mirror of
https://github.com/Mbed-TLS/mbedtls.git
synced 2025-10-30 10:45:34 +03:00
100 lines
3.2 KiB
C
100 lines
3.2 KiB
C
/**
|
|
* Hash information that's independent from the crypto implementation.
|
|
*
|
|
* This can be used by:
|
|
* - code based on PSA
|
|
* - code based on the legacy API
|
|
* - code based on either of them depending on MBEDTLS_USE_PSA_CRYPTO
|
|
* - code based on either of them depending on what's available
|
|
*
|
|
* Note: this internal module will go away when everything becomes based on
|
|
* PSA Crypto; it is a helper for the transition while hash algorithms are
|
|
* still represented using mbedtls_md_type_t in most places even when PSA is
|
|
* used for the actual crypto computations.
|
|
*
|
|
* Copyright The Mbed TLS Contributors
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
* not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
#ifndef MBEDTLS_HASH_INFO_H
|
|
#define MBEDTLS_HASH_INFO_H
|
|
|
|
#include "common.h"
|
|
|
|
#include "mbedtls/md.h"
|
|
#include "psa/crypto.h"
|
|
|
|
/** \def MBEDTLS_HASH_MAX_SIZE
|
|
*
|
|
* Maximum size of a hash based on configuration.
|
|
*/
|
|
#if defined(MBEDTLS_MD_C) && ( \
|
|
!defined(MBEDTLS_PSA_CRYPTO_C) || \
|
|
MBEDTLS_MD_MAX_SIZE >= PSA_HASH_MAX_SIZE)
|
|
#define MBEDTLS_HASH_MAX_SIZE MBEDTLS_MD_MAX_SIZE
|
|
#elif defined(MBEDTLS_PSA_CRYPTO_C) && ( \
|
|
!defined(MBEDTLS_MD_C) || \
|
|
PSA_HASH_MAX_SIZE >= MBEDTLS_MD_MAX_SIZE)
|
|
#define MBEDTLS_HASH_MAX_SIZE PSA_HASH_MAX_SIZE
|
|
#endif
|
|
|
|
/** Get the output length of the given hash type from its MD type.
|
|
*
|
|
* \note To get the output length from the PSA alg, use \c PSA_HASH_LENGTH().
|
|
*
|
|
* \param md_type The hash MD type.
|
|
*
|
|
* \return The output length in bytes, or 0 if not known.
|
|
*/
|
|
unsigned char mbedtls_hash_info_get_size(mbedtls_md_type_t md_type);
|
|
|
|
/** Get the block size of the given hash type from its MD type.
|
|
*
|
|
* \note To get the output length from the PSA alg, use
|
|
* \c PSA_HASH_BLOCK_LENGTH().
|
|
*
|
|
* \param md_type The hash MD type.
|
|
*
|
|
* \return The block size in bytes, or 0 if not known.
|
|
*/
|
|
unsigned char mbedtls_hash_info_get_block_size(mbedtls_md_type_t md_type);
|
|
|
|
/** Get the PSA alg from the MD type.
|
|
*
|
|
* \param md_type The hash MD type.
|
|
*
|
|
* \return The corresponding PSA algorithm identifier,
|
|
* or PSA_ALG_NONE if not known.
|
|
*/
|
|
psa_algorithm_t mbedtls_hash_info_psa_from_md(mbedtls_md_type_t md_type);
|
|
|
|
/** Get the MD type alg from the PSA algorithm identifier.
|
|
*
|
|
* \param psa_alg The PSA hash algorithm.
|
|
*
|
|
* \return The corresponding MD type,
|
|
* or MBEDTLS_MD_NONE if not known.
|
|
*/
|
|
mbedtls_md_type_t mbedtls_hash_info_md_from_psa(psa_algorithm_t psa_alg);
|
|
|
|
/** Convert PSA status to MD error code.
|
|
*
|
|
* \param status PSA status.
|
|
*
|
|
* \return The corresponding MD error code,
|
|
*/
|
|
int mbedtls_md_error_from_psa(psa_status_t status);
|
|
|
|
#endif /* MBEDTLS_HASH_INFO_H */
|