1 /*
2 * Hash information that's independent from the crypto implementation.
3 *
4 * (See the corresponding header file for usage notes.)
5 */
6 /*
7 * Copyright The Mbed TLS Contributors
8 * SPDX-License-Identifier: Apache-2.0
9 *
10 * Licensed under the Apache License, Version 2.0 (the "License"); you may
11 * not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
13 *
14 * http://www.apache.org/licenses/LICENSE-2.0
15 *
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
18 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
21 */
22
23 #include "hash_info.h"
24 #include "mbedtls/legacy_or_psa.h"
25 #include "mbedtls/error.h"
26
27 typedef struct
28 {
29 psa_algorithm_t psa_alg;
30 mbedtls_md_type_t md_type;
31 unsigned char size;
32 unsigned char block_size;
33 } hash_entry;
34
35 static const hash_entry hash_table[] = {
36 #if defined(MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA)
37 { PSA_ALG_MD5, MBEDTLS_MD_MD5, 16, 64 },
38 #endif
39 #if defined(MBEDTLS_HAS_ALG_RIPEMD160_VIA_LOWLEVEL_OR_PSA)
40 { PSA_ALG_RIPEMD160, MBEDTLS_MD_RIPEMD160, 20, 64 },
41 #endif
42 #if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_LOWLEVEL_OR_PSA)
43 { PSA_ALG_SHA_1, MBEDTLS_MD_SHA1, 20, 64 },
44 #endif
45 #if defined(MBEDTLS_HAS_ALG_SHA_224_VIA_LOWLEVEL_OR_PSA)
46 { PSA_ALG_SHA_224, MBEDTLS_MD_SHA224, 28, 64 },
47 #endif
48 #if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_LOWLEVEL_OR_PSA)
49 { PSA_ALG_SHA_256, MBEDTLS_MD_SHA256, 32, 64 },
50 #endif
51 #if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_LOWLEVEL_OR_PSA)
52 { PSA_ALG_SHA_384, MBEDTLS_MD_SHA384, 48, 128 },
53 #endif
54 #if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_LOWLEVEL_OR_PSA)
55 { PSA_ALG_SHA_512, MBEDTLS_MD_SHA512, 64, 128 },
56 #endif
57 { PSA_ALG_NONE, MBEDTLS_MD_NONE, 0, 0 },
58 };
59
60 /* Get size from MD type */
mbedtls_hash_info_get_size(mbedtls_md_type_t md_type)61 unsigned char mbedtls_hash_info_get_size( mbedtls_md_type_t md_type )
62 {
63 const hash_entry *entry = hash_table;
64 while( entry->md_type != MBEDTLS_MD_NONE &&
65 entry->md_type != md_type )
66 {
67 entry++;
68 }
69
70 return entry->size;
71 }
72
73 /* Get block size from MD type */
mbedtls_hash_info_get_block_size(mbedtls_md_type_t md_type)74 unsigned char mbedtls_hash_info_get_block_size( mbedtls_md_type_t md_type )
75 {
76 const hash_entry *entry = hash_table;
77 while( entry->md_type != MBEDTLS_MD_NONE &&
78 entry->md_type != md_type )
79 {
80 entry++;
81 }
82
83 return entry->block_size;
84 }
85
86 /* Get PSA from MD */
mbedtls_hash_info_psa_from_md(mbedtls_md_type_t md_type)87 psa_algorithm_t mbedtls_hash_info_psa_from_md( mbedtls_md_type_t md_type )
88 {
89 const hash_entry *entry = hash_table;
90 while( entry->md_type != MBEDTLS_MD_NONE &&
91 entry->md_type != md_type )
92 {
93 entry++;
94 }
95
96 return entry->psa_alg;
97 }
98
99 /* Get MD from PSA */
mbedtls_hash_info_md_from_psa(psa_algorithm_t psa_alg)100 mbedtls_md_type_t mbedtls_hash_info_md_from_psa( psa_algorithm_t psa_alg )
101 {
102 const hash_entry *entry = hash_table;
103 while( entry->md_type != MBEDTLS_MD_NONE &&
104 entry->psa_alg != psa_alg )
105 {
106 entry++;
107 }
108
109 return entry->md_type;
110 }
111
mbedtls_md_error_from_psa(psa_status_t status)112 int mbedtls_md_error_from_psa( psa_status_t status )
113 {
114 switch( status )
115 {
116 case PSA_SUCCESS:
117 return( 0 );
118 case PSA_ERROR_NOT_SUPPORTED:
119 return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
120 case PSA_ERROR_INVALID_ARGUMENT:
121 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
122 case PSA_ERROR_INSUFFICIENT_MEMORY:
123 return( MBEDTLS_ERR_MD_ALLOC_FAILED );
124 default:
125 return( MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED );
126 }
127 }
128
