS: + * If the function returns #MBEDTLS_ERR_SSL_WANT_READ, no datagram + * from the underlying transport layer is currently being processed, + * and it is safe to idle until the timer or the underlying transport + * signal a new event. This is not true for a successful handshake, + * in which case the datagram of the underlying transport that is + * currently being processed might or might not contain further + * DTLS records. + * + * \note If the context is configured to allow TLS 1.3, or if + * #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + */ +int mbedtls_ssl_handshake(mbedtls_ssl_context *ssl); + +/** + * \brief After calling mbedtls_ssl_handshake() to start the SSL + * handshake you can call this function to check whether the + * handshake is over for a given SSL context. This function + * should be also used to determine when to stop calling + * mbedtls_handshake_step() for that context. + * + * \param ssl SSL context + * + * \return \c 1 if handshake is over, \c 0 if it is still ongoing. + */ +static inline int mbedtls_ssl_is_handshake_over(mbedtls_ssl_context *ssl) +{ + return ssl->MBEDTLS_PRIVATE(state) >= MBEDTLS_SSL_HANDSHAKE_OVER; +} + +/** + * \brief Perform a single step of the SSL handshake + * + * \note The state of the context (ssl->state) will be at + * the next state after this function returns \c 0. Do not + * call this function if mbedtls_ssl_is_handshake_over() + * returns \c 1. + * + * \warning Whilst in the past you may have used direct access to the + * context state (ssl->state) in order to ascertain when to + * stop calling this function and although you can still do + * so with something like ssl->MBEDTLS_PRIVATE(state) or by + * defining MBEDTLS_ALLOW_PRIVATE_ACCESS, this is now + * considered deprecated and could be broken in any future + * release. If you still find you have good reason for such + * direct access, then please do contact the team to explain + * this (raise an issue or post to the mailing list), so that + * we can add a solution to your problem that will be + * guaranteed to work in the future. + * + * \param ssl SSL context + * + * \return See mbedtls_ssl_handshake(). + * + * \warning If this function returns something other than \c 0, + * #MBEDTLS_ERR_SSL_WANT_READ, #MBEDTLS_ERR_SSL_WANT_WRITE, + * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS or + * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS, you must stop using + * the SSL context for reading or writing, and either free it + * or call \c mbedtls_ssl_session_reset() on it before + * re-using it for a new connection; the current connection + * must be closed. + */ +int mbedtls_ssl_handshake_step(mbedtls_ssl_context *ssl); + +#if defined(MBEDTLS_SSL_RENEGOTIATION) +/** + * \brief Initiate an SSL renegotiation on the running connection. + * Client: perform the renegotiation right now. + * Server: request renegotiation, which will be performed + * during the next call to mbedtls_ssl_read() if honored by + * client. + * + * \param ssl SSL context + * + * \return 0 if successful, or any mbedtls_ssl_handshake() return + * value except #MBEDTLS_ERR_SSL_CLIENT_RECONNECT that can't + * happen during a renegotiation. + * + * \warning If this function returns something other than \c 0, + * #MBEDTLS_ERR_SSL_WANT_READ, #MBEDTLS_ERR_SSL_WANT_WRITE, + * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS or + * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS, you must stop using + * the SSL context for reading or writing, and either free it + * or call \c mbedtls_ssl_session_reset() on it before + * re-using it for a new connection; the current connection + * must be closed. + * + */ +int mbedtls_ssl_renegotiate(mbedtls_ssl_context *ssl); +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + +/** + * \brief Read at most 'len' application data bytes + * + * \param ssl SSL context + * \param buf buffer that will hold the data + * \param len maximum number of bytes to read + * + * \return The (positive) number of bytes read if successful. + * \return \c 0 if the read end of the underlying transport was closed + * without sending a CloseNotify beforehand, which might happen + * because of various reasons (internal error of an underlying + * stack, non-conformant peer not sending a CloseNotify and + * such) - in this case you must stop using the context + * (see below). + * \return #MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY if the underlying + * transport is still functional, but the peer has + * acknowledged to not send anything anymore. + * \return #MBEDTLS_ERR_SSL_WANT_READ or #MBEDTLS_ERR_SSL_WANT_WRITE + * if the handshake is incomplete and waiting for data to + * be available for reading from or writing to the underlying + * transport - in this case you must call this function again + * when the underlying transport is ready for the operation. + * \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if an asynchronous + * operation is in progress (see + * mbedtls_ssl_conf_async_private_cb()) - in this case you + * must call this function again when the operation is ready. + * \return #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS if a cryptographic + * operation is in progress (see mbedtls_ecp_set_max_ops()) - + * in this case you must call this function again to complete + * the handshake when you're done attending other tasks. + * \return #MBEDTLS_ERR_SSL_CLIENT_RECONNECT if we're at the server + * side of a DTLS connection and the client is initiating a + * new connection using the same source port. See below. + * \return Another SSL error code - in this case you must stop using + * the context (see below). + * + * \warning If this function returns something other than + * a positive value, + * #MBEDTLS_ERR_SSL_WANT_READ, + * #MBEDTLS_ERR_SSL_WANT_WRITE, + * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS, + * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS or + * #MBEDTLS_ERR_SSL_CLIENT_RECONNECT, + * you must stop using the SSL context for reading or writing, + * and either free it or call \c mbedtls_ssl_session_reset() + * on it before re-using it for a new connection; the current + * connection must be closed. + * + * \note When this function returns #MBEDTLS_ERR_SSL_CLIENT_RECONNECT + * (which can only happen server-side), it means that a client + * is initiating a new connection using the same source port. + * You can either treat that as a connection close and wait + * for the client to resend a ClientHello, or directly + * continue with \c mbedtls_ssl_handshake() with the same + * context (as it has been reset internally). Either way, you + * must make sure this is seen by the application as a new + * connection: application state, if any, should be reset, and + * most importantly the identity of the client must be checked + * again. WARNING: not validating the identity of the client + * again, or not transmitting the new identity to the + * application layer, would allow authentication bypass! + * + * \note Remarks regarding event-driven DTLS: + * - If the function returns #MBEDTLS_ERR_SSL_WANT_READ, no datagram + * from the underlying transport layer is currently being processed, + * and it is safe to idle until the timer or the underlying transport + * signal a new event. + * - This function may return MBEDTLS_ERR_SSL_WANT_READ even if data was + * initially available on the underlying transport, as this data may have + * been only e.g. duplicated messages or a renegotiation request. + * Therefore, you must be prepared to receive MBEDTLS_ERR_SSL_WANT_READ even + * when reacting to an incoming-data event from the underlying transport. + * - On success, the datagram of the underlying transport that is currently + * being processed may contain further DTLS records. You should call + * \c mbedtls_ssl_check_pending to check for remaining records. + * + */ +int mbedtls_ssl_read(mbedtls_ssl_context *ssl, unsigned char *buf, size_t len); + +/** + * \brief Try to write exactly 'len' application data bytes + * + * \warning This function will do partial writes in some cases. If the + * return value is non-negative but less than length, the + * function must be called again with updated arguments: + * buf + ret, len - ret (if ret is the return value) until + * it returns a value equal to the last 'len' argument. + * + * \param ssl SSL context + * \param buf buffer holding the data + * \param len how many bytes must be written + * + * \return The (non-negative) number of bytes actually written if + * successful (may be less than \p len). + * \return #MBEDTLS_ERR_SSL_WANT_READ or #MBEDTLS_ERR_SSL_WANT_WRITE + * if the handshake is incomplete and waiting for data to + * be available for reading from or writing to the underlying + * transport - in this case you must call this function again + * when the underlying transport is ready for the operation. + * \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if an asynchronous + * operation is in progress (see + * mbedtls_ssl_conf_async_private_cb()) - in this case you + * must call this function again when the operation is ready. + * \return #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS if a cryptographic + * operation is in progress (see mbedtls_ecp_set_max_ops()) - + * in this case you must call this function again to complete + * the handshake when you're done attending other tasks. + * \return Another SSL error code - in this case you must stop using + * the context (see below). + * + * \warning If this function returns something other than + * a non-negative value, + * #MBEDTLS_ERR_SSL_WANT_READ, + * #MBEDTLS_ERR_SSL_WANT_WRITE, + * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS or + * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS, + * you must stop using the SSL context for reading or writing, + * and either free it or call \c mbedtls_ssl_session_reset() + * on it before re-using it for a new connection; the current + * connection must be closed. + * + * \note When this function returns #MBEDTLS_ERR_SSL_WANT_WRITE/READ, + * it must be called later with the *same* arguments, + * until it returns a value greater than or equal to 0. When + * the function returns #MBEDTLS_ERR_SSL_WANT_WRITE there may be + * some partial data in the output buffer, however this is not + * yet sent. + * + * \note If the requested length is greater than the maximum + * fragment length (either the built-in limit or the one set + * or negotiated with the peer), then: + * - with TLS, less bytes than requested are written. + * - with DTLS, MBEDTLS_ERR_SSL_BAD_INPUT_DATA is returned. + * \c mbedtls_ssl_get_max_out_record_payload() may be used to + * query the active maximum fragment length. + * + * \note Attempting to write 0 bytes will result in an empty TLS + * application record being sent. + */ +int mbedtls_ssl_write(mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len); + +/** + * \brief Send an alert message + * + * \param ssl SSL context + * \param level The alert level of the message + * (MBEDTLS_SSL_ALERT_LEVEL_WARNING or MBEDTLS_SSL_ALERT_LEVEL_FATAL) + * \param message The alert message (SSL_ALERT_MSG_*) + * + * \return 0 if successful, or a specific SSL error code. + * + * \note If this function returns something other than 0 or + * MBEDTLS_ERR_SSL_WANT_READ/WRITE, you must stop using + * the SSL context for reading or writing, and either free it or + * call \c mbedtls_ssl_session_reset() on it before re-using it + * for a new connection; the current connection must be closed. + */ +int mbedtls_ssl_send_alert_message(mbedtls_ssl_context *ssl, + unsigned char level, + unsigned char message); +/** + * \brief Notify the peer that the connection is being closed + * + * \param ssl SSL context + * + * \return 0 if successful, or a specific SSL error code. + * + * \note If this function returns something other than 0 or + * MBEDTLS_ERR_SSL_WANT_READ/WRITE, you must stop using + * the SSL context for reading or writing, and either free it or + * call \c mbedtls_ssl_session_reset() on it before re-using it + * for a new connection; the current connection must be closed. + */ +int mbedtls_ssl_close_notify(mbedtls_ssl_context *ssl); + +#if defined(MBEDTLS_SSL_EARLY_DATA) + +#if defined(MBEDTLS_SSL_SRV_C) +/** + * \brief Read at most 'len' application data bytes while performing + * the handshake (early data). + * + * \note This function behaves mainly as mbedtls_ssl_read(). The + * specification of mbedtls_ssl_read() relevant to TLS 1.3 + * (thus not the parts specific to (D)TLS 1.2) applies to this + * function and the present documentation is restricted to the + * differences with mbedtls_ssl_read(). + * + * \param ssl SSL context + * \param buf buffer that will hold the data + * \param len maximum number of bytes to read + * + * \return One additional specific return value: + * #MBEDTLS_ERR_SSL_CANNOT_READ_EARLY_DATA. + * + * #MBEDTLS_ERR_SSL_CANNOT_READ_EARLY_DATA is returned when it + * is not possible to read early data for the SSL context + * \p ssl. + * + * It may have been possible and it is not possible + * anymore because the server received the End of Early Data + * message or the maximum number of allowed early data for the + * PSK in use has been reached. + * + * It may never have been possible and will never be possible + * for the SSL context \p ssl because the use of early data + * is disabled for that context or more generally the context + * is not suitably configured to enable early data or the + * client does not use early data or the first call to the + * function was done while the handshake was already too + * advanced to gather and accept early data. + * + * It is not possible to read early data for the SSL context + * \p ssl but this does not preclude for using it with + * mbedtls_ssl_write(), mbedtls_ssl_read() or + * mbedtls_ssl_handshake(). + * + * \note When a server wants to retrieve early data, it is expected + * that this function starts the handshake for the SSL context + * \p ssl. But this is not mandatory. + * + */ +int mbedtls_ssl_read_early_data(mbedtls_ssl_context *ssl, + unsigned char *buf, size_t len); +#endif /* MBEDTLS_SSL_SRV_C */ + +#if defined(MBEDTLS_SSL_CLI_C) +/** + * \brief Try to write exactly 'len' application data bytes while + * performing the handshake (early data). + * + * \note This function behaves mainly as mbedtls_ssl_write(). The + * specification of mbedtls_ssl_write() relevant to TLS 1.3 + * (thus not the parts specific to (D)TLS1.2) applies to this + * function and the present documentation is restricted to the + * differences with mbedtls_ssl_write(). + * + * \param ssl SSL context + * \param buf buffer holding the data + * \param len how many bytes must be written + * + * \return One additional specific return value: + * #MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA. + * + * #MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA is returned when it + * is not possible to write early data for the SSL context + * \p ssl. + * + * It may have been possible and it is not possible + * anymore because the client received the server Finished + * message, the server rejected early data or the maximum + * number of allowed early data for the PSK in use has been + * reached. + * + * It may never have been possible and will never be possible + * for the SSL context \p ssl because the use of early data + * is disabled for that context or more generally the context + * is not suitably configured to enable early data or the first + * call to the function was done while the handshake was + * already completed. + * + * It is not possible to write early data for the SSL context + * \p ssl but this does not preclude for using it with + * mbedtls_ssl_write(), mbedtls_ssl_read() or + * mbedtls_ssl_handshake(). + * + * \note This function may write early data only if the SSL context + * has been configured for the handshake with a PSK for which + * early data is allowed. + * + * \note To maximize the number of early data that can be written in + * the course of the handshake, it is expected that this + * function starts the handshake for the SSL context \p ssl. + * But this is not mandatory. + * + * \note This function does not provide any information on whether + * the server has accepted or will accept early data or not. + * When it returns a positive value, it just means that it + * has written early data to the server. To know whether the + * server has accepted early data or not, you should call + * mbedtls_ssl_get_early_data_status() with the handshake + * completed. + */ +int mbedtls_ssl_write_early_data(mbedtls_ssl_context *ssl, + const unsigned char *buf, size_t len); + +#define MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT 0 +#define MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED 1 +#define MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED 2 +/** + * \brief Get the status of the negotiation of the use of early data. + * + * \param ssl The SSL context to query + * + * \return #MBEDTLS_ERR_SSL_BAD_INPUT_DATA if this function is called + * from the server-side. + * + * \return #MBEDTLS_ERR_SSL_BAD_INPUT_DATA if this function is called + * prior to completion of the handshake. + * + * \return #MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT if the client has + * not indicated the use of early data to the server. + * + * \return #MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED if the client has + * indicated the use of early data and the server has accepted + * it. + * + * \return #MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED if the client has + * indicated the use of early data but the server has rejected + * it. In this situation, the client may want to re-send the + * early data it may have tried to send by calling + * mbedtls_ssl_write_early_data() as ordinary post-handshake + * application data by calling mbedtls_ssl_write(). + * + */ +int mbedtls_ssl_get_early_data_status(mbedtls_ssl_context *ssl); +#endif /* MBEDTLS_SSL_CLI_C */ + +#endif /* MBEDTLS_SSL_EARLY_DATA */ + +/** + * \brief Free referenced items in an SSL context and clear memory + * + * \param ssl SSL context + */ +void mbedtls_ssl_free(mbedtls_ssl_context *ssl); + +#if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION) +/** + * \brief Save an active connection as serialized data in a buffer. + * This allows the freeing or re-using of the SSL context + * while still picking up the connection later in a way that + * it entirely transparent to the peer. + * + * \see mbedtls_ssl_context_load() + * + * \note The serialized data only contains the data that is + * necessary to resume the connection: negotiated protocol + * options, session identifier, keys, etc. + * Loading a saved SSL context does not restore settings and + * state related to how the application accesses the context, + * such as configured callback functions, user data, pending + * incoming or outgoing data, etc. + * + * \note This feature is currently only available under certain + * conditions, see the documentation of the return value + * #MBEDTLS_ERR_SSL_BAD_INPUT_DATA for details. + * + * \note When this function succeeds, it calls + * mbedtls_ssl_session_reset() on \p ssl which as a result is + * no longer associated with the connection that has been + * serialized. This avoids creating copies of the connection + * state. You're then free to either re-use the context + * structure for a different connection, or call + * mbedtls_ssl_free() on it. See the documentation of + * mbedtls_ssl_session_reset() for more details. + * + * \param ssl The SSL context to save. On success, it is no longer + * associated with the connection that has been serialized. + * \param buf The buffer to write the serialized data to. It must be a + * writeable buffer of at least \p buf_len bytes, or may be \c + * NULL if \p buf_len is \c 0. + * \param buf_len The number of bytes available for writing in \p buf. + * \param olen The size in bytes of the data that has been or would have + * been written. It must point to a valid \c size_t. + * + * \note \p olen is updated to the correct value regardless of + * whether \p buf_len was large enough. This makes it possible + * to determine the necessary size by calling this function + * with \p buf set to \c NULL and \p buf_len to \c 0. However, + * the value of \p olen is only guaranteed to be correct when + * the function returns #MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL or + * \c 0. If the return value is different, then the value of + * \p olen is undefined. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL if \p buf is too small. + * \return #MBEDTLS_ERR_SSL_ALLOC_FAILED if memory allocation failed + * while resetting the context. + * \return #MBEDTLS_ERR_SSL_BAD_INPUT_DATA if a handshake is in + * progress, or there is pending data for reading or sending, + * or the connection does not use DTLS 1.2 with an AEAD + * ciphersuite, or renegotiation is enabled. + */ +int mbedtls_ssl_context_save(mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t buf_len, + size_t *olen); + +/** + * \brief Load serialized connection data to an SSL context. + * + * \see mbedtls_ssl_context_save() + * + * \warning The same serialized data must never be loaded into more + * that one context. In order to ensure that, after + * successfully loading serialized data to an SSL context, you + * should immediately destroy or invalidate all copies of the + * serialized data that was loaded. Loading the same data in + * more than one context would cause severe security failures + * including but not limited to loss of confidentiality. + * + * \note Before calling this function, the SSL context must be + * prepared in one of the two following ways. The first way is + * to take a context freshly initialised with + * mbedtls_ssl_init() and call mbedtls_ssl_setup() on it with + * the same ::mbedtls_ssl_config structure that was used in + * the original connection. The second way is to + * call mbedtls_ssl_session_reset() on a context that was + * previously prepared as above but used in the meantime. + * Either way, you must not use the context to perform a + * handshake between calling mbedtls_ssl_setup() or + * mbedtls_ssl_session_reset() and calling this function. You + * may however call other setter functions in that time frame + * as indicated in the note below. + * + * \note Before or after calling this function successfully, you + * also need to configure some connection-specific callbacks + * and settings before you can use the connection again + * (unless they were already set before calling + * mbedtls_ssl_session_reset() and the values are suitable for + * the present connection). Specifically, you want to call + * at least mbedtls_ssl_set_bio(), + * mbedtls_ssl_set_timer_cb(), and + * mbedtls_ssl_set_user_data_n() or + * mbedtls_ssl_set_user_data_p() if they were set originally. + * All other SSL setter functions + * are not necessary to call, either because they're only used + * in handshakes, or because the setting is already saved. You + * might choose to call them anyway, for example in order to + * share code between the cases of establishing a new + * connection and the case of loading an already-established + * connection. + * + * \note If you have new information about the path MTU, you want to + * call mbedtls_ssl_set_mtu() after calling this function, as + * otherwise this function would overwrite your + * newly-configured value with the value that was active when + * the context was saved. + * + * \note When this function returns an error code, it calls + * mbedtls_ssl_free() on \p ssl. In this case, you need to + * prepare the context with the usual sequence starting with a + * call to mbedtls_ssl_init() if you want to use it again. + * + * \param ssl The SSL context structure to be populated. It must have + * been prepared as described in the note above. + * \param buf The buffer holding the serialized connection data. It must + * be a readable buffer of at least \p len bytes. + * \param len The size of the serialized data in bytes. + * + * \return \c 0 if successful. + * \return #MBEDTLS_ERR_SSL_ALLOC_FAILED if memory allocation failed. + * \return #MBEDTLS_ERR_SSL_VERSION_MISMATCH if the serialized data + * comes from a different Mbed TLS version or build. + * \return #MBEDTLS_ERR_SSL_BAD_INPUT_DATA if input data is invalid. + */ +int mbedtls_ssl_context_load(mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len); +#endif /* MBEDTLS_SSL_CONTEXT_SERIALIZATION */ + +/** + * \brief Initialize an SSL configuration context + * Just makes the context ready for + * mbedtls_ssl_config_defaults() or mbedtls_ssl_config_free(). + * + * \note You need to call mbedtls_ssl_config_defaults() unless you + * manually set all of the relevant fields yourself. + * + * \param conf SSL configuration context + */ +void mbedtls_ssl_config_init(mbedtls_ssl_config *conf); + +/** + * \brief Load reasonable default SSL configuration values. + * (You need to call mbedtls_ssl_config_init() first.) + * + * \param conf SSL configuration context + * \param endpoint MBEDTLS_SSL_IS_CLIENT or MBEDTLS_SSL_IS_SERVER + * \param transport MBEDTLS_SSL_TRANSPORT_STREAM for TLS, or + * MBEDTLS_SSL_TRANSPORT_DATAGRAM for DTLS + * \param preset a MBEDTLS_SSL_PRESET_XXX value + * + * \note See \c mbedtls_ssl_conf_transport() for notes on DTLS. + * + * \return 0 if successful, or + * MBEDTLS_ERR_XXX_ALLOC_FAILED on memory allocation error. + */ +int mbedtls_ssl_config_defaults(mbedtls_ssl_config *conf, + int endpoint, int transport, int preset); + +/** + * \brief Free an SSL configuration context + * + * \param conf SSL configuration context + */ +void mbedtls_ssl_config_free(mbedtls_ssl_config *conf); + +/** + * \brief Initialize SSL session structure + * + * \param session SSL session + */ +void mbedtls_ssl_session_init(mbedtls_ssl_session *session); + +/** + * \brief Free referenced items in an SSL session including the + * peer certificate and clear memory + * + * \note A session object can be freed even if the SSL context + * that was used to retrieve the session is still in use. + * + * \param session SSL session + */ +void mbedtls_ssl_session_free(mbedtls_ssl_session *session); + +/** + * \brief TLS-PRF function for key derivation. + * + * \param prf The tls_prf type function type to be used. + * \param secret Secret for the key derivation function. + * \param slen Length of the secret. + * \param label String label for the key derivation function, + * terminated with null character. + * \param random Random bytes. + * \param rlen Length of the random bytes buffer. + * \param dstbuf The buffer holding the derived key. + * \param dlen Length of the output buffer. + * + * \return 0 on success. An SSL specific error on failure. + */ +int mbedtls_ssl_tls_prf(const mbedtls_tls_prf_types prf, + const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen); + +#ifdef __cplusplus +} +#endif + +#endif /* ssl.h */ diff --git a/include/mbedtls/ssl_cache.h b/include/mbedtls/ssl_cache.h new file mode 100644 index 0000000..a1307b4 --- /dev/null +++ b/include/mbedtls/ssl_cache.h @@ -0,0 +1,187 @@ +/** + * \file ssl_cache.h + * + * \brief SSL session cache implementation + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_SSL_CACHE_H +#define MBEDTLS_SSL_CACHE_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/ssl.h" + +#if defined(MBEDTLS_THREADING_C) +#include "mbedtls/threading.h" +#endif + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in mbedtls_config.h or define them on the compiler command line. + * \{ + */ + +#if !defined(MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT) +#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT 86400 /*!< 1 day */ +#endif + +#if !defined(MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES) +#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES 50 /*!< Maximum entries in cache */ +#endif + +/** \} name SECTION: Module settings */ + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct mbedtls_ssl_cache_context mbedtls_ssl_cache_context; +typedef struct mbedtls_ssl_cache_entry mbedtls_ssl_cache_entry; + +/** + * \brief This structure is used for storing cache entries + */ +struct mbedtls_ssl_cache_entry { +#if defined(MBEDTLS_HAVE_TIME) + mbedtls_time_t MBEDTLS_PRIVATE(timestamp); /*!< entry timestamp */ +#endif + + unsigned char MBEDTLS_PRIVATE(session_id)[32]; /*!< session ID */ + size_t MBEDTLS_PRIVATE(session_id_len); + + unsigned char *MBEDTLS_PRIVATE(session); /*!< serialized session */ + size_t MBEDTLS_PRIVATE(session_len); + + mbedtls_ssl_cache_entry *MBEDTLS_PRIVATE(next); /*!< chain pointer */ +}; + +/** + * \brief Cache context + */ +struct mbedtls_ssl_cache_context { + mbedtls_ssl_cache_entry *MBEDTLS_PRIVATE(chain); /*!< start of the chain */ + int MBEDTLS_PRIVATE(timeout); /*!< cache entry timeout */ + int MBEDTLS_PRIVATE(max_entries); /*!< maximum entries */ +#if defined(MBEDTLS_THREADING_C) + mbedtls_threading_mutex_t MBEDTLS_PRIVATE(mutex); /*!< mutex */ +#endif +}; + +/** + * \brief Initialize an SSL cache context + * + * \param cache SSL cache context + */ +void mbedtls_ssl_cache_init(mbedtls_ssl_cache_context *cache); + +/** + * \brief Cache get callback implementation + * (Thread-safe if MBEDTLS_THREADING_C is enabled) + * + * \param data The SSL cache context to use. + * \param session_id The pointer to the buffer holding the session ID + * for the session to load. + * \param session_id_len The length of \p session_id in bytes. + * \param session The address at which to store the session + * associated with \p session_id, if present. + * + * \return \c 0 on success. + * \return #MBEDTLS_ERR_SSL_CACHE_ENTRY_NOT_FOUND if there is + * no cache entry with specified session ID found, or + * any other negative error code for other failures. + */ +int mbedtls_ssl_cache_get(void *data, + unsigned char const *session_id, + size_t session_id_len, + mbedtls_ssl_session *session); + +/** + * \brief Cache set callback implementation + * (Thread-safe if MBEDTLS_THREADING_C is enabled) + * + * \param data The SSL cache context to use. + * \param session_id The pointer to the buffer holding the session ID + * associated to \p session. + * \param session_id_len The length of \p session_id in bytes. + * \param session The session to store. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +int mbedtls_ssl_cache_set(void *data, + unsigned char const *session_id, + size_t session_id_len, + const mbedtls_ssl_session *session); + +/** + * \brief Remove the cache entry by the session ID + * (Thread-safe if MBEDTLS_THREADING_C is enabled) + * + * \param data The SSL cache context to use. + * \param session_id The pointer to the buffer holding the session ID + * associated to session. + * \param session_id_len The length of \p session_id in bytes. + * + * \return \c 0 on success. This indicates the cache entry for + * the session with provided ID is removed or does not + * exist. + * \return A negative error code on failure. + */ +int mbedtls_ssl_cache_remove(void *data, + unsigned char const *session_id, + size_t session_id_len); + +#if defined(MBEDTLS_HAVE_TIME) +/** + * \brief Set the cache timeout + * (Default: MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT (1 day)) + * + * A timeout of 0 indicates no timeout. + * + * \param cache SSL cache context + * \param timeout cache entry timeout in seconds + */ +void mbedtls_ssl_cache_set_timeout(mbedtls_ssl_cache_context *cache, int timeout); + +/** + * \brief Get the cache timeout + * + * A timeout of 0 indicates no timeout. + * + * \param cache SSL cache context + * + * \return cache entry timeout in seconds + */ +static inline int mbedtls_ssl_cache_get_timeout(mbedtls_ssl_cache_context *cache) +{ + return cache->MBEDTLS_PRIVATE(timeout); +} +#endif /* MBEDTLS_HAVE_TIME */ + +/** + * \brief Set the maximum number of cache entries + * (Default: MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES (50)) + * + * \param cache SSL cache context + * \param max cache entry maximum + */ +void mbedtls_ssl_cache_set_max_entries(mbedtls_ssl_cache_context *cache, int max); + +/** + * \brief Free referenced items in a cache context and clear memory + * + * \param cache SSL cache context + */ +void mbedtls_ssl_cache_free(mbedtls_ssl_cache_context *cache); + +#ifdef __cplusplus +} +#endif + +#endif /* ssl_cache.h */ diff --git a/include/mbedtls/ssl_ciphersuites.h b/include/mbedtls/ssl_ciphersuites.h new file mode 100644 index 0000000..8cecbb6 --- /dev/null +++ b/include/mbedtls/ssl_ciphersuites.h @@ -0,0 +1,616 @@ +/** + * \file ssl_ciphersuites.h + * + * \brief SSL Ciphersuites for Mbed TLS + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_SSL_CIPHERSUITES_H +#define MBEDTLS_SSL_CIPHERSUITES_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/pk.h" +#include "mbedtls/cipher.h" +#include "mbedtls/md.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Supported ciphersuites (Official IANA names) + */ +#define MBEDTLS_TLS_RSA_WITH_NULL_MD5 0x01 /**< Weak! */ +#define MBEDTLS_TLS_RSA_WITH_NULL_SHA 0x02 /**< Weak! */ + +#define MBEDTLS_TLS_PSK_WITH_NULL_SHA 0x2C /**< Weak! */ +#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA 0x2D /**< Weak! */ +#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA 0x2E /**< Weak! */ +#define MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA 0x2F + +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA 0x33 +#define MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA 0x35 +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA 0x39 + +#define MBEDTLS_TLS_RSA_WITH_NULL_SHA256 0x3B /**< Weak! */ +#define MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256 0x3C /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256 0x3D /**< TLS 1.2 */ + +#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA 0x41 +#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA 0x45 + +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 0x67 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 0x6B /**< TLS 1.2 */ + +#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA 0x84 +#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA 0x88 + +#define MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA 0x8C +#define MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA 0x8D + +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA 0x90 +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA 0x91 + +#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA 0x94 +#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA 0x95 + +#define MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256 0x9C /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384 0x9D /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 0x9E /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 0x9F /**< TLS 1.2 */ + +#define MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256 0xA8 /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384 0xA9 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 0xAA /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 0xAB /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 0xAC /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 0xAD /**< TLS 1.2 */ + +#define MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256 0xAE +#define MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384 0xAF +#define MBEDTLS_TLS_PSK_WITH_NULL_SHA256 0xB0 /**< Weak! */ +#define MBEDTLS_TLS_PSK_WITH_NULL_SHA384 0xB1 /**< Weak! */ + +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 0xB2 +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 0xB3 +#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256 0xB4 /**< Weak! */ +#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384 0xB5 /**< Weak! */ + +#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 0xB6 +#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 0xB7 +#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256 0xB8 /**< Weak! */ +#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384 0xB9 /**< Weak! */ + +#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xBA /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xBE /**< TLS 1.2 */ + +#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 0xC0 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 0xC4 /**< TLS 1.2 */ + +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA 0xC001 /**< Weak! */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA 0xC004 +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA 0xC005 + +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA 0xC006 /**< Weak! */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 0xC009 +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 0xC00A + +#define MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA 0xC00B /**< Weak! */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA 0xC00E +#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA 0xC00F + +#define MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA 0xC010 /**< Weak! */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 0xC013 +#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 0xC014 + +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 0xC023 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 0xC024 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 0xC025 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 0xC026 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 0xC027 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 0xC028 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 0xC029 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 0xC02A /**< TLS 1.2 */ + +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 0xC02B /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 0xC02C /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 0xC02D /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 0xC02E /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 0xC02F /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 0xC030 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 0xC031 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 0xC032 /**< TLS 1.2 */ + +#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA 0xC035 +#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA 0xC036 +#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 0xC037 +#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 0xC038 +#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA 0xC039 +#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256 0xC03A +#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384 0xC03B + +#define MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256 0xC03C /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384 0xC03D /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256 0xC044 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384 0xC045 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256 0xC048 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384 0xC049 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256 0xC04A /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384 0xC04B /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256 0xC04C /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384 0xC04D /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256 0xC04E /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384 0xC04F /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256 0xC050 /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384 0xC051 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256 0xC052 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384 0xC053 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256 0xC05C /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384 0xC05D /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256 0xC05E /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384 0xC05F /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 0xC060 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 0xC061 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256 0xC062 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384 0xC063 /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256 0xC064 /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384 0xC065 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256 0xC066 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384 0xC067 /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256 0xC068 /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384 0xC069 /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256 0xC06A /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384 0xC06B /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256 0xC06C /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384 0xC06D /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256 0xC06E /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384 0xC06F /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256 0xC070 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384 0xC071 /**< TLS 1.2 */ + +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 0xC072 +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 0xC073 +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 0xC074 +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 0xC075 +#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xC076 +#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 0xC077 +#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xC078 +#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 0xC079 + +#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 0xC07A /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 0xC07B /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 0xC07C /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 0xC07D /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 0xC086 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 0xC087 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 0xC088 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 0xC089 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 0xC08A /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 0xC08B /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 0xC08C /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 0xC08D /**< TLS 1.2 */ + +#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 0xC08E /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 0xC08F /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 0xC090 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 0xC091 /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 0xC092 /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 0xC093 /**< TLS 1.2 */ + +#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC094 +#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC095 +#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC096 +#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC097 +#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC098 +#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC099 +#define MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC09A +#define MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC09B + +#define MBEDTLS_TLS_RSA_WITH_AES_128_CCM 0xC09C /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_AES_256_CCM 0xC09D /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM 0xC09E /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM 0xC09F /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8 0xC0A0 /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8 0xC0A1 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8 0xC0A2 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8 0xC0A3 /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_AES_128_CCM 0xC0A4 /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_AES_256_CCM 0xC0A5 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM 0xC0A6 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM 0xC0A7 /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8 0xC0A8 /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8 0xC0A9 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8 0xC0AA /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8 0xC0AB /**< TLS 1.2 */ +/* The last two are named with PSK_DHE in the RFC, which looks like a typo */ + +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM 0xC0AC /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM 0xC0AD /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 0xC0AE /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 0xC0AF /**< TLS 1.2 */ + +#define MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8 0xC0FF /**< experimental */ + +/* RFC 7905 */ +#define MBEDTLS_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 0xCCA8 /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 0xCCA9 /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 0xCCAA /**< TLS 1.2 */ +#define MBEDTLS_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256 0xCCAB /**< TLS 1.2 */ +#define MBEDTLS_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 0xCCAC /**< TLS 1.2 */ +#define MBEDTLS_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256 0xCCAD /**< TLS 1.2 */ +#define MBEDTLS_TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256 0xCCAE /**< TLS 1.2 */ + +/* RFC 8446, Appendix B.4 */ +#define MBEDTLS_TLS1_3_AES_128_GCM_SHA256 0x1301 /**< TLS 1.3 */ +#define MBEDTLS_TLS1_3_AES_256_GCM_SHA384 0x1302 /**< TLS 1.3 */ +#define MBEDTLS_TLS1_3_CHACHA20_POLY1305_SHA256 0x1303 /**< TLS 1.3 */ +#define MBEDTLS_TLS1_3_AES_128_CCM_SHA256 0x1304 /**< TLS 1.3 */ +#define MBEDTLS_TLS1_3_AES_128_CCM_8_SHA256 0x1305 /**< TLS 1.3 */ + +/* Reminder: update mbedtls_ssl_premaster_secret when adding a new key exchange. + * Reminder: update MBEDTLS_KEY_EXCHANGE__xxx below + */ +typedef enum { + MBEDTLS_KEY_EXCHANGE_NONE = 0, + MBEDTLS_KEY_EXCHANGE_RSA, + MBEDTLS_KEY_EXCHANGE_DHE_RSA, + MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, + MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, + MBEDTLS_KEY_EXCHANGE_PSK, + MBEDTLS_KEY_EXCHANGE_DHE_PSK, + MBEDTLS_KEY_EXCHANGE_RSA_PSK, + MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, + MBEDTLS_KEY_EXCHANGE_ECDH_RSA, + MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, + MBEDTLS_KEY_EXCHANGE_ECJPAKE, +} mbedtls_key_exchange_type_t; + +/* Key exchanges using a certificate */ +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED +#endif + +/* Key exchanges in either TLS 1.2 or 1.3 which are using an ECDSA + * signature */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_WITH_ECDSA_ANY_ENABLED +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) || \ + defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED) +#define MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED +#endif + +/* Key exchanges allowing client certificate requests. + * + * Note: that's almost the same as MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED + * above, except RSA-PSK uses a server certificate but no client cert. + * + * Note: this difference is specific to TLS 1.2, as with TLS 1.3, things are + * more symmetrical: client certs and server certs are either both allowed + * (Ephemeral mode) or both disallowed (PSK and PKS-Ephemeral modes). + */ +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED +#endif + +/* Helper to state that certificate-based client authentication through ECDSA + * is supported in TLS 1.2 */ +#if defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED) && \ + defined(MBEDTLS_PK_CAN_ECDSA_SIGN) && defined(MBEDTLS_PK_CAN_ECDSA_VERIFY) +#define MBEDTLS_KEY_EXCHANGE_ECDSA_CERT_REQ_ALLOWED_ENABLED +#endif + +/* ECDSA required for certificates in either TLS 1.2 or 1.3 */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDSA_CERT_REQ_ALLOWED_ENABLED) || \ + defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_ECDSA_CERT_REQ_ANY_ALLOWED_ENABLED +#endif + +/* Key exchanges involving server signature in ServerKeyExchange */ +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED +#endif + +/* Key exchanges using ECDH */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_SOME_ECDH_ENABLED +#endif + +/* Key exchanges that don't involve ephemeral keys */ +#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDH_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_SOME_NON_PFS_ENABLED +#endif + +/* Key exchanges that involve ephemeral keys */ +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_SOME_PFS_ENABLED +#endif + +/* Key exchanges using a PSK */ +#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED +#endif + +/* Key exchanges using DHE */ +#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_SOME_DHE_ENABLED +#endif + +/* Key exchanges using ECDHE */ +#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_SOME_ECDHE_ENABLED +#endif + +/* TLS 1.2 key exchanges using ECDH or ECDHE*/ +#if defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDH_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDHE_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_SOME_ECDH_OR_ECDHE_1_2_ENABLED +#endif + +/* TLS 1.3 PSK key exchanges */ +#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED) || \ + defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED) +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED +#endif + +/* TLS 1.2 or 1.3 key exchanges with PSK */ +#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) || \ + defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED) +#define MBEDTLS_SSL_HANDSHAKE_WITH_PSK_ENABLED +#endif + +/* TLS 1.3 ephemeral key exchanges */ +#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED) || \ + defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED) +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_EPHEMERAL_ENABLED +#endif + +/* TLS 1.3 key exchanges using ECDHE */ +#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_EPHEMERAL_ENABLED) && \ + defined(PSA_WANT_ALG_ECDH) +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_ECDHE_ENABLED +#endif + +/* TLS 1.2 or 1.3 key exchanges using ECDH or ECDHE */ +#if defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDH_OR_ECDHE_1_2_ENABLED) || \ + defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_ECDHE_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_SOME_ECDH_OR_ECDHE_ANY_ENABLED +#endif + +/* TLS 1.2 XXDH key exchanges: ECDH or ECDHE or FFDH */ +#if (defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDH_OR_ECDHE_1_2_ENABLED) || \ + defined(MBEDTLS_KEY_EXCHANGE_SOME_DHE_ENABLED)) +#define MBEDTLS_KEY_EXCHANGE_SOME_XXDH_1_2_ENABLED +#endif + +/* The handshake params structure has a set of fields called xxdh_psa which are used: + * - by TLS 1.2 with `USE_PSA` to do ECDH or ECDHE; + * - by TLS 1.3 to do ECDHE or FFDHE. + * The following macros can be used to guard their declaration and use. + */ +#if defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDH_OR_ECDHE_1_2_ENABLED) && \ + defined(MBEDTLS_USE_PSA_CRYPTO) +#define MBEDTLS_KEY_EXCHANGE_SOME_XXDH_PSA_1_2_ENABLED +#endif +#if defined(MBEDTLS_KEY_EXCHANGE_SOME_XXDH_PSA_1_2_ENABLED) || \ + defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_EPHEMERAL_ENABLED) +#define MBEDTLS_KEY_EXCHANGE_SOME_XXDH_PSA_ANY_ENABLED +#endif + +typedef struct mbedtls_ssl_ciphersuite_t mbedtls_ssl_ciphersuite_t; + +#define MBEDTLS_CIPHERSUITE_WEAK 0x01 /**< Weak ciphersuite flag */ +#define MBEDTLS_CIPHERSUITE_SHORT_TAG 0x02 /**< Short authentication tag, + eg for CCM_8 */ +#define MBEDTLS_CIPHERSUITE_NODTLS 0x04 /**< Can't be used with DTLS */ + +/** + * \brief This structure is used for storing ciphersuite information + * + * \note members are defined using integral types instead of enums + * in order to pack structure and reduce memory usage by internal + * \c ciphersuite_definitions[] + */ +struct mbedtls_ssl_ciphersuite_t { + int MBEDTLS_PRIVATE(id); + const char *MBEDTLS_PRIVATE(name); + + uint8_t MBEDTLS_PRIVATE(cipher); /* mbedtls_cipher_type_t */ + uint8_t MBEDTLS_PRIVATE(mac); /* mbedtls_md_type_t */ + uint8_t MBEDTLS_PRIVATE(key_exchange); /* mbedtls_key_exchange_type_t */ + uint8_t MBEDTLS_PRIVATE(flags); + + uint16_t MBEDTLS_PRIVATE(min_tls_version); /* mbedtls_ssl_protocol_version */ + uint16_t MBEDTLS_PRIVATE(max_tls_version); /* mbedtls_ssl_protocol_version */ +}; + +const int *mbedtls_ssl_list_ciphersuites(void); + +const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_string(const char *ciphersuite_name); +const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_id(int ciphersuite_id); + +#if defined(MBEDTLS_PK_C) +mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_pk_alg(const mbedtls_ssl_ciphersuite_t *info); +#if defined(MBEDTLS_USE_PSA_CRYPTO) +psa_algorithm_t mbedtls_ssl_get_ciphersuite_sig_pk_psa_alg(const mbedtls_ssl_ciphersuite_t *info); +psa_key_usage_t mbedtls_ssl_get_ciphersuite_sig_pk_psa_usage(const mbedtls_ssl_ciphersuite_t *info); +#endif +mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_alg(const mbedtls_ssl_ciphersuite_t *info); +#endif + +int mbedtls_ssl_ciphersuite_uses_ec(const mbedtls_ssl_ciphersuite_t *info); +int mbedtls_ssl_ciphersuite_uses_psk(const mbedtls_ssl_ciphersuite_t *info); + +static inline const char *mbedtls_ssl_ciphersuite_get_name(const mbedtls_ssl_ciphersuite_t *info) +{ + return info->MBEDTLS_PRIVATE(name); +} + +size_t mbedtls_ssl_ciphersuite_get_cipher_key_bitlen(const mbedtls_ssl_ciphersuite_t *info); + +#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PFS_ENABLED) +static inline int mbedtls_ssl_ciphersuite_has_pfs(const mbedtls_ssl_ciphersuite_t *info) +{ + switch (info->MBEDTLS_PRIVATE(key_exchange)) { + case MBEDTLS_KEY_EXCHANGE_DHE_RSA: + case MBEDTLS_KEY_EXCHANGE_DHE_PSK: + case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK: + case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: + case MBEDTLS_KEY_EXCHANGE_ECJPAKE: + return 1; + + default: + return 0; + } +} +#endif /* MBEDTLS_KEY_EXCHANGE_SOME_PFS_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_SOME_NON_PFS_ENABLED) +static inline int mbedtls_ssl_ciphersuite_no_pfs(const mbedtls_ssl_ciphersuite_t *info) +{ + switch (info->MBEDTLS_PRIVATE(key_exchange)) { + case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: + case MBEDTLS_KEY_EXCHANGE_RSA: + case MBEDTLS_KEY_EXCHANGE_PSK: + case MBEDTLS_KEY_EXCHANGE_RSA_PSK: + return 1; + + default: + return 0; + } +} +#endif /* MBEDTLS_KEY_EXCHANGE_SOME_NON_PFS_ENABLED */ + +#if defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDH_ENABLED) +static inline int mbedtls_ssl_ciphersuite_uses_ecdh(const mbedtls_ssl_ciphersuite_t *info) +{ + switch (info->MBEDTLS_PRIVATE(key_exchange)) { + case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: + return 1; + + default: + return 0; + } +} +#endif /* MBEDTLS_KEY_EXCHANGE_SOME_ECDH_ENABLED */ + +static inline int mbedtls_ssl_ciphersuite_cert_req_allowed(const mbedtls_ssl_ciphersuite_t *info) +{ + switch (info->MBEDTLS_PRIVATE(key_exchange)) { + case MBEDTLS_KEY_EXCHANGE_RSA: + case MBEDTLS_KEY_EXCHANGE_DHE_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: + return 1; + + default: + return 0; + } +} + +static inline int mbedtls_ssl_ciphersuite_uses_srv_cert(const mbedtls_ssl_ciphersuite_t *info) +{ + switch (info->MBEDTLS_PRIVATE(key_exchange)) { + case MBEDTLS_KEY_EXCHANGE_RSA: + case MBEDTLS_KEY_EXCHANGE_RSA_PSK: + case MBEDTLS_KEY_EXCHANGE_DHE_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: + return 1; + + default: + return 0; + } +} + +#if defined(MBEDTLS_KEY_EXCHANGE_SOME_DHE_ENABLED) +static inline int mbedtls_ssl_ciphersuite_uses_dhe(const mbedtls_ssl_ciphersuite_t *info) +{ + switch (info->MBEDTLS_PRIVATE(key_exchange)) { + case MBEDTLS_KEY_EXCHANGE_DHE_RSA: + case MBEDTLS_KEY_EXCHANGE_DHE_PSK: + return 1; + + default: + return 0; + } +} +#endif /* MBEDTLS_KEY_EXCHANGE_SOME_DHE_ENABLED) */ + +#if defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDHE_ENABLED) +static inline int mbedtls_ssl_ciphersuite_uses_ecdhe(const mbedtls_ssl_ciphersuite_t *info) +{ + switch (info->MBEDTLS_PRIVATE(key_exchange)) { + case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK: + return 1; + + default: + return 0; + } +} +#endif /* MBEDTLS_KEY_EXCHANGE_SOME_ECDHE_ENABLED) */ + +#if defined(MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED) +static inline int mbedtls_ssl_ciphersuite_uses_server_signature( + const mbedtls_ssl_ciphersuite_t *info) +{ + switch (info->MBEDTLS_PRIVATE(key_exchange)) { + case MBEDTLS_KEY_EXCHANGE_DHE_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: + case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: + return 1; + + default: + return 0; + } +} +#endif /* MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED */ + +#ifdef __cplusplus +} +#endif + +#endif /* ssl_ciphersuites.h */ diff --git a/include/mbedtls/ssl_cookie.h b/include/mbedtls/ssl_cookie.h new file mode 100644 index 0000000..71c258e --- /dev/null +++ b/include/mbedtls/ssl_cookie.h @@ -0,0 +1,106 @@ +/** + * \file ssl_cookie.h + * + * \brief DTLS cookie callbacks implementation + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_SSL_COOKIE_H +#define MBEDTLS_SSL_COOKIE_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/ssl.h" + +#if !defined(MBEDTLS_USE_PSA_CRYPTO) +#if defined(MBEDTLS_THREADING_C) +#include "mbedtls/threading.h" +#endif +#endif /* !MBEDTLS_USE_PSA_CRYPTO */ + +/** + * \name SECTION: Module settings + * + * The configuration options you can set for this module are in this section. + * Either change them in mbedtls_config.h or define them on the compiler command line. + * \{ + */ +#ifndef MBEDTLS_SSL_COOKIE_TIMEOUT +#define MBEDTLS_SSL_COOKIE_TIMEOUT 60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */ +#endif + +/** \} name SECTION: Module settings */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Context for the default cookie functions. + */ +typedef struct mbedtls_ssl_cookie_ctx { +#if defined(MBEDTLS_USE_PSA_CRYPTO) + mbedtls_svc_key_id_t MBEDTLS_PRIVATE(psa_hmac_key); /*!< key id for the HMAC portion */ + psa_algorithm_t MBEDTLS_PRIVATE(psa_hmac_alg); /*!< key algorithm for the HMAC portion */ +#else + mbedtls_md_context_t MBEDTLS_PRIVATE(hmac_ctx); /*!< context for the HMAC portion */ +#endif /* MBEDTLS_USE_PSA_CRYPTO */ +#if !defined(MBEDTLS_HAVE_TIME) + unsigned long MBEDTLS_PRIVATE(serial); /*!< serial number for expiration */ +#endif + unsigned long MBEDTLS_PRIVATE(timeout); /*!< timeout delay, in seconds if HAVE_TIME, + or in number of tickets issued */ + +#if !defined(MBEDTLS_USE_PSA_CRYPTO) +#if defined(MBEDTLS_THREADING_C) + mbedtls_threading_mutex_t MBEDTLS_PRIVATE(mutex); +#endif +#endif /* !MBEDTLS_USE_PSA_CRYPTO */ +} mbedtls_ssl_cookie_ctx; + +/** + * \brief Initialize cookie context + */ +void mbedtls_ssl_cookie_init(mbedtls_ssl_cookie_ctx *ctx); + +/** + * \brief Setup cookie context (generate keys) + */ +int mbedtls_ssl_cookie_setup(mbedtls_ssl_cookie_ctx *ctx, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +/** + * \brief Set expiration delay for cookies + * (Default MBEDTLS_SSL_COOKIE_TIMEOUT) + * + * \param ctx Cookie context + * \param delay Delay, in seconds if HAVE_TIME, or in number of cookies + * issued in the meantime. + * 0 to disable expiration (NOT recommended) + */ +void mbedtls_ssl_cookie_set_timeout(mbedtls_ssl_cookie_ctx *ctx, unsigned long delay); + +/** + * \brief Free cookie context + */ +void mbedtls_ssl_cookie_free(mbedtls_ssl_cookie_ctx *ctx); + +/** + * \brief Generate cookie, see \c mbedtls_ssl_cookie_write_t + */ +mbedtls_ssl_cookie_write_t mbedtls_ssl_cookie_write; + +/** + * \brief Verify cookie, see \c mbedtls_ssl_cookie_write_t + */ +mbedtls_ssl_cookie_check_t mbedtls_ssl_cookie_check; + +#ifdef __cplusplus +} +#endif + +#endif /* ssl_cookie.h */ diff --git a/include/mbedtls/ssl_ticket.h b/include/mbedtls/ssl_ticket.h new file mode 100644 index 0000000..6d59c12 --- /dev/null +++ b/include/mbedtls/ssl_ticket.h @@ -0,0 +1,181 @@ +/** + * \file ssl_ticket.h + * + * \brief TLS server ticket callbacks implementation + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_SSL_TICKET_H +#define MBEDTLS_SSL_TICKET_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +/* + * This implementation of the session ticket callbacks includes key + * management, rotating the keys periodically in order to preserve forward + * secrecy, when MBEDTLS_HAVE_TIME is defined. + */ + +#include "mbedtls/ssl.h" +#include "mbedtls/cipher.h" + +#if defined(MBEDTLS_HAVE_TIME) +#include "mbedtls/platform_time.h" +#endif + +#if defined(MBEDTLS_USE_PSA_CRYPTO) +#include "psa/crypto.h" +#endif + +#if defined(MBEDTLS_THREADING_C) +#include "mbedtls/threading.h" +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +#define MBEDTLS_SSL_TICKET_MAX_KEY_BYTES 32 /*!< Max supported key length in bytes */ +#define MBEDTLS_SSL_TICKET_KEY_NAME_BYTES 4 /*!< key name length in bytes */ + +/** + * \brief Information for session ticket protection + */ +typedef struct mbedtls_ssl_ticket_key { + unsigned char MBEDTLS_PRIVATE(name)[MBEDTLS_SSL_TICKET_KEY_NAME_BYTES]; + /*!< random key identifier */ +#if defined(MBEDTLS_HAVE_TIME) + mbedtls_time_t MBEDTLS_PRIVATE(generation_time); /*!< key generation timestamp (seconds) */ +#endif +#if !defined(MBEDTLS_USE_PSA_CRYPTO) + mbedtls_cipher_context_t MBEDTLS_PRIVATE(ctx); /*!< context for auth enc/decryption */ +#else + mbedtls_svc_key_id_t MBEDTLS_PRIVATE(key); /*!< key used for auth enc/decryption */ + psa_algorithm_t MBEDTLS_PRIVATE(alg); /*!< algorithm of auth enc/decryption */ + psa_key_type_t MBEDTLS_PRIVATE(key_type); /*!< key type */ + size_t MBEDTLS_PRIVATE(key_bits); /*!< key length in bits */ +#endif +} +mbedtls_ssl_ticket_key; + +/** + * \brief Context for session ticket handling functions + */ +typedef struct mbedtls_ssl_ticket_context { + mbedtls_ssl_ticket_key MBEDTLS_PRIVATE(keys)[2]; /*!< ticket protection keys */ + unsigned char MBEDTLS_PRIVATE(active); /*!< index of the currently active key */ + + uint32_t MBEDTLS_PRIVATE(ticket_lifetime); /*!< lifetime of tickets in seconds */ + + /** Callback for getting (pseudo-)random numbers */ + int(*MBEDTLS_PRIVATE(f_rng))(void *, unsigned char *, size_t); + void *MBEDTLS_PRIVATE(p_rng); /*!< context for the RNG function */ + +#if defined(MBEDTLS_THREADING_C) + mbedtls_threading_mutex_t MBEDTLS_PRIVATE(mutex); +#endif +} +mbedtls_ssl_ticket_context; + +/** + * \brief Initialize a ticket context. + * (Just make it ready for mbedtls_ssl_ticket_setup() + * or mbedtls_ssl_ticket_free().) + * + * \param ctx Context to be initialized + */ +void mbedtls_ssl_ticket_init(mbedtls_ssl_ticket_context *ctx); + +/** + * \brief Prepare context to be actually used + * + * \param ctx Context to be set up + * \param f_rng RNG callback function (mandatory) + * \param p_rng RNG callback context + * \param cipher AEAD cipher to use for ticket protection. + * Recommended value: MBEDTLS_CIPHER_AES_256_GCM. + * \param lifetime Tickets lifetime in seconds + * Recommended value: 86400 (one day). + * + * \note It is highly recommended to select a cipher that is at + * least as strong as the strongest ciphersuite + * supported. Usually that means a 256-bit key. + * + * \note The lifetime of the keys is twice the lifetime of tickets. + * It is recommended to pick a reasonable lifetime so as not + * to negate the benefits of forward secrecy. + * + * \return 0 if successful, + * or a specific MBEDTLS_ERR_XXX error code + */ +int mbedtls_ssl_ticket_setup(mbedtls_ssl_ticket_context *ctx, + int (*f_rng)(void *, unsigned char *, size_t), void *p_rng, + mbedtls_cipher_type_t cipher, + uint32_t lifetime); + +/** + * \brief Rotate session ticket encryption key to new specified key. + * Provides for external control of session ticket encryption + * key rotation, e.g. for synchronization between different + * machines. If this function is not used, or if not called + * before ticket lifetime expires, then a new session ticket + * encryption key is generated internally in order to avoid + * unbounded session ticket encryption key lifetimes. + * + * \param ctx Context to be set up + * \param name Session ticket encryption key name + * \param nlength Session ticket encryption key name length in bytes + * \param k Session ticket encryption key + * \param klength Session ticket encryption key length in bytes + * \param lifetime Tickets lifetime in seconds + * Recommended value: 86400 (one day). + * + * \note \c name and \c k are recommended to be cryptographically + * random data. + * + * \note \c nlength must match sizeof( ctx->name ) + * + * \note \c klength must be sufficient for use by cipher specified + * to \c mbedtls_ssl_ticket_setup + * + * \note The lifetime of the keys is twice the lifetime of tickets. + * It is recommended to pick a reasonable lifetime so as not + * to negate the benefits of forward secrecy. + * + * \return 0 if successful, + * or a specific MBEDTLS_ERR_XXX error code + */ +int mbedtls_ssl_ticket_rotate(mbedtls_ssl_ticket_context *ctx, + const unsigned char *name, size_t nlength, + const unsigned char *k, size_t klength, + uint32_t lifetime); + +/** + * \brief Implementation of the ticket write callback + * + * \note See \c mbedtls_ssl_ticket_write_t for description + */ +mbedtls_ssl_ticket_write_t mbedtls_ssl_ticket_write; + +/** + * \brief Implementation of the ticket parse callback + * + * \note See \c mbedtls_ssl_ticket_parse_t for description + */ +mbedtls_ssl_ticket_parse_t mbedtls_ssl_ticket_parse; + +/** + * \brief Free a context's content and zeroize it. + * + * \param ctx Context to be cleaned up + */ +void mbedtls_ssl_ticket_free(mbedtls_ssl_ticket_context *ctx); + +#ifdef __cplusplus +} +#endif + +#endif /* ssl_ticket.h */ diff --git a/include/mbedtls/threading.h b/include/mbedtls/threading.h new file mode 100644 index 0000000..ed16a23 --- /dev/null +++ b/include/mbedtls/threading.h @@ -0,0 +1,105 @@ +/** + * \file threading.h + * + * \brief Threading abstraction layer + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_THREADING_H +#define MBEDTLS_THREADING_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stdlib.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/** Bad input parameters to function. */ +#define MBEDTLS_ERR_THREADING_BAD_INPUT_DATA -0x001C +/** Locking / unlocking / free failed with error code. */ +#define MBEDTLS_ERR_THREADING_MUTEX_ERROR -0x001E + +#if defined(MBEDTLS_THREADING_PTHREAD) +#include <pthread.h> +typedef struct mbedtls_threading_mutex_t { + pthread_mutex_t MBEDTLS_PRIVATE(mutex); + /* is_valid is 0 after a failed init or a free, and nonzero after a + * successful init. This field is not considered part of the public + * API of Mbed TLS and may change without notice. */ + char MBEDTLS_PRIVATE(is_valid); +} mbedtls_threading_mutex_t; +#endif + +#if defined(MBEDTLS_THREADING_ALT) +/* You should define the mbedtls_threading_mutex_t type in your header */ +#include "threading_alt.h" + +/** + * \brief Set your alternate threading implementation function + * pointers and initialize global mutexes. If used, this + * function must be called once in the main thread before any + * other Mbed TLS function is called, and + * mbedtls_threading_free_alt() must be called once in the main + * thread after all other Mbed TLS functions. + * + * \note mutex_init() and mutex_free() don't return a status code. + * If mutex_init() fails, it should leave its argument (the + * mutex) in a state such that mutex_lock() will fail when + * called with this argument. + * + * \param mutex_init the init function implementation + * \param mutex_free the free function implementation + * \param mutex_lock the lock function implementation + * \param mutex_unlock the unlock function implementation + */ +void mbedtls_threading_set_alt(void (*mutex_init)(mbedtls_threading_mutex_t *), + void (*mutex_free)(mbedtls_threading_mutex_t *), + int (*mutex_lock)(mbedtls_threading_mutex_t *), + int (*mutex_unlock)(mbedtls_threading_mutex_t *)); + +/** + * \brief Free global mutexes. + */ +void mbedtls_threading_free_alt(void); +#endif /* MBEDTLS_THREADING_ALT */ + +#if defined(MBEDTLS_THREADING_C) +/* + * The function pointers for mutex_init, mutex_free, mutex_ and mutex_unlock + * + * All these functions are expected to work or the result will be undefined. + */ +extern void (*mbedtls_mutex_init)(mbedtls_threading_mutex_t *mutex); +extern void (*mbedtls_mutex_free)(mbedtls_threading_mutex_t *mutex); +extern int (*mbedtls_mutex_lock)(mbedtls_threading_mutex_t *mutex); +extern int (*mbedtls_mutex_unlock)(mbedtls_threading_mutex_t *mutex); + +/* + * Global mutexes + */ +#if defined(MBEDTLS_FS_IO) +extern mbedtls_threading_mutex_t mbedtls_threading_readdir_mutex; +#endif + +#if defined(MBEDTLS_HAVE_TIME_DATE) && !defined(MBEDTLS_PLATFORM_GMTIME_R_ALT) +/* This mutex may or may not be used in the default definition of + * mbedtls_platform_gmtime_r(), but in order to determine that, + * we need to check POSIX features, hence modify _POSIX_C_SOURCE. + * With the current approach, this declaration is orphaned, lacking + * an accompanying definition, in case mbedtls_platform_gmtime_r() + * doesn't need it, but that's not a problem. */ +extern mbedtls_threading_mutex_t mbedtls_threading_gmtime_mutex; +#endif /* MBEDTLS_HAVE_TIME_DATE && !MBEDTLS_PLATFORM_GMTIME_R_ALT */ + +#endif /* MBEDTLS_THREADING_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* threading.h */ diff --git a/include/mbedtls/timing.h b/include/mbedtls/timing.h new file mode 100644 index 0000000..62ae102 --- /dev/null +++ b/include/mbedtls/timing.h @@ -0,0 +1,94 @@ +/** + * \file timing.h + * + * \brief Portable interface to timeouts and to the CPU cycle counter + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_TIMING_H +#define MBEDTLS_TIMING_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stdint.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_TIMING_ALT) +// Regular implementation +// + +/** + * \brief timer structure + */ +struct mbedtls_timing_hr_time { + uint64_t MBEDTLS_PRIVATE(opaque)[4]; +}; + +/** + * \brief Context for mbedtls_timing_set/get_delay() + */ +typedef struct mbedtls_timing_delay_context { + struct mbedtls_timing_hr_time MBEDTLS_PRIVATE(timer); + uint32_t MBEDTLS_PRIVATE(int_ms); + uint32_t MBEDTLS_PRIVATE(fin_ms); +} mbedtls_timing_delay_context; + +#else /* MBEDTLS_TIMING_ALT */ +#include "timing_alt.h" +#endif /* MBEDTLS_TIMING_ALT */ + +/* Internal use */ +unsigned long mbedtls_timing_get_timer(struct mbedtls_timing_hr_time *val, int reset); + +/** + * \brief Set a pair of delays to watch + * (See \c mbedtls_timing_get_delay().) + * + * \param data Pointer to timing data. + * Must point to a valid \c mbedtls_timing_delay_context struct. + * \param int_ms First (intermediate) delay in milliseconds. + * The effect if int_ms > fin_ms is unspecified. + * \param fin_ms Second (final) delay in milliseconds. + * Pass 0 to cancel the current delay. + * + * \note To set a single delay, either use \c mbedtls_timing_set_timer + * directly or use this function with int_ms == fin_ms. + */ +void mbedtls_timing_set_delay(void *data, uint32_t int_ms, uint32_t fin_ms); + +/** + * \brief Get the status of delays + * (Memory helper: number of delays passed.) + * + * \param data Pointer to timing data + * Must point to a valid \c mbedtls_timing_delay_context struct. + * + * \return -1 if cancelled (fin_ms = 0), + * 0 if none of the delays are passed, + * 1 if only the intermediate delay is passed, + * 2 if the final delay is passed. + */ +int mbedtls_timing_get_delay(void *data); + +/** + * \brief Get the final timing delay + * + * \param data Pointer to timing data + * Must point to a valid \c mbedtls_timing_delay_context struct. + * + * \return Final timing delay in milliseconds. + */ +uint32_t mbedtls_timing_get_final_delay( + const mbedtls_timing_delay_context *data); + +#ifdef __cplusplus +} +#endif + +#endif /* timing.h */ diff --git a/include/mbedtls/version.h b/include/mbedtls/version.h new file mode 100644 index 0000000..637f9d3 --- /dev/null +++ b/include/mbedtls/version.h @@ -0,0 +1,78 @@ +/** + * \file version.h + * + * \brief Run-time version information + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +/* + * This set of run-time variables can be used to determine the version number of + * the Mbed TLS library used. Compile-time version defines for the same can be + * found in build_info.h + */ +#ifndef MBEDTLS_VERSION_H +#define MBEDTLS_VERSION_H + +#include "mbedtls/build_info.h" + +#if defined(MBEDTLS_VERSION_C) + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * Get the version number. + * + * \return The constructed version number in the format + * MMNNPP00 (Major, Minor, Patch). + */ +unsigned int mbedtls_version_get_number(void); + +/** + * Get the version string ("x.y.z"). + * + * \param string The string that will receive the value. + * (Should be at least 9 bytes in size) + */ +void mbedtls_version_get_string(char *string); + +/** + * Get the full version string ("Mbed TLS x.y.z"). + * + * \param string The string that will receive the value. The Mbed TLS version + * string will use 18 bytes AT MOST including a terminating + * null byte. + * (So the buffer should be at least 18 bytes to receive this + * version string). + */ +void mbedtls_version_get_string_full(char *string); + +/** + * \brief Check if support for a feature was compiled into this + * Mbed TLS binary. This allows you to see at runtime if the + * library was for instance compiled with or without + * Multi-threading support. + * + * \note only checks against defines in the sections "System + * support", "Mbed TLS modules" and "Mbed TLS feature + * support" in mbedtls_config.h + * + * \param feature The string for the define to check (e.g. "MBEDTLS_AES_C") + * + * \return 0 if the feature is present, + * -1 if the feature is not present and + * -2 if support for feature checking as a whole was not + * compiled in. + */ +int mbedtls_version_check_feature(const char *feature); + +#ifdef __cplusplus +} +#endif + +#endif /* MBEDTLS_VERSION_C */ + +#endif /* version.h */ diff --git a/include/mbedtls/x509.h b/include/mbedtls/x509.h new file mode 100644 index 0000000..e2e0667 --- /dev/null +++ b/include/mbedtls/x509.h @@ -0,0 +1,550 @@ +/** + * \file x509.h + * + * \brief X.509 generic defines and structures + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_X509_H +#define MBEDTLS_X509_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/asn1.h" +#include "mbedtls/pk.h" + +#if defined(MBEDTLS_RSA_C) +#include "mbedtls/rsa.h" +#endif + +/** + * \addtogroup x509_module + * \{ + */ + +#if !defined(MBEDTLS_X509_MAX_INTERMEDIATE_CA) +/** + * Maximum number of intermediate CAs in a verification chain. + * That is, maximum length of the chain, excluding the end-entity certificate + * and the trusted root certificate. + * + * Set this to a low value to prevent an adversary from making you waste + * resources verifying an overlong certificate chain. + */ +#define MBEDTLS_X509_MAX_INTERMEDIATE_CA 8 +#endif + +/** + * \name X509 Error codes + * \{ + */ +/** Unavailable feature, e.g. RSA hashing/encryption combination. */ +#define MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE -0x2080 +/** Requested OID is unknown. */ +#define MBEDTLS_ERR_X509_UNKNOWN_OID -0x2100 +/** The CRT/CRL/CSR format is invalid, e.g. different type expected. */ +#define MBEDTLS_ERR_X509_INVALID_FORMAT -0x2180 +/** The CRT/CRL/CSR version element is invalid. */ +#define MBEDTLS_ERR_X509_INVALID_VERSION -0x2200 +/** The serial tag or value is invalid. */ +#define MBEDTLS_ERR_X509_INVALID_SERIAL -0x2280 +/** The algorithm tag or value is invalid. */ +#define MBEDTLS_ERR_X509_INVALID_ALG -0x2300 +/** The name tag or value is invalid. */ +#define MBEDTLS_ERR_X509_INVALID_NAME -0x2380 +/** The date tag or value is invalid. */ +#define MBEDTLS_ERR_X509_INVALID_DATE -0x2400 +/** The signature tag or value invalid. */ +#define MBEDTLS_ERR_X509_INVALID_SIGNATURE -0x2480 +/** The extension tag or value is invalid. */ +#define MBEDTLS_ERR_X509_INVALID_EXTENSIONS -0x2500 +/** CRT/CRL/CSR has an unsupported version number. */ +#define MBEDTLS_ERR_X509_UNKNOWN_VERSION -0x2580 +/** Signature algorithm (oid) is unsupported. */ +#define MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG -0x2600 +/** Signature algorithms do not match. (see \c ::mbedtls_x509_crt sig_oid) */ +#define MBEDTLS_ERR_X509_SIG_MISMATCH -0x2680 +/** Certificate verification failed, e.g. CRL, CA or signature check failed. */ +#define MBEDTLS_ERR_X509_CERT_VERIFY_FAILED -0x2700 +/** Format not recognized as DER or PEM. */ +#define MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT -0x2780 +/** Input invalid. */ +#define MBEDTLS_ERR_X509_BAD_INPUT_DATA -0x2800 +/** Allocation of memory failed. */ +#define MBEDTLS_ERR_X509_ALLOC_FAILED -0x2880 +/** Read/write of file failed. */ +#define MBEDTLS_ERR_X509_FILE_IO_ERROR -0x2900 +/** Destination buffer is too small. */ +#define MBEDTLS_ERR_X509_BUFFER_TOO_SMALL -0x2980 +/** A fatal error occurred, eg the chain is too long or the vrfy callback failed. */ +#define MBEDTLS_ERR_X509_FATAL_ERROR -0x3000 +/** \} name X509 Error codes */ + +/** + * \name X509 Verify codes + * \{ + */ +/* Reminder: update x509_crt_verify_strings[] in library/x509_crt.c */ +#define MBEDTLS_X509_BADCERT_EXPIRED 0x01 /**< The certificate validity has expired. */ +#define MBEDTLS_X509_BADCERT_REVOKED 0x02 /**< The certificate has been revoked (is on a CRL). */ +#define MBEDTLS_X509_BADCERT_CN_MISMATCH 0x04 /**< The certificate Common Name (CN) does not match with the expected CN. */ +#define MBEDTLS_X509_BADCERT_NOT_TRUSTED 0x08 /**< The certificate is not correctly signed by the trusted CA. */ +#define MBEDTLS_X509_BADCRL_NOT_TRUSTED 0x10 /**< The CRL is not correctly signed by the trusted CA. */ +#define MBEDTLS_X509_BADCRL_EXPIRED 0x20 /**< The CRL is expired. */ +#define MBEDTLS_X509_BADCERT_MISSING 0x40 /**< Certificate was missing. */ +#define MBEDTLS_X509_BADCERT_SKIP_VERIFY 0x80 /**< Certificate verification was skipped. */ +#define MBEDTLS_X509_BADCERT_OTHER 0x0100 /**< Other reason (can be used by verify callback) */ +#define MBEDTLS_X509_BADCERT_FUTURE 0x0200 /**< The certificate validity starts in the future. */ +#define MBEDTLS_X509_BADCRL_FUTURE 0x0400 /**< The CRL is from the future */ +#define MBEDTLS_X509_BADCERT_KEY_USAGE 0x0800 /**< Usage does not match the keyUsage extension. */ +#define MBEDTLS_X509_BADCERT_EXT_KEY_USAGE 0x1000 /**< Usage does not match the extendedKeyUsage extension. */ +#define MBEDTLS_X509_BADCERT_NS_CERT_TYPE 0x2000 /**< Usage does not match the nsCertType extension. */ +#define MBEDTLS_X509_BADCERT_BAD_MD 0x4000 /**< The certificate is signed with an unacceptable hash. */ +#define MBEDTLS_X509_BADCERT_BAD_PK 0x8000 /**< The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA). */ +#define MBEDTLS_X509_BADCERT_BAD_KEY 0x010000 /**< The certificate is signed with an unacceptable key (eg bad curve, RSA too short). */ +#define MBEDTLS_X509_BADCRL_BAD_MD 0x020000 /**< The CRL is signed with an unacceptable hash. */ +#define MBEDTLS_X509_BADCRL_BAD_PK 0x040000 /**< The CRL is signed with an unacceptable PK alg (eg RSA vs ECDSA). */ +#define MBEDTLS_X509_BADCRL_BAD_KEY 0x080000 /**< The CRL is signed with an unacceptable key (eg bad curve, RSA too short). */ + +/** \} name X509 Verify codes */ +/** \} addtogroup x509_module */ + +/* + * X.509 v3 Subject Alternative Name types. + * otherName [0] OtherName, + * rfc822Name [1] IA5String, + * dNSName [2] IA5String, + * x400Address [3] ORAddress, + * directoryName [4] Name, + * ediPartyName [5] EDIPartyName, + * uniformResourceIdentifier [6] IA5String, + * iPAddress [7] OCTET STRING, + * registeredID [8] OBJECT IDENTIFIER + */ +#define MBEDTLS_X509_SAN_OTHER_NAME 0 +#define MBEDTLS_X509_SAN_RFC822_NAME 1 +#define MBEDTLS_X509_SAN_DNS_NAME 2 +#define MBEDTLS_X509_SAN_X400_ADDRESS_NAME 3 +#define MBEDTLS_X509_SAN_DIRECTORY_NAME 4 +#define MBEDTLS_X509_SAN_EDI_PARTY_NAME 5 +#define MBEDTLS_X509_SAN_UNIFORM_RESOURCE_IDENTIFIER 6 +#define MBEDTLS_X509_SAN_IP_ADDRESS 7 +#define MBEDTLS_X509_SAN_REGISTERED_ID 8 + +/* + * X.509 v3 Key Usage Extension flags + * Reminder: update mbedtls_x509_info_key_usage() when adding new flags. + */ +#define MBEDTLS_X509_KU_DIGITAL_SIGNATURE (0x80) /* bit 0 */ +#define MBEDTLS_X509_KU_NON_REPUDIATION (0x40) /* bit 1 */ +#define MBEDTLS_X509_KU_KEY_ENCIPHERMENT (0x20) /* bit 2 */ +#define MBEDTLS_X509_KU_DATA_ENCIPHERMENT (0x10) /* bit 3 */ +#define MBEDTLS_X509_KU_KEY_AGREEMENT (0x08) /* bit 4 */ +#define MBEDTLS_X509_KU_KEY_CERT_SIGN (0x04) /* bit 5 */ +#define MBEDTLS_X509_KU_CRL_SIGN (0x02) /* bit 6 */ +#define MBEDTLS_X509_KU_ENCIPHER_ONLY (0x01) /* bit 7 */ +#define MBEDTLS_X509_KU_DECIPHER_ONLY (0x8000) /* bit 8 */ + +/* + * Netscape certificate types + * (http://www.mozilla.org/projects/security/pki/nss/tech-notes/tn3.html) + */ + +#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT (0x80) /* bit 0 */ +#define MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER (0x40) /* bit 1 */ +#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL (0x20) /* bit 2 */ +#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING (0x10) /* bit 3 */ +#define MBEDTLS_X509_NS_CERT_TYPE_RESERVED (0x08) /* bit 4 */ +#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CA (0x04) /* bit 5 */ +#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA (0x02) /* bit 6 */ +#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA (0x01) /* bit 7 */ + +/* + * X.509 extension types + * + * Comments refer to the status for using certificates. Status can be + * different for writing certificates or reading CRLs or CSRs. + * + * Those are defined in oid.h as oid.c needs them in a data structure. Since + * these were previously defined here, let's have aliases for compatibility. + */ +#define MBEDTLS_X509_EXT_AUTHORITY_KEY_IDENTIFIER MBEDTLS_OID_X509_EXT_AUTHORITY_KEY_IDENTIFIER +#define MBEDTLS_X509_EXT_SUBJECT_KEY_IDENTIFIER MBEDTLS_OID_X509_EXT_SUBJECT_KEY_IDENTIFIER +#define MBEDTLS_X509_EXT_KEY_USAGE MBEDTLS_OID_X509_EXT_KEY_USAGE +#define MBEDTLS_X509_EXT_CERTIFICATE_POLICIES MBEDTLS_OID_X509_EXT_CERTIFICATE_POLICIES +#define MBEDTLS_X509_EXT_POLICY_MAPPINGS MBEDTLS_OID_X509_EXT_POLICY_MAPPINGS +#define MBEDTLS_X509_EXT_SUBJECT_ALT_NAME MBEDTLS_OID_X509_EXT_SUBJECT_ALT_NAME /* Supported (DNS) */ +#define MBEDTLS_X509_EXT_ISSUER_ALT_NAME MBEDTLS_OID_X509_EXT_ISSUER_ALT_NAME +#define MBEDTLS_X509_EXT_SUBJECT_DIRECTORY_ATTRS MBEDTLS_OID_X509_EXT_SUBJECT_DIRECTORY_ATTRS +#define MBEDTLS_X509_EXT_BASIC_CONSTRAINTS MBEDTLS_OID_X509_EXT_BASIC_CONSTRAINTS /* Supported */ +#define MBEDTLS_X509_EXT_NAME_CONSTRAINTS MBEDTLS_OID_X509_EXT_NAME_CONSTRAINTS +#define MBEDTLS_X509_EXT_POLICY_CONSTRAINTS MBEDTLS_OID_X509_EXT_POLICY_CONSTRAINTS +#define MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE MBEDTLS_OID_X509_EXT_EXTENDED_KEY_USAGE +#define MBEDTLS_X509_EXT_CRL_DISTRIBUTION_POINTS MBEDTLS_OID_X509_EXT_CRL_DISTRIBUTION_POINTS +#define MBEDTLS_X509_EXT_INIHIBIT_ANYPOLICY MBEDTLS_OID_X509_EXT_INIHIBIT_ANYPOLICY +#define MBEDTLS_X509_EXT_FRESHEST_CRL MBEDTLS_OID_X509_EXT_FRESHEST_CRL +#define MBEDTLS_X509_EXT_NS_CERT_TYPE MBEDTLS_OID_X509_EXT_NS_CERT_TYPE + +/* + * Storage format identifiers + * Recognized formats: PEM and DER + */ +#define MBEDTLS_X509_FORMAT_DER 1 +#define MBEDTLS_X509_FORMAT_PEM 2 + +#define MBEDTLS_X509_MAX_DN_NAME_SIZE 256 /**< Maximum value size of a DN entry */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \addtogroup x509_module + * \{ */ + +/** + * \name Structures for parsing X.509 certificates, CRLs and CSRs + * \{ + */ + +/** + * Type-length-value structure that allows for ASN1 using DER. + */ +typedef mbedtls_asn1_buf mbedtls_x509_buf; + +/** + * Container for ASN1 bit strings. + */ +typedef mbedtls_asn1_bitstring mbedtls_x509_bitstring; + +/** + * Container for ASN1 named information objects. + * It allows for Relative Distinguished Names (e.g. cn=localhost,ou=code,etc.). + */ +typedef mbedtls_asn1_named_data mbedtls_x509_name; + +/** + * Container for a sequence of ASN.1 items + */ +typedef mbedtls_asn1_sequence mbedtls_x509_sequence; + +/* + * Container for the fields of the Authority Key Identifier object + */ +typedef struct mbedtls_x509_authority { + mbedtls_x509_buf keyIdentifier; + mbedtls_x509_sequence authorityCertIssuer; + mbedtls_x509_buf authorityCertSerialNumber; + mbedtls_x509_buf raw; +} +mbedtls_x509_authority; + +/** Container for date and time (precision in seconds). */ +typedef struct mbedtls_x509_time { + int year, mon, day; /**< Date. */ + int hour, min, sec; /**< Time. */ +} +mbedtls_x509_time; + +/** + * From RFC 5280 section 4.2.1.6: + * OtherName ::= SEQUENCE { + * type-id OBJECT IDENTIFIER, + * value [0] EXPLICIT ANY DEFINED BY type-id } + * + * Future versions of the library may add new fields to this structure or + * to its embedded union and structure. + */ +typedef struct mbedtls_x509_san_other_name { + /** + * The type_id is an OID as defined in RFC 5280. + * To check the value of the type id, you should use + * \p MBEDTLS_OID_CMP with a known OID mbedtls_x509_buf. + */ + mbedtls_x509_buf type_id; /**< The type id. */ + union { + /** + * From RFC 4108 section 5: + * HardwareModuleName ::= SEQUENCE { + * hwType OBJECT IDENTIFIER, + * hwSerialNum OCTET STRING } + */ + struct { + mbedtls_x509_buf oid; /**< The object identifier. */ + mbedtls_x509_buf val; /**< The named value. */ + } + hardware_module_name; + } + value; +} +mbedtls_x509_san_other_name; + +/** + * A structure for holding the parsed Subject Alternative Name, + * according to type. + * + * Future versions of the library may add new fields to this structure or + * to its embedded union and structure. + */ +typedef struct mbedtls_x509_subject_alternative_name { + int type; /**< The SAN type, value of MBEDTLS_X509_SAN_XXX. */ + union { + mbedtls_x509_san_other_name other_name; + mbedtls_x509_name directory_name; + mbedtls_x509_buf unstructured_name; /**< The buffer for the unstructured types. rfc822Name, dnsName and uniformResourceIdentifier are currently supported. */ + } + san; /**< A union of the supported SAN types */ +} +mbedtls_x509_subject_alternative_name; + +typedef struct mbedtls_x509_san_list { + mbedtls_x509_subject_alternative_name node; + struct mbedtls_x509_san_list *next; +} +mbedtls_x509_san_list; + +/** \} name Structures for parsing X.509 certificates, CRLs and CSRs */ + +/** + * \brief Store the certificate DN in printable form into buf; + * no more than size characters will be written. + * + * \param buf Buffer to write to + * \param size Maximum size of buffer + * \param dn The X509 name to represent + * + * \return The length of the string written (not including the + * terminated nul byte), or a negative error code. + */ +int mbedtls_x509_dn_gets(char *buf, size_t size, const mbedtls_x509_name *dn); + +/** + * \brief Return the next relative DN in an X509 name. + * + * \note Intended use is to compare function result to dn->next + * in order to detect boundaries of multi-valued RDNs. + * + * \param dn Current node in the X509 name + * + * \return Pointer to the first attribute-value pair of the + * next RDN in sequence, or NULL if end is reached. + */ +static inline mbedtls_x509_name *mbedtls_x509_dn_get_next( + mbedtls_x509_name *dn) +{ + while (dn->MBEDTLS_PRIVATE(next_merged) && dn->next != NULL) { + dn = dn->next; + } + return dn->next; +} + +/** + * \brief Store the certificate serial in printable form into buf; + * no more than size characters will be written. + * + * \param buf Buffer to write to + * \param size Maximum size of buffer + * \param serial The X509 serial to represent + * + * \return The length of the string written (not including the + * terminated nul byte), or a negative error code. + */ +int mbedtls_x509_serial_gets(char *buf, size_t size, const mbedtls_x509_buf *serial); + +/** + * \brief Compare pair of mbedtls_x509_time. + * + * \param t1 mbedtls_x509_time to compare + * \param t2 mbedtls_x509_time to compare + * + * \return < 0 if t1 is before t2 + * 0 if t1 equals t2 + * > 0 if t1 is after t2 + */ +int mbedtls_x509_time_cmp(const mbedtls_x509_time *t1, const mbedtls_x509_time *t2); + +#if defined(MBEDTLS_HAVE_TIME_DATE) +/** + * \brief Fill mbedtls_x509_time with provided mbedtls_time_t. + * + * \param tt mbedtls_time_t to convert + * \param now mbedtls_x509_time to fill with converted mbedtls_time_t + * + * \return \c 0 on success + * \return A non-zero return value on failure. + */ +int mbedtls_x509_time_gmtime(mbedtls_time_t tt, mbedtls_x509_time *now); +#endif /* MBEDTLS_HAVE_TIME_DATE */ + +/** + * \brief Check a given mbedtls_x509_time against the system time + * and tell if it's in the past. + * + * \note Intended usage is "if( is_past( valid_to ) ) ERROR". + * Hence the return value of 1 if on internal errors. + * + * \param to mbedtls_x509_time to check + * + * \return 1 if the given time is in the past or an error occurred, + * 0 otherwise. + */ +int mbedtls_x509_time_is_past(const mbedtls_x509_time *to); + +/** + * \brief Check a given mbedtls_x509_time against the system time + * and tell if it's in the future. + * + * \note Intended usage is "if( is_future( valid_from ) ) ERROR". + * Hence the return value of 1 if on internal errors. + * + * \param from mbedtls_x509_time to check + * + * \return 1 if the given time is in the future or an error occurred, + * 0 otherwise. + */ +int mbedtls_x509_time_is_future(const mbedtls_x509_time *from); + +/** + * \brief This function parses an item in the SubjectAlternativeNames + * extension. Please note that this function might allocate + * additional memory for a subject alternative name, thus + * mbedtls_x509_free_subject_alt_name has to be called + * to dispose of this additional memory afterwards. + * + * \param san_buf The buffer holding the raw data item of the subject + * alternative name. + * \param san The target structure to populate with the parsed presentation + * of the subject alternative name encoded in \p san_buf. + * + * \note Supported GeneralName types, as defined in RFC 5280: + * "rfc822Name", "dnsName", "directoryName", + * "uniformResourceIdentifier" and "hardware_module_name" + * of type "otherName", as defined in RFC 4108. + * + * \note This function should be called on a single raw data of + * subject alternative name. For example, after successful + * certificate parsing, one must iterate on every item in the + * \c crt->subject_alt_names sequence, and pass it to + * this function. + * + * \warning The target structure contains pointers to the raw data of the + * parsed certificate, and its lifetime is restricted by the + * lifetime of the certificate. + * + * \return \c 0 on success + * \return #MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE for an unsupported + * SAN type. + * \return Another negative value for any other failure. + */ +int mbedtls_x509_parse_subject_alt_name(const mbedtls_x509_buf *san_buf, + mbedtls_x509_subject_alternative_name *san); +/** + * \brief Unallocate all data related to subject alternative name + * + * \param san SAN structure - extra memory owned by this structure will be freed + */ +void mbedtls_x509_free_subject_alt_name(mbedtls_x509_subject_alternative_name *san); + +/** \} addtogroup x509_module */ + +/* + * Internal module functions. You probably do not want to use these unless you + * know you do. + */ +int mbedtls_x509_get_name(unsigned char **p, const unsigned char *end, + mbedtls_x509_name *cur); +int mbedtls_x509_get_alg_null(unsigned char **p, const unsigned char *end, + mbedtls_x509_buf *alg); +int mbedtls_x509_get_alg(unsigned char **p, const unsigned char *end, + mbedtls_x509_buf *alg, mbedtls_x509_buf *params); +#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) +int mbedtls_x509_get_rsassa_pss_params(const mbedtls_x509_buf *params, + mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md, + int *salt_len); +#endif +int mbedtls_x509_get_sig(unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig); +int mbedtls_x509_get_sig_alg(const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params, + mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg, + void **sig_opts); +int mbedtls_x509_get_time(unsigned char **p, const unsigned char *end, + mbedtls_x509_time *t); +int mbedtls_x509_get_serial(unsigned char **p, const unsigned char *end, + mbedtls_x509_buf *serial); +int mbedtls_x509_get_ext(unsigned char **p, const unsigned char *end, + mbedtls_x509_buf *ext, int tag); +#if !defined(MBEDTLS_X509_REMOVE_INFO) +int mbedtls_x509_sig_alg_gets(char *buf, size_t size, const mbedtls_x509_buf *sig_oid, + mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg, + const void *sig_opts); +#endif +int mbedtls_x509_key_size_helper(char *buf, size_t buf_size, const char *name); +int mbedtls_x509_string_to_names(mbedtls_asn1_named_data **head, const char *name); +int mbedtls_x509_set_extension(mbedtls_asn1_named_data **head, const char *oid, size_t oid_len, + int critical, const unsigned char *val, + size_t val_len); +int mbedtls_x509_write_extensions(unsigned char **p, unsigned char *start, + mbedtls_asn1_named_data *first); +int mbedtls_x509_write_names(unsigned char **p, unsigned char *start, + mbedtls_asn1_named_data *first); +int mbedtls_x509_write_sig(unsigned char **p, unsigned char *start, + const char *oid, size_t oid_len, + unsigned char *sig, size_t size, + mbedtls_pk_type_t pk_alg); +int mbedtls_x509_get_ns_cert_type(unsigned char **p, + const unsigned char *end, + unsigned char *ns_cert_type); +int mbedtls_x509_get_key_usage(unsigned char **p, + const unsigned char *end, + unsigned int *key_usage); +int mbedtls_x509_get_subject_alt_name(unsigned char **p, + const unsigned char *end, + mbedtls_x509_sequence *subject_alt_name); +int mbedtls_x509_get_subject_alt_name_ext(unsigned char **p, + const unsigned char *end, + mbedtls_x509_sequence *subject_alt_name); +int mbedtls_x509_info_subject_alt_name(char **buf, size_t *size, + const mbedtls_x509_sequence + *subject_alt_name, + const char *prefix); +int mbedtls_x509_info_cert_type(char **buf, size_t *size, + unsigned char ns_cert_type); +int mbedtls_x509_info_key_usage(char **buf, size_t *size, + unsigned int key_usage); + +int mbedtls_x509_write_set_san_common(mbedtls_asn1_named_data **extensions, + const mbedtls_x509_san_list *san_list); + +/** + * \brief This function parses a CN string as an IP address. + * + * \param cn The CN string to parse. CN string MUST be null-terminated. + * \param dst The target buffer to populate with the binary IP address. + * The buffer MUST be 16 bytes to save IPv6, and should be + * 4-byte aligned if the result will be used as struct in_addr. + * e.g. uint32_t dst[4] + * + * \note \p cn is parsed as an IPv6 address if string contains ':', + * else \p cn is parsed as an IPv4 address. + * + * \return Length of binary IP address; num bytes written to target. + * \return \c 0 on failure to parse CN string as an IP address. + */ +size_t mbedtls_x509_crt_parse_cn_inet_pton(const char *cn, void *dst); + +#define MBEDTLS_X509_SAFE_SNPRINTF \ + do { \ + if (ret < 0 || (size_t) ret >= n) \ + return MBEDTLS_ERR_X509_BUFFER_TOO_SMALL; \ + \ + n -= (size_t) ret; \ + p += (size_t) ret; \ + } while (0) + +#ifdef __cplusplus +} +#endif + +#endif /* x509.h */ diff --git a/include/mbedtls/x509_crl.h b/include/mbedtls/x509_crl.h new file mode 100644 index 0000000..6625a44 --- /dev/null +++ b/include/mbedtls/x509_crl.h @@ -0,0 +1,184 @@ +/** + * \file x509_crl.h + * + * \brief X.509 certificate revocation list parsing + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_X509_CRL_H +#define MBEDTLS_X509_CRL_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/x509.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \addtogroup x509_module + * \{ */ + +/** + * \name Structures and functions for parsing CRLs + * \{ + */ + +/** + * Certificate revocation list entry. + * Contains the CA-specific serial numbers and revocation dates. + * + * Some fields of this structure are publicly readable. Do not modify + * them except via Mbed TLS library functions: the effect of modifying + * those fields or the data that those fields points to is unspecified. + */ +typedef struct mbedtls_x509_crl_entry { + /** Direct access to the whole entry inside the containing buffer. */ + mbedtls_x509_buf raw; + /** The serial number of the revoked certificate. */ + mbedtls_x509_buf serial; + /** The revocation date of this entry. */ + mbedtls_x509_time revocation_date; + /** Direct access to the list of CRL entry extensions + * (an ASN.1 constructed sequence). + * + * If there are no extensions, `entry_ext.len == 0` and + * `entry_ext.p == NULL`. */ + mbedtls_x509_buf entry_ext; + + /** Next element in the linked list of entries. + * \p NULL indicates the end of the list. + * Do not modify this field directly. */ + struct mbedtls_x509_crl_entry *next; +} +mbedtls_x509_crl_entry; + +/** + * Certificate revocation list structure. + * Every CRL may have multiple entries. + */ +typedef struct mbedtls_x509_crl { + mbedtls_x509_buf raw; /**< The raw certificate data (DER). */ + mbedtls_x509_buf tbs; /**< The raw certificate body (DER). The part that is To Be Signed. */ + + int version; /**< CRL version (1=v1, 2=v2) */ + mbedtls_x509_buf sig_oid; /**< CRL signature type identifier */ + + mbedtls_x509_buf issuer_raw; /**< The raw issuer data (DER). */ + + mbedtls_x509_name issuer; /**< The parsed issuer data (named information object). */ + + mbedtls_x509_time this_update; + mbedtls_x509_time next_update; + + mbedtls_x509_crl_entry entry; /**< The CRL entries containing the certificate revocation times for this CA. */ + + mbedtls_x509_buf crl_ext; + + mbedtls_x509_buf MBEDTLS_PRIVATE(sig_oid2); + mbedtls_x509_buf MBEDTLS_PRIVATE(sig); + mbedtls_md_type_t MBEDTLS_PRIVATE(sig_md); /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */ + mbedtls_pk_type_t MBEDTLS_PRIVATE(sig_pk); /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */ + void *MBEDTLS_PRIVATE(sig_opts); /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */ + + /** Next element in the linked list of CRL. + * \p NULL indicates the end of the list. + * Do not modify this field directly. */ + struct mbedtls_x509_crl *next; +} +mbedtls_x509_crl; + +/** + * \brief Parse a DER-encoded CRL and append it to the chained list + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param chain points to the start of the chain + * \param buf buffer holding the CRL data in DER format + * \param buflen size of the buffer + * (including the terminating null byte for PEM data) + * + * \return 0 if successful, or a specific X509 or PEM error code + */ +int mbedtls_x509_crl_parse_der(mbedtls_x509_crl *chain, + const unsigned char *buf, size_t buflen); +/** + * \brief Parse one or more CRLs and append them to the chained list + * + * \note Multiple CRLs are accepted only if using PEM format + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param chain points to the start of the chain + * \param buf buffer holding the CRL data in PEM or DER format + * \param buflen size of the buffer + * (including the terminating null byte for PEM data) + * + * \return 0 if successful, or a specific X509 or PEM error code + */ +int mbedtls_x509_crl_parse(mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief Load one or more CRLs and append them to the chained list + * + * \note Multiple CRLs are accepted only if using PEM format + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param chain points to the start of the chain + * \param path filename to read the CRLs from (in PEM or DER encoding) + * + * \return 0 if successful, or a specific X509 or PEM error code + */ +int mbedtls_x509_crl_parse_file(mbedtls_x509_crl *chain, const char *path); +#endif /* MBEDTLS_FS_IO */ + +#if !defined(MBEDTLS_X509_REMOVE_INFO) +/** + * \brief Returns an informational string about the CRL. + * + * \param buf Buffer to write to + * \param size Maximum size of buffer + * \param prefix A line prefix + * \param crl The X509 CRL to represent + * + * \return The length of the string written (not including the + * terminated nul byte), or a negative error code. + */ +int mbedtls_x509_crl_info(char *buf, size_t size, const char *prefix, + const mbedtls_x509_crl *crl); +#endif /* !MBEDTLS_X509_REMOVE_INFO */ + +/** + * \brief Initialize a CRL (chain) + * + * \param crl CRL chain to initialize + */ +void mbedtls_x509_crl_init(mbedtls_x509_crl *crl); + +/** + * \brief Unallocate all CRL data + * + * \param crl CRL chain to free + */ +void mbedtls_x509_crl_free(mbedtls_x509_crl *crl); + +/** \} name Structures and functions for parsing CRLs */ +/** \} addtogroup x509_module */ + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_x509_crl.h */ diff --git a/include/mbedtls/x509_crt.h b/include/mbedtls/x509_crt.h new file mode 100644 index 0000000..3f1a1e7 --- /dev/null +++ b/include/mbedtls/x509_crt.h @@ -0,0 +1,1196 @@ +/** + * \file x509_crt.h + * + * \brief X.509 certificate parsing and writing + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_X509_CRT_H +#define MBEDTLS_X509_CRT_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/x509.h" +#include "mbedtls/x509_crl.h" +#include "mbedtls/bignum.h" + +/** + * \addtogroup x509_module + * \{ + */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \name Structures and functions for parsing and writing X.509 certificates + * \{ + */ + +/** + * Container for an X.509 certificate. The certificate may be chained. + * + * Some fields of this structure are publicly readable. Do not modify + * them except via Mbed TLS library functions: the effect of modifying + * those fields or the data that those fields points to is unspecified. + */ +typedef struct mbedtls_x509_crt { + int MBEDTLS_PRIVATE(own_buffer); /**< Indicates if \c raw is owned + * by the structure or not. */ + mbedtls_x509_buf raw; /**< The raw certificate data (DER). */ + mbedtls_x509_buf tbs; /**< The raw certificate body (DER). The part that is To Be Signed. */ + + int version; /**< The X.509 version. (1=v1, 2=v2, 3=v3) */ + mbedtls_x509_buf serial; /**< Unique id for certificate issued by a specific CA. */ + mbedtls_x509_buf sig_oid; /**< Signature algorithm, e.g. sha1RSA */ + + mbedtls_x509_buf issuer_raw; /**< The raw issuer data (DER). Used for quick comparison. */ + mbedtls_x509_buf subject_raw; /**< The raw subject data (DER). Used for quick comparison. */ + + mbedtls_x509_name issuer; /**< The parsed issuer data (named information object). */ + mbedtls_x509_name subject; /**< The parsed subject data (named information object). */ + + mbedtls_x509_time valid_from; /**< Start time of certificate validity. */ + mbedtls_x509_time valid_to; /**< End time of certificate validity. */ + + mbedtls_x509_buf pk_raw; + mbedtls_pk_context pk; /**< Container for the public key context. */ + + mbedtls_x509_buf issuer_id; /**< Optional X.509 v2/v3 issuer unique identifier. */ + mbedtls_x509_buf subject_id; /**< Optional X.509 v2/v3 subject unique identifier. */ + mbedtls_x509_buf v3_ext; /**< Optional X.509 v3 extensions. */ + mbedtls_x509_sequence subject_alt_names; /**< Optional list of raw entries of Subject Alternative Names extension. These can be later parsed by mbedtls_x509_parse_subject_alt_name. */ + mbedtls_x509_buf subject_key_id; /**< Optional X.509 v3 extension subject key identifier. */ + mbedtls_x509_authority authority_key_id; /**< Optional X.509 v3 extension authority key identifier. */ + + mbedtls_x509_sequence certificate_policies; /**< Optional list of certificate policies (Only anyPolicy is printed and enforced, however the rest of the policies are still listed). */ + + int MBEDTLS_PRIVATE(ext_types); /**< Bit string containing detected and parsed extensions */ + int MBEDTLS_PRIVATE(ca_istrue); /**< Optional Basic Constraint extension value: 1 if this certificate belongs to a CA, 0 otherwise. */ + int MBEDTLS_PRIVATE(max_pathlen); /**< Optional Basic Constraint extension value: The maximum path length to the root certificate. Path length is 1 higher than RFC 5280 'meaning', so 1+ */ + + unsigned int MBEDTLS_PRIVATE(key_usage); /**< Optional key usage extension value: See the values in x509.h */ + + mbedtls_x509_sequence ext_key_usage; /**< Optional list of extended key usage OIDs. */ + + unsigned char MBEDTLS_PRIVATE(ns_cert_type); /**< Optional Netscape certificate type extension value: See the values in x509.h */ + + mbedtls_x509_buf MBEDTLS_PRIVATE(sig); /**< Signature: hash of the tbs part signed with the private key. */ + mbedtls_md_type_t MBEDTLS_PRIVATE(sig_md); /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */ + mbedtls_pk_type_t MBEDTLS_PRIVATE(sig_pk); /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */ + void *MBEDTLS_PRIVATE(sig_opts); /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */ + + /** Next certificate in the linked list that constitutes the CA chain. + * \p NULL indicates the end of the list. + * Do not modify this field directly. */ + struct mbedtls_x509_crt *next; +} +mbedtls_x509_crt; + +/** + * Build flag from an algorithm/curve identifier (pk, md, ecp) + * Since 0 is always XXX_NONE, ignore it. + */ +#define MBEDTLS_X509_ID_FLAG(id) (1 << ((id) - 1)) + +/** + * Security profile for certificate verification. + * + * All lists are bitfields, built by ORing flags from MBEDTLS_X509_ID_FLAG(). + * + * The fields of this structure are part of the public API and can be + * manipulated directly by applications. Future versions of the library may + * add extra fields or reorder existing fields. + * + * You can create custom profiles by starting from a copy of + * an existing profile, such as mbedtls_x509_crt_profile_default or + * mbedtls_x509_ctr_profile_none and then tune it to your needs. + * + * For example to allow SHA-224 in addition to the default: + * + * mbedtls_x509_crt_profile my_profile = mbedtls_x509_crt_profile_default; + * my_profile.allowed_mds |= MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA224 ); + * + * Or to allow only RSA-3072+ with SHA-256: + * + * mbedtls_x509_crt_profile my_profile = mbedtls_x509_crt_profile_none; + * my_profile.allowed_mds = MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ); + * my_profile.allowed_pks = MBEDTLS_X509_ID_FLAG( MBEDTLS_PK_RSA ); + * my_profile.rsa_min_bitlen = 3072; + */ +typedef struct mbedtls_x509_crt_profile { + uint32_t allowed_mds; /**< MDs for signatures */ + uint32_t allowed_pks; /**< PK algs for public keys; + * this applies to all certificates + * in the provided chain. */ + uint32_t allowed_curves; /**< Elliptic curves for ECDSA */ + uint32_t rsa_min_bitlen; /**< Minimum size for RSA keys */ +} +mbedtls_x509_crt_profile; + +#define MBEDTLS_X509_CRT_VERSION_1 0 +#define MBEDTLS_X509_CRT_VERSION_2 1 +#define MBEDTLS_X509_CRT_VERSION_3 2 + +#define MBEDTLS_X509_RFC5280_MAX_SERIAL_LEN 20 +#define MBEDTLS_X509_RFC5280_UTC_TIME_LEN 15 + +#if !defined(MBEDTLS_X509_MAX_FILE_PATH_LEN) +#define MBEDTLS_X509_MAX_FILE_PATH_LEN 512 +#endif + +/* This macro unfolds to the concatenation of macro invocations + * X509_CRT_ERROR_INFO( error code, + * error code as string, + * human readable description ) + * where X509_CRT_ERROR_INFO is defined by the user. + * See x509_crt.c for an example of how to use this. */ +#define MBEDTLS_X509_CRT_ERROR_INFO_LIST \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_EXPIRED, \ + "MBEDTLS_X509_BADCERT_EXPIRED", \ + "The certificate validity has expired") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_REVOKED, \ + "MBEDTLS_X509_BADCERT_REVOKED", \ + "The certificate has been revoked (is on a CRL)") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_CN_MISMATCH, \ + "MBEDTLS_X509_BADCERT_CN_MISMATCH", \ + "The certificate Common Name (CN) does not match with the expected CN") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_NOT_TRUSTED, \ + "MBEDTLS_X509_BADCERT_NOT_TRUSTED", \ + "The certificate is not correctly signed by the trusted CA") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCRL_NOT_TRUSTED, \ + "MBEDTLS_X509_BADCRL_NOT_TRUSTED", \ + "The CRL is not correctly signed by the trusted CA") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCRL_EXPIRED, \ + "MBEDTLS_X509_BADCRL_EXPIRED", \ + "The CRL is expired") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_MISSING, \ + "MBEDTLS_X509_BADCERT_MISSING", \ + "Certificate was missing") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_SKIP_VERIFY, \ + "MBEDTLS_X509_BADCERT_SKIP_VERIFY", \ + "Certificate verification was skipped") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_OTHER, \ + "MBEDTLS_X509_BADCERT_OTHER", \ + "Other reason (can be used by verify callback)") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_FUTURE, \ + "MBEDTLS_X509_BADCERT_FUTURE", \ + "The certificate validity starts in the future") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCRL_FUTURE, \ + "MBEDTLS_X509_BADCRL_FUTURE", \ + "The CRL is from the future") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_KEY_USAGE, \ + "MBEDTLS_X509_BADCERT_KEY_USAGE", \ + "Usage does not match the keyUsage extension") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_EXT_KEY_USAGE, \ + "MBEDTLS_X509_BADCERT_EXT_KEY_USAGE", \ + "Usage does not match the extendedKeyUsage extension") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_NS_CERT_TYPE, \ + "MBEDTLS_X509_BADCERT_NS_CERT_TYPE", \ + "Usage does not match the nsCertType extension") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_BAD_MD, \ + "MBEDTLS_X509_BADCERT_BAD_MD", \ + "The certificate is signed with an unacceptable hash.") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_BAD_PK, \ + "MBEDTLS_X509_BADCERT_BAD_PK", \ + "The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA).") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCERT_BAD_KEY, \ + "MBEDTLS_X509_BADCERT_BAD_KEY", \ + "The certificate is signed with an unacceptable key (eg bad curve, RSA too short).") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCRL_BAD_MD, \ + "MBEDTLS_X509_BADCRL_BAD_MD", \ + "The CRL is signed with an unacceptable hash.") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCRL_BAD_PK, \ + "MBEDTLS_X509_BADCRL_BAD_PK", \ + "The CRL is signed with an unacceptable PK alg (eg RSA vs ECDSA).") \ + X509_CRT_ERROR_INFO(MBEDTLS_X509_BADCRL_BAD_KEY, \ + "MBEDTLS_X509_BADCRL_BAD_KEY", \ + "The CRL is signed with an unacceptable key (eg bad curve, RSA too short).") + +/** + * Container for writing a certificate (CRT) + */ +typedef struct mbedtls_x509write_cert { + int MBEDTLS_PRIVATE(version); + unsigned char MBEDTLS_PRIVATE(serial)[MBEDTLS_X509_RFC5280_MAX_SERIAL_LEN]; + size_t MBEDTLS_PRIVATE(serial_len); + mbedtls_pk_context *MBEDTLS_PRIVATE(subject_key); + mbedtls_pk_context *MBEDTLS_PRIVATE(issuer_key); + mbedtls_asn1_named_data *MBEDTLS_PRIVATE(subject); + mbedtls_asn1_named_data *MBEDTLS_PRIVATE(issuer); + mbedtls_md_type_t MBEDTLS_PRIVATE(md_alg); + char MBEDTLS_PRIVATE(not_before)[MBEDTLS_X509_RFC5280_UTC_TIME_LEN + 1]; + char MBEDTLS_PRIVATE(not_after)[MBEDTLS_X509_RFC5280_UTC_TIME_LEN + 1]; + mbedtls_asn1_named_data *MBEDTLS_PRIVATE(extensions); +} +mbedtls_x509write_cert; + +/** + * \brief Set Subject Alternative Name + * + * \param ctx Certificate context to use + * \param san_list List of SAN values + * + * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED + * + * \note "dnsName", "uniformResourceIdentifier", "IP address", + * "otherName", and "DirectoryName", as defined in RFC 5280, + * are supported. + */ +int mbedtls_x509write_crt_set_subject_alternative_name(mbedtls_x509write_cert *ctx, + const mbedtls_x509_san_list *san_list); + +/** + * Item in a verification chain: cert and flags for it + */ +typedef struct { + mbedtls_x509_crt *MBEDTLS_PRIVATE(crt); + uint32_t MBEDTLS_PRIVATE(flags); +} mbedtls_x509_crt_verify_chain_item; + +/** + * Max size of verification chain: end-entity + intermediates + trusted root + */ +#define MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE (MBEDTLS_X509_MAX_INTERMEDIATE_CA + 2) + +/** + * Verification chain as built by \c mbedtls_crt_verify_chain() + */ +typedef struct { + mbedtls_x509_crt_verify_chain_item MBEDTLS_PRIVATE(items)[MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE]; + unsigned MBEDTLS_PRIVATE(len); + +#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) + /* This stores the list of potential trusted signers obtained from + * the CA callback used for the CRT verification, if configured. + * We must track it somewhere because the callback passes its + * ownership to the caller. */ + mbedtls_x509_crt *MBEDTLS_PRIVATE(trust_ca_cb_result); +#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ +} mbedtls_x509_crt_verify_chain; + +#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) + +/** + * \brief Context for resuming X.509 verify operations + */ +typedef struct { + /* for check_signature() */ + mbedtls_pk_restart_ctx MBEDTLS_PRIVATE(pk); + + /* for find_parent_in() */ + mbedtls_x509_crt *MBEDTLS_PRIVATE(parent); /* non-null iff parent_in in progress */ + mbedtls_x509_crt *MBEDTLS_PRIVATE(fallback_parent); + int MBEDTLS_PRIVATE(fallback_signature_is_good); + + /* for find_parent() */ + int MBEDTLS_PRIVATE(parent_is_trusted); /* -1 if find_parent is not in progress */ + + /* for verify_chain() */ + enum { + x509_crt_rs_none, + x509_crt_rs_find_parent, + } MBEDTLS_PRIVATE(in_progress); /* none if no operation is in progress */ + int MBEDTLS_PRIVATE(self_cnt); + mbedtls_x509_crt_verify_chain MBEDTLS_PRIVATE(ver_chain); + +} mbedtls_x509_crt_restart_ctx; + +#else /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */ + +/* Now we can declare functions that take a pointer to that */ +typedef void mbedtls_x509_crt_restart_ctx; + +#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */ + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +/** + * Default security profile. Should provide a good balance between security + * and compatibility with current deployments. + * + * This profile permits: + * - SHA2 hashes with at least 256 bits: SHA-256, SHA-384, SHA-512. + * - Elliptic curves with 255 bits and above except secp256k1. + * - RSA with 2048 bits and above. + * + * New minor versions of Mbed TLS may extend this profile, for example if + * new algorithms are added to the library. New minor versions of Mbed TLS will + * not reduce this profile unless serious security concerns require it. + */ +extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_default; + +/** + * Expected next default profile. Recommended for new deployments. + * Currently targets a 128-bit security level, except for allowing RSA-2048. + * This profile may change at any time. + */ +extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_next; + +/** + * NSA Suite B profile. + */ +extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_suiteb; + +/** + * Empty profile that allows nothing. Useful as a basis for constructing + * custom profiles. + */ +extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_none; + +/** + * \brief Parse a single DER formatted certificate and add it + * to the end of the provided chained list. + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param chain The pointer to the start of the CRT chain to attach to. + * When parsing the first CRT in a chain, this should point + * to an instance of ::mbedtls_x509_crt initialized through + * mbedtls_x509_crt_init(). + * \param buf The buffer holding the DER encoded certificate. + * \param buflen The size in Bytes of \p buf. + * + * \note This function makes an internal copy of the CRT buffer + * \p buf. In particular, \p buf may be destroyed or reused + * after this call returns. To avoid duplicating the CRT + * buffer (at the cost of stricter lifetime constraints), + * use mbedtls_x509_crt_parse_der_nocopy() instead. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_x509_crt_parse_der(mbedtls_x509_crt *chain, + const unsigned char *buf, + size_t buflen); + +/** + * \brief The type of certificate extension callbacks. + * + * Callbacks of this type are passed to and used by the + * mbedtls_x509_crt_parse_der_with_ext_cb() routine when + * it encounters either an unsupported extension or a + * "certificate policies" extension containing any + * unsupported certificate policies. + * Future versions of the library may invoke the callback + * in other cases, if and when the need arises. + * + * \param p_ctx An opaque context passed to the callback. + * \param crt The certificate being parsed. + * \param oid The OID of the extension. + * \param critical Whether the extension is critical. + * \param p Pointer to the start of the extension value + * (the content of the OCTET STRING). + * \param end End of extension value. + * + * \note The callback must fail and return a negative error code + * if it can not parse or does not support the extension. + * When the callback fails to parse a critical extension + * mbedtls_x509_crt_parse_der_with_ext_cb() also fails. + * When the callback fails to parse a non critical extension + * mbedtls_x509_crt_parse_der_with_ext_cb() simply skips + * the extension and continues parsing. + * + * \return \c 0 on success. + * \return A negative error code on failure. + */ +typedef int (*mbedtls_x509_crt_ext_cb_t)(void *p_ctx, + mbedtls_x509_crt const *crt, + mbedtls_x509_buf const *oid, + int critical, + const unsigned char *p, + const unsigned char *end); + +/** + * \brief Parse a single DER formatted certificate and add it + * to the end of the provided chained list. + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param chain The pointer to the start of the CRT chain to attach to. + * When parsing the first CRT in a chain, this should point + * to an instance of ::mbedtls_x509_crt initialized through + * mbedtls_x509_crt_init(). + * \param buf The buffer holding the DER encoded certificate. + * \param buflen The size in Bytes of \p buf. + * \param make_copy When not zero this function makes an internal copy of the + * CRT buffer \p buf. In particular, \p buf may be destroyed + * or reused after this call returns. + * When zero this function avoids duplicating the CRT buffer + * by taking temporary ownership thereof until the CRT + * is destroyed (like mbedtls_x509_crt_parse_der_nocopy()) + * \param cb A callback invoked for every unsupported certificate + * extension. + * \param p_ctx An opaque context passed to the callback. + * + * \note This call is functionally equivalent to + * mbedtls_x509_crt_parse_der(), and/or + * mbedtls_x509_crt_parse_der_nocopy() + * but it calls the callback with every unsupported + * certificate extension and additionally the + * "certificate policies" extension if it contains any + * unsupported certificate policies. + * The callback must return a negative error code if it + * does not know how to handle such an extension. + * When the callback fails to parse a critical extension + * mbedtls_x509_crt_parse_der_with_ext_cb() also fails. + * When the callback fails to parse a non critical extension + * mbedtls_x509_crt_parse_der_with_ext_cb() simply skips + * the extension and continues parsing. + * Future versions of the library may invoke the callback + * in other cases, if and when the need arises. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_x509_crt_parse_der_with_ext_cb(mbedtls_x509_crt *chain, + const unsigned char *buf, + size_t buflen, + int make_copy, + mbedtls_x509_crt_ext_cb_t cb, + void *p_ctx); + +/** + * \brief Parse a single DER formatted certificate and add it + * to the end of the provided chained list. This is a + * variant of mbedtls_x509_crt_parse_der() which takes + * temporary ownership of the CRT buffer until the CRT + * is destroyed. + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param chain The pointer to the start of the CRT chain to attach to. + * When parsing the first CRT in a chain, this should point + * to an instance of ::mbedtls_x509_crt initialized through + * mbedtls_x509_crt_init(). + * \param buf The address of the readable buffer holding the DER encoded + * certificate to use. On success, this buffer must be + * retained and not be changed for the lifetime of the + * CRT chain \p chain, that is, until \p chain is destroyed + * through a call to mbedtls_x509_crt_free(). + * \param buflen The size in Bytes of \p buf. + * + * \note This call is functionally equivalent to + * mbedtls_x509_crt_parse_der(), but it avoids creating a + * copy of the input buffer at the cost of stronger lifetime + * constraints. This is useful in constrained environments + * where duplication of the CRT cannot be tolerated. + * + * \return \c 0 if successful. + * \return A negative error code on failure. + */ +int mbedtls_x509_crt_parse_der_nocopy(mbedtls_x509_crt *chain, + const unsigned char *buf, + size_t buflen); + +/** + * \brief Parse one DER-encoded or one or more concatenated PEM-encoded + * certificates and add them to the chained list. + * + * For CRTs in PEM encoding, the function parses permissively: + * if at least one certificate can be parsed, the function + * returns the number of certificates for which parsing failed + * (hence \c 0 if all certificates were parsed successfully). + * If no certificate could be parsed, the function returns + * the first (negative) error encountered during parsing. + * + * PEM encoded certificates may be interleaved by other data + * such as human readable descriptions of their content, as + * long as the certificates are enclosed in the PEM specific + * '-----{BEGIN/END} CERTIFICATE-----' delimiters. + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param chain The chain to which to add the parsed certificates. + * \param buf The buffer holding the certificate data in PEM or DER format. + * For certificates in PEM encoding, this may be a concatenation + * of multiple certificates; for DER encoding, the buffer must + * comprise exactly one certificate. + * \param buflen The size of \p buf, including the terminating \c NULL byte + * in case of PEM encoded data. + * + * \return \c 0 if all certificates were parsed successfully. + * \return The (positive) number of certificates that couldn't + * be parsed if parsing was partly successful (see above). + * \return A negative X509 or PEM error code otherwise. + * + */ +int mbedtls_x509_crt_parse(mbedtls_x509_crt *chain, const unsigned char *buf, size_t buflen); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief Load one or more certificates and add them + * to the chained list. Parses permissively. If some + * certificates can be parsed, the result is the number + * of failed certificates it encountered. If none complete + * correctly, the first error is returned. + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param chain points to the start of the chain + * \param path filename to read the certificates from + * + * \return 0 if all certificates parsed successfully, a positive number + * if partly successful or a specific X509 or PEM error code + */ +int mbedtls_x509_crt_parse_file(mbedtls_x509_crt *chain, const char *path); + +/** + * \brief Load one or more certificate files from a path and add them + * to the chained list. Parses permissively. If some + * certificates can be parsed, the result is the number + * of failed certificates it encountered. If none complete + * correctly, the first error is returned. + * + * \param chain points to the start of the chain + * \param path directory / folder to read the certificate files from + * + * \return 0 if all certificates parsed successfully, a positive number + * if partly successful or a specific X509 or PEM error code + */ +int mbedtls_x509_crt_parse_path(mbedtls_x509_crt *chain, const char *path); + +#endif /* MBEDTLS_FS_IO */ + +#if !defined(MBEDTLS_X509_REMOVE_INFO) +/** + * \brief Returns an informational string about the + * certificate. + * + * \param buf Buffer to write to + * \param size Maximum size of buffer + * \param prefix A line prefix + * \param crt The X509 certificate to represent + * + * \return The length of the string written (not including the + * terminated nul byte), or a negative error code. + */ +int mbedtls_x509_crt_info(char *buf, size_t size, const char *prefix, + const mbedtls_x509_crt *crt); + +/** + * \brief Returns an informational string about the + * verification status of a certificate. + * + * \param buf Buffer to write to + * \param size Maximum size of buffer + * \param prefix A line prefix + * \param flags Verification flags created by mbedtls_x509_crt_verify() + * + * \return The length of the string written (not including the + * terminated nul byte), or a negative error code. + */ +int mbedtls_x509_crt_verify_info(char *buf, size_t size, const char *prefix, + uint32_t flags); +#endif /* !MBEDTLS_X509_REMOVE_INFO */ + +/** + * \brief Verify a chain of certificates. + * + * The verify callback is a user-supplied callback that + * can clear / modify / add flags for a certificate. If set, + * the verification callback is called for each + * certificate in the chain (from the trust-ca down to the + * presented crt). The parameters for the callback are: + * (void *parameter, mbedtls_x509_crt *crt, int certificate_depth, + * int *flags). With the flags representing current flags for + * that specific certificate and the certificate depth from + * the bottom (Peer cert depth = 0). + * + * All flags left after returning from the callback + * are also returned to the application. The function should + * return 0 for anything (including invalid certificates) + * other than fatal error, as a non-zero return code + * immediately aborts the verification process. For fatal + * errors, a specific error code should be used (different + * from MBEDTLS_ERR_X509_CERT_VERIFY_FAILED which should not + * be returned at this point), or MBEDTLS_ERR_X509_FATAL_ERROR + * can be used if no better code is available. + * + * \note In case verification failed, the results can be displayed + * using \c mbedtls_x509_crt_verify_info() + * + * \note Same as \c mbedtls_x509_crt_verify_with_profile() with the + * default security profile. + * + * \note It is your responsibility to provide up-to-date CRLs for + * all trusted CAs. If no CRL is provided for the CA that was + * used to sign the certificate, CRL verification is skipped + * silently, that is *without* setting any flag. + * + * \note The \c trust_ca list can contain two types of certificates: + * (1) those of trusted root CAs, so that certificates + * chaining up to those CAs will be trusted, and (2) + * self-signed end-entity certificates to be trusted (for + * specific peers you know) - in that case, the self-signed + * certificate doesn't need to have the CA bit set. + * + * \param crt The certificate chain to be verified. + * \param trust_ca The list of trusted CAs. + * \param ca_crl The list of CRLs for trusted CAs. + * \param cn The expected Common Name. This will be checked to be + * present in the certificate's subjectAltNames extension or, + * if this extension is absent, as a CN component in its + * Subject name. DNS names and IP addresses are fully + * supported, while the URI subtype is partially supported: + * only exact matching, without any normalization procedures + * described in 7.4 of RFC5280, will result in a positive + * URI verification. + * This may be \c NULL if the CN need not be verified. + * \param flags The address at which to store the result of the verification. + * If the verification couldn't be completed, the flag value is + * set to (uint32_t) -1. + * \param f_vrfy The verification callback to use. See the documentation + * of mbedtls_x509_crt_verify() for more information. + * \param p_vrfy The context to be passed to \p f_vrfy. + * + * \return \c 0 if the chain is valid with respect to the + * passed CN, CAs, CRLs and security profile. + * \return #MBEDTLS_ERR_X509_CERT_VERIFY_FAILED in case the + * certificate chain verification failed. In this case, + * \c *flags will have one or more + * \c MBEDTLS_X509_BADCERT_XXX or \c MBEDTLS_X509_BADCRL_XXX + * flags set. + * \return Another negative error code in case of a fatal error + * encountered during the verification process. + */ +int mbedtls_x509_crt_verify(mbedtls_x509_crt *crt, + mbedtls_x509_crt *trust_ca, + mbedtls_x509_crl *ca_crl, + const char *cn, uint32_t *flags, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy); + +/** + * \brief Verify a chain of certificates with respect to + * a configurable security profile. + * + * \note Same as \c mbedtls_x509_crt_verify(), but with explicit + * security profile. + * + * \note The restrictions on keys (RSA minimum size, allowed curves + * for ECDSA) apply to all certificates: trusted root, + * intermediate CAs if any, and end entity certificate. + * + * \param crt The certificate chain to be verified. + * \param trust_ca The list of trusted CAs. + * \param ca_crl The list of CRLs for trusted CAs. + * \param profile The security profile to use for the verification. + * \param cn The expected Common Name. This may be \c NULL if the + * CN need not be verified. + * \param flags The address at which to store the result of the verification. + * If the verification couldn't be completed, the flag value is + * set to (uint32_t) -1. + * \param f_vrfy The verification callback to use. See the documentation + * of mbedtls_x509_crt_verify() for more information. + * \param p_vrfy The context to be passed to \p f_vrfy. + * + * \return \c 0 if the chain is valid with respect to the + * passed CN, CAs, CRLs and security profile. + * \return #MBEDTLS_ERR_X509_CERT_VERIFY_FAILED in case the + * certificate chain verification failed. In this case, + * \c *flags will have one or more + * \c MBEDTLS_X509_BADCERT_XXX or \c MBEDTLS_X509_BADCRL_XXX + * flags set. + * \return Another negative error code in case of a fatal error + * encountered during the verification process. + */ +int mbedtls_x509_crt_verify_with_profile(mbedtls_x509_crt *crt, + mbedtls_x509_crt *trust_ca, + mbedtls_x509_crl *ca_crl, + const mbedtls_x509_crt_profile *profile, + const char *cn, uint32_t *flags, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy); + +/** + * \brief Restartable version of \c mbedtls_crt_verify_with_profile() + * + * \note Performs the same job as \c mbedtls_crt_verify_with_profile() + * but can return early and restart according to the limit + * set with \c mbedtls_ecp_set_max_ops() to reduce blocking. + * + * \param crt The certificate chain to be verified. + * \param trust_ca The list of trusted CAs. + * \param ca_crl The list of CRLs for trusted CAs. + * \param profile The security profile to use for the verification. + * \param cn The expected Common Name. This may be \c NULL if the + * CN need not be verified. + * \param flags The address at which to store the result of the verification. + * If the verification couldn't be completed, the flag value is + * set to (uint32_t) -1. + * \param f_vrfy The verification callback to use. See the documentation + * of mbedtls_x509_crt_verify() for more information. + * \param p_vrfy The context to be passed to \p f_vrfy. + * \param rs_ctx The restart context to use. This may be set to \c NULL + * to disable restartable ECC. + * + * \return See \c mbedtls_crt_verify_with_profile(), or + * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of + * operations was reached: see \c mbedtls_ecp_set_max_ops(). + */ +int mbedtls_x509_crt_verify_restartable(mbedtls_x509_crt *crt, + mbedtls_x509_crt *trust_ca, + mbedtls_x509_crl *ca_crl, + const mbedtls_x509_crt_profile *profile, + const char *cn, uint32_t *flags, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy, + mbedtls_x509_crt_restart_ctx *rs_ctx); + +/** + * \brief The type of trusted certificate callbacks. + * + * Callbacks of this type are passed to and used by the CRT + * verification routine mbedtls_x509_crt_verify_with_ca_cb() + * when looking for trusted signers of a given certificate. + * + * On success, the callback returns a list of trusted + * certificates to be considered as potential signers + * for the input certificate. + * + * \param p_ctx An opaque context passed to the callback. + * \param child The certificate for which to search a potential signer. + * This will point to a readable certificate. + * \param candidate_cas The address at which to store the address of the first + * entry in the generated linked list of candidate signers. + * This will not be \c NULL. + * + * \note The callback must only return a non-zero value on a + * fatal error. If, in contrast, the search for a potential + * signer completes without a single candidate, the + * callback must return \c 0 and set \c *candidate_cas + * to \c NULL. + * + * \return \c 0 on success. In this case, \c *candidate_cas points + * to a heap-allocated linked list of instances of + * ::mbedtls_x509_crt, and ownership of this list is passed + * to the caller. + * \return A negative error code on failure. + */ +typedef int (*mbedtls_x509_crt_ca_cb_t)(void *p_ctx, + mbedtls_x509_crt const *child, + mbedtls_x509_crt **candidate_cas); + +#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) +/** + * \brief Version of \c mbedtls_x509_crt_verify_with_profile() which + * uses a callback to acquire the list of trusted CA + * certificates. + * + * \param crt The certificate chain to be verified. + * \param f_ca_cb The callback to be used to query for potential signers + * of a given child certificate. See the documentation of + * ::mbedtls_x509_crt_ca_cb_t for more information. + * \param p_ca_cb The opaque context to be passed to \p f_ca_cb. + * \param profile The security profile for the verification. + * \param cn The expected Common Name. This may be \c NULL if the + * CN need not be verified. + * \param flags The address at which to store the result of the verification. + * If the verification couldn't be completed, the flag value is + * set to (uint32_t) -1. + * \param f_vrfy The verification callback to use. See the documentation + * of mbedtls_x509_crt_verify() for more information. + * \param p_vrfy The context to be passed to \p f_vrfy. + * + * \return See \c mbedtls_crt_verify_with_profile(). + */ +int mbedtls_x509_crt_verify_with_ca_cb(mbedtls_x509_crt *crt, + mbedtls_x509_crt_ca_cb_t f_ca_cb, + void *p_ca_cb, + const mbedtls_x509_crt_profile *profile, + const char *cn, uint32_t *flags, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy); + +#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ + +/** + * \brief Check usage of certificate against keyUsage extension. + * + * \param crt Leaf certificate used. + * \param usage Intended usage(s) (eg MBEDTLS_X509_KU_KEY_ENCIPHERMENT + * before using the certificate to perform an RSA key + * exchange). + * + * \note Except for decipherOnly and encipherOnly, a bit set in the + * usage argument means this bit MUST be set in the + * certificate. For decipherOnly and encipherOnly, it means + * that bit MAY be set. + * + * \return 0 is these uses of the certificate are allowed, + * MBEDTLS_ERR_X509_BAD_INPUT_DATA if the keyUsage extension + * is present but does not match the usage argument. + * + * \note You should only call this function on leaf certificates, on + * (intermediate) CAs the keyUsage extension is automatically + * checked by \c mbedtls_x509_crt_verify(). + */ +int mbedtls_x509_crt_check_key_usage(const mbedtls_x509_crt *crt, + unsigned int usage); + +/** + * \brief Check usage of certificate against extendedKeyUsage. + * + * \param crt Leaf certificate used. + * \param usage_oid Intended usage (eg MBEDTLS_OID_SERVER_AUTH or + * MBEDTLS_OID_CLIENT_AUTH). + * \param usage_len Length of usage_oid (eg given by MBEDTLS_OID_SIZE()). + * + * \return 0 if this use of the certificate is allowed, + * MBEDTLS_ERR_X509_BAD_INPUT_DATA if not. + * + * \note Usually only makes sense on leaf certificates. + */ +int mbedtls_x509_crt_check_extended_key_usage(const mbedtls_x509_crt *crt, + const char *usage_oid, + size_t usage_len); + +#if defined(MBEDTLS_X509_CRL_PARSE_C) +/** + * \brief Verify the certificate revocation status + * + * \param crt a certificate to be verified + * \param crl the CRL to verify against + * + * \return 1 if the certificate is revoked, 0 otherwise + * + */ +int mbedtls_x509_crt_is_revoked(const mbedtls_x509_crt *crt, const mbedtls_x509_crl *crl); +#endif /* MBEDTLS_X509_CRL_PARSE_C */ + +/** + * \brief Initialize a certificate (chain) + * + * \param crt Certificate chain to initialize + */ +void mbedtls_x509_crt_init(mbedtls_x509_crt *crt); + +/** + * \brief Unallocate all certificate data + * + * \param crt Certificate chain to free + */ +void mbedtls_x509_crt_free(mbedtls_x509_crt *crt); + +#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) +/** + * \brief Initialize a restart context + */ +void mbedtls_x509_crt_restart_init(mbedtls_x509_crt_restart_ctx *ctx); + +/** + * \brief Free the components of a restart context + */ +void mbedtls_x509_crt_restart_free(mbedtls_x509_crt_restart_ctx *ctx); +#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */ +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +/** + * \brief Query certificate for given extension type + * + * \param[in] ctx Certificate context to be queried, must not be \c NULL + * \param ext_type Extension type being queried for, must be a valid + * extension type. Must be one of the MBEDTLS_X509_EXT_XXX + * values + * + * \return 0 if the given extension type is not present, + * non-zero otherwise + */ +static inline int mbedtls_x509_crt_has_ext_type(const mbedtls_x509_crt *ctx, + int ext_type) +{ + return ctx->MBEDTLS_PRIVATE(ext_types) & ext_type; +} + +/** \} name Structures and functions for parsing and writing X.509 certificates */ + +#if defined(MBEDTLS_X509_CRT_WRITE_C) +/** + * \brief Initialize a CRT writing context + * + * \param ctx CRT context to initialize + */ +void mbedtls_x509write_crt_init(mbedtls_x509write_cert *ctx); + +/** + * \brief Set the version for a Certificate + * Default: MBEDTLS_X509_CRT_VERSION_3 + * + * \param ctx CRT context to use + * \param version version to set (MBEDTLS_X509_CRT_VERSION_1, MBEDTLS_X509_CRT_VERSION_2 or + * MBEDTLS_X509_CRT_VERSION_3) + */ +void mbedtls_x509write_crt_set_version(mbedtls_x509write_cert *ctx, int version); + +#if defined(MBEDTLS_BIGNUM_C) && !defined(MBEDTLS_DEPRECATED_REMOVED) +/** + * \brief Set the serial number for a Certificate. + * + * \deprecated This function is deprecated and will be removed in a + * future version of the library. Please use + * mbedtls_x509write_crt_set_serial_raw() instead. + * + * \note Even though the MBEDTLS_BIGNUM_C guard looks redundant since + * X509 depends on PK and PK depends on BIGNUM, this emphasizes + * a direct dependency between X509 and BIGNUM which is going + * to be deprecated in the future. + * + * \param ctx CRT context to use + * \param serial serial number to set + * + * \return 0 if successful + */ +int MBEDTLS_DEPRECATED mbedtls_x509write_crt_set_serial( + mbedtls_x509write_cert *ctx, const mbedtls_mpi *serial); +#endif // MBEDTLS_BIGNUM_C && !MBEDTLS_DEPRECATED_REMOVED + +/** + * \brief Set the serial number for a Certificate. + * + * \param ctx CRT context to use + * \param serial A raw array of bytes containing the serial number in big + * endian format + * \param serial_len Length of valid bytes (expressed in bytes) in \p serial + * input buffer + * + * \return 0 if successful, or + * MBEDTLS_ERR_X509_BAD_INPUT_DATA if the provided input buffer + * is too big (longer than MBEDTLS_X509_RFC5280_MAX_SERIAL_LEN) + */ +int mbedtls_x509write_crt_set_serial_raw(mbedtls_x509write_cert *ctx, + unsigned char *serial, size_t serial_len); + +/** + * \brief Set the validity period for a Certificate + * Timestamps should be in string format for UTC timezone + * i.e. "YYYYMMDDhhmmss" + * e.g. "20131231235959" for December 31st 2013 + * at 23:59:59 + * + * \param ctx CRT context to use + * \param not_before not_before timestamp + * \param not_after not_after timestamp + * + * \return 0 if timestamp was parsed successfully, or + * a specific error code + */ +int mbedtls_x509write_crt_set_validity(mbedtls_x509write_cert *ctx, const char *not_before, + const char *not_after); + +/** + * \brief Set the issuer name for a Certificate + * Issuer names should contain a comma-separated list + * of OID types and values: + * e.g. "C=UK,O=ARM,CN=Mbed TLS CA" + * + * \param ctx CRT context to use + * \param issuer_name issuer name to set + * + * \return 0 if issuer name was parsed successfully, or + * a specific error code + */ +int mbedtls_x509write_crt_set_issuer_name(mbedtls_x509write_cert *ctx, + const char *issuer_name); + +/** + * \brief Set the subject name for a Certificate + * Subject names should contain a comma-separated list + * of OID types and values: + * e.g. "C=UK,O=ARM,CN=Mbed TLS Server 1" + * + * \param ctx CRT context to use + * \param subject_name subject name to set + * + * \return 0 if subject name was parsed successfully, or + * a specific error code + */ +int mbedtls_x509write_crt_set_subject_name(mbedtls_x509write_cert *ctx, + const char *subject_name); + +/** + * \brief Set the subject public key for the certificate + * + * \param ctx CRT context to use + * \param key public key to include + */ +void mbedtls_x509write_crt_set_subject_key(mbedtls_x509write_cert *ctx, mbedtls_pk_context *key); + +/** + * \brief Set the issuer key used for signing the certificate + * + * \param ctx CRT context to use + * \param key private key to sign with + */ +void mbedtls_x509write_crt_set_issuer_key(mbedtls_x509write_cert *ctx, mbedtls_pk_context *key); + +/** + * \brief Set the MD algorithm to use for the signature + * (e.g. MBEDTLS_MD_SHA1) + * + * \param ctx CRT context to use + * \param md_alg MD algorithm to use + */ +void mbedtls_x509write_crt_set_md_alg(mbedtls_x509write_cert *ctx, mbedtls_md_type_t md_alg); + +/** + * \brief Generic function to add to or replace an extension in the + * CRT + * + * \param ctx CRT context to use + * \param oid OID of the extension + * \param oid_len length of the OID + * \param critical if the extension is critical (per the RFC's definition) + * \param val value of the extension OCTET STRING + * \param val_len length of the value data + * + * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_crt_set_extension(mbedtls_x509write_cert *ctx, + const char *oid, size_t oid_len, + int critical, + const unsigned char *val, size_t val_len); + +/** + * \brief Set the basicConstraints extension for a CRT + * + * \param ctx CRT context to use + * \param is_ca is this a CA certificate + * \param max_pathlen maximum length of certificate chains below this + * certificate (only for CA certificates, -1 is + * unlimited) + * + * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_crt_set_basic_constraints(mbedtls_x509write_cert *ctx, + int is_ca, int max_pathlen); + +#if defined(MBEDTLS_MD_CAN_SHA1) +/** + * \brief Set the subjectKeyIdentifier extension for a CRT + * Requires that mbedtls_x509write_crt_set_subject_key() has been + * called before + * + * \param ctx CRT context to use + * + * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_crt_set_subject_key_identifier(mbedtls_x509write_cert *ctx); + +/** + * \brief Set the authorityKeyIdentifier extension for a CRT + * Requires that mbedtls_x509write_crt_set_issuer_key() has been + * called before + * + * \param ctx CRT context to use + * + * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_crt_set_authority_key_identifier(mbedtls_x509write_cert *ctx); +#endif /* MBEDTLS_MD_CAN_SHA1 */ + +/** + * \brief Set the Key Usage Extension flags + * (e.g. MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_CERT_SIGN) + * + * \param ctx CRT context to use + * \param key_usage key usage flags to set + * + * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_crt_set_key_usage(mbedtls_x509write_cert *ctx, + unsigned int key_usage); + +/** + * \brief Set the Extended Key Usage Extension + * (e.g. MBEDTLS_OID_SERVER_AUTH) + * + * \param ctx CRT context to use + * \param exts extended key usage extensions to set, a sequence of + * MBEDTLS_ASN1_OID objects + * + * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_crt_set_ext_key_usage(mbedtls_x509write_cert *ctx, + const mbedtls_asn1_sequence *exts); + +/** + * \brief Set the Netscape Cert Type flags + * (e.g. MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT | MBEDTLS_X509_NS_CERT_TYPE_EMAIL) + * + * \param ctx CRT context to use + * \param ns_cert_type Netscape Cert Type flags to set + * + * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_crt_set_ns_cert_type(mbedtls_x509write_cert *ctx, + unsigned char ns_cert_type); + +/** + * \brief Free the contents of a CRT write context + * + * \param ctx CRT context to free + */ +void mbedtls_x509write_crt_free(mbedtls_x509write_cert *ctx); + +/** + * \brief Write a built up certificate to a X509 DER structure + * Note: data is written at the end of the buffer! Use the + * return value to determine where you should start + * using the buffer + * + * \param ctx certificate to write away + * \param buf buffer to write to + * \param size size of the buffer + * \param f_rng RNG function. This must not be \c NULL. + * \param p_rng RNG parameter + * + * \return length of data written if successful, or a specific + * error code + * + * \note \p f_rng is used for the signature operation. + */ +int mbedtls_x509write_crt_der(mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +#if defined(MBEDTLS_PEM_WRITE_C) +/** + * \brief Write a built up certificate to a X509 PEM string + * + * \param ctx certificate to write away + * \param buf buffer to write to + * \param size size of the buffer + * \param f_rng RNG function. This must not be \c NULL. + * \param p_rng RNG parameter + * + * \return 0 if successful, or a specific error code + * + * \note \p f_rng is used for the signature operation. + */ +int mbedtls_x509write_crt_pem(mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); +#endif /* MBEDTLS_PEM_WRITE_C */ +#endif /* MBEDTLS_X509_CRT_WRITE_C */ + +/** \} addtogroup x509_module */ + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_x509_crt.h */ diff --git a/include/mbedtls/x509_csr.h b/include/mbedtls/x509_csr.h new file mode 100644 index 0000000..e54010b --- /dev/null +++ b/include/mbedtls/x509_csr.h @@ -0,0 +1,319 @@ +/** + * \file x509_csr.h + * + * \brief X.509 certificate signing request parsing and writing + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_X509_CSR_H +#define MBEDTLS_X509_CSR_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include "mbedtls/x509.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \addtogroup x509_module + * \{ */ + +/** + * \name Structures and functions for X.509 Certificate Signing Requests (CSR) + * \{ + */ + +/** + * Certificate Signing Request (CSR) structure. + * + * Some fields of this structure are publicly readable. Do not modify + * them except via Mbed TLS library functions: the effect of modifying + * those fields or the data that those fields point to is unspecified. + */ +typedef struct mbedtls_x509_csr { + mbedtls_x509_buf raw; /**< The raw CSR data (DER). */ + mbedtls_x509_buf cri; /**< The raw CertificateRequestInfo body (DER). */ + + int version; /**< CSR version (1=v1). */ + + mbedtls_x509_buf subject_raw; /**< The raw subject data (DER). */ + mbedtls_x509_name subject; /**< The parsed subject data (named information object). */ + + mbedtls_pk_context pk; /**< Container for the public key context. */ + + unsigned int key_usage; /**< Optional key usage extension value: See the values in x509.h */ + unsigned char ns_cert_type; /**< Optional Netscape certificate type extension value: See the values in x509.h */ + mbedtls_x509_sequence subject_alt_names; /**< Optional list of raw entries of Subject Alternative Names extension. These can be later parsed by mbedtls_x509_parse_subject_alt_name. */ + + int MBEDTLS_PRIVATE(ext_types); /**< Bit string containing detected and parsed extensions */ + + mbedtls_x509_buf sig_oid; + mbedtls_x509_buf MBEDTLS_PRIVATE(sig); + mbedtls_md_type_t MBEDTLS_PRIVATE(sig_md); /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */ + mbedtls_pk_type_t MBEDTLS_PRIVATE(sig_pk); /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */ + void *MBEDTLS_PRIVATE(sig_opts); /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */ +} +mbedtls_x509_csr; + +/** + * Container for writing a CSR + */ +typedef struct mbedtls_x509write_csr { + mbedtls_pk_context *MBEDTLS_PRIVATE(key); + mbedtls_asn1_named_data *MBEDTLS_PRIVATE(subject); + mbedtls_md_type_t MBEDTLS_PRIVATE(md_alg); + mbedtls_asn1_named_data *MBEDTLS_PRIVATE(extensions); +} +mbedtls_x509write_csr; + +#if defined(MBEDTLS_X509_CSR_PARSE_C) +/** + * \brief Load a Certificate Signing Request (CSR) in DER format + * + * \note CSR attributes (if any) are currently silently ignored. + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param csr CSR context to fill + * \param buf buffer holding the CRL data + * \param buflen size of the buffer + * + * \return 0 if successful, or a specific X509 error code + */ +int mbedtls_x509_csr_parse_der(mbedtls_x509_csr *csr, + const unsigned char *buf, size_t buflen); + +/** + * \brief Load a Certificate Signing Request (CSR), DER or PEM format + * + * \note See notes for \c mbedtls_x509_csr_parse_der() + * + * \note If #MBEDTLS_USE_PSA_CRYPTO is enabled, the PSA crypto + * subsystem must have been initialized by calling + * psa_crypto_init() before calling this function. + * + * \param csr CSR context to fill + * \param buf buffer holding the CRL data + * \param buflen size of the buffer + * (including the terminating null byte for PEM data) + * + * \return 0 if successful, or a specific X509 or PEM error code + */ +int mbedtls_x509_csr_parse(mbedtls_x509_csr *csr, const unsigned char *buf, size_t buflen); + +#if defined(MBEDTLS_FS_IO) +/** + * \brief Load a Certificate Signing Request (CSR) + * + * \note See notes for \c mbedtls_x509_csr_parse() + * + * \param csr CSR context to fill + * \param path filename to read the CSR from + * + * \return 0 if successful, or a specific X509 or PEM error code + */ +int mbedtls_x509_csr_parse_file(mbedtls_x509_csr *csr, const char *path); +#endif /* MBEDTLS_FS_IO */ + +#if !defined(MBEDTLS_X509_REMOVE_INFO) +/** + * \brief Returns an informational string about the + * CSR. + * + * \param buf Buffer to write to + * \param size Maximum size of buffer + * \param prefix A line prefix + * \param csr The X509 CSR to represent + * + * \return The length of the string written (not including the + * terminated nul byte), or a negative error code. + */ +int mbedtls_x509_csr_info(char *buf, size_t size, const char *prefix, + const mbedtls_x509_csr *csr); +#endif /* !MBEDTLS_X509_REMOVE_INFO */ + +/** + * \brief Initialize a CSR + * + * \param csr CSR to initialize + */ +void mbedtls_x509_csr_init(mbedtls_x509_csr *csr); + +/** + * \brief Unallocate all CSR data + * + * \param csr CSR to free + */ +void mbedtls_x509_csr_free(mbedtls_x509_csr *csr); +#endif /* MBEDTLS_X509_CSR_PARSE_C */ + +/** \} name Structures and functions for X.509 Certificate Signing Requests (CSR) */ + +#if defined(MBEDTLS_X509_CSR_WRITE_C) +/** + * \brief Initialize a CSR context + * + * \param ctx CSR context to initialize + */ +void mbedtls_x509write_csr_init(mbedtls_x509write_csr *ctx); + +/** + * \brief Set the subject name for a CSR + * Subject names should contain a comma-separated list + * of OID types and values: + * e.g. "C=UK,O=ARM,CN=Mbed TLS Server 1" + * + * \param ctx CSR context to use + * \param subject_name subject name to set + * + * \return 0 if subject name was parsed successfully, or + * a specific error code + */ +int mbedtls_x509write_csr_set_subject_name(mbedtls_x509write_csr *ctx, + const char *subject_name); + +/** + * \brief Set the key for a CSR (public key will be included, + * private key used to sign the CSR when writing it) + * + * \param ctx CSR context to use + * \param key Asymmetric key to include + */ +void mbedtls_x509write_csr_set_key(mbedtls_x509write_csr *ctx, mbedtls_pk_context *key); + +/** + * \brief Set the MD algorithm to use for the signature + * (e.g. MBEDTLS_MD_SHA1) + * + * \param ctx CSR context to use + * \param md_alg MD algorithm to use + */ +void mbedtls_x509write_csr_set_md_alg(mbedtls_x509write_csr *ctx, mbedtls_md_type_t md_alg); + +/** + * \brief Set the Key Usage Extension flags + * (e.g. MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_CERT_SIGN) + * + * \param ctx CSR context to use + * \param key_usage key usage flags to set + * + * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED + * + * \note The <code>decipherOnly</code> flag from the Key Usage + * extension is represented by bit 8 (i.e. + * <code>0x8000</code>), which cannot typically be represented + * in an unsigned char. Therefore, the flag + * <code>decipherOnly</code> (i.e. + * #MBEDTLS_X509_KU_DECIPHER_ONLY) cannot be set using this + * function. + */ +int mbedtls_x509write_csr_set_key_usage(mbedtls_x509write_csr *ctx, unsigned char key_usage); + +/** + * \brief Set Subject Alternative Name + * + * \param ctx CSR context to use + * \param san_list List of SAN values + * + * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED + * + * \note Only "dnsName", "uniformResourceIdentifier" and "otherName", + * as defined in RFC 5280, are supported. + */ +int mbedtls_x509write_csr_set_subject_alternative_name(mbedtls_x509write_csr *ctx, + const mbedtls_x509_san_list *san_list); + +/** + * \brief Set the Netscape Cert Type flags + * (e.g. MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT | MBEDTLS_X509_NS_CERT_TYPE_EMAIL) + * + * \param ctx CSR context to use + * \param ns_cert_type Netscape Cert Type flags to set + * + * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_csr_set_ns_cert_type(mbedtls_x509write_csr *ctx, + unsigned char ns_cert_type); + +/** + * \brief Generic function to add to or replace an extension in the + * CSR + * + * \param ctx CSR context to use + * \param oid OID of the extension + * \param oid_len length of the OID + * \param critical Set to 1 to mark the extension as critical, 0 otherwise. + * \param val value of the extension OCTET STRING + * \param val_len length of the value data + * + * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED + */ +int mbedtls_x509write_csr_set_extension(mbedtls_x509write_csr *ctx, + const char *oid, size_t oid_len, + int critical, + const unsigned char *val, size_t val_len); + +/** + * \brief Free the contents of a CSR context + * + * \param ctx CSR context to free + */ +void mbedtls_x509write_csr_free(mbedtls_x509write_csr *ctx); + +/** + * \brief Write a CSR (Certificate Signing Request) to a + * DER structure + * Note: data is written at the end of the buffer! Use the + * return value to determine where you should start + * using the buffer + * + * \param ctx CSR to write away + * \param buf buffer to write to + * \param size size of the buffer + * \param f_rng RNG function. This must not be \c NULL. + * \param p_rng RNG parameter + * + * \return length of data written if successful, or a specific + * error code + * + * \note \p f_rng is used for the signature operation. + */ +int mbedtls_x509write_csr_der(mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); + +#if defined(MBEDTLS_PEM_WRITE_C) +/** + * \brief Write a CSR (Certificate Signing Request) to a + * PEM string + * + * \param ctx CSR to write away + * \param buf buffer to write to + * \param size size of the buffer + * \param f_rng RNG function. This must not be \c NULL. + * \param p_rng RNG parameter + * + * \return 0 if successful, or a specific error code + * + * \note \p f_rng is used for the signature operation. + */ +int mbedtls_x509write_csr_pem(mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng); +#endif /* MBEDTLS_PEM_WRITE_C */ +#endif /* MBEDTLS_X509_CSR_WRITE_C */ + +/** \} addtogroup x509_module */ + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_x509_csr.h */ diff --git a/include/psa/build_info.h b/include/psa/build_info.h new file mode 100644 index 0000000..3ee6cd7 --- /dev/null +++ b/include/psa/build_info.h @@ -0,0 +1,20 @@ +/** + * \file psa/build_info.h + * + * \brief Build-time PSA configuration info + * + * Include this file if you need to depend on the + * configuration options defined in mbedtls_config.h or MBEDTLS_CONFIG_FILE + * in PSA cryptography core specific files. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_BUILD_INFO_H +#define PSA_CRYPTO_BUILD_INFO_H + +#include "mbedtls/build_info.h" + +#endif /* PSA_CRYPTO_BUILD_INFO_H */ diff --git a/include/psa/crypto.h b/include/psa/crypto.h new file mode 100644 index 0000000..fe10ee0 --- /dev/null +++ b/include/psa/crypto.h @@ -0,0 +1,4685 @@ +/** + * \file psa/crypto.h + * \brief Platform Security Architecture cryptography module + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_H +#define PSA_CRYPTO_H + +#if defined(MBEDTLS_PSA_CRYPTO_PLATFORM_FILE) +#include MBEDTLS_PSA_CRYPTO_PLATFORM_FILE +#else +#include "crypto_platform.h" +#endif + +#include <stddef.h> + +#ifdef __DOXYGEN_ONLY__ +/* This __DOXYGEN_ONLY__ block contains mock definitions for things that + * must be defined in the crypto_platform.h header. These mock definitions + * are present in this file as a convenience to generate pretty-printed + * documentation that includes those definitions. */ + +/** \defgroup platform Implementation-specific definitions + * @{ + */ + +/**@}*/ +#endif /* __DOXYGEN_ONLY__ */ + +#ifdef __cplusplus +extern "C" { +#endif + +/* The file "crypto_types.h" declares types that encode errors, + * algorithms, key types, policies, etc. */ +#include "crypto_types.h" + +/** \defgroup version API version + * @{ + */ + +/** + * The major version of this implementation of the PSA Crypto API + */ +#define PSA_CRYPTO_API_VERSION_MAJOR 1 + +/** + * The minor version of this implementation of the PSA Crypto API + */ +#define PSA_CRYPTO_API_VERSION_MINOR 0 + +/**@}*/ + +/* The file "crypto_values.h" declares macros to build and analyze values + * of integral types defined in "crypto_types.h". */ +#include "crypto_values.h" + +/** \defgroup initialization Library initialization + * @{ + */ + +/** + * \brief Library initialization. + * + * Applications must call this function before calling any other + * function in this module. + * + * Applications may call this function more than once. Once a call + * succeeds, subsequent calls are guaranteed to succeed. + * + * If the application calls other functions before calling psa_crypto_init(), + * the behavior is undefined. Implementations are encouraged to either perform + * the operation as if the library had been initialized or to return + * #PSA_ERROR_BAD_STATE or some other applicable error. In particular, + * implementations should not return a success status if the lack of + * initialization may have security implications, for example due to improper + * seeding of the random number generator. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_STORAGE \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + */ +psa_status_t psa_crypto_init(void); + +/**@}*/ + +/** \addtogroup attributes + * @{ + */ + +/** \def PSA_KEY_ATTRIBUTES_INIT + * + * This macro returns a suitable initializer for a key attribute structure + * of type #psa_key_attributes_t. + */ + +/** Return an initial value for a key attributes structure. + */ +static psa_key_attributes_t psa_key_attributes_init(void); + +/** Declare a key as persistent and set its key identifier. + * + * If the attribute structure currently declares the key as volatile (which + * is the default content of an attribute structure), this function sets + * the lifetime attribute to #PSA_KEY_LIFETIME_PERSISTENT. + * + * This function does not access storage, it merely stores the given + * value in the structure. + * The persistent key will be written to storage when the attribute + * structure is passed to a key creation function such as + * psa_import_key(), psa_generate_key(), + * psa_key_derivation_output_key() or psa_copy_key(). + * + * This function may be declared as `static` (i.e. without external + * linkage). This function may be provided as a function-like macro, + * but in this case it must evaluate each of its arguments exactly once. + * + * \param[out] attributes The attribute structure to write to. + * \param key The persistent identifier for the key. + */ +static void psa_set_key_id(psa_key_attributes_t *attributes, + mbedtls_svc_key_id_t key); + +#ifdef MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER +/** Set the owner identifier of a key. + * + * When key identifiers encode key owner identifiers, psa_set_key_id() does + * not allow to define in key attributes the owner of volatile keys as + * psa_set_key_id() enforces the key to be persistent. + * + * This function allows to set in key attributes the owner identifier of a + * key. It is intended to be used for volatile keys. For persistent keys, + * it is recommended to use the PSA Cryptography API psa_set_key_id() to define + * the owner of a key. + * + * \param[out] attributes The attribute structure to write to. + * \param owner The key owner identifier. + */ +static void mbedtls_set_key_owner_id(psa_key_attributes_t *attributes, + mbedtls_key_owner_id_t owner); +#endif + +/** Set the location of a persistent key. + * + * To make a key persistent, you must give it a persistent key identifier + * with psa_set_key_id(). By default, a key that has a persistent identifier + * is stored in the default storage area identifier by + * #PSA_KEY_LIFETIME_PERSISTENT. Call this function to choose a storage + * area, or to explicitly declare the key as volatile. + * + * This function does not access storage, it merely stores the given + * value in the structure. + * The persistent key will be written to storage when the attribute + * structure is passed to a key creation function such as + * psa_import_key(), psa_generate_key(), + * psa_key_derivation_output_key() or psa_copy_key(). + * + * This function may be declared as `static` (i.e. without external + * linkage). This function may be provided as a function-like macro, + * but in this case it must evaluate each of its arguments exactly once. + * + * \param[out] attributes The attribute structure to write to. + * \param lifetime The lifetime for the key. + * If this is #PSA_KEY_LIFETIME_VOLATILE, the + * key will be volatile, and the key identifier + * attribute is reset to 0. + */ +static void psa_set_key_lifetime(psa_key_attributes_t *attributes, + psa_key_lifetime_t lifetime); + +/** Retrieve the key identifier from key attributes. + * + * This function may be declared as `static` (i.e. without external + * linkage). This function may be provided as a function-like macro, + * but in this case it must evaluate its argument exactly once. + * + * \param[in] attributes The key attribute structure to query. + * + * \return The persistent identifier stored in the attribute structure. + * This value is unspecified if the attribute structure declares + * the key as volatile. + */ +static mbedtls_svc_key_id_t psa_get_key_id( + const psa_key_attributes_t *attributes); + +/** Retrieve the lifetime from key attributes. + * + * This function may be declared as `static` (i.e. without external + * linkage). This function may be provided as a function-like macro, + * but in this case it must evaluate its argument exactly once. + * + * \param[in] attributes The key attribute structure to query. + * + * \return The lifetime value stored in the attribute structure. + */ +static psa_key_lifetime_t psa_get_key_lifetime( + const psa_key_attributes_t *attributes); + +/** Declare usage flags for a key. + * + * Usage flags are part of a key's usage policy. They encode what + * kind of operations are permitted on the key. For more details, + * refer to the documentation of the type #psa_key_usage_t. + * + * This function overwrites any usage flags + * previously set in \p attributes. + * + * This function may be declared as `static` (i.e. without external + * linkage). This function may be provided as a function-like macro, + * but in this case it must evaluate each of its arguments exactly once. + * + * \param[out] attributes The attribute structure to write to. + * \param usage_flags The usage flags to write. + */ +static void psa_set_key_usage_flags(psa_key_attributes_t *attributes, + psa_key_usage_t usage_flags); + +/** Retrieve the usage flags from key attributes. + * + * This function may be declared as `static` (i.e. without external + * linkage). This function may be provided as a function-like macro, + * but in this case it must evaluate its argument exactly once. + * + * \param[in] attributes The key attribute structure to query. + * + * \return The usage flags stored in the attribute structure. + */ +static psa_key_usage_t psa_get_key_usage_flags( + const psa_key_attributes_t *attributes); + +/** Declare the permitted algorithm policy for a key. + * + * The permitted algorithm policy of a key encodes which algorithm or + * algorithms are permitted to be used with this key. The following + * algorithm policies are supported: + * - 0 does not allow any cryptographic operation with the key. The key + * may be used for non-cryptographic actions such as exporting (if + * permitted by the usage flags). + * - An algorithm value permits this particular algorithm. + * - An algorithm wildcard built from #PSA_ALG_ANY_HASH allows the specified + * signature scheme with any hash algorithm. + * - An algorithm built from #PSA_ALG_AT_LEAST_THIS_LENGTH_MAC allows + * any MAC algorithm from the same base class (e.g. CMAC) which + * generates/verifies a MAC length greater than or equal to the length + * encoded in the wildcard algorithm. + * - An algorithm built from #PSA_ALG_AEAD_WITH_AT_LEAST_THIS_LENGTH_TAG + * allows any AEAD algorithm from the same base class (e.g. CCM) which + * generates/verifies a tag length greater than or equal to the length + * encoded in the wildcard algorithm. + * + * This function overwrites any algorithm policy + * previously set in \p attributes. + * + * This function may be declared as `static` (i.e. without external + * linkage). This function may be provided as a function-like macro, + * but in this case it must evaluate each of its arguments exactly once. + * + * \param[out] attributes The attribute structure to write to. + * \param alg The permitted algorithm policy to write. + */ +static void psa_set_key_algorithm(psa_key_attributes_t *attributes, + psa_algorithm_t alg); + + +/** Retrieve the algorithm policy from key attributes. + * + * This function may be declared as `static` (i.e. without external + * linkage). This function may be provided as a function-like macro, + * but in this case it must evaluate its argument exactly once. + * + * \param[in] attributes The key attribute structure to query. + * + * \return The algorithm stored in the attribute structure. + */ +static psa_algorithm_t psa_get_key_algorithm( + const psa_key_attributes_t *attributes); + +/** Declare the type of a key. + * + * This function overwrites any key type + * previously set in \p attributes. + * + * This function may be declared as `static` (i.e. without external + * linkage). This function may be provided as a function-like macro, + * but in this case it must evaluate each of its arguments exactly once. + * + * \param[out] attributes The attribute structure to write to. + * \param type The key type to write. + * If this is 0, the key type in \p attributes + * becomes unspecified. + */ +static void psa_set_key_type(psa_key_attributes_t *attributes, + psa_key_type_t type); + + +/** Declare the size of a key. + * + * This function overwrites any key size previously set in \p attributes. + * + * This function may be declared as `static` (i.e. without external + * linkage). This function may be provided as a function-like macro, + * but in this case it must evaluate each of its arguments exactly once. + * + * \param[out] attributes The attribute structure to write to. + * \param bits The key size in bits. + * If this is 0, the key size in \p attributes + * becomes unspecified. Keys of size 0 are + * not supported. + */ +static void psa_set_key_bits(psa_key_attributes_t *attributes, + size_t bits); + +/** Retrieve the key type from key attributes. + * + * This function may be declared as `static` (i.e. without external + * linkage). This function may be provided as a function-like macro, + * but in this case it must evaluate its argument exactly once. + * + * \param[in] attributes The key attribute structure to query. + * + * \return The key type stored in the attribute structure. + */ +static psa_key_type_t psa_get_key_type(const psa_key_attributes_t *attributes); + +/** Retrieve the key size from key attributes. + * + * This function may be declared as `static` (i.e. without external + * linkage). This function may be provided as a function-like macro, + * but in this case it must evaluate its argument exactly once. + * + * \param[in] attributes The key attribute structure to query. + * + * \return The key size stored in the attribute structure, in bits. + */ +static size_t psa_get_key_bits(const psa_key_attributes_t *attributes); + +/** Retrieve the attributes of a key. + * + * This function first resets the attribute structure as with + * psa_reset_key_attributes(). It then copies the attributes of + * the given key into the given attribute structure. + * + * \note This function may allocate memory or other resources. + * Once you have called this function on an attribute structure, + * you must call psa_reset_key_attributes() to free these resources. + * + * \param[in] key Identifier of the key to query. + * \param[in,out] attributes On success, the attributes of the key. + * On failure, equivalent to a + * freshly-initialized structure. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_get_key_attributes(mbedtls_svc_key_id_t key, + psa_key_attributes_t *attributes); + +/** Reset a key attribute structure to a freshly initialized state. + * + * You must initialize the attribute structure as described in the + * documentation of the type #psa_key_attributes_t before calling this + * function. Once the structure has been initialized, you may call this + * function at any time. + * + * This function frees any auxiliary resources that the structure + * may contain. + * + * \param[in,out] attributes The attribute structure to reset. + */ +void psa_reset_key_attributes(psa_key_attributes_t *attributes); + +/**@}*/ + +/** \defgroup key_management Key management + * @{ + */ + +/** Remove non-essential copies of key material from memory. + * + * If the key identifier designates a volatile key, this functions does not do + * anything and returns successfully. + * + * If the key identifier designates a persistent key, then this function will + * free all resources associated with the key in volatile memory. The key + * data in persistent storage is not affected and the key can still be used. + * + * \param key Identifier of the key to purge. + * + * \retval #PSA_SUCCESS + * The key material will have been removed from memory if it is not + * currently required. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p key is not a valid key identifier. + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_purge_key(mbedtls_svc_key_id_t key); + +/** Make a copy of a key. + * + * Copy key material from one location to another. + * + * This function is primarily useful to copy a key from one location + * to another, since it populates a key using the material from + * another key which may have a different lifetime. + * + * This function may be used to share a key with a different party, + * subject to implementation-defined restrictions on key sharing. + * + * The policy on the source key must have the usage flag + * #PSA_KEY_USAGE_COPY set. + * This flag is sufficient to permit the copy if the key has the lifetime + * #PSA_KEY_LIFETIME_VOLATILE or #PSA_KEY_LIFETIME_PERSISTENT. + * Some secure elements do not provide a way to copy a key without + * making it extractable from the secure element. If a key is located + * in such a secure element, then the key must have both usage flags + * #PSA_KEY_USAGE_COPY and #PSA_KEY_USAGE_EXPORT in order to make + * a copy of the key outside the secure element. + * + * The resulting key may only be used in a way that conforms to + * both the policy of the original key and the policy specified in + * the \p attributes parameter: + * - The usage flags on the resulting key are the bitwise-and of the + * usage flags on the source policy and the usage flags in \p attributes. + * - If both allow the same algorithm or wildcard-based + * algorithm policy, the resulting key has the same algorithm policy. + * - If either of the policies allows an algorithm and the other policy + * allows a wildcard-based algorithm policy that includes this algorithm, + * the resulting key allows the same algorithm. + * - If the policies do not allow any algorithm in common, this function + * fails with the status #PSA_ERROR_INVALID_ARGUMENT. + * + * The effect of this function on implementation-defined attributes is + * implementation-defined. + * + * \param source_key The key to copy. It must allow the usage + * #PSA_KEY_USAGE_COPY. If a private or secret key is + * being copied outside of a secure element it must + * also allow #PSA_KEY_USAGE_EXPORT. + * \param[in] attributes The attributes for the new key. + * They are used as follows: + * - The key type and size may be 0. If either is + * nonzero, it must match the corresponding + * attribute of the source key. + * - The key location (the lifetime and, for + * persistent keys, the key identifier) is + * used directly. + * - The policy constraints (usage flags and + * algorithm policy) are combined from + * the source key and \p attributes so that + * both sets of restrictions apply, as + * described in the documentation of this function. + * \param[out] target_key On success, an identifier for the newly created + * key. For persistent keys, this is the key + * identifier defined in \p attributes. + * \c 0 on failure. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INVALID_HANDLE + * \p source_key is invalid. + * \retval #PSA_ERROR_ALREADY_EXISTS + * This is an attempt to create a persistent key, and there is + * already a persistent key with the given identifier. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The lifetime or identifier in \p attributes are invalid, or + * the policy constraints on the source and specified in + * \p attributes are incompatible, or + * \p attributes specifies a key type or key size + * which does not match the attributes of the source key. + * \retval #PSA_ERROR_NOT_PERMITTED + * The source key does not have the #PSA_KEY_USAGE_COPY usage flag, or + * the source key is not exportable and its lifetime does not + * allow copying it to the target's lifetime. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_STORAGE \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_copy_key(mbedtls_svc_key_id_t source_key, + const psa_key_attributes_t *attributes, + mbedtls_svc_key_id_t *target_key); + + +/** + * \brief Destroy a key. + * + * This function destroys a key from both volatile + * memory and, if applicable, non-volatile storage. Implementations shall + * make a best effort to ensure that the key material cannot be recovered. + * + * This function also erases any metadata such as policies and frees + * resources associated with the key. + * + * If a key is currently in use in a multipart operation, then destroying the + * key will cause the multipart operation to fail. + * + * \param key Identifier of the key to erase. If this is \c 0, do nothing and + * return #PSA_SUCCESS. + * + * \retval #PSA_SUCCESS + * \p key was a valid identifier and the key material that it + * referred to has been erased. Alternatively, \p key is \c 0. + * \retval #PSA_ERROR_NOT_PERMITTED + * The key cannot be erased because it is + * read-only, either due to a policy or due to physical restrictions. + * \retval #PSA_ERROR_INVALID_HANDLE + * \p key is not a valid identifier nor \c 0. + * \retval #PSA_ERROR_COMMUNICATION_FAILURE + * There was a failure in communication with the cryptoprocessor. + * The key material may still be present in the cryptoprocessor. + * \retval #PSA_ERROR_DATA_INVALID + * This error is typically a result of either storage corruption on a + * cleartext storage backend, or an attempt to read data that was + * written by an incompatible version of the library. + * \retval #PSA_ERROR_STORAGE_FAILURE + * The storage is corrupted. Implementations shall make a best effort + * to erase key material even in this stage, however applications + * should be aware that it may be impossible to guarantee that the + * key material is not recoverable in such cases. + * \retval #PSA_ERROR_CORRUPTION_DETECTED + * An unexpected condition which is not a storage corruption or + * a communication failure occurred. The cryptoprocessor may have + * been compromised. + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_destroy_key(mbedtls_svc_key_id_t key); + +/**@}*/ + +/** \defgroup import_export Key import and export + * @{ + */ + +/** + * \brief Import a key in binary format. + * + * This function supports any output from psa_export_key(). Refer to the + * documentation of psa_export_public_key() for the format of public keys + * and to the documentation of psa_export_key() for the format for + * other key types. + * + * The key data determines the key size. The attributes may optionally + * specify a key size; in this case it must match the size determined + * from the key data. A key size of 0 in \p attributes indicates that + * the key size is solely determined by the key data. + * + * Implementations must reject an attempt to import a key of size 0. + * + * This specification supports a single format for each key type. + * Implementations may support other formats as long as the standard + * format is supported. Implementations that support other formats + * should ensure that the formats are clearly unambiguous so as to + * minimize the risk that an invalid input is accidentally interpreted + * according to a different format. + * + * \param[in] attributes The attributes for the new key. + * The key size is always determined from the + * \p data buffer. + * If the key size in \p attributes is nonzero, + * it must be equal to the size from \p data. + * \param[out] key On success, an identifier to the newly created key. + * For persistent keys, this is the key identifier + * defined in \p attributes. + * \c 0 on failure. + * \param[in] data Buffer containing the key data. The content of this + * buffer is interpreted according to the type declared + * in \p attributes. + * All implementations must support at least the format + * described in the documentation + * of psa_export_key() or psa_export_public_key() for + * the chosen type. Implementations may allow other + * formats, but should be conservative: implementations + * should err on the side of rejecting content if it + * may be erroneous (e.g. wrong type or truncated data). + * \param data_length Size of the \p data buffer in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * If the key is persistent, the key material and the key's metadata + * have been saved to persistent storage. + * \retval #PSA_ERROR_ALREADY_EXISTS + * This is an attempt to create a persistent key, and there is + * already a persistent key with the given identifier. + * \retval #PSA_ERROR_NOT_SUPPORTED + * The key type or key size is not supported, either by the + * implementation in general or in this particular persistent location. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The key attributes, as a whole, are invalid, or + * the key data is not correctly formatted, or + * the size in \p attributes is nonzero and does not match the size + * of the key data. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_STORAGE \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_import_key(const psa_key_attributes_t *attributes, + const uint8_t *data, + size_t data_length, + mbedtls_svc_key_id_t *key); + + + +/** + * \brief Export a key in binary format. + * + * The output of this function can be passed to psa_import_key() to + * create an equivalent object. + * + * If the implementation of psa_import_key() supports other formats + * beyond the format specified here, the output from psa_export_key() + * must use the representation specified here, not the original + * representation. + * + * For standard key types, the output format is as follows: + * + * - For symmetric keys (including MAC keys), the format is the + * raw bytes of the key. + * - For DES, the key data consists of 8 bytes. The parity bits must be + * correct. + * - For Triple-DES, the format is the concatenation of the + * two or three DES keys. + * - For RSA key pairs (#PSA_KEY_TYPE_RSA_KEY_PAIR), the format + * is the non-encrypted DER encoding of the representation defined by + * PKCS\#1 (RFC 8017) as `RSAPrivateKey`, version 0. + * ``` + * RSAPrivateKey ::= SEQUENCE { + * version INTEGER, -- must be 0 + * modulus INTEGER, -- n + * publicExponent INTEGER, -- e + * privateExponent INTEGER, -- d + * prime1 INTEGER, -- p + * prime2 INTEGER, -- q + * exponent1 INTEGER, -- d mod (p-1) + * exponent2 INTEGER, -- d mod (q-1) + * coefficient INTEGER, -- (inverse of q) mod p + * } + * ``` + * - For elliptic curve key pairs (key types for which + * #PSA_KEY_TYPE_IS_ECC_KEY_PAIR is true), the format is + * a representation of the private value as a `ceiling(m/8)`-byte string + * where `m` is the bit size associated with the curve, i.e. the bit size + * of the order of the curve's coordinate field. This byte string is + * in little-endian order for Montgomery curves (curve types + * `PSA_ECC_FAMILY_CURVEXXX`), and in big-endian order for Weierstrass + * curves (curve types `PSA_ECC_FAMILY_SECTXXX`, `PSA_ECC_FAMILY_SECPXXX` + * and `PSA_ECC_FAMILY_BRAINPOOL_PXXX`). + * For Weierstrass curves, this is the content of the `privateKey` field of + * the `ECPrivateKey` format defined by RFC 5915. For Montgomery curves, + * the format is defined by RFC 7748, and output is masked according to §5. + * For twisted Edwards curves, the private key is as defined by RFC 8032 + * (a 32-byte string for Edwards25519, a 57-byte string for Edwards448). + * - For Diffie-Hellman key exchange key pairs (key types for which + * #PSA_KEY_TYPE_IS_DH_KEY_PAIR is true), the + * format is the representation of the private key `x` as a big-endian byte + * string. The length of the byte string is the private key size in bytes + * (leading zeroes are not stripped). + * - For public keys (key types for which #PSA_KEY_TYPE_IS_PUBLIC_KEY is + * true), the format is the same as for psa_export_public_key(). + * + * The policy on the key must have the usage flag #PSA_KEY_USAGE_EXPORT set. + * + * \param key Identifier of the key to export. It must allow the + * usage #PSA_KEY_USAGE_EXPORT, unless it is a public + * key. + * \param[out] data Buffer where the key data is to be written. + * \param data_size Size of the \p data buffer in bytes. + * \param[out] data_length On success, the number of bytes + * that make up the key data. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED + * The key does not have the #PSA_KEY_USAGE_EXPORT flag. + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p data buffer is too small. You can determine a + * sufficient buffer size by calling + * #PSA_EXPORT_KEY_OUTPUT_SIZE(\c type, \c bits) + * where \c type is the key type + * and \c bits is the key size in bits. + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_export_key(mbedtls_svc_key_id_t key, + uint8_t *data, + size_t data_size, + size_t *data_length); + +/** + * \brief Export a public key or the public part of a key pair in binary format. + * + * The output of this function can be passed to psa_import_key() to + * create an object that is equivalent to the public key. + * + * This specification supports a single format for each key type. + * Implementations may support other formats as long as the standard + * format is supported. Implementations that support other formats + * should ensure that the formats are clearly unambiguous so as to + * minimize the risk that an invalid input is accidentally interpreted + * according to a different format. + * + * For standard key types, the output format is as follows: + * - For RSA public keys (#PSA_KEY_TYPE_RSA_PUBLIC_KEY), the DER encoding of + * the representation defined by RFC 3279 §2.3.1 as `RSAPublicKey`. + * ``` + * RSAPublicKey ::= SEQUENCE { + * modulus INTEGER, -- n + * publicExponent INTEGER } -- e + * ``` + * - For elliptic curve keys on a twisted Edwards curve (key types for which + * #PSA_KEY_TYPE_IS_ECC_PUBLIC_KEY is true and #PSA_KEY_TYPE_ECC_GET_FAMILY + * returns #PSA_ECC_FAMILY_TWISTED_EDWARDS), the public key is as defined + * by RFC 8032 + * (a 32-byte string for Edwards25519, a 57-byte string for Edwards448). + * - For other elliptic curve public keys (key types for which + * #PSA_KEY_TYPE_IS_ECC_PUBLIC_KEY is true), the format is the uncompressed + * representation defined by SEC1 §2.3.3 as the content of an ECPoint. + * Let `m` be the bit size associated with the curve, i.e. the bit size of + * `q` for a curve over `F_q`. The representation consists of: + * - The byte 0x04; + * - `x_P` as a `ceiling(m/8)`-byte string, big-endian; + * - `y_P` as a `ceiling(m/8)`-byte string, big-endian. + * - For Diffie-Hellman key exchange public keys (key types for which + * #PSA_KEY_TYPE_IS_DH_PUBLIC_KEY is true), + * the format is the representation of the public key `y = g^x mod p` as a + * big-endian byte string. The length of the byte string is the length of the + * base prime `p` in bytes. + * + * Exporting a public key object or the public part of a key pair is + * always permitted, regardless of the key's usage flags. + * + * \param key Identifier of the key to export. + * \param[out] data Buffer where the key data is to be written. + * \param data_size Size of the \p data buffer in bytes. + * \param[out] data_length On success, the number of bytes + * that make up the key data. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The key is neither a public key nor a key pair. + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p data buffer is too small. You can determine a + * sufficient buffer size by calling + * #PSA_EXPORT_KEY_OUTPUT_SIZE(#PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(\c type), \c bits) + * where \c type is the key type + * and \c bits is the key size in bits. + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_export_public_key(mbedtls_svc_key_id_t key, + uint8_t *data, + size_t data_size, + size_t *data_length); + + + +/**@}*/ + +/** \defgroup hash Message digests + * @{ + */ + +/** Calculate the hash (digest) of a message. + * + * \note To verify the hash of a message against an + * expected value, use psa_hash_compare() instead. + * + * \param alg The hash algorithm to compute (\c PSA_ALG_XXX value + * such that #PSA_ALG_IS_HASH(\p alg) is true). + * \param[in] input Buffer containing the message to hash. + * \param input_length Size of the \p input buffer in bytes. + * \param[out] hash Buffer where the hash is to be written. + * \param hash_size Size of the \p hash buffer in bytes. + * \param[out] hash_length On success, the number of bytes + * that make up the hash value. This is always + * #PSA_HASH_LENGTH(\p alg). + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not supported or is not a hash algorithm. + * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * \p hash_size is too small + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_hash_compute(psa_algorithm_t alg, + const uint8_t *input, + size_t input_length, + uint8_t *hash, + size_t hash_size, + size_t *hash_length); + +/** Calculate the hash (digest) of a message and compare it with a + * reference value. + * + * \param alg The hash algorithm to compute (\c PSA_ALG_XXX value + * such that #PSA_ALG_IS_HASH(\p alg) is true). + * \param[in] input Buffer containing the message to hash. + * \param input_length Size of the \p input buffer in bytes. + * \param[out] hash Buffer containing the expected hash value. + * \param hash_length Size of the \p hash buffer in bytes. + * + * \retval #PSA_SUCCESS + * The expected hash is identical to the actual hash of the input. + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The hash of the message was calculated successfully, but it + * differs from the expected hash. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not supported or is not a hash algorithm. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p input_length or \p hash_length do not match the hash size for \p alg + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_hash_compare(psa_algorithm_t alg, + const uint8_t *input, + size_t input_length, + const uint8_t *hash, + size_t hash_length); + +/** The type of the state data structure for multipart hash operations. + * + * Before calling any function on a hash operation object, the application must + * initialize it by any of the following means: + * - Set the structure to all-bits-zero, for example: + * \code + * psa_hash_operation_t operation; + * memset(&operation, 0, sizeof(operation)); + * \endcode + * - Initialize the structure to logical zero values, for example: + * \code + * psa_hash_operation_t operation = {0}; + * \endcode + * - Initialize the structure to the initializer #PSA_HASH_OPERATION_INIT, + * for example: + * \code + * psa_hash_operation_t operation = PSA_HASH_OPERATION_INIT; + * \endcode + * - Assign the result of the function psa_hash_operation_init() + * to the structure, for example: + * \code + * psa_hash_operation_t operation; + * operation = psa_hash_operation_init(); + * \endcode + * + * This is an implementation-defined \c struct. Applications should not + * make any assumptions about the content of this structure. + * Implementation details can change in future versions without notice. */ +typedef struct psa_hash_operation_s psa_hash_operation_t; + +/** \def PSA_HASH_OPERATION_INIT + * + * This macro returns a suitable initializer for a hash operation object + * of type #psa_hash_operation_t. + */ + +/** Return an initial value for a hash operation object. + */ +static psa_hash_operation_t psa_hash_operation_init(void); + +/** Set up a multipart hash operation. + * + * The sequence of operations to calculate a hash (message digest) + * is as follows: + * -# Allocate an operation object which will be passed to all the functions + * listed here. + * -# Initialize the operation object with one of the methods described in the + * documentation for #psa_hash_operation_t, e.g. #PSA_HASH_OPERATION_INIT. + * -# Call psa_hash_setup() to specify the algorithm. + * -# Call psa_hash_update() zero, one or more times, passing a fragment + * of the message each time. The hash that is calculated is the hash + * of the concatenation of these messages in order. + * -# To calculate the hash, call psa_hash_finish(). + * To compare the hash with an expected value, call psa_hash_verify(). + * + * If an error occurs at any step after a call to psa_hash_setup(), the + * operation will need to be reset by a call to psa_hash_abort(). The + * application may call psa_hash_abort() at any time after the operation + * has been initialized. + * + * After a successful call to psa_hash_setup(), the application must + * eventually terminate the operation. The following events terminate an + * operation: + * - A successful call to psa_hash_finish() or psa_hash_verify(). + * - A call to psa_hash_abort(). + * + * \param[in,out] operation The operation object to set up. It must have + * been initialized as per the documentation for + * #psa_hash_operation_t and not yet in use. + * \param alg The hash algorithm to compute (\c PSA_ALG_XXX value + * such that #PSA_ALG_IS_HASH(\p alg) is true). + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not a supported hash algorithm. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p alg is not a hash algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be inactive), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_hash_setup(psa_hash_operation_t *operation, + psa_algorithm_t alg); + +/** Add a message fragment to a multipart hash operation. + * + * The application must call psa_hash_setup() before calling this function. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_hash_abort(). + * + * \param[in,out] operation Active hash operation. + * \param[in] input Buffer containing the message fragment to hash. + * \param input_length Size of the \p input buffer in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_hash_update(psa_hash_operation_t *operation, + const uint8_t *input, + size_t input_length); + +/** Finish the calculation of the hash of a message. + * + * The application must call psa_hash_setup() before calling this function. + * This function calculates the hash of the message formed by concatenating + * the inputs passed to preceding calls to psa_hash_update(). + * + * When this function returns successfully, the operation becomes inactive. + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_hash_abort(). + * + * \warning Applications should not call this function if they expect + * a specific value for the hash. Call psa_hash_verify() instead. + * Beware that comparing integrity or authenticity data such as + * hash values with a function such as \c memcmp is risky + * because the time taken by the comparison may leak information + * about the hashed data which could allow an attacker to guess + * a valid hash and thereby bypass security controls. + * + * \param[in,out] operation Active hash operation. + * \param[out] hash Buffer where the hash is to be written. + * \param hash_size Size of the \p hash buffer in bytes. + * \param[out] hash_length On success, the number of bytes + * that make up the hash value. This is always + * #PSA_HASH_LENGTH(\c alg) where \c alg is the + * hash algorithm that is calculated. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p hash buffer is too small. You can determine a + * sufficient buffer size by calling #PSA_HASH_LENGTH(\c alg) + * where \c alg is the hash algorithm that is calculated. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_hash_finish(psa_hash_operation_t *operation, + uint8_t *hash, + size_t hash_size, + size_t *hash_length); + +/** Finish the calculation of the hash of a message and compare it with + * an expected value. + * + * The application must call psa_hash_setup() before calling this function. + * This function calculates the hash of the message formed by concatenating + * the inputs passed to preceding calls to psa_hash_update(). It then + * compares the calculated hash with the expected hash passed as a + * parameter to this function. + * + * When this function returns successfully, the operation becomes inactive. + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_hash_abort(). + * + * \note Implementations shall make the best effort to ensure that the + * comparison between the actual hash and the expected hash is performed + * in constant time. + * + * \param[in,out] operation Active hash operation. + * \param[in] hash Buffer containing the expected hash value. + * \param hash_length Size of the \p hash buffer in bytes. + * + * \retval #PSA_SUCCESS + * The expected hash is identical to the actual hash of the message. + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The hash of the message was calculated successfully, but it + * differs from the expected hash. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_hash_verify(psa_hash_operation_t *operation, + const uint8_t *hash, + size_t hash_length); + +/** Abort a hash operation. + * + * Aborting an operation frees all associated resources except for the + * \p operation structure itself. Once aborted, the operation object + * can be reused for another operation by calling + * psa_hash_setup() again. + * + * You may call this function any time after the operation object has + * been initialized by one of the methods described in #psa_hash_operation_t. + * + * In particular, calling psa_hash_abort() after the operation has been + * terminated by a call to psa_hash_abort(), psa_hash_finish() or + * psa_hash_verify() is safe and has no effect. + * + * \param[in,out] operation Initialized hash operation. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_hash_abort(psa_hash_operation_t *operation); + +/** Clone a hash operation. + * + * This function copies the state of an ongoing hash operation to + * a new operation object. In other words, this function is equivalent + * to calling psa_hash_setup() on \p target_operation with the same + * algorithm that \p source_operation was set up for, then + * psa_hash_update() on \p target_operation with the same input that + * that was passed to \p source_operation. After this function returns, the + * two objects are independent, i.e. subsequent calls involving one of + * the objects do not affect the other object. + * + * \param[in] source_operation The active hash operation to clone. + * \param[in,out] target_operation The operation object to set up. + * It must be initialized but not active. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The \p source_operation state is not valid (it must be active), or + * the \p target_operation state is not valid (it must be inactive), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_hash_clone(const psa_hash_operation_t *source_operation, + psa_hash_operation_t *target_operation); + +/**@}*/ + +/** \defgroup MAC Message authentication codes + * @{ + */ + +/** Calculate the MAC (message authentication code) of a message. + * + * \note To verify the MAC of a message against an + * expected value, use psa_mac_verify() instead. + * Beware that comparing integrity or authenticity data such as + * MAC values with a function such as \c memcmp is risky + * because the time taken by the comparison may leak information + * about the MAC value which could allow an attacker to guess + * a valid MAC and thereby bypass security controls. + * + * \param key Identifier of the key to use for the operation. It + * must allow the usage PSA_KEY_USAGE_SIGN_MESSAGE. + * \param alg The MAC algorithm to compute (\c PSA_ALG_XXX value + * such that #PSA_ALG_IS_MAC(\p alg) is true). + * \param[in] input Buffer containing the input message. + * \param input_length Size of the \p input buffer in bytes. + * \param[out] mac Buffer where the MAC value is to be written. + * \param mac_size Size of the \p mac buffer in bytes. + * \param[out] mac_length On success, the number of bytes + * that make up the MAC value. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p key is not compatible with \p alg. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not supported or is not a MAC algorithm. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * \p mac_size is too small + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE + * The key could not be retrieved from storage. + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_mac_compute(mbedtls_svc_key_id_t key, + psa_algorithm_t alg, + const uint8_t *input, + size_t input_length, + uint8_t *mac, + size_t mac_size, + size_t *mac_length); + +/** Calculate the MAC of a message and compare it with a reference value. + * + * \param key Identifier of the key to use for the operation. It + * must allow the usage PSA_KEY_USAGE_VERIFY_MESSAGE. + * \param alg The MAC algorithm to compute (\c PSA_ALG_XXX value + * such that #PSA_ALG_IS_MAC(\p alg) is true). + * \param[in] input Buffer containing the input message. + * \param input_length Size of the \p input buffer in bytes. + * \param[out] mac Buffer containing the expected MAC value. + * \param mac_length Size of the \p mac buffer in bytes. + * + * \retval #PSA_SUCCESS + * The expected MAC is identical to the actual MAC of the input. + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The MAC of the message was calculated successfully, but it + * differs from the expected value. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p key is not compatible with \p alg. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not supported or is not a MAC algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE + * The key could not be retrieved from storage. + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_mac_verify(mbedtls_svc_key_id_t key, + psa_algorithm_t alg, + const uint8_t *input, + size_t input_length, + const uint8_t *mac, + size_t mac_length); + +/** The type of the state data structure for multipart MAC operations. + * + * Before calling any function on a MAC operation object, the application must + * initialize it by any of the following means: + * - Set the structure to all-bits-zero, for example: + * \code + * psa_mac_operation_t operation; + * memset(&operation, 0, sizeof(operation)); + * \endcode + * - Initialize the structure to logical zero values, for example: + * \code + * psa_mac_operation_t operation = {0}; + * \endcode + * - Initialize the structure to the initializer #PSA_MAC_OPERATION_INIT, + * for example: + * \code + * psa_mac_operation_t operation = PSA_MAC_OPERATION_INIT; + * \endcode + * - Assign the result of the function psa_mac_operation_init() + * to the structure, for example: + * \code + * psa_mac_operation_t operation; + * operation = psa_mac_operation_init(); + * \endcode + * + * + * This is an implementation-defined \c struct. Applications should not + * make any assumptions about the content of this structure. + * Implementation details can change in future versions without notice. */ +typedef struct psa_mac_operation_s psa_mac_operation_t; + +/** \def PSA_MAC_OPERATION_INIT + * + * This macro returns a suitable initializer for a MAC operation object of type + * #psa_mac_operation_t. + */ + +/** Return an initial value for a MAC operation object. + */ +static psa_mac_operation_t psa_mac_operation_init(void); + +/** Set up a multipart MAC calculation operation. + * + * This function sets up the calculation of the MAC + * (message authentication code) of a byte string. + * To verify the MAC of a message against an + * expected value, use psa_mac_verify_setup() instead. + * + * The sequence of operations to calculate a MAC is as follows: + * -# Allocate an operation object which will be passed to all the functions + * listed here. + * -# Initialize the operation object with one of the methods described in the + * documentation for #psa_mac_operation_t, e.g. #PSA_MAC_OPERATION_INIT. + * -# Call psa_mac_sign_setup() to specify the algorithm and key. + * -# Call psa_mac_update() zero, one or more times, passing a fragment + * of the message each time. The MAC that is calculated is the MAC + * of the concatenation of these messages in order. + * -# At the end of the message, call psa_mac_sign_finish() to finish + * calculating the MAC value and retrieve it. + * + * If an error occurs at any step after a call to psa_mac_sign_setup(), the + * operation will need to be reset by a call to psa_mac_abort(). The + * application may call psa_mac_abort() at any time after the operation + * has been initialized. + * + * After a successful call to psa_mac_sign_setup(), the application must + * eventually terminate the operation through one of the following methods: + * - A successful call to psa_mac_sign_finish(). + * - A call to psa_mac_abort(). + * + * \param[in,out] operation The operation object to set up. It must have + * been initialized as per the documentation for + * #psa_mac_operation_t and not yet in use. + * \param key Identifier of the key to use for the operation. It + * must remain valid until the operation terminates. + * It must allow the usage PSA_KEY_USAGE_SIGN_MESSAGE. + * \param alg The MAC algorithm to compute (\c PSA_ALG_XXX value + * such that #PSA_ALG_IS_MAC(\p alg) is true). + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p key is not compatible with \p alg. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not supported or is not a MAC algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE + * The key could not be retrieved from storage. + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be inactive), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_mac_sign_setup(psa_mac_operation_t *operation, + mbedtls_svc_key_id_t key, + psa_algorithm_t alg); + +/** Set up a multipart MAC verification operation. + * + * This function sets up the verification of the MAC + * (message authentication code) of a byte string against an expected value. + * + * The sequence of operations to verify a MAC is as follows: + * -# Allocate an operation object which will be passed to all the functions + * listed here. + * -# Initialize the operation object with one of the methods described in the + * documentation for #psa_mac_operation_t, e.g. #PSA_MAC_OPERATION_INIT. + * -# Call psa_mac_verify_setup() to specify the algorithm and key. + * -# Call psa_mac_update() zero, one or more times, passing a fragment + * of the message each time. The MAC that is calculated is the MAC + * of the concatenation of these messages in order. + * -# At the end of the message, call psa_mac_verify_finish() to finish + * calculating the actual MAC of the message and verify it against + * the expected value. + * + * If an error occurs at any step after a call to psa_mac_verify_setup(), the + * operation will need to be reset by a call to psa_mac_abort(). The + * application may call psa_mac_abort() at any time after the operation + * has been initialized. + * + * After a successful call to psa_mac_verify_setup(), the application must + * eventually terminate the operation through one of the following methods: + * - A successful call to psa_mac_verify_finish(). + * - A call to psa_mac_abort(). + * + * \param[in,out] operation The operation object to set up. It must have + * been initialized as per the documentation for + * #psa_mac_operation_t and not yet in use. + * \param key Identifier of the key to use for the operation. It + * must remain valid until the operation terminates. + * It must allow the usage + * PSA_KEY_USAGE_VERIFY_MESSAGE. + * \param alg The MAC algorithm to compute (\c PSA_ALG_XXX value + * such that #PSA_ALG_IS_MAC(\p alg) is true). + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \c key is not compatible with \c alg. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \c alg is not supported or is not a MAC algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE + * The key could not be retrieved from storage. + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be inactive), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_mac_verify_setup(psa_mac_operation_t *operation, + mbedtls_svc_key_id_t key, + psa_algorithm_t alg); + +/** Add a message fragment to a multipart MAC operation. + * + * The application must call psa_mac_sign_setup() or psa_mac_verify_setup() + * before calling this function. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_mac_abort(). + * + * \param[in,out] operation Active MAC operation. + * \param[in] input Buffer containing the message fragment to add to + * the MAC calculation. + * \param input_length Size of the \p input buffer in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_mac_update(psa_mac_operation_t *operation, + const uint8_t *input, + size_t input_length); + +/** Finish the calculation of the MAC of a message. + * + * The application must call psa_mac_sign_setup() before calling this function. + * This function calculates the MAC of the message formed by concatenating + * the inputs passed to preceding calls to psa_mac_update(). + * + * When this function returns successfully, the operation becomes inactive. + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_mac_abort(). + * + * \warning Applications should not call this function if they expect + * a specific value for the MAC. Call psa_mac_verify_finish() instead. + * Beware that comparing integrity or authenticity data such as + * MAC values with a function such as \c memcmp is risky + * because the time taken by the comparison may leak information + * about the MAC value which could allow an attacker to guess + * a valid MAC and thereby bypass security controls. + * + * \param[in,out] operation Active MAC operation. + * \param[out] mac Buffer where the MAC value is to be written. + * \param mac_size Size of the \p mac buffer in bytes. + * \param[out] mac_length On success, the number of bytes + * that make up the MAC value. This is always + * #PSA_MAC_LENGTH(\c key_type, \c key_bits, \c alg) + * where \c key_type and \c key_bits are the type and + * bit-size respectively of the key and \c alg is the + * MAC algorithm that is calculated. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p mac buffer is too small. You can determine a + * sufficient buffer size by calling PSA_MAC_LENGTH(). + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be an active mac sign + * operation), or the library has not been previously initialized + * by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_mac_sign_finish(psa_mac_operation_t *operation, + uint8_t *mac, + size_t mac_size, + size_t *mac_length); + +/** Finish the calculation of the MAC of a message and compare it with + * an expected value. + * + * The application must call psa_mac_verify_setup() before calling this function. + * This function calculates the MAC of the message formed by concatenating + * the inputs passed to preceding calls to psa_mac_update(). It then + * compares the calculated MAC with the expected MAC passed as a + * parameter to this function. + * + * When this function returns successfully, the operation becomes inactive. + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_mac_abort(). + * + * \note Implementations shall make the best effort to ensure that the + * comparison between the actual MAC and the expected MAC is performed + * in constant time. + * + * \param[in,out] operation Active MAC operation. + * \param[in] mac Buffer containing the expected MAC value. + * \param mac_length Size of the \p mac buffer in bytes. + * + * \retval #PSA_SUCCESS + * The expected MAC is identical to the actual MAC of the message. + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The MAC of the message was calculated successfully, but it + * differs from the expected MAC. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be an active mac verify + * operation), or the library has not been previously initialized + * by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_mac_verify_finish(psa_mac_operation_t *operation, + const uint8_t *mac, + size_t mac_length); + +/** Abort a MAC operation. + * + * Aborting an operation frees all associated resources except for the + * \p operation structure itself. Once aborted, the operation object + * can be reused for another operation by calling + * psa_mac_sign_setup() or psa_mac_verify_setup() again. + * + * You may call this function any time after the operation object has + * been initialized by one of the methods described in #psa_mac_operation_t. + * + * In particular, calling psa_mac_abort() after the operation has been + * terminated by a call to psa_mac_abort(), psa_mac_sign_finish() or + * psa_mac_verify_finish() is safe and has no effect. + * + * \param[in,out] operation Initialized MAC operation. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_mac_abort(psa_mac_operation_t *operation); + +/**@}*/ + +/** \defgroup cipher Symmetric ciphers + * @{ + */ + +/** Encrypt a message using a symmetric cipher. + * + * This function encrypts a message with a random IV (initialization + * vector). Use the multipart operation interface with a + * #psa_cipher_operation_t object to provide other forms of IV. + * + * \param key Identifier of the key to use for the operation. + * It must allow the usage #PSA_KEY_USAGE_ENCRYPT. + * \param alg The cipher algorithm to compute + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_CIPHER(\p alg) is true). + * \param[in] input Buffer containing the message to encrypt. + * \param input_length Size of the \p input buffer in bytes. + * \param[out] output Buffer where the output is to be written. + * The output contains the IV followed by + * the ciphertext proper. + * \param output_size Size of the \p output buffer in bytes. + * \param[out] output_length On success, the number of bytes + * that make up the output. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p key is not compatible with \p alg. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not supported or is not a cipher algorithm. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_cipher_encrypt(mbedtls_svc_key_id_t key, + psa_algorithm_t alg, + const uint8_t *input, + size_t input_length, + uint8_t *output, + size_t output_size, + size_t *output_length); + +/** Decrypt a message using a symmetric cipher. + * + * This function decrypts a message encrypted with a symmetric cipher. + * + * \param key Identifier of the key to use for the operation. + * It must remain valid until the operation + * terminates. It must allow the usage + * #PSA_KEY_USAGE_DECRYPT. + * \param alg The cipher algorithm to compute + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_CIPHER(\p alg) is true). + * \param[in] input Buffer containing the message to decrypt. + * This consists of the IV followed by the + * ciphertext proper. + * \param input_length Size of the \p input buffer in bytes. + * \param[out] output Buffer where the plaintext is to be written. + * \param output_size Size of the \p output buffer in bytes. + * \param[out] output_length On success, the number of bytes + * that make up the output. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p key is not compatible with \p alg. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not supported or is not a cipher algorithm. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_cipher_decrypt(mbedtls_svc_key_id_t key, + psa_algorithm_t alg, + const uint8_t *input, + size_t input_length, + uint8_t *output, + size_t output_size, + size_t *output_length); + +/** The type of the state data structure for multipart cipher operations. + * + * Before calling any function on a cipher operation object, the application + * must initialize it by any of the following means: + * - Set the structure to all-bits-zero, for example: + * \code + * psa_cipher_operation_t operation; + * memset(&operation, 0, sizeof(operation)); + * \endcode + * - Initialize the structure to logical zero values, for example: + * \code + * psa_cipher_operation_t operation = {0}; + * \endcode + * - Initialize the structure to the initializer #PSA_CIPHER_OPERATION_INIT, + * for example: + * \code + * psa_cipher_operation_t operation = PSA_CIPHER_OPERATION_INIT; + * \endcode + * - Assign the result of the function psa_cipher_operation_init() + * to the structure, for example: + * \code + * psa_cipher_operation_t operation; + * operation = psa_cipher_operation_init(); + * \endcode + * + * This is an implementation-defined \c struct. Applications should not + * make any assumptions about the content of this structure. + * Implementation details can change in future versions without notice. */ +typedef struct psa_cipher_operation_s psa_cipher_operation_t; + +/** \def PSA_CIPHER_OPERATION_INIT + * + * This macro returns a suitable initializer for a cipher operation object of + * type #psa_cipher_operation_t. + */ + +/** Return an initial value for a cipher operation object. + */ +static psa_cipher_operation_t psa_cipher_operation_init(void); + +/** Set the key for a multipart symmetric encryption operation. + * + * The sequence of operations to encrypt a message with a symmetric cipher + * is as follows: + * -# Allocate an operation object which will be passed to all the functions + * listed here. + * -# Initialize the operation object with one of the methods described in the + * documentation for #psa_cipher_operation_t, e.g. + * #PSA_CIPHER_OPERATION_INIT. + * -# Call psa_cipher_encrypt_setup() to specify the algorithm and key. + * -# Call either psa_cipher_generate_iv() or psa_cipher_set_iv() to + * generate or set the IV (initialization vector). You should use + * psa_cipher_generate_iv() unless the protocol you are implementing + * requires a specific IV value. + * -# Call psa_cipher_update() zero, one or more times, passing a fragment + * of the message each time. + * -# Call psa_cipher_finish(). + * + * If an error occurs at any step after a call to psa_cipher_encrypt_setup(), + * the operation will need to be reset by a call to psa_cipher_abort(). The + * application may call psa_cipher_abort() at any time after the operation + * has been initialized. + * + * After a successful call to psa_cipher_encrypt_setup(), the application must + * eventually terminate the operation. The following events terminate an + * operation: + * - A successful call to psa_cipher_finish(). + * - A call to psa_cipher_abort(). + * + * \param[in,out] operation The operation object to set up. It must have + * been initialized as per the documentation for + * #psa_cipher_operation_t and not yet in use. + * \param key Identifier of the key to use for the operation. + * It must remain valid until the operation + * terminates. It must allow the usage + * #PSA_KEY_USAGE_ENCRYPT. + * \param alg The cipher algorithm to compute + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_CIPHER(\p alg) is true). + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p key is not compatible with \p alg. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not supported or is not a cipher algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be inactive), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_cipher_encrypt_setup(psa_cipher_operation_t *operation, + mbedtls_svc_key_id_t key, + psa_algorithm_t alg); + +/** Set the key for a multipart symmetric decryption operation. + * + * The sequence of operations to decrypt a message with a symmetric cipher + * is as follows: + * -# Allocate an operation object which will be passed to all the functions + * listed here. + * -# Initialize the operation object with one of the methods described in the + * documentation for #psa_cipher_operation_t, e.g. + * #PSA_CIPHER_OPERATION_INIT. + * -# Call psa_cipher_decrypt_setup() to specify the algorithm and key. + * -# Call psa_cipher_set_iv() with the IV (initialization vector) for the + * decryption. If the IV is prepended to the ciphertext, you can call + * psa_cipher_update() on a buffer containing the IV followed by the + * beginning of the message. + * -# Call psa_cipher_update() zero, one or more times, passing a fragment + * of the message each time. + * -# Call psa_cipher_finish(). + * + * If an error occurs at any step after a call to psa_cipher_decrypt_setup(), + * the operation will need to be reset by a call to psa_cipher_abort(). The + * application may call psa_cipher_abort() at any time after the operation + * has been initialized. + * + * After a successful call to psa_cipher_decrypt_setup(), the application must + * eventually terminate the operation. The following events terminate an + * operation: + * - A successful call to psa_cipher_finish(). + * - A call to psa_cipher_abort(). + * + * \param[in,out] operation The operation object to set up. It must have + * been initialized as per the documentation for + * #psa_cipher_operation_t and not yet in use. + * \param key Identifier of the key to use for the operation. + * It must remain valid until the operation + * terminates. It must allow the usage + * #PSA_KEY_USAGE_DECRYPT. + * \param alg The cipher algorithm to compute + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_CIPHER(\p alg) is true). + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p key is not compatible with \p alg. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not supported or is not a cipher algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be inactive), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_cipher_decrypt_setup(psa_cipher_operation_t *operation, + mbedtls_svc_key_id_t key, + psa_algorithm_t alg); + +/** Generate an IV for a symmetric encryption operation. + * + * This function generates a random IV (initialization vector), nonce + * or initial counter value for the encryption operation as appropriate + * for the chosen algorithm, key type and key size. + * + * The application must call psa_cipher_encrypt_setup() before + * calling this function. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_cipher_abort(). + * + * \param[in,out] operation Active cipher operation. + * \param[out] iv Buffer where the generated IV is to be written. + * \param iv_size Size of the \p iv buffer in bytes. + * \param[out] iv_length On success, the number of bytes of the + * generated IV. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p iv buffer is too small. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active, with no IV set), + * or the library has not been previously initialized + * by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_cipher_generate_iv(psa_cipher_operation_t *operation, + uint8_t *iv, + size_t iv_size, + size_t *iv_length); + +/** Set the IV for a symmetric encryption or decryption operation. + * + * This function sets the IV (initialization vector), nonce + * or initial counter value for the encryption or decryption operation. + * + * The application must call psa_cipher_encrypt_setup() before + * calling this function. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_cipher_abort(). + * + * \note When encrypting, applications should use psa_cipher_generate_iv() + * instead of this function, unless implementing a protocol that requires + * a non-random IV. + * + * \param[in,out] operation Active cipher operation. + * \param[in] iv Buffer containing the IV to use. + * \param iv_length Size of the IV in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The size of \p iv is not acceptable for the chosen algorithm, + * or the chosen algorithm does not use an IV. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be an active cipher + * encrypt operation, with no IV set), or the library has not been + * previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_cipher_set_iv(psa_cipher_operation_t *operation, + const uint8_t *iv, + size_t iv_length); + +/** Encrypt or decrypt a message fragment in an active cipher operation. + * + * Before calling this function, you must: + * 1. Call either psa_cipher_encrypt_setup() or psa_cipher_decrypt_setup(). + * The choice of setup function determines whether this function + * encrypts or decrypts its input. + * 2. If the algorithm requires an IV, call psa_cipher_generate_iv() + * (recommended when encrypting) or psa_cipher_set_iv(). + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_cipher_abort(). + * + * \param[in,out] operation Active cipher operation. + * \param[in] input Buffer containing the message fragment to + * encrypt or decrypt. + * \param input_length Size of the \p input buffer in bytes. + * \param[out] output Buffer where the output is to be written. + * \param output_size Size of the \p output buffer in bytes. + * \param[out] output_length On success, the number of bytes + * that make up the returned output. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p output buffer is too small. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active, with an IV set + * if required for the algorithm), or the library has not been + * previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_cipher_update(psa_cipher_operation_t *operation, + const uint8_t *input, + size_t input_length, + uint8_t *output, + size_t output_size, + size_t *output_length); + +/** Finish encrypting or decrypting a message in a cipher operation. + * + * The application must call psa_cipher_encrypt_setup() or + * psa_cipher_decrypt_setup() before calling this function. The choice + * of setup function determines whether this function encrypts or + * decrypts its input. + * + * This function finishes the encryption or decryption of the message + * formed by concatenating the inputs passed to preceding calls to + * psa_cipher_update(). + * + * When this function returns successfully, the operation becomes inactive. + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_cipher_abort(). + * + * \param[in,out] operation Active cipher operation. + * \param[out] output Buffer where the output is to be written. + * \param output_size Size of the \p output buffer in bytes. + * \param[out] output_length On success, the number of bytes + * that make up the returned output. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The total input size passed to this operation is not valid for + * this particular algorithm. For example, the algorithm is a based + * on block cipher and requires a whole number of blocks, but the + * total input size is not a multiple of the block size. + * \retval #PSA_ERROR_INVALID_PADDING + * This is a decryption operation for an algorithm that includes + * padding, and the ciphertext does not contain valid padding. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p output buffer is too small. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active, with an IV set + * if required for the algorithm), or the library has not been + * previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_cipher_finish(psa_cipher_operation_t *operation, + uint8_t *output, + size_t output_size, + size_t *output_length); + +/** Abort a cipher operation. + * + * Aborting an operation frees all associated resources except for the + * \p operation structure itself. Once aborted, the operation object + * can be reused for another operation by calling + * psa_cipher_encrypt_setup() or psa_cipher_decrypt_setup() again. + * + * You may call this function any time after the operation object has + * been initialized as described in #psa_cipher_operation_t. + * + * In particular, calling psa_cipher_abort() after the operation has been + * terminated by a call to psa_cipher_abort() or psa_cipher_finish() + * is safe and has no effect. + * + * \param[in,out] operation Initialized cipher operation. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_cipher_abort(psa_cipher_operation_t *operation); + +/**@}*/ + +/** \defgroup aead Authenticated encryption with associated data (AEAD) + * @{ + */ + +/** Process an authenticated encryption operation. + * + * \param key Identifier of the key to use for the + * operation. It must allow the usage + * #PSA_KEY_USAGE_ENCRYPT. + * \param alg The AEAD algorithm to compute + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(\p alg) is true). + * \param[in] nonce Nonce or IV to use. + * \param nonce_length Size of the \p nonce buffer in bytes. + * \param[in] additional_data Additional data that will be authenticated + * but not encrypted. + * \param additional_data_length Size of \p additional_data in bytes. + * \param[in] plaintext Data that will be authenticated and + * encrypted. + * \param plaintext_length Size of \p plaintext in bytes. + * \param[out] ciphertext Output buffer for the authenticated and + * encrypted data. The additional data is not + * part of this output. For algorithms where the + * encrypted data and the authentication tag + * are defined as separate outputs, the + * authentication tag is appended to the + * encrypted data. + * \param ciphertext_size Size of the \p ciphertext buffer in bytes. + * This must be appropriate for the selected + * algorithm and key: + * - A sufficient output size is + * #PSA_AEAD_ENCRYPT_OUTPUT_SIZE(\c key_type, + * \p alg, \p plaintext_length) where + * \c key_type is the type of \p key. + * - #PSA_AEAD_ENCRYPT_OUTPUT_MAX_SIZE(\p + * plaintext_length) evaluates to the maximum + * ciphertext size of any supported AEAD + * encryption. + * \param[out] ciphertext_length On success, the size of the output + * in the \p ciphertext buffer. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p key is not compatible with \p alg. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not supported or is not an AEAD algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * \p ciphertext_size is too small. + * #PSA_AEAD_ENCRYPT_OUTPUT_SIZE(\c key_type, \p alg, + * \p plaintext_length) or + * #PSA_AEAD_ENCRYPT_OUTPUT_MAX_SIZE(\p plaintext_length) can be used to + * determine the required buffer size. + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_aead_encrypt(mbedtls_svc_key_id_t key, + psa_algorithm_t alg, + const uint8_t *nonce, + size_t nonce_length, + const uint8_t *additional_data, + size_t additional_data_length, + const uint8_t *plaintext, + size_t plaintext_length, + uint8_t *ciphertext, + size_t ciphertext_size, + size_t *ciphertext_length); + +/** Process an authenticated decryption operation. + * + * \param key Identifier of the key to use for the + * operation. It must allow the usage + * #PSA_KEY_USAGE_DECRYPT. + * \param alg The AEAD algorithm to compute + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(\p alg) is true). + * \param[in] nonce Nonce or IV to use. + * \param nonce_length Size of the \p nonce buffer in bytes. + * \param[in] additional_data Additional data that has been authenticated + * but not encrypted. + * \param additional_data_length Size of \p additional_data in bytes. + * \param[in] ciphertext Data that has been authenticated and + * encrypted. For algorithms where the + * encrypted data and the authentication tag + * are defined as separate inputs, the buffer + * must contain the encrypted data followed + * by the authentication tag. + * \param ciphertext_length Size of \p ciphertext in bytes. + * \param[out] plaintext Output buffer for the decrypted data. + * \param plaintext_size Size of the \p plaintext buffer in bytes. + * This must be appropriate for the selected + * algorithm and key: + * - A sufficient output size is + * #PSA_AEAD_DECRYPT_OUTPUT_SIZE(\c key_type, + * \p alg, \p ciphertext_length) where + * \c key_type is the type of \p key. + * - #PSA_AEAD_DECRYPT_OUTPUT_MAX_SIZE(\p + * ciphertext_length) evaluates to the maximum + * plaintext size of any supported AEAD + * decryption. + * \param[out] plaintext_length On success, the size of the output + * in the \p plaintext buffer. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The ciphertext is not authentic. + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p key is not compatible with \p alg. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not supported or is not an AEAD algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * \p plaintext_size is too small. + * #PSA_AEAD_DECRYPT_OUTPUT_SIZE(\c key_type, \p alg, + * \p ciphertext_length) or + * #PSA_AEAD_DECRYPT_OUTPUT_MAX_SIZE(\p ciphertext_length) can be used + * to determine the required buffer size. + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_aead_decrypt(mbedtls_svc_key_id_t key, + psa_algorithm_t alg, + const uint8_t *nonce, + size_t nonce_length, + const uint8_t *additional_data, + size_t additional_data_length, + const uint8_t *ciphertext, + size_t ciphertext_length, + uint8_t *plaintext, + size_t plaintext_size, + size_t *plaintext_length); + +/** The type of the state data structure for multipart AEAD operations. + * + * Before calling any function on an AEAD operation object, the application + * must initialize it by any of the following means: + * - Set the structure to all-bits-zero, for example: + * \code + * psa_aead_operation_t operation; + * memset(&operation, 0, sizeof(operation)); + * \endcode + * - Initialize the structure to logical zero values, for example: + * \code + * psa_aead_operation_t operation = {0}; + * \endcode + * - Initialize the structure to the initializer #PSA_AEAD_OPERATION_INIT, + * for example: + * \code + * psa_aead_operation_t operation = PSA_AEAD_OPERATION_INIT; + * \endcode + * - Assign the result of the function psa_aead_operation_init() + * to the structure, for example: + * \code + * psa_aead_operation_t operation; + * operation = psa_aead_operation_init(); + * \endcode + * + * This is an implementation-defined \c struct. Applications should not + * make any assumptions about the content of this structure. + * Implementation details can change in future versions without notice. */ +typedef struct psa_aead_operation_s psa_aead_operation_t; + +/** \def PSA_AEAD_OPERATION_INIT + * + * This macro returns a suitable initializer for an AEAD operation object of + * type #psa_aead_operation_t. + */ + +/** Return an initial value for an AEAD operation object. + */ +static psa_aead_operation_t psa_aead_operation_init(void); + +/** Set the key for a multipart authenticated encryption operation. + * + * The sequence of operations to encrypt a message with authentication + * is as follows: + * -# Allocate an operation object which will be passed to all the functions + * listed here. + * -# Initialize the operation object with one of the methods described in the + * documentation for #psa_aead_operation_t, e.g. + * #PSA_AEAD_OPERATION_INIT. + * -# Call psa_aead_encrypt_setup() to specify the algorithm and key. + * -# If needed, call psa_aead_set_lengths() to specify the length of the + * inputs to the subsequent calls to psa_aead_update_ad() and + * psa_aead_update(). See the documentation of psa_aead_set_lengths() + * for details. + * -# Call either psa_aead_generate_nonce() or psa_aead_set_nonce() to + * generate or set the nonce. You should use + * psa_aead_generate_nonce() unless the protocol you are implementing + * requires a specific nonce value. + * -# Call psa_aead_update_ad() zero, one or more times, passing a fragment + * of the non-encrypted additional authenticated data each time. + * -# Call psa_aead_update() zero, one or more times, passing a fragment + * of the message to encrypt each time. + * -# Call psa_aead_finish(). + * + * If an error occurs at any step after a call to psa_aead_encrypt_setup(), + * the operation will need to be reset by a call to psa_aead_abort(). The + * application may call psa_aead_abort() at any time after the operation + * has been initialized. + * + * After a successful call to psa_aead_encrypt_setup(), the application must + * eventually terminate the operation. The following events terminate an + * operation: + * - A successful call to psa_aead_finish(). + * - A call to psa_aead_abort(). + * + * \param[in,out] operation The operation object to set up. It must have + * been initialized as per the documentation for + * #psa_aead_operation_t and not yet in use. + * \param key Identifier of the key to use for the operation. + * It must remain valid until the operation + * terminates. It must allow the usage + * #PSA_KEY_USAGE_ENCRYPT. + * \param alg The AEAD algorithm to compute + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(\p alg) is true). + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be inactive), or + * the library has not been previously initialized by psa_crypto_init(). + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p key is not compatible with \p alg. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not supported or is not an AEAD algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_aead_encrypt_setup(psa_aead_operation_t *operation, + mbedtls_svc_key_id_t key, + psa_algorithm_t alg); + +/** Set the key for a multipart authenticated decryption operation. + * + * The sequence of operations to decrypt a message with authentication + * is as follows: + * -# Allocate an operation object which will be passed to all the functions + * listed here. + * -# Initialize the operation object with one of the methods described in the + * documentation for #psa_aead_operation_t, e.g. + * #PSA_AEAD_OPERATION_INIT. + * -# Call psa_aead_decrypt_setup() to specify the algorithm and key. + * -# If needed, call psa_aead_set_lengths() to specify the length of the + * inputs to the subsequent calls to psa_aead_update_ad() and + * psa_aead_update(). See the documentation of psa_aead_set_lengths() + * for details. + * -# Call psa_aead_set_nonce() with the nonce for the decryption. + * -# Call psa_aead_update_ad() zero, one or more times, passing a fragment + * of the non-encrypted additional authenticated data each time. + * -# Call psa_aead_update() zero, one or more times, passing a fragment + * of the ciphertext to decrypt each time. + * -# Call psa_aead_verify(). + * + * If an error occurs at any step after a call to psa_aead_decrypt_setup(), + * the operation will need to be reset by a call to psa_aead_abort(). The + * application may call psa_aead_abort() at any time after the operation + * has been initialized. + * + * After a successful call to psa_aead_decrypt_setup(), the application must + * eventually terminate the operation. The following events terminate an + * operation: + * - A successful call to psa_aead_verify(). + * - A call to psa_aead_abort(). + * + * \param[in,out] operation The operation object to set up. It must have + * been initialized as per the documentation for + * #psa_aead_operation_t and not yet in use. + * \param key Identifier of the key to use for the operation. + * It must remain valid until the operation + * terminates. It must allow the usage + * #PSA_KEY_USAGE_DECRYPT. + * \param alg The AEAD algorithm to compute + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(\p alg) is true). + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p key is not compatible with \p alg. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not supported or is not an AEAD algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be inactive), or the + * library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_aead_decrypt_setup(psa_aead_operation_t *operation, + mbedtls_svc_key_id_t key, + psa_algorithm_t alg); + +/** Generate a random nonce for an authenticated encryption operation. + * + * This function generates a random nonce for the authenticated encryption + * operation with an appropriate size for the chosen algorithm, key type + * and key size. + * + * The application must call psa_aead_encrypt_setup() before + * calling this function. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_aead_abort(). + * + * \param[in,out] operation Active AEAD operation. + * \param[out] nonce Buffer where the generated nonce is to be + * written. + * \param nonce_size Size of the \p nonce buffer in bytes. + * \param[out] nonce_length On success, the number of bytes of the + * generated nonce. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p nonce buffer is too small. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be an active aead encrypt + * operation, with no nonce set), or the library has not been + * previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_aead_generate_nonce(psa_aead_operation_t *operation, + uint8_t *nonce, + size_t nonce_size, + size_t *nonce_length); + +/** Set the nonce for an authenticated encryption or decryption operation. + * + * This function sets the nonce for the authenticated + * encryption or decryption operation. + * + * The application must call psa_aead_encrypt_setup() or + * psa_aead_decrypt_setup() before calling this function. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_aead_abort(). + * + * \note When encrypting, applications should use psa_aead_generate_nonce() + * instead of this function, unless implementing a protocol that requires + * a non-random IV. + * + * \param[in,out] operation Active AEAD operation. + * \param[in] nonce Buffer containing the nonce to use. + * \param nonce_length Size of the nonce in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The size of \p nonce is not acceptable for the chosen algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active, with no nonce + * set), or the library has not been previously initialized + * by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_aead_set_nonce(psa_aead_operation_t *operation, + const uint8_t *nonce, + size_t nonce_length); + +/** Declare the lengths of the message and additional data for AEAD. + * + * The application must call this function before calling + * psa_aead_update_ad() or psa_aead_update() if the algorithm for + * the operation requires it. If the algorithm does not require it, + * calling this function is optional, but if this function is called + * then the implementation must enforce the lengths. + * + * You may call this function before or after setting the nonce with + * psa_aead_set_nonce() or psa_aead_generate_nonce(). + * + * - For #PSA_ALG_CCM, calling this function is required. + * - For the other AEAD algorithms defined in this specification, calling + * this function is not required. + * - For vendor-defined algorithm, refer to the vendor documentation. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_aead_abort(). + * + * \param[in,out] operation Active AEAD operation. + * \param ad_length Size of the non-encrypted additional + * authenticated data in bytes. + * \param plaintext_length Size of the plaintext to encrypt in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * At least one of the lengths is not acceptable for the chosen + * algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active, and + * psa_aead_update_ad() and psa_aead_update() must not have been + * called yet), or the library has not been previously initialized + * by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_aead_set_lengths(psa_aead_operation_t *operation, + size_t ad_length, + size_t plaintext_length); + +/** Pass additional data to an active AEAD operation. + * + * Additional data is authenticated, but not encrypted. + * + * You may call this function multiple times to pass successive fragments + * of the additional data. You may not call this function after passing + * data to encrypt or decrypt with psa_aead_update(). + * + * Before calling this function, you must: + * 1. Call either psa_aead_encrypt_setup() or psa_aead_decrypt_setup(). + * 2. Set the nonce with psa_aead_generate_nonce() or psa_aead_set_nonce(). + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_aead_abort(). + * + * \warning When decrypting, until psa_aead_verify() has returned #PSA_SUCCESS, + * there is no guarantee that the input is valid. Therefore, until + * you have called psa_aead_verify() and it has returned #PSA_SUCCESS, + * treat the input as untrusted and prepare to undo any action that + * depends on the input if psa_aead_verify() returns an error status. + * + * \param[in,out] operation Active AEAD operation. + * \param[in] input Buffer containing the fragment of + * additional data. + * \param input_length Size of the \p input buffer in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The total input length overflows the additional data length that + * was previously specified with psa_aead_set_lengths(). + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active, have a nonce + * set, have lengths set if required by the algorithm, and + * psa_aead_update() must not have been called yet), or the library + * has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_aead_update_ad(psa_aead_operation_t *operation, + const uint8_t *input, + size_t input_length); + +/** Encrypt or decrypt a message fragment in an active AEAD operation. + * + * Before calling this function, you must: + * 1. Call either psa_aead_encrypt_setup() or psa_aead_decrypt_setup(). + * The choice of setup function determines whether this function + * encrypts or decrypts its input. + * 2. Set the nonce with psa_aead_generate_nonce() or psa_aead_set_nonce(). + * 3. Call psa_aead_update_ad() to pass all the additional data. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_aead_abort(). + * + * \warning When decrypting, until psa_aead_verify() has returned #PSA_SUCCESS, + * there is no guarantee that the input is valid. Therefore, until + * you have called psa_aead_verify() and it has returned #PSA_SUCCESS: + * - Do not use the output in any way other than storing it in a + * confidential location. If you take any action that depends + * on the tentative decrypted data, this action will need to be + * undone if the input turns out not to be valid. Furthermore, + * if an adversary can observe that this action took place + * (for example through timing), they may be able to use this + * fact as an oracle to decrypt any message encrypted with the + * same key. + * - In particular, do not copy the output anywhere but to a + * memory or storage space that you have exclusive access to. + * + * This function does not require the input to be aligned to any + * particular block boundary. If the implementation can only process + * a whole block at a time, it must consume all the input provided, but + * it may delay the end of the corresponding output until a subsequent + * call to psa_aead_update(), psa_aead_finish() or psa_aead_verify() + * provides sufficient input. The amount of data that can be delayed + * in this way is bounded by #PSA_AEAD_UPDATE_OUTPUT_SIZE. + * + * \param[in,out] operation Active AEAD operation. + * \param[in] input Buffer containing the message fragment to + * encrypt or decrypt. + * \param input_length Size of the \p input buffer in bytes. + * \param[out] output Buffer where the output is to be written. + * \param output_size Size of the \p output buffer in bytes. + * This must be appropriate for the selected + * algorithm and key: + * - A sufficient output size is + * #PSA_AEAD_UPDATE_OUTPUT_SIZE(\c key_type, + * \c alg, \p input_length) where + * \c key_type is the type of key and \c alg is + * the algorithm that were used to set up the + * operation. + * - #PSA_AEAD_UPDATE_OUTPUT_MAX_SIZE(\p + * input_length) evaluates to the maximum + * output size of any supported AEAD + * algorithm. + * \param[out] output_length On success, the number of bytes + * that make up the returned output. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p output buffer is too small. + * #PSA_AEAD_UPDATE_OUTPUT_SIZE(\c key_type, \c alg, \p input_length) or + * #PSA_AEAD_UPDATE_OUTPUT_MAX_SIZE(\p input_length) can be used to + * determine the required buffer size. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The total length of input to psa_aead_update_ad() so far is + * less than the additional data length that was previously + * specified with psa_aead_set_lengths(), or + * the total input length overflows the plaintext length that + * was previously specified with psa_aead_set_lengths(). + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active, have a nonce + * set, and have lengths set if required by the algorithm), or the + * library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_aead_update(psa_aead_operation_t *operation, + const uint8_t *input, + size_t input_length, + uint8_t *output, + size_t output_size, + size_t *output_length); + +/** Finish encrypting a message in an AEAD operation. + * + * The operation must have been set up with psa_aead_encrypt_setup(). + * + * This function finishes the authentication of the additional data + * formed by concatenating the inputs passed to preceding calls to + * psa_aead_update_ad() with the plaintext formed by concatenating the + * inputs passed to preceding calls to psa_aead_update(). + * + * This function has two output buffers: + * - \p ciphertext contains trailing ciphertext that was buffered from + * preceding calls to psa_aead_update(). + * - \p tag contains the authentication tag. + * + * When this function returns successfully, the operation becomes inactive. + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_aead_abort(). + * + * \param[in,out] operation Active AEAD operation. + * \param[out] ciphertext Buffer where the last part of the ciphertext + * is to be written. + * \param ciphertext_size Size of the \p ciphertext buffer in bytes. + * This must be appropriate for the selected + * algorithm and key: + * - A sufficient output size is + * #PSA_AEAD_FINISH_OUTPUT_SIZE(\c key_type, + * \c alg) where \c key_type is the type of key + * and \c alg is the algorithm that were used to + * set up the operation. + * - #PSA_AEAD_FINISH_OUTPUT_MAX_SIZE evaluates to + * the maximum output size of any supported AEAD + * algorithm. + * \param[out] ciphertext_length On success, the number of bytes of + * returned ciphertext. + * \param[out] tag Buffer where the authentication tag is + * to be written. + * \param tag_size Size of the \p tag buffer in bytes. + * This must be appropriate for the selected + * algorithm and key: + * - The exact tag size is #PSA_AEAD_TAG_LENGTH(\c + * key_type, \c key_bits, \c alg) where + * \c key_type and \c key_bits are the type and + * bit-size of the key, and \c alg is the + * algorithm that were used in the call to + * psa_aead_encrypt_setup(). + * - #PSA_AEAD_TAG_MAX_SIZE evaluates to the + * maximum tag size of any supported AEAD + * algorithm. + * \param[out] tag_length On success, the number of bytes + * that make up the returned tag. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p ciphertext or \p tag buffer is too small. + * #PSA_AEAD_FINISH_OUTPUT_SIZE(\c key_type, \c alg) or + * #PSA_AEAD_FINISH_OUTPUT_MAX_SIZE can be used to determine the + * required \p ciphertext buffer size. #PSA_AEAD_TAG_LENGTH(\c key_type, + * \c key_bits, \c alg) or #PSA_AEAD_TAG_MAX_SIZE can be used to + * determine the required \p tag buffer size. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The total length of input to psa_aead_update_ad() so far is + * less than the additional data length that was previously + * specified with psa_aead_set_lengths(), or + * the total length of input to psa_aead_update() so far is + * less than the plaintext length that was previously + * specified with psa_aead_set_lengths(). + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be an active encryption + * operation with a nonce set), or the library has not been previously + * initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_aead_finish(psa_aead_operation_t *operation, + uint8_t *ciphertext, + size_t ciphertext_size, + size_t *ciphertext_length, + uint8_t *tag, + size_t tag_size, + size_t *tag_length); + +/** Finish authenticating and decrypting a message in an AEAD operation. + * + * The operation must have been set up with psa_aead_decrypt_setup(). + * + * This function finishes the authenticated decryption of the message + * components: + * + * - The additional data consisting of the concatenation of the inputs + * passed to preceding calls to psa_aead_update_ad(). + * - The ciphertext consisting of the concatenation of the inputs passed to + * preceding calls to psa_aead_update(). + * - The tag passed to this function call. + * + * If the authentication tag is correct, this function outputs any remaining + * plaintext and reports success. If the authentication tag is not correct, + * this function returns #PSA_ERROR_INVALID_SIGNATURE. + * + * When this function returns successfully, the operation becomes inactive. + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_aead_abort(). + * + * \note Implementations shall make the best effort to ensure that the + * comparison between the actual tag and the expected tag is performed + * in constant time. + * + * \param[in,out] operation Active AEAD operation. + * \param[out] plaintext Buffer where the last part of the plaintext + * is to be written. This is the remaining data + * from previous calls to psa_aead_update() + * that could not be processed until the end + * of the input. + * \param plaintext_size Size of the \p plaintext buffer in bytes. + * This must be appropriate for the selected algorithm and key: + * - A sufficient output size is + * #PSA_AEAD_VERIFY_OUTPUT_SIZE(\c key_type, + * \c alg) where \c key_type is the type of key + * and \c alg is the algorithm that were used to + * set up the operation. + * - #PSA_AEAD_VERIFY_OUTPUT_MAX_SIZE evaluates to + * the maximum output size of any supported AEAD + * algorithm. + * \param[out] plaintext_length On success, the number of bytes of + * returned plaintext. + * \param[in] tag Buffer containing the authentication tag. + * \param tag_length Size of the \p tag buffer in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The calculations were successful, but the authentication tag is + * not correct. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p plaintext buffer is too small. + * #PSA_AEAD_VERIFY_OUTPUT_SIZE(\c key_type, \c alg) or + * #PSA_AEAD_VERIFY_OUTPUT_MAX_SIZE can be used to determine the + * required buffer size. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The total length of input to psa_aead_update_ad() so far is + * less than the additional data length that was previously + * specified with psa_aead_set_lengths(), or + * the total length of input to psa_aead_update() so far is + * less than the plaintext length that was previously + * specified with psa_aead_set_lengths(). + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be an active decryption + * operation with a nonce set), or the library has not been previously + * initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_aead_verify(psa_aead_operation_t *operation, + uint8_t *plaintext, + size_t plaintext_size, + size_t *plaintext_length, + const uint8_t *tag, + size_t tag_length); + +/** Abort an AEAD operation. + * + * Aborting an operation frees all associated resources except for the + * \p operation structure itself. Once aborted, the operation object + * can be reused for another operation by calling + * psa_aead_encrypt_setup() or psa_aead_decrypt_setup() again. + * + * You may call this function any time after the operation object has + * been initialized as described in #psa_aead_operation_t. + * + * In particular, calling psa_aead_abort() after the operation has been + * terminated by a call to psa_aead_abort(), psa_aead_finish() or + * psa_aead_verify() is safe and has no effect. + * + * \param[in,out] operation Initialized AEAD operation. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_aead_abort(psa_aead_operation_t *operation); + +/**@}*/ + +/** \defgroup asymmetric Asymmetric cryptography + * @{ + */ + +/** + * \brief Sign a message with a private key. For hash-and-sign algorithms, + * this includes the hashing step. + * + * \note To perform a multi-part hash-and-sign signature algorithm, first use + * a multi-part hash operation and then pass the resulting hash to + * psa_sign_hash(). PSA_ALG_GET_HASH(\p alg) can be used to determine the + * hash algorithm to use. + * + * \param[in] key Identifier of the key to use for the operation. + * It must be an asymmetric key pair. The key must + * allow the usage #PSA_KEY_USAGE_SIGN_MESSAGE. + * \param[in] alg An asymmetric signature algorithm (PSA_ALG_XXX + * value such that #PSA_ALG_IS_SIGN_MESSAGE(\p alg) + * is true), that is compatible with the type of + * \p key. + * \param[in] input The input message to sign. + * \param[in] input_length Size of the \p input buffer in bytes. + * \param[out] signature Buffer where the signature is to be written. + * \param[in] signature_size Size of the \p signature buffer in bytes. This + * must be appropriate for the selected + * algorithm and key: + * - The required signature size is + * #PSA_SIGN_OUTPUT_SIZE(\c key_type, \c key_bits, \p alg) + * where \c key_type and \c key_bits are the type and + * bit-size respectively of key. + * - #PSA_SIGNATURE_MAX_SIZE evaluates to the + * maximum signature size of any supported + * signature algorithm. + * \param[out] signature_length On success, the number of bytes that make up + * the returned signature value. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED + * The key does not have the #PSA_KEY_USAGE_SIGN_MESSAGE flag, + * or it does not permit the requested algorithm. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p signature buffer is too small. You can + * determine a sufficient buffer size by calling + * #PSA_SIGN_OUTPUT_SIZE(\c key_type, \c key_bits, \p alg) + * where \c key_type and \c key_bits are the type and bit-size + * respectively of \p key. + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_sign_message(mbedtls_svc_key_id_t key, + psa_algorithm_t alg, + const uint8_t *input, + size_t input_length, + uint8_t *signature, + size_t signature_size, + size_t *signature_length); + +/** \brief Verify the signature of a message with a public key, using + * a hash-and-sign verification algorithm. + * + * \note To perform a multi-part hash-and-sign signature verification + * algorithm, first use a multi-part hash operation to hash the message + * and then pass the resulting hash to psa_verify_hash(). + * PSA_ALG_GET_HASH(\p alg) can be used to determine the hash algorithm + * to use. + * + * \param[in] key Identifier of the key to use for the operation. + * It must be a public key or an asymmetric key + * pair. The key must allow the usage + * #PSA_KEY_USAGE_VERIFY_MESSAGE. + * \param[in] alg An asymmetric signature algorithm (PSA_ALG_XXX + * value such that #PSA_ALG_IS_SIGN_MESSAGE(\p alg) + * is true), that is compatible with the type of + * \p key. + * \param[in] input The message whose signature is to be verified. + * \param[in] input_length Size of the \p input buffer in bytes. + * \param[out] signature Buffer containing the signature to verify. + * \param[in] signature_length Size of the \p signature buffer in bytes. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED + * The key does not have the #PSA_KEY_USAGE_SIGN_MESSAGE flag, + * or it does not permit the requested algorithm. + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The calculation was performed successfully, but the passed signature + * is not a valid signature. + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_verify_message(mbedtls_svc_key_id_t key, + psa_algorithm_t alg, + const uint8_t *input, + size_t input_length, + const uint8_t *signature, + size_t signature_length); + +/** + * \brief Sign a hash or short message with a private key. + * + * Note that to perform a hash-and-sign signature algorithm, you must + * first calculate the hash by calling psa_hash_setup(), psa_hash_update() + * and psa_hash_finish(), or alternatively by calling psa_hash_compute(). + * Then pass the resulting hash as the \p hash + * parameter to this function. You can use #PSA_ALG_SIGN_GET_HASH(\p alg) + * to determine the hash algorithm to use. + * + * \param key Identifier of the key to use for the operation. + * It must be an asymmetric key pair. The key must + * allow the usage #PSA_KEY_USAGE_SIGN_HASH. + * \param alg A signature algorithm (PSA_ALG_XXX + * value such that #PSA_ALG_IS_SIGN_HASH(\p alg) + * is true), that is compatible with + * the type of \p key. + * \param[in] hash The hash or message to sign. + * \param hash_length Size of the \p hash buffer in bytes. + * \param[out] signature Buffer where the signature is to be written. + * \param signature_size Size of the \p signature buffer in bytes. + * \param[out] signature_length On success, the number of bytes + * that make up the returned signature value. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p signature buffer is too small. You can + * determine a sufficient buffer size by calling + * #PSA_SIGN_OUTPUT_SIZE(\c key_type, \c key_bits, \p alg) + * where \c key_type and \c key_bits are the type and bit-size + * respectively of \p key. + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_sign_hash(mbedtls_svc_key_id_t key, + psa_algorithm_t alg, + const uint8_t *hash, + size_t hash_length, + uint8_t *signature, + size_t signature_size, + size_t *signature_length); + +/** + * \brief Verify the signature of a hash or short message using a public key. + * + * Note that to perform a hash-and-sign signature algorithm, you must + * first calculate the hash by calling psa_hash_setup(), psa_hash_update() + * and psa_hash_finish(), or alternatively by calling psa_hash_compute(). + * Then pass the resulting hash as the \p hash + * parameter to this function. You can use #PSA_ALG_SIGN_GET_HASH(\p alg) + * to determine the hash algorithm to use. + * + * \param key Identifier of the key to use for the operation. It + * must be a public key or an asymmetric key pair. The + * key must allow the usage + * #PSA_KEY_USAGE_VERIFY_HASH. + * \param alg A signature algorithm (PSA_ALG_XXX + * value such that #PSA_ALG_IS_SIGN_HASH(\p alg) + * is true), that is compatible with + * the type of \p key. + * \param[in] hash The hash or message whose signature is to be + * verified. + * \param hash_length Size of the \p hash buffer in bytes. + * \param[in] signature Buffer containing the signature to verify. + * \param signature_length Size of the \p signature buffer in bytes. + * + * \retval #PSA_SUCCESS + * The signature is valid. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The calculation was performed successfully, but the passed + * signature is not a valid signature. + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_verify_hash(mbedtls_svc_key_id_t key, + psa_algorithm_t alg, + const uint8_t *hash, + size_t hash_length, + const uint8_t *signature, + size_t signature_length); + +/** + * \brief Encrypt a short message with a public key. + * + * \param key Identifier of the key to use for the operation. + * It must be a public key or an asymmetric key + * pair. It must allow the usage + * #PSA_KEY_USAGE_ENCRYPT. + * \param alg An asymmetric encryption algorithm that is + * compatible with the type of \p key. + * \param[in] input The message to encrypt. + * \param input_length Size of the \p input buffer in bytes. + * \param[in] salt A salt or label, if supported by the + * encryption algorithm. + * If the algorithm does not support a + * salt, pass \c NULL. + * If the algorithm supports an optional + * salt and you do not want to pass a salt, + * pass \c NULL. + * + * - For #PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is + * supported. + * \param salt_length Size of the \p salt buffer in bytes. + * If \p salt is \c NULL, pass 0. + * \param[out] output Buffer where the encrypted message is to + * be written. + * \param output_size Size of the \p output buffer in bytes. + * \param[out] output_length On success, the number of bytes + * that make up the returned output. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p output buffer is too small. You can + * determine a sufficient buffer size by calling + * #PSA_ASYMMETRIC_ENCRYPT_OUTPUT_SIZE(\c key_type, \c key_bits, \p alg) + * where \c key_type and \c key_bits are the type and bit-size + * respectively of \p key. + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_asymmetric_encrypt(mbedtls_svc_key_id_t key, + psa_algorithm_t alg, + const uint8_t *input, + size_t input_length, + const uint8_t *salt, + size_t salt_length, + uint8_t *output, + size_t output_size, + size_t *output_length); + +/** + * \brief Decrypt a short message with a private key. + * + * \param key Identifier of the key to use for the operation. + * It must be an asymmetric key pair. It must + * allow the usage #PSA_KEY_USAGE_DECRYPT. + * \param alg An asymmetric encryption algorithm that is + * compatible with the type of \p key. + * \param[in] input The message to decrypt. + * \param input_length Size of the \p input buffer in bytes. + * \param[in] salt A salt or label, if supported by the + * encryption algorithm. + * If the algorithm does not support a + * salt, pass \c NULL. + * If the algorithm supports an optional + * salt and you do not want to pass a salt, + * pass \c NULL. + * + * - For #PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is + * supported. + * \param salt_length Size of the \p salt buffer in bytes. + * If \p salt is \c NULL, pass 0. + * \param[out] output Buffer where the decrypted message is to + * be written. + * \param output_size Size of the \c output buffer in bytes. + * \param[out] output_length On success, the number of bytes + * that make up the returned output. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p output buffer is too small. You can + * determine a sufficient buffer size by calling + * #PSA_ASYMMETRIC_DECRYPT_OUTPUT_SIZE(\c key_type, \c key_bits, \p alg) + * where \c key_type and \c key_bits are the type and bit-size + * respectively of \p key. + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription + * \retval #PSA_ERROR_INVALID_PADDING \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_asymmetric_decrypt(mbedtls_svc_key_id_t key, + psa_algorithm_t alg, + const uint8_t *input, + size_t input_length, + const uint8_t *salt, + size_t salt_length, + uint8_t *output, + size_t output_size, + size_t *output_length); + +/**@}*/ + +/** \defgroup key_derivation Key derivation and pseudorandom generation + * @{ + */ + +/** The type of the state data structure for key derivation operations. + * + * Before calling any function on a key derivation operation object, the + * application must initialize it by any of the following means: + * - Set the structure to all-bits-zero, for example: + * \code + * psa_key_derivation_operation_t operation; + * memset(&operation, 0, sizeof(operation)); + * \endcode + * - Initialize the structure to logical zero values, for example: + * \code + * psa_key_derivation_operation_t operation = {0}; + * \endcode + * - Initialize the structure to the initializer #PSA_KEY_DERIVATION_OPERATION_INIT, + * for example: + * \code + * psa_key_derivation_operation_t operation = PSA_KEY_DERIVATION_OPERATION_INIT; + * \endcode + * - Assign the result of the function psa_key_derivation_operation_init() + * to the structure, for example: + * \code + * psa_key_derivation_operation_t operation; + * operation = psa_key_derivation_operation_init(); + * \endcode + * + * This is an implementation-defined \c struct. Applications should not + * make any assumptions about the content of this structure. + * Implementation details can change in future versions without notice. + */ +typedef struct psa_key_derivation_s psa_key_derivation_operation_t; + +/** \def PSA_KEY_DERIVATION_OPERATION_INIT + * + * This macro returns a suitable initializer for a key derivation operation + * object of type #psa_key_derivation_operation_t. + */ + +/** Return an initial value for a key derivation operation object. + */ +static psa_key_derivation_operation_t psa_key_derivation_operation_init(void); + +/** Set up a key derivation operation. + * + * A key derivation algorithm takes some inputs and uses them to generate + * a byte stream in a deterministic way. + * This byte stream can be used to produce keys and other + * cryptographic material. + * + * To derive a key: + * -# Start with an initialized object of type #psa_key_derivation_operation_t. + * -# Call psa_key_derivation_setup() to select the algorithm. + * -# Provide the inputs for the key derivation by calling + * psa_key_derivation_input_bytes() or psa_key_derivation_input_key() + * as appropriate. Which inputs are needed, in what order, and whether + * they may be keys and if so of what type depends on the algorithm. + * -# Optionally set the operation's maximum capacity with + * psa_key_derivation_set_capacity(). You may do this before, in the middle + * of or after providing inputs. For some algorithms, this step is mandatory + * because the output depends on the maximum capacity. + * -# To derive a key, call psa_key_derivation_output_key(). + * To derive a byte string for a different purpose, call + * psa_key_derivation_output_bytes(). + * Successive calls to these functions use successive output bytes + * calculated by the key derivation algorithm. + * -# Clean up the key derivation operation object with + * psa_key_derivation_abort(). + * + * If this function returns an error, the key derivation operation object is + * not changed. + * + * If an error occurs at any step after a call to psa_key_derivation_setup(), + * the operation will need to be reset by a call to psa_key_derivation_abort(). + * + * Implementations must reject an attempt to derive a key of size 0. + * + * \param[in,out] operation The key derivation operation object + * to set up. It must + * have been initialized but not set up yet. + * \param alg The key derivation algorithm to compute + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_KEY_DERIVATION(\p alg) is true). + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \c alg is not a key derivation algorithm. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \c alg is not supported or is not a key derivation algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be inactive), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_key_derivation_setup( + psa_key_derivation_operation_t *operation, + psa_algorithm_t alg); + +/** Retrieve the current capacity of a key derivation operation. + * + * The capacity of a key derivation is the maximum number of bytes that it can + * return. When you get *N* bytes of output from a key derivation operation, + * this reduces its capacity by *N*. + * + * \param[in] operation The operation to query. + * \param[out] capacity On success, the capacity of the operation. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_key_derivation_get_capacity( + const psa_key_derivation_operation_t *operation, + size_t *capacity); + +/** Set the maximum capacity of a key derivation operation. + * + * The capacity of a key derivation operation is the maximum number of bytes + * that the key derivation operation can return from this point onwards. + * + * \param[in,out] operation The key derivation operation object to modify. + * \param capacity The new capacity of the operation. + * It must be less or equal to the operation's + * current capacity. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p capacity is larger than the operation's current capacity. + * In this case, the operation object remains valid and its capacity + * remains unchanged. + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active), or the + * library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_key_derivation_set_capacity( + psa_key_derivation_operation_t *operation, + size_t capacity); + +/** Use the maximum possible capacity for a key derivation operation. + * + * Use this value as the capacity argument when setting up a key derivation + * to indicate that the operation should have the maximum possible capacity. + * The value of the maximum possible capacity depends on the key derivation + * algorithm. + */ +#define PSA_KEY_DERIVATION_UNLIMITED_CAPACITY ((size_t) (-1)) + +/** Provide an input for key derivation or key agreement. + * + * Which inputs are required and in what order depends on the algorithm. + * Refer to the documentation of each key derivation or key agreement + * algorithm for information. + * + * This function passes direct inputs, which is usually correct for + * non-secret inputs. To pass a secret input, which should be in a key + * object, call psa_key_derivation_input_key() instead of this function. + * Refer to the documentation of individual step types + * (`PSA_KEY_DERIVATION_INPUT_xxx` values of type ::psa_key_derivation_step_t) + * for more information. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_key_derivation_abort(). + * + * \param[in,out] operation The key derivation operation object to use. + * It must have been set up with + * psa_key_derivation_setup() and must not + * have produced any output yet. + * \param step Which step the input data is for. + * \param[in] data Input data to use. + * \param data_length Size of the \p data buffer in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \c step is not compatible with the operation's algorithm, or + * \c step does not allow direct inputs. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid for this input \p step, or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_key_derivation_input_bytes( + psa_key_derivation_operation_t *operation, + psa_key_derivation_step_t step, + const uint8_t *data, + size_t data_length); + +/** Provide a numeric input for key derivation or key agreement. + * + * Which inputs are required and in what order depends on the algorithm. + * However, when an algorithm requires a particular order, numeric inputs + * usually come first as they tend to be configuration parameters. + * Refer to the documentation of each key derivation or key agreement + * algorithm for information. + * + * This function is used for inputs which are fixed-size non-negative + * integers. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_key_derivation_abort(). + * + * \param[in,out] operation The key derivation operation object to use. + * It must have been set up with + * psa_key_derivation_setup() and must not + * have produced any output yet. + * \param step Which step the input data is for. + * \param[in] value The value of the numeric input. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \c step is not compatible with the operation's algorithm, or + * \c step does not allow numeric inputs. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid for this input \p step, or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_key_derivation_input_integer( + psa_key_derivation_operation_t *operation, + psa_key_derivation_step_t step, + uint64_t value); + +/** Provide an input for key derivation in the form of a key. + * + * Which inputs are required and in what order depends on the algorithm. + * Refer to the documentation of each key derivation or key agreement + * algorithm for information. + * + * This function obtains input from a key object, which is usually correct for + * secret inputs or for non-secret personalization strings kept in the key + * store. To pass a non-secret parameter which is not in the key store, + * call psa_key_derivation_input_bytes() instead of this function. + * Refer to the documentation of individual step types + * (`PSA_KEY_DERIVATION_INPUT_xxx` values of type ::psa_key_derivation_step_t) + * for more information. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_key_derivation_abort(). + * + * \param[in,out] operation The key derivation operation object to use. + * It must have been set up with + * psa_key_derivation_setup() and must not + * have produced any output yet. + * \param step Which step the input data is for. + * \param key Identifier of the key. It must have an + * appropriate type for step and must allow the + * usage #PSA_KEY_USAGE_DERIVE or + * #PSA_KEY_USAGE_VERIFY_DERIVATION (see note) + * and the algorithm used by the operation. + * + * \note Once all inputs steps are completed, the operations will allow: + * - psa_key_derivation_output_bytes() if each input was either a direct input + * or a key with #PSA_KEY_USAGE_DERIVE set; + * - psa_key_derivation_output_key() if the input for step + * #PSA_KEY_DERIVATION_INPUT_SECRET or #PSA_KEY_DERIVATION_INPUT_PASSWORD + * was from a key slot with #PSA_KEY_USAGE_DERIVE and each other input was + * either a direct input or a key with #PSA_KEY_USAGE_DERIVE set; + * - psa_key_derivation_verify_bytes() if each input was either a direct input + * or a key with #PSA_KEY_USAGE_VERIFY_DERIVATION set; + * - psa_key_derivation_verify_key() under the same conditions as + * psa_key_derivation_verify_bytes(). + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED + * The key allows neither #PSA_KEY_USAGE_DERIVE nor + * #PSA_KEY_USAGE_VERIFY_DERIVATION, or it doesn't allow this + * algorithm. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \c step is not compatible with the operation's algorithm, or + * \c step does not allow key inputs of the given type + * or does not allow key inputs at all. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid for this input \p step, or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_key_derivation_input_key( + psa_key_derivation_operation_t *operation, + psa_key_derivation_step_t step, + mbedtls_svc_key_id_t key); + +/** Perform a key agreement and use the shared secret as input to a key + * derivation. + * + * A key agreement algorithm takes two inputs: a private key \p private_key + * a public key \p peer_key. + * The result of this function is passed as input to a key derivation. + * The output of this key derivation can be extracted by reading from the + * resulting operation to produce keys and other cryptographic material. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_key_derivation_abort(). + * + * \param[in,out] operation The key derivation operation object to use. + * It must have been set up with + * psa_key_derivation_setup() with a + * key agreement and derivation algorithm + * \c alg (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_KEY_AGREEMENT(\c alg) is true + * and #PSA_ALG_IS_RAW_KEY_AGREEMENT(\c alg) + * is false). + * The operation must be ready for an + * input of the type given by \p step. + * \param step Which step the input data is for. + * \param private_key Identifier of the private key to use. It must + * allow the usage #PSA_KEY_USAGE_DERIVE. + * \param[in] peer_key Public key of the peer. The peer key must be in the + * same format that psa_import_key() accepts for the + * public key type corresponding to the type of + * private_key. That is, this function performs the + * equivalent of + * #psa_import_key(..., + * `peer_key`, `peer_key_length`) where + * with key attributes indicating the public key + * type corresponding to the type of `private_key`. + * For example, for EC keys, this means that peer_key + * is interpreted as a point on the curve that the + * private key is on. The standard formats for public + * keys are documented in the documentation of + * psa_export_public_key(). + * \param peer_key_length Size of \p peer_key in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \c private_key is not compatible with \c alg, + * or \p peer_key is not valid for \c alg or not compatible with + * \c private_key, or \c step does not allow an input resulting + * from a key agreement. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \c alg is not supported or is not a key derivation algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid for this key agreement \p step, + * or the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_key_derivation_key_agreement( + psa_key_derivation_operation_t *operation, + psa_key_derivation_step_t step, + mbedtls_svc_key_id_t private_key, + const uint8_t *peer_key, + size_t peer_key_length); + +/** Read some data from a key derivation operation. + * + * This function calculates output bytes from a key derivation algorithm and + * return those bytes. + * If you view the key derivation's output as a stream of bytes, this + * function destructively reads the requested number of bytes from the + * stream. + * The operation's capacity decreases by the number of bytes read. + * + * If this function returns an error status other than + * #PSA_ERROR_INSUFFICIENT_DATA, the operation enters an error + * state and must be aborted by calling psa_key_derivation_abort(). + * + * \param[in,out] operation The key derivation operation object to read from. + * \param[out] output Buffer where the output will be written. + * \param output_length Number of bytes to output. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED + * One of the inputs was a key whose policy didn't allow + * #PSA_KEY_USAGE_DERIVE. + * \retval #PSA_ERROR_INSUFFICIENT_DATA + * The operation's capacity was less than + * \p output_length bytes. Note that in this case, + * no output is written to the output buffer. + * The operation's capacity is set to 0, thus + * subsequent calls to this function will not + * succeed, even with a smaller output buffer. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active and completed + * all required input steps), or the library has not been previously + * initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_key_derivation_output_bytes( + psa_key_derivation_operation_t *operation, + uint8_t *output, + size_t output_length); + +/** Derive a key from an ongoing key derivation operation. + * + * This function calculates output bytes from a key derivation algorithm + * and uses those bytes to generate a key deterministically. + * The key's location, usage policy, type and size are taken from + * \p attributes. + * + * If you view the key derivation's output as a stream of bytes, this + * function destructively reads as many bytes as required from the + * stream. + * The operation's capacity decreases by the number of bytes read. + * + * If this function returns an error status other than + * #PSA_ERROR_INSUFFICIENT_DATA, the operation enters an error + * state and must be aborted by calling psa_key_derivation_abort(). + * + * How much output is produced and consumed from the operation, and how + * the key is derived, depends on the key type and on the key size + * (denoted \c bits below): + * + * - For key types for which the key is an arbitrary sequence of bytes + * of a given size, this function is functionally equivalent to + * calling #psa_key_derivation_output_bytes + * and passing the resulting output to #psa_import_key. + * However, this function has a security benefit: + * if the implementation provides an isolation boundary then + * the key material is not exposed outside the isolation boundary. + * As a consequence, for these key types, this function always consumes + * exactly (\c bits / 8) bytes from the operation. + * The following key types defined in this specification follow this scheme: + * + * - #PSA_KEY_TYPE_AES; + * - #PSA_KEY_TYPE_ARIA; + * - #PSA_KEY_TYPE_CAMELLIA; + * - #PSA_KEY_TYPE_DERIVE; + * - #PSA_KEY_TYPE_HMAC; + * - #PSA_KEY_TYPE_PASSWORD_HASH. + * + * - For ECC keys on a Montgomery elliptic curve + * (#PSA_KEY_TYPE_ECC_KEY_PAIR(\c curve) where \c curve designates a + * Montgomery curve), this function always draws a byte string whose + * length is determined by the curve, and sets the mandatory bits + * accordingly. That is: + * + * - Curve25519 (#PSA_ECC_FAMILY_MONTGOMERY, 255 bits): draw a 32-byte + * string and process it as specified in RFC 7748 §5. + * - Curve448 (#PSA_ECC_FAMILY_MONTGOMERY, 448 bits): draw a 56-byte + * string and process it as specified in RFC 7748 §5. + * + * - For key types for which the key is represented by a single sequence of + * \c bits bits with constraints as to which bit sequences are acceptable, + * this function draws a byte string of length (\c bits / 8) bytes rounded + * up to the nearest whole number of bytes. If the resulting byte string + * is acceptable, it becomes the key, otherwise the drawn bytes are discarded. + * This process is repeated until an acceptable byte string is drawn. + * The byte string drawn from the operation is interpreted as specified + * for the output produced by psa_export_key(). + * The following key types defined in this specification follow this scheme: + * + * - #PSA_KEY_TYPE_DES. + * Force-set the parity bits, but discard forbidden weak keys. + * For 2-key and 3-key triple-DES, the three keys are generated + * successively (for example, for 3-key triple-DES, + * if the first 8 bytes specify a weak key and the next 8 bytes do not, + * discard the first 8 bytes, use the next 8 bytes as the first key, + * and continue reading output from the operation to derive the other + * two keys). + * - Finite-field Diffie-Hellman keys (#PSA_KEY_TYPE_DH_KEY_PAIR(\c group) + * where \c group designates any Diffie-Hellman group) and + * ECC keys on a Weierstrass elliptic curve + * (#PSA_KEY_TYPE_ECC_KEY_PAIR(\c curve) where \c curve designates a + * Weierstrass curve). + * For these key types, interpret the byte string as integer + * in big-endian order. Discard it if it is not in the range + * [0, *N* - 2] where *N* is the boundary of the private key domain + * (the prime *p* for Diffie-Hellman, the subprime *q* for DSA, + * or the order of the curve's base point for ECC). + * Add 1 to the resulting integer and use this as the private key *x*. + * This method allows compliance to NIST standards, specifically + * the methods titled "key-pair generation by testing candidates" + * in NIST SP 800-56A §5.6.1.1.4 for Diffie-Hellman, + * in FIPS 186-4 §B.1.2 for DSA, and + * in NIST SP 800-56A §5.6.1.2.2 or + * FIPS 186-4 §B.4.2 for elliptic curve keys. + * + * - For other key types, including #PSA_KEY_TYPE_RSA_KEY_PAIR, + * the way in which the operation output is consumed is + * implementation-defined. + * + * In all cases, the data that is read is discarded from the operation. + * The operation's capacity is decreased by the number of bytes read. + * + * For algorithms that take an input step #PSA_KEY_DERIVATION_INPUT_SECRET, + * the input to that step must be provided with psa_key_derivation_input_key(). + * Future versions of this specification may include additional restrictions + * on the derived key based on the attributes and strength of the secret key. + * + * \param[in] attributes The attributes for the new key. + * If the key type to be created is + * #PSA_KEY_TYPE_PASSWORD_HASH then the algorithm in + * the policy must be the same as in the current + * operation. + * \param[in,out] operation The key derivation operation object to read from. + * \param[out] key On success, an identifier for the newly created + * key. For persistent keys, this is the key + * identifier defined in \p attributes. + * \c 0 on failure. + * + * \retval #PSA_SUCCESS + * Success. + * If the key is persistent, the key material and the key's metadata + * have been saved to persistent storage. + * \retval #PSA_ERROR_ALREADY_EXISTS + * This is an attempt to create a persistent key, and there is + * already a persistent key with the given identifier. + * \retval #PSA_ERROR_INSUFFICIENT_DATA + * There was not enough data to create the desired key. + * Note that in this case, no output is written to the output buffer. + * The operation's capacity is set to 0, thus subsequent calls to + * this function will not succeed, even with a smaller output buffer. + * \retval #PSA_ERROR_NOT_SUPPORTED + * The key type or key size is not supported, either by the + * implementation in general or in this particular location. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The provided key attributes are not valid for the operation. + * \retval #PSA_ERROR_NOT_PERMITTED + * The #PSA_KEY_DERIVATION_INPUT_SECRET or + * #PSA_KEY_DERIVATION_INPUT_PASSWORD input was not provided through a + * key; or one of the inputs was a key whose policy didn't allow + * #PSA_KEY_USAGE_DERIVE. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_STORAGE \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active and completed + * all required input steps), or the library has not been previously + * initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_key_derivation_output_key( + const psa_key_attributes_t *attributes, + psa_key_derivation_operation_t *operation, + mbedtls_svc_key_id_t *key); + +/** Compare output data from a key derivation operation to an expected value. + * + * This function calculates output bytes from a key derivation algorithm and + * compares those bytes to an expected value in constant time. + * If you view the key derivation's output as a stream of bytes, this + * function destructively reads the expected number of bytes from the + * stream before comparing them. + * The operation's capacity decreases by the number of bytes read. + * + * This is functionally equivalent to the following code: + * \code + * psa_key_derivation_output_bytes(operation, tmp, output_length); + * if (memcmp(output, tmp, output_length) != 0) + * return PSA_ERROR_INVALID_SIGNATURE; + * \endcode + * except (1) it works even if the key's policy does not allow outputting the + * bytes, and (2) the comparison will be done in constant time. + * + * If this function returns an error status other than + * #PSA_ERROR_INSUFFICIENT_DATA or #PSA_ERROR_INVALID_SIGNATURE, + * the operation enters an error state and must be aborted by calling + * psa_key_derivation_abort(). + * + * \param[in,out] operation The key derivation operation object to read from. + * \param[in] expected_output Buffer containing the expected derivation output. + * \param output_length Length of the expected output; this is also the + * number of bytes that will be read. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The output was read successfully, but it differs from the expected + * output. + * \retval #PSA_ERROR_NOT_PERMITTED + * One of the inputs was a key whose policy didn't allow + * #PSA_KEY_USAGE_VERIFY_DERIVATION. + * \retval #PSA_ERROR_INSUFFICIENT_DATA + * The operation's capacity was less than + * \p output_length bytes. Note that in this case, + * the operation's capacity is set to 0, thus + * subsequent calls to this function will not + * succeed, even with a smaller expected output. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active and completed + * all required input steps), or the library has not been previously + * initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_key_derivation_verify_bytes( + psa_key_derivation_operation_t *operation, + const uint8_t *expected_output, + size_t output_length); + +/** Compare output data from a key derivation operation to an expected value + * stored in a key object. + * + * This function calculates output bytes from a key derivation algorithm and + * compares those bytes to an expected value, provided as key of type + * #PSA_KEY_TYPE_PASSWORD_HASH. + * If you view the key derivation's output as a stream of bytes, this + * function destructively reads the number of bytes corresponding to the + * length of the expected value from the stream before comparing them. + * The operation's capacity decreases by the number of bytes read. + * + * This is functionally equivalent to exporting the key and calling + * psa_key_derivation_verify_bytes() on the result, except that it + * works even if the key cannot be exported. + * + * If this function returns an error status other than + * #PSA_ERROR_INSUFFICIENT_DATA or #PSA_ERROR_INVALID_SIGNATURE, + * the operation enters an error state and must be aborted by calling + * psa_key_derivation_abort(). + * + * \param[in,out] operation The key derivation operation object to read from. + * \param[in] expected A key of type #PSA_KEY_TYPE_PASSWORD_HASH + * containing the expected output. Its policy must + * include the #PSA_KEY_USAGE_VERIFY_DERIVATION flag + * and the permitted algorithm must match the + * operation. The value of this key was likely + * computed by a previous call to + * psa_key_derivation_output_key(). + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The output was read successfully, but if differs from the expected + * output. + * \retval #PSA_ERROR_INVALID_HANDLE + * The key passed as the expected value does not exist. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The key passed as the expected value has an invalid type. + * \retval #PSA_ERROR_NOT_PERMITTED + * The key passed as the expected value does not allow this usage or + * this algorithm; or one of the inputs was a key whose policy didn't + * allow #PSA_KEY_USAGE_VERIFY_DERIVATION. + * \retval #PSA_ERROR_INSUFFICIENT_DATA + * The operation's capacity was less than + * the length of the expected value. In this case, + * the operation's capacity is set to 0, thus + * subsequent calls to this function will not + * succeed, even with a smaller expected output. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active and completed + * all required input steps), or the library has not been previously + * initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_key_derivation_verify_key( + psa_key_derivation_operation_t *operation, + psa_key_id_t expected); + +/** Abort a key derivation operation. + * + * Aborting an operation frees all associated resources except for the \c + * operation structure itself. Once aborted, the operation object can be reused + * for another operation by calling psa_key_derivation_setup() again. + * + * This function may be called at any time after the operation + * object has been initialized as described in #psa_key_derivation_operation_t. + * + * In particular, it is valid to call psa_key_derivation_abort() twice, or to + * call psa_key_derivation_abort() on an operation that has not been set up. + * + * \param[in,out] operation The operation to abort. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_key_derivation_abort( + psa_key_derivation_operation_t *operation); + +/** Perform a key agreement and return the raw shared secret. + * + * \warning The raw result of a key agreement algorithm such as finite-field + * Diffie-Hellman or elliptic curve Diffie-Hellman has biases and should + * not be used directly as key material. It should instead be passed as + * input to a key derivation algorithm. To chain a key agreement with + * a key derivation, use psa_key_derivation_key_agreement() and other + * functions from the key derivation interface. + * + * \param alg The key agreement algorithm to compute + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_RAW_KEY_AGREEMENT(\p alg) + * is true). + * \param private_key Identifier of the private key to use. It must + * allow the usage #PSA_KEY_USAGE_DERIVE. + * \param[in] peer_key Public key of the peer. It must be + * in the same format that psa_import_key() + * accepts. The standard formats for public + * keys are documented in the documentation + * of psa_export_public_key(). + * \param peer_key_length Size of \p peer_key in bytes. + * \param[out] output Buffer where the decrypted message is to + * be written. + * \param output_size Size of the \c output buffer in bytes. + * \param[out] output_length On success, the number of bytes + * that make up the returned output. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p alg is not a key agreement algorithm, or + * \p private_key is not compatible with \p alg, + * or \p peer_key is not valid for \p alg or not compatible with + * \p private_key. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * \p output_size is too small + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p alg is not a supported key agreement algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_raw_key_agreement(psa_algorithm_t alg, + mbedtls_svc_key_id_t private_key, + const uint8_t *peer_key, + size_t peer_key_length, + uint8_t *output, + size_t output_size, + size_t *output_length); + +/**@}*/ + +/** \defgroup random Random generation + * @{ + */ + +/** + * \brief Generate random bytes. + * + * \warning This function **can** fail! Callers MUST check the return status + * and MUST NOT use the content of the output buffer if the return + * status is not #PSA_SUCCESS. + * + * \note To generate a key, use psa_generate_key() instead. + * + * \param[out] output Output buffer for the generated data. + * \param output_size Number of bytes to generate and output. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_generate_random(uint8_t *output, + size_t output_size); + +/** + * \brief Generate a key or key pair. + * + * The key is generated randomly. + * Its location, usage policy, type and size are taken from \p attributes. + * + * Implementations must reject an attempt to generate a key of size 0. + * + * The following type-specific considerations apply: + * - For RSA keys (#PSA_KEY_TYPE_RSA_KEY_PAIR), + * the public exponent is 65537. + * The modulus is a product of two probabilistic primes + * between 2^{n-1} and 2^n where n is the bit size specified in the + * attributes. + * + * \param[in] attributes The attributes for the new key. + * \param[out] key On success, an identifier for the newly created + * key. For persistent keys, this is the key + * identifier defined in \p attributes. + * \c 0 on failure. + * + * \retval #PSA_SUCCESS + * Success. + * If the key is persistent, the key material and the key's metadata + * have been saved to persistent storage. + * \retval #PSA_ERROR_ALREADY_EXISTS + * This is an attempt to create a persistent key, and there is + * already a persistent key with the given identifier. + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_STORAGE \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_generate_key(const psa_key_attributes_t *attributes, + mbedtls_svc_key_id_t *key); + +/**@}*/ + +/** \defgroup interruptible_hash Interruptible sign/verify hash + * @{ + */ + +/** The type of the state data structure for interruptible hash + * signing operations. + * + * Before calling any function on a sign hash operation object, the + * application must initialize it by any of the following means: + * - Set the structure to all-bits-zero, for example: + * \code + * psa_sign_hash_interruptible_operation_t operation; + * memset(&operation, 0, sizeof(operation)); + * \endcode + * - Initialize the structure to logical zero values, for example: + * \code + * psa_sign_hash_interruptible_operation_t operation = {0}; + * \endcode + * - Initialize the structure to the initializer + * #PSA_SIGN_HASH_INTERRUPTIBLE_OPERATION_INIT, for example: + * \code + * psa_sign_hash_interruptible_operation_t operation = + * PSA_SIGN_HASH_INTERRUPTIBLE_OPERATION_INIT; + * \endcode + * - Assign the result of the function + * psa_sign_hash_interruptible_operation_init() to the structure, for + * example: + * \code + * psa_sign_hash_interruptible_operation_t operation; + * operation = psa_sign_hash_interruptible_operation_init(); + * \endcode + * + * This is an implementation-defined \c struct. Applications should not + * make any assumptions about the content of this structure. + * Implementation details can change in future versions without notice. */ +typedef struct psa_sign_hash_interruptible_operation_s psa_sign_hash_interruptible_operation_t; + +/** The type of the state data structure for interruptible hash + * verification operations. + * + * Before calling any function on a sign hash operation object, the + * application must initialize it by any of the following means: + * - Set the structure to all-bits-zero, for example: + * \code + * psa_verify_hash_interruptible_operation_t operation; + * memset(&operation, 0, sizeof(operation)); + * \endcode + * - Initialize the structure to logical zero values, for example: + * \code + * psa_verify_hash_interruptible_operation_t operation = {0}; + * \endcode + * - Initialize the structure to the initializer + * #PSA_VERIFY_HASH_INTERRUPTIBLE_OPERATION_INIT, for example: + * \code + * psa_verify_hash_interruptible_operation_t operation = + * PSA_VERIFY_HASH_INTERRUPTIBLE_OPERATION_INIT; + * \endcode + * - Assign the result of the function + * psa_verify_hash_interruptible_operation_init() to the structure, for + * example: + * \code + * psa_verify_hash_interruptible_operation_t operation; + * operation = psa_verify_hash_interruptible_operation_init(); + * \endcode + * + * This is an implementation-defined \c struct. Applications should not + * make any assumptions about the content of this structure. + * Implementation details can change in future versions without notice. */ +typedef struct psa_verify_hash_interruptible_operation_s psa_verify_hash_interruptible_operation_t; + +/** + * \brief Set the maximum number of ops allowed to be + * executed by an interruptible function in a + * single call. + * + * \warning This is a beta API, and thus subject to change + * at any point. It is not bound by the usual + * interface stability promises. + * + * \note The time taken to execute a single op is + * implementation specific and depends on + * software, hardware, the algorithm, key type and + * curve chosen. Even within a single operation, + * successive ops can take differing amounts of + * time. The only guarantee is that lower values + * for \p max_ops means functions will block for a + * lesser maximum amount of time. The functions + * \c psa_sign_interruptible_get_num_ops() and + * \c psa_verify_interruptible_get_num_ops() are + * provided to help with tuning this value. + * + * \note This value defaults to + * #PSA_INTERRUPTIBLE_MAX_OPS_UNLIMITED, which + * means the whole operation will be done in one + * go, regardless of the number of ops required. + * + * \note If more ops are needed to complete a + * computation, #PSA_OPERATION_INCOMPLETE will be + * returned by the function performing the + * computation. It is then the caller's + * responsibility to either call again with the + * same operation context until it returns 0 or an + * error code; or to call the relevant abort + * function if the answer is no longer required. + * + * \note The interpretation of \p max_ops is also + * implementation defined. On a hard real time + * system, this can indicate a hard deadline, as a + * real-time system needs a guarantee of not + * spending more than X time, however care must be + * taken in such an implementation to avoid the + * situation whereby calls just return, not being + * able to do any actual work within the allotted + * time. On a non-real-time system, the + * implementation can be more relaxed, but again + * whether this number should be interpreted as as + * hard or soft limit or even whether a less than + * or equals as regards to ops executed in a + * single call is implementation defined. + * + * \note For keys in local storage when no accelerator + * driver applies, please see also the + * documentation for \c mbedtls_ecp_set_max_ops(), + * which is the internal implementation in these + * cases. + * + * \warning With implementations that interpret this number + * as a hard limit, setting this number too small + * may result in an infinite loop, whereby each + * call results in immediate return with no ops + * done (as there is not enough time to execute + * any), and thus no result will ever be achieved. + * + * \note This only applies to functions whose + * documentation mentions they may return + * #PSA_OPERATION_INCOMPLETE. + * + * \param max_ops The maximum number of ops to be executed in a + * single call. This can be a number from 0 to + * #PSA_INTERRUPTIBLE_MAX_OPS_UNLIMITED, where 0 + * is the least amount of work done per call. + */ +void psa_interruptible_set_max_ops(uint32_t max_ops); + +/** + * \brief Get the maximum number of ops allowed to be + * executed by an interruptible function in a + * single call. This will return the last + * value set by + * \c psa_interruptible_set_max_ops() or + * #PSA_INTERRUPTIBLE_MAX_OPS_UNLIMITED if + * that function has never been called. + * + * \warning This is a beta API, and thus subject to change + * at any point. It is not bound by the usual + * interface stability promises. + * + * \return Maximum number of ops allowed to be + * executed by an interruptible function in a + * single call. + */ +uint32_t psa_interruptible_get_max_ops(void); + +/** + * \brief Get the number of ops that a hash signing + * operation has taken so far. If the operation + * has completed, then this will represent the + * number of ops required for the entire + * operation. After initialization or calling + * \c psa_sign_hash_interruptible_abort() on + * the operation, a value of 0 will be returned. + * + * \note This interface is guaranteed re-entrant and + * thus may be called from driver code. + * + * \warning This is a beta API, and thus subject to change + * at any point. It is not bound by the usual + * interface stability promises. + * + * This is a helper provided to help you tune the + * value passed to \c + * psa_interruptible_set_max_ops(). + * + * \param operation The \c psa_sign_hash_interruptible_operation_t + * to use. This must be initialized first. + * + * \return Number of ops that the operation has taken so + * far. + */ +uint32_t psa_sign_hash_get_num_ops( + const psa_sign_hash_interruptible_operation_t *operation); + +/** + * \brief Get the number of ops that a hash verification + * operation has taken so far. If the operation + * has completed, then this will represent the + * number of ops required for the entire + * operation. After initialization or calling \c + * psa_verify_hash_interruptible_abort() on the + * operation, a value of 0 will be returned. + * + * \warning This is a beta API, and thus subject to change + * at any point. It is not bound by the usual + * interface stability promises. + * + * This is a helper provided to help you tune the + * value passed to \c + * psa_interruptible_set_max_ops(). + * + * \param operation The \c + * psa_verify_hash_interruptible_operation_t to + * use. This must be initialized first. + * + * \return Number of ops that the operation has taken so + * far. + */ +uint32_t psa_verify_hash_get_num_ops( + const psa_verify_hash_interruptible_operation_t *operation); + +/** + * \brief Start signing a hash or short message with a + * private key, in an interruptible manner. + * + * \see \c psa_sign_hash_complete() + * + * \warning This is a beta API, and thus subject to change + * at any point. It is not bound by the usual + * interface stability promises. + * + * \note This function combined with \c + * psa_sign_hash_complete() is equivalent to + * \c psa_sign_hash() but + * \c psa_sign_hash_complete() can return early and + * resume according to the limit set with \c + * psa_interruptible_set_max_ops() to reduce the + * maximum time spent in a function call. + * + * \note Users should call \c psa_sign_hash_complete() + * repeatedly on the same context after a + * successful call to this function until \c + * psa_sign_hash_complete() either returns 0 or an + * error. \c psa_sign_hash_complete() will return + * #PSA_OPERATION_INCOMPLETE if there is more work + * to do. Alternatively users can call + * \c psa_sign_hash_abort() at any point if they no + * longer want the result. + * + * \note If this function returns an error status, the + * operation enters an error state and must be + * aborted by calling \c psa_sign_hash_abort(). + * + * \param[in, out] operation The \c psa_sign_hash_interruptible_operation_t + * to use. This must be initialized first. + * + * \param key Identifier of the key to use for the operation. + * It must be an asymmetric key pair. The key must + * allow the usage #PSA_KEY_USAGE_SIGN_HASH. + * \param alg A signature algorithm (\c PSA_ALG_XXX + * value such that #PSA_ALG_IS_SIGN_HASH(\p alg) + * is true), that is compatible with + * the type of \p key. + * \param[in] hash The hash or message to sign. + * \param hash_length Size of the \p hash buffer in bytes. + * + * \retval #PSA_SUCCESS + * The operation started successfully - call \c psa_sign_hash_complete() + * with the same context to complete the operation + * + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED + * The key does not have the #PSA_KEY_USAGE_SIGN_HASH flag, or it does + * not permit the requested algorithm. + * \retval #PSA_ERROR_BAD_STATE + * An operation has previously been started on this context, and is + * still in progress. + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_sign_hash_start( + psa_sign_hash_interruptible_operation_t *operation, + mbedtls_svc_key_id_t key, psa_algorithm_t alg, + const uint8_t *hash, size_t hash_length); + +/** + * \brief Continue and eventually complete the action of + * signing a hash or short message with a private + * key, in an interruptible manner. + * + * \see \c psa_sign_hash_start() + * + * \warning This is a beta API, and thus subject to change + * at any point. It is not bound by the usual + * interface stability promises. + * + * \note This function combined with \c + * psa_sign_hash_start() is equivalent to + * \c psa_sign_hash() but this function can return + * early and resume according to the limit set with + * \c psa_interruptible_set_max_ops() to reduce the + * maximum time spent in a function call. + * + * \note Users should call this function on the same + * operation object repeatedly until it either + * returns 0 or an error. This function will return + * #PSA_OPERATION_INCOMPLETE if there is more work + * to do. Alternatively users can call + * \c psa_sign_hash_abort() at any point if they no + * longer want the result. + * + * \note When this function returns successfully, the + * operation becomes inactive. If this function + * returns an error status, the operation enters an + * error state and must be aborted by calling + * \c psa_sign_hash_abort(). + * + * \param[in, out] operation The \c psa_sign_hash_interruptible_operation_t + * to use. This must be initialized first, and have + * had \c psa_sign_hash_start() called with it + * first. + * + * \param[out] signature Buffer where the signature is to be written. + * \param signature_size Size of the \p signature buffer in bytes. This + * must be appropriate for the selected + * algorithm and key: + * - The required signature size is + * #PSA_SIGN_OUTPUT_SIZE(\c key_type, \c + * key_bits, \c alg) where \c key_type and \c + * key_bits are the type and bit-size + * respectively of key. + * - #PSA_SIGNATURE_MAX_SIZE evaluates to the + * maximum signature size of any supported + * signature algorithm. + * \param[out] signature_length On success, the number of bytes that make up + * the returned signature value. + * + * \retval #PSA_SUCCESS + * Operation completed successfully + * + * \retval #PSA_OPERATION_INCOMPLETE + * Operation was interrupted due to the setting of \c + * psa_interruptible_set_max_ops(). There is still work to be done. + * Call this function again with the same operation object. + * + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p signature buffer is too small. You can + * determine a sufficient buffer size by calling + * #PSA_SIGN_OUTPUT_SIZE(\c key_type, \c key_bits, \c alg) + * where \c key_type and \c key_bits are the type and bit-size + * respectively of \c key. + * + * \retval #PSA_ERROR_BAD_STATE + * An operation was not previously started on this context via + * \c psa_sign_hash_start(). + * + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has either not been previously initialized by + * psa_crypto_init() or you did not previously call + * psa_sign_hash_start() with this operation object. It is + * implementation-dependent whether a failure to initialize results in + * this error code. + */ +psa_status_t psa_sign_hash_complete( + psa_sign_hash_interruptible_operation_t *operation, + uint8_t *signature, size_t signature_size, + size_t *signature_length); + +/** + * \brief Abort a sign hash operation. + * + * \warning This is a beta API, and thus subject to change + * at any point. It is not bound by the usual + * interface stability promises. + * + * \note This function is the only function that clears + * the number of ops completed as part of the + * operation. Please ensure you copy this value via + * \c psa_sign_hash_get_num_ops() if required + * before calling. + * + * \note Aborting an operation frees all associated + * resources except for the \p operation structure + * itself. Once aborted, the operation object can + * be reused for another operation by calling \c + * psa_sign_hash_start() again. + * + * \note You may call this function any time after the + * operation object has been initialized. In + * particular, calling \c psa_sign_hash_abort() + * after the operation has already been terminated + * by a call to \c psa_sign_hash_abort() or + * psa_sign_hash_complete() is safe. + * + * \param[in,out] operation Initialized sign hash operation. + * + * \retval #PSA_SUCCESS + * The operation was aborted successfully. + * + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_sign_hash_abort( + psa_sign_hash_interruptible_operation_t *operation); + +/** + * \brief Start reading and verifying a hash or short + * message, in an interruptible manner. + * + * \see \c psa_verify_hash_complete() + * + * \warning This is a beta API, and thus subject to change + * at any point. It is not bound by the usual + * interface stability promises. + * + * \note This function combined with \c + * psa_verify_hash_complete() is equivalent to + * \c psa_verify_hash() but \c + * psa_verify_hash_complete() can return early and + * resume according to the limit set with \c + * psa_interruptible_set_max_ops() to reduce the + * maximum time spent in a function. + * + * \note Users should call \c psa_verify_hash_complete() + * repeatedly on the same operation object after a + * successful call to this function until \c + * psa_verify_hash_complete() either returns 0 or + * an error. \c psa_verify_hash_complete() will + * return #PSA_OPERATION_INCOMPLETE if there is + * more work to do. Alternatively users can call + * \c psa_verify_hash_abort() at any point if they + * no longer want the result. + * + * \note If this function returns an error status, the + * operation enters an error state and must be + * aborted by calling \c psa_verify_hash_abort(). + * + * \param[in, out] operation The \c psa_verify_hash_interruptible_operation_t + * to use. This must be initialized first. + * + * \param key Identifier of the key to use for the operation. + * The key must allow the usage + * #PSA_KEY_USAGE_VERIFY_HASH. + * \param alg A signature algorithm (\c PSA_ALG_XXX + * value such that #PSA_ALG_IS_SIGN_HASH(\p alg) + * is true), that is compatible with + * the type of \p key. + * \param[in] hash The hash whose signature is to be verified. + * \param hash_length Size of the \p hash buffer in bytes. + * \param[in] signature Buffer containing the signature to verify. + * \param signature_length Size of the \p signature buffer in bytes. + * + * \retval #PSA_SUCCESS + * The operation started successfully - please call \c + * psa_verify_hash_complete() with the same context to complete the + * operation. + * + * \retval #PSA_ERROR_BAD_STATE + * Another operation has already been started on this context, and is + * still in progress. + * + * \retval #PSA_ERROR_NOT_PERMITTED + * The key does not have the #PSA_KEY_USAGE_VERIFY_HASH flag, or it does + * not permit the requested algorithm. + * + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_verify_hash_start( + psa_verify_hash_interruptible_operation_t *operation, + mbedtls_svc_key_id_t key, psa_algorithm_t alg, + const uint8_t *hash, size_t hash_length, + const uint8_t *signature, size_t signature_length); + +/** + * \brief Continue and eventually complete the action of + * reading and verifying a hash or short message + * signed with a private key, in an interruptible + * manner. + * + * \see \c psa_verify_hash_start() + * + * \warning This is a beta API, and thus subject to change + * at any point. It is not bound by the usual + * interface stability promises. + * + * \note This function combined with \c + * psa_verify_hash_start() is equivalent to + * \c psa_verify_hash() but this function can + * return early and resume according to the limit + * set with \c psa_interruptible_set_max_ops() to + * reduce the maximum time spent in a function + * call. + * + * \note Users should call this function on the same + * operation object repeatedly until it either + * returns 0 or an error. This function will return + * #PSA_OPERATION_INCOMPLETE if there is more work + * to do. Alternatively users can call + * \c psa_verify_hash_abort() at any point if they + * no longer want the result. + * + * \note When this function returns successfully, the + * operation becomes inactive. If this function + * returns an error status, the operation enters an + * error state and must be aborted by calling + * \c psa_verify_hash_abort(). + * + * \param[in, out] operation The \c psa_verify_hash_interruptible_operation_t + * to use. This must be initialized first, and have + * had \c psa_verify_hash_start() called with it + * first. + * + * \retval #PSA_SUCCESS + * Operation completed successfully, and the passed signature is valid. + * + * \retval #PSA_OPERATION_INCOMPLETE + * Operation was interrupted due to the setting of \c + * psa_interruptible_set_max_ops(). There is still work to be done. + * Call this function again with the same operation object. + * + * \retval #PSA_ERROR_INVALID_HANDLE \emptydescription + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The calculation was performed successfully, but the passed + * signature is not a valid signature. + * \retval #PSA_ERROR_BAD_STATE + * An operation was not previously started on this context via + * \c psa_verify_hash_start(). + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has either not been previously initialized by + * psa_crypto_init() or you did not previously call + * psa_verify_hash_start() on this object. It is + * implementation-dependent whether a failure to initialize results in + * this error code. + */ +psa_status_t psa_verify_hash_complete( + psa_verify_hash_interruptible_operation_t *operation); + +/** + * \brief Abort a verify hash operation. + * + * \warning This is a beta API, and thus subject to change at + * any point. It is not bound by the usual interface + * stability promises. + * + * \note This function is the only function that clears the + * number of ops completed as part of the operation. + * Please ensure you copy this value via + * \c psa_verify_hash_get_num_ops() if required + * before calling. + * + * \note Aborting an operation frees all associated + * resources except for the operation structure + * itself. Once aborted, the operation object can be + * reused for another operation by calling \c + * psa_verify_hash_start() again. + * + * \note You may call this function any time after the + * operation object has been initialized. + * In particular, calling \c psa_verify_hash_abort() + * after the operation has already been terminated by + * a call to \c psa_verify_hash_abort() or + * psa_verify_hash_complete() is safe. + * + * \param[in,out] operation Initialized verify hash operation. + * + * \retval #PSA_SUCCESS + * The operation was aborted successfully. + * + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_verify_hash_abort( + psa_verify_hash_interruptible_operation_t *operation); + + +/**@}*/ + +#ifdef __cplusplus +} +#endif + +/* The file "crypto_sizes.h" contains definitions for size calculation + * macros whose definitions are implementation-specific. */ +#include "crypto_sizes.h" + +/* The file "crypto_struct.h" contains definitions for + * implementation-specific structs that are declared above. */ +#if defined(MBEDTLS_PSA_CRYPTO_STRUCT_FILE) +#include MBEDTLS_PSA_CRYPTO_STRUCT_FILE +#else +#include "crypto_struct.h" +#endif + +/* The file "crypto_extra.h" contains vendor-specific definitions. This + * can include vendor-defined algorithms, extra functions, etc. */ +#include "crypto_extra.h" + +#endif /* PSA_CRYPTO_H */ diff --git a/include/psa/crypto_adjust_auto_enabled.h b/include/psa/crypto_adjust_auto_enabled.h new file mode 100644 index 0000000..63fb29e --- /dev/null +++ b/include/psa/crypto_adjust_auto_enabled.h @@ -0,0 +1,21 @@ +/** + * \file psa/crypto_adjust_auto_enabled.h + * \brief Adjust PSA configuration: enable always-on features + * + * Always enable certain features which require a negligible amount of code + * to implement, to avoid some edge cases in the configuration combinatorics. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_ADJUST_AUTO_ENABLED_H +#define PSA_CRYPTO_ADJUST_AUTO_ENABLED_H + +#define PSA_WANT_KEY_TYPE_DERIVE 1 +#define PSA_WANT_KEY_TYPE_PASSWORD 1 +#define PSA_WANT_KEY_TYPE_PASSWORD_HASH 1 +#define PSA_WANT_KEY_TYPE_RAW_DATA 1 + +#endif /* PSA_CRYPTO_ADJUST_AUTO_ENABLED_H */ diff --git a/include/psa/crypto_adjust_config_key_pair_types.h b/include/psa/crypto_adjust_config_key_pair_types.h new file mode 100644 index 0000000..63afc0e --- /dev/null +++ b/include/psa/crypto_adjust_config_key_pair_types.h @@ -0,0 +1,91 @@ +/** + * \file psa/crypto_adjust_config_key_pair_types.h + * \brief Adjust PSA configuration for key pair types. + * + * See docs/proposed/psa-conditional-inclusion-c.md. + * - Support non-basic operations in a keypair type implicitly enables basic + * support for that keypair type. + * - Support for a keypair type implicitly enables the corresponding public + * key type. + * - Basic support for a keypair type implicilty enables import/export support + * for that keypair type. Warning: this is implementation-specific (mainly + * for the benefit of testing) and may change in the future! + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_ADJUST_KEYPAIR_TYPES_H +#define PSA_CRYPTO_ADJUST_KEYPAIR_TYPES_H + +/***************************************************************** + * ANYTHING -> BASIC + ****************************************************************/ + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_IMPORT) || \ + defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_EXPORT) || \ + defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE) || \ + defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE) +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC 1 +#endif + +#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_IMPORT) || \ + defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_EXPORT) || \ + defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE) || \ + defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_DERIVE) +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_BASIC 1 +#endif + +#if defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_IMPORT) || \ + defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_EXPORT) || \ + defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_GENERATE) || \ + defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_DERIVE) +#define PSA_WANT_KEY_TYPE_DH_KEY_PAIR_BASIC 1 +#endif + +/***************************************************************** + * BASIC -> corresponding PUBLIC + ****************************************************************/ + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC) +#define PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY 1 +#endif + +#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_BASIC) +#define PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY 1 +#endif + +#if defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_BASIC) +#define PSA_WANT_KEY_TYPE_DH_PUBLIC_KEY 1 +#endif + +/***************************************************************** + * BASIC -> IMPORT+EXPORT + * + * (Implementation-specific, may change in the future.) + ****************************************************************/ + +/* Even though KEY_PAIR symbols' feature several level of support (BASIC, IMPORT, + * EXPORT, GENERATE, DERIVE) we're not planning to have support only for BASIC + * without IMPORT/EXPORT since these last 2 features are strongly used in tests. + * In general it is allowed to include more feature than what is strictly + * requested. + * As a consequence IMPORT and EXPORT features will be automatically enabled + * as soon as the BASIC one is. */ +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC) +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_IMPORT 1 +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_EXPORT 1 +#endif + +#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_BASIC) +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_IMPORT 1 +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_EXPORT 1 +#endif + +#if defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_BASIC) +#define PSA_WANT_KEY_TYPE_DH_KEY_PAIR_IMPORT 1 +#define PSA_WANT_KEY_TYPE_DH_KEY_PAIR_EXPORT 1 +#endif + +#endif /* PSA_CRYPTO_ADJUST_KEYPAIR_TYPES_H */ diff --git a/include/psa/crypto_adjust_config_synonyms.h b/include/psa/crypto_adjust_config_synonyms.h new file mode 100644 index 0000000..cf33465 --- /dev/null +++ b/include/psa/crypto_adjust_config_synonyms.h @@ -0,0 +1,45 @@ +/** + * \file psa/crypto_adjust_config_synonyms.h + * \brief Adjust PSA configuration: enable quasi-synonyms + * + * When two features require almost the same code, we automatically enable + * both when either one is requested, to reduce the combinatorics of + * possible configurations. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_ADJUST_CONFIG_SYNONYMS_H +#define PSA_CRYPTO_ADJUST_CONFIG_SYNONYMS_H + +/****************************************************************/ +/* De facto synonyms */ +/****************************************************************/ + +#if defined(PSA_WANT_ALG_ECDSA_ANY) && !defined(PSA_WANT_ALG_ECDSA) +#define PSA_WANT_ALG_ECDSA PSA_WANT_ALG_ECDSA_ANY +#elif !defined(PSA_WANT_ALG_ECDSA_ANY) && defined(PSA_WANT_ALG_ECDSA) +#define PSA_WANT_ALG_ECDSA_ANY PSA_WANT_ALG_ECDSA +#endif + +#if defined(PSA_WANT_ALG_CCM_STAR_NO_TAG) && !defined(PSA_WANT_ALG_CCM) +#define PSA_WANT_ALG_CCM PSA_WANT_ALG_CCM_STAR_NO_TAG +#elif !defined(PSA_WANT_ALG_CCM_STAR_NO_TAG) && defined(PSA_WANT_ALG_CCM) +#define PSA_WANT_ALG_CCM_STAR_NO_TAG PSA_WANT_ALG_CCM +#endif + +#if defined(PSA_WANT_ALG_RSA_PKCS1V15_SIGN_RAW) && !defined(PSA_WANT_ALG_RSA_PKCS1V15_SIGN) +#define PSA_WANT_ALG_RSA_PKCS1V15_SIGN PSA_WANT_ALG_RSA_PKCS1V15_SIGN_RAW +#elif !defined(PSA_WANT_ALG_RSA_PKCS1V15_SIGN_RAW) && defined(PSA_WANT_ALG_RSA_PKCS1V15_SIGN) +#define PSA_WANT_ALG_RSA_PKCS1V15_SIGN_RAW PSA_WANT_ALG_RSA_PKCS1V15_SIGN +#endif + +#if defined(PSA_WANT_ALG_RSA_PSS_ANY_SALT) && !defined(PSA_WANT_ALG_RSA_PSS) +#define PSA_WANT_ALG_RSA_PSS PSA_WANT_ALG_RSA_PSS_ANY_SALT +#elif !defined(PSA_WANT_ALG_RSA_PSS_ANY_SALT) && defined(PSA_WANT_ALG_RSA_PSS) +#define PSA_WANT_ALG_RSA_PSS_ANY_SALT PSA_WANT_ALG_RSA_PSS +#endif + +#endif /* PSA_CRYPTO_ADJUST_CONFIG_SYNONYMS_H */ diff --git a/include/psa/crypto_builtin_composites.h b/include/psa/crypto_builtin_composites.h new file mode 100644 index 0000000..35c2e29 --- /dev/null +++ b/include/psa/crypto_builtin_composites.h @@ -0,0 +1,210 @@ +/* + * Context structure declaration of the Mbed TLS software-based PSA drivers + * called through the PSA Crypto driver dispatch layer. + * This file contains the context structures of those algorithms which need to + * rely on other algorithms, i.e. are 'composite' algorithms. + * + * \note This file may not be included directly. Applications must + * include psa/crypto.h. + * + * \note This header and its content are not part of the Mbed TLS API and + * applications must not depend on it. Its main purpose is to define the + * multi-part state objects of the Mbed TLS software-based PSA drivers. The + * definitions of these objects are then used by crypto_struct.h to define the + * implementation-defined types of PSA multi-part state objects. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_BUILTIN_COMPOSITES_H +#define PSA_CRYPTO_BUILTIN_COMPOSITES_H +#include "mbedtls/private_access.h" + +#include <psa/crypto_driver_common.h> + +#include "mbedtls/cmac.h" +#include "mbedtls/gcm.h" +#include "mbedtls/ccm.h" +#include "mbedtls/chachapoly.h" + +/* + * MAC multi-part operation definitions. + */ +#if defined(MBEDTLS_PSA_BUILTIN_ALG_CMAC) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_HMAC) +#define MBEDTLS_PSA_BUILTIN_MAC +#endif + +#if defined(MBEDTLS_PSA_BUILTIN_ALG_HMAC) || defined(PSA_CRYPTO_DRIVER_TEST) +typedef struct { + /** The HMAC algorithm in use */ + psa_algorithm_t MBEDTLS_PRIVATE(alg); + /** The hash context. */ + struct psa_hash_operation_s hash_ctx; + /** The HMAC part of the context. */ + uint8_t MBEDTLS_PRIVATE(opad)[PSA_HMAC_MAX_HASH_BLOCK_SIZE]; +} mbedtls_psa_hmac_operation_t; + +#define MBEDTLS_PSA_HMAC_OPERATION_INIT { 0, PSA_HASH_OPERATION_INIT, { 0 } } +#endif /* MBEDTLS_PSA_BUILTIN_ALG_HMAC */ + +typedef struct { + psa_algorithm_t MBEDTLS_PRIVATE(alg); + union { + unsigned MBEDTLS_PRIVATE(dummy); /* Make the union non-empty even with no supported algorithms. */ +#if defined(MBEDTLS_PSA_BUILTIN_ALG_HMAC) || defined(PSA_CRYPTO_DRIVER_TEST) + mbedtls_psa_hmac_operation_t MBEDTLS_PRIVATE(hmac); +#endif /* MBEDTLS_PSA_BUILTIN_ALG_HMAC */ +#if defined(MBEDTLS_PSA_BUILTIN_ALG_CMAC) || defined(PSA_CRYPTO_DRIVER_TEST) + mbedtls_cipher_context_t MBEDTLS_PRIVATE(cmac); +#endif /* MBEDTLS_PSA_BUILTIN_ALG_CMAC */ + } MBEDTLS_PRIVATE(ctx); +} mbedtls_psa_mac_operation_t; + +#define MBEDTLS_PSA_MAC_OPERATION_INIT { 0, { 0 } } + +#if defined(MBEDTLS_PSA_BUILTIN_ALG_GCM) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_CCM) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_CHACHA20_POLY1305) +#define MBEDTLS_PSA_BUILTIN_AEAD 1 +#endif + +/* Context structure for the Mbed TLS AEAD implementation. */ +typedef struct { + psa_algorithm_t MBEDTLS_PRIVATE(alg); + psa_key_type_t MBEDTLS_PRIVATE(key_type); + + unsigned int MBEDTLS_PRIVATE(is_encrypt) : 1; + + uint8_t MBEDTLS_PRIVATE(tag_length); + + union { + unsigned dummy; /* Enable easier initializing of the union. */ +#if defined(MBEDTLS_PSA_BUILTIN_ALG_CCM) + mbedtls_ccm_context MBEDTLS_PRIVATE(ccm); +#endif /* MBEDTLS_PSA_BUILTIN_ALG_CCM */ +#if defined(MBEDTLS_PSA_BUILTIN_ALG_GCM) + mbedtls_gcm_context MBEDTLS_PRIVATE(gcm); +#endif /* MBEDTLS_PSA_BUILTIN_ALG_GCM */ +#if defined(MBEDTLS_PSA_BUILTIN_ALG_CHACHA20_POLY1305) + mbedtls_chachapoly_context MBEDTLS_PRIVATE(chachapoly); +#endif /* MBEDTLS_PSA_BUILTIN_ALG_CHACHA20_POLY1305 */ + + } ctx; + +} mbedtls_psa_aead_operation_t; + +#define MBEDTLS_PSA_AEAD_OPERATION_INIT { 0, 0, 0, 0, { 0 } } + +#include "mbedtls/ecdsa.h" + +/* Context structure for the Mbed TLS interruptible sign hash implementation. */ +typedef struct { +#if (defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)) && \ + defined(MBEDTLS_ECP_RESTARTABLE) + mbedtls_ecdsa_context *MBEDTLS_PRIVATE(ctx); + mbedtls_ecdsa_restart_ctx MBEDTLS_PRIVATE(restart_ctx); + + uint32_t MBEDTLS_PRIVATE(num_ops); + + size_t MBEDTLS_PRIVATE(coordinate_bytes); + psa_algorithm_t MBEDTLS_PRIVATE(alg); + mbedtls_md_type_t MBEDTLS_PRIVATE(md_alg); + uint8_t MBEDTLS_PRIVATE(hash)[PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS)]; + size_t MBEDTLS_PRIVATE(hash_length); + +#else + /* Make the struct non-empty if algs not supported. */ + unsigned MBEDTLS_PRIVATE(dummy); + +#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || + * defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) && + * defined( MBEDTLS_ECP_RESTARTABLE ) */ +} mbedtls_psa_sign_hash_interruptible_operation_t; + +#if (defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)) && \ + defined(MBEDTLS_ECP_RESTARTABLE) +#define MBEDTLS_PSA_SIGN_HASH_INTERRUPTIBLE_OPERATION_INIT { { 0 }, { 0 }, 0, 0, 0, 0, 0, 0 } +#else +#define MBEDTLS_PSA_SIGN_HASH_INTERRUPTIBLE_OPERATION_INIT { 0 } +#endif + +/* Context structure for the Mbed TLS interruptible verify hash + * implementation.*/ +typedef struct { +#if (defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)) && \ + defined(MBEDTLS_ECP_RESTARTABLE) + + mbedtls_ecdsa_context *MBEDTLS_PRIVATE(ctx); + mbedtls_ecdsa_restart_ctx MBEDTLS_PRIVATE(restart_ctx); + + uint32_t MBEDTLS_PRIVATE(num_ops); + + uint8_t MBEDTLS_PRIVATE(hash)[PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS)]; + size_t MBEDTLS_PRIVATE(hash_length); + + mbedtls_mpi MBEDTLS_PRIVATE(r); + mbedtls_mpi MBEDTLS_PRIVATE(s); + +#else + /* Make the struct non-empty if algs not supported. */ + unsigned MBEDTLS_PRIVATE(dummy); + +#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || + * defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) && + * defined( MBEDTLS_ECP_RESTARTABLE ) */ + +} mbedtls_psa_verify_hash_interruptible_operation_t; + +#if (defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)) && \ + defined(MBEDTLS_ECP_RESTARTABLE) +#define MBEDTLS_VERIFY_SIGN_HASH_INTERRUPTIBLE_OPERATION_INIT { { 0 }, { 0 }, 0, 0, 0, 0, { 0 }, \ + { 0 } } +#else +#define MBEDTLS_VERIFY_SIGN_HASH_INTERRUPTIBLE_OPERATION_INIT { 0 } +#endif + + +/* EC-JPAKE operation definitions */ + +#include "mbedtls/ecjpake.h" + +#if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE) +#define MBEDTLS_PSA_BUILTIN_PAKE 1 +#endif + +/* Note: the format for mbedtls_ecjpake_read/write function has an extra + * length byte for each step, plus an extra 3 bytes for ECParameters in the + * server's 2nd round. */ +#define MBEDTLS_PSA_JPAKE_BUFFER_SIZE ((3 + 1 + 65 + 1 + 65 + 1 + 32) * 2) + +typedef struct { + psa_algorithm_t MBEDTLS_PRIVATE(alg); + + uint8_t *MBEDTLS_PRIVATE(password); + size_t MBEDTLS_PRIVATE(password_len); +#if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE) + mbedtls_ecjpake_role MBEDTLS_PRIVATE(role); + uint8_t MBEDTLS_PRIVATE(buffer[MBEDTLS_PSA_JPAKE_BUFFER_SIZE]); + size_t MBEDTLS_PRIVATE(buffer_length); + size_t MBEDTLS_PRIVATE(buffer_offset); +#endif + /* Context structure for the Mbed TLS EC-JPAKE implementation. */ + union { + unsigned int MBEDTLS_PRIVATE(dummy); +#if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE) + mbedtls_ecjpake_context MBEDTLS_PRIVATE(jpake); +#endif + } MBEDTLS_PRIVATE(ctx); + +} mbedtls_psa_pake_operation_t; + +#define MBEDTLS_PSA_PAKE_OPERATION_INIT { { 0 } } + +#endif /* PSA_CRYPTO_BUILTIN_COMPOSITES_H */ diff --git a/include/psa/crypto_builtin_key_derivation.h b/include/psa/crypto_builtin_key_derivation.h new file mode 100644 index 0000000..6b91ae7 --- /dev/null +++ b/include/psa/crypto_builtin_key_derivation.h @@ -0,0 +1,118 @@ +/* + * Context structure declaration of the Mbed TLS software-based PSA drivers + * called through the PSA Crypto driver dispatch layer. + * This file contains the context structures of key derivation algorithms + * which need to rely on other algorithms. + * + * \note This file may not be included directly. Applications must + * include psa/crypto.h. + * + * \note This header and its content are not part of the Mbed TLS API and + * applications must not depend on it. Its main purpose is to define the + * multi-part state objects of the Mbed TLS software-based PSA drivers. The + * definitions of these objects are then used by crypto_struct.h to define the + * implementation-defined types of PSA multi-part state objects. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_BUILTIN_KEY_DERIVATION_H +#define PSA_CRYPTO_BUILTIN_KEY_DERIVATION_H +#include "mbedtls/private_access.h" + +#include <psa/crypto_driver_common.h> + +#if defined(MBEDTLS_PSA_BUILTIN_ALG_HKDF) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_HKDF_EXTRACT) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_HKDF_EXPAND) +typedef struct { + uint8_t *MBEDTLS_PRIVATE(info); + size_t MBEDTLS_PRIVATE(info_length); +#if PSA_HASH_MAX_SIZE > 0xff +#error "PSA_HASH_MAX_SIZE does not fit in uint8_t" +#endif + uint8_t MBEDTLS_PRIVATE(offset_in_block); + uint8_t MBEDTLS_PRIVATE(block_number); + unsigned int MBEDTLS_PRIVATE(state) : 2; + unsigned int MBEDTLS_PRIVATE(info_set) : 1; + uint8_t MBEDTLS_PRIVATE(output_block)[PSA_HASH_MAX_SIZE]; + uint8_t MBEDTLS_PRIVATE(prk)[PSA_HASH_MAX_SIZE]; + struct psa_mac_operation_s MBEDTLS_PRIVATE(hmac); +} psa_hkdf_key_derivation_t; +#endif /* MBEDTLS_PSA_BUILTIN_ALG_HKDF || + MBEDTLS_PSA_BUILTIN_ALG_HKDF_EXTRACT || + MBEDTLS_PSA_BUILTIN_ALG_HKDF_EXPAND */ +#if defined(MBEDTLS_PSA_BUILTIN_ALG_TLS12_ECJPAKE_TO_PMS) +typedef struct { + uint8_t MBEDTLS_PRIVATE(data)[PSA_TLS12_ECJPAKE_TO_PMS_DATA_SIZE]; +} psa_tls12_ecjpake_to_pms_t; +#endif /* MBEDTLS_PSA_BUILTIN_ALG_TLS12_ECJPAKE_TO_PMS */ + +#if defined(MBEDTLS_PSA_BUILTIN_ALG_TLS12_PRF) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_TLS12_PSK_TO_MS) +typedef enum { + PSA_TLS12_PRF_STATE_INIT, /* no input provided */ + PSA_TLS12_PRF_STATE_SEED_SET, /* seed has been set */ + PSA_TLS12_PRF_STATE_OTHER_KEY_SET, /* other key has been set - optional */ + PSA_TLS12_PRF_STATE_KEY_SET, /* key has been set */ + PSA_TLS12_PRF_STATE_LABEL_SET, /* label has been set */ + PSA_TLS12_PRF_STATE_OUTPUT /* output has been started */ +} psa_tls12_prf_key_derivation_state_t; + +typedef struct psa_tls12_prf_key_derivation_s { +#if PSA_HASH_MAX_SIZE > 0xff +#error "PSA_HASH_MAX_SIZE does not fit in uint8_t" +#endif + + /* Indicates how many bytes in the current HMAC block have + * not yet been read by the user. */ + uint8_t MBEDTLS_PRIVATE(left_in_block); + + /* The 1-based number of the block. */ + uint8_t MBEDTLS_PRIVATE(block_number); + + psa_tls12_prf_key_derivation_state_t MBEDTLS_PRIVATE(state); + + uint8_t *MBEDTLS_PRIVATE(secret); + size_t MBEDTLS_PRIVATE(secret_length); + uint8_t *MBEDTLS_PRIVATE(seed); + size_t MBEDTLS_PRIVATE(seed_length); + uint8_t *MBEDTLS_PRIVATE(label); + size_t MBEDTLS_PRIVATE(label_length); +#if defined(MBEDTLS_PSA_BUILTIN_ALG_TLS12_PSK_TO_MS) + uint8_t *MBEDTLS_PRIVATE(other_secret); + size_t MBEDTLS_PRIVATE(other_secret_length); +#endif /* MBEDTLS_PSA_BUILTIN_ALG_TLS12_PSK_TO_MS */ + + uint8_t MBEDTLS_PRIVATE(Ai)[PSA_HASH_MAX_SIZE]; + + /* `HMAC_hash( prk, A( i ) + seed )` in the notation of RFC 5246, Sect. 5. */ + uint8_t MBEDTLS_PRIVATE(output_block)[PSA_HASH_MAX_SIZE]; +} psa_tls12_prf_key_derivation_t; +#endif /* MBEDTLS_PSA_BUILTIN_ALG_TLS12_PRF) || + * MBEDTLS_PSA_BUILTIN_ALG_TLS12_PSK_TO_MS */ +#if defined(PSA_HAVE_SOFT_PBKDF2) +typedef enum { + PSA_PBKDF2_STATE_INIT, /* no input provided */ + PSA_PBKDF2_STATE_INPUT_COST_SET, /* input cost has been set */ + PSA_PBKDF2_STATE_SALT_SET, /* salt has been set */ + PSA_PBKDF2_STATE_PASSWORD_SET, /* password has been set */ + PSA_PBKDF2_STATE_OUTPUT /* output has been started */ +} psa_pbkdf2_key_derivation_state_t; + +typedef struct { + psa_pbkdf2_key_derivation_state_t MBEDTLS_PRIVATE(state); + uint64_t MBEDTLS_PRIVATE(input_cost); + uint8_t *MBEDTLS_PRIVATE(salt); + size_t MBEDTLS_PRIVATE(salt_length); + uint8_t MBEDTLS_PRIVATE(password)[PSA_HMAC_MAX_HASH_BLOCK_SIZE]; + size_t MBEDTLS_PRIVATE(password_length); + uint8_t MBEDTLS_PRIVATE(output_block)[PSA_HASH_MAX_SIZE]; + uint8_t MBEDTLS_PRIVATE(bytes_used); + uint32_t MBEDTLS_PRIVATE(block_number); +} psa_pbkdf2_key_derivation_t; +#endif /* PSA_HAVE_SOFT_PBKDF2 */ + +#endif /* PSA_CRYPTO_BUILTIN_KEY_DERIVATION_H */ diff --git a/include/psa/crypto_builtin_primitives.h b/include/psa/crypto_builtin_primitives.h new file mode 100644 index 0000000..98ab4d3 --- /dev/null +++ b/include/psa/crypto_builtin_primitives.h @@ -0,0 +1,114 @@ +/* + * Context structure declaration of the Mbed TLS software-based PSA drivers + * called through the PSA Crypto driver dispatch layer. + * This file contains the context structures of those algorithms which do not + * rely on other algorithms, i.e. are 'primitive' algorithms. + * + * \note This file may not be included directly. Applications must + * include psa/crypto.h. + * + * \note This header and its content are not part of the Mbed TLS API and + * applications must not depend on it. Its main purpose is to define the + * multi-part state objects of the Mbed TLS software-based PSA drivers. The + * definitions of these objects are then used by crypto_struct.h to define the + * implementation-defined types of PSA multi-part state objects. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_BUILTIN_PRIMITIVES_H +#define PSA_CRYPTO_BUILTIN_PRIMITIVES_H +#include "mbedtls/private_access.h" + +#include <psa/crypto_driver_common.h> + +/* + * Hash multi-part operation definitions. + */ + +#include "mbedtls/md5.h" +#include "mbedtls/ripemd160.h" +#include "mbedtls/sha1.h" +#include "mbedtls/sha256.h" +#include "mbedtls/sha512.h" +#include "mbedtls/sha3.h" + +#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD5) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_1) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_224) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_256) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_384) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_512) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA3_224) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA3_256) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA3_384) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA3_512) +#define MBEDTLS_PSA_BUILTIN_HASH +#endif + +typedef struct { + psa_algorithm_t MBEDTLS_PRIVATE(alg); + union { + unsigned dummy; /* Make the union non-empty even with no supported algorithms. */ +#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD5) + mbedtls_md5_context md5; +#endif +#if defined(MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160) + mbedtls_ripemd160_context ripemd160; +#endif +#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_1) + mbedtls_sha1_context sha1; +#endif +#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_256) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_224) + mbedtls_sha256_context sha256; +#endif +#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_512) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_384) + mbedtls_sha512_context sha512; +#endif +#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA3_224) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA3_256) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA3_384) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_SHA3_512) + mbedtls_sha3_context sha3; +#endif + } MBEDTLS_PRIVATE(ctx); +} mbedtls_psa_hash_operation_t; + +#define MBEDTLS_PSA_HASH_OPERATION_INIT { 0, { 0 } } + +/* + * Cipher multi-part operation definitions. + */ + +#include "mbedtls/cipher.h" + +#if defined(MBEDTLS_PSA_BUILTIN_ALG_STREAM_CIPHER) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_CTR) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_CFB) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_OFB) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_ECB_NO_PADDING) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_CBC_NO_PADDING) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_CBC_PKCS7) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_CCM_STAR_NO_TAG) +#define MBEDTLS_PSA_BUILTIN_CIPHER 1 +#endif + +typedef struct { + /* Context structure for the Mbed TLS cipher implementation. */ + psa_algorithm_t MBEDTLS_PRIVATE(alg); + uint8_t MBEDTLS_PRIVATE(iv_length); + uint8_t MBEDTLS_PRIVATE(block_length); + union { + unsigned int MBEDTLS_PRIVATE(dummy); + mbedtls_cipher_context_t MBEDTLS_PRIVATE(cipher); + } MBEDTLS_PRIVATE(ctx); +} mbedtls_psa_cipher_operation_t; + +#define MBEDTLS_PSA_CIPHER_OPERATION_INIT { 0, 0, 0, { 0 } } + +#endif /* PSA_CRYPTO_BUILTIN_PRIMITIVES_H */ diff --git a/include/psa/crypto_compat.h b/include/psa/crypto_compat.h new file mode 100644 index 0000000..f896fae --- /dev/null +++ b/include/psa/crypto_compat.h @@ -0,0 +1,153 @@ +/** + * \file psa/crypto_compat.h + * + * \brief PSA cryptography module: Backward compatibility aliases + * + * This header declares alternative names for macro and functions. + * New application code should not use these names. + * These names may be removed in a future version of Mbed TLS. + * + * \note This file may not be included directly. Applications must + * include psa/crypto.h. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_COMPAT_H +#define PSA_CRYPTO_COMPAT_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * To support both openless APIs and psa_open_key() temporarily, define + * psa_key_handle_t to be equal to mbedtls_svc_key_id_t. Do not mark the + * type and its utility macros and functions deprecated yet. This will be done + * in a subsequent phase. + */ +typedef mbedtls_svc_key_id_t psa_key_handle_t; + +#define PSA_KEY_HANDLE_INIT MBEDTLS_SVC_KEY_ID_INIT + +/** Check whether a handle is null. + * + * \param handle Handle + * + * \return Non-zero if the handle is null, zero otherwise. + */ +static inline int psa_key_handle_is_null(psa_key_handle_t handle) +{ + return mbedtls_svc_key_id_is_null(handle); +} + +/** Open a handle to an existing persistent key. + * + * Open a handle to a persistent key. A key is persistent if it was created + * with a lifetime other than #PSA_KEY_LIFETIME_VOLATILE. A persistent key + * always has a nonzero key identifier, set with psa_set_key_id() when + * creating the key. Implementations may provide additional pre-provisioned + * keys that can be opened with psa_open_key(). Such keys have an application + * key identifier in the vendor range, as documented in the description of + * #psa_key_id_t. + * + * The application must eventually close the handle with psa_close_key() or + * psa_destroy_key() to release associated resources. If the application dies + * without calling one of these functions, the implementation should perform + * the equivalent of a call to psa_close_key(). + * + * Some implementations permit an application to open the same key multiple + * times. If this is successful, each call to psa_open_key() will return a + * different key handle. + * + * \note This API is not part of the PSA Cryptography API Release 1.0.0 + * specification. It was defined in the 1.0 Beta 3 version of the + * specification but was removed in the 1.0.0 released version. This API is + * kept for the time being to not break applications relying on it. It is not + * deprecated yet but will be in the near future. + * + * \note Applications that rely on opening a key multiple times will not be + * portable to implementations that only permit a single key handle to be + * opened. See also :ref:\`key-handles\`. + * + * + * \param key The persistent identifier of the key. + * \param[out] handle On success, a handle to the key. + * + * \retval #PSA_SUCCESS + * Success. The application can now use the value of `*handle` + * to access the key. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY + * The implementation does not have sufficient resources to open the + * key. This can be due to reaching an implementation limit on the + * number of open keys, the number of open key handles, or available + * memory. + * \retval #PSA_ERROR_DOES_NOT_EXIST + * There is no persistent key with key identifier \p key. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p key is not a valid persistent key identifier. + * \retval #PSA_ERROR_NOT_PERMITTED + * The specified key exists, but the application does not have the + * permission to access it. Note that this specification does not + * define any way to create such a key, but it may be possible + * through implementation-specific means. + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_open_key(mbedtls_svc_key_id_t key, + psa_key_handle_t *handle); + +/** Close a key handle. + * + * If the handle designates a volatile key, this will destroy the key material + * and free all associated resources, just like psa_destroy_key(). + * + * If this is the last open handle to a persistent key, then closing the handle + * will free all resources associated with the key in volatile memory. The key + * data in persistent storage is not affected and can be opened again later + * with a call to psa_open_key(). + * + * Closing the key handle makes the handle invalid, and the key handle + * must not be used again by the application. + * + * \note This API is not part of the PSA Cryptography API Release 1.0.0 + * specification. It was defined in the 1.0 Beta 3 version of the + * specification but was removed in the 1.0.0 released version. This API is + * kept for the time being to not break applications relying on it. It is not + * deprecated yet but will be in the near future. + * + * \note If the key handle was used to set up an active + * :ref:\`multipart operation <multipart-operations>\`, then closing the + * key handle can cause the multipart operation to fail. Applications should + * maintain the key handle until after the multipart operation has finished. + * + * \param handle The key handle to close. + * If this is \c 0, do nothing and return \c PSA_SUCCESS. + * + * \retval #PSA_SUCCESS + * \p handle was a valid handle or \c 0. It is now closed. + * \retval #PSA_ERROR_INVALID_HANDLE + * \p handle is not a valid handle nor \c 0. + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_close_key(psa_key_handle_t handle); + +#ifdef __cplusplus +} +#endif + +#endif /* PSA_CRYPTO_COMPAT_H */ diff --git a/include/psa/crypto_config.h b/include/psa/crypto_config.h new file mode 100644 index 0000000..5bf00f4 --- /dev/null +++ b/include/psa/crypto_config.h @@ -0,0 +1,153 @@ +/** + * \file psa/crypto_config.h + * \brief PSA crypto configuration options (set of defines) + * + */ +#if defined(MBEDTLS_PSA_CRYPTO_CONFIG) +/** + * When #MBEDTLS_PSA_CRYPTO_CONFIG is enabled in mbedtls_config.h, + * this file determines which cryptographic mechanisms are enabled + * through the PSA Cryptography API (\c psa_xxx() functions). + * + * To enable a cryptographic mechanism, uncomment the definition of + * the corresponding \c PSA_WANT_xxx preprocessor symbol. + * To disable a cryptographic mechanism, comment out the definition of + * the corresponding \c PSA_WANT_xxx preprocessor symbol. + * The names of cryptographic mechanisms correspond to values + * defined in psa/crypto_values.h, with the prefix \c PSA_WANT_ instead + * of \c PSA_. + * + * Note that many cryptographic mechanisms involve two symbols: one for + * the key type (\c PSA_WANT_KEY_TYPE_xxx) and one for the algorithm + * (\c PSA_WANT_ALG_xxx). Mechanisms with additional parameters may involve + * additional symbols. + */ +#else +/** + * When \c MBEDTLS_PSA_CRYPTO_CONFIG is disabled in mbedtls_config.h, + * this file is not used, and cryptographic mechanisms are supported + * through the PSA API if and only if they are supported through the + * mbedtls_xxx API. + */ +#endif +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_CONFIG_H +#define PSA_CRYPTO_CONFIG_H + +/* + * CBC-MAC is not yet supported via the PSA API in Mbed TLS. + */ +//#define PSA_WANT_ALG_CBC_MAC 1 +#define PSA_WANT_ALG_CBC_NO_PADDING 1 +#define PSA_WANT_ALG_CBC_PKCS7 1 +#define PSA_WANT_ALG_CCM 1 +#define PSA_WANT_ALG_CCM_STAR_NO_TAG 1 +#define PSA_WANT_ALG_CMAC 1 +#define PSA_WANT_ALG_CFB 1 +#define PSA_WANT_ALG_CHACHA20_POLY1305 1 +#define PSA_WANT_ALG_CTR 1 +#define PSA_WANT_ALG_DETERMINISTIC_ECDSA 1 +#define PSA_WANT_ALG_ECB_NO_PADDING 1 +#define PSA_WANT_ALG_ECDH 1 +#define PSA_WANT_ALG_FFDH 1 +#define PSA_WANT_ALG_ECDSA 1 +#define PSA_WANT_ALG_JPAKE 1 +#define PSA_WANT_ALG_GCM 1 +#define PSA_WANT_ALG_HKDF 1 +#define PSA_WANT_ALG_HKDF_EXTRACT 1 +#define PSA_WANT_ALG_HKDF_EXPAND 1 +#define PSA_WANT_ALG_HMAC 1 +#define PSA_WANT_ALG_MD5 1 +#define PSA_WANT_ALG_OFB 1 +#define PSA_WANT_ALG_PBKDF2_HMAC 1 +#define PSA_WANT_ALG_PBKDF2_AES_CMAC_PRF_128 1 +#define PSA_WANT_ALG_RIPEMD160 1 +#define PSA_WANT_ALG_RSA_OAEP 1 +#define PSA_WANT_ALG_RSA_PKCS1V15_CRYPT 1 +#define PSA_WANT_ALG_RSA_PKCS1V15_SIGN 1 +#define PSA_WANT_ALG_RSA_PSS 1 +#define PSA_WANT_ALG_SHA_1 1 +#define PSA_WANT_ALG_SHA_224 1 +#define PSA_WANT_ALG_SHA_256 1 +#define PSA_WANT_ALG_SHA_384 1 +#define PSA_WANT_ALG_SHA_512 1 +#define PSA_WANT_ALG_SHA3_224 1 +#define PSA_WANT_ALG_SHA3_256 1 +#define PSA_WANT_ALG_SHA3_384 1 +#define PSA_WANT_ALG_SHA3_512 1 +#define PSA_WANT_ALG_STREAM_CIPHER 1 +#define PSA_WANT_ALG_TLS12_PRF 1 +#define PSA_WANT_ALG_TLS12_PSK_TO_MS 1 +#define PSA_WANT_ALG_TLS12_ECJPAKE_TO_PMS 1 + +/* XTS is not yet supported via the PSA API in Mbed TLS. + * Note: when adding support, also adjust include/mbedtls/config_psa.h */ +//#define PSA_WANT_ALG_XTS 1 + +#define PSA_WANT_ECC_BRAINPOOL_P_R1_256 1 +#define PSA_WANT_ECC_BRAINPOOL_P_R1_384 1 +#define PSA_WANT_ECC_BRAINPOOL_P_R1_512 1 +#define PSA_WANT_ECC_MONTGOMERY_255 1 +#define PSA_WANT_ECC_MONTGOMERY_448 1 +#define PSA_WANT_ECC_SECP_K1_192 1 +/* + * SECP224K1 is buggy via the PSA API in Mbed TLS + * (https://github.com/Mbed-TLS/mbedtls/issues/3541). Thus, do not enable it by + * default. + */ +//#define PSA_WANT_ECC_SECP_K1_224 1 +#define PSA_WANT_ECC_SECP_K1_256 1 +#define PSA_WANT_ECC_SECP_R1_192 1 +#define PSA_WANT_ECC_SECP_R1_224 1 +/* For secp256r1, consider enabling #MBEDTLS_PSA_P256M_DRIVER_ENABLED + * (see the description in mbedtls/mbedtls_config.h for details). */ +#define PSA_WANT_ECC_SECP_R1_256 1 +#define PSA_WANT_ECC_SECP_R1_384 1 +#define PSA_WANT_ECC_SECP_R1_521 1 + +#define PSA_WANT_KEY_TYPE_DERIVE 1 +#define PSA_WANT_KEY_TYPE_PASSWORD 1 +#define PSA_WANT_KEY_TYPE_PASSWORD_HASH 1 +#define PSA_WANT_KEY_TYPE_HMAC 1 +#define PSA_WANT_KEY_TYPE_AES 1 +#define PSA_WANT_KEY_TYPE_ARIA 1 +#define PSA_WANT_KEY_TYPE_CAMELLIA 1 +#define PSA_WANT_KEY_TYPE_CHACHA20 1 +#define PSA_WANT_KEY_TYPE_DES 1 +//#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR 1 /* Deprecated */ +#define PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY 1 +#define PSA_WANT_KEY_TYPE_DH_PUBLIC_KEY 1 +#define PSA_WANT_KEY_TYPE_RAW_DATA 1 +//#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR 1 /* Deprecated */ +#define PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY 1 + +/* + * The following symbols extend and deprecate the legacy + * PSA_WANT_KEY_TYPE_xxx_KEY_PAIR ones. They include the usage of that key in + * the name's suffix. "_USE" is the most generic and it can be used to describe + * a generic suport, whereas other ones add more features on top of that and + * they are more specific. + */ +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC 1 +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_IMPORT 1 +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_EXPORT 1 +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE 1 +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE 1 + +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_BASIC 1 +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_IMPORT 1 +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_EXPORT 1 +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE 1 +//#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_DERIVE 1 /* Not supported */ + +#define PSA_WANT_KEY_TYPE_DH_KEY_PAIR_BASIC 1 +#define PSA_WANT_KEY_TYPE_DH_KEY_PAIR_IMPORT 1 +#define PSA_WANT_KEY_TYPE_DH_KEY_PAIR_EXPORT 1 +#define PSA_WANT_KEY_TYPE_DH_KEY_PAIR_GENERATE 1 +//#define PSA_WANT_KEY_TYPE_DH_KEY_PAIR_DERIVE 1 /* Not supported */ + +#endif /* PSA_CRYPTO_CONFIG_H */ diff --git a/include/psa/crypto_driver_common.h b/include/psa/crypto_driver_common.h new file mode 100644 index 0000000..cc11d3b --- /dev/null +++ b/include/psa/crypto_driver_common.h @@ -0,0 +1,44 @@ +/** + * \file psa/crypto_driver_common.h + * \brief Definitions for all PSA crypto drivers + * + * This file contains common definitions shared by all PSA crypto drivers. + * Do not include it directly: instead, include the header file(s) for + * the type(s) of driver that you are implementing. For example, if + * you are writing a dynamically registered driver for a secure element, + * include `psa/crypto_se_driver.h`. + * + * This file is part of the PSA Crypto Driver Model, containing functions for + * driver developers to implement to enable hardware to be called in a + * standardized way by a PSA Cryptographic API implementation. The functions + * comprising the driver model, which driver authors implement, are not + * intended to be called by application developers. + */ + +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef PSA_CRYPTO_DRIVER_COMMON_H +#define PSA_CRYPTO_DRIVER_COMMON_H + +#include <stddef.h> +#include <stdint.h> + +/* Include type definitions (psa_status_t, psa_algorithm_t, + * psa_key_type_t, etc.) and macros to build and analyze values + * of these types. */ +#include "crypto_types.h" +#include "crypto_values.h" +/* Include size definitions which are used to size some arrays in operation + * structures. */ +#include <psa/crypto_sizes.h> + +/** For encrypt-decrypt functions, whether the operation is an encryption + * or a decryption. */ +typedef enum { + PSA_CRYPTO_DRIVER_DECRYPT, + PSA_CRYPTO_DRIVER_ENCRYPT +} psa_encrypt_or_decrypt_t; + +#endif /* PSA_CRYPTO_DRIVER_COMMON_H */ diff --git a/include/psa/crypto_driver_contexts_composites.h b/include/psa/crypto_driver_contexts_composites.h new file mode 100644 index 0000000..d717c51 --- /dev/null +++ b/include/psa/crypto_driver_contexts_composites.h @@ -0,0 +1,151 @@ +/* + * Declaration of context structures for use with the PSA driver wrapper + * interface. This file contains the context structures for 'composite' + * operations, i.e. those operations which need to make use of other operations + * from the primitives (crypto_driver_contexts_primitives.h) + * + * Warning: This file will be auto-generated in the future. + * + * \note This file may not be included directly. Applications must + * include psa/crypto.h. + * + * \note This header and its content are not part of the Mbed TLS API and + * applications must not depend on it. Its main purpose is to define the + * multi-part state objects of the PSA drivers included in the cryptographic + * library. The definitions of these objects are then used by crypto_struct.h + * to define the implementation-defined types of PSA multi-part state objects. + */ +/* Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_DRIVER_CONTEXTS_COMPOSITES_H +#define PSA_CRYPTO_DRIVER_CONTEXTS_COMPOSITES_H + +#include "psa/crypto_driver_common.h" + +/* Include the context structure definitions for the Mbed TLS software drivers */ +#include "psa/crypto_builtin_composites.h" + +/* Include the context structure definitions for those drivers that were + * declared during the autogeneration process. */ + +#if defined(MBEDTLS_TEST_LIBTESTDRIVER1) +#include <libtestdriver1/include/psa/crypto.h> +#endif + +#if defined(PSA_CRYPTO_DRIVER_TEST) +#if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ + defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_MAC) +typedef libtestdriver1_mbedtls_psa_mac_operation_t + mbedtls_transparent_test_driver_mac_operation_t; +typedef libtestdriver1_mbedtls_psa_mac_operation_t + mbedtls_opaque_test_driver_mac_operation_t; + +#define MBEDTLS_TRANSPARENT_TEST_DRIVER_MAC_OPERATION_INIT \ + LIBTESTDRIVER1_MBEDTLS_PSA_MAC_OPERATION_INIT +#define MBEDTLS_OPAQUE_TEST_DRIVER_MAC_OPERATION_INIT \ + LIBTESTDRIVER1_MBEDTLS_PSA_MAC_OPERATION_INIT + +#else +typedef mbedtls_psa_mac_operation_t + mbedtls_transparent_test_driver_mac_operation_t; +typedef mbedtls_psa_mac_operation_t + mbedtls_opaque_test_driver_mac_operation_t; + +#define MBEDTLS_TRANSPARENT_TEST_DRIVER_MAC_OPERATION_INIT \ + MBEDTLS_PSA_MAC_OPERATION_INIT +#define MBEDTLS_OPAQUE_TEST_DRIVER_MAC_OPERATION_INIT \ + MBEDTLS_PSA_MAC_OPERATION_INIT + +#endif /* MBEDTLS_TEST_LIBTESTDRIVER1 && LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_MAC */ + +#if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ + defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_AEAD) +typedef libtestdriver1_mbedtls_psa_aead_operation_t + mbedtls_transparent_test_driver_aead_operation_t; + +#define MBEDTLS_TRANSPARENT_TEST_DRIVER_AEAD_OPERATION_INIT \ + LIBTESTDRIVER1_MBEDTLS_PSA_AEAD_OPERATION_INIT +#else +typedef mbedtls_psa_aead_operation_t + mbedtls_transparent_test_driver_aead_operation_t; + +#define MBEDTLS_TRANSPARENT_TEST_DRIVER_AEAD_OPERATION_INIT \ + MBEDTLS_PSA_AEAD_OPERATION_INIT + +#endif /* MBEDTLS_TEST_LIBTESTDRIVER1 && LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_AEAD */ + +#if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ + defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_PAKE) + +typedef libtestdriver1_mbedtls_psa_pake_operation_t + mbedtls_transparent_test_driver_pake_operation_t; +typedef libtestdriver1_mbedtls_psa_pake_operation_t + mbedtls_opaque_test_driver_pake_operation_t; + +#define MBEDTLS_TRANSPARENT_TEST_DRIVER_PAKE_OPERATION_INIT \ + LIBTESTDRIVER1_MBEDTLS_PSA_PAKE_OPERATION_INIT +#define MBEDTLS_OPAQUE_TEST_DRIVER_PAKE_OPERATION_INIT \ + LIBTESTDRIVER1_MBEDTLS_PSA_PAKE_OPERATION_INIT + +#else +typedef mbedtls_psa_pake_operation_t + mbedtls_transparent_test_driver_pake_operation_t; +typedef mbedtls_psa_pake_operation_t + mbedtls_opaque_test_driver_pake_operation_t; + +#define MBEDTLS_TRANSPARENT_TEST_DRIVER_PAKE_OPERATION_INIT \ + MBEDTLS_PSA_PAKE_OPERATION_INIT +#define MBEDTLS_OPAQUE_TEST_DRIVER_PAKE_OPERATION_INIT \ + MBEDTLS_PSA_PAKE_OPERATION_INIT + +#endif /* MBEDTLS_TEST_LIBTESTDRIVER1 && LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_PAKE */ + +#endif /* PSA_CRYPTO_DRIVER_TEST */ + +/* Define the context to be used for an operation that is executed through the + * PSA Driver wrapper layer as the union of all possible driver's contexts. + * + * The union members are the driver's context structures, and the member names + * are formatted as `'drivername'_ctx`. This allows for procedural generation + * of both this file and the content of psa_crypto_driver_wrappers.h */ + +typedef union { + unsigned dummy; /* Make sure this union is always non-empty */ + mbedtls_psa_mac_operation_t mbedtls_ctx; +#if defined(PSA_CRYPTO_DRIVER_TEST) + mbedtls_transparent_test_driver_mac_operation_t transparent_test_driver_ctx; + mbedtls_opaque_test_driver_mac_operation_t opaque_test_driver_ctx; +#endif +} psa_driver_mac_context_t; + +typedef union { + unsigned dummy; /* Make sure this union is always non-empty */ + mbedtls_psa_aead_operation_t mbedtls_ctx; +#if defined(PSA_CRYPTO_DRIVER_TEST) + mbedtls_transparent_test_driver_aead_operation_t transparent_test_driver_ctx; +#endif +} psa_driver_aead_context_t; + +typedef union { + unsigned dummy; /* Make sure this union is always non-empty */ + mbedtls_psa_sign_hash_interruptible_operation_t mbedtls_ctx; +} psa_driver_sign_hash_interruptible_context_t; + +typedef union { + unsigned dummy; /* Make sure this union is always non-empty */ + mbedtls_psa_verify_hash_interruptible_operation_t mbedtls_ctx; +} psa_driver_verify_hash_interruptible_context_t; + +typedef union { + unsigned dummy; /* Make sure this union is always non-empty */ + mbedtls_psa_pake_operation_t mbedtls_ctx; +#if defined(PSA_CRYPTO_DRIVER_TEST) + mbedtls_transparent_test_driver_pake_operation_t transparent_test_driver_ctx; + mbedtls_opaque_test_driver_pake_operation_t opaque_test_driver_ctx; +#endif +} psa_driver_pake_context_t; + +#endif /* PSA_CRYPTO_DRIVER_CONTEXTS_COMPOSITES_H */ +/* End of automatically generated file. */ diff --git a/include/psa/crypto_driver_contexts_key_derivation.h b/include/psa/crypto_driver_contexts_key_derivation.h new file mode 100644 index 0000000..2119051 --- /dev/null +++ b/include/psa/crypto_driver_contexts_key_derivation.h @@ -0,0 +1,52 @@ +/* + * Declaration of context structures for use with the PSA driver wrapper + * interface. This file contains the context structures for key derivation + * operations. + * + * Warning: This file will be auto-generated in the future. + * + * \note This file may not be included directly. Applications must + * include psa/crypto.h. + * + * \note This header and its content are not part of the Mbed TLS API and + * applications must not depend on it. Its main purpose is to define the + * multi-part state objects of the PSA drivers included in the cryptographic + * library. The definitions of these objects are then used by crypto_struct.h + * to define the implementation-defined types of PSA multi-part state objects. + */ +/* Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_DRIVER_CONTEXTS_KEY_DERIVATION_H +#define PSA_CRYPTO_DRIVER_CONTEXTS_KEY_DERIVATION_H + +#include "psa/crypto_driver_common.h" + +/* Include the context structure definitions for the Mbed TLS software drivers */ +#include "psa/crypto_builtin_key_derivation.h" + +/* Include the context structure definitions for those drivers that were + * declared during the autogeneration process. */ + +typedef union { + unsigned dummy; /* Make sure this union is always non-empty */ +#if defined(MBEDTLS_PSA_BUILTIN_ALG_HKDF) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_HKDF_EXTRACT) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_HKDF_EXPAND) + psa_hkdf_key_derivation_t MBEDTLS_PRIVATE(hkdf); +#endif +#if defined(MBEDTLS_PSA_BUILTIN_ALG_TLS12_PRF) || \ + defined(MBEDTLS_PSA_BUILTIN_ALG_TLS12_PSK_TO_MS) + psa_tls12_prf_key_derivation_t MBEDTLS_PRIVATE(tls12_prf); +#endif +#if defined(MBEDTLS_PSA_BUILTIN_ALG_TLS12_ECJPAKE_TO_PMS) + psa_tls12_ecjpake_to_pms_t MBEDTLS_PRIVATE(tls12_ecjpake_to_pms); +#endif +#if defined(PSA_HAVE_SOFT_PBKDF2) + psa_pbkdf2_key_derivation_t MBEDTLS_PRIVATE(pbkdf2); +#endif +} psa_driver_key_derivation_context_t; + +#endif /* PSA_CRYPTO_DRIVER_CONTEXTS_KEY_DERIVATION_H */ +/* End of automatically generated file. */ diff --git a/include/psa/crypto_driver_contexts_primitives.h b/include/psa/crypto_driver_contexts_primitives.h new file mode 100644 index 0000000..c90a5fb --- /dev/null +++ b/include/psa/crypto_driver_contexts_primitives.h @@ -0,0 +1,105 @@ +/* + * Declaration of context structures for use with the PSA driver wrapper + * interface. This file contains the context structures for 'primitive' + * operations, i.e. those operations which do not rely on other contexts. + * + * Warning: This file will be auto-generated in the future. + * + * \note This file may not be included directly. Applications must + * include psa/crypto.h. + * + * \note This header and its content are not part of the Mbed TLS API and + * applications must not depend on it. Its main purpose is to define the + * multi-part state objects of the PSA drivers included in the cryptographic + * library. The definitions of these objects are then used by crypto_struct.h + * to define the implementation-defined types of PSA multi-part state objects. + */ +/* Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_DRIVER_CONTEXTS_PRIMITIVES_H +#define PSA_CRYPTO_DRIVER_CONTEXTS_PRIMITIVES_H + +#include "psa/crypto_driver_common.h" + +/* Include the context structure definitions for the Mbed TLS software drivers */ +#include "psa/crypto_builtin_primitives.h" + +/* Include the context structure definitions for those drivers that were + * declared during the autogeneration process. */ + +#if defined(MBEDTLS_TEST_LIBTESTDRIVER1) +#include <libtestdriver1/include/psa/crypto.h> +#endif + +#if defined(PSA_CRYPTO_DRIVER_TEST) + +#if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ + defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_CIPHER) +typedef libtestdriver1_mbedtls_psa_cipher_operation_t + mbedtls_transparent_test_driver_cipher_operation_t; + +#define MBEDTLS_TRANSPARENT_TEST_DRIVER_CIPHER_OPERATION_INIT \ + LIBTESTDRIVER1_MBEDTLS_PSA_CIPHER_OPERATION_INIT +#else +typedef mbedtls_psa_cipher_operation_t + mbedtls_transparent_test_driver_cipher_operation_t; + +#define MBEDTLS_TRANSPARENT_TEST_DRIVER_CIPHER_OPERATION_INIT \ + MBEDTLS_PSA_CIPHER_OPERATION_INIT +#endif /* MBEDTLS_TEST_LIBTESTDRIVER1 && + LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_CIPHER */ + +#if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ + defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_HASH) +typedef libtestdriver1_mbedtls_psa_hash_operation_t + mbedtls_transparent_test_driver_hash_operation_t; + +#define MBEDTLS_TRANSPARENT_TEST_DRIVER_HASH_OPERATION_INIT \ + LIBTESTDRIVER1_MBEDTLS_PSA_HASH_OPERATION_INIT +#else +typedef mbedtls_psa_hash_operation_t + mbedtls_transparent_test_driver_hash_operation_t; + +#define MBEDTLS_TRANSPARENT_TEST_DRIVER_HASH_OPERATION_INIT \ + MBEDTLS_PSA_HASH_OPERATION_INIT +#endif /* MBEDTLS_TEST_LIBTESTDRIVER1 && + LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_HASH */ + +typedef struct { + unsigned int initialised : 1; + mbedtls_transparent_test_driver_cipher_operation_t ctx; +} mbedtls_opaque_test_driver_cipher_operation_t; + +#define MBEDTLS_OPAQUE_TEST_DRIVER_CIPHER_OPERATION_INIT \ + { 0, MBEDTLS_TRANSPARENT_TEST_DRIVER_CIPHER_OPERATION_INIT } + +#endif /* PSA_CRYPTO_DRIVER_TEST */ + +/* Define the context to be used for an operation that is executed through the + * PSA Driver wrapper layer as the union of all possible driver's contexts. + * + * The union members are the driver's context structures, and the member names + * are formatted as `'drivername'_ctx`. This allows for procedural generation + * of both this file and the content of psa_crypto_driver_wrappers.h */ + +typedef union { + unsigned dummy; /* Make sure this union is always non-empty */ + mbedtls_psa_hash_operation_t mbedtls_ctx; +#if defined(PSA_CRYPTO_DRIVER_TEST) + mbedtls_transparent_test_driver_hash_operation_t test_driver_ctx; +#endif +} psa_driver_hash_context_t; + +typedef union { + unsigned dummy; /* Make sure this union is always non-empty */ + mbedtls_psa_cipher_operation_t mbedtls_ctx; +#if defined(PSA_CRYPTO_DRIVER_TEST) + mbedtls_transparent_test_driver_cipher_operation_t transparent_test_driver_ctx; + mbedtls_opaque_test_driver_cipher_operation_t opaque_test_driver_ctx; +#endif +} psa_driver_cipher_context_t; + +#endif /* PSA_CRYPTO_DRIVER_CONTEXTS_PRIMITIVES_H */ +/* End of automatically generated file. */ diff --git a/include/psa/crypto_extra.h b/include/psa/crypto_extra.h new file mode 100644 index 0000000..ef29b77 --- /dev/null +++ b/include/psa/crypto_extra.h @@ -0,0 +1,2064 @@ +/** + * \file psa/crypto_extra.h + * + * \brief PSA cryptography module: Mbed TLS vendor extensions + * + * \note This file may not be included directly. Applications must + * include psa/crypto.h. + * + * This file is reserved for vendor-specific definitions. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_EXTRA_H +#define PSA_CRYPTO_EXTRA_H +#include "mbedtls/private_access.h" + +#include "crypto_types.h" +#include "crypto_compat.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* UID for secure storage seed */ +#define PSA_CRYPTO_ITS_RANDOM_SEED_UID 0xFFFFFF52 + +/* See mbedtls_config.h for definition */ +#if !defined(MBEDTLS_PSA_KEY_SLOT_COUNT) +#define MBEDTLS_PSA_KEY_SLOT_COUNT 32 +#endif + +/** \addtogroup attributes + * @{ + */ + +/** \brief Declare the enrollment algorithm for a key. + * + * An operation on a key may indifferently use the algorithm set with + * psa_set_key_algorithm() or with this function. + * + * \param[out] attributes The attribute structure to write to. + * \param alg2 A second algorithm that the key may be used + * for, in addition to the algorithm set with + * psa_set_key_algorithm(). + * + * \warning Setting an enrollment algorithm is not recommended, because + * using the same key with different algorithms can allow some + * attacks based on arithmetic relations between different + * computations made with the same key, or can escalate harmless + * side channels into exploitable ones. Use this function only + * if it is necessary to support a protocol for which it has been + * verified that the usage of the key with multiple algorithms + * is safe. + */ +static inline void psa_set_key_enrollment_algorithm( + psa_key_attributes_t *attributes, + psa_algorithm_t alg2) +{ + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg2) = alg2; +} + +/** Retrieve the enrollment algorithm policy from key attributes. + * + * \param[in] attributes The key attribute structure to query. + * + * \return The enrollment algorithm stored in the attribute structure. + */ +static inline psa_algorithm_t psa_get_key_enrollment_algorithm( + const psa_key_attributes_t *attributes) +{ + return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg2); +} + +#if defined(MBEDTLS_PSA_CRYPTO_SE_C) + +/** Retrieve the slot number where a key is stored. + * + * A slot number is only defined for keys that are stored in a secure + * element. + * + * This information is only useful if the secure element is not entirely + * managed through the PSA Cryptography API. It is up to the secure + * element driver to decide how PSA slot numbers map to any other interface + * that the secure element may have. + * + * \param[in] attributes The key attribute structure to query. + * \param[out] slot_number On success, the slot number containing the key. + * + * \retval #PSA_SUCCESS + * The key is located in a secure element, and \p *slot_number + * indicates the slot number that contains it. + * \retval #PSA_ERROR_NOT_PERMITTED + * The caller is not permitted to query the slot number. + * Mbed TLS currently does not return this error. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The key is not located in a secure element. + */ +psa_status_t psa_get_key_slot_number( + const psa_key_attributes_t *attributes, + psa_key_slot_number_t *slot_number); + +/** Choose the slot number where a key is stored. + * + * This function declares a slot number in the specified attribute + * structure. + * + * A slot number is only meaningful for keys that are stored in a secure + * element. It is up to the secure element driver to decide how PSA slot + * numbers map to any other interface that the secure element may have. + * + * \note Setting a slot number in key attributes for a key creation can + * cause the following errors when creating the key: + * - #PSA_ERROR_NOT_SUPPORTED if the selected secure element does + * not support choosing a specific slot number. + * - #PSA_ERROR_NOT_PERMITTED if the caller is not permitted to + * choose slot numbers in general or to choose this specific slot. + * - #PSA_ERROR_INVALID_ARGUMENT if the chosen slot number is not + * valid in general or not valid for this specific key. + * - #PSA_ERROR_ALREADY_EXISTS if there is already a key in the + * selected slot. + * + * \param[out] attributes The attribute structure to write to. + * \param slot_number The slot number to set. + */ +static inline void psa_set_key_slot_number( + psa_key_attributes_t *attributes, + psa_key_slot_number_t slot_number) +{ + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(flags) |= MBEDTLS_PSA_KA_FLAG_HAS_SLOT_NUMBER; + attributes->MBEDTLS_PRIVATE(slot_number) = slot_number; +} + +/** Remove the slot number attribute from a key attribute structure. + * + * This function undoes the action of psa_set_key_slot_number(). + * + * \param[out] attributes The attribute structure to write to. + */ +static inline void psa_clear_key_slot_number( + psa_key_attributes_t *attributes) +{ + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(flags) &= + ~MBEDTLS_PSA_KA_FLAG_HAS_SLOT_NUMBER; +} + +/** Register a key that is already present in a secure element. + * + * The key must be located in a secure element designated by the + * lifetime field in \p attributes, in the slot set with + * psa_set_key_slot_number() in the attribute structure. + * This function makes the key available through the key identifier + * specified in \p attributes. + * + * \param[in] attributes The attributes of the existing key. + * + * \retval #PSA_SUCCESS + * The key was successfully registered. + * Note that depending on the design of the driver, this may or may + * not guarantee that a key actually exists in the designated slot + * and is compatible with the specified attributes. + * \retval #PSA_ERROR_ALREADY_EXISTS + * There is already a key with the identifier specified in + * \p attributes. + * \retval #PSA_ERROR_NOT_SUPPORTED + * The secure element driver for the specified lifetime does not + * support registering a key. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The identifier in \p attributes is invalid, namely the identifier is + * not in the user range, or + * \p attributes specifies a lifetime which is not located + * in a secure element, or no slot number is specified in \p attributes, + * or the specified slot number is not valid. + * \retval #PSA_ERROR_NOT_PERMITTED + * The caller is not authorized to register the specified key slot. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_STORAGE \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t mbedtls_psa_register_se_key( + const psa_key_attributes_t *attributes); + +#endif /* MBEDTLS_PSA_CRYPTO_SE_C */ + +/**@}*/ + +/** + * \brief Library deinitialization. + * + * This function clears all data associated with the PSA layer, + * including the whole key store. + * + * This is an Mbed TLS extension. + */ +void mbedtls_psa_crypto_free(void); + +/** \brief Statistics about + * resource consumption related to the PSA keystore. + * + * \note The content of this structure is not part of the stable API and ABI + * of Mbed TLS and may change arbitrarily from version to version. + */ +typedef struct mbedtls_psa_stats_s { + /** Number of slots containing key material for a volatile key. */ + size_t MBEDTLS_PRIVATE(volatile_slots); + /** Number of slots containing key material for a key which is in + * internal persistent storage. */ + size_t MBEDTLS_PRIVATE(persistent_slots); + /** Number of slots containing a reference to a key in a + * secure element. */ + size_t MBEDTLS_PRIVATE(external_slots); + /** Number of slots which are occupied, but do not contain + * key material yet. */ + size_t MBEDTLS_PRIVATE(half_filled_slots); + /** Number of slots that contain cache data. */ + size_t MBEDTLS_PRIVATE(cache_slots); + /** Number of slots that are not used for anything. */ + size_t MBEDTLS_PRIVATE(empty_slots); + /** Number of slots that are locked. */ + size_t MBEDTLS_PRIVATE(locked_slots); + /** Largest key id value among open keys in internal persistent storage. */ + psa_key_id_t MBEDTLS_PRIVATE(max_open_internal_key_id); + /** Largest key id value among open keys in secure elements. */ + psa_key_id_t MBEDTLS_PRIVATE(max_open_external_key_id); +} mbedtls_psa_stats_t; + +/** \brief Get statistics about + * resource consumption related to the PSA keystore. + * + * \note When Mbed TLS is built as part of a service, with isolation + * between the application and the keystore, the service may or + * may not expose this function. + */ +void mbedtls_psa_get_stats(mbedtls_psa_stats_t *stats); + +/** + * \brief Inject an initial entropy seed for the random generator into + * secure storage. + * + * This function injects data to be used as a seed for the random generator + * used by the PSA Crypto implementation. On devices that lack a trusted + * entropy source (preferably a hardware random number generator), + * the Mbed PSA Crypto implementation uses this value to seed its + * random generator. + * + * On devices without a trusted entropy source, this function must be + * called exactly once in the lifetime of the device. On devices with + * a trusted entropy source, calling this function is optional. + * In all cases, this function may only be called before calling any + * other function in the PSA Crypto API, including psa_crypto_init(). + * + * When this function returns successfully, it populates a file in + * persistent storage. Once the file has been created, this function + * can no longer succeed. + * + * If any error occurs, this function does not change the system state. + * You can call this function again after correcting the reason for the + * error if possible. + * + * \warning This function **can** fail! Callers MUST check the return status. + * + * \warning If you use this function, you should use it as part of a + * factory provisioning process. The value of the injected seed + * is critical to the security of the device. It must be + * *secret*, *unpredictable* and (statistically) *unique per device*. + * You should be generate it randomly using a cryptographically + * secure random generator seeded from trusted entropy sources. + * You should transmit it securely to the device and ensure + * that its value is not leaked or stored anywhere beyond the + * needs of transmitting it from the point of generation to + * the call of this function, and erase all copies of the value + * once this function returns. + * + * This is an Mbed TLS extension. + * + * \note This function is only available on the following platforms: + * * If the compile-time option MBEDTLS_PSA_INJECT_ENTROPY is enabled. + * Note that you must provide compatible implementations of + * mbedtls_nv_seed_read and mbedtls_nv_seed_write. + * * In a client-server integration of PSA Cryptography, on the client side, + * if the server supports this feature. + * \param[in] seed Buffer containing the seed value to inject. + * \param[in] seed_size Size of the \p seed buffer. + * The size of the seed in bytes must be greater + * or equal to both #MBEDTLS_ENTROPY_BLOCK_SIZE + * and the value of \c MBEDTLS_ENTROPY_MIN_PLATFORM + * in `library/entropy_poll.h` in the Mbed TLS source + * code. + * It must be less or equal to + * #MBEDTLS_ENTROPY_MAX_SEED_SIZE. + * + * \retval #PSA_SUCCESS + * The seed value was injected successfully. The random generator + * of the PSA Crypto implementation is now ready for use. + * You may now call psa_crypto_init() and use the PSA Crypto + * implementation. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p seed_size is out of range. + * \retval #PSA_ERROR_STORAGE_FAILURE + * There was a failure reading or writing from storage. + * \retval #PSA_ERROR_NOT_PERMITTED + * The library has already been initialized. It is no longer + * possible to call this function. + */ +psa_status_t mbedtls_psa_inject_entropy(const uint8_t *seed, + size_t seed_size); + +/** \addtogroup crypto_types + * @{ + */ + +/** DSA public key. + * + * The import and export format is the + * representation of the public key `y = g^x mod p` as a big-endian byte + * string. The length of the byte string is the length of the base prime `p` + * in bytes. + */ +#define PSA_KEY_TYPE_DSA_PUBLIC_KEY ((psa_key_type_t) 0x4002) + +/** DSA key pair (private and public key). + * + * The import and export format is the + * representation of the private key `x` as a big-endian byte string. The + * length of the byte string is the private key size in bytes (leading zeroes + * are not stripped). + * + * Deterministic DSA key derivation with psa_generate_derived_key follows + * FIPS 186-4 §B.1.2: interpret the byte string as integer + * in big-endian order. Discard it if it is not in the range + * [0, *N* - 2] where *N* is the boundary of the private key domain + * (the prime *p* for Diffie-Hellman, the subprime *q* for DSA, + * or the order of the curve's base point for ECC). + * Add 1 to the resulting integer and use this as the private key *x*. + * + */ +#define PSA_KEY_TYPE_DSA_KEY_PAIR ((psa_key_type_t) 0x7002) + +/** Whether a key type is a DSA key (pair or public-only). */ +#define PSA_KEY_TYPE_IS_DSA(type) \ + (PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(type) == PSA_KEY_TYPE_DSA_PUBLIC_KEY) + +#define PSA_ALG_DSA_BASE ((psa_algorithm_t) 0x06000400) +/** DSA signature with hashing. + * + * This is the signature scheme defined by FIPS 186-4, + * with a random per-message secret number (*k*). + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * This includes #PSA_ALG_ANY_HASH + * when specifying the algorithm in a usage policy. + * + * \return The corresponding DSA signature algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_DSA(hash_alg) \ + (PSA_ALG_DSA_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) +#define PSA_ALG_DETERMINISTIC_DSA_BASE ((psa_algorithm_t) 0x06000500) +#define PSA_ALG_DSA_DETERMINISTIC_FLAG PSA_ALG_ECDSA_DETERMINISTIC_FLAG +/** Deterministic DSA signature with hashing. + * + * This is the deterministic variant defined by RFC 6979 of + * the signature scheme defined by FIPS 186-4. + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * This includes #PSA_ALG_ANY_HASH + * when specifying the algorithm in a usage policy. + * + * \return The corresponding DSA signature algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_DETERMINISTIC_DSA(hash_alg) \ + (PSA_ALG_DETERMINISTIC_DSA_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) +#define PSA_ALG_IS_DSA(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK & ~PSA_ALG_DSA_DETERMINISTIC_FLAG) == \ + PSA_ALG_DSA_BASE) +#define PSA_ALG_DSA_IS_DETERMINISTIC(alg) \ + (((alg) & PSA_ALG_DSA_DETERMINISTIC_FLAG) != 0) +#define PSA_ALG_IS_DETERMINISTIC_DSA(alg) \ + (PSA_ALG_IS_DSA(alg) && PSA_ALG_DSA_IS_DETERMINISTIC(alg)) +#define PSA_ALG_IS_RANDOMIZED_DSA(alg) \ + (PSA_ALG_IS_DSA(alg) && !PSA_ALG_DSA_IS_DETERMINISTIC(alg)) + + +/* We need to expand the sample definition of this macro from + * the API definition. */ +#undef PSA_ALG_IS_VENDOR_HASH_AND_SIGN +#define PSA_ALG_IS_VENDOR_HASH_AND_SIGN(alg) \ + PSA_ALG_IS_DSA(alg) + +/**@}*/ + +/** \addtogroup attributes + * @{ + */ + +/** Custom Diffie-Hellman group. + * + * For keys of type #PSA_KEY_TYPE_DH_PUBLIC_KEY(#PSA_DH_FAMILY_CUSTOM) or + * #PSA_KEY_TYPE_DH_KEY_PAIR(#PSA_DH_FAMILY_CUSTOM), the group data comes + * from domain parameters set by psa_set_key_domain_parameters(). + */ +#define PSA_DH_FAMILY_CUSTOM ((psa_dh_family_t) 0x7e) + +/** PAKE operation stages. */ +#define PSA_PAKE_OPERATION_STAGE_SETUP 0 +#define PSA_PAKE_OPERATION_STAGE_COLLECT_INPUTS 1 +#define PSA_PAKE_OPERATION_STAGE_COMPUTATION 2 + +/** + * \brief Set domain parameters for a key. + * + * Some key types require additional domain parameters in addition to + * the key type identifier and the key size. Use this function instead + * of psa_set_key_type() when you need to specify domain parameters. + * + * The format for the required domain parameters varies based on the key type. + * + * - For RSA keys (#PSA_KEY_TYPE_RSA_PUBLIC_KEY or #PSA_KEY_TYPE_RSA_KEY_PAIR), + * the domain parameter data consists of the public exponent, + * represented as a big-endian integer with no leading zeros. + * This information is used when generating an RSA key pair. + * When importing a key, the public exponent is read from the imported + * key data and the exponent recorded in the attribute structure is ignored. + * As an exception, the public exponent 65537 is represented by an empty + * byte string. + * - For DSA keys (#PSA_KEY_TYPE_DSA_PUBLIC_KEY or #PSA_KEY_TYPE_DSA_KEY_PAIR), + * the `Dss-Params` format as defined by RFC 3279 §2.3.2. + * ``` + * Dss-Params ::= SEQUENCE { + * p INTEGER, + * q INTEGER, + * g INTEGER + * } + * ``` + * - For Diffie-Hellman key exchange keys + * (#PSA_KEY_TYPE_DH_PUBLIC_KEY(#PSA_DH_FAMILY_CUSTOM) or + * #PSA_KEY_TYPE_DH_KEY_PAIR(#PSA_DH_FAMILY_CUSTOM)), the + * `DomainParameters` format as defined by RFC 3279 §2.3.3. + * ``` + * DomainParameters ::= SEQUENCE { + * p INTEGER, -- odd prime, p=jq +1 + * g INTEGER, -- generator, g + * q INTEGER, -- factor of p-1 + * j INTEGER OPTIONAL, -- subgroup factor + * validationParams ValidationParams OPTIONAL + * } + * ValidationParams ::= SEQUENCE { + * seed BIT STRING, + * pgenCounter INTEGER + * } + * ``` + * + * \note This function may allocate memory or other resources. + * Once you have called this function on an attribute structure, + * you must call psa_reset_key_attributes() to free these resources. + * + * \note This is an experimental extension to the interface. It may change + * in future versions of the library. + * + * \param[in,out] attributes Attribute structure where the specified domain + * parameters will be stored. + * If this function fails, the content of + * \p attributes is not modified. + * \param type Key type (a \c PSA_KEY_TYPE_XXX value). + * \param[in] data Buffer containing the key domain parameters. + * The content of this buffer is interpreted + * according to \p type as described above. + * \param data_length Size of the \p data buffer in bytes. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + */ +psa_status_t psa_set_key_domain_parameters(psa_key_attributes_t *attributes, + psa_key_type_t type, + const uint8_t *data, + size_t data_length); + +/** + * \brief Get domain parameters for a key. + * + * Get the domain parameters for a key with this function, if any. The format + * of the domain parameters written to \p data is specified in the + * documentation for psa_set_key_domain_parameters(). + * + * \note This is an experimental extension to the interface. It may change + * in future versions of the library. + * + * \param[in] attributes The key attribute structure to query. + * \param[out] data On success, the key domain parameters. + * \param data_size Size of the \p data buffer in bytes. + * The buffer is guaranteed to be large + * enough if its size in bytes is at least + * the value given by + * PSA_KEY_DOMAIN_PARAMETERS_SIZE(). + * \param[out] data_length On success, the number of bytes + * that make up the key domain parameters data. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_BUFFER_TOO_SMALL \emptydescription + */ +psa_status_t psa_get_key_domain_parameters( + const psa_key_attributes_t *attributes, + uint8_t *data, + size_t data_size, + size_t *data_length); + +/** Safe output buffer size for psa_get_key_domain_parameters(). + * + * This macro returns a compile-time constant if its arguments are + * compile-time constants. + * + * \warning This function may call its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * \note This is an experimental extension to the interface. It may change + * in future versions of the library. + * + * \param key_type A supported key type. + * \param key_bits The size of the key in bits. + * + * \return If the parameters are valid and supported, return + * a buffer size in bytes that guarantees that + * psa_get_key_domain_parameters() will not fail with + * #PSA_ERROR_BUFFER_TOO_SMALL. + * If the parameters are a valid combination that is not supported + * by the implementation, this macro shall return either a + * sensible size or 0. + * If the parameters are not valid, the + * return value is unspecified. + */ +#define PSA_KEY_DOMAIN_PARAMETERS_SIZE(key_type, key_bits) \ + (PSA_KEY_TYPE_IS_RSA(key_type) ? sizeof(int) : \ + PSA_KEY_TYPE_IS_DH(key_type) ? PSA_DH_KEY_DOMAIN_PARAMETERS_SIZE(key_bits) : \ + PSA_KEY_TYPE_IS_DSA(key_type) ? PSA_DSA_KEY_DOMAIN_PARAMETERS_SIZE(key_bits) : \ + 0) +#define PSA_DH_KEY_DOMAIN_PARAMETERS_SIZE(key_bits) \ + (4 + (PSA_BITS_TO_BYTES(key_bits) + 5) * 3 /*without optional parts*/) +#define PSA_DSA_KEY_DOMAIN_PARAMETERS_SIZE(key_bits) \ + (4 + (PSA_BITS_TO_BYTES(key_bits) + 5) * 2 /*p, g*/ + 34 /*q*/) + +/**@}*/ + +/** \defgroup psa_tls_helpers TLS helper functions + * @{ + */ +#if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY) +#include <mbedtls/ecp.h> + +/** Convert an ECC curve identifier from the Mbed TLS encoding to PSA. + * + * \note This function is provided solely for the convenience of + * Mbed TLS and may be removed at any time without notice. + * + * \param grpid An Mbed TLS elliptic curve identifier + * (`MBEDTLS_ECP_DP_xxx`). + * \param[out] bits On success, the bit size of the curve. + * + * \return The corresponding PSA elliptic curve identifier + * (`PSA_ECC_FAMILY_xxx`). + * \return \c 0 on failure (\p grpid is not recognized). + */ +psa_ecc_family_t mbedtls_ecc_group_to_psa(mbedtls_ecp_group_id grpid, + size_t *bits); + +/** Convert an ECC curve identifier from the PSA encoding to Mbed TLS. + * + * \note This function is provided solely for the convenience of + * Mbed TLS and may be removed at any time without notice. + * + * \param curve A PSA elliptic curve identifier + * (`PSA_ECC_FAMILY_xxx`). + * \param bits The bit-length of a private key on \p curve. + * \param bits_is_sloppy If true, \p bits may be the bit-length rounded up + * to the nearest multiple of 8. This allows the caller + * to infer the exact curve from the length of a key + * which is supplied as a byte string. + * + * \return The corresponding Mbed TLS elliptic curve identifier + * (`MBEDTLS_ECP_DP_xxx`). + * \return #MBEDTLS_ECP_DP_NONE if \c curve is not recognized. + * \return #MBEDTLS_ECP_DP_NONE if \p bits is not + * correct for \p curve. + */ +mbedtls_ecp_group_id mbedtls_ecc_group_of_psa(psa_ecc_family_t curve, + size_t bits, + int bits_is_sloppy); +#endif /* PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY */ + +/**@}*/ + +/** \defgroup psa_external_rng External random generator + * @{ + */ + +#if defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) +/** External random generator function, implemented by the platform. + * + * When the compile-time option #MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG is enabled, + * this function replaces Mbed TLS's entropy and DRBG modules for all + * random generation triggered via PSA crypto interfaces. + * + * \note This random generator must deliver random numbers with cryptographic + * quality and high performance. It must supply unpredictable numbers + * with a uniform distribution. The implementation of this function + * is responsible for ensuring that the random generator is seeded + * with sufficient entropy. If you have a hardware TRNG which is slow + * or delivers non-uniform output, declare it as an entropy source + * with mbedtls_entropy_add_source() instead of enabling this option. + * + * \param[in,out] context Pointer to the random generator context. + * This is all-bits-zero on the first call + * and preserved between successive calls. + * \param[out] output Output buffer. On success, this buffer + * contains random data with a uniform + * distribution. + * \param output_size The size of the \p output buffer in bytes. + * \param[out] output_length On success, set this value to \p output_size. + * + * \retval #PSA_SUCCESS + * Success. The output buffer contains \p output_size bytes of + * cryptographic-quality random data, and \c *output_length is + * set to \p output_size. + * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY + * The random generator requires extra entropy and there is no + * way to obtain entropy under current environment conditions. + * This error should not happen under normal circumstances since + * this function is responsible for obtaining as much entropy as + * it needs. However implementations of this function may return + * #PSA_ERROR_INSUFFICIENT_ENTROPY if there is no way to obtain + * entropy without blocking indefinitely. + * \retval #PSA_ERROR_HARDWARE_FAILURE + * A failure of the random generator hardware that isn't covered + * by #PSA_ERROR_INSUFFICIENT_ENTROPY. + */ +psa_status_t mbedtls_psa_external_get_random( + mbedtls_psa_external_random_context_t *context, + uint8_t *output, size_t output_size, size_t *output_length); +#endif /* MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG */ + +/**@}*/ + +/** \defgroup psa_builtin_keys Built-in keys + * @{ + */ + +/** The minimum value for a key identifier that is built into the + * implementation. + * + * The range of key identifiers from #MBEDTLS_PSA_KEY_ID_BUILTIN_MIN + * to #MBEDTLS_PSA_KEY_ID_BUILTIN_MAX within the range from + * #PSA_KEY_ID_VENDOR_MIN and #PSA_KEY_ID_VENDOR_MAX and must not intersect + * with any other set of implementation-chosen key identifiers. + * + * This value is part of the library's ABI since changing it would invalidate + * the values of built-in key identifiers in applications. + */ +#define MBEDTLS_PSA_KEY_ID_BUILTIN_MIN ((psa_key_id_t) 0x7fff0000) + +/** The maximum value for a key identifier that is built into the + * implementation. + * + * See #MBEDTLS_PSA_KEY_ID_BUILTIN_MIN for more information. + */ +#define MBEDTLS_PSA_KEY_ID_BUILTIN_MAX ((psa_key_id_t) 0x7fffefff) + +/** A slot number identifying a key in a driver. + * + * Values of this type are used to identify built-in keys. + */ +typedef uint64_t psa_drv_slot_number_t; + +#if defined(MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS) +/** Test whether a key identifier belongs to the builtin key range. + * + * \param key_id Key identifier to test. + * + * \retval 1 + * The key identifier is a builtin key identifier. + * \retval 0 + * The key identifier is not a builtin key identifier. + */ +static inline int psa_key_id_is_builtin(psa_key_id_t key_id) +{ + return (key_id >= MBEDTLS_PSA_KEY_ID_BUILTIN_MIN) && + (key_id <= MBEDTLS_PSA_KEY_ID_BUILTIN_MAX); +} + +/** Platform function to obtain the location and slot number of a built-in key. + * + * An application-specific implementation of this function must be provided if + * #MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS is enabled. This would typically be provided + * as part of a platform's system image. + * + * #MBEDTLS_SVC_KEY_ID_GET_KEY_ID(\p key_id) needs to be in the range from + * #MBEDTLS_PSA_KEY_ID_BUILTIN_MIN to #MBEDTLS_PSA_KEY_ID_BUILTIN_MAX. + * + * In a multi-application configuration + * (\c MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER is defined), + * this function should check that #MBEDTLS_SVC_KEY_ID_GET_OWNER_ID(\p key_id) + * is allowed to use the given key. + * + * \param key_id The key ID for which to retrieve the + * location and slot attributes. + * \param[out] lifetime On success, the lifetime associated with the key + * corresponding to \p key_id. Lifetime is a + * combination of which driver contains the key, + * and with what persistence level the key is + * intended to be used. If the platform + * implementation does not contain specific + * information about the intended key persistence + * level, the persistence level may be reported as + * #PSA_KEY_PERSISTENCE_DEFAULT. + * \param[out] slot_number On success, the slot number known to the driver + * registered at the lifetime location reported + * through \p lifetime which corresponds to the + * requested built-in key. + * + * \retval #PSA_SUCCESS + * The requested key identifier designates a built-in key. + * In a multi-application configuration, the requested owner + * is allowed to access it. + * \retval #PSA_ERROR_DOES_NOT_EXIST + * The requested key identifier is not a built-in key which is known + * to this function. If a key exists in the key storage with this + * identifier, the data from the storage will be used. + * \return (any other error) + * Any other error is propagated to the function that requested the key. + * Common errors include: + * - #PSA_ERROR_NOT_PERMITTED: the key exists but the requested owner + * is not allowed to access it. + */ +psa_status_t mbedtls_psa_platform_get_builtin_key( + mbedtls_svc_key_id_t key_id, + psa_key_lifetime_t *lifetime, + psa_drv_slot_number_t *slot_number); +#endif /* MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS */ + +/** @} */ + +/** \addtogroup crypto_types + * @{ + */ + +#define PSA_ALG_CATEGORY_PAKE ((psa_algorithm_t) 0x0a000000) + +/** Whether the specified algorithm is a password-authenticated key exchange. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is a password-authenticated key exchange (PAKE) + * algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_PAKE(alg) \ + (((alg) & PSA_ALG_CATEGORY_MASK) == PSA_ALG_CATEGORY_PAKE) + +/** The Password-authenticated key exchange by juggling (J-PAKE) algorithm. + * + * This is J-PAKE as defined by RFC 8236, instantiated with the following + * parameters: + * + * - The group can be either an elliptic curve or defined over a finite field. + * - Schnorr NIZK proof as defined by RFC 8235 and using the same group as the + * J-PAKE algorithm. + * - A cryptographic hash function. + * + * To select these parameters and set up the cipher suite, call these functions + * in any order: + * + * \code + * psa_pake_cs_set_algorithm(cipher_suite, PSA_ALG_JPAKE); + * psa_pake_cs_set_primitive(cipher_suite, + * PSA_PAKE_PRIMITIVE(type, family, bits)); + * psa_pake_cs_set_hash(cipher_suite, hash); + * \endcode + * + * For more information on how to set a specific curve or field, refer to the + * documentation of the individual \c PSA_PAKE_PRIMITIVE_TYPE_XXX constants. + * + * After initializing a J-PAKE operation, call + * + * \code + * psa_pake_setup(operation, cipher_suite); + * psa_pake_set_user(operation, ...); + * psa_pake_set_peer(operation, ...); + * psa_pake_set_password_key(operation, ...); + * \endcode + * + * The password is provided as a key. This can be the password text itself, + * in an agreed character encoding, or some value derived from the password + * as required by a higher level protocol. + * + * (The implementation converts the key material to a number as described in + * Section 2.3.8 of _SEC 1: Elliptic Curve Cryptography_ + * (https://www.secg.org/sec1-v2.pdf), before reducing it modulo \c q. Here + * \c q is order of the group defined by the primitive set in the cipher suite. + * The \c psa_pake_set_password_key() function returns an error if the result + * of the reduction is 0.) + * + * The key exchange flow for J-PAKE is as follows: + * -# To get the first round data that needs to be sent to the peer, call + * \code + * // Get g1 + * psa_pake_output(operation, #PSA_PAKE_STEP_KEY_SHARE, ...); + * // Get the ZKP public key for x1 + * psa_pake_output(operation, #PSA_PAKE_STEP_ZK_PUBLIC, ...); + * // Get the ZKP proof for x1 + * psa_pake_output(operation, #PSA_PAKE_STEP_ZK_PROOF, ...); + * // Get g2 + * psa_pake_output(operation, #PSA_PAKE_STEP_KEY_SHARE, ...); + * // Get the ZKP public key for x2 + * psa_pake_output(operation, #PSA_PAKE_STEP_ZK_PUBLIC, ...); + * // Get the ZKP proof for x2 + * psa_pake_output(operation, #PSA_PAKE_STEP_ZK_PROOF, ...); + * \endcode + * -# To provide the first round data received from the peer to the operation, + * call + * \code + * // Set g3 + * psa_pake_input(operation, #PSA_PAKE_STEP_KEY_SHARE, ...); + * // Set the ZKP public key for x3 + * psa_pake_input(operation, #PSA_PAKE_STEP_ZK_PUBLIC, ...); + * // Set the ZKP proof for x3 + * psa_pake_input(operation, #PSA_PAKE_STEP_ZK_PROOF, ...); + * // Set g4 + * psa_pake_input(operation, #PSA_PAKE_STEP_KEY_SHARE, ...); + * // Set the ZKP public key for x4 + * psa_pake_input(operation, #PSA_PAKE_STEP_ZK_PUBLIC, ...); + * // Set the ZKP proof for x4 + * psa_pake_input(operation, #PSA_PAKE_STEP_ZK_PROOF, ...); + * \endcode + * -# To get the second round data that needs to be sent to the peer, call + * \code + * // Get A + * psa_pake_output(operation, #PSA_PAKE_STEP_KEY_SHARE, ...); + * // Get ZKP public key for x2*s + * psa_pake_output(operation, #PSA_PAKE_STEP_ZK_PUBLIC, ...); + * // Get ZKP proof for x2*s + * psa_pake_output(operation, #PSA_PAKE_STEP_ZK_PROOF, ...); + * \endcode + * -# To provide the second round data received from the peer to the operation, + * call + * \code + * // Set B + * psa_pake_input(operation, #PSA_PAKE_STEP_KEY_SHARE, ...); + * // Set ZKP public key for x4*s + * psa_pake_input(operation, #PSA_PAKE_STEP_ZK_PUBLIC, ...); + * // Set ZKP proof for x4*s + * psa_pake_input(operation, #PSA_PAKE_STEP_ZK_PROOF, ...); + * \endcode + * -# To access the shared secret call + * \code + * // Get Ka=Kb=K + * psa_pake_get_implicit_key() + * \endcode + * + * For more information consult the documentation of the individual + * \c PSA_PAKE_STEP_XXX constants. + * + * At this point there is a cryptographic guarantee that only the authenticated + * party who used the same password is able to compute the key. But there is no + * guarantee that the peer is the party it claims to be and was able to do so. + * + * That is, the authentication is only implicit (the peer is not authenticated + * at this point, and no action should be taken that assume that they are - like + * for example accessing restricted files). + * + * To make the authentication explicit there are various methods, see Section 5 + * of RFC 8236 for two examples. + * + */ +#define PSA_ALG_JPAKE ((psa_algorithm_t) 0x0a000100) + +/** @} */ + +/** \defgroup pake Password-authenticated key exchange (PAKE) + * + * This is a proposed PAKE interface for the PSA Crypto API. It is not part of + * the official PSA Crypto API yet. + * + * \note The content of this section is not part of the stable API and ABI + * of Mbed TLS and may change arbitrarily from version to version. + * Same holds for the corresponding macros #PSA_ALG_CATEGORY_PAKE and + * #PSA_ALG_JPAKE. + * @{ + */ + +/** \brief Encoding of the application role of PAKE + * + * Encodes the application's role in the algorithm is being executed. For more + * information see the documentation of individual \c PSA_PAKE_ROLE_XXX + * constants. + */ +typedef uint8_t psa_pake_role_t; + +/** Encoding of input and output indicators for PAKE. + * + * Some PAKE algorithms need to exchange more data than just a single key share. + * This type is for encoding additional input and output data for such + * algorithms. + */ +typedef uint8_t psa_pake_step_t; + +/** Encoding of the type of the PAKE's primitive. + * + * Values defined by this standard will never be in the range 0x80-0xff. + * Vendors who define additional types must use an encoding in this range. + * + * For more information see the documentation of individual + * \c PSA_PAKE_PRIMITIVE_TYPE_XXX constants. + */ +typedef uint8_t psa_pake_primitive_type_t; + +/** \brief Encoding of the family of the primitive associated with the PAKE. + * + * For more information see the documentation of individual + * \c PSA_PAKE_PRIMITIVE_TYPE_XXX constants. + */ +typedef uint8_t psa_pake_family_t; + +/** \brief Encoding of the primitive associated with the PAKE. + * + * For more information see the documentation of the #PSA_PAKE_PRIMITIVE macro. + */ +typedef uint32_t psa_pake_primitive_t; + +/** A value to indicate no role in a PAKE algorithm. + * This value can be used in a call to psa_pake_set_role() for symmetric PAKE + * algorithms which do not assign roles. + */ +#define PSA_PAKE_ROLE_NONE ((psa_pake_role_t) 0x00) + +/** The first peer in a balanced PAKE. + * + * Although balanced PAKE algorithms are symmetric, some of them needs an + * ordering of peers for the transcript calculations. If the algorithm does not + * need this, both #PSA_PAKE_ROLE_FIRST and #PSA_PAKE_ROLE_SECOND are + * accepted. + */ +#define PSA_PAKE_ROLE_FIRST ((psa_pake_role_t) 0x01) + +/** The second peer in a balanced PAKE. + * + * Although balanced PAKE algorithms are symmetric, some of them needs an + * ordering of peers for the transcript calculations. If the algorithm does not + * need this, either #PSA_PAKE_ROLE_FIRST or #PSA_PAKE_ROLE_SECOND are + * accepted. + */ +#define PSA_PAKE_ROLE_SECOND ((psa_pake_role_t) 0x02) + +/** The client in an augmented PAKE. + * + * Augmented PAKE algorithms need to differentiate between client and server. + */ +#define PSA_PAKE_ROLE_CLIENT ((psa_pake_role_t) 0x11) + +/** The server in an augmented PAKE. + * + * Augmented PAKE algorithms need to differentiate between client and server. + */ +#define PSA_PAKE_ROLE_SERVER ((psa_pake_role_t) 0x12) + +/** The PAKE primitive type indicating the use of elliptic curves. + * + * The values of the \c family and \c bits fields of the cipher suite identify a + * specific elliptic curve, using the same mapping that is used for ECC + * (::psa_ecc_family_t) keys. + * + * (Here \c family means the value returned by psa_pake_cs_get_family() and + * \c bits means the value returned by psa_pake_cs_get_bits().) + * + * Input and output during the operation can involve group elements and scalar + * values: + * -# The format for group elements is the same as for public keys on the + * specific curve would be. For more information, consult the documentation of + * psa_export_public_key(). + * -# The format for scalars is the same as for private keys on the specific + * curve would be. For more information, consult the documentation of + * psa_export_key(). + */ +#define PSA_PAKE_PRIMITIVE_TYPE_ECC ((psa_pake_primitive_type_t) 0x01) + +/** The PAKE primitive type indicating the use of Diffie-Hellman groups. + * + * The values of the \c family and \c bits fields of the cipher suite identify + * a specific Diffie-Hellman group, using the same mapping that is used for + * Diffie-Hellman (::psa_dh_family_t) keys. + * + * (Here \c family means the value returned by psa_pake_cs_get_family() and + * \c bits means the value returned by psa_pake_cs_get_bits().) + * + * Input and output during the operation can involve group elements and scalar + * values: + * -# The format for group elements is the same as for public keys on the + * specific group would be. For more information, consult the documentation of + * psa_export_public_key(). + * -# The format for scalars is the same as for private keys on the specific + * group would be. For more information, consult the documentation of + * psa_export_key(). + */ +#define PSA_PAKE_PRIMITIVE_TYPE_DH ((psa_pake_primitive_type_t) 0x02) + +/** Construct a PAKE primitive from type, family and bit-size. + * + * \param pake_type The type of the primitive + * (value of type ::psa_pake_primitive_type_t). + * \param pake_family The family of the primitive + * (the type and interpretation of this parameter depends + * on \p pake_type, for more information consult the + * documentation of individual ::psa_pake_primitive_type_t + * constants). + * \param pake_bits The bit-size of the primitive + * (Value of type \c size_t. The interpretation + * of this parameter depends on \p pake_family, for more + * information consult the documentation of individual + * ::psa_pake_primitive_type_t constants). + * + * \return The constructed primitive value of type ::psa_pake_primitive_t. + * Return 0 if the requested primitive can't be encoded as + * ::psa_pake_primitive_t. + */ +#define PSA_PAKE_PRIMITIVE(pake_type, pake_family, pake_bits) \ + ((pake_bits & 0xFFFF) != pake_bits) ? 0 : \ + ((psa_pake_primitive_t) (((pake_type) << 24 | \ + (pake_family) << 16) | (pake_bits))) + +/** The key share being sent to or received from the peer. + * + * The format for both input and output at this step is the same as for public + * keys on the group determined by the primitive (::psa_pake_primitive_t) would + * be. + * + * For more information on the format, consult the documentation of + * psa_export_public_key(). + * + * For information regarding how the group is determined, consult the + * documentation #PSA_PAKE_PRIMITIVE. + */ +#define PSA_PAKE_STEP_KEY_SHARE ((psa_pake_step_t) 0x01) + +/** A Schnorr NIZKP public key. + * + * This is the ephemeral public key in the Schnorr Non-Interactive + * Zero-Knowledge Proof (the value denoted by the letter 'V' in RFC 8235). + * + * The format for both input and output at this step is the same as for public + * keys on the group determined by the primitive (::psa_pake_primitive_t) would + * be. + * + * For more information on the format, consult the documentation of + * psa_export_public_key(). + * + * For information regarding how the group is determined, consult the + * documentation #PSA_PAKE_PRIMITIVE. + */ +#define PSA_PAKE_STEP_ZK_PUBLIC ((psa_pake_step_t) 0x02) + +/** A Schnorr NIZKP proof. + * + * This is the proof in the Schnorr Non-Interactive Zero-Knowledge Proof (the + * value denoted by the letter 'r' in RFC 8235). + * + * Both for input and output, the value at this step is an integer less than + * the order of the group selected in the cipher suite. The format depends on + * the group as well: + * + * - For Montgomery curves, the encoding is little endian. + * - For everything else the encoding is big endian (see Section 2.3.8 of + * _SEC 1: Elliptic Curve Cryptography_ at https://www.secg.org/sec1-v2.pdf). + * + * In both cases leading zeroes are allowed as long as the length in bytes does + * not exceed the byte length of the group order. + * + * For information regarding how the group is determined, consult the + * documentation #PSA_PAKE_PRIMITIVE. + */ +#define PSA_PAKE_STEP_ZK_PROOF ((psa_pake_step_t) 0x03) + +/** The type of the data structure for PAKE cipher suites. + * + * This is an implementation-defined \c struct. Applications should not + * make any assumptions about the content of this structure. + * Implementation details can change in future versions without notice. + */ +typedef struct psa_pake_cipher_suite_s psa_pake_cipher_suite_t; + +/** Return an initial value for a PAKE cipher suite object. + */ +static psa_pake_cipher_suite_t psa_pake_cipher_suite_init(void); + +/** Retrieve the PAKE algorithm from a PAKE cipher suite. + * + * \param[in] cipher_suite The cipher suite structure to query. + * + * \return The PAKE algorithm stored in the cipher suite structure. + */ +static psa_algorithm_t psa_pake_cs_get_algorithm( + const psa_pake_cipher_suite_t *cipher_suite); + +/** Declare the PAKE algorithm for the cipher suite. + * + * This function overwrites any PAKE algorithm + * previously set in \p cipher_suite. + * + * \param[out] cipher_suite The cipher suite structure to write to. + * \param algorithm The PAKE algorithm to write. + * (`PSA_ALG_XXX` values of type ::psa_algorithm_t + * such that #PSA_ALG_IS_PAKE(\c alg) is true.) + * If this is 0, the PAKE algorithm in + * \p cipher_suite becomes unspecified. + */ +static void psa_pake_cs_set_algorithm(psa_pake_cipher_suite_t *cipher_suite, + psa_algorithm_t algorithm); + +/** Retrieve the primitive from a PAKE cipher suite. + * + * \param[in] cipher_suite The cipher suite structure to query. + * + * \return The primitive stored in the cipher suite structure. + */ +static psa_pake_primitive_t psa_pake_cs_get_primitive( + const psa_pake_cipher_suite_t *cipher_suite); + +/** Declare the primitive for a PAKE cipher suite. + * + * This function overwrites any primitive previously set in \p cipher_suite. + * + * \param[out] cipher_suite The cipher suite structure to write to. + * \param primitive The primitive to write. If this is 0, the + * primitive type in \p cipher_suite becomes + * unspecified. + */ +static void psa_pake_cs_set_primitive(psa_pake_cipher_suite_t *cipher_suite, + psa_pake_primitive_t primitive); + +/** Retrieve the PAKE family from a PAKE cipher suite. + * + * \param[in] cipher_suite The cipher suite structure to query. + * + * \return The PAKE family stored in the cipher suite structure. + */ +static psa_pake_family_t psa_pake_cs_get_family( + const psa_pake_cipher_suite_t *cipher_suite); + +/** Retrieve the PAKE primitive bit-size from a PAKE cipher suite. + * + * \param[in] cipher_suite The cipher suite structure to query. + * + * \return The PAKE primitive bit-size stored in the cipher suite structure. + */ +static uint16_t psa_pake_cs_get_bits( + const psa_pake_cipher_suite_t *cipher_suite); + +/** Retrieve the hash algorithm from a PAKE cipher suite. + * + * \param[in] cipher_suite The cipher suite structure to query. + * + * \return The hash algorithm stored in the cipher suite structure. The return + * value is 0 if the PAKE is not parametrised by a hash algorithm or if + * the hash algorithm is not set. + */ +static psa_algorithm_t psa_pake_cs_get_hash( + const psa_pake_cipher_suite_t *cipher_suite); + +/** Declare the hash algorithm for a PAKE cipher suite. + * + * This function overwrites any hash algorithm + * previously set in \p cipher_suite. + * + * Refer to the documentation of individual PAKE algorithm types (`PSA_ALG_XXX` + * values of type ::psa_algorithm_t such that #PSA_ALG_IS_PAKE(\c alg) is true) + * for more information. + * + * \param[out] cipher_suite The cipher suite structure to write to. + * \param hash The hash involved in the cipher suite. + * (`PSA_ALG_XXX` values of type ::psa_algorithm_t + * such that #PSA_ALG_IS_HASH(\c alg) is true.) + * If this is 0, the hash algorithm in + * \p cipher_suite becomes unspecified. + */ +static void psa_pake_cs_set_hash(psa_pake_cipher_suite_t *cipher_suite, + psa_algorithm_t hash); + +/** The type of the state data structure for PAKE operations. + * + * Before calling any function on a PAKE operation object, the application + * must initialize it by any of the following means: + * - Set the structure to all-bits-zero, for example: + * \code + * psa_pake_operation_t operation; + * memset(&operation, 0, sizeof(operation)); + * \endcode + * - Initialize the structure to logical zero values, for example: + * \code + * psa_pake_operation_t operation = {0}; + * \endcode + * - Initialize the structure to the initializer #PSA_PAKE_OPERATION_INIT, + * for example: + * \code + * psa_pake_operation_t operation = PSA_PAKE_OPERATION_INIT; + * \endcode + * - Assign the result of the function psa_pake_operation_init() + * to the structure, for example: + * \code + * psa_pake_operation_t operation; + * operation = psa_pake_operation_init(); + * \endcode + * + * This is an implementation-defined \c struct. Applications should not + * make any assumptions about the content of this structure. + * Implementation details can change in future versions without notice. */ +typedef struct psa_pake_operation_s psa_pake_operation_t; + +/** The type of input values for PAKE operations. */ +typedef struct psa_crypto_driver_pake_inputs_s psa_crypto_driver_pake_inputs_t; + +/** The type of computation stage for J-PAKE operations. */ +typedef struct psa_jpake_computation_stage_s psa_jpake_computation_stage_t; + +/** Return an initial value for a PAKE operation object. + */ +static psa_pake_operation_t psa_pake_operation_init(void); + +/** Get the length of the password in bytes from given inputs. + * + * \param[in] inputs Operation inputs. + * \param[out] password_len Password length. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BAD_STATE + * Password hasn't been set yet. + */ +psa_status_t psa_crypto_driver_pake_get_password_len( + const psa_crypto_driver_pake_inputs_t *inputs, + size_t *password_len); + +/** Get the password from given inputs. + * + * \param[in] inputs Operation inputs. + * \param[out] buffer Return buffer for password. + * \param buffer_size Size of the return buffer in bytes. + * \param[out] buffer_length Actual size of the password in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BAD_STATE + * Password hasn't been set yet. + */ +psa_status_t psa_crypto_driver_pake_get_password( + const psa_crypto_driver_pake_inputs_t *inputs, + uint8_t *buffer, size_t buffer_size, size_t *buffer_length); + +/** Get the length of the user id in bytes from given inputs. + * + * \param[in] inputs Operation inputs. + * \param[out] user_len User id length. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BAD_STATE + * User id hasn't been set yet. + */ +psa_status_t psa_crypto_driver_pake_get_user_len( + const psa_crypto_driver_pake_inputs_t *inputs, + size_t *user_len); + +/** Get the length of the peer id in bytes from given inputs. + * + * \param[in] inputs Operation inputs. + * \param[out] peer_len Peer id length. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BAD_STATE + * Peer id hasn't been set yet. + */ +psa_status_t psa_crypto_driver_pake_get_peer_len( + const psa_crypto_driver_pake_inputs_t *inputs, + size_t *peer_len); + +/** Get the user id from given inputs. + * + * \param[in] inputs Operation inputs. + * \param[out] user_id User id. + * \param user_id_size Size of \p user_id in bytes. + * \param[out] user_id_len Size of the user id in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BAD_STATE + * User id hasn't been set yet. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p user_id is too small. + */ +psa_status_t psa_crypto_driver_pake_get_user( + const psa_crypto_driver_pake_inputs_t *inputs, + uint8_t *user_id, size_t user_id_size, size_t *user_id_len); + +/** Get the peer id from given inputs. + * + * \param[in] inputs Operation inputs. + * \param[out] peer_id Peer id. + * \param peer_id_size Size of \p peer_id in bytes. + * \param[out] peer_id_length Size of the peer id in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BAD_STATE + * Peer id hasn't been set yet. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p peer_id is too small. + */ +psa_status_t psa_crypto_driver_pake_get_peer( + const psa_crypto_driver_pake_inputs_t *inputs, + uint8_t *peer_id, size_t peer_id_size, size_t *peer_id_length); + +/** Get the cipher suite from given inputs. + * + * \param[in] inputs Operation inputs. + * \param[out] cipher_suite Return buffer for role. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BAD_STATE + * Cipher_suite hasn't been set yet. + */ +psa_status_t psa_crypto_driver_pake_get_cipher_suite( + const psa_crypto_driver_pake_inputs_t *inputs, + psa_pake_cipher_suite_t *cipher_suite); + +/** Set the session information for a password-authenticated key exchange. + * + * The sequence of operations to set up a password-authenticated key exchange + * is as follows: + * -# Allocate an operation object which will be passed to all the functions + * listed here. + * -# Initialize the operation object with one of the methods described in the + * documentation for #psa_pake_operation_t, e.g. + * #PSA_PAKE_OPERATION_INIT. + * -# Call psa_pake_setup() to specify the cipher suite. + * -# Call \c psa_pake_set_xxx() functions on the operation to complete the + * setup. The exact sequence of \c psa_pake_set_xxx() functions that needs + * to be called depends on the algorithm in use. + * + * Refer to the documentation of individual PAKE algorithm types (`PSA_ALG_XXX` + * values of type ::psa_algorithm_t such that #PSA_ALG_IS_PAKE(\c alg) is true) + * for more information. + * + * A typical sequence of calls to perform a password-authenticated key + * exchange: + * -# Call psa_pake_output(operation, #PSA_PAKE_STEP_KEY_SHARE, ...) to get the + * key share that needs to be sent to the peer. + * -# Call psa_pake_input(operation, #PSA_PAKE_STEP_KEY_SHARE, ...) to provide + * the key share that was received from the peer. + * -# Depending on the algorithm additional calls to psa_pake_output() and + * psa_pake_input() might be necessary. + * -# Call psa_pake_get_implicit_key() for accessing the shared secret. + * + * Refer to the documentation of individual PAKE algorithm types (`PSA_ALG_XXX` + * values of type ::psa_algorithm_t such that #PSA_ALG_IS_PAKE(\c alg) is true) + * for more information. + * + * If an error occurs at any step after a call to psa_pake_setup(), + * the operation will need to be reset by a call to psa_pake_abort(). The + * application may call psa_pake_abort() at any time after the operation + * has been initialized. + * + * After a successful call to psa_pake_setup(), the application must + * eventually terminate the operation. The following events terminate an + * operation: + * - A call to psa_pake_abort(). + * - A successful call to psa_pake_get_implicit_key(). + * + * \param[in,out] operation The operation object to set up. It must have + * been initialized but not set up yet. + * \param[in] cipher_suite The cipher suite to use. (A cipher suite fully + * characterizes a PAKE algorithm and determines + * the algorithm as well.) + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The algorithm in \p cipher_suite is not a PAKE algorithm, or the + * PAKE primitive in \p cipher_suite is not compatible with the + * PAKE algorithm, or the hash algorithm in \p cipher_suite is invalid + * or not compatible with the PAKE algorithm and primitive. + * \retval #PSA_ERROR_NOT_SUPPORTED + * The algorithm in \p cipher_suite is not a supported PAKE algorithm, + * or the PAKE primitive in \p cipher_suite is not supported or not + * compatible with the PAKE algorithm, or the hash algorithm in + * \p cipher_suite is not supported or not compatible with the PAKE + * algorithm and primitive. + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid, or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_pake_setup(psa_pake_operation_t *operation, + const psa_pake_cipher_suite_t *cipher_suite); + +/** Set the password for a password-authenticated key exchange from key ID. + * + * Call this function when the password, or a value derived from the password, + * is already present in the key store. + * + * \param[in,out] operation The operation object to set the password for. It + * must have been set up by psa_pake_setup() and + * not yet in use (neither psa_pake_output() nor + * psa_pake_input() has been called yet). It must + * be on operation for which the password hasn't + * been set yet (psa_pake_set_password_key() + * hasn't been called yet). + * \param password Identifier of the key holding the password or a + * value derived from the password (eg. by a + * memory-hard function). It must remain valid + * until the operation terminates. It must be of + * type #PSA_KEY_TYPE_PASSWORD or + * #PSA_KEY_TYPE_PASSWORD_HASH. It has to allow + * the usage #PSA_KEY_USAGE_DERIVE. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_HANDLE + * \p password is not a valid key identifier. + * \retval #PSA_ERROR_NOT_PERMITTED + * The key does not have the #PSA_KEY_USAGE_DERIVE flag, or it does not + * permit the \p operation's algorithm. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The key type for \p password is not #PSA_KEY_TYPE_PASSWORD or + * #PSA_KEY_TYPE_PASSWORD_HASH, or \p password is not compatible with + * the \p operation's cipher suite. + * \retval #PSA_ERROR_NOT_SUPPORTED + * The key type or key size of \p password is not supported with the + * \p operation's cipher suite. + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must have been set up.), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_pake_set_password_key(psa_pake_operation_t *operation, + mbedtls_svc_key_id_t password); + +/** Set the user ID for a password-authenticated key exchange. + * + * Call this function to set the user ID. For PAKE algorithms that associate a + * user identifier with each side of the session you need to call + * psa_pake_set_peer() as well. For PAKE algorithms that associate a single + * user identifier with the session, call psa_pake_set_user() only. + * + * Refer to the documentation of individual PAKE algorithm types (`PSA_ALG_XXX` + * values of type ::psa_algorithm_t such that #PSA_ALG_IS_PAKE(\c alg) is true) + * for more information. + * + * \param[in,out] operation The operation object to set the user ID for. It + * must have been set up by psa_pake_setup() and + * not yet in use (neither psa_pake_output() nor + * psa_pake_input() has been called yet). It must + * be on operation for which the user ID hasn't + * been set (psa_pake_set_user() hasn't been + * called yet). + * \param[in] user_id The user ID to authenticate with. + * \param user_id_len Size of the \p user_id buffer in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p user_id is not valid for the \p operation's algorithm and cipher + * suite. + * \retval #PSA_ERROR_NOT_SUPPORTED + * The value of \p user_id is not supported by the implementation. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid, or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_pake_set_user(psa_pake_operation_t *operation, + const uint8_t *user_id, + size_t user_id_len); + +/** Set the peer ID for a password-authenticated key exchange. + * + * Call this function in addition to psa_pake_set_user() for PAKE algorithms + * that associate a user identifier with each side of the session. For PAKE + * algorithms that associate a single user identifier with the session, call + * psa_pake_set_user() only. + * + * Refer to the documentation of individual PAKE algorithm types (`PSA_ALG_XXX` + * values of type ::psa_algorithm_t such that #PSA_ALG_IS_PAKE(\c alg) is true) + * for more information. + * + * \param[in,out] operation The operation object to set the peer ID for. It + * must have been set up by psa_pake_setup() and + * not yet in use (neither psa_pake_output() nor + * psa_pake_input() has been called yet). It must + * be on operation for which the peer ID hasn't + * been set (psa_pake_set_peer() hasn't been + * called yet). + * \param[in] peer_id The peer's ID to authenticate. + * \param peer_id_len Size of the \p peer_id buffer in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p peer_id is not valid for the \p operation's algorithm and cipher + * suite. + * \retval #PSA_ERROR_NOT_SUPPORTED + * The algorithm doesn't associate a second identity with the session. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * Calling psa_pake_set_peer() is invalid with the \p operation's + * algorithm, the operation state is not valid, or the library has not + * been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_pake_set_peer(psa_pake_operation_t *operation, + const uint8_t *peer_id, + size_t peer_id_len); + +/** Set the application role for a password-authenticated key exchange. + * + * Not all PAKE algorithms need to differentiate the communicating entities. + * It is optional to call this function for PAKEs that don't require a role + * to be specified. For such PAKEs the application role parameter is ignored, + * or #PSA_PAKE_ROLE_NONE can be passed as \c role. + * + * Refer to the documentation of individual PAKE algorithm types (`PSA_ALG_XXX` + * values of type ::psa_algorithm_t such that #PSA_ALG_IS_PAKE(\c alg) is true) + * for more information. + * + * \param[in,out] operation The operation object to specify the + * application's role for. It must have been set up + * by psa_pake_setup() and not yet in use (neither + * psa_pake_output() nor psa_pake_input() has been + * called yet). It must be on operation for which + * the application's role hasn't been specified + * (psa_pake_set_role() hasn't been called yet). + * \param role A value of type ::psa_pake_role_t indicating the + * application's role in the PAKE the algorithm + * that is being set up. For more information see + * the documentation of \c PSA_PAKE_ROLE_XXX + * constants. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The \p role is not a valid PAKE role in the \p operation’s algorithm. + * \retval #PSA_ERROR_NOT_SUPPORTED + * The \p role for this algorithm is not supported or is not valid. + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid, or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_pake_set_role(psa_pake_operation_t *operation, + psa_pake_role_t role); + +/** Get output for a step of a password-authenticated key exchange. + * + * Depending on the algorithm being executed, you might need to call this + * function several times or you might not need to call this at all. + * + * The exact sequence of calls to perform a password-authenticated key + * exchange depends on the algorithm in use. Refer to the documentation of + * individual PAKE algorithm types (`PSA_ALG_XXX` values of type + * ::psa_algorithm_t such that #PSA_ALG_IS_PAKE(\c alg) is true) for more + * information. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_pake_abort(). + * + * \param[in,out] operation Active PAKE operation. + * \param step The step of the algorithm for which the output is + * requested. + * \param[out] output Buffer where the output is to be written in the + * format appropriate for this \p step. Refer to + * the documentation of the individual + * \c PSA_PAKE_STEP_XXX constants for more + * information. + * \param output_size Size of the \p output buffer in bytes. This must + * be at least #PSA_PAKE_OUTPUT_SIZE(\c alg, \c + * primitive, \p output_step) where \c alg and + * \p primitive are the PAKE algorithm and primitive + * in the operation's cipher suite, and \p step is + * the output step. + * + * \param[out] output_length On success, the number of bytes of the returned + * output. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_BUFFER_TOO_SMALL + * The size of the \p output buffer is too small. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p step is not compatible with the operation's algorithm. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p step is not supported with the operation's algorithm. + * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active, and fully set + * up, and this call must conform to the algorithm's requirements + * for ordering of input and output steps), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_pake_output(psa_pake_operation_t *operation, + psa_pake_step_t step, + uint8_t *output, + size_t output_size, + size_t *output_length); + +/** Provide input for a step of a password-authenticated key exchange. + * + * Depending on the algorithm being executed, you might need to call this + * function several times or you might not need to call this at all. + * + * The exact sequence of calls to perform a password-authenticated key + * exchange depends on the algorithm in use. Refer to the documentation of + * individual PAKE algorithm types (`PSA_ALG_XXX` values of type + * ::psa_algorithm_t such that #PSA_ALG_IS_PAKE(\c alg) is true) for more + * information. + * + * If this function returns an error status, the operation enters an error + * state and must be aborted by calling psa_pake_abort(). + * + * \param[in,out] operation Active PAKE operation. + * \param step The step for which the input is provided. + * \param[in] input Buffer containing the input in the format + * appropriate for this \p step. Refer to the + * documentation of the individual + * \c PSA_PAKE_STEP_XXX constants for more + * information. + * \param input_length Size of the \p input buffer in bytes. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The verification fails for a #PSA_PAKE_STEP_ZK_PROOF input step. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * \p input_length is not compatible with the \p operation’s algorithm, + * or the \p input is not valid for the \p operation's algorithm, + * cipher suite or \p step. + * \retval #PSA_ERROR_NOT_SUPPORTED + * \p step p is not supported with the \p operation's algorithm, or the + * \p input is not supported for the \p operation's algorithm, cipher + * suite or \p step. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The operation state is not valid (it must be active, and fully set + * up, and this call must conform to the algorithm's requirements + * for ordering of input and output steps), or + * the library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_pake_input(psa_pake_operation_t *operation, + psa_pake_step_t step, + const uint8_t *input, + size_t input_length); + +/** Get implicitly confirmed shared secret from a PAKE. + * + * At this point there is a cryptographic guarantee that only the authenticated + * party who used the same password is able to compute the key. But there is no + * guarantee that the peer is the party it claims to be and was able to do so. + * + * That is, the authentication is only implicit. Since the peer is not + * authenticated yet, no action should be taken yet that assumes that the peer + * is who it claims to be. For example, do not access restricted files on the + * peer's behalf until an explicit authentication has succeeded. + * + * This function can be called after the key exchange phase of the operation + * has completed. It imports the shared secret output of the PAKE into the + * provided derivation operation. The input step + * #PSA_KEY_DERIVATION_INPUT_SECRET is used when placing the shared key + * material in the key derivation operation. + * + * The exact sequence of calls to perform a password-authenticated key + * exchange depends on the algorithm in use. Refer to the documentation of + * individual PAKE algorithm types (`PSA_ALG_XXX` values of type + * ::psa_algorithm_t such that #PSA_ALG_IS_PAKE(\c alg) is true) for more + * information. + * + * When this function returns successfully, \p operation becomes inactive. + * If this function returns an error status, both \p operation + * and \c key_derivation operations enter an error state and must be aborted by + * calling psa_pake_abort() and psa_key_derivation_abort() respectively. + * + * \param[in,out] operation Active PAKE operation. + * \param[out] output A key derivation operation that is ready + * for an input step of type + * #PSA_KEY_DERIVATION_INPUT_SECRET. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * #PSA_KEY_DERIVATION_INPUT_SECRET is not compatible with the + * algorithm in the \p output key derivation operation. + * \retval #PSA_ERROR_NOT_SUPPORTED + * Input from a PAKE is not supported by the algorithm in the \p output + * key derivation operation. + * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription + * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription + * \retval #PSA_ERROR_DATA_INVALID \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The PAKE operation state is not valid (it must be active, but beyond + * that validity is specific to the algorithm), or + * the library has not been previously initialized by psa_crypto_init(), + * or the state of \p output is not valid for + * the #PSA_KEY_DERIVATION_INPUT_SECRET step. This can happen if the + * step is out of order or the application has done this step already + * and it may not be repeated. + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_pake_get_implicit_key(psa_pake_operation_t *operation, + psa_key_derivation_operation_t *output); + +/** Abort a PAKE operation. + * + * Aborting an operation frees all associated resources except for the \c + * operation structure itself. Once aborted, the operation object can be reused + * for another operation by calling psa_pake_setup() again. + * + * This function may be called at any time after the operation + * object has been initialized as described in #psa_pake_operation_t. + * + * In particular, calling psa_pake_abort() after the operation has been + * terminated by a call to psa_pake_abort() or psa_pake_get_implicit_key() + * is safe and has no effect. + * + * \param[in,out] operation The operation to abort. + * + * \retval #PSA_SUCCESS + * Success. + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + * \retval #PSA_ERROR_BAD_STATE + * The library has not been previously initialized by psa_crypto_init(). + * It is implementation-dependent whether a failure to initialize + * results in this error code. + */ +psa_status_t psa_pake_abort(psa_pake_operation_t *operation); + +/**@}*/ + +/** A sufficient output buffer size for psa_pake_output(). + * + * If the size of the output buffer is at least this large, it is guaranteed + * that psa_pake_output() will not fail due to an insufficient output buffer + * size. The actual size of the output might be smaller in any given call. + * + * See also #PSA_PAKE_OUTPUT_MAX_SIZE + * + * \param alg A PAKE algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_PAKE(\p alg) is true). + * \param primitive A primitive of type ::psa_pake_primitive_t that is + * compatible with algorithm \p alg. + * \param output_step A value of type ::psa_pake_step_t that is valid for the + * algorithm \p alg. + * \return A sufficient output buffer size for the specified + * PAKE algorithm, primitive, and output step. If the + * PAKE algorithm, primitive, or output step is not + * recognized, or the parameters are incompatible, + * return 0. + */ +#define PSA_PAKE_OUTPUT_SIZE(alg, primitive, output_step) \ + (alg == PSA_ALG_JPAKE && \ + primitive == PSA_PAKE_PRIMITIVE(PSA_PAKE_PRIMITIVE_TYPE_ECC, \ + PSA_ECC_FAMILY_SECP_R1, 256) ? \ + ( \ + output_step == PSA_PAKE_STEP_KEY_SHARE ? 65 : \ + output_step == PSA_PAKE_STEP_ZK_PUBLIC ? 65 : \ + 32 \ + ) : \ + 0) + +/** A sufficient input buffer size for psa_pake_input(). + * + * The value returned by this macro is guaranteed to be large enough for any + * valid input to psa_pake_input() in an operation with the specified + * parameters. + * + * See also #PSA_PAKE_INPUT_MAX_SIZE + * + * \param alg A PAKE algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_PAKE(\p alg) is true). + * \param primitive A primitive of type ::psa_pake_primitive_t that is + * compatible with algorithm \p alg. + * \param input_step A value of type ::psa_pake_step_t that is valid for the + * algorithm \p alg. + * \return A sufficient input buffer size for the specified + * input, cipher suite and algorithm. If the cipher suite, + * the input type or PAKE algorithm is not recognized, or + * the parameters are incompatible, return 0. + */ +#define PSA_PAKE_INPUT_SIZE(alg, primitive, input_step) \ + (alg == PSA_ALG_JPAKE && \ + primitive == PSA_PAKE_PRIMITIVE(PSA_PAKE_PRIMITIVE_TYPE_ECC, \ + PSA_ECC_FAMILY_SECP_R1, 256) ? \ + ( \ + input_step == PSA_PAKE_STEP_KEY_SHARE ? 65 : \ + input_step == PSA_PAKE_STEP_ZK_PUBLIC ? 65 : \ + 32 \ + ) : \ + 0) + +/** Output buffer size for psa_pake_output() for any of the supported PAKE + * algorithm and primitive suites and output step. + * + * This macro must expand to a compile-time constant integer. + * + * The value of this macro must be at least as large as the largest value + * returned by PSA_PAKE_OUTPUT_SIZE() + * + * See also #PSA_PAKE_OUTPUT_SIZE(\p alg, \p primitive, \p output_step). + */ +#define PSA_PAKE_OUTPUT_MAX_SIZE 65 + +/** Input buffer size for psa_pake_input() for any of the supported PAKE + * algorithm and primitive suites and input step. + * + * This macro must expand to a compile-time constant integer. + * + * The value of this macro must be at least as large as the largest value + * returned by PSA_PAKE_INPUT_SIZE() + * + * See also #PSA_PAKE_INPUT_SIZE(\p alg, \p primitive, \p output_step). + */ +#define PSA_PAKE_INPUT_MAX_SIZE 65 + +/** Returns a suitable initializer for a PAKE cipher suite object of type + * psa_pake_cipher_suite_t. + */ +#define PSA_PAKE_CIPHER_SUITE_INIT { PSA_ALG_NONE, 0, 0, 0, PSA_ALG_NONE } + +/** Returns a suitable initializer for a PAKE operation object of type + * psa_pake_operation_t. + */ +#define PSA_PAKE_OPERATION_INIT { 0, PSA_ALG_NONE, 0, PSA_PAKE_OPERATION_STAGE_SETUP, \ + { 0 }, { { 0 } } } + +struct psa_pake_cipher_suite_s { + psa_algorithm_t algorithm; + psa_pake_primitive_type_t type; + psa_pake_family_t family; + uint16_t bits; + psa_algorithm_t hash; +}; + +static inline psa_algorithm_t psa_pake_cs_get_algorithm( + const psa_pake_cipher_suite_t *cipher_suite) +{ + return cipher_suite->algorithm; +} + +static inline void psa_pake_cs_set_algorithm( + psa_pake_cipher_suite_t *cipher_suite, + psa_algorithm_t algorithm) +{ + if (!PSA_ALG_IS_PAKE(algorithm)) { + cipher_suite->algorithm = 0; + } else { + cipher_suite->algorithm = algorithm; + } +} + +static inline psa_pake_primitive_t psa_pake_cs_get_primitive( + const psa_pake_cipher_suite_t *cipher_suite) +{ + return PSA_PAKE_PRIMITIVE(cipher_suite->type, cipher_suite->family, + cipher_suite->bits); +} + +static inline void psa_pake_cs_set_primitive( + psa_pake_cipher_suite_t *cipher_suite, + psa_pake_primitive_t primitive) +{ + cipher_suite->type = (psa_pake_primitive_type_t) (primitive >> 24); + cipher_suite->family = (psa_pake_family_t) (0xFF & (primitive >> 16)); + cipher_suite->bits = (uint16_t) (0xFFFF & primitive); +} + +static inline psa_pake_family_t psa_pake_cs_get_family( + const psa_pake_cipher_suite_t *cipher_suite) +{ + return cipher_suite->family; +} + +static inline uint16_t psa_pake_cs_get_bits( + const psa_pake_cipher_suite_t *cipher_suite) +{ + return cipher_suite->bits; +} + +static inline psa_algorithm_t psa_pake_cs_get_hash( + const psa_pake_cipher_suite_t *cipher_suite) +{ + return cipher_suite->hash; +} + +static inline void psa_pake_cs_set_hash(psa_pake_cipher_suite_t *cipher_suite, + psa_algorithm_t hash) +{ + if (!PSA_ALG_IS_HASH(hash)) { + cipher_suite->hash = 0; + } else { + cipher_suite->hash = hash; + } +} + +struct psa_crypto_driver_pake_inputs_s { + uint8_t *MBEDTLS_PRIVATE(password); + size_t MBEDTLS_PRIVATE(password_len); + uint8_t *MBEDTLS_PRIVATE(user); + size_t MBEDTLS_PRIVATE(user_len); + uint8_t *MBEDTLS_PRIVATE(peer); + size_t MBEDTLS_PRIVATE(peer_len); + psa_key_attributes_t MBEDTLS_PRIVATE(attributes); + psa_pake_cipher_suite_t MBEDTLS_PRIVATE(cipher_suite); +}; + +typedef enum psa_crypto_driver_pake_step { + PSA_JPAKE_STEP_INVALID = 0, /* Invalid step */ + PSA_JPAKE_X1_STEP_KEY_SHARE = 1, /* Round 1: input/output key share (for ephemeral private key X1).*/ + PSA_JPAKE_X1_STEP_ZK_PUBLIC = 2, /* Round 1: input/output Schnorr NIZKP public key for the X1 key */ + PSA_JPAKE_X1_STEP_ZK_PROOF = 3, /* Round 1: input/output Schnorr NIZKP proof for the X1 key */ + PSA_JPAKE_X2_STEP_KEY_SHARE = 4, /* Round 1: input/output key share (for ephemeral private key X2).*/ + PSA_JPAKE_X2_STEP_ZK_PUBLIC = 5, /* Round 1: input/output Schnorr NIZKP public key for the X2 key */ + PSA_JPAKE_X2_STEP_ZK_PROOF = 6, /* Round 1: input/output Schnorr NIZKP proof for the X2 key */ + PSA_JPAKE_X2S_STEP_KEY_SHARE = 7, /* Round 2: output X2S key (our key) */ + PSA_JPAKE_X2S_STEP_ZK_PUBLIC = 8, /* Round 2: output Schnorr NIZKP public key for the X2S key (our key) */ + PSA_JPAKE_X2S_STEP_ZK_PROOF = 9, /* Round 2: output Schnorr NIZKP proof for the X2S key (our key) */ + PSA_JPAKE_X4S_STEP_KEY_SHARE = 10, /* Round 2: input X4S key (from peer) */ + PSA_JPAKE_X4S_STEP_ZK_PUBLIC = 11, /* Round 2: input Schnorr NIZKP public key for the X4S key (from peer) */ + PSA_JPAKE_X4S_STEP_ZK_PROOF = 12 /* Round 2: input Schnorr NIZKP proof for the X4S key (from peer) */ +} psa_crypto_driver_pake_step_t; + +typedef enum psa_jpake_round { + PSA_JPAKE_FIRST = 0, + PSA_JPAKE_SECOND = 1, + PSA_JPAKE_FINISHED = 2 +} psa_jpake_round_t; + +typedef enum psa_jpake_io_mode { + PSA_JPAKE_INPUT = 0, + PSA_JPAKE_OUTPUT = 1 +} psa_jpake_io_mode_t; + +struct psa_jpake_computation_stage_s { + /* The J-PAKE round we are currently on */ + psa_jpake_round_t MBEDTLS_PRIVATE(round); + /* The 'mode' we are currently in (inputting or outputting) */ + psa_jpake_io_mode_t MBEDTLS_PRIVATE(io_mode); + /* The number of completed inputs so far this round */ + uint8_t MBEDTLS_PRIVATE(inputs); + /* The number of completed outputs so far this round */ + uint8_t MBEDTLS_PRIVATE(outputs); + /* The next expected step (KEY_SHARE, ZK_PUBLIC or ZK_PROOF) */ + psa_pake_step_t MBEDTLS_PRIVATE(step); +}; + +#define PSA_JPAKE_EXPECTED_INPUTS(round) ((round) == PSA_JPAKE_FINISHED ? 0 : \ + ((round) == PSA_JPAKE_FIRST ? 2 : 1)) +#define PSA_JPAKE_EXPECTED_OUTPUTS(round) ((round) == PSA_JPAKE_FINISHED ? 0 : \ + ((round) == PSA_JPAKE_FIRST ? 2 : 1)) + +struct psa_pake_operation_s { + /** Unique ID indicating which driver got assigned to do the + * operation. Since driver contexts are driver-specific, swapping + * drivers halfway through the operation is not supported. + * ID values are auto-generated in psa_crypto_driver_wrappers.h + * ID value zero means the context is not valid or not assigned to + * any driver (i.e. none of the driver contexts are active). */ + unsigned int MBEDTLS_PRIVATE(id); + /* Algorithm of the PAKE operation */ + psa_algorithm_t MBEDTLS_PRIVATE(alg); + /* A primitive of type compatible with algorithm */ + psa_pake_primitive_t MBEDTLS_PRIVATE(primitive); + /* Stage of the PAKE operation: waiting for the setup, collecting inputs + * or computing. */ + uint8_t MBEDTLS_PRIVATE(stage); + /* Holds computation stage of the PAKE algorithms. */ + union { + uint8_t MBEDTLS_PRIVATE(dummy); +#if defined(PSA_WANT_ALG_JPAKE) + psa_jpake_computation_stage_t MBEDTLS_PRIVATE(jpake); +#endif + } MBEDTLS_PRIVATE(computation_stage); + union { + psa_driver_pake_context_t MBEDTLS_PRIVATE(ctx); + psa_crypto_driver_pake_inputs_t MBEDTLS_PRIVATE(inputs); + } MBEDTLS_PRIVATE(data); +}; + +static inline struct psa_pake_cipher_suite_s psa_pake_cipher_suite_init(void) +{ + const struct psa_pake_cipher_suite_s v = PSA_PAKE_CIPHER_SUITE_INIT; + return v; +} + +static inline struct psa_pake_operation_s psa_pake_operation_init(void) +{ + const struct psa_pake_operation_s v = PSA_PAKE_OPERATION_INIT; + return v; +} + +#ifdef __cplusplus +} +#endif + +#endif /* PSA_CRYPTO_EXTRA_H */ diff --git a/include/psa/crypto_legacy.h b/include/psa/crypto_legacy.h new file mode 100644 index 0000000..7df3614 --- /dev/null +++ b/include/psa/crypto_legacy.h @@ -0,0 +1,88 @@ +/** + * \file psa/crypto_legacy.h + * + * \brief Add temporary suppport for deprecated symbols before they are + * removed from the library. + * + * PSA_WANT_KEY_TYPE_xxx_KEY_PAIR and MBEDTLS_PSA_ACCEL_KEY_TYPE_xxx_KEY_PAIR + * symbols are deprecated. + * New symols add a suffix to that base name in order to clearly state what is + * the expected use for the key (use, import, export, generate, derive). + * Here we define some backward compatibility support for uses stil using + * the legacy symbols. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef MBEDTLS_PSA_CRYPTO_LEGACY_H +#define MBEDTLS_PSA_CRYPTO_LEGACY_H + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR) //no-check-names +#if !defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC) +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC 1 +#endif +#if !defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_IMPORT) +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_IMPORT 1 +#endif +#if !defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_EXPORT) +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_EXPORT 1 +#endif +#if !defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE) +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE 1 +#endif +#if !defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE) +#define PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE 1 +#endif +#endif + +#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR) //no-check-names +#if !defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_BASIC) +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_BASIC 1 +#endif +#if !defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_IMPORT) +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_IMPORT 1 +#endif +#if !defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_EXPORT) +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_EXPORT 1 +#endif +#if !defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE) +#define PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE 1 +#endif +#endif + +#if defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR) //no-check-names +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_BASIC) +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_BASIC +#endif +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_IMPORT) +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_IMPORT +#endif +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_EXPORT) +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_EXPORT +#endif +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_GENERATE) +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_GENERATE +#endif +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_DERIVE) +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR_DERIVE +#endif +#endif + +#if defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR) //no-check-names +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_BASIC) +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_BASIC +#endif +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_IMPORT) +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_IMPORT +#endif +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_EXPORT) +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_EXPORT +#endif +#if !defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_GENERATE) +#define MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_GENERATE +#endif +#endif + +#endif /* MBEDTLS_PSA_CRYPTO_LEGACY_H */ diff --git a/include/psa/crypto_platform.h b/include/psa/crypto_platform.h new file mode 100644 index 0000000..f32a101 --- /dev/null +++ b/include/psa/crypto_platform.h @@ -0,0 +1,92 @@ +/** + * \file psa/crypto_platform.h + * + * \brief PSA cryptography module: Mbed TLS platform definitions + * + * \note This file may not be included directly. Applications must + * include psa/crypto.h. + * + * This file contains platform-dependent type definitions. + * + * In implementations with isolation between the application and the + * cryptography module, implementers should take care to ensure that + * the definitions that are exposed to applications match what the + * module implements. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_PLATFORM_H +#define PSA_CRYPTO_PLATFORM_H +#include "mbedtls/private_access.h" + +/* + * Include the build-time configuration information file. Here, we do not + * include `"mbedtls/build_info.h"` directly but `"psa/build_info.h"`, which + * is basically just an alias to it. This is to ease the maintenance of the + * PSA cryptography repository which has a different build system and + * configuration. + */ +#include "psa/build_info.h" + +/* PSA requires several types which C99 provides in stdint.h. */ +#include <stdint.h> + +#if defined(MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER) + +/* Building for the PSA Crypto service on a PSA platform, a key owner is a PSA + * partition identifier. + * + * The function psa_its_identifier_of_slot() in psa_crypto_storage.c that + * translates a key identifier to a key storage file name assumes that + * mbedtls_key_owner_id_t is a 32-bit integer. This function thus needs + * reworking if mbedtls_key_owner_id_t is not defined as a 32-bit integer + * here anymore. + */ +typedef int32_t mbedtls_key_owner_id_t; + +/** Compare two key owner identifiers. + * + * \param id1 First key owner identifier. + * \param id2 Second key owner identifier. + * + * \return Non-zero if the two key owner identifiers are equal, zero otherwise. + */ +static inline int mbedtls_key_owner_id_equal(mbedtls_key_owner_id_t id1, + mbedtls_key_owner_id_t id2) +{ + return id1 == id2; +} + +#endif /* MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER */ + +/* + * When MBEDTLS_PSA_CRYPTO_SPM is defined, the code is being built for SPM + * (Secure Partition Manager) integration which separates the code into two + * parts: NSPE (Non-Secure Processing Environment) and SPE (Secure Processing + * Environment). When building for the SPE, an additional header file should be + * included. + */ +#if defined(MBEDTLS_PSA_CRYPTO_SPM) +#define PSA_CRYPTO_SECURE 1 +#include "crypto_spe.h" +#endif // MBEDTLS_PSA_CRYPTO_SPM + +#if defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) +/** The type of the context passed to mbedtls_psa_external_get_random(). + * + * Mbed TLS initializes the context to all-bits-zero before calling + * mbedtls_psa_external_get_random() for the first time. + * + * The definition of this type in the Mbed TLS source code is for + * demonstration purposes. Implementers of mbedtls_psa_external_get_random() + * are expected to replace it with a custom definition. + */ +typedef struct { + uintptr_t MBEDTLS_PRIVATE(opaque)[2]; +} mbedtls_psa_external_random_context_t; +#endif /* MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG */ + +#endif /* PSA_CRYPTO_PLATFORM_H */ diff --git a/include/psa/crypto_se_driver.h b/include/psa/crypto_se_driver.h new file mode 100644 index 0000000..9ce14bb --- /dev/null +++ b/include/psa/crypto_se_driver.h @@ -0,0 +1,1383 @@ +/** + * \file psa/crypto_se_driver.h + * \brief PSA external cryptoprocessor driver module + * + * This header declares types and function signatures for cryptography + * drivers that access key material via opaque references. + * This is meant for cryptoprocessors that have a separate key storage from the + * space in which the PSA Crypto implementation runs, typically secure + * elements (SEs). + * + * This file is part of the PSA Crypto Driver HAL (hardware abstraction layer), + * containing functions for driver developers to implement to enable hardware + * to be called in a standardized way by a PSA Cryptography API + * implementation. The functions comprising the driver HAL, which driver + * authors implement, are not intended to be called by application developers. + */ + +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef PSA_CRYPTO_SE_DRIVER_H +#define PSA_CRYPTO_SE_DRIVER_H +#include "mbedtls/private_access.h" + +#include "crypto_driver_common.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** \defgroup se_init Secure element driver initialization + */ +/**@{*/ + +/** \brief Driver context structure + * + * Driver functions receive a pointer to this structure. + * Each registered driver has one instance of this structure. + * + * Implementations must include the fields specified here and + * may include other fields. + */ +typedef struct { + /** A read-only pointer to the driver's persistent data. + * + * Drivers typically use this persistent data to keep track of + * which slot numbers are available. This is only a guideline: + * drivers may use the persistent data for any purpose, keeping + * in mind the restrictions on when the persistent data is saved + * to storage: the persistent data is only saved after calling + * certain functions that receive a writable pointer to the + * persistent data. + * + * The core allocates a memory buffer for the persistent data. + * The pointer is guaranteed to be suitably aligned for any data type, + * like a pointer returned by `malloc` (but the core can use any + * method to allocate the buffer, not necessarily `malloc`). + * + * The size of this buffer is in the \c persistent_data_size field of + * this structure. + * + * Before the driver is initialized for the first time, the content of + * the persistent data is all-bits-zero. After a driver upgrade, if the + * size of the persistent data has increased, the original data is padded + * on the right with zeros; if the size has decreased, the original data + * is truncated to the new size. + * + * This pointer is to read-only data. Only a few driver functions are + * allowed to modify the persistent data. These functions receive a + * writable pointer. These functions are: + * - psa_drv_se_t::p_init + * - psa_drv_se_key_management_t::p_allocate + * - psa_drv_se_key_management_t::p_destroy + * + * The PSA Cryptography core saves the persistent data from one + * session to the next. It does this before returning from API functions + * that call a driver method that is allowed to modify the persistent + * data, specifically: + * - psa_crypto_init() causes a call to psa_drv_se_t::p_init, and may call + * psa_drv_se_key_management_t::p_destroy to complete an action + * that was interrupted by a power failure. + * - Key creation functions cause a call to + * psa_drv_se_key_management_t::p_allocate, and may cause a call to + * psa_drv_se_key_management_t::p_destroy in case an error occurs. + * - psa_destroy_key() causes a call to + * psa_drv_se_key_management_t::p_destroy. + */ + const void *const MBEDTLS_PRIVATE(persistent_data); + + /** The size of \c persistent_data in bytes. + * + * This is always equal to the value of the `persistent_data_size` field + * of the ::psa_drv_se_t structure when the driver is registered. + */ + const size_t MBEDTLS_PRIVATE(persistent_data_size); + + /** Driver transient data. + * + * The core initializes this value to 0 and does not read or modify it + * afterwards. The driver may store whatever it wants in this field. + */ + uintptr_t MBEDTLS_PRIVATE(transient_data); +} psa_drv_se_context_t; + +/** \brief A driver initialization function. + * + * \param[in,out] drv_context The driver context structure. + * \param[in,out] persistent_data A pointer to the persistent data + * that allows writing. + * \param location The location value for which this driver + * is registered. The driver will be invoked + * for all keys whose lifetime is in this + * location. + * + * \retval #PSA_SUCCESS + * The driver is operational. + * The core will update the persistent data in storage. + * \return + * Any other return value prevents the driver from being used in + * this session. + * The core will NOT update the persistent data in storage. + */ +typedef psa_status_t (*psa_drv_se_init_t)(psa_drv_se_context_t *drv_context, + void *persistent_data, + psa_key_location_t location); + +#if defined(__DOXYGEN_ONLY__) || !defined(MBEDTLS_PSA_CRYPTO_SE_C) +/* Mbed TLS with secure element support enabled defines this type in + * crypto_types.h because it is also visible to applications through an + * implementation-specific extension. + * For the PSA Cryptography specification, this type is only visible + * via crypto_se_driver.h. */ +/** An internal designation of a key slot between the core part of the + * PSA Crypto implementation and the driver. The meaning of this value + * is driver-dependent. */ +typedef uint64_t psa_key_slot_number_t; +#endif /* __DOXYGEN_ONLY__ || !MBEDTLS_PSA_CRYPTO_SE_C */ + +/**@}*/ + +/** \defgroup se_mac Secure Element Message Authentication Codes + * Generation and authentication of Message Authentication Codes (MACs) using + * a secure element can be done either as a single function call (via the + * `psa_drv_se_mac_generate_t` or `psa_drv_se_mac_verify_t` functions), or in + * parts using the following sequence: + * - `psa_drv_se_mac_setup_t` + * - `psa_drv_se_mac_update_t` + * - `psa_drv_se_mac_update_t` + * - ... + * - `psa_drv_se_mac_finish_t` or `psa_drv_se_mac_finish_verify_t` + * + * If a previously started secure element MAC operation needs to be terminated, + * it should be done so by the `psa_drv_se_mac_abort_t`. Failure to do so may + * result in allocated resources not being freed or in other undefined + * behavior. + */ +/**@{*/ +/** \brief A function that starts a secure element MAC operation for a PSA + * Crypto Driver implementation + * + * \param[in,out] drv_context The driver context structure. + * \param[in,out] op_context A structure that will contain the + * hardware-specific MAC context + * \param[in] key_slot The slot of the key to be used for the + * operation + * \param[in] algorithm The algorithm to be used to underly the MAC + * operation + * + * \retval #PSA_SUCCESS + * Success. + */ +typedef psa_status_t (*psa_drv_se_mac_setup_t)(psa_drv_se_context_t *drv_context, + void *op_context, + psa_key_slot_number_t key_slot, + psa_algorithm_t algorithm); + +/** \brief A function that continues a previously started secure element MAC + * operation + * + * \param[in,out] op_context A hardware-specific structure for the + * previously-established MAC operation to be + * updated + * \param[in] p_input A buffer containing the message to be appended + * to the MAC operation + * \param[in] input_length The size in bytes of the input message buffer + */ +typedef psa_status_t (*psa_drv_se_mac_update_t)(void *op_context, + const uint8_t *p_input, + size_t input_length); + +/** \brief a function that completes a previously started secure element MAC + * operation by returning the resulting MAC. + * + * \param[in,out] op_context A hardware-specific structure for the + * previously started MAC operation to be + * finished + * \param[out] p_mac A buffer where the generated MAC will be + * placed + * \param[in] mac_size The size in bytes of the buffer that has been + * allocated for the `output` buffer + * \param[out] p_mac_length After completion, will contain the number of + * bytes placed in the `p_mac` buffer + * + * \retval #PSA_SUCCESS + * Success. + */ +typedef psa_status_t (*psa_drv_se_mac_finish_t)(void *op_context, + uint8_t *p_mac, + size_t mac_size, + size_t *p_mac_length); + +/** \brief A function that completes a previously started secure element MAC + * operation by comparing the resulting MAC against a provided value + * + * \param[in,out] op_context A hardware-specific structure for the previously + * started MAC operation to be finished + * \param[in] p_mac The MAC value against which the resulting MAC + * will be compared against + * \param[in] mac_length The size in bytes of the value stored in `p_mac` + * + * \retval #PSA_SUCCESS + * The operation completed successfully and the MACs matched each + * other + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The operation completed successfully, but the calculated MAC did + * not match the provided MAC + */ +typedef psa_status_t (*psa_drv_se_mac_finish_verify_t)(void *op_context, + const uint8_t *p_mac, + size_t mac_length); + +/** \brief A function that aborts a previous started secure element MAC + * operation + * + * \param[in,out] op_context A hardware-specific structure for the previously + * started MAC operation to be aborted + */ +typedef psa_status_t (*psa_drv_se_mac_abort_t)(void *op_context); + +/** \brief A function that performs a secure element MAC operation in one + * command and returns the calculated MAC + * + * \param[in,out] drv_context The driver context structure. + * \param[in] p_input A buffer containing the message to be MACed + * \param[in] input_length The size in bytes of `p_input` + * \param[in] key_slot The slot of the key to be used + * \param[in] alg The algorithm to be used to underlie the MAC + * operation + * \param[out] p_mac A buffer where the generated MAC will be + * placed + * \param[in] mac_size The size in bytes of the `p_mac` buffer + * \param[out] p_mac_length After completion, will contain the number of + * bytes placed in the `output` buffer + * + * \retval #PSA_SUCCESS + * Success. + */ +typedef psa_status_t (*psa_drv_se_mac_generate_t)(psa_drv_se_context_t *drv_context, + const uint8_t *p_input, + size_t input_length, + psa_key_slot_number_t key_slot, + psa_algorithm_t alg, + uint8_t *p_mac, + size_t mac_size, + size_t *p_mac_length); + +/** \brief A function that performs a secure element MAC operation in one + * command and compares the resulting MAC against a provided value + * + * \param[in,out] drv_context The driver context structure. + * \param[in] p_input A buffer containing the message to be MACed + * \param[in] input_length The size in bytes of `input` + * \param[in] key_slot The slot of the key to be used + * \param[in] alg The algorithm to be used to underlie the MAC + * operation + * \param[in] p_mac The MAC value against which the resulting MAC will + * be compared against + * \param[in] mac_length The size in bytes of `mac` + * + * \retval #PSA_SUCCESS + * The operation completed successfully and the MACs matched each + * other + * \retval #PSA_ERROR_INVALID_SIGNATURE + * The operation completed successfully, but the calculated MAC did + * not match the provided MAC + */ +typedef psa_status_t (*psa_drv_se_mac_verify_t)(psa_drv_se_context_t *drv_context, + const uint8_t *p_input, + size_t input_length, + psa_key_slot_number_t key_slot, + psa_algorithm_t alg, + const uint8_t *p_mac, + size_t mac_length); + +/** \brief A struct containing all of the function pointers needed to + * perform secure element MAC operations + * + * PSA Crypto API implementations should populate the table as appropriate + * upon startup. + * + * If one of the functions is not implemented (such as + * `psa_drv_se_mac_generate_t`), it should be set to NULL. + * + * Driver implementers should ensure that they implement all of the functions + * that make sense for their hardware, and that they provide a full solution + * (for example, if they support `p_setup`, they should also support + * `p_update` and at least one of `p_finish` or `p_finish_verify`). + * + */ +typedef struct { + /**The size in bytes of the hardware-specific secure element MAC context + * structure + */ + size_t MBEDTLS_PRIVATE(context_size); + /** Function that performs a MAC setup operation + */ + psa_drv_se_mac_setup_t MBEDTLS_PRIVATE(p_setup); + /** Function that performs a MAC update operation + */ + psa_drv_se_mac_update_t MBEDTLS_PRIVATE(p_update); + /** Function that completes a MAC operation + */ + psa_drv_se_mac_finish_t MBEDTLS_PRIVATE(p_finish); + /** Function that completes a MAC operation with a verify check + */ + psa_drv_se_mac_finish_verify_t MBEDTLS_PRIVATE(p_finish_verify); + /** Function that aborts a previously started MAC operation + */ + psa_drv_se_mac_abort_t MBEDTLS_PRIVATE(p_abort); + /** Function that performs a MAC operation in one call + */ + psa_drv_se_mac_generate_t MBEDTLS_PRIVATE(p_mac); + /** Function that performs a MAC and verify operation in one call + */ + psa_drv_se_mac_verify_t MBEDTLS_PRIVATE(p_mac_verify); +} psa_drv_se_mac_t; +/**@}*/ + +/** \defgroup se_cipher Secure Element Symmetric Ciphers + * + * Encryption and Decryption using secure element keys in block modes other + * than ECB must be done in multiple parts, using the following flow: + * - `psa_drv_se_cipher_setup_t` + * - `psa_drv_se_cipher_set_iv_t` (optional depending upon block mode) + * - `psa_drv_se_cipher_update_t` + * - `psa_drv_se_cipher_update_t` + * - ... + * - `psa_drv_se_cipher_finish_t` + * + * If a previously started secure element Cipher operation needs to be + * terminated, it should be done so by the `psa_drv_se_cipher_abort_t`. Failure + * to do so may result in allocated resources not being freed or in other + * undefined behavior. + * + * In situations where a PSA Cryptographic API implementation is using a block + * mode not-supported by the underlying hardware or driver, it can construct + * the block mode itself, while calling the `psa_drv_se_cipher_ecb_t` function + * for the cipher operations. + */ +/**@{*/ + +/** \brief A function that provides the cipher setup function for a + * secure element driver + * + * \param[in,out] drv_context The driver context structure. + * \param[in,out] op_context A structure that will contain the + * hardware-specific cipher context. + * \param[in] key_slot The slot of the key to be used for the + * operation + * \param[in] algorithm The algorithm to be used in the cipher + * operation + * \param[in] direction Indicates whether the operation is an encrypt + * or decrypt + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + */ +typedef psa_status_t (*psa_drv_se_cipher_setup_t)(psa_drv_se_context_t *drv_context, + void *op_context, + psa_key_slot_number_t key_slot, + psa_algorithm_t algorithm, + psa_encrypt_or_decrypt_t direction); + +/** \brief A function that sets the initialization vector (if + * necessary) for a secure element cipher operation + * + * Rationale: The `psa_se_cipher_*` operation in the PSA Cryptographic API has + * two IV functions: one to set the IV, and one to generate it internally. The + * generate function is not necessary for the drivers to implement as the PSA + * Crypto implementation can do the generation using its RNG features. + * + * \param[in,out] op_context A structure that contains the previously set up + * hardware-specific cipher context + * \param[in] p_iv A buffer containing the initialization vector + * \param[in] iv_length The size (in bytes) of the `p_iv` buffer + * + * \retval #PSA_SUCCESS \emptydescription + */ +typedef psa_status_t (*psa_drv_se_cipher_set_iv_t)(void *op_context, + const uint8_t *p_iv, + size_t iv_length); + +/** \brief A function that continues a previously started secure element cipher + * operation + * + * \param[in,out] op_context A hardware-specific structure for the + * previously started cipher operation + * \param[in] p_input A buffer containing the data to be + * encrypted/decrypted + * \param[in] input_size The size in bytes of the buffer pointed to + * by `p_input` + * \param[out] p_output The caller-allocated buffer where the + * output will be placed + * \param[in] output_size The allocated size in bytes of the + * `p_output` buffer + * \param[out] p_output_length After completion, will contain the number + * of bytes placed in the `p_output` buffer + * + * \retval #PSA_SUCCESS \emptydescription + */ +typedef psa_status_t (*psa_drv_se_cipher_update_t)(void *op_context, + const uint8_t *p_input, + size_t input_size, + uint8_t *p_output, + size_t output_size, + size_t *p_output_length); + +/** \brief A function that completes a previously started secure element cipher + * operation + * + * \param[in,out] op_context A hardware-specific structure for the + * previously started cipher operation + * \param[out] p_output The caller-allocated buffer where the output + * will be placed + * \param[in] output_size The allocated size in bytes of the `p_output` + * buffer + * \param[out] p_output_length After completion, will contain the number of + * bytes placed in the `p_output` buffer + * + * \retval #PSA_SUCCESS \emptydescription + */ +typedef psa_status_t (*psa_drv_se_cipher_finish_t)(void *op_context, + uint8_t *p_output, + size_t output_size, + size_t *p_output_length); + +/** \brief A function that aborts a previously started secure element cipher + * operation + * + * \param[in,out] op_context A hardware-specific structure for the + * previously started cipher operation + */ +typedef psa_status_t (*psa_drv_se_cipher_abort_t)(void *op_context); + +/** \brief A function that performs the ECB block mode for secure element + * cipher operations + * + * Note: this function should only be used with implementations that do not + * provide a needed higher-level operation. + * + * \param[in,out] drv_context The driver context structure. + * \param[in] key_slot The slot of the key to be used for the operation + * \param[in] algorithm The algorithm to be used in the cipher operation + * \param[in] direction Indicates whether the operation is an encrypt or + * decrypt + * \param[in] p_input A buffer containing the data to be + * encrypted/decrypted + * \param[in] input_size The size in bytes of the buffer pointed to by + * `p_input` + * \param[out] p_output The caller-allocated buffer where the output + * will be placed + * \param[in] output_size The allocated size in bytes of the `p_output` + * buffer + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + */ +typedef psa_status_t (*psa_drv_se_cipher_ecb_t)(psa_drv_se_context_t *drv_context, + psa_key_slot_number_t key_slot, + psa_algorithm_t algorithm, + psa_encrypt_or_decrypt_t direction, + const uint8_t *p_input, + size_t input_size, + uint8_t *p_output, + size_t output_size); + +/** + * \brief A struct containing all of the function pointers needed to implement + * cipher operations using secure elements. + * + * PSA Crypto API implementations should populate instances of the table as + * appropriate upon startup or at build time. + * + * If one of the functions is not implemented (such as + * `psa_drv_se_cipher_ecb_t`), it should be set to NULL. + */ +typedef struct { + /** The size in bytes of the hardware-specific secure element cipher + * context structure + */ + size_t MBEDTLS_PRIVATE(context_size); + /** Function that performs a cipher setup operation */ + psa_drv_se_cipher_setup_t MBEDTLS_PRIVATE(p_setup); + /** Function that sets a cipher IV (if necessary) */ + psa_drv_se_cipher_set_iv_t MBEDTLS_PRIVATE(p_set_iv); + /** Function that performs a cipher update operation */ + psa_drv_se_cipher_update_t MBEDTLS_PRIVATE(p_update); + /** Function that completes a cipher operation */ + psa_drv_se_cipher_finish_t MBEDTLS_PRIVATE(p_finish); + /** Function that aborts a cipher operation */ + psa_drv_se_cipher_abort_t MBEDTLS_PRIVATE(p_abort); + /** Function that performs ECB mode for a cipher operation + * (Danger: ECB mode should not be used directly by clients of the PSA + * Crypto Client API) + */ + psa_drv_se_cipher_ecb_t MBEDTLS_PRIVATE(p_ecb); +} psa_drv_se_cipher_t; + +/**@}*/ + +/** \defgroup se_asymmetric Secure Element Asymmetric Cryptography + * + * Since the amount of data that can (or should) be encrypted or signed using + * asymmetric keys is limited by the key size, asymmetric key operations using + * keys in a secure element must be done in single function calls. + */ +/**@{*/ + +/** + * \brief A function that signs a hash or short message with a private key in + * a secure element + * + * \param[in,out] drv_context The driver context structure. + * \param[in] key_slot Key slot of an asymmetric key pair + * \param[in] alg A signature algorithm that is compatible + * with the type of `key` + * \param[in] p_hash The hash to sign + * \param[in] hash_length Size of the `p_hash` buffer in bytes + * \param[out] p_signature Buffer where the signature is to be written + * \param[in] signature_size Size of the `p_signature` buffer in bytes + * \param[out] p_signature_length On success, the number of bytes + * that make up the returned signature value + * + * \retval #PSA_SUCCESS \emptydescription + */ +typedef psa_status_t (*psa_drv_se_asymmetric_sign_t)(psa_drv_se_context_t *drv_context, + psa_key_slot_number_t key_slot, + psa_algorithm_t alg, + const uint8_t *p_hash, + size_t hash_length, + uint8_t *p_signature, + size_t signature_size, + size_t *p_signature_length); + +/** + * \brief A function that verifies the signature a hash or short message using + * an asymmetric public key in a secure element + * + * \param[in,out] drv_context The driver context structure. + * \param[in] key_slot Key slot of a public key or an asymmetric key + * pair + * \param[in] alg A signature algorithm that is compatible with + * the type of `key` + * \param[in] p_hash The hash whose signature is to be verified + * \param[in] hash_length Size of the `p_hash` buffer in bytes + * \param[in] p_signature Buffer containing the signature to verify + * \param[in] signature_length Size of the `p_signature` buffer in bytes + * + * \retval #PSA_SUCCESS + * The signature is valid. + */ +typedef psa_status_t (*psa_drv_se_asymmetric_verify_t)(psa_drv_se_context_t *drv_context, + psa_key_slot_number_t key_slot, + psa_algorithm_t alg, + const uint8_t *p_hash, + size_t hash_length, + const uint8_t *p_signature, + size_t signature_length); + +/** + * \brief A function that encrypts a short message with an asymmetric public + * key in a secure element + * + * \param[in,out] drv_context The driver context structure. + * \param[in] key_slot Key slot of a public key or an asymmetric key + * pair + * \param[in] alg An asymmetric encryption algorithm that is + * compatible with the type of `key` + * \param[in] p_input The message to encrypt + * \param[in] input_length Size of the `p_input` buffer in bytes + * \param[in] p_salt A salt or label, if supported by the + * encryption algorithm + * If the algorithm does not support a + * salt, pass `NULL`. + * If the algorithm supports an optional + * salt and you do not want to pass a salt, + * pass `NULL`. + * For #PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is + * supported. + * \param[in] salt_length Size of the `p_salt` buffer in bytes + * If `p_salt` is `NULL`, pass 0. + * \param[out] p_output Buffer where the encrypted message is to + * be written + * \param[in] output_size Size of the `p_output` buffer in bytes + * \param[out] p_output_length On success, the number of bytes that make up + * the returned output + * + * \retval #PSA_SUCCESS \emptydescription + */ +typedef psa_status_t (*psa_drv_se_asymmetric_encrypt_t)(psa_drv_se_context_t *drv_context, + psa_key_slot_number_t key_slot, + psa_algorithm_t alg, + const uint8_t *p_input, + size_t input_length, + const uint8_t *p_salt, + size_t salt_length, + uint8_t *p_output, + size_t output_size, + size_t *p_output_length); + +/** + * \brief A function that decrypts a short message with an asymmetric private + * key in a secure element. + * + * \param[in,out] drv_context The driver context structure. + * \param[in] key_slot Key slot of an asymmetric key pair + * \param[in] alg An asymmetric encryption algorithm that is + * compatible with the type of `key` + * \param[in] p_input The message to decrypt + * \param[in] input_length Size of the `p_input` buffer in bytes + * \param[in] p_salt A salt or label, if supported by the + * encryption algorithm + * If the algorithm does not support a + * salt, pass `NULL`. + * If the algorithm supports an optional + * salt and you do not want to pass a salt, + * pass `NULL`. + * For #PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is + * supported. + * \param[in] salt_length Size of the `p_salt` buffer in bytes + * If `p_salt` is `NULL`, pass 0. + * \param[out] p_output Buffer where the decrypted message is to + * be written + * \param[in] output_size Size of the `p_output` buffer in bytes + * \param[out] p_output_length On success, the number of bytes + * that make up the returned output + * + * \retval #PSA_SUCCESS \emptydescription + */ +typedef psa_status_t (*psa_drv_se_asymmetric_decrypt_t)(psa_drv_se_context_t *drv_context, + psa_key_slot_number_t key_slot, + psa_algorithm_t alg, + const uint8_t *p_input, + size_t input_length, + const uint8_t *p_salt, + size_t salt_length, + uint8_t *p_output, + size_t output_size, + size_t *p_output_length); + +/** + * \brief A struct containing all of the function pointers needed to implement + * asymmetric cryptographic operations using secure elements. + * + * PSA Crypto API implementations should populate instances of the table as + * appropriate upon startup or at build time. + * + * If one of the functions is not implemented, it should be set to NULL. + */ +typedef struct { + /** Function that performs an asymmetric sign operation */ + psa_drv_se_asymmetric_sign_t MBEDTLS_PRIVATE(p_sign); + /** Function that performs an asymmetric verify operation */ + psa_drv_se_asymmetric_verify_t MBEDTLS_PRIVATE(p_verify); + /** Function that performs an asymmetric encrypt operation */ + psa_drv_se_asymmetric_encrypt_t MBEDTLS_PRIVATE(p_encrypt); + /** Function that performs an asymmetric decrypt operation */ + psa_drv_se_asymmetric_decrypt_t MBEDTLS_PRIVATE(p_decrypt); +} psa_drv_se_asymmetric_t; + +/**@}*/ + +/** \defgroup se_aead Secure Element Authenticated Encryption with Additional Data + * Authenticated Encryption with Additional Data (AEAD) operations with secure + * elements must be done in one function call. While this creates a burden for + * implementers as there must be sufficient space in memory for the entire + * message, it prevents decrypted data from being made available before the + * authentication operation is complete and the data is known to be authentic. + */ +/**@{*/ + +/** \brief A function that performs a secure element authenticated encryption + * operation + * + * \param[in,out] drv_context The driver context structure. + * \param[in] key_slot Slot containing the key to use. + * \param[in] algorithm The AEAD algorithm to compute + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(`alg`) is true) + * \param[in] p_nonce Nonce or IV to use + * \param[in] nonce_length Size of the `p_nonce` buffer in bytes + * \param[in] p_additional_data Additional data that will be + * authenticated but not encrypted + * \param[in] additional_data_length Size of `p_additional_data` in bytes + * \param[in] p_plaintext Data that will be authenticated and + * encrypted + * \param[in] plaintext_length Size of `p_plaintext` in bytes + * \param[out] p_ciphertext Output buffer for the authenticated and + * encrypted data. The additional data is + * not part of this output. For algorithms + * where the encrypted data and the + * authentication tag are defined as + * separate outputs, the authentication + * tag is appended to the encrypted data. + * \param[in] ciphertext_size Size of the `p_ciphertext` buffer in + * bytes + * \param[out] p_ciphertext_length On success, the size of the output in + * the `p_ciphertext` buffer + * + * \retval #PSA_SUCCESS + * Success. + */ +typedef psa_status_t (*psa_drv_se_aead_encrypt_t)(psa_drv_se_context_t *drv_context, + psa_key_slot_number_t key_slot, + psa_algorithm_t algorithm, + const uint8_t *p_nonce, + size_t nonce_length, + const uint8_t *p_additional_data, + size_t additional_data_length, + const uint8_t *p_plaintext, + size_t plaintext_length, + uint8_t *p_ciphertext, + size_t ciphertext_size, + size_t *p_ciphertext_length); + +/** A function that performs a secure element authenticated decryption operation + * + * \param[in,out] drv_context The driver context structure. + * \param[in] key_slot Slot containing the key to use + * \param[in] algorithm The AEAD algorithm to compute + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(`alg`) is true) + * \param[in] p_nonce Nonce or IV to use + * \param[in] nonce_length Size of the `p_nonce` buffer in bytes + * \param[in] p_additional_data Additional data that has been + * authenticated but not encrypted + * \param[in] additional_data_length Size of `p_additional_data` in bytes + * \param[in] p_ciphertext Data that has been authenticated and + * encrypted. + * For algorithms where the encrypted data + * and the authentication tag are defined + * as separate inputs, the buffer must + * contain the encrypted data followed by + * the authentication tag. + * \param[in] ciphertext_length Size of `p_ciphertext` in bytes + * \param[out] p_plaintext Output buffer for the decrypted data + * \param[in] plaintext_size Size of the `p_plaintext` buffer in + * bytes + * \param[out] p_plaintext_length On success, the size of the output in + * the `p_plaintext` buffer + * + * \retval #PSA_SUCCESS + * Success. + */ +typedef psa_status_t (*psa_drv_se_aead_decrypt_t)(psa_drv_se_context_t *drv_context, + psa_key_slot_number_t key_slot, + psa_algorithm_t algorithm, + const uint8_t *p_nonce, + size_t nonce_length, + const uint8_t *p_additional_data, + size_t additional_data_length, + const uint8_t *p_ciphertext, + size_t ciphertext_length, + uint8_t *p_plaintext, + size_t plaintext_size, + size_t *p_plaintext_length); + +/** + * \brief A struct containing all of the function pointers needed to implement + * secure element Authenticated Encryption with Additional Data operations + * + * PSA Crypto API implementations should populate instances of the table as + * appropriate upon startup. + * + * If one of the functions is not implemented, it should be set to NULL. + */ +typedef struct { + /** Function that performs the AEAD encrypt operation */ + psa_drv_se_aead_encrypt_t MBEDTLS_PRIVATE(p_encrypt); + /** Function that performs the AEAD decrypt operation */ + psa_drv_se_aead_decrypt_t MBEDTLS_PRIVATE(p_decrypt); +} psa_drv_se_aead_t; +/**@}*/ + +/** \defgroup se_key_management Secure Element Key Management + * Currently, key management is limited to importing keys in the clear, + * destroying keys, and exporting keys in the clear. + * Whether a key may be exported is determined by the key policies in place + * on the key slot. + */ +/**@{*/ + +/** An enumeration indicating how a key is created. + */ +typedef enum { + PSA_KEY_CREATION_IMPORT, /**< During psa_import_key() */ + PSA_KEY_CREATION_GENERATE, /**< During psa_generate_key() */ + PSA_KEY_CREATION_DERIVE, /**< During psa_key_derivation_output_key() */ + PSA_KEY_CREATION_COPY, /**< During psa_copy_key() */ + +#ifndef __DOXYGEN_ONLY__ + /** A key is being registered with mbedtls_psa_register_se_key(). + * + * The core only passes this value to + * psa_drv_se_key_management_t::p_validate_slot_number, not to + * psa_drv_se_key_management_t::p_allocate. The call to + * `p_validate_slot_number` is not followed by any other call to the + * driver: the key is considered successfully registered if the call to + * `p_validate_slot_number` succeeds, or if `p_validate_slot_number` is + * null. + * + * With this creation method, the driver must return #PSA_SUCCESS if + * the given attributes are compatible with the existing key in the slot, + * and #PSA_ERROR_DOES_NOT_EXIST if the driver can determine that there + * is no key with the specified slot number. + * + * This is an Mbed TLS extension. + */ + PSA_KEY_CREATION_REGISTER, +#endif +} psa_key_creation_method_t; + +/** \brief A function that allocates a slot for a key. + * + * To create a key in a specific slot in a secure element, the core + * first calls this function to determine a valid slot number, + * then calls a function to create the key material in that slot. + * In nominal conditions (that is, if no error occurs), + * the effect of a call to a key creation function in the PSA Cryptography + * API with a lifetime that places the key in a secure element is the + * following: + * -# The core calls psa_drv_se_key_management_t::p_allocate + * (or in some implementations + * psa_drv_se_key_management_t::p_validate_slot_number). The driver + * selects (or validates) a suitable slot number given the key attributes + * and the state of the secure element. + * -# The core calls a key creation function in the driver. + * + * The key creation functions in the PSA Cryptography API are: + * - psa_import_key(), which causes + * a call to `p_allocate` with \p method = #PSA_KEY_CREATION_IMPORT + * then a call to psa_drv_se_key_management_t::p_import. + * - psa_generate_key(), which causes + * a call to `p_allocate` with \p method = #PSA_KEY_CREATION_GENERATE + * then a call to psa_drv_se_key_management_t::p_import. + * - psa_key_derivation_output_key(), which causes + * a call to `p_allocate` with \p method = #PSA_KEY_CREATION_DERIVE + * then a call to psa_drv_se_key_derivation_t::p_derive. + * - psa_copy_key(), which causes + * a call to `p_allocate` with \p method = #PSA_KEY_CREATION_COPY + * then a call to psa_drv_se_key_management_t::p_export. + * + * In case of errors, other behaviors are possible. + * - If the PSA Cryptography subsystem dies after the first step, + * for example because the device has lost power abruptly, + * the second step may never happen, or may happen after a reset + * and re-initialization. Alternatively, after a reset and + * re-initialization, the core may call + * psa_drv_se_key_management_t::p_destroy on the slot number that + * was allocated (or validated) instead of calling a key creation function. + * - If an error occurs, the core may call + * psa_drv_se_key_management_t::p_destroy on the slot number that + * was allocated (or validated) instead of calling a key creation function. + * + * Errors and system resets also have an impact on the driver's persistent + * data. If a reset happens before the overall key creation process is + * completed (before or after the second step above), it is unspecified + * whether the persistent data after the reset is identical to what it + * was before or after the call to `p_allocate` (or `p_validate_slot_number`). + * + * \param[in,out] drv_context The driver context structure. + * \param[in,out] persistent_data A pointer to the persistent data + * that allows writing. + * \param[in] attributes Attributes of the key. + * \param method The way in which the key is being created. + * \param[out] key_slot Slot where the key will be stored. + * This must be a valid slot for a key of the + * chosen type. It must be unoccupied. + * + * \retval #PSA_SUCCESS + * Success. + * The core will record \c *key_slot as the key slot where the key + * is stored and will update the persistent data in storage. + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_INSUFFICIENT_STORAGE \emptydescription + */ +typedef psa_status_t (*psa_drv_se_allocate_key_t)( + psa_drv_se_context_t *drv_context, + void *persistent_data, + const psa_key_attributes_t *attributes, + psa_key_creation_method_t method, + psa_key_slot_number_t *key_slot); + +/** \brief A function that determines whether a slot number is valid + * for a key. + * + * To create a key in a specific slot in a secure element, the core + * first calls this function to validate the choice of slot number, + * then calls a function to create the key material in that slot. + * See the documentation of #psa_drv_se_allocate_key_t for more details. + * + * As of the PSA Cryptography API specification version 1.0, there is no way + * for applications to trigger a call to this function. However some + * implementations offer the capability to create or declare a key in + * a specific slot via implementation-specific means, generally for the + * sake of initial device provisioning or onboarding. Such a mechanism may + * be added to a future version of the PSA Cryptography API specification. + * + * This function may update the driver's persistent data through + * \p persistent_data. The core will save the updated persistent data at the + * end of the key creation process. See the description of + * ::psa_drv_se_allocate_key_t for more information. + * + * \param[in,out] drv_context The driver context structure. + * \param[in,out] persistent_data A pointer to the persistent data + * that allows writing. + * \param[in] attributes Attributes of the key. + * \param method The way in which the key is being created. + * \param[in] key_slot Slot where the key is to be stored. + * + * \retval #PSA_SUCCESS + * The given slot number is valid for a key with the given + * attributes. + * \retval #PSA_ERROR_INVALID_ARGUMENT + * The given slot number is not valid for a key with the + * given attributes. This includes the case where the slot + * number is not valid at all. + * \retval #PSA_ERROR_ALREADY_EXISTS + * There is already a key with the specified slot number. + * Drivers may choose to return this error from the key + * creation function instead. + */ +typedef psa_status_t (*psa_drv_se_validate_slot_number_t)( + psa_drv_se_context_t *drv_context, + void *persistent_data, + const psa_key_attributes_t *attributes, + psa_key_creation_method_t method, + psa_key_slot_number_t key_slot); + +/** \brief A function that imports a key into a secure element in binary format + * + * This function can support any output from psa_export_key(). Refer to the + * documentation of psa_export_key() for the format for each key type. + * + * \param[in,out] drv_context The driver context structure. + * \param key_slot Slot where the key will be stored. + * This must be a valid slot for a key of the + * chosen type. It must be unoccupied. + * \param[in] attributes The key attributes, including the lifetime, + * the key type and the usage policy. + * Drivers should not access the key size stored + * in the attributes: it may not match the + * data passed in \p data. + * Drivers can call psa_get_key_lifetime(), + * psa_get_key_type(), + * psa_get_key_usage_flags() and + * psa_get_key_algorithm() to access this + * information. + * \param[in] data Buffer containing the key data. + * \param[in] data_length Size of the \p data buffer in bytes. + * \param[out] bits On success, the key size in bits. The driver + * must determine this value after parsing the + * key according to the key type. + * This value is not used if the function fails. + * + * \retval #PSA_SUCCESS + * Success. + */ +typedef psa_status_t (*psa_drv_se_import_key_t)( + psa_drv_se_context_t *drv_context, + psa_key_slot_number_t key_slot, + const psa_key_attributes_t *attributes, + const uint8_t *data, + size_t data_length, + size_t *bits); + +/** + * \brief A function that destroys a secure element key and restore the slot to + * its default state + * + * This function destroys the content of the key from a secure element. + * Implementations shall make a best effort to ensure that any previous content + * of the slot is unrecoverable. + * + * This function returns the specified slot to its default state. + * + * \param[in,out] drv_context The driver context structure. + * \param[in,out] persistent_data A pointer to the persistent data + * that allows writing. + * \param key_slot The key slot to erase. + * + * \retval #PSA_SUCCESS + * The slot's content, if any, has been erased. + */ +typedef psa_status_t (*psa_drv_se_destroy_key_t)( + psa_drv_se_context_t *drv_context, + void *persistent_data, + psa_key_slot_number_t key_slot); + +/** + * \brief A function that exports a secure element key in binary format + * + * The output of this function can be passed to psa_import_key() to + * create an equivalent object. + * + * If a key is created with `psa_import_key()` and then exported with + * this function, it is not guaranteed that the resulting data is + * identical: the implementation may choose a different representation + * of the same key if the format permits it. + * + * This function should generate output in the same format that + * `psa_export_key()` does. Refer to the + * documentation of `psa_export_key()` for the format for each key type. + * + * \param[in,out] drv_context The driver context structure. + * \param[in] key Slot whose content is to be exported. This must + * be an occupied key slot. + * \param[out] p_data Buffer where the key data is to be written. + * \param[in] data_size Size of the `p_data` buffer in bytes. + * \param[out] p_data_length On success, the number of bytes + * that make up the key data. + * + * \retval #PSA_SUCCESS \emptydescription + * \retval #PSA_ERROR_DOES_NOT_EXIST \emptydescription + * \retval #PSA_ERROR_NOT_PERMITTED \emptydescription + * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription + * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription + * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription + * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription + */ +typedef psa_status_t (*psa_drv_se_export_key_t)(psa_drv_se_context_t *drv_context, + psa_key_slot_number_t key, + uint8_t *p_data, + size_t data_size, + size_t *p_data_length); + +/** + * \brief A function that generates a symmetric or asymmetric key on a secure + * element + * + * If the key type \c type recorded in \p attributes + * is asymmetric (#PSA_KEY_TYPE_IS_ASYMMETRIC(\c type) = 1), + * the driver may export the public key at the time of generation, + * in the format documented for psa_export_public_key() by writing it + * to the \p pubkey buffer. + * This is optional, intended for secure elements that output the + * public key at generation time and that cannot export the public key + * later. Drivers that do not need this feature should leave + * \p *pubkey_length set to 0 and should + * implement the psa_drv_key_management_t::p_export_public function. + * Some implementations do not support this feature, in which case + * \p pubkey is \c NULL and \p pubkey_size is 0. + * + * \param[in,out] drv_context The driver context structure. + * \param key_slot Slot where the key will be stored. + * This must be a valid slot for a key of the + * chosen type. It must be unoccupied. + * \param[in] attributes The key attributes, including the lifetime, + * the key type and size, and the usage policy. + * Drivers can call psa_get_key_lifetime(), + * psa_get_key_type(), psa_get_key_bits(), + * psa_get_key_usage_flags() and + * psa_get_key_algorithm() to access this + * information. + * \param[out] pubkey A buffer where the driver can write the + * public key, when generating an asymmetric + * key pair. + * This is \c NULL when generating a symmetric + * key or if the core does not support + * exporting the public key at generation time. + * \param pubkey_size The size of the `pubkey` buffer in bytes. + * This is 0 when generating a symmetric + * key or if the core does not support + * exporting the public key at generation time. + * \param[out] pubkey_length On entry, this is always 0. + * On success, the number of bytes written to + * \p pubkey. If this is 0 or unchanged on return, + * the core will not read the \p pubkey buffer, + * and will instead call the driver's + * psa_drv_key_management_t::p_export_public + * function to export the public key when needed. + */ +typedef psa_status_t (*psa_drv_se_generate_key_t)( + psa_drv_se_context_t *drv_context, + psa_key_slot_number_t key_slot, + const psa_key_attributes_t *attributes, + uint8_t *pubkey, size_t pubkey_size, size_t *pubkey_length); + +/** + * \brief A struct containing all of the function pointers needed to for secure + * element key management + * + * PSA Crypto API implementations should populate instances of the table as + * appropriate upon startup or at build time. + * + * If one of the functions is not implemented, it should be set to NULL. + */ +typedef struct { + /** Function that allocates a slot for a key. */ + psa_drv_se_allocate_key_t MBEDTLS_PRIVATE(p_allocate); + /** Function that checks the validity of a slot for a key. */ + psa_drv_se_validate_slot_number_t MBEDTLS_PRIVATE(p_validate_slot_number); + /** Function that performs a key import operation */ + psa_drv_se_import_key_t MBEDTLS_PRIVATE(p_import); + /** Function that performs a generation */ + psa_drv_se_generate_key_t MBEDTLS_PRIVATE(p_generate); + /** Function that performs a key destroy operation */ + psa_drv_se_destroy_key_t MBEDTLS_PRIVATE(p_destroy); + /** Function that performs a key export operation */ + psa_drv_se_export_key_t MBEDTLS_PRIVATE(p_export); + /** Function that performs a public key export operation */ + psa_drv_se_export_key_t MBEDTLS_PRIVATE(p_export_public); +} psa_drv_se_key_management_t; + +/**@}*/ + +/** \defgroup driver_derivation Secure Element Key Derivation and Agreement + * Key derivation is the process of generating new key material using an + * existing key and additional parameters, iterating through a basic + * cryptographic function, such as a hash. + * Key agreement is a part of cryptographic protocols that allows two parties + * to agree on the same key value, but starting from different original key + * material. + * The flows are similar, and the PSA Crypto Driver Model uses the same functions + * for both of the flows. + * + * There are two different final functions for the flows, + * `psa_drv_se_key_derivation_derive` and `psa_drv_se_key_derivation_export`. + * `psa_drv_se_key_derivation_derive` is used when the key material should be + * placed in a slot on the hardware and not exposed to the caller. + * `psa_drv_se_key_derivation_export` is used when the key material should be + * returned to the PSA Cryptographic API implementation. + * + * Different key derivation algorithms require a different number of inputs. + * Instead of having an API that takes as input variable length arrays, which + * can be problematic to manage on embedded platforms, the inputs are passed + * to the driver via a function, `psa_drv_se_key_derivation_collateral`, that + * is called multiple times with different `collateral_id`s. Thus, for a key + * derivation algorithm that required 3 parameter inputs, the flow would look + * something like: + * ~~~~~~~~~~~~~{.c} + * psa_drv_se_key_derivation_setup(kdf_algorithm, source_key, dest_key_size_bytes); + * psa_drv_se_key_derivation_collateral(kdf_algorithm_collateral_id_0, + * p_collateral_0, + * collateral_0_size); + * psa_drv_se_key_derivation_collateral(kdf_algorithm_collateral_id_1, + * p_collateral_1, + * collateral_1_size); + * psa_drv_se_key_derivation_collateral(kdf_algorithm_collateral_id_2, + * p_collateral_2, + * collateral_2_size); + * psa_drv_se_key_derivation_derive(); + * ~~~~~~~~~~~~~ + * + * key agreement example: + * ~~~~~~~~~~~~~{.c} + * psa_drv_se_key_derivation_setup(alg, source_key. dest_key_size_bytes); + * psa_drv_se_key_derivation_collateral(DHE_PUBKEY, p_pubkey, pubkey_size); + * psa_drv_se_key_derivation_export(p_session_key, + * session_key_size, + * &session_key_length); + * ~~~~~~~~~~~~~ + */ +/**@{*/ + +/** \brief A function that Sets up a secure element key derivation operation by + * specifying the algorithm and the source key sot + * + * \param[in,out] drv_context The driver context structure. + * \param[in,out] op_context A hardware-specific structure containing any + * context information for the implementation + * \param[in] kdf_alg The algorithm to be used for the key derivation + * \param[in] source_key The key to be used as the source material for + * the key derivation + * + * \retval #PSA_SUCCESS \emptydescription + */ +typedef psa_status_t (*psa_drv_se_key_derivation_setup_t)(psa_drv_se_context_t *drv_context, + void *op_context, + psa_algorithm_t kdf_alg, + psa_key_slot_number_t source_key); + +/** \brief A function that provides collateral (parameters) needed for a secure + * element key derivation or key agreement operation + * + * Since many key derivation algorithms require multiple parameters, it is + * expected that this function may be called multiple times for the same + * operation, each with a different algorithm-specific `collateral_id` + * + * \param[in,out] op_context A hardware-specific structure containing any + * context information for the implementation + * \param[in] collateral_id An ID for the collateral being provided + * \param[in] p_collateral A buffer containing the collateral data + * \param[in] collateral_size The size in bytes of the collateral + * + * \retval #PSA_SUCCESS \emptydescription + */ +typedef psa_status_t (*psa_drv_se_key_derivation_collateral_t)(void *op_context, + uint32_t collateral_id, + const uint8_t *p_collateral, + size_t collateral_size); + +/** \brief A function that performs the final secure element key derivation + * step and place the generated key material in a slot + * + * \param[in,out] op_context A hardware-specific structure containing any + * context information for the implementation + * \param[in] dest_key The slot where the generated key material + * should be placed + * + * \retval #PSA_SUCCESS \emptydescription + */ +typedef psa_status_t (*psa_drv_se_key_derivation_derive_t)(void *op_context, + psa_key_slot_number_t dest_key); + +/** \brief A function that performs the final step of a secure element key + * agreement and place the generated key material in a buffer + * + * \param[out] p_output Buffer in which to place the generated key + * material + * \param[in] output_size The size in bytes of `p_output` + * \param[out] p_output_length Upon success, contains the number of bytes of + * key material placed in `p_output` + * + * \retval #PSA_SUCCESS \emptydescription + */ +typedef psa_status_t (*psa_drv_se_key_derivation_export_t)(void *op_context, + uint8_t *p_output, + size_t output_size, + size_t *p_output_length); + +/** + * \brief A struct containing all of the function pointers needed to for secure + * element key derivation and agreement + * + * PSA Crypto API implementations should populate instances of the table as + * appropriate upon startup. + * + * If one of the functions is not implemented, it should be set to NULL. + */ +typedef struct { + /** The driver-specific size of the key derivation context */ + size_t MBEDTLS_PRIVATE(context_size); + /** Function that performs a key derivation setup */ + psa_drv_se_key_derivation_setup_t MBEDTLS_PRIVATE(p_setup); + /** Function that sets key derivation collateral */ + psa_drv_se_key_derivation_collateral_t MBEDTLS_PRIVATE(p_collateral); + /** Function that performs a final key derivation step */ + psa_drv_se_key_derivation_derive_t MBEDTLS_PRIVATE(p_derive); + /** Function that performs a final key derivation or agreement and + * exports the key */ + psa_drv_se_key_derivation_export_t MBEDTLS_PRIVATE(p_export); +} psa_drv_se_key_derivation_t; + +/**@}*/ + +/** \defgroup se_registration Secure element driver registration + */ +/**@{*/ + +/** A structure containing pointers to all the entry points of a + * secure element driver. + * + * Future versions of this specification may add extra substructures at + * the end of this structure. + */ +typedef struct { + /** The version of the driver HAL that this driver implements. + * This is a protection against loading driver binaries built against + * a different version of this specification. + * Use #PSA_DRV_SE_HAL_VERSION. + */ + uint32_t MBEDTLS_PRIVATE(hal_version); + + /** The size of the driver's persistent data in bytes. + * + * This can be 0 if the driver does not need persistent data. + * + * See the documentation of psa_drv_se_context_t::persistent_data + * for more information about why and how a driver can use + * persistent data. + */ + size_t MBEDTLS_PRIVATE(persistent_data_size); + + /** The driver initialization function. + * + * This function is called once during the initialization of the + * PSA Cryptography subsystem, before any other function of the + * driver is called. If this function returns a failure status, + * the driver will be unusable, at least until the next system reset. + * + * If this field is \c NULL, it is equivalent to a function that does + * nothing and returns #PSA_SUCCESS. + */ + psa_drv_se_init_t MBEDTLS_PRIVATE(p_init); + + const psa_drv_se_key_management_t *MBEDTLS_PRIVATE(key_management); + const psa_drv_se_mac_t *MBEDTLS_PRIVATE(mac); + const psa_drv_se_cipher_t *MBEDTLS_PRIVATE(cipher); + const psa_drv_se_aead_t *MBEDTLS_PRIVATE(aead); + const psa_drv_se_asymmetric_t *MBEDTLS_PRIVATE(asymmetric); + const psa_drv_se_key_derivation_t *MBEDTLS_PRIVATE(derivation); +} psa_drv_se_t; + +/** The current version of the secure element driver HAL. + */ +/* 0.0.0 patchlevel 5 */ +#define PSA_DRV_SE_HAL_VERSION 0x00000005 + +/** Register an external cryptoprocessor (secure element) driver. + * + * This function is only intended to be used by driver code, not by + * application code. In implementations with separation between the + * PSA cryptography module and applications, this function should + * only be available to callers that run in the same memory space as + * the cryptography module, and should not be exposed to applications + * running in a different memory space. + * + * This function may be called before psa_crypto_init(). It is + * implementation-defined whether this function may be called + * after psa_crypto_init(). + * + * \note Implementations store metadata about keys including the lifetime + * value, which contains the driver's location indicator. Therefore, + * from one instantiation of the PSA Cryptography + * library to the next one, if there is a key in storage with a certain + * lifetime value, you must always register the same driver (or an + * updated version that communicates with the same secure element) + * with the same location value. + * + * \param location The location value through which this driver will + * be exposed to applications. + * This driver will be used for all keys such that + * `location == #PSA_KEY_LIFETIME_GET_LOCATION( lifetime )`. + * The value #PSA_KEY_LOCATION_LOCAL_STORAGE is reserved + * and may not be used for drivers. Implementations + * may reserve other values. + * \param[in] methods The method table of the driver. This structure must + * remain valid for as long as the cryptography + * module keeps running. It is typically a global + * constant. + * + * \return #PSA_SUCCESS + * The driver was successfully registered. Applications can now + * use \p location to access keys through the methods passed to + * this function. + * \return #PSA_ERROR_BAD_STATE + * This function was called after the initialization of the + * cryptography module, and this implementation does not support + * driver registration at this stage. + * \return #PSA_ERROR_ALREADY_EXISTS + * There is already a registered driver for this value of \p location. + * \return #PSA_ERROR_INVALID_ARGUMENT + * \p location is a reserved value. + * \return #PSA_ERROR_NOT_SUPPORTED + * `methods->hal_version` is not supported by this implementation. + * \return #PSA_ERROR_INSUFFICIENT_MEMORY + * \return #PSA_ERROR_NOT_PERMITTED + * \return #PSA_ERROR_STORAGE_FAILURE + * \return #PSA_ERROR_DATA_CORRUPT + */ +psa_status_t psa_register_se_driver( + psa_key_location_t location, + const psa_drv_se_t *methods); + +/**@}*/ + +#ifdef __cplusplus +} +#endif + +#endif /* PSA_CRYPTO_SE_DRIVER_H */ diff --git a/include/psa/crypto_sizes.h b/include/psa/crypto_sizes.h new file mode 100644 index 0000000..d22bf10 --- /dev/null +++ b/include/psa/crypto_sizes.h @@ -0,0 +1,1282 @@ +/** + * \file psa/crypto_sizes.h + * + * \brief PSA cryptography module: Mbed TLS buffer size macros + * + * \note This file may not be included directly. Applications must + * include psa/crypto.h. + * + * This file contains the definitions of macros that are useful to + * compute buffer sizes. The signatures and semantics of these macros + * are standardized, but the definitions are not, because they depend on + * the available algorithms and, in some cases, on permitted tolerances + * on buffer sizes. + * + * In implementations with isolation between the application and the + * cryptography module, implementers should take care to ensure that + * the definitions that are exposed to applications match what the + * module implements. + * + * Macros that compute sizes whose values do not depend on the + * implementation are in crypto.h. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_SIZES_H +#define PSA_CRYPTO_SIZES_H + +/* + * Include the build-time configuration information file. Here, we do not + * include `"mbedtls/build_info.h"` directly but `"psa/build_info.h"`, which + * is basically just an alias to it. This is to ease the maintenance of the + * PSA cryptography repository which has a different build system and + * configuration. + */ +#include "psa/build_info.h" + +#define PSA_BITS_TO_BYTES(bits) (((bits) + 7u) / 8u) +#define PSA_BYTES_TO_BITS(bytes) ((bytes) * 8u) +#define PSA_MAX_OF_THREE(a, b, c) ((a) <= (b) ? (b) <= (c) ? \ + (c) : (b) : (a) <= (c) ? (c) : (a)) + +#define PSA_ROUND_UP_TO_MULTIPLE(block_size, length) \ + (((length) + (block_size) - 1) / (block_size) * (block_size)) + +/** The size of the output of psa_hash_finish(), in bytes. + * + * This is also the hash size that psa_hash_verify() expects. + * + * \param alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p alg) is true), or an HMAC algorithm + * (#PSA_ALG_HMAC(\c hash_alg) where \c hash_alg is a + * hash algorithm). + * + * \return The hash size for the specified hash algorithm. + * If the hash algorithm is not recognized, return 0. + */ +#define PSA_HASH_LENGTH(alg) \ + ( \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD5 ? 16u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_RIPEMD160 ? 20u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_1 ? 20u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_224 ? 28u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_256 ? 32u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_384 ? 48u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512 ? 64u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_224 ? 28u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_256 ? 32u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_224 ? 28u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_256 ? 32u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_384 ? 48u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_512 ? 64u : \ + 0u) + +/** The input block size of a hash algorithm, in bytes. + * + * Hash algorithms process their input data in blocks. Hash operations will + * retain any partial blocks until they have enough input to fill the block or + * until the operation is finished. + * This affects the output from psa_hash_suspend(). + * + * \param alg A hash algorithm (\c PSA_ALG_XXX value such that + * PSA_ALG_IS_HASH(\p alg) is true). + * + * \return The block size in bytes for the specified hash algorithm. + * If the hash algorithm is not recognized, return 0. + * An implementation can return either 0 or the correct size for a + * hash algorithm that it recognizes, but does not support. + */ +#define PSA_HASH_BLOCK_LENGTH(alg) \ + ( \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD5 ? 64u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_RIPEMD160 ? 64u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_1 ? 64u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_224 ? 64u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_256 ? 64u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_384 ? 128u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512 ? 128u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_224 ? 128u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_256 ? 128u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_224 ? 144u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_256 ? 136u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_384 ? 104u : \ + PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_512 ? 72u : \ + 0u) + +/** \def PSA_HASH_MAX_SIZE + * + * Maximum size of a hash. + * + * This macro expands to a compile-time constant integer. This value + * is the maximum size of a hash in bytes. + */ +/* Note: for HMAC-SHA-3, the block size is 144 bytes for HMAC-SHA3-224, + * 136 bytes for HMAC-SHA3-256, 104 bytes for SHA3-384, 72 bytes for + * HMAC-SHA3-512. */ +/* Note: PSA_HASH_MAX_SIZE should be kept in sync with MBEDTLS_MD_MAX_SIZE, + * see the note on MBEDTLS_MD_MAX_SIZE for details. */ +#if defined(PSA_WANT_ALG_SHA3_224) +#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 144u +#elif defined(PSA_WANT_ALG_SHA3_256) +#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 136u +#elif defined(PSA_WANT_ALG_SHA_512) +#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 128u +#elif defined(PSA_WANT_ALG_SHA_384) +#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 128u +#elif defined(PSA_WANT_ALG_SHA3_384) +#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 104u +#elif defined(PSA_WANT_ALG_SHA3_512) +#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 72u +#elif defined(PSA_WANT_ALG_SHA_256) +#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 64u +#elif defined(PSA_WANT_ALG_SHA_224) +#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 64u +#else /* SHA-1 or smaller */ +#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 64u +#endif + +#if defined(PSA_WANT_ALG_SHA_512) || defined(PSA_WANT_ALG_SHA3_512) +#define PSA_HASH_MAX_SIZE 64u +#elif defined(PSA_WANT_ALG_SHA_384) || defined(PSA_WANT_ALG_SHA3_384) +#define PSA_HASH_MAX_SIZE 48u +#elif defined(PSA_WANT_ALG_SHA_256) || defined(PSA_WANT_ALG_SHA3_256) +#define PSA_HASH_MAX_SIZE 32u +#elif defined(PSA_WANT_ALG_SHA_224) || defined(PSA_WANT_ALG_SHA3_224) +#define PSA_HASH_MAX_SIZE 28u +#else /* SHA-1 or smaller */ +#define PSA_HASH_MAX_SIZE 20u +#endif + +/** \def PSA_MAC_MAX_SIZE + * + * Maximum size of a MAC. + * + * This macro expands to a compile-time constant integer. This value + * is the maximum size of a MAC in bytes. + */ +/* All non-HMAC MACs have a maximum size that's smaller than the + * minimum possible value of PSA_HASH_MAX_SIZE in this implementation. */ +/* Note that the encoding of truncated MAC algorithms limits this value + * to 64 bytes. + */ +#define PSA_MAC_MAX_SIZE PSA_HASH_MAX_SIZE + +/** The length of a tag for an AEAD algorithm, in bytes. + * + * This macro can be used to allocate a buffer of sufficient size to store the + * tag output from psa_aead_finish(). + * + * See also #PSA_AEAD_TAG_MAX_SIZE. + * + * \param key_type The type of the AEAD key. + * \param key_bits The size of the AEAD key in bits. + * \param alg An AEAD algorithm + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(\p alg) is true). + * + * \return The tag length for the specified algorithm and key. + * If the AEAD algorithm does not have an identified + * tag that can be distinguished from the rest of + * the ciphertext, return 0. + * If the key type or AEAD algorithm is not + * recognized, or the parameters are incompatible, + * return 0. + */ +#define PSA_AEAD_TAG_LENGTH(key_type, key_bits, alg) \ + (PSA_AEAD_NONCE_LENGTH(key_type, alg) != 0 ? \ + PSA_ALG_AEAD_GET_TAG_LENGTH(alg) : \ + ((void) (key_bits), 0u)) + +/** The maximum tag size for all supported AEAD algorithms, in bytes. + * + * See also #PSA_AEAD_TAG_LENGTH(\p key_type, \p key_bits, \p alg). + */ +#define PSA_AEAD_TAG_MAX_SIZE 16u + +/* The maximum size of an RSA key on this implementation, in bits. + * This is a vendor-specific macro. + * + * Mbed TLS does not set a hard limit on the size of RSA keys: any key + * whose parameters fit in a bignum is accepted. However large keys can + * induce a large memory usage and long computation times. Unlike other + * auxiliary macros in this file and in crypto.h, which reflect how the + * library is configured, this macro defines how the library is + * configured. This implementation refuses to import or generate an + * RSA key whose size is larger than the value defined here. + * + * Note that an implementation may set different size limits for different + * operations, and does not need to accept all key sizes up to the limit. */ +#define PSA_VENDOR_RSA_MAX_KEY_BITS 4096u + +/* The minimum size of an RSA key on this implementation, in bits. + * This is a vendor-specific macro. + * + * Limits RSA key generation to a minimum due to avoid accidental misuse. + * This value cannot be less than 128 bits. + */ +#if defined(MBEDTLS_RSA_GEN_KEY_MIN_BITS) +#define PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS MBEDTLS_RSA_GEN_KEY_MIN_BITS +#else +#define PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS 1024 +#endif + +/* The maximum size of an DH key on this implementation, in bits. + * + * Note that an implementation may set different size limits for different + * operations, and does not need to accept all key sizes up to the limit. */ +#define PSA_VENDOR_FFDH_MAX_KEY_BITS 8192u + +/* The maximum size of an ECC key on this implementation, in bits. + * This is a vendor-specific macro. */ +#if defined(PSA_WANT_ECC_SECP_R1_521) +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 521u +#elif defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512) +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 512u +#elif defined(PSA_WANT_ECC_MONTGOMERY_448) +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 448u +#elif defined(PSA_WANT_ECC_SECP_R1_384) +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 384u +#elif defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384) +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 384u +#elif defined(PSA_WANT_ECC_SECP_R1_256) +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 256u +#elif defined(PSA_WANT_ECC_SECP_K1_256) +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 256u +#elif defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256) +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 256u +#elif defined(PSA_WANT_ECC_MONTGOMERY_255) +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 255u +#elif defined(PSA_WANT_ECC_SECP_R1_224) +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 224u +#elif defined(PSA_WANT_ECC_SECP_K1_224) +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 224u +#elif defined(PSA_WANT_ECC_SECP_R1_192) +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 192u +#elif defined(PSA_WANT_ECC_SECP_K1_192) +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 192u +#else +#define PSA_VENDOR_ECC_MAX_CURVE_BITS 0u +#endif + +/** This macro returns the maximum supported length of the PSK for the + * TLS-1.2 PSK-to-MS key derivation + * (#PSA_ALG_TLS12_PSK_TO_MS(\c hash_alg)). + * + * The maximum supported length does not depend on the chosen hash algorithm. + * + * Quoting RFC 4279, Sect 5.3: + * TLS implementations supporting these ciphersuites MUST support + * arbitrary PSK identities up to 128 octets in length, and arbitrary + * PSKs up to 64 octets in length. Supporting longer identities and + * keys is RECOMMENDED. + * + * Therefore, no implementation should define a value smaller than 64 + * for #PSA_TLS12_PSK_TO_MS_PSK_MAX_SIZE. + */ +#define PSA_TLS12_PSK_TO_MS_PSK_MAX_SIZE 128u + +/* The expected size of input passed to psa_tls12_ecjpake_to_pms_input, + * which is expected to work with P-256 curve only. */ +#define PSA_TLS12_ECJPAKE_TO_PMS_INPUT_SIZE 65u + +/* The size of a serialized K.X coordinate to be used in + * psa_tls12_ecjpake_to_pms_input. This function only accepts the P-256 + * curve. */ +#define PSA_TLS12_ECJPAKE_TO_PMS_DATA_SIZE 32u + +/* The maximum number of iterations for PBKDF2 on this implementation, in bits. + * This is a vendor-specific macro. This can be configured if necessary */ +#define PSA_VENDOR_PBKDF2_MAX_ITERATIONS 0xffffffffU + +/** The maximum size of a block cipher. */ +#define PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE 16u + +/** The size of the output of psa_mac_sign_finish(), in bytes. + * + * This is also the MAC size that psa_mac_verify_finish() expects. + * + * \warning This macro may evaluate its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * \param key_type The type of the MAC key. + * \param key_bits The size of the MAC key in bits. + * \param alg A MAC algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_MAC(\p alg) is true). + * + * \return The MAC size for the specified algorithm with + * the specified key parameters. + * \return 0 if the MAC algorithm is not recognized. + * \return Either 0 or the correct size for a MAC algorithm that + * the implementation recognizes, but does not support. + * \return Unspecified if the key parameters are not consistent + * with the algorithm. + */ +#define PSA_MAC_LENGTH(key_type, key_bits, alg) \ + ((alg) & PSA_ALG_MAC_TRUNCATION_MASK ? PSA_MAC_TRUNCATED_LENGTH(alg) : \ + PSA_ALG_IS_HMAC(alg) ? PSA_HASH_LENGTH(PSA_ALG_HMAC_GET_HASH(alg)) : \ + PSA_ALG_IS_BLOCK_CIPHER_MAC(alg) ? PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) : \ + ((void) (key_type), (void) (key_bits), 0u)) + +/** The maximum size of the output of psa_aead_encrypt(), in bytes. + * + * If the size of the ciphertext buffer is at least this large, it is + * guaranteed that psa_aead_encrypt() will not fail due to an + * insufficient buffer size. Depending on the algorithm, the actual size of + * the ciphertext may be smaller. + * + * See also #PSA_AEAD_ENCRYPT_OUTPUT_MAX_SIZE(\p plaintext_length). + * + * \warning This macro may evaluate its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * \param key_type A symmetric key type that is + * compatible with algorithm \p alg. + * \param alg An AEAD algorithm + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(\p alg) is true). + * \param plaintext_length Size of the plaintext in bytes. + * + * \return The AEAD ciphertext size for the specified + * algorithm. + * If the key type or AEAD algorithm is not + * recognized, or the parameters are incompatible, + * return 0. + */ +#define PSA_AEAD_ENCRYPT_OUTPUT_SIZE(key_type, alg, plaintext_length) \ + (PSA_AEAD_NONCE_LENGTH(key_type, alg) != 0 ? \ + (plaintext_length) + PSA_ALG_AEAD_GET_TAG_LENGTH(alg) : \ + 0u) + +/** A sufficient output buffer size for psa_aead_encrypt(), for any of the + * supported key types and AEAD algorithms. + * + * If the size of the ciphertext buffer is at least this large, it is guaranteed + * that psa_aead_encrypt() will not fail due to an insufficient buffer size. + * + * \note This macro returns a compile-time constant if its arguments are + * compile-time constants. + * + * See also #PSA_AEAD_ENCRYPT_OUTPUT_SIZE(\p key_type, \p alg, + * \p plaintext_length). + * + * \param plaintext_length Size of the plaintext in bytes. + * + * \return A sufficient output buffer size for any of the + * supported key types and AEAD algorithms. + * + */ +#define PSA_AEAD_ENCRYPT_OUTPUT_MAX_SIZE(plaintext_length) \ + ((plaintext_length) + PSA_AEAD_TAG_MAX_SIZE) + + +/** The maximum size of the output of psa_aead_decrypt(), in bytes. + * + * If the size of the plaintext buffer is at least this large, it is + * guaranteed that psa_aead_decrypt() will not fail due to an + * insufficient buffer size. Depending on the algorithm, the actual size of + * the plaintext may be smaller. + * + * See also #PSA_AEAD_DECRYPT_OUTPUT_MAX_SIZE(\p ciphertext_length). + * + * \warning This macro may evaluate its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * \param key_type A symmetric key type that is + * compatible with algorithm \p alg. + * \param alg An AEAD algorithm + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(\p alg) is true). + * \param ciphertext_length Size of the plaintext in bytes. + * + * \return The AEAD ciphertext size for the specified + * algorithm. + * If the key type or AEAD algorithm is not + * recognized, or the parameters are incompatible, + * return 0. + */ +#define PSA_AEAD_DECRYPT_OUTPUT_SIZE(key_type, alg, ciphertext_length) \ + (PSA_AEAD_NONCE_LENGTH(key_type, alg) != 0 && \ + (ciphertext_length) > PSA_ALG_AEAD_GET_TAG_LENGTH(alg) ? \ + (ciphertext_length) - PSA_ALG_AEAD_GET_TAG_LENGTH(alg) : \ + 0u) + +/** A sufficient output buffer size for psa_aead_decrypt(), for any of the + * supported key types and AEAD algorithms. + * + * If the size of the plaintext buffer is at least this large, it is guaranteed + * that psa_aead_decrypt() will not fail due to an insufficient buffer size. + * + * \note This macro returns a compile-time constant if its arguments are + * compile-time constants. + * + * See also #PSA_AEAD_DECRYPT_OUTPUT_SIZE(\p key_type, \p alg, + * \p ciphertext_length). + * + * \param ciphertext_length Size of the ciphertext in bytes. + * + * \return A sufficient output buffer size for any of the + * supported key types and AEAD algorithms. + * + */ +#define PSA_AEAD_DECRYPT_OUTPUT_MAX_SIZE(ciphertext_length) \ + (ciphertext_length) + +/** The default nonce size for an AEAD algorithm, in bytes. + * + * This macro can be used to allocate a buffer of sufficient size to + * store the nonce output from #psa_aead_generate_nonce(). + * + * See also #PSA_AEAD_NONCE_MAX_SIZE. + * + * \note This is not the maximum size of nonce supported as input to + * #psa_aead_set_nonce(), #psa_aead_encrypt() or #psa_aead_decrypt(), + * just the default size that is generated by #psa_aead_generate_nonce(). + * + * \warning This macro may evaluate its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * \param key_type A symmetric key type that is compatible with + * algorithm \p alg. + * + * \param alg An AEAD algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(\p alg) is true). + * + * \return The default nonce size for the specified key type and algorithm. + * If the key type or AEAD algorithm is not recognized, + * or the parameters are incompatible, return 0. + */ +#define PSA_AEAD_NONCE_LENGTH(key_type, alg) \ + (PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) == 16 ? \ + MBEDTLS_PSA_ALG_AEAD_EQUAL(alg, PSA_ALG_CCM) ? 13u : \ + MBEDTLS_PSA_ALG_AEAD_EQUAL(alg, PSA_ALG_GCM) ? 12u : \ + 0u : \ + (key_type) == PSA_KEY_TYPE_CHACHA20 && \ + MBEDTLS_PSA_ALG_AEAD_EQUAL(alg, PSA_ALG_CHACHA20_POLY1305) ? 12u : \ + 0u) + +/** The maximum default nonce size among all supported pairs of key types and + * AEAD algorithms, in bytes. + * + * This is equal to or greater than any value that #PSA_AEAD_NONCE_LENGTH() + * may return. + * + * \note This is not the maximum size of nonce supported as input to + * #psa_aead_set_nonce(), #psa_aead_encrypt() or #psa_aead_decrypt(), + * just the largest size that may be generated by + * #psa_aead_generate_nonce(). + */ +#define PSA_AEAD_NONCE_MAX_SIZE 13u + +/** A sufficient output buffer size for psa_aead_update(). + * + * If the size of the output buffer is at least this large, it is + * guaranteed that psa_aead_update() will not fail due to an + * insufficient buffer size. The actual size of the output may be smaller + * in any given call. + * + * See also #PSA_AEAD_UPDATE_OUTPUT_MAX_SIZE(\p input_length). + * + * \warning This macro may evaluate its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * \param key_type A symmetric key type that is + * compatible with algorithm \p alg. + * \param alg An AEAD algorithm + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(\p alg) is true). + * \param input_length Size of the input in bytes. + * + * \return A sufficient output buffer size for the specified + * algorithm. + * If the key type or AEAD algorithm is not + * recognized, or the parameters are incompatible, + * return 0. + */ +/* For all the AEAD modes defined in this specification, it is possible + * to emit output without delay. However, hardware may not always be + * capable of this. So for modes based on a block cipher, allow the + * implementation to delay the output until it has a full block. */ +#define PSA_AEAD_UPDATE_OUTPUT_SIZE(key_type, alg, input_length) \ + (PSA_AEAD_NONCE_LENGTH(key_type, alg) != 0 ? \ + PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) ? \ + PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type), (input_length)) : \ + (input_length) : \ + 0u) + +/** A sufficient output buffer size for psa_aead_update(), for any of the + * supported key types and AEAD algorithms. + * + * If the size of the output buffer is at least this large, it is guaranteed + * that psa_aead_update() will not fail due to an insufficient buffer size. + * + * See also #PSA_AEAD_UPDATE_OUTPUT_SIZE(\p key_type, \p alg, \p input_length). + * + * \param input_length Size of the input in bytes. + */ +#define PSA_AEAD_UPDATE_OUTPUT_MAX_SIZE(input_length) \ + (PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE, (input_length))) + +/** A sufficient ciphertext buffer size for psa_aead_finish(). + * + * If the size of the ciphertext buffer is at least this large, it is + * guaranteed that psa_aead_finish() will not fail due to an + * insufficient ciphertext buffer size. The actual size of the output may + * be smaller in any given call. + * + * See also #PSA_AEAD_FINISH_OUTPUT_MAX_SIZE. + * + * \param key_type A symmetric key type that is + compatible with algorithm \p alg. + * \param alg An AEAD algorithm + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(\p alg) is true). + * + * \return A sufficient ciphertext buffer size for the + * specified algorithm. + * If the key type or AEAD algorithm is not + * recognized, or the parameters are incompatible, + * return 0. + */ +#define PSA_AEAD_FINISH_OUTPUT_SIZE(key_type, alg) \ + (PSA_AEAD_NONCE_LENGTH(key_type, alg) != 0 && \ + PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) ? \ + PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) : \ + 0u) + +/** A sufficient ciphertext buffer size for psa_aead_finish(), for any of the + * supported key types and AEAD algorithms. + * + * See also #PSA_AEAD_FINISH_OUTPUT_SIZE(\p key_type, \p alg). + */ +#define PSA_AEAD_FINISH_OUTPUT_MAX_SIZE (PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE) + +/** A sufficient plaintext buffer size for psa_aead_verify(). + * + * If the size of the plaintext buffer is at least this large, it is + * guaranteed that psa_aead_verify() will not fail due to an + * insufficient plaintext buffer size. The actual size of the output may + * be smaller in any given call. + * + * See also #PSA_AEAD_VERIFY_OUTPUT_MAX_SIZE. + * + * \param key_type A symmetric key type that is + * compatible with algorithm \p alg. + * \param alg An AEAD algorithm + * (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(\p alg) is true). + * + * \return A sufficient plaintext buffer size for the + * specified algorithm. + * If the key type or AEAD algorithm is not + * recognized, or the parameters are incompatible, + * return 0. + */ +#define PSA_AEAD_VERIFY_OUTPUT_SIZE(key_type, alg) \ + (PSA_AEAD_NONCE_LENGTH(key_type, alg) != 0 && \ + PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) ? \ + PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) : \ + 0u) + +/** A sufficient plaintext buffer size for psa_aead_verify(), for any of the + * supported key types and AEAD algorithms. + * + * See also #PSA_AEAD_VERIFY_OUTPUT_SIZE(\p key_type, \p alg). + */ +#define PSA_AEAD_VERIFY_OUTPUT_MAX_SIZE (PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE) + +#define PSA_RSA_MINIMUM_PADDING_SIZE(alg) \ + (PSA_ALG_IS_RSA_OAEP(alg) ? \ + 2u * PSA_HASH_LENGTH(PSA_ALG_RSA_OAEP_GET_HASH(alg)) + 1u : \ + 11u /*PKCS#1v1.5*/) + +/** + * \brief ECDSA signature size for a given curve bit size + * + * \param curve_bits Curve size in bits. + * \return Signature size in bytes. + * + * \note This macro returns a compile-time constant if its argument is one. + */ +#define PSA_ECDSA_SIGNATURE_SIZE(curve_bits) \ + (PSA_BITS_TO_BYTES(curve_bits) * 2u) + +/** Sufficient signature buffer size for psa_sign_hash(). + * + * This macro returns a sufficient buffer size for a signature using a key + * of the specified type and size, with the specified algorithm. + * Note that the actual size of the signature may be smaller + * (some algorithms produce a variable-size signature). + * + * \warning This function may call its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * \param key_type An asymmetric key type (this may indifferently be a + * key pair type or a public key type). + * \param key_bits The size of the key in bits. + * \param alg The signature algorithm. + * + * \return If the parameters are valid and supported, return + * a buffer size in bytes that guarantees that + * psa_sign_hash() will not fail with + * #PSA_ERROR_BUFFER_TOO_SMALL. + * If the parameters are a valid combination that is not supported, + * return either a sensible size or 0. + * If the parameters are not valid, the + * return value is unspecified. + */ +#define PSA_SIGN_OUTPUT_SIZE(key_type, key_bits, alg) \ + (PSA_KEY_TYPE_IS_RSA(key_type) ? ((void) alg, PSA_BITS_TO_BYTES(key_bits)) : \ + PSA_KEY_TYPE_IS_ECC(key_type) ? PSA_ECDSA_SIGNATURE_SIZE(key_bits) : \ + ((void) alg, 0u)) + +#define PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE \ + PSA_ECDSA_SIGNATURE_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) + +/** \def PSA_SIGNATURE_MAX_SIZE + * + * Maximum size of an asymmetric signature. + * + * This macro expands to a compile-time constant integer. This value + * is the maximum size of a signature in bytes. + */ +#define PSA_SIGNATURE_MAX_SIZE 1 + +#if (defined(PSA_WANT_ALG_ECDSA) || defined(PSA_WANT_ALG_DETERMINISTIC_ECDSA)) && \ + (PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE > PSA_SIGNATURE_MAX_SIZE) +#undef PSA_SIGNATURE_MAX_SIZE +#define PSA_SIGNATURE_MAX_SIZE PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE +#endif +#if (defined(PSA_WANT_ALG_RSA_PKCS1V15_SIGN) || defined(PSA_WANT_ALG_RSA_PSS)) && \ + (PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS) > PSA_SIGNATURE_MAX_SIZE) +#undef PSA_SIGNATURE_MAX_SIZE +#define PSA_SIGNATURE_MAX_SIZE PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS) +#endif + +/** Sufficient output buffer size for psa_asymmetric_encrypt(). + * + * This macro returns a sufficient buffer size for a ciphertext produced using + * a key of the specified type and size, with the specified algorithm. + * Note that the actual size of the ciphertext may be smaller, depending + * on the algorithm. + * + * \warning This function may call its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * \param key_type An asymmetric key type (this may indifferently be a + * key pair type or a public key type). + * \param key_bits The size of the key in bits. + * \param alg The asymmetric encryption algorithm. + * + * \return If the parameters are valid and supported, return + * a buffer size in bytes that guarantees that + * psa_asymmetric_encrypt() will not fail with + * #PSA_ERROR_BUFFER_TOO_SMALL. + * If the parameters are a valid combination that is not supported, + * return either a sensible size or 0. + * If the parameters are not valid, the + * return value is unspecified. + */ +#define PSA_ASYMMETRIC_ENCRYPT_OUTPUT_SIZE(key_type, key_bits, alg) \ + (PSA_KEY_TYPE_IS_RSA(key_type) ? \ + ((void) alg, PSA_BITS_TO_BYTES(key_bits)) : \ + 0u) + +/** A sufficient output buffer size for psa_asymmetric_encrypt(), for any + * supported asymmetric encryption. + * + * See also #PSA_ASYMMETRIC_ENCRYPT_OUTPUT_SIZE(\p key_type, \p key_bits, \p alg). + */ +/* This macro assumes that RSA is the only supported asymmetric encryption. */ +#define PSA_ASYMMETRIC_ENCRYPT_OUTPUT_MAX_SIZE \ + (PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS)) + +/** Sufficient output buffer size for psa_asymmetric_decrypt(). + * + * This macro returns a sufficient buffer size for a plaintext produced using + * a key of the specified type and size, with the specified algorithm. + * Note that the actual size of the plaintext may be smaller, depending + * on the algorithm. + * + * \warning This function may call its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * \param key_type An asymmetric key type (this may indifferently be a + * key pair type or a public key type). + * \param key_bits The size of the key in bits. + * \param alg The asymmetric encryption algorithm. + * + * \return If the parameters are valid and supported, return + * a buffer size in bytes that guarantees that + * psa_asymmetric_decrypt() will not fail with + * #PSA_ERROR_BUFFER_TOO_SMALL. + * If the parameters are a valid combination that is not supported, + * return either a sensible size or 0. + * If the parameters are not valid, the + * return value is unspecified. + */ +#define PSA_ASYMMETRIC_DECRYPT_OUTPUT_SIZE(key_type, key_bits, alg) \ + (PSA_KEY_TYPE_IS_RSA(key_type) ? \ + PSA_BITS_TO_BYTES(key_bits) - PSA_RSA_MINIMUM_PADDING_SIZE(alg) : \ + 0u) + +/** A sufficient output buffer size for psa_asymmetric_decrypt(), for any + * supported asymmetric decryption. + * + * This macro assumes that RSA is the only supported asymmetric encryption. + * + * See also #PSA_ASYMMETRIC_DECRYPT_OUTPUT_SIZE(\p key_type, \p key_bits, \p alg). + */ +#define PSA_ASYMMETRIC_DECRYPT_OUTPUT_MAX_SIZE \ + (PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS)) + +/* Maximum size of the ASN.1 encoding of an INTEGER with the specified + * number of bits. + * + * This definition assumes that bits <= 2^19 - 9 so that the length field + * is at most 3 bytes. The length of the encoding is the length of the + * bit string padded to a whole number of bytes plus: + * - 1 type byte; + * - 1 to 3 length bytes; + * - 0 to 1 bytes of leading 0 due to the sign bit. + */ +#define PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE(bits) \ + ((bits) / 8u + 5u) + +/* Maximum size of the export encoding of an RSA public key. + * Assumes that the public exponent is less than 2^32. + * + * RSAPublicKey ::= SEQUENCE { + * modulus INTEGER, -- n + * publicExponent INTEGER } -- e + * + * - 4 bytes of SEQUENCE overhead; + * - n : INTEGER; + * - 7 bytes for the public exponent. + */ +#define PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(key_bits) \ + (PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE(key_bits) + 11u) + +/* Maximum size of the export encoding of an RSA key pair. + * Assumes that the public exponent is less than 2^32 and that the size + * difference between the two primes is at most 1 bit. + * + * RSAPrivateKey ::= SEQUENCE { + * version Version, -- 0 + * modulus INTEGER, -- N-bit + * publicExponent INTEGER, -- 32-bit + * privateExponent INTEGER, -- N-bit + * prime1 INTEGER, -- N/2-bit + * prime2 INTEGER, -- N/2-bit + * exponent1 INTEGER, -- N/2-bit + * exponent2 INTEGER, -- N/2-bit + * coefficient INTEGER, -- N/2-bit + * } + * + * - 4 bytes of SEQUENCE overhead; + * - 3 bytes of version; + * - 7 half-size INTEGERs plus 2 full-size INTEGERs, + * overapproximated as 9 half-size INTEGERS; + * - 7 bytes for the public exponent. + */ +#define PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(key_bits) \ + (9u * PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE((key_bits) / 2u + 1u) + 14u) + +/* Maximum size of the export encoding of a DSA public key. + * + * SubjectPublicKeyInfo ::= SEQUENCE { + * algorithm AlgorithmIdentifier, + * subjectPublicKey BIT STRING } -- contains DSAPublicKey + * AlgorithmIdentifier ::= SEQUENCE { + * algorithm OBJECT IDENTIFIER, + * parameters Dss-Params } -- SEQUENCE of 3 INTEGERs + * DSAPublicKey ::= INTEGER -- public key, Y + * + * - 3 * 4 bytes of SEQUENCE overhead; + * - 1 + 1 + 7 bytes of algorithm (DSA OID); + * - 4 bytes of BIT STRING overhead; + * - 3 full-size INTEGERs (p, g, y); + * - 1 + 1 + 32 bytes for 1 sub-size INTEGER (q <= 256 bits). + */ +#define PSA_KEY_EXPORT_DSA_PUBLIC_KEY_MAX_SIZE(key_bits) \ + (PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE(key_bits) * 3u + 59u) + +/* Maximum size of the export encoding of a DSA key pair. + * + * DSAPrivateKey ::= SEQUENCE { + * version Version, -- 0 + * prime INTEGER, -- p + * subprime INTEGER, -- q + * generator INTEGER, -- g + * public INTEGER, -- y + * private INTEGER, -- x + * } + * + * - 4 bytes of SEQUENCE overhead; + * - 3 bytes of version; + * - 3 full-size INTEGERs (p, g, y); + * - 2 * (1 + 1 + 32) bytes for 2 sub-size INTEGERs (q, x <= 256 bits). + */ +#define PSA_KEY_EXPORT_DSA_KEY_PAIR_MAX_SIZE(key_bits) \ + (PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE(key_bits) * 3u + 75u) + +/* Maximum size of the export encoding of an ECC public key. + * + * The representation of an ECC public key is: + * - The byte 0x04; + * - `x_P` as a `ceiling(m/8)`-byte string, big-endian; + * - `y_P` as a `ceiling(m/8)`-byte string, big-endian; + * - where m is the bit size associated with the curve. + * + * - 1 byte + 2 * point size. + */ +#define PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(key_bits) \ + (2u * PSA_BITS_TO_BYTES(key_bits) + 1u) + +/* Maximum size of the export encoding of an ECC key pair. + * + * An ECC key pair is represented by the secret value. + */ +#define PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(key_bits) \ + (PSA_BITS_TO_BYTES(key_bits)) + +/* Maximum size of the export encoding of an DH key pair. + * + * An DH key pair is represented by the secret value. + */ +#define PSA_KEY_EXPORT_FFDH_KEY_PAIR_MAX_SIZE(key_bits) \ + (PSA_BITS_TO_BYTES(key_bits)) + +/* Maximum size of the export encoding of an DH public key. + */ +#define PSA_KEY_EXPORT_FFDH_PUBLIC_KEY_MAX_SIZE(key_bits) \ + (PSA_BITS_TO_BYTES(key_bits)) + +/** Sufficient output buffer size for psa_export_key() or + * psa_export_public_key(). + * + * This macro returns a compile-time constant if its arguments are + * compile-time constants. + * + * \warning This macro may evaluate its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * The following code illustrates how to allocate enough memory to export + * a key by querying the key type and size at runtime. + * \code{c} + * psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT; + * psa_status_t status; + * status = psa_get_key_attributes(key, &attributes); + * if (status != PSA_SUCCESS) handle_error(...); + * psa_key_type_t key_type = psa_get_key_type(&attributes); + * size_t key_bits = psa_get_key_bits(&attributes); + * size_t buffer_size = PSA_EXPORT_KEY_OUTPUT_SIZE(key_type, key_bits); + * psa_reset_key_attributes(&attributes); + * uint8_t *buffer = malloc(buffer_size); + * if (buffer == NULL) handle_error(...); + * size_t buffer_length; + * status = psa_export_key(key, buffer, buffer_size, &buffer_length); + * if (status != PSA_SUCCESS) handle_error(...); + * \endcode + * + * \param key_type A supported key type. + * \param key_bits The size of the key in bits. + * + * \return If the parameters are valid and supported, return + * a buffer size in bytes that guarantees that + * psa_export_key() or psa_export_public_key() will not fail with + * #PSA_ERROR_BUFFER_TOO_SMALL. + * If the parameters are a valid combination that is not supported, + * return either a sensible size or 0. + * If the parameters are not valid, the return value is unspecified. + */ +#define PSA_EXPORT_KEY_OUTPUT_SIZE(key_type, key_bits) \ + (PSA_KEY_TYPE_IS_UNSTRUCTURED(key_type) ? PSA_BITS_TO_BYTES(key_bits) : \ + PSA_KEY_TYPE_IS_DH(key_type) ? PSA_BITS_TO_BYTES(key_bits) : \ + (key_type) == PSA_KEY_TYPE_RSA_KEY_PAIR ? PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(key_bits) : \ + (key_type) == PSA_KEY_TYPE_RSA_PUBLIC_KEY ? PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(key_bits) : \ + (key_type) == PSA_KEY_TYPE_DSA_KEY_PAIR ? PSA_KEY_EXPORT_DSA_KEY_PAIR_MAX_SIZE(key_bits) : \ + (key_type) == PSA_KEY_TYPE_DSA_PUBLIC_KEY ? PSA_KEY_EXPORT_DSA_PUBLIC_KEY_MAX_SIZE(key_bits) : \ + PSA_KEY_TYPE_IS_ECC_KEY_PAIR(key_type) ? PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(key_bits) : \ + PSA_KEY_TYPE_IS_ECC_PUBLIC_KEY(key_type) ? PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(key_bits) : \ + 0u) + +/** Sufficient output buffer size for psa_export_public_key(). + * + * This macro returns a compile-time constant if its arguments are + * compile-time constants. + * + * \warning This macro may evaluate its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * The following code illustrates how to allocate enough memory to export + * a public key by querying the key type and size at runtime. + * \code{c} + * psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT; + * psa_status_t status; + * status = psa_get_key_attributes(key, &attributes); + * if (status != PSA_SUCCESS) handle_error(...); + * psa_key_type_t key_type = psa_get_key_type(&attributes); + * size_t key_bits = psa_get_key_bits(&attributes); + * size_t buffer_size = PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE(key_type, key_bits); + * psa_reset_key_attributes(&attributes); + * uint8_t *buffer = malloc(buffer_size); + * if (buffer == NULL) handle_error(...); + * size_t buffer_length; + * status = psa_export_public_key(key, buffer, buffer_size, &buffer_length); + * if (status != PSA_SUCCESS) handle_error(...); + * \endcode + * + * \param key_type A public key or key pair key type. + * \param key_bits The size of the key in bits. + * + * \return If the parameters are valid and supported, return + * a buffer size in bytes that guarantees that + * psa_export_public_key() will not fail with + * #PSA_ERROR_BUFFER_TOO_SMALL. + * If the parameters are a valid combination that is not + * supported, return either a sensible size or 0. + * If the parameters are not valid, + * the return value is unspecified. + * + * If the parameters are valid and supported, + * return the same result as + * #PSA_EXPORT_KEY_OUTPUT_SIZE( + * \p #PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(\p key_type), + * \p key_bits). + */ +#define PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE(key_type, key_bits) \ + (PSA_KEY_TYPE_IS_RSA(key_type) ? PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(key_bits) : \ + PSA_KEY_TYPE_IS_ECC(key_type) ? PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(key_bits) : \ + PSA_KEY_TYPE_IS_DH(key_type) ? PSA_BITS_TO_BYTES(key_bits) : \ + 0u) + +/** Sufficient buffer size for exporting any asymmetric key pair. + * + * This macro expands to a compile-time constant integer. This value is + * a sufficient buffer size when calling psa_export_key() to export any + * asymmetric key pair, regardless of the exact key type and key size. + * + * See also #PSA_EXPORT_KEY_OUTPUT_SIZE(\p key_type, \p key_bits). + */ +#define PSA_EXPORT_KEY_PAIR_MAX_SIZE 1 + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC) && \ + (PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) > \ + PSA_EXPORT_KEY_PAIR_MAX_SIZE) +#undef PSA_EXPORT_KEY_PAIR_MAX_SIZE +#define PSA_EXPORT_KEY_PAIR_MAX_SIZE \ + PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) +#endif +#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_BASIC) && \ + (PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) > \ + PSA_EXPORT_KEY_PAIR_MAX_SIZE) +#undef PSA_EXPORT_KEY_PAIR_MAX_SIZE +#define PSA_EXPORT_KEY_PAIR_MAX_SIZE \ + PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) +#endif +#if defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_BASIC) && \ + (PSA_KEY_EXPORT_FFDH_KEY_PAIR_MAX_SIZE(PSA_VENDOR_FFDH_MAX_KEY_BITS) > \ + PSA_EXPORT_KEY_PAIR_MAX_SIZE) +#undef PSA_EXPORT_KEY_PAIR_MAX_SIZE +#define PSA_EXPORT_KEY_PAIR_MAX_SIZE \ + PSA_KEY_EXPORT_FFDH_KEY_PAIR_MAX_SIZE(PSA_VENDOR_FFDH_MAX_KEY_BITS) +#endif + +/** Sufficient buffer size for exporting any asymmetric public key. + * + * This macro expands to a compile-time constant integer. This value is + * a sufficient buffer size when calling psa_export_key() or + * psa_export_public_key() to export any asymmetric public key, + * regardless of the exact key type and key size. + * + * See also #PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE(\p key_type, \p key_bits). + */ +#define PSA_EXPORT_PUBLIC_KEY_MAX_SIZE 1 + +#if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY) && \ + (PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) > \ + PSA_EXPORT_PUBLIC_KEY_MAX_SIZE) +#undef PSA_EXPORT_PUBLIC_KEY_MAX_SIZE +#define PSA_EXPORT_PUBLIC_KEY_MAX_SIZE \ + PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) +#endif +#if defined(PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY) && \ + (PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) > \ + PSA_EXPORT_PUBLIC_KEY_MAX_SIZE) +#undef PSA_EXPORT_PUBLIC_KEY_MAX_SIZE +#define PSA_EXPORT_PUBLIC_KEY_MAX_SIZE \ + PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) +#endif +#if defined(PSA_WANT_KEY_TYPE_DH_PUBLIC_KEY) && \ + (PSA_KEY_EXPORT_FFDH_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_FFDH_MAX_KEY_BITS) > \ + PSA_EXPORT_PUBLIC_KEY_MAX_SIZE) +#undef PSA_EXPORT_PUBLIC_KEY_MAX_SIZE +#define PSA_EXPORT_PUBLIC_KEY_MAX_SIZE \ + PSA_KEY_EXPORT_FFDH_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_FFDH_MAX_KEY_BITS) +#endif + +/** Sufficient output buffer size for psa_raw_key_agreement(). + * + * This macro returns a compile-time constant if its arguments are + * compile-time constants. + * + * \warning This macro may evaluate its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * See also #PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE. + * + * \param key_type A supported key type. + * \param key_bits The size of the key in bits. + * + * \return If the parameters are valid and supported, return + * a buffer size in bytes that guarantees that + * psa_raw_key_agreement() will not fail with + * #PSA_ERROR_BUFFER_TOO_SMALL. + * If the parameters are a valid combination that + * is not supported, return either a sensible size or 0. + * If the parameters are not valid, + * the return value is unspecified. + */ +#define PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE(key_type, key_bits) \ + ((PSA_KEY_TYPE_IS_ECC_KEY_PAIR(key_type) || \ + PSA_KEY_TYPE_IS_DH_KEY_PAIR(key_type)) ? PSA_BITS_TO_BYTES(key_bits) : 0u) + +/** Maximum size of the output from psa_raw_key_agreement(). + * + * This macro expands to a compile-time constant integer. This value is the + * maximum size of the output any raw key agreement algorithm, in bytes. + * + * See also #PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE(\p key_type, \p key_bits). + */ +#define PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE 1 + +#if defined(PSA_WANT_ALG_ECDH) && \ + (PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS) > PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE) +#undef PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE +#define PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS) +#endif +#if defined(PSA_WANT_ALG_FFDH) && \ + (PSA_BITS_TO_BYTES(PSA_VENDOR_FFDH_MAX_KEY_BITS) > PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE) +#undef PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE +#define PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE PSA_BITS_TO_BYTES(PSA_VENDOR_FFDH_MAX_KEY_BITS) +#endif + +/** The default IV size for a cipher algorithm, in bytes. + * + * The IV that is generated as part of a call to #psa_cipher_encrypt() is always + * the default IV length for the algorithm. + * + * This macro can be used to allocate a buffer of sufficient size to + * store the IV output from #psa_cipher_generate_iv() when using + * a multi-part cipher operation. + * + * See also #PSA_CIPHER_IV_MAX_SIZE. + * + * \warning This macro may evaluate its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * \param key_type A symmetric key type that is compatible with algorithm \p alg. + * + * \param alg A cipher algorithm (\c PSA_ALG_XXX value such that #PSA_ALG_IS_CIPHER(\p alg) is true). + * + * \return The default IV size for the specified key type and algorithm. + * If the algorithm does not use an IV, return 0. + * If the key type or cipher algorithm is not recognized, + * or the parameters are incompatible, return 0. + */ +#define PSA_CIPHER_IV_LENGTH(key_type, alg) \ + (PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) > 1 && \ + ((alg) == PSA_ALG_CTR || \ + (alg) == PSA_ALG_CFB || \ + (alg) == PSA_ALG_OFB || \ + (alg) == PSA_ALG_XTS || \ + (alg) == PSA_ALG_CBC_NO_PADDING || \ + (alg) == PSA_ALG_CBC_PKCS7) ? PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) : \ + (key_type) == PSA_KEY_TYPE_CHACHA20 && \ + (alg) == PSA_ALG_STREAM_CIPHER ? 12u : \ + (alg) == PSA_ALG_CCM_STAR_NO_TAG ? 13u : \ + 0u) + +/** The maximum IV size for all supported cipher algorithms, in bytes. + * + * See also #PSA_CIPHER_IV_LENGTH(). + */ +#define PSA_CIPHER_IV_MAX_SIZE 16u + +/** The maximum size of the output of psa_cipher_encrypt(), in bytes. + * + * If the size of the output buffer is at least this large, it is guaranteed + * that psa_cipher_encrypt() will not fail due to an insufficient buffer size. + * Depending on the algorithm, the actual size of the output might be smaller. + * + * See also #PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE(\p input_length). + * + * \warning This macro may evaluate its arguments multiple times or + * zero times, so you should not pass arguments that contain + * side effects. + * + * \param key_type A symmetric key type that is compatible with algorithm + * alg. + * \param alg A cipher algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_CIPHER(\p alg) is true). + * \param input_length Size of the input in bytes. + * + * \return A sufficient output size for the specified key type and + * algorithm. If the key type or cipher algorithm is not + * recognized, or the parameters are incompatible, + * return 0. + */ +#define PSA_CIPHER_ENCRYPT_OUTPUT_SIZE(key_type, alg, input_length) \ + (alg == PSA_ALG_CBC_PKCS7 ? \ + (PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) != 0 ? \ + PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type), \ + (input_length) + 1u) + \ + PSA_CIPHER_IV_LENGTH((key_type), (alg)) : 0u) : \ + (PSA_ALG_IS_CIPHER(alg) ? \ + (input_length) + PSA_CIPHER_IV_LENGTH((key_type), (alg)) : \ + 0u)) + +/** A sufficient output buffer size for psa_cipher_encrypt(), for any of the + * supported key types and cipher algorithms. + * + * If the size of the output buffer is at least this large, it is guaranteed + * that psa_cipher_encrypt() will not fail due to an insufficient buffer size. + * + * See also #PSA_CIPHER_ENCRYPT_OUTPUT_SIZE(\p key_type, \p alg, \p input_length). + * + * \param input_length Size of the input in bytes. + * + */ +#define PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE(input_length) \ + (PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE, \ + (input_length) + 1u) + \ + PSA_CIPHER_IV_MAX_SIZE) + +/** The maximum size of the output of psa_cipher_decrypt(), in bytes. + * + * If the size of the output buffer is at least this large, it is guaranteed + * that psa_cipher_decrypt() will not fail due to an insufficient buffer size. + * Depending on the algorithm, the actual size of the output might be smaller. + * + * See also #PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE(\p input_length). + * + * \param key_type A symmetric key type that is compatible with algorithm + * alg. + * \param alg A cipher algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_CIPHER(\p alg) is true). + * \param input_length Size of the input in bytes. + * + * \return A sufficient output size for the specified key type and + * algorithm. If the key type or cipher algorithm is not + * recognized, or the parameters are incompatible, + * return 0. + */ +#define PSA_CIPHER_DECRYPT_OUTPUT_SIZE(key_type, alg, input_length) \ + (PSA_ALG_IS_CIPHER(alg) && \ + ((key_type) & PSA_KEY_TYPE_CATEGORY_MASK) == PSA_KEY_TYPE_CATEGORY_SYMMETRIC ? \ + (input_length) : \ + 0u) + +/** A sufficient output buffer size for psa_cipher_decrypt(), for any of the + * supported key types and cipher algorithms. + * + * If the size of the output buffer is at least this large, it is guaranteed + * that psa_cipher_decrypt() will not fail due to an insufficient buffer size. + * + * See also #PSA_CIPHER_DECRYPT_OUTPUT_SIZE(\p key_type, \p alg, \p input_length). + * + * \param input_length Size of the input in bytes. + */ +#define PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE(input_length) \ + (input_length) + +/** A sufficient output buffer size for psa_cipher_update(). + * + * If the size of the output buffer is at least this large, it is guaranteed + * that psa_cipher_update() will not fail due to an insufficient buffer size. + * The actual size of the output might be smaller in any given call. + * + * See also #PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE(\p input_length). + * + * \param key_type A symmetric key type that is compatible with algorithm + * alg. + * \param alg A cipher algorithm (PSA_ALG_XXX value such that + * #PSA_ALG_IS_CIPHER(\p alg) is true). + * \param input_length Size of the input in bytes. + * + * \return A sufficient output size for the specified key type and + * algorithm. If the key type or cipher algorithm is not + * recognized, or the parameters are incompatible, return 0. + */ +#define PSA_CIPHER_UPDATE_OUTPUT_SIZE(key_type, alg, input_length) \ + (PSA_ALG_IS_CIPHER(alg) ? \ + (PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) != 0 ? \ + (((alg) == PSA_ALG_CBC_PKCS7 || \ + (alg) == PSA_ALG_CBC_NO_PADDING || \ + (alg) == PSA_ALG_ECB_NO_PADDING) ? \ + PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type), \ + input_length) : \ + (input_length)) : 0u) : \ + 0u) + +/** A sufficient output buffer size for psa_cipher_update(), for any of the + * supported key types and cipher algorithms. + * + * If the size of the output buffer is at least this large, it is guaranteed + * that psa_cipher_update() will not fail due to an insufficient buffer size. + * + * See also #PSA_CIPHER_UPDATE_OUTPUT_SIZE(\p key_type, \p alg, \p input_length). + * + * \param input_length Size of the input in bytes. + */ +#define PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE(input_length) \ + (PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE, input_length)) + +/** A sufficient ciphertext buffer size for psa_cipher_finish(). + * + * If the size of the ciphertext buffer is at least this large, it is + * guaranteed that psa_cipher_finish() will not fail due to an insufficient + * ciphertext buffer size. The actual size of the output might be smaller in + * any given call. + * + * See also #PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE(). + * + * \param key_type A symmetric key type that is compatible with algorithm + * alg. + * \param alg A cipher algorithm (PSA_ALG_XXX value such that + * #PSA_ALG_IS_CIPHER(\p alg) is true). + * \return A sufficient output size for the specified key type and + * algorithm. If the key type or cipher algorithm is not + * recognized, or the parameters are incompatible, return 0. + */ +#define PSA_CIPHER_FINISH_OUTPUT_SIZE(key_type, alg) \ + (PSA_ALG_IS_CIPHER(alg) ? \ + (alg == PSA_ALG_CBC_PKCS7 ? \ + PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) : \ + 0u) : \ + 0u) + +/** A sufficient ciphertext buffer size for psa_cipher_finish(), for any of the + * supported key types and cipher algorithms. + * + * See also #PSA_CIPHER_FINISH_OUTPUT_SIZE(\p key_type, \p alg). + */ +#define PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE \ + (PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE) + +#endif /* PSA_CRYPTO_SIZES_H */ diff --git a/include/psa/crypto_struct.h b/include/psa/crypto_struct.h new file mode 100644 index 0000000..d5ea8d5 --- /dev/null +++ b/include/psa/crypto_struct.h @@ -0,0 +1,460 @@ +/** + * \file psa/crypto_struct.h + * + * \brief PSA cryptography module: Mbed TLS structured type implementations + * + * \note This file may not be included directly. Applications must + * include psa/crypto.h. + * + * This file contains the definitions of some data structures with + * implementation-specific definitions. + * + * In implementations with isolation between the application and the + * cryptography module, it is expected that the front-end and the back-end + * would have different versions of this file. + * + * <h3>Design notes about multipart operation structures</h3> + * + * For multipart operations without driver delegation support, each multipart + * operation structure contains a `psa_algorithm_t alg` field which indicates + * which specific algorithm the structure is for. When the structure is not in + * use, `alg` is 0. Most of the structure consists of a union which is + * discriminated by `alg`. + * + * For multipart operations with driver delegation support, each multipart + * operation structure contains an `unsigned int id` field indicating which + * driver got assigned to do the operation. When the structure is not in use, + * 'id' is 0. The structure contains also a driver context which is the union + * of the contexts of all drivers able to handle the type of multipart + * operation. + * + * Note that when `alg` or `id` is 0, the content of other fields is undefined. + * In particular, it is not guaranteed that a freshly-initialized structure + * is all-zero: we initialize structures to something like `{0, 0}`, which + * is only guaranteed to initializes the first member of the union; + * GCC and Clang initialize the whole structure to 0 (at the time of writing), + * but MSVC and CompCert don't. + * + * In Mbed TLS, multipart operation structures live independently from + * the key. This allows Mbed TLS to free the key objects when destroying + * a key slot. If a multipart operation needs to remember the key after + * the setup function returns, the operation structure needs to contain a + * copy of the key. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_STRUCT_H +#define PSA_CRYPTO_STRUCT_H +#include "mbedtls/private_access.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* Include the Mbed TLS configuration file, the way Mbed TLS does it + * in each of its header files. */ +#include "mbedtls/build_info.h" + +/* Include the context definition for the compiled-in drivers for the primitive + * algorithms. */ +#include "psa/crypto_driver_contexts_primitives.h" + +struct psa_hash_operation_s { + /** Unique ID indicating which driver got assigned to do the + * operation. Since driver contexts are driver-specific, swapping + * drivers halfway through the operation is not supported. + * ID values are auto-generated in psa_driver_wrappers.h. + * ID value zero means the context is not valid or not assigned to + * any driver (i.e. the driver context is not active, in use). */ + unsigned int MBEDTLS_PRIVATE(id); + psa_driver_hash_context_t MBEDTLS_PRIVATE(ctx); +}; + +#define PSA_HASH_OPERATION_INIT { 0, { 0 } } +static inline struct psa_hash_operation_s psa_hash_operation_init(void) +{ + const struct psa_hash_operation_s v = PSA_HASH_OPERATION_INIT; + return v; +} + +struct psa_cipher_operation_s { + /** Unique ID indicating which driver got assigned to do the + * operation. Since driver contexts are driver-specific, swapping + * drivers halfway through the operation is not supported. + * ID values are auto-generated in psa_crypto_driver_wrappers.h + * ID value zero means the context is not valid or not assigned to + * any driver (i.e. none of the driver contexts are active). */ + unsigned int MBEDTLS_PRIVATE(id); + + unsigned int MBEDTLS_PRIVATE(iv_required) : 1; + unsigned int MBEDTLS_PRIVATE(iv_set) : 1; + + uint8_t MBEDTLS_PRIVATE(default_iv_length); + + psa_driver_cipher_context_t MBEDTLS_PRIVATE(ctx); +}; + +#define PSA_CIPHER_OPERATION_INIT { 0, 0, 0, 0, { 0 } } +static inline struct psa_cipher_operation_s psa_cipher_operation_init(void) +{ + const struct psa_cipher_operation_s v = PSA_CIPHER_OPERATION_INIT; + return v; +} + +/* Include the context definition for the compiled-in drivers for the composite + * algorithms. */ +#include "psa/crypto_driver_contexts_composites.h" + +struct psa_mac_operation_s { + /** Unique ID indicating which driver got assigned to do the + * operation. Since driver contexts are driver-specific, swapping + * drivers halfway through the operation is not supported. + * ID values are auto-generated in psa_driver_wrappers.h + * ID value zero means the context is not valid or not assigned to + * any driver (i.e. none of the driver contexts are active). */ + unsigned int MBEDTLS_PRIVATE(id); + uint8_t MBEDTLS_PRIVATE(mac_size); + unsigned int MBEDTLS_PRIVATE(is_sign) : 1; + psa_driver_mac_context_t MBEDTLS_PRIVATE(ctx); +}; + +#define PSA_MAC_OPERATION_INIT { 0, 0, 0, { 0 } } +static inline struct psa_mac_operation_s psa_mac_operation_init(void) +{ + const struct psa_mac_operation_s v = PSA_MAC_OPERATION_INIT; + return v; +} + +struct psa_aead_operation_s { + + /** Unique ID indicating which driver got assigned to do the + * operation. Since driver contexts are driver-specific, swapping + * drivers halfway through the operation is not supported. + * ID values are auto-generated in psa_crypto_driver_wrappers.h + * ID value zero means the context is not valid or not assigned to + * any driver (i.e. none of the driver contexts are active). */ + unsigned int MBEDTLS_PRIVATE(id); + + psa_algorithm_t MBEDTLS_PRIVATE(alg); + psa_key_type_t MBEDTLS_PRIVATE(key_type); + + size_t MBEDTLS_PRIVATE(ad_remaining); + size_t MBEDTLS_PRIVATE(body_remaining); + + unsigned int MBEDTLS_PRIVATE(nonce_set) : 1; + unsigned int MBEDTLS_PRIVATE(lengths_set) : 1; + unsigned int MBEDTLS_PRIVATE(ad_started) : 1; + unsigned int MBEDTLS_PRIVATE(body_started) : 1; + unsigned int MBEDTLS_PRIVATE(is_encrypt) : 1; + + psa_driver_aead_context_t MBEDTLS_PRIVATE(ctx); +}; + +#define PSA_AEAD_OPERATION_INIT { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, { 0 } } +static inline struct psa_aead_operation_s psa_aead_operation_init(void) +{ + const struct psa_aead_operation_s v = PSA_AEAD_OPERATION_INIT; + return v; +} + +/* Include the context definition for the compiled-in drivers for the key + * derivation algorithms. */ +#include "psa/crypto_driver_contexts_key_derivation.h" + +struct psa_key_derivation_s { + psa_algorithm_t MBEDTLS_PRIVATE(alg); + unsigned int MBEDTLS_PRIVATE(can_output_key) : 1; + size_t MBEDTLS_PRIVATE(capacity); + psa_driver_key_derivation_context_t MBEDTLS_PRIVATE(ctx); +}; + +/* This only zeroes out the first byte in the union, the rest is unspecified. */ +#define PSA_KEY_DERIVATION_OPERATION_INIT { 0, 0, 0, { 0 } } +static inline struct psa_key_derivation_s psa_key_derivation_operation_init( + void) +{ + const struct psa_key_derivation_s v = PSA_KEY_DERIVATION_OPERATION_INIT; + return v; +} + +struct psa_key_policy_s { + psa_key_usage_t MBEDTLS_PRIVATE(usage); + psa_algorithm_t MBEDTLS_PRIVATE(alg); + psa_algorithm_t MBEDTLS_PRIVATE(alg2); +}; +typedef struct psa_key_policy_s psa_key_policy_t; + +#define PSA_KEY_POLICY_INIT { 0, 0, 0 } +static inline struct psa_key_policy_s psa_key_policy_init(void) +{ + const struct psa_key_policy_s v = PSA_KEY_POLICY_INIT; + return v; +} + +/* The type used internally for key sizes. + * Public interfaces use size_t, but internally we use a smaller type. */ +typedef uint16_t psa_key_bits_t; +/* The maximum value of the type used to represent bit-sizes. + * This is used to mark an invalid key size. */ +#define PSA_KEY_BITS_TOO_LARGE ((psa_key_bits_t) -1) +/* The maximum size of a key in bits. + * Currently defined as the maximum that can be represented, rounded down + * to a whole number of bytes. + * This is an uncast value so that it can be used in preprocessor + * conditionals. */ +#define PSA_MAX_KEY_BITS 0xfff8 + +/** A mask of flags that can be stored in key attributes. + * + * This type is also used internally to store flags in slots. Internal + * flags are defined in library/psa_crypto_core.h. Internal flags may have + * the same value as external flags if they are properly handled during + * key creation and in psa_get_key_attributes. + */ +typedef uint16_t psa_key_attributes_flag_t; + +#define MBEDTLS_PSA_KA_FLAG_HAS_SLOT_NUMBER \ + ((psa_key_attributes_flag_t) 0x0001) + +/* A mask of key attribute flags used externally only. + * Only meant for internal checks inside the library. */ +#define MBEDTLS_PSA_KA_MASK_EXTERNAL_ONLY ( \ + MBEDTLS_PSA_KA_FLAG_HAS_SLOT_NUMBER | \ + 0) + +/* A mask of key attribute flags used both internally and externally. + * Currently there aren't any. */ +#define MBEDTLS_PSA_KA_MASK_DUAL_USE ( \ + 0) + +typedef struct { + psa_key_type_t MBEDTLS_PRIVATE(type); + psa_key_bits_t MBEDTLS_PRIVATE(bits); + psa_key_lifetime_t MBEDTLS_PRIVATE(lifetime); + mbedtls_svc_key_id_t MBEDTLS_PRIVATE(id); + psa_key_policy_t MBEDTLS_PRIVATE(policy); + psa_key_attributes_flag_t MBEDTLS_PRIVATE(flags); +} psa_core_key_attributes_t; + +#define PSA_CORE_KEY_ATTRIBUTES_INIT { PSA_KEY_TYPE_NONE, 0, \ + PSA_KEY_LIFETIME_VOLATILE, \ + MBEDTLS_SVC_KEY_ID_INIT, \ + PSA_KEY_POLICY_INIT, 0 } + +struct psa_key_attributes_s { + psa_core_key_attributes_t MBEDTLS_PRIVATE(core); +#if defined(MBEDTLS_PSA_CRYPTO_SE_C) + psa_key_slot_number_t MBEDTLS_PRIVATE(slot_number); +#endif /* MBEDTLS_PSA_CRYPTO_SE_C */ + void *MBEDTLS_PRIVATE(domain_parameters); + size_t MBEDTLS_PRIVATE(domain_parameters_size); +}; + +#if defined(MBEDTLS_PSA_CRYPTO_SE_C) +#define PSA_KEY_ATTRIBUTES_INIT { PSA_CORE_KEY_ATTRIBUTES_INIT, 0, NULL, 0 } +#else +#define PSA_KEY_ATTRIBUTES_INIT { PSA_CORE_KEY_ATTRIBUTES_INIT, NULL, 0 } +#endif + +static inline struct psa_key_attributes_s psa_key_attributes_init(void) +{ + const struct psa_key_attributes_s v = PSA_KEY_ATTRIBUTES_INIT; + return v; +} + +static inline void psa_set_key_id(psa_key_attributes_t *attributes, + mbedtls_svc_key_id_t key) +{ + psa_key_lifetime_t lifetime = attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(lifetime); + + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id) = key; + + if (PSA_KEY_LIFETIME_IS_VOLATILE(lifetime)) { + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(lifetime) = + PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION( + PSA_KEY_LIFETIME_PERSISTENT, + PSA_KEY_LIFETIME_GET_LOCATION(lifetime)); + } +} + +static inline mbedtls_svc_key_id_t psa_get_key_id( + const psa_key_attributes_t *attributes) +{ + return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id); +} + +#ifdef MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER +static inline void mbedtls_set_key_owner_id(psa_key_attributes_t *attributes, + mbedtls_key_owner_id_t owner) +{ + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id).MBEDTLS_PRIVATE(owner) = owner; +} +#endif + +static inline void psa_set_key_lifetime(psa_key_attributes_t *attributes, + psa_key_lifetime_t lifetime) +{ + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(lifetime) = lifetime; + if (PSA_KEY_LIFETIME_IS_VOLATILE(lifetime)) { +#ifdef MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id).MBEDTLS_PRIVATE(key_id) = 0; +#else + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id) = 0; +#endif + } +} + +static inline psa_key_lifetime_t psa_get_key_lifetime( + const psa_key_attributes_t *attributes) +{ + return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(lifetime); +} + +static inline void psa_extend_key_usage_flags(psa_key_usage_t *usage_flags) +{ + if (*usage_flags & PSA_KEY_USAGE_SIGN_HASH) { + *usage_flags |= PSA_KEY_USAGE_SIGN_MESSAGE; + } + + if (*usage_flags & PSA_KEY_USAGE_VERIFY_HASH) { + *usage_flags |= PSA_KEY_USAGE_VERIFY_MESSAGE; + } +} + +static inline void psa_set_key_usage_flags(psa_key_attributes_t *attributes, + psa_key_usage_t usage_flags) +{ + psa_extend_key_usage_flags(&usage_flags); + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(usage) = usage_flags; +} + +static inline psa_key_usage_t psa_get_key_usage_flags( + const psa_key_attributes_t *attributes) +{ + return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(usage); +} + +static inline void psa_set_key_algorithm(psa_key_attributes_t *attributes, + psa_algorithm_t alg) +{ + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg) = alg; +} + +static inline psa_algorithm_t psa_get_key_algorithm( + const psa_key_attributes_t *attributes) +{ + return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg); +} + +/* This function is declared in crypto_extra.h, which comes after this + * header file, but we need the function here, so repeat the declaration. */ +psa_status_t psa_set_key_domain_parameters(psa_key_attributes_t *attributes, + psa_key_type_t type, + const uint8_t *data, + size_t data_length); + +static inline void psa_set_key_type(psa_key_attributes_t *attributes, + psa_key_type_t type) +{ + if (attributes->MBEDTLS_PRIVATE(domain_parameters) == NULL) { + /* Common case: quick path */ + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(type) = type; + } else { + /* Call the bigger function to free the old domain parameters. + * Ignore any errors which may arise due to type requiring + * non-default domain parameters, since this function can't + * report errors. */ + (void) psa_set_key_domain_parameters(attributes, type, NULL, 0); + } +} + +static inline psa_key_type_t psa_get_key_type( + const psa_key_attributes_t *attributes) +{ + return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(type); +} + +static inline void psa_set_key_bits(psa_key_attributes_t *attributes, + size_t bits) +{ + if (bits > PSA_MAX_KEY_BITS) { + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(bits) = PSA_KEY_BITS_TOO_LARGE; + } else { + attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(bits) = (psa_key_bits_t) bits; + } +} + +static inline size_t psa_get_key_bits( + const psa_key_attributes_t *attributes) +{ + return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(bits); +} + +/** + * \brief The context for PSA interruptible hash signing. + */ +struct psa_sign_hash_interruptible_operation_s { + /** Unique ID indicating which driver got assigned to do the + * operation. Since driver contexts are driver-specific, swapping + * drivers halfway through the operation is not supported. + * ID values are auto-generated in psa_crypto_driver_wrappers.h + * ID value zero means the context is not valid or not assigned to + * any driver (i.e. none of the driver contexts are active). */ + unsigned int MBEDTLS_PRIVATE(id); + + psa_driver_sign_hash_interruptible_context_t MBEDTLS_PRIVATE(ctx); + + unsigned int MBEDTLS_PRIVATE(error_occurred) : 1; + + uint32_t MBEDTLS_PRIVATE(num_ops); +}; + +#define PSA_SIGN_HASH_INTERRUPTIBLE_OPERATION_INIT { 0, { 0 }, 0, 0 } + +static inline struct psa_sign_hash_interruptible_operation_s +psa_sign_hash_interruptible_operation_init(void) +{ + const struct psa_sign_hash_interruptible_operation_s v = + PSA_SIGN_HASH_INTERRUPTIBLE_OPERATION_INIT; + + return v; +} + +/** + * \brief The context for PSA interruptible hash verification. + */ +struct psa_verify_hash_interruptible_operation_s { + /** Unique ID indicating which driver got assigned to do the + * operation. Since driver contexts are driver-specific, swapping + * drivers halfway through the operation is not supported. + * ID values are auto-generated in psa_crypto_driver_wrappers.h + * ID value zero means the context is not valid or not assigned to + * any driver (i.e. none of the driver contexts are active). */ + unsigned int MBEDTLS_PRIVATE(id); + + psa_driver_verify_hash_interruptible_context_t MBEDTLS_PRIVATE(ctx); + + unsigned int MBEDTLS_PRIVATE(error_occurred) : 1; + + uint32_t MBEDTLS_PRIVATE(num_ops); +}; + +#define PSA_VERIFY_HASH_INTERRUPTIBLE_OPERATION_INIT { 0, { 0 }, 0, 0 } + +static inline struct psa_verify_hash_interruptible_operation_s +psa_verify_hash_interruptible_operation_init(void) +{ + const struct psa_verify_hash_interruptible_operation_s v = + PSA_VERIFY_HASH_INTERRUPTIBLE_OPERATION_INIT; + + return v; +} + +#ifdef __cplusplus +} +#endif + +#endif /* PSA_CRYPTO_STRUCT_H */ diff --git a/include/psa/crypto_types.h b/include/psa/crypto_types.h new file mode 100644 index 0000000..5a1318d --- /dev/null +++ b/include/psa/crypto_types.h @@ -0,0 +1,453 @@ +/** + * \file psa/crypto_types.h + * + * \brief PSA cryptography module: type aliases. + * + * \note This file may not be included directly. Applications must + * include psa/crypto.h. Drivers must include the appropriate driver + * header file. + * + * This file contains portable definitions of integral types for properties + * of cryptographic keys, designations of cryptographic algorithms, and + * error codes returned by the library. + * + * This header file does not declare any function. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_TYPES_H +#define PSA_CRYPTO_TYPES_H + +/* Make sure the Mbed TLS configuration is visible. */ +#include "mbedtls/build_info.h" +/* Define the MBEDTLS_PRIVATE macro. */ +#include "mbedtls/private_access.h" + +#if defined(MBEDTLS_PSA_CRYPTO_PLATFORM_FILE) +#include MBEDTLS_PSA_CRYPTO_PLATFORM_FILE +#else +#include "crypto_platform.h" +#endif + +#include <stdint.h> + +/** \defgroup error Error codes + * @{ + */ + +/** + * \brief Function return status. + * + * This is either #PSA_SUCCESS (which is zero), indicating success, + * or a small negative value indicating that an error occurred. Errors are + * encoded as one of the \c PSA_ERROR_xxx values defined here. */ +/* If #PSA_SUCCESS is already defined, it means that #psa_status_t + * is also defined in an external header, so prevent its multiple + * definition. + */ +#ifndef PSA_SUCCESS +typedef int32_t psa_status_t; +#endif + +/**@}*/ + +/** \defgroup crypto_types Key and algorithm types + * @{ + */ + +/** \brief Encoding of a key type. + * + * Values of this type are generally constructed by macros called + * `PSA_KEY_TYPE_xxx`. + * + * \note Values of this type are encoded in the persistent key store. + * Any changes to existing values will require bumping the storage + * format version and providing a translation when reading the old + * format. + */ +typedef uint16_t psa_key_type_t; + +/** The type of PSA elliptic curve family identifiers. + * + * Values of this type are generally constructed by macros called + * `PSA_ECC_FAMILY_xxx`. + * + * The curve identifier is required to create an ECC key using the + * PSA_KEY_TYPE_ECC_KEY_PAIR() or PSA_KEY_TYPE_ECC_PUBLIC_KEY() + * macros. + * + * Values defined by this standard will never be in the range 0x80-0xff. + * Vendors who define additional families must use an encoding in this range. + * + * \note Values of this type are encoded in the persistent key store. + * Any changes to existing values will require bumping the storage + * format version and providing a translation when reading the old + * format. + */ +typedef uint8_t psa_ecc_family_t; + +/** The type of PSA Diffie-Hellman group family identifiers. + * + * Values of this type are generally constructed by macros called + * `PSA_DH_FAMILY_xxx`. + * + * The group identifier is required to create a Diffie-Hellman key using the + * PSA_KEY_TYPE_DH_KEY_PAIR() or PSA_KEY_TYPE_DH_PUBLIC_KEY() + * macros. + * + * Values defined by this standard will never be in the range 0x80-0xff. + * Vendors who define additional families must use an encoding in this range. + * + * \note Values of this type are encoded in the persistent key store. + * Any changes to existing values will require bumping the storage + * format version and providing a translation when reading the old + * format. + */ +typedef uint8_t psa_dh_family_t; + +/** \brief Encoding of a cryptographic algorithm. + * + * Values of this type are generally constructed by macros called + * `PSA_ALG_xxx`. + * + * For algorithms that can be applied to multiple key types, this type + * does not encode the key type. For example, for symmetric ciphers + * based on a block cipher, #psa_algorithm_t encodes the block cipher + * mode and the padding mode while the block cipher itself is encoded + * via #psa_key_type_t. + * + * \note Values of this type are encoded in the persistent key store. + * Any changes to existing values will require bumping the storage + * format version and providing a translation when reading the old + * format. + */ +typedef uint32_t psa_algorithm_t; + +/**@}*/ + +/** \defgroup key_lifetimes Key lifetimes + * @{ + */ + +/** Encoding of key lifetimes. + * + * The lifetime of a key indicates where it is stored and what system actions + * may create and destroy it. + * + * Lifetime values have the following structure: + * - Bits 0-7 (#PSA_KEY_LIFETIME_GET_PERSISTENCE(\c lifetime)): + * persistence level. This value indicates what device management + * actions can cause it to be destroyed. In particular, it indicates + * whether the key is _volatile_ or _persistent_. + * See ::psa_key_persistence_t for more information. + * - Bits 8-31 (#PSA_KEY_LIFETIME_GET_LOCATION(\c lifetime)): + * location indicator. This value indicates which part of the system + * has access to the key material and can perform operations using the key. + * See ::psa_key_location_t for more information. + * + * Volatile keys are automatically destroyed when the application instance + * terminates or on a power reset of the device. Persistent keys are + * preserved until the application explicitly destroys them or until an + * integration-specific device management event occurs (for example, + * a factory reset). + * + * Persistent keys have a key identifier of type #mbedtls_svc_key_id_t. + * This identifier remains valid throughout the lifetime of the key, + * even if the application instance that created the key terminates. + * The application can call psa_open_key() to open a persistent key that + * it created previously. + * + * The default lifetime of a key is #PSA_KEY_LIFETIME_VOLATILE. The lifetime + * #PSA_KEY_LIFETIME_PERSISTENT is supported if persistent storage is + * available. Other lifetime values may be supported depending on the + * library configuration. + * + * Values of this type are generally constructed by macros called + * `PSA_KEY_LIFETIME_xxx`. + * + * \note Values of this type are encoded in the persistent key store. + * Any changes to existing values will require bumping the storage + * format version and providing a translation when reading the old + * format. + */ +typedef uint32_t psa_key_lifetime_t; + +/** Encoding of key persistence levels. + * + * What distinguishes different persistence levels is what device management + * events may cause keys to be destroyed. _Volatile_ keys are destroyed + * by a power reset. Persistent keys may be destroyed by events such as + * a transfer of ownership or a factory reset. What management events + * actually affect persistent keys at different levels is outside the + * scope of the PSA Cryptography specification. + * + * The PSA Cryptography specification defines the following values of + * persistence levels: + * - \c 0 = #PSA_KEY_PERSISTENCE_VOLATILE: volatile key. + * A volatile key is automatically destroyed by the implementation when + * the application instance terminates. In particular, a volatile key + * is automatically destroyed on a power reset of the device. + * - \c 1 = #PSA_KEY_PERSISTENCE_DEFAULT: + * persistent key with a default lifetime. + * - \c 2-254: currently not supported by Mbed TLS. + * - \c 255 = #PSA_KEY_PERSISTENCE_READ_ONLY: + * read-only or write-once key. + * A key with this persistence level cannot be destroyed. + * Mbed TLS does not currently offer a way to create such keys, but + * integrations of Mbed TLS can use it for built-in keys that the + * application cannot modify (for example, a hardware unique key (HUK)). + * + * \note Key persistence levels are 8-bit values. Key management + * interfaces operate on lifetimes (type ::psa_key_lifetime_t) which + * encode the persistence as the lower 8 bits of a 32-bit value. + * + * \note Values of this type are encoded in the persistent key store. + * Any changes to existing values will require bumping the storage + * format version and providing a translation when reading the old + * format. + */ +typedef uint8_t psa_key_persistence_t; + +/** Encoding of key location indicators. + * + * If an integration of Mbed TLS can make calls to external + * cryptoprocessors such as secure elements, the location of a key + * indicates which secure element performs the operations on the key. + * Depending on the design of the secure element, the key + * material may be stored either in the secure element, or + * in wrapped (encrypted) form alongside the key metadata in the + * primary local storage. + * + * The PSA Cryptography API specification defines the following values of + * location indicators: + * - \c 0: primary local storage. + * This location is always available. + * The primary local storage is typically the same storage area that + * contains the key metadata. + * - \c 1: primary secure element. + * Integrations of Mbed TLS should support this value if there is a secure + * element attached to the operating environment. + * As a guideline, secure elements may provide higher resistance against + * side channel and physical attacks than the primary local storage, but may + * have restrictions on supported key types, sizes, policies and operations + * and may have different performance characteristics. + * - \c 2-0x7fffff: other locations defined by a PSA specification. + * The PSA Cryptography API does not currently assign any meaning to these + * locations, but future versions of that specification or other PSA + * specifications may do so. + * - \c 0x800000-0xffffff: vendor-defined locations. + * No PSA specification will assign a meaning to locations in this range. + * + * \note Key location indicators are 24-bit values. Key management + * interfaces operate on lifetimes (type ::psa_key_lifetime_t) which + * encode the location as the upper 24 bits of a 32-bit value. + * + * \note Values of this type are encoded in the persistent key store. + * Any changes to existing values will require bumping the storage + * format version and providing a translation when reading the old + * format. + */ +typedef uint32_t psa_key_location_t; + +/** Encoding of identifiers of persistent keys. + * + * - Applications may freely choose key identifiers in the range + * #PSA_KEY_ID_USER_MIN to #PSA_KEY_ID_USER_MAX. + * - The implementation may define additional key identifiers in the range + * #PSA_KEY_ID_VENDOR_MIN to #PSA_KEY_ID_VENDOR_MAX. + * - 0 is reserved as an invalid key identifier. + * - Key identifiers outside these ranges are reserved for future use. + * + * \note Values of this type are encoded in the persistent key store. + * Any changes to how values are allocated must require careful + * consideration to allow backward compatibility. + */ +typedef uint32_t psa_key_id_t; + +/** Encoding of key identifiers as seen inside the PSA Crypto implementation. + * + * When PSA Crypto is built as a library inside an application, this type + * is identical to #psa_key_id_t. When PSA Crypto is built as a service + * that can store keys on behalf of multiple clients, this type + * encodes the #psa_key_id_t value seen by each client application as + * well as extra information that identifies the client that owns + * the key. + * + * \note Values of this type are encoded in the persistent key store. + * Any changes to existing values will require bumping the storage + * format version and providing a translation when reading the old + * format. + */ +#if !defined(MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER) +typedef psa_key_id_t mbedtls_svc_key_id_t; + +#else /* MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER */ +/* Implementation-specific: The Mbed TLS library can be built as + * part of a multi-client service that exposes the PSA Cryptography API in each + * client and encodes the client identity in the key identifier argument of + * functions such as psa_open_key(). + */ +typedef struct { + psa_key_id_t MBEDTLS_PRIVATE(key_id); + mbedtls_key_owner_id_t MBEDTLS_PRIVATE(owner); +} mbedtls_svc_key_id_t; + +#endif /* !MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER */ + +/**@}*/ + +/** \defgroup policy Key policies + * @{ + */ + +/** \brief Encoding of permitted usage on a key. + * + * Values of this type are generally constructed as bitwise-ors of macros + * called `PSA_KEY_USAGE_xxx`. + * + * \note Values of this type are encoded in the persistent key store. + * Any changes to existing values will require bumping the storage + * format version and providing a translation when reading the old + * format. + */ +typedef uint32_t psa_key_usage_t; + +/**@}*/ + +/** \defgroup attributes Key attributes + * @{ + */ + +/** The type of a structure containing key attributes. + * + * This is an opaque structure that can represent the metadata of a key + * object. Metadata that can be stored in attributes includes: + * - The location of the key in storage, indicated by its key identifier + * and its lifetime. + * - The key's policy, comprising usage flags and a specification of + * the permitted algorithm(s). + * - Information about the key itself: the key type and its size. + * - Additional implementation-defined attributes. + * + * The actual key material is not considered an attribute of a key. + * Key attributes do not contain information that is generally considered + * highly confidential. + * + * An attribute structure works like a simple data structure where each function + * `psa_set_key_xxx` sets a field and the corresponding function + * `psa_get_key_xxx` retrieves the value of the corresponding field. + * However, a future version of the library may report values that are + * equivalent to the original one, but have a different encoding. Invalid + * values may be mapped to different, also invalid values. + * + * An attribute structure may contain references to auxiliary resources, + * for example pointers to allocated memory or indirect references to + * pre-calculated values. In order to free such resources, the application + * must call psa_reset_key_attributes(). As an exception, calling + * psa_reset_key_attributes() on an attribute structure is optional if + * the structure has only been modified by the following functions + * since it was initialized or last reset with psa_reset_key_attributes(): + * - psa_set_key_id() + * - psa_set_key_lifetime() + * - psa_set_key_type() + * - psa_set_key_bits() + * - psa_set_key_usage_flags() + * - psa_set_key_algorithm() + * + * Before calling any function on a key attribute structure, the application + * must initialize it by any of the following means: + * - Set the structure to all-bits-zero, for example: + * \code + * psa_key_attributes_t attributes; + * memset(&attributes, 0, sizeof(attributes)); + * \endcode + * - Initialize the structure to logical zero values, for example: + * \code + * psa_key_attributes_t attributes = {0}; + * \endcode + * - Initialize the structure to the initializer #PSA_KEY_ATTRIBUTES_INIT, + * for example: + * \code + * psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT; + * \endcode + * - Assign the result of the function psa_key_attributes_init() + * to the structure, for example: + * \code + * psa_key_attributes_t attributes; + * attributes = psa_key_attributes_init(); + * \endcode + * + * A freshly initialized attribute structure contains the following + * values: + * + * - lifetime: #PSA_KEY_LIFETIME_VOLATILE. + * - key identifier: 0 (which is not a valid key identifier). + * - type: \c 0 (meaning that the type is unspecified). + * - key size: \c 0 (meaning that the size is unspecified). + * - usage flags: \c 0 (which allows no usage except exporting a public key). + * - algorithm: \c 0 (which allows no cryptographic usage, but allows + * exporting). + * + * A typical sequence to create a key is as follows: + * -# Create and initialize an attribute structure. + * -# If the key is persistent, call psa_set_key_id(). + * Also call psa_set_key_lifetime() to place the key in a non-default + * location. + * -# Set the key policy with psa_set_key_usage_flags() and + * psa_set_key_algorithm(). + * -# Set the key type with psa_set_key_type(). + * Skip this step if copying an existing key with psa_copy_key(). + * -# When generating a random key with psa_generate_key() or deriving a key + * with psa_key_derivation_output_key(), set the desired key size with + * psa_set_key_bits(). + * -# Call a key creation function: psa_import_key(), psa_generate_key(), + * psa_key_derivation_output_key() or psa_copy_key(). This function reads + * the attribute structure, creates a key with these attributes, and + * outputs a key identifier to the newly created key. + * -# The attribute structure is now no longer necessary. + * You may call psa_reset_key_attributes(), although this is optional + * with the workflow presented here because the attributes currently + * defined in this specification do not require any additional resources + * beyond the structure itself. + * + * A typical sequence to query a key's attributes is as follows: + * -# Call psa_get_key_attributes(). + * -# Call `psa_get_key_xxx` functions to retrieve the attribute(s) that + * you are interested in. + * -# Call psa_reset_key_attributes() to free any resources that may be + * used by the attribute structure. + * + * Once a key has been created, it is impossible to change its attributes. + */ +typedef struct psa_key_attributes_s psa_key_attributes_t; + + +#ifndef __DOXYGEN_ONLY__ +#if defined(MBEDTLS_PSA_CRYPTO_SE_C) +/* Mbed TLS defines this type in crypto_types.h because it is also + * visible to applications through an implementation-specific extension. + * For the PSA Cryptography specification, this type is only visible + * via crypto_se_driver.h. */ +typedef uint64_t psa_key_slot_number_t; +#endif /* MBEDTLS_PSA_CRYPTO_SE_C */ +#endif /* !__DOXYGEN_ONLY__ */ + +/**@}*/ + +/** \defgroup derivation Key derivation + * @{ + */ + +/** \brief Encoding of the step of a key derivation. + * + * Values of this type are generally constructed by macros called + * `PSA_KEY_DERIVATION_INPUT_xxx`. + */ +typedef uint16_t psa_key_derivation_step_t; + +/**@}*/ + +#endif /* PSA_CRYPTO_TYPES_H */ diff --git a/include/psa/crypto_values.h b/include/psa/crypto_values.h new file mode 100644 index 0000000..a17879b --- /dev/null +++ b/include/psa/crypto_values.h @@ -0,0 +1,2763 @@ +/** + * \file psa/crypto_values.h + * + * \brief PSA cryptography module: macros to build and analyze integer values. + * + * \note This file may not be included directly. Applications must + * include psa/crypto.h. Drivers must include the appropriate driver + * header file. + * + * This file contains portable definitions of macros to build and analyze + * values of integral types that encode properties of cryptographic keys, + * designations of cryptographic algorithms, and error codes returned by + * the library. + * + * Note that many of the constants defined in this file are embedded in + * the persistent key store, as part of key metadata (including usage + * policies). As a consequence, they must not be changed (unless the storage + * format version changes). + * + * This header file only defines preprocessor macros. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ + +#ifndef PSA_CRYPTO_VALUES_H +#define PSA_CRYPTO_VALUES_H +#include "mbedtls/private_access.h" + +/** \defgroup error Error codes + * @{ + */ + +/* PSA error codes */ + +/* Error codes are standardized across PSA domains (framework, crypto, storage, + * etc.). Do not change the values in this section or even the expansions + * of each macro: it must be possible to `#include` both this header + * and some other PSA component's headers in the same C source, + * which will lead to duplicate definitions of the `PSA_SUCCESS` and + * `PSA_ERROR_xxx` macros, which is ok if and only if the macros expand + * to the same sequence of tokens. + * + * If you must add a new + * value, check with the Arm PSA framework group to pick one that other + * domains aren't already using. */ + +/* Tell uncrustify not to touch the constant definitions, otherwise + * it might change the spacing to something that is not PSA-compliant + * (e.g. adding a space after casts). + * + * *INDENT-OFF* + */ + +/** The action was completed successfully. */ +#define PSA_SUCCESS ((psa_status_t)0) + +/** An error occurred that does not correspond to any defined + * failure cause. + * + * Implementations may use this error code if none of the other standard + * error codes are applicable. */ +#define PSA_ERROR_GENERIC_ERROR ((psa_status_t)-132) + +/** The requested operation or a parameter is not supported + * by this implementation. + * + * Implementations should return this error code when an enumeration + * parameter such as a key type, algorithm, etc. is not recognized. + * If a combination of parameters is recognized and identified as + * not valid, return #PSA_ERROR_INVALID_ARGUMENT instead. */ +#define PSA_ERROR_NOT_SUPPORTED ((psa_status_t)-134) + +/** The requested action is denied by a policy. + * + * Implementations should return this error code when the parameters + * are recognized as valid and supported, and a policy explicitly + * denies the requested operation. + * + * If a subset of the parameters of a function call identify a + * forbidden operation, and another subset of the parameters are + * not valid or not supported, it is unspecified whether the function + * returns #PSA_ERROR_NOT_PERMITTED, #PSA_ERROR_NOT_SUPPORTED or + * #PSA_ERROR_INVALID_ARGUMENT. */ +#define PSA_ERROR_NOT_PERMITTED ((psa_status_t)-133) + +/** An output buffer is too small. + * + * Applications can call the \c PSA_xxx_SIZE macro listed in the function + * description to determine a sufficient buffer size. + * + * Implementations should preferably return this error code only + * in cases when performing the operation with a larger output + * buffer would succeed. However implementations may return this + * error if a function has invalid or unsupported parameters in addition + * to the parameters that determine the necessary output buffer size. */ +#define PSA_ERROR_BUFFER_TOO_SMALL ((psa_status_t)-138) + +/** Asking for an item that already exists + * + * Implementations should return this error, when attempting + * to write an item (like a key) that already exists. */ +#define PSA_ERROR_ALREADY_EXISTS ((psa_status_t)-139) + +/** Asking for an item that doesn't exist + * + * Implementations should return this error, if a requested item (like + * a key) does not exist. */ +#define PSA_ERROR_DOES_NOT_EXIST ((psa_status_t)-140) + +/** The requested action cannot be performed in the current state. + * + * Multipart operations return this error when one of the + * functions is called out of sequence. Refer to the function + * descriptions for permitted sequencing of functions. + * + * Implementations shall not return this error code to indicate + * that a key either exists or not, + * but shall instead return #PSA_ERROR_ALREADY_EXISTS or #PSA_ERROR_DOES_NOT_EXIST + * as applicable. + * + * Implementations shall not return this error code to indicate that a + * key identifier is invalid, but shall return #PSA_ERROR_INVALID_HANDLE + * instead. */ +#define PSA_ERROR_BAD_STATE ((psa_status_t)-137) + +/** The parameters passed to the function are invalid. + * + * Implementations may return this error any time a parameter or + * combination of parameters are recognized as invalid. + * + * Implementations shall not return this error code to indicate that a + * key identifier is invalid, but shall return #PSA_ERROR_INVALID_HANDLE + * instead. + */ +#define PSA_ERROR_INVALID_ARGUMENT ((psa_status_t)-135) + +/** There is not enough runtime memory. + * + * If the action is carried out across multiple security realms, this + * error can refer to available memory in any of the security realms. */ +#define PSA_ERROR_INSUFFICIENT_MEMORY ((psa_status_t)-141) + +/** There is not enough persistent storage. + * + * Functions that modify the key storage return this error code if + * there is insufficient storage space on the host media. In addition, + * many functions that do not otherwise access storage may return this + * error code if the implementation requires a mandatory log entry for + * the requested action and the log storage space is full. */ +#define PSA_ERROR_INSUFFICIENT_STORAGE ((psa_status_t)-142) + +/** There was a communication failure inside the implementation. + * + * This can indicate a communication failure between the application + * and an external cryptoprocessor or between the cryptoprocessor and + * an external volatile or persistent memory. A communication failure + * may be transient or permanent depending on the cause. + * + * \warning If a function returns this error, it is undetermined + * whether the requested action has completed or not. Implementations + * should return #PSA_SUCCESS on successful completion whenever + * possible, however functions may return #PSA_ERROR_COMMUNICATION_FAILURE + * if the requested action was completed successfully in an external + * cryptoprocessor but there was a breakdown of communication before + * the cryptoprocessor could report the status to the application. + */ +#define PSA_ERROR_COMMUNICATION_FAILURE ((psa_status_t)-145) + +/** There was a storage failure that may have led to data loss. + * + * This error indicates that some persistent storage is corrupted. + * It should not be used for a corruption of volatile memory + * (use #PSA_ERROR_CORRUPTION_DETECTED), for a communication error + * between the cryptoprocessor and its external storage (use + * #PSA_ERROR_COMMUNICATION_FAILURE), or when the storage is + * in a valid state but is full (use #PSA_ERROR_INSUFFICIENT_STORAGE). + * + * Note that a storage failure does not indicate that any data that was + * previously read is invalid. However this previously read data may no + * longer be readable from storage. + * + * When a storage failure occurs, it is no longer possible to ensure + * the global integrity of the keystore. Depending on the global + * integrity guarantees offered by the implementation, access to other + * data may or may not fail even if the data is still readable but + * its integrity cannot be guaranteed. + * + * Implementations should only use this error code to report a + * permanent storage corruption. However application writers should + * keep in mind that transient errors while reading the storage may be + * reported using this error code. */ +#define PSA_ERROR_STORAGE_FAILURE ((psa_status_t)-146) + +/** A hardware failure was detected. + * + * A hardware failure may be transient or permanent depending on the + * cause. */ +#define PSA_ERROR_HARDWARE_FAILURE ((psa_status_t)-147) + +/** A tampering attempt was detected. + * + * If an application receives this error code, there is no guarantee + * that previously accessed or computed data was correct and remains + * confidential. Applications should not perform any security function + * and should enter a safe failure state. + * + * Implementations may return this error code if they detect an invalid + * state that cannot happen during normal operation and that indicates + * that the implementation's security guarantees no longer hold. Depending + * on the implementation architecture and on its security and safety goals, + * the implementation may forcibly terminate the application. + * + * This error code is intended as a last resort when a security breach + * is detected and it is unsure whether the keystore data is still + * protected. Implementations shall only return this error code + * to report an alarm from a tampering detector, to indicate that + * the confidentiality of stored data can no longer be guaranteed, + * or to indicate that the integrity of previously returned data is now + * considered compromised. Implementations shall not use this error code + * to indicate a hardware failure that merely makes it impossible to + * perform the requested operation (use #PSA_ERROR_COMMUNICATION_FAILURE, + * #PSA_ERROR_STORAGE_FAILURE, #PSA_ERROR_HARDWARE_FAILURE, + * #PSA_ERROR_INSUFFICIENT_ENTROPY or other applicable error code + * instead). + * + * This error indicates an attack against the application. Implementations + * shall not return this error code as a consequence of the behavior of + * the application itself. */ +#define PSA_ERROR_CORRUPTION_DETECTED ((psa_status_t)-151) + +/** There is not enough entropy to generate random data needed + * for the requested action. + * + * This error indicates a failure of a hardware random generator. + * Application writers should note that this error can be returned not + * only by functions whose purpose is to generate random data, such + * as key, IV or nonce generation, but also by functions that execute + * an algorithm with a randomized result, as well as functions that + * use randomization of intermediate computations as a countermeasure + * to certain attacks. + * + * Implementations should avoid returning this error after psa_crypto_init() + * has succeeded. Implementations should generate sufficient + * entropy during initialization and subsequently use a cryptographically + * secure pseudorandom generator (PRNG). However implementations may return + * this error at any time if a policy requires the PRNG to be reseeded + * during normal operation. */ +#define PSA_ERROR_INSUFFICIENT_ENTROPY ((psa_status_t)-148) + +/** The signature, MAC or hash is incorrect. + * + * Verification functions return this error if the verification + * calculations completed successfully, and the value to be verified + * was determined to be incorrect. + * + * If the value to verify has an invalid size, implementations may return + * either #PSA_ERROR_INVALID_ARGUMENT or #PSA_ERROR_INVALID_SIGNATURE. */ +#define PSA_ERROR_INVALID_SIGNATURE ((psa_status_t)-149) + +/** The decrypted padding is incorrect. + * + * \warning In some protocols, when decrypting data, it is essential that + * the behavior of the application does not depend on whether the padding + * is correct, down to precise timing. Applications should prefer + * protocols that use authenticated encryption rather than plain + * encryption. If the application must perform a decryption of + * unauthenticated data, the application writer should take care not + * to reveal whether the padding is invalid. + * + * Implementations should strive to make valid and invalid padding + * as close as possible to indistinguishable to an external observer. + * In particular, the timing of a decryption operation should not + * depend on the validity of the padding. */ +#define PSA_ERROR_INVALID_PADDING ((psa_status_t)-150) + +/** Return this error when there's insufficient data when attempting + * to read from a resource. */ +#define PSA_ERROR_INSUFFICIENT_DATA ((psa_status_t)-143) + +/** The key identifier is not valid. See also :ref:\`key-handles\`. + */ +#define PSA_ERROR_INVALID_HANDLE ((psa_status_t)-136) + +/** Stored data has been corrupted. + * + * This error indicates that some persistent storage has suffered corruption. + * It does not indicate the following situations, which have specific error + * codes: + * + * - A corruption of volatile memory - use #PSA_ERROR_CORRUPTION_DETECTED. + * - A communication error between the cryptoprocessor and its external + * storage - use #PSA_ERROR_COMMUNICATION_FAILURE. + * - When the storage is in a valid state but is full - use + * #PSA_ERROR_INSUFFICIENT_STORAGE. + * - When the storage fails for other reasons - use + * #PSA_ERROR_STORAGE_FAILURE. + * - When the stored data is not valid - use #PSA_ERROR_DATA_INVALID. + * + * \note A storage corruption does not indicate that any data that was + * previously read is invalid. However this previously read data might no + * longer be readable from storage. + * + * When a storage failure occurs, it is no longer possible to ensure the + * global integrity of the keystore. + */ +#define PSA_ERROR_DATA_CORRUPT ((psa_status_t)-152) + +/** Data read from storage is not valid for the implementation. + * + * This error indicates that some data read from storage does not have a valid + * format. It does not indicate the following situations, which have specific + * error codes: + * + * - When the storage or stored data is corrupted - use #PSA_ERROR_DATA_CORRUPT + * - When the storage fails for other reasons - use #PSA_ERROR_STORAGE_FAILURE + * - An invalid argument to the API - use #PSA_ERROR_INVALID_ARGUMENT + * + * This error is typically a result of either storage corruption on a + * cleartext storage backend, or an attempt to read data that was + * written by an incompatible version of the library. + */ +#define PSA_ERROR_DATA_INVALID ((psa_status_t)-153) + +/** The function that returns this status is defined as interruptible and + * still has work to do, thus the user should call the function again with the + * same operation context until it either returns #PSA_SUCCESS or any other + * error. This is not an error per se, more a notification of status. + */ +#define PSA_OPERATION_INCOMPLETE ((psa_status_t)-248) + +/* *INDENT-ON* */ + +/**@}*/ + +/** \defgroup crypto_types Key and algorithm types + * @{ + */ + +/* Note that key type values, including ECC family and DH group values, are + * embedded in the persistent key store, as part of key metadata. As a + * consequence, they must not be changed (unless the storage format version + * changes). + */ + +/** An invalid key type value. + * + * Zero is not the encoding of any key type. + */ +#define PSA_KEY_TYPE_NONE ((psa_key_type_t) 0x0000) + +/** Vendor-defined key type flag. + * + * Key types defined by this standard will never have the + * #PSA_KEY_TYPE_VENDOR_FLAG bit set. Vendors who define additional key types + * must use an encoding with the #PSA_KEY_TYPE_VENDOR_FLAG bit set and should + * respect the bitwise structure used by standard encodings whenever practical. + */ +#define PSA_KEY_TYPE_VENDOR_FLAG ((psa_key_type_t) 0x8000) + +#define PSA_KEY_TYPE_CATEGORY_MASK ((psa_key_type_t) 0x7000) +#define PSA_KEY_TYPE_CATEGORY_RAW ((psa_key_type_t) 0x1000) +#define PSA_KEY_TYPE_CATEGORY_SYMMETRIC ((psa_key_type_t) 0x2000) +#define PSA_KEY_TYPE_CATEGORY_PUBLIC_KEY ((psa_key_type_t) 0x4000) +#define PSA_KEY_TYPE_CATEGORY_KEY_PAIR ((psa_key_type_t) 0x7000) + +#define PSA_KEY_TYPE_CATEGORY_FLAG_PAIR ((psa_key_type_t) 0x3000) + +/** Whether a key type is vendor-defined. + * + * See also #PSA_KEY_TYPE_VENDOR_FLAG. + */ +#define PSA_KEY_TYPE_IS_VENDOR_DEFINED(type) \ + (((type) & PSA_KEY_TYPE_VENDOR_FLAG) != 0) + +/** Whether a key type is an unstructured array of bytes. + * + * This encompasses both symmetric keys and non-key data. + */ +#define PSA_KEY_TYPE_IS_UNSTRUCTURED(type) \ + (((type) & PSA_KEY_TYPE_CATEGORY_MASK) == PSA_KEY_TYPE_CATEGORY_RAW || \ + ((type) & PSA_KEY_TYPE_CATEGORY_MASK) == PSA_KEY_TYPE_CATEGORY_SYMMETRIC) + +/** Whether a key type is asymmetric: either a key pair or a public key. */ +#define PSA_KEY_TYPE_IS_ASYMMETRIC(type) \ + (((type) & PSA_KEY_TYPE_CATEGORY_MASK \ + & ~PSA_KEY_TYPE_CATEGORY_FLAG_PAIR) == \ + PSA_KEY_TYPE_CATEGORY_PUBLIC_KEY) +/** Whether a key type is the public part of a key pair. */ +#define PSA_KEY_TYPE_IS_PUBLIC_KEY(type) \ + (((type) & PSA_KEY_TYPE_CATEGORY_MASK) == PSA_KEY_TYPE_CATEGORY_PUBLIC_KEY) +/** Whether a key type is a key pair containing a private part and a public + * part. */ +#define PSA_KEY_TYPE_IS_KEY_PAIR(type) \ + (((type) & PSA_KEY_TYPE_CATEGORY_MASK) == PSA_KEY_TYPE_CATEGORY_KEY_PAIR) +/** The key pair type corresponding to a public key type. + * + * You may also pass a key pair type as \p type, it will be left unchanged. + * + * \param type A public key type or key pair type. + * + * \return The corresponding key pair type. + * If \p type is not a public key or a key pair, + * the return value is undefined. + */ +#define PSA_KEY_TYPE_KEY_PAIR_OF_PUBLIC_KEY(type) \ + ((type) | PSA_KEY_TYPE_CATEGORY_FLAG_PAIR) +/** The public key type corresponding to a key pair type. + * + * You may also pass a key pair type as \p type, it will be left unchanged. + * + * \param type A public key type or key pair type. + * + * \return The corresponding public key type. + * If \p type is not a public key or a key pair, + * the return value is undefined. + */ +#define PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(type) \ + ((type) & ~PSA_KEY_TYPE_CATEGORY_FLAG_PAIR) + +/** Raw data. + * + * A "key" of this type cannot be used for any cryptographic operation. + * Applications may use this type to store arbitrary data in the keystore. */ +#define PSA_KEY_TYPE_RAW_DATA ((psa_key_type_t) 0x1001) + +/** HMAC key. + * + * The key policy determines which underlying hash algorithm the key can be + * used for. + * + * HMAC keys should generally have the same size as the underlying hash. + * This size can be calculated with #PSA_HASH_LENGTH(\c alg) where + * \c alg is the HMAC algorithm or the underlying hash algorithm. */ +#define PSA_KEY_TYPE_HMAC ((psa_key_type_t) 0x1100) + +/** A secret for key derivation. + * + * This key type is for high-entropy secrets only. For low-entropy secrets, + * #PSA_KEY_TYPE_PASSWORD should be used instead. + * + * These keys can be used as the #PSA_KEY_DERIVATION_INPUT_SECRET or + * #PSA_KEY_DERIVATION_INPUT_PASSWORD input of key derivation algorithms. + * + * The key policy determines which key derivation algorithm the key + * can be used for. + */ +#define PSA_KEY_TYPE_DERIVE ((psa_key_type_t) 0x1200) + +/** A low-entropy secret for password hashing or key derivation. + * + * This key type is suitable for passwords and passphrases which are typically + * intended to be memorizable by humans, and have a low entropy relative to + * their size. It can be used for randomly generated or derived keys with + * maximum or near-maximum entropy, but #PSA_KEY_TYPE_DERIVE is more suitable + * for such keys. It is not suitable for passwords with extremely low entropy, + * such as numerical PINs. + * + * These keys can be used as the #PSA_KEY_DERIVATION_INPUT_PASSWORD input of + * key derivation algorithms. Algorithms that accept such an input were + * designed to accept low-entropy secret and are known as password hashing or + * key stretching algorithms. + * + * These keys cannot be used as the #PSA_KEY_DERIVATION_INPUT_SECRET input of + * key derivation algorithms, as the algorithms that take such an input expect + * it to be high-entropy. + * + * The key policy determines which key derivation algorithm the key can be + * used for, among the permissible subset defined above. + */ +#define PSA_KEY_TYPE_PASSWORD ((psa_key_type_t) 0x1203) + +/** A secret value that can be used to verify a password hash. + * + * The key policy determines which key derivation algorithm the key + * can be used for, among the same permissible subset as for + * #PSA_KEY_TYPE_PASSWORD. + */ +#define PSA_KEY_TYPE_PASSWORD_HASH ((psa_key_type_t) 0x1205) + +/** A secret value that can be used in when computing a password hash. + * + * The key policy determines which key derivation algorithm the key + * can be used for, among the subset of algorithms that can use pepper. + */ +#define PSA_KEY_TYPE_PEPPER ((psa_key_type_t) 0x1206) + +/** Key for a cipher, AEAD or MAC algorithm based on the AES block cipher. + * + * The size of the key can be 16 bytes (AES-128), 24 bytes (AES-192) or + * 32 bytes (AES-256). + */ +#define PSA_KEY_TYPE_AES ((psa_key_type_t) 0x2400) + +/** Key for a cipher, AEAD or MAC algorithm based on the + * ARIA block cipher. */ +#define PSA_KEY_TYPE_ARIA ((psa_key_type_t) 0x2406) + +/** Key for a cipher or MAC algorithm based on DES or 3DES (Triple-DES). + * + * The size of the key can be 64 bits (single DES), 128 bits (2-key 3DES) or + * 192 bits (3-key 3DES). + * + * Note that single DES and 2-key 3DES are weak and strongly + * deprecated and should only be used to decrypt legacy data. 3-key 3DES + * is weak and deprecated and should only be used in legacy protocols. + */ +#define PSA_KEY_TYPE_DES ((psa_key_type_t) 0x2301) + +/** Key for a cipher, AEAD or MAC algorithm based on the + * Camellia block cipher. */ +#define PSA_KEY_TYPE_CAMELLIA ((psa_key_type_t) 0x2403) + +/** Key for the ChaCha20 stream cipher or the Chacha20-Poly1305 AEAD algorithm. + * + * ChaCha20 and the ChaCha20_Poly1305 construction are defined in RFC 7539. + * + * \note For ChaCha20 and ChaCha20_Poly1305, Mbed TLS only supports + * 12-byte nonces. + * + * \note For ChaCha20, the initial counter value is 0. To encrypt or decrypt + * with the initial counter value 1, you can process and discard a + * 64-byte block before the real data. + */ +#define PSA_KEY_TYPE_CHACHA20 ((psa_key_type_t) 0x2004) + +/** RSA public key. + * + * The size of an RSA key is the bit size of the modulus. + */ +#define PSA_KEY_TYPE_RSA_PUBLIC_KEY ((psa_key_type_t) 0x4001) +/** RSA key pair (private and public key). + * + * The size of an RSA key is the bit size of the modulus. + */ +#define PSA_KEY_TYPE_RSA_KEY_PAIR ((psa_key_type_t) 0x7001) +/** Whether a key type is an RSA key (pair or public-only). */ +#define PSA_KEY_TYPE_IS_RSA(type) \ + (PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(type) == PSA_KEY_TYPE_RSA_PUBLIC_KEY) + +#define PSA_KEY_TYPE_ECC_PUBLIC_KEY_BASE ((psa_key_type_t) 0x4100) +#define PSA_KEY_TYPE_ECC_KEY_PAIR_BASE ((psa_key_type_t) 0x7100) +#define PSA_KEY_TYPE_ECC_CURVE_MASK ((psa_key_type_t) 0x00ff) +/** Elliptic curve key pair. + * + * The size of an elliptic curve key is the bit size associated with the curve, + * i.e. the bit size of *q* for a curve over a field *F<sub>q</sub>*. + * See the documentation of `PSA_ECC_FAMILY_xxx` curve families for details. + * + * \param curve A value of type ::psa_ecc_family_t that + * identifies the ECC curve to be used. + */ +#define PSA_KEY_TYPE_ECC_KEY_PAIR(curve) \ + (PSA_KEY_TYPE_ECC_KEY_PAIR_BASE | (curve)) +/** Elliptic curve public key. + * + * The size of an elliptic curve public key is the same as the corresponding + * private key (see #PSA_KEY_TYPE_ECC_KEY_PAIR and the documentation of + * `PSA_ECC_FAMILY_xxx` curve families). + * + * \param curve A value of type ::psa_ecc_family_t that + * identifies the ECC curve to be used. + */ +#define PSA_KEY_TYPE_ECC_PUBLIC_KEY(curve) \ + (PSA_KEY_TYPE_ECC_PUBLIC_KEY_BASE | (curve)) + +/** Whether a key type is an elliptic curve key (pair or public-only). */ +#define PSA_KEY_TYPE_IS_ECC(type) \ + ((PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(type) & \ + ~PSA_KEY_TYPE_ECC_CURVE_MASK) == PSA_KEY_TYPE_ECC_PUBLIC_KEY_BASE) +/** Whether a key type is an elliptic curve key pair. */ +#define PSA_KEY_TYPE_IS_ECC_KEY_PAIR(type) \ + (((type) & ~PSA_KEY_TYPE_ECC_CURVE_MASK) == \ + PSA_KEY_TYPE_ECC_KEY_PAIR_BASE) +/** Whether a key type is an elliptic curve public key. */ +#define PSA_KEY_TYPE_IS_ECC_PUBLIC_KEY(type) \ + (((type) & ~PSA_KEY_TYPE_ECC_CURVE_MASK) == \ + PSA_KEY_TYPE_ECC_PUBLIC_KEY_BASE) + +/** Extract the curve from an elliptic curve key type. */ +#define PSA_KEY_TYPE_ECC_GET_FAMILY(type) \ + ((psa_ecc_family_t) (PSA_KEY_TYPE_IS_ECC(type) ? \ + ((type) & PSA_KEY_TYPE_ECC_CURVE_MASK) : \ + 0)) + +/** Check if the curve of given family is Weierstrass elliptic curve. */ +#define PSA_ECC_FAMILY_IS_WEIERSTRASS(family) ((family & 0xc0) == 0) + +/** SEC Koblitz curves over prime fields. + * + * This family comprises the following curves: + * secp192k1, secp224k1, secp256k1. + * They are defined in _Standards for Efficient Cryptography_, + * _SEC 2: Recommended Elliptic Curve Domain Parameters_. + * https://www.secg.org/sec2-v2.pdf + */ +#define PSA_ECC_FAMILY_SECP_K1 ((psa_ecc_family_t) 0x17) + +/** SEC random curves over prime fields. + * + * This family comprises the following curves: + * secp192k1, secp224r1, secp256r1, secp384r1, secp521r1. + * They are defined in _Standards for Efficient Cryptography_, + * _SEC 2: Recommended Elliptic Curve Domain Parameters_. + * https://www.secg.org/sec2-v2.pdf + */ +#define PSA_ECC_FAMILY_SECP_R1 ((psa_ecc_family_t) 0x12) +/* SECP160R2 (SEC2 v1, obsolete) */ +#define PSA_ECC_FAMILY_SECP_R2 ((psa_ecc_family_t) 0x1b) + +/** SEC Koblitz curves over binary fields. + * + * This family comprises the following curves: + * sect163k1, sect233k1, sect239k1, sect283k1, sect409k1, sect571k1. + * They are defined in _Standards for Efficient Cryptography_, + * _SEC 2: Recommended Elliptic Curve Domain Parameters_. + * https://www.secg.org/sec2-v2.pdf + */ +#define PSA_ECC_FAMILY_SECT_K1 ((psa_ecc_family_t) 0x27) + +/** SEC random curves over binary fields. + * + * This family comprises the following curves: + * sect163r1, sect233r1, sect283r1, sect409r1, sect571r1. + * They are defined in _Standards for Efficient Cryptography_, + * _SEC 2: Recommended Elliptic Curve Domain Parameters_. + * https://www.secg.org/sec2-v2.pdf + */ +#define PSA_ECC_FAMILY_SECT_R1 ((psa_ecc_family_t) 0x22) + +/** SEC additional random curves over binary fields. + * + * This family comprises the following curve: + * sect163r2. + * It is defined in _Standards for Efficient Cryptography_, + * _SEC 2: Recommended Elliptic Curve Domain Parameters_. + * https://www.secg.org/sec2-v2.pdf + */ +#define PSA_ECC_FAMILY_SECT_R2 ((psa_ecc_family_t) 0x2b) + +/** Brainpool P random curves. + * + * This family comprises the following curves: + * brainpoolP160r1, brainpoolP192r1, brainpoolP224r1, brainpoolP256r1, + * brainpoolP320r1, brainpoolP384r1, brainpoolP512r1. + * It is defined in RFC 5639. + */ +#define PSA_ECC_FAMILY_BRAINPOOL_P_R1 ((psa_ecc_family_t) 0x30) + +/** Curve25519 and Curve448. + * + * This family comprises the following Montgomery curves: + * - 255-bit: Bernstein et al., + * _Curve25519: new Diffie-Hellman speed records_, LNCS 3958, 2006. + * The algorithm #PSA_ALG_ECDH performs X25519 when used with this curve. + * - 448-bit: Hamburg, + * _Ed448-Goldilocks, a new elliptic curve_, NIST ECC Workshop, 2015. + * The algorithm #PSA_ALG_ECDH performs X448 when used with this curve. + */ +#define PSA_ECC_FAMILY_MONTGOMERY ((psa_ecc_family_t) 0x41) + +/** The twisted Edwards curves Ed25519 and Ed448. + * + * These curves are suitable for EdDSA (#PSA_ALG_PURE_EDDSA for both curves, + * #PSA_ALG_ED25519PH for the 255-bit curve, + * #PSA_ALG_ED448PH for the 448-bit curve). + * + * This family comprises the following twisted Edwards curves: + * - 255-bit: Edwards25519, the twisted Edwards curve birationally equivalent + * to Curve25519. + * Bernstein et al., _Twisted Edwards curves_, Africacrypt 2008. + * - 448-bit: Edwards448, the twisted Edwards curve birationally equivalent + * to Curve448. + * Hamburg, _Ed448-Goldilocks, a new elliptic curve_, NIST ECC Workshop, 2015. + */ +#define PSA_ECC_FAMILY_TWISTED_EDWARDS ((psa_ecc_family_t) 0x42) + +#define PSA_KEY_TYPE_DH_PUBLIC_KEY_BASE ((psa_key_type_t) 0x4200) +#define PSA_KEY_TYPE_DH_KEY_PAIR_BASE ((psa_key_type_t) 0x7200) +#define PSA_KEY_TYPE_DH_GROUP_MASK ((psa_key_type_t) 0x00ff) +/** Diffie-Hellman key pair. + * + * \param group A value of type ::psa_dh_family_t that identifies the + * Diffie-Hellman group to be used. + */ +#define PSA_KEY_TYPE_DH_KEY_PAIR(group) \ + (PSA_KEY_TYPE_DH_KEY_PAIR_BASE | (group)) +/** Diffie-Hellman public key. + * + * \param group A value of type ::psa_dh_family_t that identifies the + * Diffie-Hellman group to be used. + */ +#define PSA_KEY_TYPE_DH_PUBLIC_KEY(group) \ + (PSA_KEY_TYPE_DH_PUBLIC_KEY_BASE | (group)) + +/** Whether a key type is a Diffie-Hellman key (pair or public-only). */ +#define PSA_KEY_TYPE_IS_DH(type) \ + ((PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(type) & \ + ~PSA_KEY_TYPE_DH_GROUP_MASK) == PSA_KEY_TYPE_DH_PUBLIC_KEY_BASE) +/** Whether a key type is a Diffie-Hellman key pair. */ +#define PSA_KEY_TYPE_IS_DH_KEY_PAIR(type) \ + (((type) & ~PSA_KEY_TYPE_DH_GROUP_MASK) == \ + PSA_KEY_TYPE_DH_KEY_PAIR_BASE) +/** Whether a key type is a Diffie-Hellman public key. */ +#define PSA_KEY_TYPE_IS_DH_PUBLIC_KEY(type) \ + (((type) & ~PSA_KEY_TYPE_DH_GROUP_MASK) == \ + PSA_KEY_TYPE_DH_PUBLIC_KEY_BASE) + +/** Extract the group from a Diffie-Hellman key type. */ +#define PSA_KEY_TYPE_DH_GET_FAMILY(type) \ + ((psa_dh_family_t) (PSA_KEY_TYPE_IS_DH(type) ? \ + ((type) & PSA_KEY_TYPE_DH_GROUP_MASK) : \ + 0)) + +/** Diffie-Hellman groups defined in RFC 7919 Appendix A. + * + * This family includes groups with the following key sizes (in bits): + * 2048, 3072, 4096, 6144, 8192. A given implementation may support + * all of these sizes or only a subset. + */ +#define PSA_DH_FAMILY_RFC7919 ((psa_dh_family_t) 0x03) + +#define PSA_GET_KEY_TYPE_BLOCK_SIZE_EXPONENT(type) \ + (((type) >> 8) & 7) +/** The block size of a block cipher. + * + * \param type A cipher key type (value of type #psa_key_type_t). + * + * \return The block size for a block cipher, or 1 for a stream cipher. + * The return value is undefined if \p type is not a supported + * cipher key type. + * + * \note It is possible to build stream cipher algorithms on top of a block + * cipher, for example CTR mode (#PSA_ALG_CTR). + * This macro only takes the key type into account, so it cannot be + * used to determine the size of the data that #psa_cipher_update() + * might buffer for future processing in general. + * + * \note This macro returns a compile-time constant if its argument is one. + * + * \warning This macro may evaluate its argument multiple times. + */ +#define PSA_BLOCK_CIPHER_BLOCK_LENGTH(type) \ + (((type) & PSA_KEY_TYPE_CATEGORY_MASK) == PSA_KEY_TYPE_CATEGORY_SYMMETRIC ? \ + 1u << PSA_GET_KEY_TYPE_BLOCK_SIZE_EXPONENT(type) : \ + 0u) + +/* Note that algorithm values are embedded in the persistent key store, + * as part of key metadata. As a consequence, they must not be changed + * (unless the storage format version changes). + */ + +/** Vendor-defined algorithm flag. + * + * Algorithms defined by this standard will never have the #PSA_ALG_VENDOR_FLAG + * bit set. Vendors who define additional algorithms must use an encoding with + * the #PSA_ALG_VENDOR_FLAG bit set and should respect the bitwise structure + * used by standard encodings whenever practical. + */ +#define PSA_ALG_VENDOR_FLAG ((psa_algorithm_t) 0x80000000) + +#define PSA_ALG_CATEGORY_MASK ((psa_algorithm_t) 0x7f000000) +#define PSA_ALG_CATEGORY_HASH ((psa_algorithm_t) 0x02000000) +#define PSA_ALG_CATEGORY_MAC ((psa_algorithm_t) 0x03000000) +#define PSA_ALG_CATEGORY_CIPHER ((psa_algorithm_t) 0x04000000) +#define PSA_ALG_CATEGORY_AEAD ((psa_algorithm_t) 0x05000000) +#define PSA_ALG_CATEGORY_SIGN ((psa_algorithm_t) 0x06000000) +#define PSA_ALG_CATEGORY_ASYMMETRIC_ENCRYPTION ((psa_algorithm_t) 0x07000000) +#define PSA_ALG_CATEGORY_KEY_DERIVATION ((psa_algorithm_t) 0x08000000) +#define PSA_ALG_CATEGORY_KEY_AGREEMENT ((psa_algorithm_t) 0x09000000) + +/** Whether an algorithm is vendor-defined. + * + * See also #PSA_ALG_VENDOR_FLAG. + */ +#define PSA_ALG_IS_VENDOR_DEFINED(alg) \ + (((alg) & PSA_ALG_VENDOR_FLAG) != 0) + +/** Whether the specified algorithm is a hash algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is a hash algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_HASH(alg) \ + (((alg) & PSA_ALG_CATEGORY_MASK) == PSA_ALG_CATEGORY_HASH) + +/** Whether the specified algorithm is a MAC algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is a MAC algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_MAC(alg) \ + (((alg) & PSA_ALG_CATEGORY_MASK) == PSA_ALG_CATEGORY_MAC) + +/** Whether the specified algorithm is a symmetric cipher algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is a symmetric cipher algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_CIPHER(alg) \ + (((alg) & PSA_ALG_CATEGORY_MASK) == PSA_ALG_CATEGORY_CIPHER) + +/** Whether the specified algorithm is an authenticated encryption + * with associated data (AEAD) algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is an AEAD algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_AEAD(alg) \ + (((alg) & PSA_ALG_CATEGORY_MASK) == PSA_ALG_CATEGORY_AEAD) + +/** Whether the specified algorithm is an asymmetric signature algorithm, + * also known as public-key signature algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is an asymmetric signature algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_SIGN(alg) \ + (((alg) & PSA_ALG_CATEGORY_MASK) == PSA_ALG_CATEGORY_SIGN) + +/** Whether the specified algorithm is an asymmetric encryption algorithm, + * also known as public-key encryption algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is an asymmetric encryption algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_ASYMMETRIC_ENCRYPTION(alg) \ + (((alg) & PSA_ALG_CATEGORY_MASK) == PSA_ALG_CATEGORY_ASYMMETRIC_ENCRYPTION) + +/** Whether the specified algorithm is a key agreement algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is a key agreement algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_KEY_AGREEMENT(alg) \ + (((alg) & PSA_ALG_CATEGORY_MASK) == PSA_ALG_CATEGORY_KEY_AGREEMENT) + +/** Whether the specified algorithm is a key derivation algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is a key derivation algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_KEY_DERIVATION(alg) \ + (((alg) & PSA_ALG_CATEGORY_MASK) == PSA_ALG_CATEGORY_KEY_DERIVATION) + +/** Whether the specified algorithm is a key stretching / password hashing + * algorithm. + * + * A key stretching / password hashing algorithm is a key derivation algorithm + * that is suitable for use with a low-entropy secret such as a password. + * Equivalently, it's a key derivation algorithm that uses a + * #PSA_KEY_DERIVATION_INPUT_PASSWORD input step. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is a key stretching / password hashing algorithm, 0 + * otherwise. This macro may return either 0 or 1 if \p alg is not a + * supported algorithm identifier. + */ +#define PSA_ALG_IS_KEY_DERIVATION_STRETCHING(alg) \ + (PSA_ALG_IS_KEY_DERIVATION(alg) && \ + (alg) & PSA_ALG_KEY_DERIVATION_STRETCHING_FLAG) + +/** An invalid algorithm identifier value. */ +/* *INDENT-OFF* (https://github.com/ARM-software/psa-arch-tests/issues/337) */ +#define PSA_ALG_NONE ((psa_algorithm_t)0) +/* *INDENT-ON* */ + +#define PSA_ALG_HASH_MASK ((psa_algorithm_t) 0x000000ff) +/** MD5 */ +#define PSA_ALG_MD5 ((psa_algorithm_t) 0x02000003) +/** PSA_ALG_RIPEMD160 */ +#define PSA_ALG_RIPEMD160 ((psa_algorithm_t) 0x02000004) +/** SHA1 */ +#define PSA_ALG_SHA_1 ((psa_algorithm_t) 0x02000005) +/** SHA2-224 */ +#define PSA_ALG_SHA_224 ((psa_algorithm_t) 0x02000008) +/** SHA2-256 */ +#define PSA_ALG_SHA_256 ((psa_algorithm_t) 0x02000009) +/** SHA2-384 */ +#define PSA_ALG_SHA_384 ((psa_algorithm_t) 0x0200000a) +/** SHA2-512 */ +#define PSA_ALG_SHA_512 ((psa_algorithm_t) 0x0200000b) +/** SHA2-512/224 */ +#define PSA_ALG_SHA_512_224 ((psa_algorithm_t) 0x0200000c) +/** SHA2-512/256 */ +#define PSA_ALG_SHA_512_256 ((psa_algorithm_t) 0x0200000d) +/** SHA3-224 */ +#define PSA_ALG_SHA3_224 ((psa_algorithm_t) 0x02000010) +/** SHA3-256 */ +#define PSA_ALG_SHA3_256 ((psa_algorithm_t) 0x02000011) +/** SHA3-384 */ +#define PSA_ALG_SHA3_384 ((psa_algorithm_t) 0x02000012) +/** SHA3-512 */ +#define PSA_ALG_SHA3_512 ((psa_algorithm_t) 0x02000013) +/** The first 512 bits (64 bytes) of the SHAKE256 output. + * + * This is the prehashing for Ed448ph (see #PSA_ALG_ED448PH). For other + * scenarios where a hash function based on SHA3/SHAKE is desired, SHA3-512 + * has the same output size and a (theoretically) higher security strength. + */ +#define PSA_ALG_SHAKE256_512 ((psa_algorithm_t) 0x02000015) + +/** In a hash-and-sign algorithm policy, allow any hash algorithm. + * + * This value may be used to form the algorithm usage field of a policy + * for a signature algorithm that is parametrized by a hash. The key + * may then be used to perform operations using the same signature + * algorithm parametrized with any supported hash. + * + * That is, suppose that `PSA_xxx_SIGNATURE` is one of the following macros: + * - #PSA_ALG_RSA_PKCS1V15_SIGN, #PSA_ALG_RSA_PSS, #PSA_ALG_RSA_PSS_ANY_SALT, + * - #PSA_ALG_ECDSA, #PSA_ALG_DETERMINISTIC_ECDSA. + * Then you may create and use a key as follows: + * - Set the key usage field using #PSA_ALG_ANY_HASH, for example: + * ``` + * psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_SIGN_HASH); // or VERIFY + * psa_set_key_algorithm(&attributes, PSA_xxx_SIGNATURE(PSA_ALG_ANY_HASH)); + * ``` + * - Import or generate key material. + * - Call psa_sign_hash() or psa_verify_hash(), passing + * an algorithm built from `PSA_xxx_SIGNATURE` and a specific hash. Each + * call to sign or verify a message may use a different hash. + * ``` + * psa_sign_hash(key, PSA_xxx_SIGNATURE(PSA_ALG_SHA_256), ...); + * psa_sign_hash(key, PSA_xxx_SIGNATURE(PSA_ALG_SHA_512), ...); + * psa_sign_hash(key, PSA_xxx_SIGNATURE(PSA_ALG_SHA3_256), ...); + * ``` + * + * This value may not be used to build other algorithms that are + * parametrized over a hash. For any valid use of this macro to build + * an algorithm \c alg, #PSA_ALG_IS_HASH_AND_SIGN(\c alg) is true. + * + * This value may not be used to build an algorithm specification to + * perform an operation. It is only valid to build policies. + */ +#define PSA_ALG_ANY_HASH ((psa_algorithm_t) 0x020000ff) + +#define PSA_ALG_MAC_SUBCATEGORY_MASK ((psa_algorithm_t) 0x00c00000) +#define PSA_ALG_HMAC_BASE ((psa_algorithm_t) 0x03800000) +/** Macro to build an HMAC algorithm. + * + * For example, #PSA_ALG_HMAC(#PSA_ALG_SHA_256) is HMAC-SHA-256. + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * + * \return The corresponding HMAC algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_HMAC(hash_alg) \ + (PSA_ALG_HMAC_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) + +#define PSA_ALG_HMAC_GET_HASH(hmac_alg) \ + (PSA_ALG_CATEGORY_HASH | ((hmac_alg) & PSA_ALG_HASH_MASK)) + +/** Whether the specified algorithm is an HMAC algorithm. + * + * HMAC is a family of MAC algorithms that are based on a hash function. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is an HMAC algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_HMAC(alg) \ + (((alg) & (PSA_ALG_CATEGORY_MASK | PSA_ALG_MAC_SUBCATEGORY_MASK)) == \ + PSA_ALG_HMAC_BASE) + +/* In the encoding of a MAC algorithm, the bits corresponding to + * PSA_ALG_MAC_TRUNCATION_MASK encode the length to which the MAC is + * truncated. As an exception, the value 0 means the untruncated algorithm, + * whatever its length is. The length is encoded in 6 bits, so it can + * reach up to 63; the largest MAC is 64 bytes so its trivial truncation + * to full length is correctly encoded as 0 and any non-trivial truncation + * is correctly encoded as a value between 1 and 63. */ +#define PSA_ALG_MAC_TRUNCATION_MASK ((psa_algorithm_t) 0x003f0000) +#define PSA_MAC_TRUNCATION_OFFSET 16 + +/* In the encoding of a MAC algorithm, the bit corresponding to + * #PSA_ALG_MAC_AT_LEAST_THIS_LENGTH_FLAG encodes the fact that the algorithm + * is a wildcard algorithm. A key with such wildcard algorithm as permitted + * algorithm policy can be used with any algorithm corresponding to the + * same base class and having a (potentially truncated) MAC length greater or + * equal than the one encoded in #PSA_ALG_MAC_TRUNCATION_MASK. */ +#define PSA_ALG_MAC_AT_LEAST_THIS_LENGTH_FLAG ((psa_algorithm_t) 0x00008000) + +/** Macro to build a truncated MAC algorithm. + * + * A truncated MAC algorithm is identical to the corresponding MAC + * algorithm except that the MAC value for the truncated algorithm + * consists of only the first \p mac_length bytes of the MAC value + * for the untruncated algorithm. + * + * \note This macro may allow constructing algorithm identifiers that + * are not valid, either because the specified length is larger + * than the untruncated MAC or because the specified length is + * smaller than permitted by the implementation. + * + * \note It is implementation-defined whether a truncated MAC that + * is truncated to the same length as the MAC of the untruncated + * algorithm is considered identical to the untruncated algorithm + * for policy comparison purposes. + * + * \param mac_alg A MAC algorithm identifier (value of type + * #psa_algorithm_t such that #PSA_ALG_IS_MAC(\p mac_alg) + * is true). This may be a truncated or untruncated + * MAC algorithm. + * \param mac_length Desired length of the truncated MAC in bytes. + * This must be at most the full length of the MAC + * and must be at least an implementation-specified + * minimum. The implementation-specified minimum + * shall not be zero. + * + * \return The corresponding MAC algorithm with the specified + * length. + * \return Unspecified if \p mac_alg is not a supported + * MAC algorithm or if \p mac_length is too small or + * too large for the specified MAC algorithm. + */ +#define PSA_ALG_TRUNCATED_MAC(mac_alg, mac_length) \ + (((mac_alg) & ~(PSA_ALG_MAC_TRUNCATION_MASK | \ + PSA_ALG_MAC_AT_LEAST_THIS_LENGTH_FLAG)) | \ + ((mac_length) << PSA_MAC_TRUNCATION_OFFSET & PSA_ALG_MAC_TRUNCATION_MASK)) + +/** Macro to build the base MAC algorithm corresponding to a truncated + * MAC algorithm. + * + * \param mac_alg A MAC algorithm identifier (value of type + * #psa_algorithm_t such that #PSA_ALG_IS_MAC(\p mac_alg) + * is true). This may be a truncated or untruncated + * MAC algorithm. + * + * \return The corresponding base MAC algorithm. + * \return Unspecified if \p mac_alg is not a supported + * MAC algorithm. + */ +#define PSA_ALG_FULL_LENGTH_MAC(mac_alg) \ + ((mac_alg) & ~(PSA_ALG_MAC_TRUNCATION_MASK | \ + PSA_ALG_MAC_AT_LEAST_THIS_LENGTH_FLAG)) + +/** Length to which a MAC algorithm is truncated. + * + * \param mac_alg A MAC algorithm identifier (value of type + * #psa_algorithm_t such that #PSA_ALG_IS_MAC(\p mac_alg) + * is true). + * + * \return Length of the truncated MAC in bytes. + * \return 0 if \p mac_alg is a non-truncated MAC algorithm. + * \return Unspecified if \p mac_alg is not a supported + * MAC algorithm. + */ +#define PSA_MAC_TRUNCATED_LENGTH(mac_alg) \ + (((mac_alg) & PSA_ALG_MAC_TRUNCATION_MASK) >> PSA_MAC_TRUNCATION_OFFSET) + +/** Macro to build a MAC minimum-MAC-length wildcard algorithm. + * + * A minimum-MAC-length MAC wildcard algorithm permits all MAC algorithms + * sharing the same base algorithm, and where the (potentially truncated) MAC + * length of the specific algorithm is equal to or larger then the wildcard + * algorithm's minimum MAC length. + * + * \note When setting the minimum required MAC length to less than the + * smallest MAC length allowed by the base algorithm, this effectively + * becomes an 'any-MAC-length-allowed' policy for that base algorithm. + * + * \param mac_alg A MAC algorithm identifier (value of type + * #psa_algorithm_t such that #PSA_ALG_IS_MAC(\p mac_alg) + * is true). + * \param min_mac_length Desired minimum length of the message authentication + * code in bytes. This must be at most the untruncated + * length of the MAC and must be at least 1. + * + * \return The corresponding MAC wildcard algorithm with the + * specified minimum length. + * \return Unspecified if \p mac_alg is not a supported MAC + * algorithm or if \p min_mac_length is less than 1 or + * too large for the specified MAC algorithm. + */ +#define PSA_ALG_AT_LEAST_THIS_LENGTH_MAC(mac_alg, min_mac_length) \ + (PSA_ALG_TRUNCATED_MAC(mac_alg, min_mac_length) | \ + PSA_ALG_MAC_AT_LEAST_THIS_LENGTH_FLAG) + +#define PSA_ALG_CIPHER_MAC_BASE ((psa_algorithm_t) 0x03c00000) +/** The CBC-MAC construction over a block cipher + * + * \warning CBC-MAC is insecure in many cases. + * A more secure mode, such as #PSA_ALG_CMAC, is recommended. + */ +#define PSA_ALG_CBC_MAC ((psa_algorithm_t) 0x03c00100) +/** The CMAC construction over a block cipher */ +#define PSA_ALG_CMAC ((psa_algorithm_t) 0x03c00200) + +/** Whether the specified algorithm is a MAC algorithm based on a block cipher. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is a MAC algorithm based on a block cipher, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_BLOCK_CIPHER_MAC(alg) \ + (((alg) & (PSA_ALG_CATEGORY_MASK | PSA_ALG_MAC_SUBCATEGORY_MASK)) == \ + PSA_ALG_CIPHER_MAC_BASE) + +#define PSA_ALG_CIPHER_STREAM_FLAG ((psa_algorithm_t) 0x00800000) +#define PSA_ALG_CIPHER_FROM_BLOCK_FLAG ((psa_algorithm_t) 0x00400000) + +/** Whether the specified algorithm is a stream cipher. + * + * A stream cipher is a symmetric cipher that encrypts or decrypts messages + * by applying a bitwise-xor with a stream of bytes that is generated + * from a key. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is a stream cipher algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier or if it is not a symmetric cipher algorithm. + */ +#define PSA_ALG_IS_STREAM_CIPHER(alg) \ + (((alg) & (PSA_ALG_CATEGORY_MASK | PSA_ALG_CIPHER_STREAM_FLAG)) == \ + (PSA_ALG_CATEGORY_CIPHER | PSA_ALG_CIPHER_STREAM_FLAG)) + +/** The stream cipher mode of a stream cipher algorithm. + * + * The underlying stream cipher is determined by the key type. + * - To use ChaCha20, use a key type of #PSA_KEY_TYPE_CHACHA20. + */ +#define PSA_ALG_STREAM_CIPHER ((psa_algorithm_t) 0x04800100) + +/** The CTR stream cipher mode. + * + * CTR is a stream cipher which is built from a block cipher. + * The underlying block cipher is determined by the key type. + * For example, to use AES-128-CTR, use this algorithm with + * a key of type #PSA_KEY_TYPE_AES and a length of 128 bits (16 bytes). + */ +#define PSA_ALG_CTR ((psa_algorithm_t) 0x04c01000) + +/** The CFB stream cipher mode. + * + * The underlying block cipher is determined by the key type. + */ +#define PSA_ALG_CFB ((psa_algorithm_t) 0x04c01100) + +/** The OFB stream cipher mode. + * + * The underlying block cipher is determined by the key type. + */ +#define PSA_ALG_OFB ((psa_algorithm_t) 0x04c01200) + +/** The XTS cipher mode. + * + * XTS is a cipher mode which is built from a block cipher. It requires at + * least one full block of input, but beyond this minimum the input + * does not need to be a whole number of blocks. + */ +#define PSA_ALG_XTS ((psa_algorithm_t) 0x0440ff00) + +/** The Electronic Code Book (ECB) mode of a block cipher, with no padding. + * + * \warning ECB mode does not protect the confidentiality of the encrypted data + * except in extremely narrow circumstances. It is recommended that applications + * only use ECB if they need to construct an operating mode that the + * implementation does not provide. Implementations are encouraged to provide + * the modes that applications need in preference to supporting direct access + * to ECB. + * + * The underlying block cipher is determined by the key type. + * + * This symmetric cipher mode can only be used with messages whose lengths are a + * multiple of the block size of the chosen block cipher. + * + * ECB mode does not accept an initialization vector (IV). When using a + * multi-part cipher operation with this algorithm, psa_cipher_generate_iv() + * and psa_cipher_set_iv() must not be called. + */ +#define PSA_ALG_ECB_NO_PADDING ((psa_algorithm_t) 0x04404400) + +/** The CBC block cipher chaining mode, with no padding. + * + * The underlying block cipher is determined by the key type. + * + * This symmetric cipher mode can only be used with messages whose lengths + * are whole number of blocks for the chosen block cipher. + */ +#define PSA_ALG_CBC_NO_PADDING ((psa_algorithm_t) 0x04404000) + +/** The CBC block cipher chaining mode with PKCS#7 padding. + * + * The underlying block cipher is determined by the key type. + * + * This is the padding method defined by PKCS#7 (RFC 2315) §10.3. + */ +#define PSA_ALG_CBC_PKCS7 ((psa_algorithm_t) 0x04404100) + +#define PSA_ALG_AEAD_FROM_BLOCK_FLAG ((psa_algorithm_t) 0x00400000) + +/** Whether the specified algorithm is an AEAD mode on a block cipher. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is an AEAD algorithm which is an AEAD mode based on + * a block cipher, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) \ + (((alg) & (PSA_ALG_CATEGORY_MASK | PSA_ALG_AEAD_FROM_BLOCK_FLAG)) == \ + (PSA_ALG_CATEGORY_AEAD | PSA_ALG_AEAD_FROM_BLOCK_FLAG)) + +/** The CCM authenticated encryption algorithm. + * + * The underlying block cipher is determined by the key type. + */ +#define PSA_ALG_CCM ((psa_algorithm_t) 0x05500100) + +/** The CCM* cipher mode without authentication. + * + * This is CCM* as specified in IEEE 802.15.4 §7, with a tag length of 0. + * For CCM* with a nonzero tag length, use the AEAD algorithm #PSA_ALG_CCM. + * + * The underlying block cipher is determined by the key type. + * + * Currently only 13-byte long IV's are supported. + */ +#define PSA_ALG_CCM_STAR_NO_TAG ((psa_algorithm_t) 0x04c01300) + +/** The GCM authenticated encryption algorithm. + * + * The underlying block cipher is determined by the key type. + */ +#define PSA_ALG_GCM ((psa_algorithm_t) 0x05500200) + +/** The Chacha20-Poly1305 AEAD algorithm. + * + * The ChaCha20_Poly1305 construction is defined in RFC 7539. + * + * Implementations must support 12-byte nonces, may support 8-byte nonces, + * and should reject other sizes. + * + * Implementations must support 16-byte tags and should reject other sizes. + */ +#define PSA_ALG_CHACHA20_POLY1305 ((psa_algorithm_t) 0x05100500) + +/* In the encoding of an AEAD algorithm, the bits corresponding to + * PSA_ALG_AEAD_TAG_LENGTH_MASK encode the length of the AEAD tag. + * The constants for default lengths follow this encoding. + */ +#define PSA_ALG_AEAD_TAG_LENGTH_MASK ((psa_algorithm_t) 0x003f0000) +#define PSA_AEAD_TAG_LENGTH_OFFSET 16 + +/* In the encoding of an AEAD algorithm, the bit corresponding to + * #PSA_ALG_AEAD_AT_LEAST_THIS_LENGTH_FLAG encodes the fact that the algorithm + * is a wildcard algorithm. A key with such wildcard algorithm as permitted + * algorithm policy can be used with any algorithm corresponding to the + * same base class and having a tag length greater than or equal to the one + * encoded in #PSA_ALG_AEAD_TAG_LENGTH_MASK. */ +#define PSA_ALG_AEAD_AT_LEAST_THIS_LENGTH_FLAG ((psa_algorithm_t) 0x00008000) + +/** Macro to build a shortened AEAD algorithm. + * + * A shortened AEAD algorithm is similar to the corresponding AEAD + * algorithm, but has an authentication tag that consists of fewer bytes. + * Depending on the algorithm, the tag length may affect the calculation + * of the ciphertext. + * + * \param aead_alg An AEAD algorithm identifier (value of type + * #psa_algorithm_t such that #PSA_ALG_IS_AEAD(\p aead_alg) + * is true). + * \param tag_length Desired length of the authentication tag in bytes. + * + * \return The corresponding AEAD algorithm with the specified + * length. + * \return Unspecified if \p aead_alg is not a supported + * AEAD algorithm or if \p tag_length is not valid + * for the specified AEAD algorithm. + */ +#define PSA_ALG_AEAD_WITH_SHORTENED_TAG(aead_alg, tag_length) \ + (((aead_alg) & ~(PSA_ALG_AEAD_TAG_LENGTH_MASK | \ + PSA_ALG_AEAD_AT_LEAST_THIS_LENGTH_FLAG)) | \ + ((tag_length) << PSA_AEAD_TAG_LENGTH_OFFSET & \ + PSA_ALG_AEAD_TAG_LENGTH_MASK)) + +/** Retrieve the tag length of a specified AEAD algorithm + * + * \param aead_alg An AEAD algorithm identifier (value of type + * #psa_algorithm_t such that #PSA_ALG_IS_AEAD(\p aead_alg) + * is true). + * + * \return The tag length specified by the input algorithm. + * \return Unspecified if \p aead_alg is not a supported + * AEAD algorithm. + */ +#define PSA_ALG_AEAD_GET_TAG_LENGTH(aead_alg) \ + (((aead_alg) & PSA_ALG_AEAD_TAG_LENGTH_MASK) >> \ + PSA_AEAD_TAG_LENGTH_OFFSET) + +/** Calculate the corresponding AEAD algorithm with the default tag length. + * + * \param aead_alg An AEAD algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_AEAD(\p aead_alg) is true). + * + * \return The corresponding AEAD algorithm with the default + * tag length for that algorithm. + */ +#define PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG(aead_alg) \ + ( \ + PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG_CASE(aead_alg, PSA_ALG_CCM) \ + PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG_CASE(aead_alg, PSA_ALG_GCM) \ + PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG_CASE(aead_alg, PSA_ALG_CHACHA20_POLY1305) \ + 0) +#define PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG_CASE(aead_alg, ref) \ + PSA_ALG_AEAD_WITH_SHORTENED_TAG(aead_alg, 0) == \ + PSA_ALG_AEAD_WITH_SHORTENED_TAG(ref, 0) ? \ + ref : + +/** Macro to build an AEAD minimum-tag-length wildcard algorithm. + * + * A minimum-tag-length AEAD wildcard algorithm permits all AEAD algorithms + * sharing the same base algorithm, and where the tag length of the specific + * algorithm is equal to or larger then the minimum tag length specified by the + * wildcard algorithm. + * + * \note When setting the minimum required tag length to less than the + * smallest tag length allowed by the base algorithm, this effectively + * becomes an 'any-tag-length-allowed' policy for that base algorithm. + * + * \param aead_alg An AEAD algorithm identifier (value of type + * #psa_algorithm_t such that + * #PSA_ALG_IS_AEAD(\p aead_alg) is true). + * \param min_tag_length Desired minimum length of the authentication tag in + * bytes. This must be at least 1 and at most the largest + * allowed tag length of the algorithm. + * + * \return The corresponding AEAD wildcard algorithm with the + * specified minimum length. + * \return Unspecified if \p aead_alg is not a supported + * AEAD algorithm or if \p min_tag_length is less than 1 + * or too large for the specified AEAD algorithm. + */ +#define PSA_ALG_AEAD_WITH_AT_LEAST_THIS_LENGTH_TAG(aead_alg, min_tag_length) \ + (PSA_ALG_AEAD_WITH_SHORTENED_TAG(aead_alg, min_tag_length) | \ + PSA_ALG_AEAD_AT_LEAST_THIS_LENGTH_FLAG) + +#define PSA_ALG_RSA_PKCS1V15_SIGN_BASE ((psa_algorithm_t) 0x06000200) +/** RSA PKCS#1 v1.5 signature with hashing. + * + * This is the signature scheme defined by RFC 8017 + * (PKCS#1: RSA Cryptography Specifications) under the name + * RSASSA-PKCS1-v1_5. + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * This includes #PSA_ALG_ANY_HASH + * when specifying the algorithm in a usage policy. + * + * \return The corresponding RSA PKCS#1 v1.5 signature algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_RSA_PKCS1V15_SIGN(hash_alg) \ + (PSA_ALG_RSA_PKCS1V15_SIGN_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) +/** Raw PKCS#1 v1.5 signature. + * + * The input to this algorithm is the DigestInfo structure used by + * RFC 8017 (PKCS#1: RSA Cryptography Specifications), §9.2 + * steps 3–6. + */ +#define PSA_ALG_RSA_PKCS1V15_SIGN_RAW PSA_ALG_RSA_PKCS1V15_SIGN_BASE +#define PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_RSA_PKCS1V15_SIGN_BASE) + +#define PSA_ALG_RSA_PSS_BASE ((psa_algorithm_t) 0x06000300) +#define PSA_ALG_RSA_PSS_ANY_SALT_BASE ((psa_algorithm_t) 0x06001300) +/** RSA PSS signature with hashing. + * + * This is the signature scheme defined by RFC 8017 + * (PKCS#1: RSA Cryptography Specifications) under the name + * RSASSA-PSS, with the message generation function MGF1, and with + * a salt length equal to the length of the hash, or the largest + * possible salt length for the algorithm and key size if that is + * smaller than the hash length. The specified hash algorithm is + * used to hash the input message, to create the salted hash, and + * for the mask generation. + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * This includes #PSA_ALG_ANY_HASH + * when specifying the algorithm in a usage policy. + * + * \return The corresponding RSA PSS signature algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_RSA_PSS(hash_alg) \ + (PSA_ALG_RSA_PSS_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) + +/** RSA PSS signature with hashing with relaxed verification. + * + * This algorithm has the same behavior as #PSA_ALG_RSA_PSS when signing, + * but allows an arbitrary salt length (including \c 0) when verifying a + * signature. + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * This includes #PSA_ALG_ANY_HASH + * when specifying the algorithm in a usage policy. + * + * \return The corresponding RSA PSS signature algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_RSA_PSS_ANY_SALT(hash_alg) \ + (PSA_ALG_RSA_PSS_ANY_SALT_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) + +/** Whether the specified algorithm is RSA PSS with standard salt. + * + * \param alg An algorithm value or an algorithm policy wildcard. + * + * \return 1 if \p alg is of the form + * #PSA_ALG_RSA_PSS(\c hash_alg), + * where \c hash_alg is a hash algorithm or + * #PSA_ALG_ANY_HASH. 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not + * a supported algorithm identifier or policy. + */ +#define PSA_ALG_IS_RSA_PSS_STANDARD_SALT(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_RSA_PSS_BASE) + +/** Whether the specified algorithm is RSA PSS with any salt. + * + * \param alg An algorithm value or an algorithm policy wildcard. + * + * \return 1 if \p alg is of the form + * #PSA_ALG_RSA_PSS_ANY_SALT_BASE(\c hash_alg), + * where \c hash_alg is a hash algorithm or + * #PSA_ALG_ANY_HASH. 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not + * a supported algorithm identifier or policy. + */ +#define PSA_ALG_IS_RSA_PSS_ANY_SALT(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_RSA_PSS_ANY_SALT_BASE) + +/** Whether the specified algorithm is RSA PSS. + * + * This includes any of the RSA PSS algorithm variants, regardless of the + * constraints on salt length. + * + * \param alg An algorithm value or an algorithm policy wildcard. + * + * \return 1 if \p alg is of the form + * #PSA_ALG_RSA_PSS(\c hash_alg) or + * #PSA_ALG_RSA_PSS_ANY_SALT_BASE(\c hash_alg), + * where \c hash_alg is a hash algorithm or + * #PSA_ALG_ANY_HASH. 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not + * a supported algorithm identifier or policy. + */ +#define PSA_ALG_IS_RSA_PSS(alg) \ + (PSA_ALG_IS_RSA_PSS_STANDARD_SALT(alg) || \ + PSA_ALG_IS_RSA_PSS_ANY_SALT(alg)) + +#define PSA_ALG_ECDSA_BASE ((psa_algorithm_t) 0x06000600) +/** ECDSA signature with hashing. + * + * This is the ECDSA signature scheme defined by ANSI X9.62, + * with a random per-message secret number (*k*). + * + * The representation of the signature as a byte string consists of + * the concatenation of the signature values *r* and *s*. Each of + * *r* and *s* is encoded as an *N*-octet string, where *N* is the length + * of the base point of the curve in octets. Each value is represented + * in big-endian order (most significant octet first). + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * This includes #PSA_ALG_ANY_HASH + * when specifying the algorithm in a usage policy. + * + * \return The corresponding ECDSA signature algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_ECDSA(hash_alg) \ + (PSA_ALG_ECDSA_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) +/** ECDSA signature without hashing. + * + * This is the same signature scheme as #PSA_ALG_ECDSA(), but + * without specifying a hash algorithm. This algorithm may only be + * used to sign or verify a sequence of bytes that should be an + * already-calculated hash. Note that the input is padded with + * zeros on the left or truncated on the left as required to fit + * the curve size. + */ +#define PSA_ALG_ECDSA_ANY PSA_ALG_ECDSA_BASE +#define PSA_ALG_DETERMINISTIC_ECDSA_BASE ((psa_algorithm_t) 0x06000700) +/** Deterministic ECDSA signature with hashing. + * + * This is the deterministic ECDSA signature scheme defined by RFC 6979. + * + * The representation of a signature is the same as with #PSA_ALG_ECDSA(). + * + * Note that when this algorithm is used for verification, signatures + * made with randomized ECDSA (#PSA_ALG_ECDSA(\p hash_alg)) with the + * same private key are accepted. In other words, + * #PSA_ALG_DETERMINISTIC_ECDSA(\p hash_alg) differs from + * #PSA_ALG_ECDSA(\p hash_alg) only for signature, not for verification. + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * This includes #PSA_ALG_ANY_HASH + * when specifying the algorithm in a usage policy. + * + * \return The corresponding deterministic ECDSA signature + * algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_DETERMINISTIC_ECDSA(hash_alg) \ + (PSA_ALG_DETERMINISTIC_ECDSA_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) +#define PSA_ALG_ECDSA_DETERMINISTIC_FLAG ((psa_algorithm_t) 0x00000100) +#define PSA_ALG_IS_ECDSA(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK & ~PSA_ALG_ECDSA_DETERMINISTIC_FLAG) == \ + PSA_ALG_ECDSA_BASE) +#define PSA_ALG_ECDSA_IS_DETERMINISTIC(alg) \ + (((alg) & PSA_ALG_ECDSA_DETERMINISTIC_FLAG) != 0) +#define PSA_ALG_IS_DETERMINISTIC_ECDSA(alg) \ + (PSA_ALG_IS_ECDSA(alg) && PSA_ALG_ECDSA_IS_DETERMINISTIC(alg)) +#define PSA_ALG_IS_RANDOMIZED_ECDSA(alg) \ + (PSA_ALG_IS_ECDSA(alg) && !PSA_ALG_ECDSA_IS_DETERMINISTIC(alg)) + +/** Edwards-curve digital signature algorithm without prehashing (PureEdDSA), + * using standard parameters. + * + * Contexts are not supported in the current version of this specification + * because there is no suitable signature interface that can take the + * context as a parameter. A future version of this specification may add + * suitable functions and extend this algorithm to support contexts. + * + * PureEdDSA requires an elliptic curve key on a twisted Edwards curve. + * In this specification, the following curves are supported: + * - #PSA_ECC_FAMILY_TWISTED_EDWARDS, 255-bit: Ed25519 as specified + * in RFC 8032. + * The curve is Edwards25519. + * The hash function used internally is SHA-512. + * - #PSA_ECC_FAMILY_TWISTED_EDWARDS, 448-bit: Ed448 as specified + * in RFC 8032. + * The curve is Edwards448. + * The hash function used internally is the first 114 bytes of the + * SHAKE256 output. + * + * This algorithm can be used with psa_sign_message() and + * psa_verify_message(). Since there is no prehashing, it cannot be used + * with psa_sign_hash() or psa_verify_hash(). + * + * The signature format is the concatenation of R and S as defined by + * RFC 8032 §5.1.6 and §5.2.6 (a 64-byte string for Ed25519, a 114-byte + * string for Ed448). + */ +#define PSA_ALG_PURE_EDDSA ((psa_algorithm_t) 0x06000800) + +#define PSA_ALG_HASH_EDDSA_BASE ((psa_algorithm_t) 0x06000900) +#define PSA_ALG_IS_HASH_EDDSA(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_HASH_EDDSA_BASE) + +/** Edwards-curve digital signature algorithm with prehashing (HashEdDSA), + * using SHA-512 and the Edwards25519 curve. + * + * See #PSA_ALG_PURE_EDDSA regarding context support and the signature format. + * + * This algorithm is Ed25519 as specified in RFC 8032. + * The curve is Edwards25519. + * The prehash is SHA-512. + * The hash function used internally is SHA-512. + * + * This is a hash-and-sign algorithm: to calculate a signature, + * you can either: + * - call psa_sign_message() on the message; + * - or calculate the SHA-512 hash of the message + * with psa_hash_compute() + * or with a multi-part hash operation started with psa_hash_setup(), + * using the hash algorithm #PSA_ALG_SHA_512, + * then sign the calculated hash with psa_sign_hash(). + * Verifying a signature is similar, using psa_verify_message() or + * psa_verify_hash() instead of the signature function. + */ +#define PSA_ALG_ED25519PH \ + (PSA_ALG_HASH_EDDSA_BASE | (PSA_ALG_SHA_512 & PSA_ALG_HASH_MASK)) + +/** Edwards-curve digital signature algorithm with prehashing (HashEdDSA), + * using SHAKE256 and the Edwards448 curve. + * + * See #PSA_ALG_PURE_EDDSA regarding context support and the signature format. + * + * This algorithm is Ed448 as specified in RFC 8032. + * The curve is Edwards448. + * The prehash is the first 64 bytes of the SHAKE256 output. + * The hash function used internally is the first 114 bytes of the + * SHAKE256 output. + * + * This is a hash-and-sign algorithm: to calculate a signature, + * you can either: + * - call psa_sign_message() on the message; + * - or calculate the first 64 bytes of the SHAKE256 output of the message + * with psa_hash_compute() + * or with a multi-part hash operation started with psa_hash_setup(), + * using the hash algorithm #PSA_ALG_SHAKE256_512, + * then sign the calculated hash with psa_sign_hash(). + * Verifying a signature is similar, using psa_verify_message() or + * psa_verify_hash() instead of the signature function. + */ +#define PSA_ALG_ED448PH \ + (PSA_ALG_HASH_EDDSA_BASE | (PSA_ALG_SHAKE256_512 & PSA_ALG_HASH_MASK)) + +/* Default definition, to be overridden if the library is extended with + * more hash-and-sign algorithms that we want to keep out of this header + * file. */ +#define PSA_ALG_IS_VENDOR_HASH_AND_SIGN(alg) 0 + +/** Whether the specified algorithm is a signature algorithm that can be used + * with psa_sign_hash() and psa_verify_hash(). + * + * This encompasses all strict hash-and-sign algorithms categorized by + * PSA_ALG_IS_HASH_AND_SIGN(), as well as algorithms that follow the + * paradigm more loosely: + * - #PSA_ALG_RSA_PKCS1V15_SIGN_RAW (expects its input to be an encoded hash) + * - #PSA_ALG_ECDSA_ANY (doesn't specify what kind of hash the input is) + * + * \param alg An algorithm identifier (value of type psa_algorithm_t). + * + * \return 1 if alg is a signature algorithm that can be used to sign a + * hash. 0 if alg is a signature algorithm that can only be used + * to sign a message. 0 if alg is not a signature algorithm. + * This macro can return either 0 or 1 if alg is not a + * supported algorithm identifier. + */ +#define PSA_ALG_IS_SIGN_HASH(alg) \ + (PSA_ALG_IS_RSA_PSS(alg) || PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg) || \ + PSA_ALG_IS_ECDSA(alg) || PSA_ALG_IS_HASH_EDDSA(alg) || \ + PSA_ALG_IS_VENDOR_HASH_AND_SIGN(alg)) + +/** Whether the specified algorithm is a signature algorithm that can be used + * with psa_sign_message() and psa_verify_message(). + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if alg is a signature algorithm that can be used to sign a + * message. 0 if \p alg is a signature algorithm that can only be used + * to sign an already-calculated hash. 0 if \p alg is not a signature + * algorithm. This macro can return either 0 or 1 if \p alg is not a + * supported algorithm identifier. + */ +#define PSA_ALG_IS_SIGN_MESSAGE(alg) \ + (PSA_ALG_IS_SIGN_HASH(alg) || (alg) == PSA_ALG_PURE_EDDSA) + +/** Whether the specified algorithm is a hash-and-sign algorithm. + * + * Hash-and-sign algorithms are asymmetric (public-key) signature algorithms + * structured in two parts: first the calculation of a hash in a way that + * does not depend on the key, then the calculation of a signature from the + * hash value and the key. Hash-and-sign algorithms encode the hash + * used for the hashing step, and you can call #PSA_ALG_SIGN_GET_HASH + * to extract this algorithm. + * + * Thus, for a hash-and-sign algorithm, + * `psa_sign_message(key, alg, input, ...)` is equivalent to + * ``` + * psa_hash_compute(PSA_ALG_SIGN_GET_HASH(alg), input, ..., hash, ...); + * psa_sign_hash(key, alg, hash, ..., signature, ...); + * ``` + * Most usefully, separating the hash from the signature allows the hash + * to be calculated in multiple steps with psa_hash_setup(), psa_hash_update() + * and psa_hash_finish(). Likewise psa_verify_message() is equivalent to + * calculating the hash and then calling psa_verify_hash(). + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is a hash-and-sign algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_HASH_AND_SIGN(alg) \ + (PSA_ALG_IS_SIGN_HASH(alg) && \ + ((alg) & PSA_ALG_HASH_MASK) != 0) + +/** Get the hash used by a hash-and-sign signature algorithm. + * + * A hash-and-sign algorithm is a signature algorithm which is + * composed of two phases: first a hashing phase which does not use + * the key and produces a hash of the input message, then a signing + * phase which only uses the hash and the key and not the message + * itself. + * + * \param alg A signature algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_SIGN(\p alg) is true). + * + * \return The underlying hash algorithm if \p alg is a hash-and-sign + * algorithm. + * \return 0 if \p alg is a signature algorithm that does not + * follow the hash-and-sign structure. + * \return Unspecified if \p alg is not a signature algorithm or + * if it is not supported by the implementation. + */ +#define PSA_ALG_SIGN_GET_HASH(alg) \ + (PSA_ALG_IS_HASH_AND_SIGN(alg) ? \ + ((alg) & PSA_ALG_HASH_MASK) | PSA_ALG_CATEGORY_HASH : \ + 0) + +/** RSA PKCS#1 v1.5 encryption. + * + * \warning Calling psa_asymmetric_decrypt() with this algorithm as a + * parameter is considered an inherently dangerous function + * (CWE-242). Unless it is used in a side channel free and safe + * way (eg. implementing the TLS protocol as per 7.4.7.1 of + * RFC 5246), the calling code is vulnerable. + * + */ +#define PSA_ALG_RSA_PKCS1V15_CRYPT ((psa_algorithm_t) 0x07000200) + +#define PSA_ALG_RSA_OAEP_BASE ((psa_algorithm_t) 0x07000300) +/** RSA OAEP encryption. + * + * This is the encryption scheme defined by RFC 8017 + * (PKCS#1: RSA Cryptography Specifications) under the name + * RSAES-OAEP, with the message generation function MGF1. + * + * \param hash_alg The hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true) to use + * for MGF1. + * + * \return The corresponding RSA OAEP encryption algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_RSA_OAEP(hash_alg) \ + (PSA_ALG_RSA_OAEP_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) +#define PSA_ALG_IS_RSA_OAEP(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_RSA_OAEP_BASE) +#define PSA_ALG_RSA_OAEP_GET_HASH(alg) \ + (PSA_ALG_IS_RSA_OAEP(alg) ? \ + ((alg) & PSA_ALG_HASH_MASK) | PSA_ALG_CATEGORY_HASH : \ + 0) + +#define PSA_ALG_HKDF_BASE ((psa_algorithm_t) 0x08000100) +/** Macro to build an HKDF algorithm. + * + * For example, `PSA_ALG_HKDF(PSA_ALG_SHA_256)` is HKDF using HMAC-SHA-256. + * + * This key derivation algorithm uses the following inputs: + * - #PSA_KEY_DERIVATION_INPUT_SALT is the salt used in the "extract" step. + * It is optional; if omitted, the derivation uses an empty salt. + * - #PSA_KEY_DERIVATION_INPUT_SECRET is the secret key used in the "extract" step. + * - #PSA_KEY_DERIVATION_INPUT_INFO is the info string used in the "expand" step. + * You must pass #PSA_KEY_DERIVATION_INPUT_SALT before #PSA_KEY_DERIVATION_INPUT_SECRET. + * You may pass #PSA_KEY_DERIVATION_INPUT_INFO at any time after steup and before + * starting to generate output. + * + * \warning HKDF processes the salt as follows: first hash it with hash_alg + * if the salt is longer than the block size of the hash algorithm; then + * pad with null bytes up to the block size. As a result, it is possible + * for distinct salt inputs to result in the same outputs. To ensure + * unique outputs, it is recommended to use a fixed length for salt values. + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * + * \return The corresponding HKDF algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_HKDF(hash_alg) \ + (PSA_ALG_HKDF_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) +/** Whether the specified algorithm is an HKDF algorithm. + * + * HKDF is a family of key derivation algorithms that are based on a hash + * function and the HMAC construction. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \c alg is an HKDF algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \c alg is not a supported + * key derivation algorithm identifier. + */ +#define PSA_ALG_IS_HKDF(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_HKDF_BASE) +#define PSA_ALG_HKDF_GET_HASH(hkdf_alg) \ + (PSA_ALG_CATEGORY_HASH | ((hkdf_alg) & PSA_ALG_HASH_MASK)) + +#define PSA_ALG_HKDF_EXTRACT_BASE ((psa_algorithm_t) 0x08000400) +/** Macro to build an HKDF-Extract algorithm. + * + * For example, `PSA_ALG_HKDF_EXTRACT(PSA_ALG_SHA_256)` is + * HKDF-Extract using HMAC-SHA-256. + * + * This key derivation algorithm uses the following inputs: + * - PSA_KEY_DERIVATION_INPUT_SALT is the salt. + * - PSA_KEY_DERIVATION_INPUT_SECRET is the input keying material used in the + * "extract" step. + * The inputs are mandatory and must be passed in the order above. + * Each input may only be passed once. + * + * \warning HKDF-Extract is not meant to be used on its own. PSA_ALG_HKDF + * should be used instead if possible. PSA_ALG_HKDF_EXTRACT is provided + * as a separate algorithm for the sake of protocols that use it as a + * building block. It may also be a slight performance optimization + * in applications that use HKDF with the same salt and key but many + * different info strings. + * + * \warning HKDF processes the salt as follows: first hash it with hash_alg + * if the salt is longer than the block size of the hash algorithm; then + * pad with null bytes up to the block size. As a result, it is possible + * for distinct salt inputs to result in the same outputs. To ensure + * unique outputs, it is recommended to use a fixed length for salt values. + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * + * \return The corresponding HKDF-Extract algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_HKDF_EXTRACT(hash_alg) \ + (PSA_ALG_HKDF_EXTRACT_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) +/** Whether the specified algorithm is an HKDF-Extract algorithm. + * + * HKDF-Extract is a family of key derivation algorithms that are based + * on a hash function and the HMAC construction. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \c alg is an HKDF-Extract algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \c alg is not a supported + * key derivation algorithm identifier. + */ +#define PSA_ALG_IS_HKDF_EXTRACT(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_HKDF_EXTRACT_BASE) + +#define PSA_ALG_HKDF_EXPAND_BASE ((psa_algorithm_t) 0x08000500) +/** Macro to build an HKDF-Expand algorithm. + * + * For example, `PSA_ALG_HKDF_EXPAND(PSA_ALG_SHA_256)` is + * HKDF-Expand using HMAC-SHA-256. + * + * This key derivation algorithm uses the following inputs: + * - PSA_KEY_DERIVATION_INPUT_SECRET is the pseudorandom key (PRK). + * - PSA_KEY_DERIVATION_INPUT_INFO is the info string. + * + * The inputs are mandatory and must be passed in the order above. + * Each input may only be passed once. + * + * \warning HKDF-Expand is not meant to be used on its own. `PSA_ALG_HKDF` + * should be used instead if possible. `PSA_ALG_HKDF_EXPAND` is provided as + * a separate algorithm for the sake of protocols that use it as a building + * block. It may also be a slight performance optimization in applications + * that use HKDF with the same salt and key but many different info strings. + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * + * \return The corresponding HKDF-Expand algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_HKDF_EXPAND(hash_alg) \ + (PSA_ALG_HKDF_EXPAND_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) +/** Whether the specified algorithm is an HKDF-Expand algorithm. + * + * HKDF-Expand is a family of key derivation algorithms that are based + * on a hash function and the HMAC construction. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \c alg is an HKDF-Expand algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \c alg is not a supported + * key derivation algorithm identifier. + */ +#define PSA_ALG_IS_HKDF_EXPAND(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_HKDF_EXPAND_BASE) + +/** Whether the specified algorithm is an HKDF or HKDF-Extract or + * HKDF-Expand algorithm. + * + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \c alg is any HKDF type algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \c alg is not a supported + * key derivation algorithm identifier. + */ +#define PSA_ALG_IS_ANY_HKDF(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_HKDF_BASE || \ + ((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_HKDF_EXTRACT_BASE || \ + ((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_HKDF_EXPAND_BASE) + +#define PSA_ALG_TLS12_PRF_BASE ((psa_algorithm_t) 0x08000200) +/** Macro to build a TLS-1.2 PRF algorithm. + * + * TLS 1.2 uses a custom pseudorandom function (PRF) for key schedule, + * specified in Section 5 of RFC 5246. It is based on HMAC and can be + * used with either SHA-256 or SHA-384. + * + * This key derivation algorithm uses the following inputs, which must be + * passed in the order given here: + * - #PSA_KEY_DERIVATION_INPUT_SEED is the seed. + * - #PSA_KEY_DERIVATION_INPUT_SECRET is the secret key. + * - #PSA_KEY_DERIVATION_INPUT_LABEL is the label. + * + * For the application to TLS-1.2 key expansion, the seed is the + * concatenation of ServerHello.Random + ClientHello.Random, + * and the label is "key expansion". + * + * For example, `PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256)` represents the + * TLS 1.2 PRF using HMAC-SHA-256. + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * + * \return The corresponding TLS-1.2 PRF algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_TLS12_PRF(hash_alg) \ + (PSA_ALG_TLS12_PRF_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) + +/** Whether the specified algorithm is a TLS-1.2 PRF algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \c alg is a TLS-1.2 PRF algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \c alg is not a supported + * key derivation algorithm identifier. + */ +#define PSA_ALG_IS_TLS12_PRF(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_TLS12_PRF_BASE) +#define PSA_ALG_TLS12_PRF_GET_HASH(hkdf_alg) \ + (PSA_ALG_CATEGORY_HASH | ((hkdf_alg) & PSA_ALG_HASH_MASK)) + +#define PSA_ALG_TLS12_PSK_TO_MS_BASE ((psa_algorithm_t) 0x08000300) +/** Macro to build a TLS-1.2 PSK-to-MasterSecret algorithm. + * + * In a pure-PSK handshake in TLS 1.2, the master secret is derived + * from the PreSharedKey (PSK) through the application of padding + * (RFC 4279, Section 2) and the TLS-1.2 PRF (RFC 5246, Section 5). + * The latter is based on HMAC and can be used with either SHA-256 + * or SHA-384. + * + * This key derivation algorithm uses the following inputs, which must be + * passed in the order given here: + * - #PSA_KEY_DERIVATION_INPUT_SEED is the seed. + * - #PSA_KEY_DERIVATION_INPUT_OTHER_SECRET is the other secret for the + * computation of the premaster secret. This input is optional; + * if omitted, it defaults to a string of null bytes with the same length + * as the secret (PSK) input. + * - #PSA_KEY_DERIVATION_INPUT_SECRET is the secret key. + * - #PSA_KEY_DERIVATION_INPUT_LABEL is the label. + * + * For the application to TLS-1.2, the seed (which is + * forwarded to the TLS-1.2 PRF) is the concatenation of the + * ClientHello.Random + ServerHello.Random, + * the label is "master secret" or "extended master secret" and + * the other secret depends on the key exchange specified in the cipher suite: + * - for a plain PSK cipher suite (RFC 4279, Section 2), omit + * PSA_KEY_DERIVATION_INPUT_OTHER_SECRET + * - for a DHE-PSK (RFC 4279, Section 3) or ECDHE-PSK cipher suite + * (RFC 5489, Section 2), the other secret should be the output of the + * PSA_ALG_FFDH or PSA_ALG_ECDH key agreement performed with the peer. + * The recommended way to pass this input is to use a key derivation + * algorithm constructed as + * PSA_ALG_KEY_AGREEMENT(ka_alg, PSA_ALG_TLS12_PSK_TO_MS(hash_alg)) + * and to call psa_key_derivation_key_agreement(). Alternatively, + * this input may be an output of `psa_raw_key_agreement()` passed with + * psa_key_derivation_input_bytes(), or an equivalent input passed with + * psa_key_derivation_input_bytes() or psa_key_derivation_input_key(). + * - for a RSA-PSK cipher suite (RFC 4279, Section 4), the other secret + * should be the 48-byte client challenge (the PreMasterSecret of + * (RFC 5246, Section 7.4.7.1)) concatenation of the TLS version and + * a 46-byte random string chosen by the client. On the server, this is + * typically an output of psa_asymmetric_decrypt() using + * PSA_ALG_RSA_PKCS1V15_CRYPT, passed to the key derivation operation + * with `psa_key_derivation_input_bytes()`. + * + * For example, `PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_256)` represents the + * TLS-1.2 PSK to MasterSecret derivation PRF using HMAC-SHA-256. + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * + * \return The corresponding TLS-1.2 PSK to MS algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_TLS12_PSK_TO_MS(hash_alg) \ + (PSA_ALG_TLS12_PSK_TO_MS_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) + +/** Whether the specified algorithm is a TLS-1.2 PSK to MS algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \c alg is a TLS-1.2 PSK to MS algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \c alg is not a supported + * key derivation algorithm identifier. + */ +#define PSA_ALG_IS_TLS12_PSK_TO_MS(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_TLS12_PSK_TO_MS_BASE) +#define PSA_ALG_TLS12_PSK_TO_MS_GET_HASH(hkdf_alg) \ + (PSA_ALG_CATEGORY_HASH | ((hkdf_alg) & PSA_ALG_HASH_MASK)) + +/* The TLS 1.2 ECJPAKE-to-PMS KDF. It takes the shared secret K (an EC point + * in case of EC J-PAKE) and calculates SHA256(K.X) that the rest of TLS 1.2 + * will use to derive the session secret, as defined by step 2 of + * https://datatracker.ietf.org/doc/html/draft-cragie-tls-ecjpake-01#section-8.7. + * Uses PSA_ALG_SHA_256. + * This function takes a single input: + * #PSA_KEY_DERIVATION_INPUT_SECRET is the shared secret K from EC J-PAKE. + * The only supported curve is secp256r1 (the 256-bit curve in + * #PSA_ECC_FAMILY_SECP_R1), so the input must be exactly 65 bytes. + * The output has to be read as a single chunk of 32 bytes, defined as + * PSA_TLS12_ECJPAKE_TO_PMS_DATA_SIZE. + */ +#define PSA_ALG_TLS12_ECJPAKE_TO_PMS ((psa_algorithm_t) 0x08000609) + +/* This flag indicates whether the key derivation algorithm is suitable for + * use on low-entropy secrets such as password - these algorithms are also + * known as key stretching or password hashing schemes. These are also the + * algorithms that accepts inputs of type #PSA_KEY_DERIVATION_INPUT_PASSWORD. + * + * Those algorithms cannot be combined with a key agreement algorithm. + */ +#define PSA_ALG_KEY_DERIVATION_STRETCHING_FLAG ((psa_algorithm_t) 0x00800000) + +#define PSA_ALG_PBKDF2_HMAC_BASE ((psa_algorithm_t) 0x08800100) +/** Macro to build a PBKDF2-HMAC password hashing / key stretching algorithm. + * + * PBKDF2 is defined by PKCS#5, republished as RFC 8018 (section 5.2). + * This macro specifies the PBKDF2 algorithm constructed using a PRF based on + * HMAC with the specified hash. + * For example, `PSA_ALG_PBKDF2_HMAC(PSA_ALG_SHA_256)` specifies PBKDF2 + * using the PRF HMAC-SHA-256. + * + * This key derivation algorithm uses the following inputs, which must be + * provided in the following order: + * - #PSA_KEY_DERIVATION_INPUT_COST is the iteration count. + * This input step must be used exactly once. + * - #PSA_KEY_DERIVATION_INPUT_SALT is the salt. + * This input step must be used one or more times; if used several times, the + * inputs will be concatenated. This can be used to build the final salt + * from multiple sources, both public and secret (also known as pepper). + * - #PSA_KEY_DERIVATION_INPUT_PASSWORD is the password to be hashed. + * This input step must be used exactly once. + * + * \param hash_alg A hash algorithm (\c PSA_ALG_XXX value such that + * #PSA_ALG_IS_HASH(\p hash_alg) is true). + * + * \return The corresponding PBKDF2-HMAC-XXX algorithm. + * \return Unspecified if \p hash_alg is not a supported + * hash algorithm. + */ +#define PSA_ALG_PBKDF2_HMAC(hash_alg) \ + (PSA_ALG_PBKDF2_HMAC_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) + +/** Whether the specified algorithm is a PBKDF2-HMAC algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \c alg is a PBKDF2-HMAC algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \c alg is not a supported + * key derivation algorithm identifier. + */ +#define PSA_ALG_IS_PBKDF2_HMAC(alg) \ + (((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_PBKDF2_HMAC_BASE) +#define PSA_ALG_PBKDF2_HMAC_GET_HASH(pbkdf2_alg) \ + (PSA_ALG_CATEGORY_HASH | ((pbkdf2_alg) & PSA_ALG_HASH_MASK)) +/** The PBKDF2-AES-CMAC-PRF-128 password hashing / key stretching algorithm. + * + * PBKDF2 is defined by PKCS#5, republished as RFC 8018 (section 5.2). + * This macro specifies the PBKDF2 algorithm constructed using the + * AES-CMAC-PRF-128 PRF specified by RFC 4615. + * + * This key derivation algorithm uses the same inputs as + * #PSA_ALG_PBKDF2_HMAC() with the same constraints. + */ +#define PSA_ALG_PBKDF2_AES_CMAC_PRF_128 ((psa_algorithm_t) 0x08800200) + +#define PSA_ALG_IS_PBKDF2(kdf_alg) \ + (PSA_ALG_IS_PBKDF2_HMAC(kdf_alg) || \ + ((kdf_alg) == PSA_ALG_PBKDF2_AES_CMAC_PRF_128)) + +#define PSA_ALG_KEY_DERIVATION_MASK ((psa_algorithm_t) 0xfe00ffff) +#define PSA_ALG_KEY_AGREEMENT_MASK ((psa_algorithm_t) 0xffff0000) + +/** Macro to build a combined algorithm that chains a key agreement with + * a key derivation. + * + * \param ka_alg A key agreement algorithm (\c PSA_ALG_XXX value such + * that #PSA_ALG_IS_KEY_AGREEMENT(\p ka_alg) is true). + * \param kdf_alg A key derivation algorithm (\c PSA_ALG_XXX value such + * that #PSA_ALG_IS_KEY_DERIVATION(\p kdf_alg) is true). + * + * \return The corresponding key agreement and derivation + * algorithm. + * \return Unspecified if \p ka_alg is not a supported + * key agreement algorithm or \p kdf_alg is not a + * supported key derivation algorithm. + */ +#define PSA_ALG_KEY_AGREEMENT(ka_alg, kdf_alg) \ + ((ka_alg) | (kdf_alg)) + +#define PSA_ALG_KEY_AGREEMENT_GET_KDF(alg) \ + (((alg) & PSA_ALG_KEY_DERIVATION_MASK) | PSA_ALG_CATEGORY_KEY_DERIVATION) + +#define PSA_ALG_KEY_AGREEMENT_GET_BASE(alg) \ + (((alg) & PSA_ALG_KEY_AGREEMENT_MASK) | PSA_ALG_CATEGORY_KEY_AGREEMENT) + +/** Whether the specified algorithm is a raw key agreement algorithm. + * + * A raw key agreement algorithm is one that does not specify + * a key derivation function. + * Usually, raw key agreement algorithms are constructed directly with + * a \c PSA_ALG_xxx macro while non-raw key agreement algorithms are + * constructed with #PSA_ALG_KEY_AGREEMENT(). + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \p alg is a raw key agreement algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \p alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_RAW_KEY_AGREEMENT(alg) \ + (PSA_ALG_IS_KEY_AGREEMENT(alg) && \ + PSA_ALG_KEY_AGREEMENT_GET_KDF(alg) == PSA_ALG_CATEGORY_KEY_DERIVATION) + +#define PSA_ALG_IS_KEY_DERIVATION_OR_AGREEMENT(alg) \ + ((PSA_ALG_IS_KEY_DERIVATION(alg) || PSA_ALG_IS_KEY_AGREEMENT(alg))) + +/** The finite-field Diffie-Hellman (DH) key agreement algorithm. + * + * The shared secret produced by key agreement is + * `g^{ab}` in big-endian format. + * It is `ceiling(m / 8)` bytes long where `m` is the size of the prime `p` + * in bits. + */ +#define PSA_ALG_FFDH ((psa_algorithm_t) 0x09010000) + +/** Whether the specified algorithm is a finite field Diffie-Hellman algorithm. + * + * This includes the raw finite field Diffie-Hellman algorithm as well as + * finite-field Diffie-Hellman followed by any supporter key derivation + * algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \c alg is a finite field Diffie-Hellman algorithm, 0 otherwise. + * This macro may return either 0 or 1 if \c alg is not a supported + * key agreement algorithm identifier. + */ +#define PSA_ALG_IS_FFDH(alg) \ + (PSA_ALG_KEY_AGREEMENT_GET_BASE(alg) == PSA_ALG_FFDH) + +/** The elliptic curve Diffie-Hellman (ECDH) key agreement algorithm. + * + * The shared secret produced by key agreement is the x-coordinate of + * the shared secret point. It is always `ceiling(m / 8)` bytes long where + * `m` is the bit size associated with the curve, i.e. the bit size of the + * order of the curve's coordinate field. When `m` is not a multiple of 8, + * the byte containing the most significant bit of the shared secret + * is padded with zero bits. The byte order is either little-endian + * or big-endian depending on the curve type. + * + * - For Montgomery curves (curve types `PSA_ECC_FAMILY_CURVEXXX`), + * the shared secret is the x-coordinate of `d_A Q_B = d_B Q_A` + * in little-endian byte order. + * The bit size is 448 for Curve448 and 255 for Curve25519. + * - For Weierstrass curves over prime fields (curve types + * `PSA_ECC_FAMILY_SECPXXX` and `PSA_ECC_FAMILY_BRAINPOOL_PXXX`), + * the shared secret is the x-coordinate of `d_A Q_B = d_B Q_A` + * in big-endian byte order. + * The bit size is `m = ceiling(log_2(p))` for the field `F_p`. + * - For Weierstrass curves over binary fields (curve types + * `PSA_ECC_FAMILY_SECTXXX`), + * the shared secret is the x-coordinate of `d_A Q_B = d_B Q_A` + * in big-endian byte order. + * The bit size is `m` for the field `F_{2^m}`. + */ +#define PSA_ALG_ECDH ((psa_algorithm_t) 0x09020000) + +/** Whether the specified algorithm is an elliptic curve Diffie-Hellman + * algorithm. + * + * This includes the raw elliptic curve Diffie-Hellman algorithm as well as + * elliptic curve Diffie-Hellman followed by any supporter key derivation + * algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \c alg is an elliptic curve Diffie-Hellman algorithm, + * 0 otherwise. + * This macro may return either 0 or 1 if \c alg is not a supported + * key agreement algorithm identifier. + */ +#define PSA_ALG_IS_ECDH(alg) \ + (PSA_ALG_KEY_AGREEMENT_GET_BASE(alg) == PSA_ALG_ECDH) + +/** Whether the specified algorithm encoding is a wildcard. + * + * Wildcard values may only be used to set the usage algorithm field in + * a policy, not to perform an operation. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return 1 if \c alg is a wildcard algorithm encoding. + * \return 0 if \c alg is a non-wildcard algorithm encoding (suitable for + * an operation). + * \return This macro may return either 0 or 1 if \c alg is not a supported + * algorithm identifier. + */ +#define PSA_ALG_IS_WILDCARD(alg) \ + (PSA_ALG_IS_HASH_AND_SIGN(alg) ? \ + PSA_ALG_SIGN_GET_HASH(alg) == PSA_ALG_ANY_HASH : \ + PSA_ALG_IS_MAC(alg) ? \ + (alg & PSA_ALG_MAC_AT_LEAST_THIS_LENGTH_FLAG) != 0 : \ + PSA_ALG_IS_AEAD(alg) ? \ + (alg & PSA_ALG_AEAD_AT_LEAST_THIS_LENGTH_FLAG) != 0 : \ + (alg) == PSA_ALG_ANY_HASH) + +/** Get the hash used by a composite algorithm. + * + * \param alg An algorithm identifier (value of type #psa_algorithm_t). + * + * \return The underlying hash algorithm if alg is a composite algorithm that + * uses a hash algorithm. + * + * \return \c 0 if alg is not a composite algorithm that uses a hash. + */ +#define PSA_ALG_GET_HASH(alg) \ + (((alg) & 0x000000ff) == 0 ? ((psa_algorithm_t) 0) : 0x02000000 | ((alg) & 0x000000ff)) + +/**@}*/ + +/** \defgroup key_lifetimes Key lifetimes + * @{ + */ + +/* Note that location and persistence level values are embedded in the + * persistent key store, as part of key metadata. As a consequence, they + * must not be changed (unless the storage format version changes). + */ + +/** The default lifetime for volatile keys. + * + * A volatile key only exists as long as the identifier to it is not destroyed. + * The key material is guaranteed to be erased on a power reset. + * + * A key with this lifetime is typically stored in the RAM area of the + * PSA Crypto subsystem. However this is an implementation choice. + * If an implementation stores data about the key in a non-volatile memory, + * it must release all the resources associated with the key and erase the + * key material if the calling application terminates. + */ +#define PSA_KEY_LIFETIME_VOLATILE ((psa_key_lifetime_t) 0x00000000) + +/** The default lifetime for persistent keys. + * + * A persistent key remains in storage until it is explicitly destroyed or + * until the corresponding storage area is wiped. This specification does + * not define any mechanism to wipe a storage area, but integrations may + * provide their own mechanism (for example to perform a factory reset, + * to prepare for device refurbishment, or to uninstall an application). + * + * This lifetime value is the default storage area for the calling + * application. Integrations of Mbed TLS may support other persistent lifetimes. + * See ::psa_key_lifetime_t for more information. + */ +#define PSA_KEY_LIFETIME_PERSISTENT ((psa_key_lifetime_t) 0x00000001) + +/** The persistence level of volatile keys. + * + * See ::psa_key_persistence_t for more information. + */ +#define PSA_KEY_PERSISTENCE_VOLATILE ((psa_key_persistence_t) 0x00) + +/** The default persistence level for persistent keys. + * + * See ::psa_key_persistence_t for more information. + */ +#define PSA_KEY_PERSISTENCE_DEFAULT ((psa_key_persistence_t) 0x01) + +/** A persistence level indicating that a key is never destroyed. + * + * See ::psa_key_persistence_t for more information. + */ +#define PSA_KEY_PERSISTENCE_READ_ONLY ((psa_key_persistence_t) 0xff) + +#define PSA_KEY_LIFETIME_GET_PERSISTENCE(lifetime) \ + ((psa_key_persistence_t) ((lifetime) & 0x000000ff)) + +#define PSA_KEY_LIFETIME_GET_LOCATION(lifetime) \ + ((psa_key_location_t) ((lifetime) >> 8)) + +/** Whether a key lifetime indicates that the key is volatile. + * + * A volatile key is automatically destroyed by the implementation when + * the application instance terminates. In particular, a volatile key + * is automatically destroyed on a power reset of the device. + * + * A key that is not volatile is persistent. Persistent keys are + * preserved until the application explicitly destroys them or until an + * implementation-specific device management event occurs (for example, + * a factory reset). + * + * \param lifetime The lifetime value to query (value of type + * ::psa_key_lifetime_t). + * + * \return \c 1 if the key is volatile, otherwise \c 0. + */ +#define PSA_KEY_LIFETIME_IS_VOLATILE(lifetime) \ + (PSA_KEY_LIFETIME_GET_PERSISTENCE(lifetime) == \ + PSA_KEY_PERSISTENCE_VOLATILE) + +/** Whether a key lifetime indicates that the key is read-only. + * + * Read-only keys cannot be created or destroyed through the PSA Crypto API. + * They must be created through platform-specific means that bypass the API. + * + * Some platforms may offer ways to destroy read-only keys. For example, + * consider a platform with multiple levels of privilege, where a + * low-privilege application can use a key but is not allowed to destroy + * it, and the platform exposes the key to the application with a read-only + * lifetime. High-privilege code can destroy the key even though the + * application sees the key as read-only. + * + * \param lifetime The lifetime value to query (value of type + * ::psa_key_lifetime_t). + * + * \return \c 1 if the key is read-only, otherwise \c 0. + */ +#define PSA_KEY_LIFETIME_IS_READ_ONLY(lifetime) \ + (PSA_KEY_LIFETIME_GET_PERSISTENCE(lifetime) == \ + PSA_KEY_PERSISTENCE_READ_ONLY) + +/** Construct a lifetime from a persistence level and a location. + * + * \param persistence The persistence level + * (value of type ::psa_key_persistence_t). + * \param location The location indicator + * (value of type ::psa_key_location_t). + * + * \return The constructed lifetime value. + */ +#define PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(persistence, location) \ + ((location) << 8 | (persistence)) + +/** The local storage area for persistent keys. + * + * This storage area is available on all systems that can store persistent + * keys without delegating the storage to a third-party cryptoprocessor. + * + * See ::psa_key_location_t for more information. + */ +#define PSA_KEY_LOCATION_LOCAL_STORAGE ((psa_key_location_t) 0x000000) + +#define PSA_KEY_LOCATION_VENDOR_FLAG ((psa_key_location_t) 0x800000) + +/* Note that key identifier values are embedded in the + * persistent key store, as part of key metadata. As a consequence, they + * must not be changed (unless the storage format version changes). + */ + +/** The null key identifier. + */ +/* *INDENT-OFF* (https://github.com/ARM-software/psa-arch-tests/issues/337) */ +#define PSA_KEY_ID_NULL ((psa_key_id_t)0) +/* *INDENT-ON* */ +/** The minimum value for a key identifier chosen by the application. + */ +#define PSA_KEY_ID_USER_MIN ((psa_key_id_t) 0x00000001) +/** The maximum value for a key identifier chosen by the application. + */ +#define PSA_KEY_ID_USER_MAX ((psa_key_id_t) 0x3fffffff) +/** The minimum value for a key identifier chosen by the implementation. + */ +#define PSA_KEY_ID_VENDOR_MIN ((psa_key_id_t) 0x40000000) +/** The maximum value for a key identifier chosen by the implementation. + */ +#define PSA_KEY_ID_VENDOR_MAX ((psa_key_id_t) 0x7fffffff) + + +#if !defined(MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER) + +#define MBEDTLS_SVC_KEY_ID_INIT ((psa_key_id_t) 0) +#define MBEDTLS_SVC_KEY_ID_GET_KEY_ID(id) (id) +#define MBEDTLS_SVC_KEY_ID_GET_OWNER_ID(id) (0) + +/** Utility to initialize a key identifier at runtime. + * + * \param unused Unused parameter. + * \param key_id Identifier of the key. + */ +static inline mbedtls_svc_key_id_t mbedtls_svc_key_id_make( + unsigned int unused, psa_key_id_t key_id) +{ + (void) unused; + + return key_id; +} + +/** Compare two key identifiers. + * + * \param id1 First key identifier. + * \param id2 Second key identifier. + * + * \return Non-zero if the two key identifier are equal, zero otherwise. + */ +static inline int mbedtls_svc_key_id_equal(mbedtls_svc_key_id_t id1, + mbedtls_svc_key_id_t id2) +{ + return id1 == id2; +} + +/** Check whether a key identifier is null. + * + * \param key Key identifier. + * + * \return Non-zero if the key identifier is null, zero otherwise. + */ +static inline int mbedtls_svc_key_id_is_null(mbedtls_svc_key_id_t key) +{ + return key == 0; +} + +#else /* MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER */ + +#define MBEDTLS_SVC_KEY_ID_INIT ((mbedtls_svc_key_id_t){ 0, 0 }) +#define MBEDTLS_SVC_KEY_ID_GET_KEY_ID(id) ((id).MBEDTLS_PRIVATE(key_id)) +#define MBEDTLS_SVC_KEY_ID_GET_OWNER_ID(id) ((id).MBEDTLS_PRIVATE(owner)) + +/** Utility to initialize a key identifier at runtime. + * + * \param owner_id Identifier of the key owner. + * \param key_id Identifier of the key. + */ +static inline mbedtls_svc_key_id_t mbedtls_svc_key_id_make( + mbedtls_key_owner_id_t owner_id, psa_key_id_t key_id) +{ + return (mbedtls_svc_key_id_t){ .MBEDTLS_PRIVATE(key_id) = key_id, + .MBEDTLS_PRIVATE(owner) = owner_id }; +} + +/** Compare two key identifiers. + * + * \param id1 First key identifier. + * \param id2 Second key identifier. + * + * \return Non-zero if the two key identifier are equal, zero otherwise. + */ +static inline int mbedtls_svc_key_id_equal(mbedtls_svc_key_id_t id1, + mbedtls_svc_key_id_t id2) +{ + return (id1.MBEDTLS_PRIVATE(key_id) == id2.MBEDTLS_PRIVATE(key_id)) && + mbedtls_key_owner_id_equal(id1.MBEDTLS_PRIVATE(owner), id2.MBEDTLS_PRIVATE(owner)); +} + +/** Check whether a key identifier is null. + * + * \param key Key identifier. + * + * \return Non-zero if the key identifier is null, zero otherwise. + */ +static inline int mbedtls_svc_key_id_is_null(mbedtls_svc_key_id_t key) +{ + return key.MBEDTLS_PRIVATE(key_id) == 0; +} + +#endif /* !MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER */ + +/**@}*/ + +/** \defgroup policy Key policies + * @{ + */ + +/* Note that key usage flags are embedded in the + * persistent key store, as part of key metadata. As a consequence, they + * must not be changed (unless the storage format version changes). + */ + +/** Whether the key may be exported. + * + * A public key or the public part of a key pair may always be exported + * regardless of the value of this permission flag. + * + * If a key does not have export permission, implementations shall not + * allow the key to be exported in plain form from the cryptoprocessor, + * whether through psa_export_key() or through a proprietary interface. + * The key may however be exportable in a wrapped form, i.e. in a form + * where it is encrypted by another key. + */ +#define PSA_KEY_USAGE_EXPORT ((psa_key_usage_t) 0x00000001) + +/** Whether the key may be copied. + * + * This flag allows the use of psa_copy_key() to make a copy of the key + * with the same policy or a more restrictive policy. + * + * For lifetimes for which the key is located in a secure element which + * enforce the non-exportability of keys, copying a key outside the secure + * element also requires the usage flag #PSA_KEY_USAGE_EXPORT. + * Copying the key inside the secure element is permitted with just + * #PSA_KEY_USAGE_COPY if the secure element supports it. + * For keys with the lifetime #PSA_KEY_LIFETIME_VOLATILE or + * #PSA_KEY_LIFETIME_PERSISTENT, the usage flag #PSA_KEY_USAGE_COPY + * is sufficient to permit the copy. + */ +#define PSA_KEY_USAGE_COPY ((psa_key_usage_t) 0x00000002) + +/** Whether the key may be used to encrypt a message. + * + * This flag allows the key to be used for a symmetric encryption operation, + * for an AEAD encryption-and-authentication operation, + * or for an asymmetric encryption operation, + * if otherwise permitted by the key's type and policy. + * + * For a key pair, this concerns the public key. + */ +#define PSA_KEY_USAGE_ENCRYPT ((psa_key_usage_t) 0x00000100) + +/** Whether the key may be used to decrypt a message. + * + * This flag allows the key to be used for a symmetric decryption operation, + * for an AEAD decryption-and-verification operation, + * or for an asymmetric decryption operation, + * if otherwise permitted by the key's type and policy. + * + * For a key pair, this concerns the private key. + */ +#define PSA_KEY_USAGE_DECRYPT ((psa_key_usage_t) 0x00000200) + +/** Whether the key may be used to sign a message. + * + * This flag allows the key to be used for a MAC calculation operation or for + * an asymmetric message signature operation, if otherwise permitted by the + * key’s type and policy. + * + * For a key pair, this concerns the private key. + */ +#define PSA_KEY_USAGE_SIGN_MESSAGE ((psa_key_usage_t) 0x00000400) + +/** Whether the key may be used to verify a message. + * + * This flag allows the key to be used for a MAC verification operation or for + * an asymmetric message signature verification operation, if otherwise + * permitted by the key’s type and policy. + * + * For a key pair, this concerns the public key. + */ +#define PSA_KEY_USAGE_VERIFY_MESSAGE ((psa_key_usage_t) 0x00000800) + +/** Whether the key may be used to sign a message. + * + * This flag allows the key to be used for a MAC calculation operation + * or for an asymmetric signature operation, + * if otherwise permitted by the key's type and policy. + * + * For a key pair, this concerns the private key. + */ +#define PSA_KEY_USAGE_SIGN_HASH ((psa_key_usage_t) 0x00001000) + +/** Whether the key may be used to verify a message signature. + * + * This flag allows the key to be used for a MAC verification operation + * or for an asymmetric signature verification operation, + * if otherwise permitted by the key's type and policy. + * + * For a key pair, this concerns the public key. + */ +#define PSA_KEY_USAGE_VERIFY_HASH ((psa_key_usage_t) 0x00002000) + +/** Whether the key may be used to derive other keys or produce a password + * hash. + * + * This flag allows the key to be used for a key derivation operation or for + * a key agreement operation, if otherwise permitted by the key's type and + * policy. + * + * If this flag is present on all keys used in calls to + * psa_key_derivation_input_key() for a key derivation operation, then it + * permits calling psa_key_derivation_output_bytes() or + * psa_key_derivation_output_key() at the end of the operation. + */ +#define PSA_KEY_USAGE_DERIVE ((psa_key_usage_t) 0x00004000) + +/** Whether the key may be used to verify the result of a key derivation, + * including password hashing. + * + * This flag allows the key to be used: + * + * This flag allows the key to be used in a key derivation operation, if + * otherwise permitted by the key's type and policy. + * + * If this flag is present on all keys used in calls to + * psa_key_derivation_input_key() for a key derivation operation, then it + * permits calling psa_key_derivation_verify_bytes() or + * psa_key_derivation_verify_key() at the end of the operation. + */ +#define PSA_KEY_USAGE_VERIFY_DERIVATION ((psa_key_usage_t) 0x00008000) + +/**@}*/ + +/** \defgroup derivation Key derivation + * @{ + */ + +/* Key input steps are not embedded in the persistent storage, so you can + * change them if needed: it's only an ABI change. */ + +/** A secret input for key derivation. + * + * This should be a key of type #PSA_KEY_TYPE_DERIVE + * (passed to psa_key_derivation_input_key()) + * or the shared secret resulting from a key agreement + * (obtained via psa_key_derivation_key_agreement()). + * + * The secret can also be a direct input (passed to + * key_derivation_input_bytes()). In this case, the derivation operation + * may not be used to derive keys: the operation will only allow + * psa_key_derivation_output_bytes(), + * psa_key_derivation_verify_bytes(), or + * psa_key_derivation_verify_key(), but not + * psa_key_derivation_output_key(). + */ +#define PSA_KEY_DERIVATION_INPUT_SECRET ((psa_key_derivation_step_t) 0x0101) + +/** A low-entropy secret input for password hashing / key stretching. + * + * This is usually a key of type #PSA_KEY_TYPE_PASSWORD (passed to + * psa_key_derivation_input_key()) or a direct input (passed to + * psa_key_derivation_input_bytes()) that is a password or passphrase. It can + * also be high-entropy secret such as a key of type #PSA_KEY_TYPE_DERIVE or + * the shared secret resulting from a key agreement. + * + * The secret can also be a direct input (passed to + * key_derivation_input_bytes()). In this case, the derivation operation + * may not be used to derive keys: the operation will only allow + * psa_key_derivation_output_bytes(), + * psa_key_derivation_verify_bytes(), or + * psa_key_derivation_verify_key(), but not + * psa_key_derivation_output_key(). + */ +#define PSA_KEY_DERIVATION_INPUT_PASSWORD ((psa_key_derivation_step_t) 0x0102) + +/** A high-entropy additional secret input for key derivation. + * + * This is typically the shared secret resulting from a key agreement obtained + * via `psa_key_derivation_key_agreement()`. It may alternatively be a key of + * type `PSA_KEY_TYPE_DERIVE` passed to `psa_key_derivation_input_key()`, or + * a direct input passed to `psa_key_derivation_input_bytes()`. + */ +#define PSA_KEY_DERIVATION_INPUT_OTHER_SECRET \ + ((psa_key_derivation_step_t) 0x0103) + +/** A label for key derivation. + * + * This should be a direct input. + * It can also be a key of type #PSA_KEY_TYPE_RAW_DATA. + */ +#define PSA_KEY_DERIVATION_INPUT_LABEL ((psa_key_derivation_step_t) 0x0201) + +/** A salt for key derivation. + * + * This should be a direct input. + * It can also be a key of type #PSA_KEY_TYPE_RAW_DATA or + * #PSA_KEY_TYPE_PEPPER. + */ +#define PSA_KEY_DERIVATION_INPUT_SALT ((psa_key_derivation_step_t) 0x0202) + +/** An information string for key derivation. + * + * This should be a direct input. + * It can also be a key of type #PSA_KEY_TYPE_RAW_DATA. + */ +#define PSA_KEY_DERIVATION_INPUT_INFO ((psa_key_derivation_step_t) 0x0203) + +/** A seed for key derivation. + * + * This should be a direct input. + * It can also be a key of type #PSA_KEY_TYPE_RAW_DATA. + */ +#define PSA_KEY_DERIVATION_INPUT_SEED ((psa_key_derivation_step_t) 0x0204) + +/** A cost parameter for password hashing / key stretching. + * + * This must be a direct input, passed to psa_key_derivation_input_integer(). + */ +#define PSA_KEY_DERIVATION_INPUT_COST ((psa_key_derivation_step_t) 0x0205) + +/**@}*/ + +/** \defgroup helper_macros Helper macros + * @{ + */ + +/* Helper macros */ + +/** Check if two AEAD algorithm identifiers refer to the same AEAD algorithm + * regardless of the tag length they encode. + * + * \param aead_alg_1 An AEAD algorithm identifier. + * \param aead_alg_2 An AEAD algorithm identifier. + * + * \return 1 if both identifiers refer to the same AEAD algorithm, + * 0 otherwise. + * Unspecified if neither \p aead_alg_1 nor \p aead_alg_2 are + * a supported AEAD algorithm. + */ +#define MBEDTLS_PSA_ALG_AEAD_EQUAL(aead_alg_1, aead_alg_2) \ + (!(((aead_alg_1) ^ (aead_alg_2)) & \ + ~(PSA_ALG_AEAD_TAG_LENGTH_MASK | PSA_ALG_AEAD_AT_LEAST_THIS_LENGTH_FLAG))) + +/**@}*/ + +/**@}*/ + +/** \defgroup interruptible Interruptible operations + * @{ + */ + +/** Maximum value for use with \c psa_interruptible_set_max_ops() to determine + * the maximum number of ops allowed to be executed by an interruptible + * function in a single call. + */ +#define PSA_INTERRUPTIBLE_MAX_OPS_UNLIMITED UINT32_MAX + +/**@}*/ + +#endif /* PSA_CRYPTO_VALUES_H */ diff --git a/include/secp256k1.h b/include/secp256k1.h new file mode 100644 index 0000000..f4053f2 --- /dev/null +++ b/include/secp256k1.h @@ -0,0 +1,909 @@ +#ifndef SECP256K1_H +#define SECP256K1_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include <stddef.h> + +/** Unless explicitly stated all pointer arguments must not be NULL. + * + * The following rules specify the order of arguments in API calls: + * + * 1. Context pointers go first, followed by output arguments, combined + * output/input arguments, and finally input-only arguments. + * 2. Array lengths always immediately follow the argument whose length + * they describe, even if this violates rule 1. + * 3. Within the OUT/OUTIN/IN groups, pointers to data that is typically generated + * later go first. This means: signatures, public nonces, secret nonces, + * messages, public keys, secret keys, tweaks. + * 4. Arguments that are not data pointers go last, from more complex to less + * complex: function pointers, algorithm names, messages, void pointers, + * counts, flags, booleans. + * 5. Opaque data pointers follow the function pointer they are to be passed to. + */ + +/** Opaque data structure that holds context information + * + * The primary purpose of context objects is to store randomization data for + * enhanced protection against side-channel leakage. This protection is only + * effective if the context is randomized after its creation. See + * secp256k1_context_create for creation of contexts and + * secp256k1_context_randomize for randomization. + * + * A secondary purpose of context objects is to store pointers to callback + * functions that the library will call when certain error states arise. See + * secp256k1_context_set_error_callback as well as + * secp256k1_context_set_illegal_callback for details. Future library versions + * may use context objects for additional purposes. + * + * A constructed context can safely be used from multiple threads + * simultaneously, but API calls that take a non-const pointer to a context + * need exclusive access to it. In particular this is the case for + * secp256k1_context_destroy, secp256k1_context_preallocated_destroy, + * and secp256k1_context_randomize. + * + * Regarding randomization, either do it once at creation time (in which case + * you do not need any locking for the other calls), or use a read-write lock. + */ +typedef struct secp256k1_context_struct secp256k1_context; + +/** Opaque data structure that holds rewritable "scratch space" + * + * The purpose of this structure is to replace dynamic memory allocations, + * because we target architectures where this may not be available. It is + * essentially a resizable (within specified parameters) block of bytes, + * which is initially created either by memory allocation or TODO as a pointer + * into some fixed rewritable space. + * + * Unlike the context object, this cannot safely be shared between threads + * without additional synchronization logic. + */ +typedef struct secp256k1_scratch_space_struct secp256k1_scratch_space; + +/** Opaque data structure that holds a parsed and valid public key. + * + * The exact representation of data inside is implementation defined and not + * guaranteed to be portable between different platforms or versions. It is + * however guaranteed to be 64 bytes in size, and can be safely copied/moved. + * If you need to convert to a format suitable for storage or transmission, + * use secp256k1_ec_pubkey_serialize and secp256k1_ec_pubkey_parse. To + * compare keys, use secp256k1_ec_pubkey_cmp. + */ +typedef struct { + unsigned char data[64]; +} secp256k1_pubkey; + +/** Opaque data structured that holds a parsed ECDSA signature. + * + * The exact representation of data inside is implementation defined and not + * guaranteed to be portable between different platforms or versions. It is + * however guaranteed to be 64 bytes in size, and can be safely copied/moved. + * If you need to convert to a format suitable for storage, transmission, or + * comparison, use the secp256k1_ecdsa_signature_serialize_* and + * secp256k1_ecdsa_signature_parse_* functions. + */ +typedef struct { + unsigned char data[64]; +} secp256k1_ecdsa_signature; + +/** A pointer to a function to deterministically generate a nonce. + * + * Returns: 1 if a nonce was successfully generated. 0 will cause signing to fail. + * Out: nonce32: pointer to a 32-byte array to be filled by the function. + * In: msg32: the 32-byte message hash being verified (will not be NULL) + * key32: pointer to a 32-byte secret key (will not be NULL) + * algo16: pointer to a 16-byte array describing the signature + * algorithm (will be NULL for ECDSA for compatibility). + * data: Arbitrary data pointer that is passed through. + * attempt: how many iterations we have tried to find a nonce. + * This will almost always be 0, but different attempt values + * are required to result in a different nonce. + * + * Except for test cases, this function should compute some cryptographic hash of + * the message, the algorithm, the key and the attempt. + */ +typedef int (*secp256k1_nonce_function)( + unsigned char *nonce32, + const unsigned char *msg32, + const unsigned char *key32, + const unsigned char *algo16, + void *data, + unsigned int attempt +); + +# if !defined(SECP256K1_GNUC_PREREQ) +# if defined(__GNUC__)&&defined(__GNUC_MINOR__) +# define SECP256K1_GNUC_PREREQ(_maj,_min) \ + ((__GNUC__<<16)+__GNUC_MINOR__>=((_maj)<<16)+(_min)) +# else +# define SECP256K1_GNUC_PREREQ(_maj,_min) 0 +# endif +# endif + +/* When this header is used at build-time the SECP256K1_BUILD define needs to be set + * to correctly setup export attributes and nullness checks. This is normally done + * by secp256k1.c but to guard against this header being included before secp256k1.c + * has had a chance to set the define (e.g. via test harnesses that just includes + * secp256k1.c) we set SECP256K1_NO_BUILD when this header is processed without the + * BUILD define so this condition can be caught. + */ +#ifndef SECP256K1_BUILD +# define SECP256K1_NO_BUILD +#endif + +/* Symbol visibility. */ +#if defined(_WIN32) + /* GCC for Windows (e.g., MinGW) accepts the __declspec syntax + * for MSVC compatibility. A __declspec declaration implies (but is not + * exactly equivalent to) __attribute__ ((visibility("default"))), and so we + * actually want __declspec even on GCC, see "Microsoft Windows Function + * Attributes" in the GCC manual and the recommendations in + * https://gcc.gnu.org/wiki/Visibility. */ +# if defined(SECP256K1_BUILD) +# if defined(DLL_EXPORT) || defined(SECP256K1_DLL_EXPORT) + /* Building libsecp256k1 as a DLL. + * 1. If using Libtool, it defines DLL_EXPORT automatically. + * 2. In other cases, SECP256K1_DLL_EXPORT must be defined. */ +# define SECP256K1_API extern __declspec (dllexport) +# endif + /* The user must define SECP256K1_STATIC when consuming libsecp256k1 as a static + * library on Windows. */ +# elif !defined(SECP256K1_STATIC) + /* Consuming libsecp256k1 as a DLL. */ +# define SECP256K1_API extern __declspec (dllimport) +# endif +#endif +#ifndef SECP256K1_API +# if defined(__GNUC__) && (__GNUC__ >= 4) && defined(SECP256K1_BUILD) + /* Building libsecp256k1 on non-Windows using GCC or compatible. */ +# define SECP256K1_API extern __attribute__ ((visibility ("default"))) +# else + /* All cases not captured above. */ +# define SECP256K1_API extern +# endif +#endif + +/* Warning attributes + * NONNULL is not used if SECP256K1_BUILD is set to avoid the compiler optimizing out + * some paranoid null checks. */ +# if defined(__GNUC__) && SECP256K1_GNUC_PREREQ(3, 4) +# define SECP256K1_WARN_UNUSED_RESULT __attribute__ ((__warn_unused_result__)) +# else +# define SECP256K1_WARN_UNUSED_RESULT +# endif +# if !defined(SECP256K1_BUILD) && defined(__GNUC__) && SECP256K1_GNUC_PREREQ(3, 4) +# define SECP256K1_ARG_NONNULL(_x) __attribute__ ((__nonnull__(_x))) +# else +# define SECP256K1_ARG_NONNULL(_x) +# endif + +/* Attribute for marking functions, types, and variables as deprecated */ +#if !defined(SECP256K1_BUILD) && defined(__has_attribute) +# if __has_attribute(__deprecated__) +# define SECP256K1_DEPRECATED(_msg) __attribute__ ((__deprecated__(_msg))) +# else +# define SECP256K1_DEPRECATED(_msg) +# endif +#else +# define SECP256K1_DEPRECATED(_msg) +#endif + +/* All flags' lower 8 bits indicate what they're for. Do not use directly. */ +#define SECP256K1_FLAGS_TYPE_MASK ((1 << 8) - 1) +#define SECP256K1_FLAGS_TYPE_CONTEXT (1 << 0) +#define SECP256K1_FLAGS_TYPE_COMPRESSION (1 << 1) +/* The higher bits contain the actual data. Do not use directly. */ +#define SECP256K1_FLAGS_BIT_CONTEXT_VERIFY (1 << 8) +#define SECP256K1_FLAGS_BIT_CONTEXT_SIGN (1 << 9) +#define SECP256K1_FLAGS_BIT_CONTEXT_DECLASSIFY (1 << 10) +#define SECP256K1_FLAGS_BIT_COMPRESSION (1 << 8) + +/** Context flags to pass to secp256k1_context_create, secp256k1_context_preallocated_size, and + * secp256k1_context_preallocated_create. */ +#define SECP256K1_CONTEXT_NONE (SECP256K1_FLAGS_TYPE_CONTEXT) + +/** Deprecated context flags. These flags are treated equivalent to SECP256K1_CONTEXT_NONE. */ +#define SECP256K1_CONTEXT_VERIFY (SECP256K1_FLAGS_TYPE_CONTEXT | SECP256K1_FLAGS_BIT_CONTEXT_VERIFY) +#define SECP256K1_CONTEXT_SIGN (SECP256K1_FLAGS_TYPE_CONTEXT | SECP256K1_FLAGS_BIT_CONTEXT_SIGN) + +/* Testing flag. Do not use. */ +#define SECP256K1_CONTEXT_DECLASSIFY (SECP256K1_FLAGS_TYPE_CONTEXT | SECP256K1_FLAGS_BIT_CONTEXT_DECLASSIFY) + +/** Flag to pass to secp256k1_ec_pubkey_serialize. */ +#define SECP256K1_EC_COMPRESSED (SECP256K1_FLAGS_TYPE_COMPRESSION | SECP256K1_FLAGS_BIT_COMPRESSION) +#define SECP256K1_EC_UNCOMPRESSED (SECP256K1_FLAGS_TYPE_COMPRESSION) + +/** Prefix byte used to tag various encoded curvepoints for specific purposes */ +#define SECP256K1_TAG_PUBKEY_EVEN 0x02 +#define SECP256K1_TAG_PUBKEY_ODD 0x03 +#define SECP256K1_TAG_PUBKEY_UNCOMPRESSED 0x04 +#define SECP256K1_TAG_PUBKEY_HYBRID_EVEN 0x06 +#define SECP256K1_TAG_PUBKEY_HYBRID_ODD 0x07 + +/** A built-in constant secp256k1 context object with static storage duration, to be + * used in conjunction with secp256k1_selftest. + * + * This context object offers *only limited functionality* , i.e., it cannot be used + * for API functions that perform computations involving secret keys, e.g., signing + * and public key generation. If this restriction applies to a specific API function, + * it is mentioned in its documentation. See secp256k1_context_create if you need a + * full context object that supports all functionality offered by the library. + * + * It is highly recommended to call secp256k1_selftest before using this context. + */ +SECP256K1_API const secp256k1_context *secp256k1_context_static; + +/** Deprecated alias for secp256k1_context_static. */ +SECP256K1_API const secp256k1_context *secp256k1_context_no_precomp +SECP256K1_DEPRECATED("Use secp256k1_context_static instead"); + +/** Perform basic self tests (to be used in conjunction with secp256k1_context_static) + * + * This function performs self tests that detect some serious usage errors and + * similar conditions, e.g., when the library is compiled for the wrong endianness. + * This is a last resort measure to be used in production. The performed tests are + * very rudimentary and are not intended as a replacement for running the test + * binaries. + * + * It is highly recommended to call this before using secp256k1_context_static. + * It is not necessary to call this function before using a context created with + * secp256k1_context_create (or secp256k1_context_preallocated_create), which will + * take care of performing the self tests. + * + * If the tests fail, this function will call the default error handler to abort the + * program (see secp256k1_context_set_error_callback). + */ +SECP256K1_API void secp256k1_selftest(void); + + +/** Create a secp256k1 context object (in dynamically allocated memory). + * + * This function uses malloc to allocate memory. It is guaranteed that malloc is + * called at most once for every call of this function. If you need to avoid dynamic + * memory allocation entirely, see secp256k1_context_static and the functions in + * secp256k1_preallocated.h. + * + * Returns: pointer to a newly created context object. + * In: flags: Always set to SECP256K1_CONTEXT_NONE (see below). + * + * The only valid non-deprecated flag in recent library versions is + * SECP256K1_CONTEXT_NONE, which will create a context sufficient for all functionality + * offered by the library. All other (deprecated) flags will be treated as equivalent + * to the SECP256K1_CONTEXT_NONE flag. Though the flags parameter primarily exists for + * historical reasons, future versions of the library may introduce new flags. + * + * If the context is intended to be used for API functions that perform computations + * involving secret keys, e.g., signing and public key generation, then it is highly + * recommended to call secp256k1_context_randomize on the context before calling + * those API functions. This will provide enhanced protection against side-channel + * leakage, see secp256k1_context_randomize for details. + * + * Do not create a new context object for each operation, as construction and + * randomization can take non-negligible time. + */ +SECP256K1_API secp256k1_context *secp256k1_context_create( + unsigned int flags +) SECP256K1_WARN_UNUSED_RESULT; + +/** Copy a secp256k1 context object (into dynamically allocated memory). + * + * This function uses malloc to allocate memory. It is guaranteed that malloc is + * called at most once for every call of this function. If you need to avoid dynamic + * memory allocation entirely, see the functions in secp256k1_preallocated.h. + * + * Cloning secp256k1_context_static is not possible, and should not be emulated by + * the caller (e.g., using memcpy). Create a new context instead. + * + * Returns: pointer to a newly created context object. + * Args: ctx: pointer to a context to copy (not secp256k1_context_static). + */ +SECP256K1_API secp256k1_context *secp256k1_context_clone( + const secp256k1_context *ctx +) SECP256K1_ARG_NONNULL(1) SECP256K1_WARN_UNUSED_RESULT; + +/** Destroy a secp256k1 context object (created in dynamically allocated memory). + * + * The context pointer may not be used afterwards. + * + * The context to destroy must have been created using secp256k1_context_create + * or secp256k1_context_clone. If the context has instead been created using + * secp256k1_context_preallocated_create or secp256k1_context_preallocated_clone, the + * behaviour is undefined. In that case, secp256k1_context_preallocated_destroy must + * be used instead. + * + * Args: ctx: pointer to a context to destroy, constructed using + * secp256k1_context_create or secp256k1_context_clone + * (i.e., not secp256k1_context_static). + */ +SECP256K1_API void secp256k1_context_destroy( + secp256k1_context *ctx +) SECP256K1_ARG_NONNULL(1); + +/** Set a callback function to be called when an illegal argument is passed to + * an API call. It will only trigger for violations that are mentioned + * explicitly in the header. + * + * The philosophy is that these shouldn't be dealt with through a + * specific return value, as calling code should not have branches to deal with + * the case that this code itself is broken. + * + * On the other hand, during debug stage, one would want to be informed about + * such mistakes, and the default (crashing) may be inadvisable. + * When this callback is triggered, the API function called is guaranteed not + * to cause a crash, though its return value and output arguments are + * undefined. + * + * When this function has not been called (or called with fn==NULL), then the + * default handler will be used. The library provides a default handler which + * writes the message to stderr and calls abort. This default handler can be + * replaced at link time if the preprocessor macro + * USE_EXTERNAL_DEFAULT_CALLBACKS is defined, which is the case if the build + * has been configured with --enable-external-default-callbacks. Then the + * following two symbols must be provided to link against: + * - void secp256k1_default_illegal_callback_fn(const char *message, void *data); + * - void secp256k1_default_error_callback_fn(const char *message, void *data); + * The library can call these default handlers even before a proper callback data + * pointer could have been set using secp256k1_context_set_illegal_callback or + * secp256k1_context_set_error_callback, e.g., when the creation of a context + * fails. In this case, the corresponding default handler will be called with + * the data pointer argument set to NULL. + * + * Args: ctx: pointer to a context object. + * In: fun: pointer to a function to call when an illegal argument is + * passed to the API, taking a message and an opaque pointer. + * (NULL restores the default handler.) + * data: the opaque pointer to pass to fun above, must be NULL for the default handler. + * + * See also secp256k1_context_set_error_callback. + */ +SECP256K1_API void secp256k1_context_set_illegal_callback( + secp256k1_context *ctx, + void (*fun)(const char *message, void *data), + const void *data +) SECP256K1_ARG_NONNULL(1); + +/** Set a callback function to be called when an internal consistency check + * fails. + * + * The default callback writes an error message to stderr and calls abort + * to abort the program. + * + * This can only trigger in case of a hardware failure, miscompilation, + * memory corruption, serious bug in the library, or other error would can + * otherwise result in undefined behaviour. It will not trigger due to mere + * incorrect usage of the API (see secp256k1_context_set_illegal_callback + * for that). After this callback returns, anything may happen, including + * crashing. + * + * Args: ctx: pointer to a context object. + * In: fun: pointer to a function to call when an internal error occurs, + * taking a message and an opaque pointer (NULL restores the + * default handler, see secp256k1_context_set_illegal_callback + * for details). + * data: the opaque pointer to pass to fun above, must be NULL for the default handler. + * + * See also secp256k1_context_set_illegal_callback. + */ +SECP256K1_API void secp256k1_context_set_error_callback( + secp256k1_context *ctx, + void (*fun)(const char *message, void *data), + const void *data +) SECP256K1_ARG_NONNULL(1); + +/** Create a secp256k1 scratch space object. + * + * Returns: a newly created scratch space. + * Args: ctx: pointer to a context object. + * In: size: amount of memory to be available as scratch space. Some extra + * (<100 bytes) will be allocated for extra accounting. + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT secp256k1_scratch_space *secp256k1_scratch_space_create( + const secp256k1_context *ctx, + size_t size +) SECP256K1_ARG_NONNULL(1); + +/** Destroy a secp256k1 scratch space. + * + * The pointer may not be used afterwards. + * Args: ctx: pointer to a context object. + * scratch: space to destroy + */ +SECP256K1_API void secp256k1_scratch_space_destroy( + const secp256k1_context *ctx, + secp256k1_scratch_space *scratch +) SECP256K1_ARG_NONNULL(1); + +/** Parse a variable-length public key into the pubkey object. + * + * Returns: 1 if the public key was fully valid. + * 0 if the public key could not be parsed or is invalid. + * Args: ctx: pointer to a context object. + * Out: pubkey: pointer to a pubkey object. If 1 is returned, it is set to a + * parsed version of input. If not, its value is undefined. + * In: input: pointer to a serialized public key + * inputlen: length of the array pointed to by input + * + * This function supports parsing compressed (33 bytes, header byte 0x02 or + * 0x03), uncompressed (65 bytes, header byte 0x04), or hybrid (65 bytes, header + * byte 0x06 or 0x07) format public keys. + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_parse( + const secp256k1_context *ctx, + secp256k1_pubkey *pubkey, + const unsigned char *input, + size_t inputlen +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Serialize a pubkey object into a serialized byte sequence. + * + * Returns: 1 always. + * Args: ctx: pointer to a context object. + * Out: output: pointer to a 65-byte (if compressed==0) or 33-byte (if + * compressed==1) byte array to place the serialized key + * in. + * In/Out: outputlen: pointer to an integer which is initially set to the + * size of output, and is overwritten with the written + * size. + * In: pubkey: pointer to a secp256k1_pubkey containing an + * initialized public key. + * flags: SECP256K1_EC_COMPRESSED if serialization should be in + * compressed format, otherwise SECP256K1_EC_UNCOMPRESSED. + */ +SECP256K1_API int secp256k1_ec_pubkey_serialize( + const secp256k1_context *ctx, + unsigned char *output, + size_t *outputlen, + const secp256k1_pubkey *pubkey, + unsigned int flags +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + +/** Compare two public keys using lexicographic (of compressed serialization) order + * + * Returns: <0 if the first public key is less than the second + * >0 if the first public key is greater than the second + * 0 if the two public keys are equal + * Args: ctx: pointer to a context object + * In: pubkey1: first public key to compare + * pubkey2: second public key to compare + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_cmp( + const secp256k1_context *ctx, + const secp256k1_pubkey *pubkey1, + const secp256k1_pubkey *pubkey2 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Parse an ECDSA signature in compact (64 bytes) format. + * + * Returns: 1 when the signature could be parsed, 0 otherwise. + * Args: ctx: pointer to a context object + * Out: sig: pointer to a signature object + * In: input64: pointer to the 64-byte array to parse + * + * The signature must consist of a 32-byte big endian R value, followed by a + * 32-byte big endian S value. If R or S fall outside of [0..order-1], the + * encoding is invalid. R and S with value 0 are allowed in the encoding. + * + * After the call, sig will always be initialized. If parsing failed or R or + * S are zero, the resulting sig value is guaranteed to fail verification for + * any message and public key. + */ +SECP256K1_API int secp256k1_ecdsa_signature_parse_compact( + const secp256k1_context *ctx, + secp256k1_ecdsa_signature *sig, + const unsigned char *input64 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Parse a DER ECDSA signature. + * + * Returns: 1 when the signature could be parsed, 0 otherwise. + * Args: ctx: pointer to a context object + * Out: sig: pointer to a signature object + * In: input: pointer to the signature to be parsed + * inputlen: the length of the array pointed to be input + * + * This function will accept any valid DER encoded signature, even if the + * encoded numbers are out of range. + * + * After the call, sig will always be initialized. If parsing failed or the + * encoded numbers are out of range, signature verification with it is + * guaranteed to fail for every message and public key. + */ +SECP256K1_API int secp256k1_ecdsa_signature_parse_der( + const secp256k1_context *ctx, + secp256k1_ecdsa_signature *sig, + const unsigned char *input, + size_t inputlen +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Serialize an ECDSA signature in DER format. + * + * Returns: 1 if enough space was available to serialize, 0 otherwise + * Args: ctx: pointer to a context object + * Out: output: pointer to an array to store the DER serialization + * In/Out: outputlen: pointer to a length integer. Initially, this integer + * should be set to the length of output. After the call + * it will be set to the length of the serialization (even + * if 0 was returned). + * In: sig: pointer to an initialized signature object + */ +SECP256K1_API int secp256k1_ecdsa_signature_serialize_der( + const secp256k1_context *ctx, + unsigned char *output, + size_t *outputlen, + const secp256k1_ecdsa_signature *sig +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + +/** Serialize an ECDSA signature in compact (64 byte) format. + * + * Returns: 1 + * Args: ctx: pointer to a context object + * Out: output64: pointer to a 64-byte array to store the compact serialization + * In: sig: pointer to an initialized signature object + * + * See secp256k1_ecdsa_signature_parse_compact for details about the encoding. + */ +SECP256K1_API int secp256k1_ecdsa_signature_serialize_compact( + const secp256k1_context *ctx, + unsigned char *output64, + const secp256k1_ecdsa_signature *sig +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Verify an ECDSA signature. + * + * Returns: 1: correct signature + * 0: incorrect or unparseable signature + * Args: ctx: pointer to a context object + * In: sig: the signature being verified. + * msghash32: the 32-byte message hash being verified. + * The verifier must make sure to apply a cryptographic + * hash function to the message by itself and not accept an + * msghash32 value directly. Otherwise, it would be easy to + * create a "valid" signature without knowledge of the + * secret key. See also + * https://bitcoin.stackexchange.com/a/81116/35586 for more + * background on this topic. + * pubkey: pointer to an initialized public key to verify with. + * + * To avoid accepting malleable signatures, only ECDSA signatures in lower-S + * form are accepted. + * + * If you need to accept ECDSA signatures from sources that do not obey this + * rule, apply secp256k1_ecdsa_signature_normalize to the signature prior to + * verification, but be aware that doing so results in malleable signatures. + * + * For details, see the comments for that function. + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_verify( + const secp256k1_context *ctx, + const secp256k1_ecdsa_signature *sig, + const unsigned char *msghash32, + const secp256k1_pubkey *pubkey +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + +/** Convert a signature to a normalized lower-S form. + * + * Returns: 1 if sigin was not normalized, 0 if it already was. + * Args: ctx: pointer to a context object + * Out: sigout: pointer to a signature to fill with the normalized form, + * or copy if the input was already normalized. (can be NULL if + * you're only interested in whether the input was already + * normalized). + * In: sigin: pointer to a signature to check/normalize (can be identical to sigout) + * + * With ECDSA a third-party can forge a second distinct signature of the same + * message, given a single initial signature, but without knowing the key. This + * is done by negating the S value modulo the order of the curve, 'flipping' + * the sign of the random point R which is not included in the signature. + * + * Forgery of the same message isn't universally problematic, but in systems + * where message malleability or uniqueness of signatures is important this can + * cause issues. This forgery can be blocked by all verifiers forcing signers + * to use a normalized form. + * + * The lower-S form reduces the size of signatures slightly on average when + * variable length encodings (such as DER) are used and is cheap to verify, + * making it a good choice. Security of always using lower-S is assured because + * anyone can trivially modify a signature after the fact to enforce this + * property anyway. + * + * The lower S value is always between 0x1 and + * 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0, + * inclusive. + * + * No other forms of ECDSA malleability are known and none seem likely, but + * there is no formal proof that ECDSA, even with this additional restriction, + * is free of other malleability. Commonly used serialization schemes will also + * accept various non-unique encodings, so care should be taken when this + * property is required for an application. + * + * The secp256k1_ecdsa_sign function will by default create signatures in the + * lower-S form, and secp256k1_ecdsa_verify will not accept others. In case + * signatures come from a system that cannot enforce this property, + * secp256k1_ecdsa_signature_normalize must be called before verification. + */ +SECP256K1_API int secp256k1_ecdsa_signature_normalize( + const secp256k1_context *ctx, + secp256k1_ecdsa_signature *sigout, + const secp256k1_ecdsa_signature *sigin +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3); + +/** An implementation of RFC6979 (using HMAC-SHA256) as nonce generation function. + * If a data pointer is passed, it is assumed to be a pointer to 32 bytes of + * extra entropy. + */ +SECP256K1_API const secp256k1_nonce_function secp256k1_nonce_function_rfc6979; + +/** A default safe nonce generation function (currently equal to secp256k1_nonce_function_rfc6979). */ +SECP256K1_API const secp256k1_nonce_function secp256k1_nonce_function_default; + +/** Create an ECDSA signature. + * + * Returns: 1: signature created + * 0: the nonce generation function failed, or the secret key was invalid. + * Args: ctx: pointer to a context object (not secp256k1_context_static). + * Out: sig: pointer to an array where the signature will be placed. + * In: msghash32: the 32-byte message hash being signed. + * seckey: pointer to a 32-byte secret key. + * noncefp: pointer to a nonce generation function. If NULL, + * secp256k1_nonce_function_default is used. + * ndata: pointer to arbitrary data used by the nonce generation function + * (can be NULL). If it is non-NULL and + * secp256k1_nonce_function_default is used, then ndata must be a + * pointer to 32-bytes of additional data. + * + * The created signature is always in lower-S form. See + * secp256k1_ecdsa_signature_normalize for more details. + */ +SECP256K1_API int secp256k1_ecdsa_sign( + const secp256k1_context *ctx, + secp256k1_ecdsa_signature *sig, + const unsigned char *msghash32, + const unsigned char *seckey, + secp256k1_nonce_function noncefp, + const void *ndata +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + +/** Verify an ECDSA secret key. + * + * A secret key is valid if it is not 0 and less than the secp256k1 curve order + * when interpreted as an integer (most significant byte first). The + * probability of choosing a 32-byte string uniformly at random which is an + * invalid secret key is negligible. + * + * Returns: 1: secret key is valid + * 0: secret key is invalid + * Args: ctx: pointer to a context object. + * In: seckey: pointer to a 32-byte secret key. + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_verify( + const secp256k1_context *ctx, + const unsigned char *seckey +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2); + +/** Compute the public key for a secret key. + * + * Returns: 1: secret was valid, public key stores. + * 0: secret was invalid, try again. + * Args: ctx: pointer to a context object (not secp256k1_context_static). + * Out: pubkey: pointer to the created public key. + * In: seckey: pointer to a 32-byte secret key. + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_create( + const secp256k1_context *ctx, + secp256k1_pubkey *pubkey, + const unsigned char *seckey +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Negates a secret key in place. + * + * Returns: 0 if the given secret key is invalid according to + * secp256k1_ec_seckey_verify. 1 otherwise + * Args: ctx: pointer to a context object + * In/Out: seckey: pointer to the 32-byte secret key to be negated. If the + * secret key is invalid according to + * secp256k1_ec_seckey_verify, this function returns 0 and + * seckey will be set to some unspecified value. + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_negate( + const secp256k1_context *ctx, + unsigned char *seckey +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2); + +/** Same as secp256k1_ec_seckey_negate, but DEPRECATED. Will be removed in + * future versions. */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_negate( + const secp256k1_context *ctx, + unsigned char *seckey +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) + SECP256K1_DEPRECATED("Use secp256k1_ec_seckey_negate instead"); + +/** Negates a public key in place. + * + * Returns: 1 always + * Args: ctx: pointer to a context object + * In/Out: pubkey: pointer to the public key to be negated. + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_negate( + const secp256k1_context *ctx, + secp256k1_pubkey *pubkey +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2); + +/** Tweak a secret key by adding tweak to it. + * + * Returns: 0 if the arguments are invalid or the resulting secret key would be + * invalid (only when the tweak is the negation of the secret key). 1 + * otherwise. + * Args: ctx: pointer to a context object. + * In/Out: seckey: pointer to a 32-byte secret key. If the secret key is + * invalid according to secp256k1_ec_seckey_verify, this + * function returns 0. seckey will be set to some unspecified + * value if this function returns 0. + * In: tweak32: pointer to a 32-byte tweak, which must be valid according to + * secp256k1_ec_seckey_verify or 32 zero bytes. For uniformly + * random 32-byte tweaks, the chance of being invalid is + * negligible (around 1 in 2^128). + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_tweak_add( + const secp256k1_context *ctx, + unsigned char *seckey, + const unsigned char *tweak32 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Same as secp256k1_ec_seckey_tweak_add, but DEPRECATED. Will be removed in + * future versions. */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_tweak_add( + const secp256k1_context *ctx, + unsigned char *seckey, + const unsigned char *tweak32 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) + SECP256K1_DEPRECATED("Use secp256k1_ec_seckey_tweak_add instead"); + +/** Tweak a public key by adding tweak times the generator to it. + * + * Returns: 0 if the arguments are invalid or the resulting public key would be + * invalid (only when the tweak is the negation of the corresponding + * secret key). 1 otherwise. + * Args: ctx: pointer to a context object. + * In/Out: pubkey: pointer to a public key object. pubkey will be set to an + * invalid value if this function returns 0. + * In: tweak32: pointer to a 32-byte tweak, which must be valid according to + * secp256k1_ec_seckey_verify or 32 zero bytes. For uniformly + * random 32-byte tweaks, the chance of being invalid is + * negligible (around 1 in 2^128). + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_tweak_add( + const secp256k1_context *ctx, + secp256k1_pubkey *pubkey, + const unsigned char *tweak32 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Tweak a secret key by multiplying it by a tweak. + * + * Returns: 0 if the arguments are invalid. 1 otherwise. + * Args: ctx: pointer to a context object. + * In/Out: seckey: pointer to a 32-byte secret key. If the secret key is + * invalid according to secp256k1_ec_seckey_verify, this + * function returns 0. seckey will be set to some unspecified + * value if this function returns 0. + * In: tweak32: pointer to a 32-byte tweak. If the tweak is invalid according to + * secp256k1_ec_seckey_verify, this function returns 0. For + * uniformly random 32-byte arrays the chance of being invalid + * is negligible (around 1 in 2^128). + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_tweak_mul( + const secp256k1_context *ctx, + unsigned char *seckey, + const unsigned char *tweak32 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Same as secp256k1_ec_seckey_tweak_mul, but DEPRECATED. Will be removed in + * future versions. */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_tweak_mul( + const secp256k1_context *ctx, + unsigned char *seckey, + const unsigned char *tweak32 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) + SECP256K1_DEPRECATED("Use secp256k1_ec_seckey_tweak_mul instead"); + +/** Tweak a public key by multiplying it by a tweak value. + * + * Returns: 0 if the arguments are invalid. 1 otherwise. + * Args: ctx: pointer to a context object. + * In/Out: pubkey: pointer to a public key object. pubkey will be set to an + * invalid value if this function returns 0. + * In: tweak32: pointer to a 32-byte tweak. If the tweak is invalid according to + * secp256k1_ec_seckey_verify, this function returns 0. For + * uniformly random 32-byte arrays the chance of being invalid + * is negligible (around 1 in 2^128). + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_tweak_mul( + const secp256k1_context *ctx, + secp256k1_pubkey *pubkey, + const unsigned char *tweak32 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Randomizes the context to provide enhanced protection against side-channel leakage. + * + * Returns: 1: randomization successful + * 0: error + * Args: ctx: pointer to a context object (not secp256k1_context_static). + * In: seed32: pointer to a 32-byte random seed (NULL resets to initial state). + * + * While secp256k1 code is written and tested to be constant-time no matter what + * secret values are, it is possible that a compiler may output code which is not, + * and also that the CPU may not emit the same radio frequencies or draw the same + * amount of power for all values. Randomization of the context shields against + * side-channel observations which aim to exploit secret-dependent behaviour in + * certain computations which involve secret keys. + * + * It is highly recommended to call this function on contexts returned from + * secp256k1_context_create or secp256k1_context_clone (or from the corresponding + * functions in secp256k1_preallocated.h) before using these contexts to call API + * functions that perform computations involving secret keys, e.g., signing and + * public key generation. It is possible to call this function more than once on + * the same context, and doing so before every few computations involving secret + * keys is recommended as a defense-in-depth measure. Randomization of the static + * context secp256k1_context_static is not supported. + * + * Currently, the random seed is mainly used for blinding multiplications of a + * secret scalar with the elliptic curve base point. Multiplications of this + * kind are performed by exactly those API functions which are documented to + * require a context that is not secp256k1_context_static. As a rule of thumb, + * these are all functions which take a secret key (or a keypair) as an input. + * A notable exception to that rule is the ECDH module, which relies on a different + * kind of elliptic curve point multiplication and thus does not benefit from + * enhanced protection against side-channel leakage currently. + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_context_randomize( + secp256k1_context *ctx, + const unsigned char *seed32 +) SECP256K1_ARG_NONNULL(1); + +/** Add a number of public keys together. + * + * Returns: 1: the sum of the public keys is valid. + * 0: the sum of the public keys is not valid. + * Args: ctx: pointer to a context object. + * Out: out: pointer to a public key object for placing the resulting public key. + * In: ins: pointer to array of pointers to public keys. + * n: the number of public keys to add together (must be at least 1). + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_combine( + const secp256k1_context *ctx, + secp256k1_pubkey *out, + const secp256k1_pubkey * const *ins, + size_t n +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Compute a tagged hash as defined in BIP-340. + * + * This is useful for creating a message hash and achieving domain separation + * through an application-specific tag. This function returns + * SHA256(SHA256(tag)||SHA256(tag)||msg). Therefore, tagged hash + * implementations optimized for a specific tag can precompute the SHA256 state + * after hashing the tag hashes. + * + * Returns: 1 always. + * Args: ctx: pointer to a context object + * Out: hash32: pointer to a 32-byte array to store the resulting hash + * In: tag: pointer to an array containing the tag + * taglen: length of the tag array + * msg: pointer to an array containing the message + * msglen: length of the message array + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_tagged_sha256( + const secp256k1_context *ctx, + unsigned char *hash32, + const unsigned char *tag, + size_t taglen, + const unsigned char *msg, + size_t msglen +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(5); + +#ifdef __cplusplus +} +#endif + +#endif /* SECP256K1_H */ diff --git a/include/secp256k1_ecdh.h b/include/secp256k1_ecdh.h new file mode 100644 index 0000000..4d9da34 --- /dev/null +++ b/include/secp256k1_ecdh.h @@ -0,0 +1,63 @@ +#ifndef SECP256K1_ECDH_H +#define SECP256K1_ECDH_H + +#include "secp256k1.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** A pointer to a function that hashes an EC point to obtain an ECDH secret + * + * Returns: 1 if the point was successfully hashed. + * 0 will cause secp256k1_ecdh to fail and return 0. + * Other return values are not allowed, and the behaviour of + * secp256k1_ecdh is undefined for other return values. + * Out: output: pointer to an array to be filled by the function + * In: x32: pointer to a 32-byte x coordinate + * y32: pointer to a 32-byte y coordinate + * data: arbitrary data pointer that is passed through + */ +typedef int (*secp256k1_ecdh_hash_function)( + unsigned char *output, + const unsigned char *x32, + const unsigned char *y32, + void *data +); + +/** An implementation of SHA256 hash function that applies to compressed public key. + * Populates the output parameter with 32 bytes. */ +SECP256K1_API const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_function_sha256; + +/** A default ECDH hash function (currently equal to secp256k1_ecdh_hash_function_sha256). + * Populates the output parameter with 32 bytes. */ +SECP256K1_API const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_function_default; + +/** Compute an EC Diffie-Hellman secret in constant time + * + * Returns: 1: exponentiation was successful + * 0: scalar was invalid (zero or overflow) or hashfp returned 0 + * Args: ctx: pointer to a context object. + * Out: output: pointer to an array to be filled by hashfp. + * In: pubkey: pointer to a secp256k1_pubkey containing an initialized public key. + * seckey: a 32-byte scalar with which to multiply the point. + * hashfp: pointer to a hash function. If NULL, + * secp256k1_ecdh_hash_function_sha256 is used + * (in which case, 32 bytes will be written to output). + * data: arbitrary data pointer that is passed through to hashfp + * (can be NULL for secp256k1_ecdh_hash_function_sha256). + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdh( + const secp256k1_context *ctx, + unsigned char *output, + const secp256k1_pubkey *pubkey, + const unsigned char *seckey, + secp256k1_ecdh_hash_function hashfp, + void *data +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + +#ifdef __cplusplus +} +#endif + +#endif /* SECP256K1_ECDH_H */ diff --git a/include/secp256k1_extrakeys.h b/include/secp256k1_extrakeys.h new file mode 100644 index 0000000..4cc6d4f --- /dev/null +++ b/include/secp256k1_extrakeys.h @@ -0,0 +1,247 @@ +#ifndef SECP256K1_EXTRAKEYS_H +#define SECP256K1_EXTRAKEYS_H + +#include "secp256k1.h" + +#ifdef __cplusplus +extern "C" { +#endif + + /** Opaque data structure that holds a parsed and valid "x-only" public key. + * An x-only pubkey encodes a point whose Y coordinate is even. It is + * serialized using only its X coordinate (32 bytes). See BIP-340 for more + * information about x-only pubkeys. + * + * The exact representation of data inside is implementation defined and not + * guaranteed to be portable between different platforms or versions. It is + * however guaranteed to be 64 bytes in size, and can be safely copied/moved. + * If you need to convert to a format suitable for storage, transmission, use + * use secp256k1_xonly_pubkey_serialize and secp256k1_xonly_pubkey_parse. To + * compare keys, use secp256k1_xonly_pubkey_cmp. + */ + typedef struct { + unsigned char data[64]; + } secp256k1_xonly_pubkey; + + /** Opaque data structure that holds a keypair consisting of a secret and a + * public key. + * + * The exact representation of data inside is implementation defined and not + * guaranteed to be portable between different platforms or versions. It is + * however guaranteed to be 96 bytes in size, and can be safely copied/moved. + */ + typedef struct { + unsigned char data[96]; + } secp256k1_keypair; + + /** Parse a 32-byte sequence into a xonly_pubkey object. + * + * Returns: 1 if the public key was fully valid. + * 0 if the public key could not be parsed or is invalid. + * + * Args: ctx: pointer to a context object. + * Out: pubkey: pointer to a pubkey object. If 1 is returned, it is set to a + * parsed version of input. If not, it's set to an invalid value. + * In: input32: pointer to a serialized xonly_pubkey. + */ + SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_parse( + const secp256k1_context* ctx, + secp256k1_xonly_pubkey* pubkey, + const unsigned char* input32 + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + + /** Serialize an xonly_pubkey object into a 32-byte sequence. + * + * Returns: 1 always. + * + * Args: ctx: pointer to a context object. + * Out: output32: pointer to a 32-byte array to place the serialized key in. + * In: pubkey: pointer to a secp256k1_xonly_pubkey containing an initialized public key. + */ + SECP256K1_API int secp256k1_xonly_pubkey_serialize( + const secp256k1_context* ctx, + unsigned char* output32, + const secp256k1_xonly_pubkey* pubkey + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + + /** Compare two x-only public keys using lexicographic order + * + * Returns: <0 if the first public key is less than the second + * >0 if the first public key is greater than the second + * 0 if the two public keys are equal + * Args: ctx: pointer to a context object. + * In: pubkey1: first public key to compare + * pubkey2: second public key to compare + */ + SECP256K1_API int secp256k1_xonly_pubkey_cmp( + const secp256k1_context* ctx, + const secp256k1_xonly_pubkey* pk1, + const secp256k1_xonly_pubkey* pk2 + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + + /** Converts a secp256k1_pubkey into a secp256k1_xonly_pubkey. + * + * Returns: 1 always. + * + * Args: ctx: pointer to a context object. + * Out: xonly_pubkey: pointer to an x-only public key object for placing the converted public key. + * pk_parity: Ignored if NULL. Otherwise, pointer to an integer that + * will be set to 1 if the point encoded by xonly_pubkey is + * the negation of the pubkey and set to 0 otherwise. + * In: pubkey: pointer to a public key that is converted. + */ + SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_from_pubkey( + const secp256k1_context* ctx, + secp256k1_xonly_pubkey* xonly_pubkey, + int* pk_parity, + const secp256k1_pubkey* pubkey + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(4); + + /** Tweak an x-only public key by adding the generator multiplied with tweak32 + * to it. + * + * Note that the resulting point can not in general be represented by an x-only + * pubkey because it may have an odd Y coordinate. Instead, the output_pubkey + * is a normal secp256k1_pubkey. + * + * Returns: 0 if the arguments are invalid or the resulting public key would be + * invalid (only when the tweak is the negation of the corresponding + * secret key). 1 otherwise. + * + * Args: ctx: pointer to a context object. + * Out: output_pubkey: pointer to a public key to store the result. Will be set + * to an invalid value if this function returns 0. + * In: internal_pubkey: pointer to an x-only pubkey to apply the tweak to. + * tweak32: pointer to a 32-byte tweak, which must be valid + * according to secp256k1_ec_seckey_verify or 32 zero + * bytes. For uniformly random 32-byte tweaks, the chance of + * being invalid is negligible (around 1 in 2^128). + */ + SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_tweak_add( + const secp256k1_context* ctx, + secp256k1_pubkey* output_pubkey, + const secp256k1_xonly_pubkey* internal_pubkey, + const unsigned char* tweak32 + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + + /** Checks that a tweaked pubkey is the result of calling + * secp256k1_xonly_pubkey_tweak_add with internal_pubkey and tweak32. + * + * The tweaked pubkey is represented by its 32-byte x-only serialization and + * its pk_parity, which can both be obtained by converting the result of + * tweak_add to a secp256k1_xonly_pubkey. + * + * Note that this alone does _not_ verify that the tweaked pubkey is a + * commitment. If the tweak is not chosen in a specific way, the tweaked pubkey + * can easily be the result of a different internal_pubkey and tweak. + * + * Returns: 0 if the arguments are invalid or the tweaked pubkey is not the + * result of tweaking the internal_pubkey with tweak32. 1 otherwise. + * Args: ctx: pointer to a context object. + * In: tweaked_pubkey32: pointer to a serialized xonly_pubkey. + * tweaked_pk_parity: the parity of the tweaked pubkey (whose serialization + * is passed in as tweaked_pubkey32). This must match the + * pk_parity value that is returned when calling + * secp256k1_xonly_pubkey with the tweaked pubkey, or + * this function will fail. + * internal_pubkey: pointer to an x-only public key object to apply the tweak to. + * tweak32: pointer to a 32-byte tweak. + */ + SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_tweak_add_check( + const secp256k1_context* ctx, + const unsigned char* tweaked_pubkey32, + int tweaked_pk_parity, + const secp256k1_xonly_pubkey* internal_pubkey, + const unsigned char* tweak32 + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(5); + + /** Compute the keypair for a secret key. + * + * Returns: 1: secret was valid, keypair is ready to use + * 0: secret was invalid, try again with a different secret + * Args: ctx: pointer to a context object (not secp256k1_context_static). + * Out: keypair: pointer to the created keypair. + * In: seckey: pointer to a 32-byte secret key. + */ + SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_create( + const secp256k1_context* ctx, + secp256k1_keypair* keypair, + const unsigned char* seckey + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + + /** Get the secret key from a keypair. + * + * Returns: 1 always. + * Args: ctx: pointer to a context object. + * Out: seckey: pointer to a 32-byte buffer for the secret key. + * In: keypair: pointer to a keypair. + */ + SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_sec( + const secp256k1_context* ctx, + unsigned char* seckey, + const secp256k1_keypair* keypair + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + + /** Get the public key from a keypair. + * + * Returns: 1 always. + * Args: ctx: pointer to a context object. + * Out: pubkey: pointer to a pubkey object, set to the keypair public key. + * In: keypair: pointer to a keypair. + */ + SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_pub( + const secp256k1_context* ctx, + secp256k1_pubkey* pubkey, + const secp256k1_keypair* keypair + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + + /** Get the x-only public key from a keypair. + * + * This is the same as calling secp256k1_keypair_pub and then + * secp256k1_xonly_pubkey_from_pubkey. + * + * Returns: 1 always. + * Args: ctx: pointer to a context object. + * Out: pubkey: pointer to an xonly_pubkey object, set to the keypair + * public key after converting it to an xonly_pubkey. + * pk_parity: Ignored if NULL. Otherwise, pointer to an integer that will be set to the + * pk_parity argument of secp256k1_xonly_pubkey_from_pubkey. + * In: keypair: pointer to a keypair. + */ + SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_xonly_pub( + const secp256k1_context* ctx, + secp256k1_xonly_pubkey* pubkey, + int* pk_parity, + const secp256k1_keypair* keypair + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(4); + + /** Tweak a keypair by adding tweak32 to the secret key and updating the public + * key accordingly. + * + * Calling this function and then secp256k1_keypair_pub results in the same + * public key as calling secp256k1_keypair_xonly_pub and then + * secp256k1_xonly_pubkey_tweak_add. + * + * Returns: 0 if the arguments are invalid or the resulting keypair would be + * invalid (only when the tweak is the negation of the keypair's + * secret key). 1 otherwise. + * + * Args: ctx: pointer to a context object. + * In/Out: keypair: pointer to a keypair to apply the tweak to. Will be set to + * an invalid value if this function returns 0. + * In: tweak32: pointer to a 32-byte tweak, which must be valid according to + * secp256k1_ec_seckey_verify or 32 zero bytes. For uniformly + * random 32-byte tweaks, the chance of being invalid is + * negligible (around 1 in 2^128). + */ + SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_xonly_tweak_add( + const secp256k1_context* ctx, + secp256k1_keypair* keypair, + const unsigned char* tweak32 + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +#ifdef __cplusplus +} +#endif + +#endif /* SECP256K1_EXTRAKEYS_H */
\ No newline at end of file diff --git a/include/secp256k1_schnorrsig.h b/include/secp256k1_schnorrsig.h new file mode 100644 index 0000000..5c338f4 --- /dev/null +++ b/include/secp256k1_schnorrsig.h @@ -0,0 +1,190 @@ +#ifndef SECP256K1_SCHNORRSIG_H +#define SECP256K1_SCHNORRSIG_H + +#include "secp256k1.h" +#include "secp256k1_extrakeys.h" + +#ifdef __cplusplus +extern "C" { +#endif + + /** This module implements a variant of Schnorr signatures compliant with + * Bitcoin Improvement Proposal 340 "Schnorr Signatures for secp256k1" + * (https://github.com/bitcoin/bips/blob/master/bip-0340.mediawiki). + */ + + /** A pointer to a function to deterministically generate a nonce. + * + * Same as secp256k1_nonce function with the exception of accepting an + * additional pubkey argument and not requiring an attempt argument. The pubkey + * argument can protect signature schemes with key-prefixed challenge hash + * inputs against reusing the nonce when signing with the wrong precomputed + * pubkey. + * + * Returns: 1 if a nonce was successfully generated. 0 will cause signing to + * return an error. + * Out: nonce32: pointer to a 32-byte array to be filled by the function + * In: msg: the message being verified. Is NULL if and only if msglen + * is 0. + * msglen: the length of the message + * key32: pointer to a 32-byte secret key (will not be NULL) + * xonly_pk32: the 32-byte serialized xonly pubkey corresponding to key32 + * (will not be NULL) + * algo: pointer to an array describing the signature + * algorithm (will not be NULL) + * algolen: the length of the algo array + * data: arbitrary data pointer that is passed through + * + * Except for test cases, this function should compute some cryptographic hash of + * the message, the key, the pubkey, the algorithm description, and data. + */ + typedef int (*secp256k1_nonce_function_hardened)( + unsigned char* nonce32, + const unsigned char* msg, + size_t msglen, + const unsigned char* key32, + const unsigned char* xonly_pk32, + const unsigned char* algo, + size_t algolen, + void* data + ); + + /** An implementation of the nonce generation function as defined in Bitcoin + * Improvement Proposal 340 "Schnorr Signatures for secp256k1" + * (https://github.com/bitcoin/bips/blob/master/bip-0340.mediawiki). + * + * If a data pointer is passed, it is assumed to be a pointer to 32 bytes of + * auxiliary random data as defined in BIP-340. If the data pointer is NULL, + * the nonce derivation procedure follows BIP-340 by setting the auxiliary + * random data to zero. The algo argument must be non-NULL, otherwise the + * function will fail and return 0. The hash will be tagged with algo. + * Therefore, to create BIP-340 compliant signatures, algo must be set to + * "BIP0340/nonce" and algolen to 13. + */ + SECP256K1_API const secp256k1_nonce_function_hardened secp256k1_nonce_function_bip340; + + /** Data structure that contains additional arguments for schnorrsig_sign_custom. + * + * A schnorrsig_extraparams structure object can be initialized correctly by + * setting it to SECP256K1_SCHNORRSIG_EXTRAPARAMS_INIT. + * + * Members: + * magic: set to SECP256K1_SCHNORRSIG_EXTRAPARAMS_MAGIC at initialization + * and has no other function than making sure the object is + * initialized. + * noncefp: pointer to a nonce generation function. If NULL, + * secp256k1_nonce_function_bip340 is used + * ndata: pointer to arbitrary data used by the nonce generation function + * (can be NULL). If it is non-NULL and + * secp256k1_nonce_function_bip340 is used, then ndata must be a + * pointer to 32-byte auxiliary randomness as per BIP-340. + */ + typedef struct { + unsigned char magic[4]; + secp256k1_nonce_function_hardened noncefp; + void* ndata; + } secp256k1_schnorrsig_extraparams; + +#define SECP256K1_SCHNORRSIG_EXTRAPARAMS_MAGIC { 0xda, 0x6f, 0xb3, 0x8c } +#define SECP256K1_SCHNORRSIG_EXTRAPARAMS_INIT {\ + SECP256K1_SCHNORRSIG_EXTRAPARAMS_MAGIC,\ + NULL,\ + NULL\ +} + + /** Create a Schnorr signature. + * + * Does _not_ strictly follow BIP-340 because it does not verify the resulting + * signature. Instead, you can manually use secp256k1_schnorrsig_verify and + * abort if it fails. + * + * This function only signs 32-byte messages. If you have messages of a + * different size (or the same size but without a context-specific tag + * prefix), it is recommended to create a 32-byte message hash with + * secp256k1_tagged_sha256 and then sign the hash. Tagged hashing allows + * providing an context-specific tag for domain separation. This prevents + * signatures from being valid in multiple contexts by accident. + * + * Returns 1 on success, 0 on failure. + * Args: ctx: pointer to a context object (not secp256k1_context_static). + * Out: sig64: pointer to a 64-byte array to store the serialized signature. + * In: msg32: the 32-byte message being signed. + * keypair: pointer to an initialized keypair. + * aux_rand32: 32 bytes of fresh randomness. While recommended to provide + * this, it is only supplemental to security and can be NULL. A + * NULL argument is treated the same as an all-zero one. See + * BIP-340 "Default Signing" for a full explanation of this + * argument and for guidance if randomness is expensive. + */ + SECP256K1_API int secp256k1_schnorrsig_sign32( + const secp256k1_context* ctx, + unsigned char* sig64, + const unsigned char* msg32, + const secp256k1_keypair* keypair, + const unsigned char* aux_rand32 + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + + /** Same as secp256k1_schnorrsig_sign32, but DEPRECATED. Will be removed in + * future versions. */ + SECP256K1_API int secp256k1_schnorrsig_sign( + const secp256k1_context* ctx, + unsigned char* sig64, + const unsigned char* msg32, + const secp256k1_keypair* keypair, + const unsigned char* aux_rand32 + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) + SECP256K1_DEPRECATED("Use secp256k1_schnorrsig_sign32 instead"); + + /** Create a Schnorr signature with a more flexible API. + * + * Same arguments as secp256k1_schnorrsig_sign except that it allows signing + * variable length messages and accepts a pointer to an extraparams object that + * allows customizing signing by passing additional arguments. + * + * Equivalent to secp256k1_schnorrsig_sign32(..., aux_rand32) if msglen is 32 + * and extraparams is initialized as follows: + * ``` + * secp256k1_schnorrsig_extraparams extraparams = SECP256K1_SCHNORRSIG_EXTRAPARAMS_INIT; + * extraparams.ndata = (unsigned char*)aux_rand32; + * ``` + * + * Returns 1 on success, 0 on failure. + * Args: ctx: pointer to a context object (not secp256k1_context_static). + * Out: sig64: pointer to a 64-byte array to store the serialized signature. + * In: msg: the message being signed. Can only be NULL if msglen is 0. + * msglen: length of the message. + * keypair: pointer to an initialized keypair. + * extraparams: pointer to an extraparams object (can be NULL). + */ + SECP256K1_API int secp256k1_schnorrsig_sign_custom( + const secp256k1_context* ctx, + unsigned char* sig64, + const unsigned char* msg, + size_t msglen, + const secp256k1_keypair* keypair, + secp256k1_schnorrsig_extraparams* extraparams + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(5); + + /** Verify a Schnorr signature. + * + * Returns: 1: correct signature + * 0: incorrect signature + * Args: ctx: pointer to a context object. + * In: sig64: pointer to the 64-byte signature to verify. + * msg: the message being verified. Can only be NULL if msglen is 0. + * msglen: length of the message + * pubkey: pointer to an x-only public key to verify with + */ + SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_schnorrsig_verify( + const secp256k1_context* ctx, + const unsigned char* sig64, + const unsigned char* msg, + size_t msglen, + const secp256k1_xonly_pubkey* pubkey + ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(5); + +#ifdef __cplusplus +} +#endif + +#endif /* SECP256K1_SCHNORRSIG_H */ |