438 lines
14 KiB
C
438 lines
14 KiB
C
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/*
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* PSA hashing layer on top of Mbed TLS software crypto
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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 "common.h"
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#if defined(MBEDTLS_PSA_CRYPTO_C)
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#include <psa/crypto.h>
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#include "psa_crypto_core.h"
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#include "psa_crypto_hash.h"
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#include <mbedtls/error.h>
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#include <string.h>
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psa_status_t mbedtls_psa_hash_compute(
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psa_algorithm_t alg,
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const uint8_t *input,
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size_t input_length,
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uint8_t *hash,
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size_t hash_size,
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size_t *hash_length)
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{
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mbedtls_psa_hash_operation_t operation = MBEDTLS_PSA_HASH_OPERATION_INIT;
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psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
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*hash_length = hash_size;
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status = mbedtls_psa_hash_setup( &operation, alg );
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if( status != PSA_SUCCESS )
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goto exit;
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status = mbedtls_psa_hash_update( &operation, input, input_length );
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if( status != PSA_SUCCESS )
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goto exit;
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status = mbedtls_psa_hash_finish( &operation, hash, hash_size, hash_length );
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if( status != PSA_SUCCESS )
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goto exit;
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exit:
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if( status == PSA_SUCCESS )
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status = mbedtls_psa_hash_abort( &operation );
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else
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mbedtls_psa_hash_abort( &operation );
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return( status );
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}
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psa_status_t mbedtls_psa_hash_setup(
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mbedtls_psa_hash_operation_t *operation,
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psa_algorithm_t alg )
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{
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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/* A context must be freshly initialized before it can be set up. */
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if( operation->alg != 0 )
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{
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return( PSA_ERROR_BAD_STATE );
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}
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switch( alg )
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{
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD2)
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case PSA_ALG_MD2:
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mbedtls_md2_init( &operation->ctx.md2 );
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ret = mbedtls_md2_starts_ret( &operation->ctx.md2 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD4)
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case PSA_ALG_MD4:
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mbedtls_md4_init( &operation->ctx.md4 );
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ret = mbedtls_md4_starts_ret( &operation->ctx.md4 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD5)
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case PSA_ALG_MD5:
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mbedtls_md5_init( &operation->ctx.md5 );
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ret = mbedtls_md5_starts_ret( &operation->ctx.md5 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160)
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case PSA_ALG_RIPEMD160:
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mbedtls_ripemd160_init( &operation->ctx.ripemd160 );
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ret = mbedtls_ripemd160_starts_ret( &operation->ctx.ripemd160 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_1)
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case PSA_ALG_SHA_1:
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mbedtls_sha1_init( &operation->ctx.sha1 );
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ret = mbedtls_sha1_starts_ret( &operation->ctx.sha1 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_224)
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case PSA_ALG_SHA_224:
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mbedtls_sha256_init( &operation->ctx.sha256 );
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ret = mbedtls_sha256_starts_ret( &operation->ctx.sha256, 1 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_256)
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case PSA_ALG_SHA_256:
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mbedtls_sha256_init( &operation->ctx.sha256 );
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ret = mbedtls_sha256_starts_ret( &operation->ctx.sha256, 0 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_384)
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case PSA_ALG_SHA_384:
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mbedtls_sha512_init( &operation->ctx.sha512 );
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ret = mbedtls_sha512_starts_ret( &operation->ctx.sha512, 1 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_512)
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case PSA_ALG_SHA_512:
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mbedtls_sha512_init( &operation->ctx.sha512 );
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ret = mbedtls_sha512_starts_ret( &operation->ctx.sha512, 0 );
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break;
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#endif
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default:
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return( PSA_ALG_IS_HASH( alg ) ?
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PSA_ERROR_NOT_SUPPORTED :
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PSA_ERROR_INVALID_ARGUMENT );
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}
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if( ret == 0 )
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operation->alg = alg;
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else
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mbedtls_psa_hash_abort( operation );
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return( mbedtls_to_psa_error( ret ) );
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}
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psa_status_t mbedtls_psa_hash_clone(
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const mbedtls_psa_hash_operation_t *source_operation,
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mbedtls_psa_hash_operation_t *target_operation )
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{
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switch( source_operation->alg )
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{
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case 0:
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return( PSA_ERROR_BAD_STATE );
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD2)
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case PSA_ALG_MD2:
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mbedtls_md2_clone( &target_operation->ctx.md2,
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&source_operation->ctx.md2 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD4)
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case PSA_ALG_MD4:
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mbedtls_md4_clone( &target_operation->ctx.md4,
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&source_operation->ctx.md4 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD5)
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case PSA_ALG_MD5:
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mbedtls_md5_clone( &target_operation->ctx.md5,
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&source_operation->ctx.md5 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160)
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case PSA_ALG_RIPEMD160:
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mbedtls_ripemd160_clone( &target_operation->ctx.ripemd160,
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&source_operation->ctx.ripemd160 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_1)
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case PSA_ALG_SHA_1:
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mbedtls_sha1_clone( &target_operation->ctx.sha1,
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&source_operation->ctx.sha1 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_224)
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case PSA_ALG_SHA_224:
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mbedtls_sha256_clone( &target_operation->ctx.sha256,
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&source_operation->ctx.sha256 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_256)
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case PSA_ALG_SHA_256:
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mbedtls_sha256_clone( &target_operation->ctx.sha256,
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&source_operation->ctx.sha256 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_384)
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case PSA_ALG_SHA_384:
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mbedtls_sha512_clone( &target_operation->ctx.sha512,
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&source_operation->ctx.sha512 );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_512)
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case PSA_ALG_SHA_512:
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mbedtls_sha512_clone( &target_operation->ctx.sha512,
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&source_operation->ctx.sha512 );
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break;
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#endif
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default:
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return( PSA_ERROR_NOT_SUPPORTED );
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}
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target_operation->alg = source_operation->alg;
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return( PSA_SUCCESS );
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}
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psa_status_t mbedtls_psa_hash_update(
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mbedtls_psa_hash_operation_t *operation,
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const uint8_t *input,
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size_t input_length )
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{
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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switch( operation->alg )
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{
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD2)
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case PSA_ALG_MD2:
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ret = mbedtls_md2_update_ret( &operation->ctx.md2,
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input, input_length );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD4)
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case PSA_ALG_MD4:
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ret = mbedtls_md4_update_ret( &operation->ctx.md4,
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input, input_length );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD5)
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case PSA_ALG_MD5:
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ret = mbedtls_md5_update_ret( &operation->ctx.md5,
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input, input_length );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160)
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case PSA_ALG_RIPEMD160:
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ret = mbedtls_ripemd160_update_ret( &operation->ctx.ripemd160,
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input, input_length );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_1)
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case PSA_ALG_SHA_1:
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ret = mbedtls_sha1_update_ret( &operation->ctx.sha1,
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input, input_length );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_224)
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case PSA_ALG_SHA_224:
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ret = mbedtls_sha256_update_ret( &operation->ctx.sha256,
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input, input_length );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_256)
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case PSA_ALG_SHA_256:
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ret = mbedtls_sha256_update_ret( &operation->ctx.sha256,
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input, input_length );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_384)
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case PSA_ALG_SHA_384:
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ret = mbedtls_sha512_update_ret( &operation->ctx.sha512,
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input, input_length );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_512)
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case PSA_ALG_SHA_512:
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ret = mbedtls_sha512_update_ret( &operation->ctx.sha512,
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input, input_length );
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break;
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#endif
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default:
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(void)input;
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return( PSA_ERROR_BAD_STATE );
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}
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if( ret != 0 )
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mbedtls_psa_hash_abort( operation );
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return( mbedtls_to_psa_error( ret ) );
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}
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psa_status_t mbedtls_psa_hash_finish(
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mbedtls_psa_hash_operation_t *operation,
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uint8_t *hash,
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size_t hash_size,
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size_t *hash_length )
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{
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psa_status_t status;
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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size_t actual_hash_length = PSA_HASH_LENGTH( operation->alg );
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/* Fill the output buffer with something that isn't a valid hash
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* (barring an attack on the hash and deliberately-crafted input),
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* in case the caller doesn't check the return status properly. */
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*hash_length = hash_size;
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/* If hash_size is 0 then hash may be NULL and then the
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* call to memset would have undefined behavior. */
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if( hash_size != 0 )
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memset( hash, '!', hash_size );
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if( hash_size < actual_hash_length )
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{
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status = PSA_ERROR_BUFFER_TOO_SMALL;
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goto exit;
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}
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switch( operation->alg )
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{
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD2)
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case PSA_ALG_MD2:
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ret = mbedtls_md2_finish_ret( &operation->ctx.md2, hash );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD4)
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case PSA_ALG_MD4:
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ret = mbedtls_md4_finish_ret( &operation->ctx.md4, hash );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD5)
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case PSA_ALG_MD5:
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ret = mbedtls_md5_finish_ret( &operation->ctx.md5, hash );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160)
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case PSA_ALG_RIPEMD160:
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ret = mbedtls_ripemd160_finish_ret( &operation->ctx.ripemd160, hash );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_1)
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case PSA_ALG_SHA_1:
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ret = mbedtls_sha1_finish_ret( &operation->ctx.sha1, hash );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_224)
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case PSA_ALG_SHA_224:
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ret = mbedtls_sha256_finish_ret( &operation->ctx.sha256, hash );
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_256)
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||
|
|
case PSA_ALG_SHA_256:
|
||
|
|
ret = mbedtls_sha256_finish_ret( &operation->ctx.sha256, hash );
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_384)
|
||
|
|
case PSA_ALG_SHA_384:
|
||
|
|
ret = mbedtls_sha512_finish_ret( &operation->ctx.sha512, hash );
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_512)
|
||
|
|
case PSA_ALG_SHA_512:
|
||
|
|
ret = mbedtls_sha512_finish_ret( &operation->ctx.sha512, hash );
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
default:
|
||
|
|
return( PSA_ERROR_BAD_STATE );
|
||
|
|
}
|
||
|
|
status = mbedtls_to_psa_error( ret );
|
||
|
|
|
||
|
|
exit:
|
||
|
|
if( status == PSA_SUCCESS )
|
||
|
|
{
|
||
|
|
*hash_length = actual_hash_length;
|
||
|
|
return( mbedtls_psa_hash_abort( operation ) );
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
mbedtls_psa_hash_abort( operation );
|
||
|
|
return( status );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
psa_status_t mbedtls_psa_hash_abort(
|
||
|
|
mbedtls_psa_hash_operation_t *operation )
|
||
|
|
{
|
||
|
|
switch( operation->alg )
|
||
|
|
{
|
||
|
|
case 0:
|
||
|
|
/* The object has (apparently) been initialized but it is not
|
||
|
|
* in use. It's ok to call abort on such an object, and there's
|
||
|
|
* nothing to do. */
|
||
|
|
break;
|
||
|
|
#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD2)
|
||
|
|
case PSA_ALG_MD2:
|
||
|
|
mbedtls_md2_free( &operation->ctx.md2 );
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD4)
|
||
|
|
case PSA_ALG_MD4:
|
||
|
|
mbedtls_md4_free( &operation->ctx.md4 );
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD5)
|
||
|
|
case PSA_ALG_MD5:
|
||
|
|
mbedtls_md5_free( &operation->ctx.md5 );
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
#if defined(MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160)
|
||
|
|
case PSA_ALG_RIPEMD160:
|
||
|
|
mbedtls_ripemd160_free( &operation->ctx.ripemd160 );
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_1)
|
||
|
|
case PSA_ALG_SHA_1:
|
||
|
|
mbedtls_sha1_free( &operation->ctx.sha1 );
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_224)
|
||
|
|
case PSA_ALG_SHA_224:
|
||
|
|
mbedtls_sha256_free( &operation->ctx.sha256 );
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_256)
|
||
|
|
case PSA_ALG_SHA_256:
|
||
|
|
mbedtls_sha256_free( &operation->ctx.sha256 );
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_384)
|
||
|
|
case PSA_ALG_SHA_384:
|
||
|
|
mbedtls_sha512_free( &operation->ctx.sha512 );
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_512)
|
||
|
|
case PSA_ALG_SHA_512:
|
||
|
|
mbedtls_sha512_free( &operation->ctx.sha512 );
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
default:
|
||
|
|
return( PSA_ERROR_BAD_STATE );
|
||
|
|
}
|
||
|
|
operation->alg = 0;
|
||
|
|
return( PSA_SUCCESS );
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* MBEDTLS_PSA_CRYPTO_C */
|