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