From 7cb7a93de4f6f5e741bc5129e3d928e44f050930 Mon Sep 17 00:00:00 2001 From: vnugent Date: Tue, 23 Apr 2024 18:19:31 -0400 Subject: refactor!: MbedTLS on Windows, switch to uint32 --- vendor/mbedtls/md.h | 640 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 640 insertions(+) create mode 100644 vendor/mbedtls/md.h (limited to 'vendor/mbedtls/md.h') diff --git a/vendor/mbedtls/md.h b/vendor/mbedtls/md.h new file mode 100644 index 0000000..ff7b133 --- /dev/null +++ b/vendor/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 + */ +/* + * 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 + +#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 */ -- cgit