diff options
Diffstat (limited to 'include/psa/crypto_builtin_key_derivation.h')
| -rw-r--r-- | include/psa/crypto_builtin_key_derivation.h | 118 |
1 files changed, 118 insertions, 0 deletions
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 */ |