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https://github.com/Mbed-TLS/mbedtls.git
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8a045ce5e6
Move all error translation utilities to psa_util.c. Introduce macros and functions to avoid having a local copy of the error translating function in each place. Identify overlapping errors and introduce a generic function. Provide a single macro for all error translations (unless one file needs a couple of different ones). Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
102 lines
3.3 KiB
C
102 lines
3.3 KiB
C
/**
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* Hash information that's independent from the crypto implementation.
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*
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* This can be used by:
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* - code based on PSA
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* - code based on the legacy API
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* - code based on either of them depending on MBEDTLS_USE_PSA_CRYPTO
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* - code based on either of them depending on what's available
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*
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* Note: this internal module will go away when everything becomes based on
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* PSA Crypto; it is a helper for the transition while hash algorithms are
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* still represented using mbedtls_md_type_t in most places even when PSA is
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* used for the actual crypto computations.
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*
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBEDTLS_HASH_INFO_H
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#define MBEDTLS_HASH_INFO_H
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#include "common.h"
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#include "mbedtls/md.h"
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#include "psa/crypto.h"
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#include "mbedtls/platform_util.h"
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/** \def MBEDTLS_HASH_MAX_SIZE
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*
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* Maximum size of a hash based on configuration.
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*/
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#if defined(MBEDTLS_MD_C) && ( \
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!defined(MBEDTLS_PSA_CRYPTO_C) || \
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MBEDTLS_MD_MAX_SIZE >= PSA_HASH_MAX_SIZE)
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#define MBEDTLS_HASH_MAX_SIZE MBEDTLS_MD_MAX_SIZE
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#elif defined(MBEDTLS_PSA_CRYPTO_C) && ( \
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!defined(MBEDTLS_MD_C) || \
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PSA_HASH_MAX_SIZE >= MBEDTLS_MD_MAX_SIZE)
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#define MBEDTLS_HASH_MAX_SIZE PSA_HASH_MAX_SIZE
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#endif
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/** Get the output length of the given hash type from its MD type.
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*
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* \note To get the output length from the PSA alg, use \c PSA_HASH_LENGTH().
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*
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* \param md_type The hash MD type.
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*
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* \return The output length in bytes, or 0 if not known.
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*/
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unsigned char mbedtls_hash_info_get_size(mbedtls_md_type_t md_type);
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/** Get the block size of the given hash type from its MD type.
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*
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* \note To get the output length from the PSA alg, use
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* \c PSA_HASH_BLOCK_LENGTH().
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*
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* \param md_type The hash MD type.
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*
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* \return The block size in bytes, or 0 if not known.
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*/
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unsigned char mbedtls_hash_info_get_block_size(mbedtls_md_type_t md_type);
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/** Get the PSA alg from the MD type.
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*
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* \param md_type The hash MD type.
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*
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* \return The corresponding PSA algorithm identifier,
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* or PSA_ALG_NONE if not known.
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*/
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psa_algorithm_t mbedtls_hash_info_psa_from_md(mbedtls_md_type_t md_type);
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/** Get the MD type alg from the PSA algorithm identifier.
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*
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* \param psa_alg The PSA hash algorithm.
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*
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* \return The corresponding MD type,
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* or MBEDTLS_MD_NONE if not known.
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*/
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mbedtls_md_type_t mbedtls_hash_info_md_from_psa(psa_algorithm_t psa_alg);
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#if !defined(MBEDTLS_DEPRECATED_REMOVED)
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/** Convert PSA status to MD error code.
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*
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* \param status PSA status.
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*
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* \return The corresponding MD error code,
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*/
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int MBEDTLS_DEPRECATED mbedtls_md_error_from_psa(psa_status_t status);
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#endif /* !MBEDTLS_DEPRECATED_REMOVED */
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#endif /* MBEDTLS_HASH_INFO_H */
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