109 lines
3 KiB
C
109 lines
3 KiB
C
/*
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* Hash information that's independent from the crypto implementation.
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*
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* (See the corresponding header file for usage notes.)
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*/
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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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#include "hash_info.h"
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#include "legacy_or_psa.h"
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typedef struct
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{
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psa_algorithm_t psa_alg;
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mbedtls_md_type_t md_type;
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unsigned char size;
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unsigned char block_size;
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} hash_entry;
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static const hash_entry hash_table[] = {
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#if defined(MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA)
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{ PSA_ALG_MD5, MBEDTLS_MD_MD5, 16, 64 },
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#endif
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#if defined(MBEDTLS_HAS_ALG_RIPEMD160_VIA_LOWLEVEL_OR_PSA)
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{ PSA_ALG_RIPEMD160, MBEDTLS_MD_RIPEMD160, 20, 64 },
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#endif
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#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_LOWLEVEL_OR_PSA)
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{ PSA_ALG_SHA_1, MBEDTLS_MD_SHA1, 20, 64 },
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#endif
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#if defined(MBEDTLS_HAS_ALG_SHA_224_VIA_LOWLEVEL_OR_PSA)
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{ PSA_ALG_SHA_224, MBEDTLS_MD_SHA224, 28, 64 },
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#endif
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#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_LOWLEVEL_OR_PSA)
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{ PSA_ALG_SHA_256, MBEDTLS_MD_SHA256, 32, 64 },
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#endif
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#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_LOWLEVEL_OR_PSA)
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{ PSA_ALG_SHA_384, MBEDTLS_MD_SHA384, 48, 128 },
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#endif
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#if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_LOWLEVEL_OR_PSA)
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{ PSA_ALG_SHA_512, MBEDTLS_MD_SHA512, 64, 128 },
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#endif
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{ PSA_ALG_NONE, MBEDTLS_MD_NONE, 0, 0 },
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};
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/* Get size from MD type */
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unsigned char mbedtls_hash_info_get_size( mbedtls_md_type_t md_type )
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{
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const hash_entry *entry = hash_table;
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while( entry->md_type != MBEDTLS_MD_NONE &&
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entry->md_type != md_type )
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{
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entry++;
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}
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return entry->size;
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}
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/* Get block size from MD type */
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unsigned char mbedtls_hash_info_get_block_size( mbedtls_md_type_t md_type )
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{
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const hash_entry *entry = hash_table;
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while( entry->md_type != MBEDTLS_MD_NONE &&
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entry->md_type != md_type )
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{
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entry++;
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}
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return entry->block_size;
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}
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/* Get PSA from MD */
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psa_algorithm_t mbedtls_hash_info_psa_from_md( mbedtls_md_type_t md_type )
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{
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const hash_entry *entry = hash_table;
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while( entry->md_type != MBEDTLS_MD_NONE &&
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entry->md_type != md_type )
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{
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entry++;
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}
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return entry->psa_alg;
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}
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/* Get MD from PSA */
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mbedtls_md_type_t mbedtls_hash_info_md_from_psa( psa_algorithm_t psa_alg )
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{
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const hash_entry *entry = hash_table;
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while( entry->md_type != MBEDTLS_MD_NONE &&
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entry->psa_alg != psa_alg )
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{
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entry++;
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}
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return entry->md_type;
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}
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