Kenji Arai / mbed-os_TYBLE16

mbed-os5 only for TYBLE16

Dependents:   TYBLE16_simple_data_logger TYBLE16_MP3_Air

features/mbedtls/mbed-crypto/src/md.c@0:5b88d5760320, 2019-12-17 (annotated)

Committer:
kenjiArai
Date:
Tue Dec 17 23:23:45 2019 +0000
Revision:
0:5b88d5760320
Child:
1:9db0e321a9f4
mbed-os5 only for TYBLE16

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kenjiArai 0:5b88d5760320 1 /**
kenjiArai 0:5b88d5760320 2 * \file mbedtls_md.c
kenjiArai 0:5b88d5760320 3 *
kenjiArai 0:5b88d5760320 4 * \brief Generic message digest wrapper for mbed TLS
kenjiArai 0:5b88d5760320 5 *
kenjiArai 0:5b88d5760320 6 * \author Adriaan de Jong <dejong@fox-it.com>
kenjiArai 0:5b88d5760320 7 *
kenjiArai 0:5b88d5760320 8 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
kenjiArai 0:5b88d5760320 9 * SPDX-License-Identifier: Apache-2.0
kenjiArai 0:5b88d5760320 10 *
kenjiArai 0:5b88d5760320 11 * Licensed under the Apache License, Version 2.0 (the "License"); you may
kenjiArai 0:5b88d5760320 12 * not use this file except in compliance with the License.
kenjiArai 0:5b88d5760320 13 * You may obtain a copy of the License at
kenjiArai 0:5b88d5760320 14 *
kenjiArai 0:5b88d5760320 15 * http://www.apache.org/licenses/LICENSE-2.0
kenjiArai 0:5b88d5760320 16 *
kenjiArai 0:5b88d5760320 17 * Unless required by applicable law or agreed to in writing, software
kenjiArai 0:5b88d5760320 18 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
kenjiArai 0:5b88d5760320 19 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kenjiArai 0:5b88d5760320 20 * See the License for the specific language governing permissions and
kenjiArai 0:5b88d5760320 21 * limitations under the License.
kenjiArai 0:5b88d5760320 22 *
kenjiArai 0:5b88d5760320 23 * This file is part of mbed TLS (https://tls.mbed.org)
kenjiArai 0:5b88d5760320 24 */
kenjiArai 0:5b88d5760320 25
kenjiArai 0:5b88d5760320 26 #if !defined(MBEDTLS_CONFIG_FILE)
kenjiArai 0:5b88d5760320 27 #include "mbedtls/config.h"
kenjiArai 0:5b88d5760320 28 #else
kenjiArai 0:5b88d5760320 29 #include MBEDTLS_CONFIG_FILE
kenjiArai 0:5b88d5760320 30 #endif
kenjiArai 0:5b88d5760320 31
kenjiArai 0:5b88d5760320 32 #if defined(MBEDTLS_MD_C)
kenjiArai 0:5b88d5760320 33
kenjiArai 0:5b88d5760320 34 #include "mbedtls/md.h"
kenjiArai 0:5b88d5760320 35 #include "mbedtls/md_internal.h"
kenjiArai 0:5b88d5760320 36 #include "mbedtls/platform_util.h"
kenjiArai 0:5b88d5760320 37
kenjiArai 0:5b88d5760320 38 #if defined(MBEDTLS_PLATFORM_C)
kenjiArai 0:5b88d5760320 39 #include "mbedtls/platform.h"
kenjiArai 0:5b88d5760320 40 #else
kenjiArai 0:5b88d5760320 41 #include <stdlib.h>
kenjiArai 0:5b88d5760320 42 #define mbedtls_calloc calloc
kenjiArai 0:5b88d5760320 43 #define mbedtls_free free
kenjiArai 0:5b88d5760320 44 #endif
kenjiArai 0:5b88d5760320 45
kenjiArai 0:5b88d5760320 46 #include <string.h>
kenjiArai 0:5b88d5760320 47
kenjiArai 0:5b88d5760320 48 #if defined(MBEDTLS_FS_IO)
kenjiArai 0:5b88d5760320 49 #include <stdio.h>
kenjiArai 0:5b88d5760320 50 #endif
kenjiArai 0:5b88d5760320 51
kenjiArai 0:5b88d5760320 52 /*
kenjiArai 0:5b88d5760320 53 * Reminder: update profiles in Mbed TLS's x509_crt.c when adding a new hash!
kenjiArai 0:5b88d5760320 54 */
kenjiArai 0:5b88d5760320 55 static const int supported_digests[] = {
kenjiArai 0:5b88d5760320 56
kenjiArai 0:5b88d5760320 57 #if defined(MBEDTLS_SHA512_C)
kenjiArai 0:5b88d5760320 58 MBEDTLS_MD_SHA512,
kenjiArai 0:5b88d5760320 59 MBEDTLS_MD_SHA384,
kenjiArai 0:5b88d5760320 60 #endif
kenjiArai 0:5b88d5760320 61
kenjiArai 0:5b88d5760320 62 #if defined(MBEDTLS_SHA256_C)
kenjiArai 0:5b88d5760320 63 MBEDTLS_MD_SHA256,
kenjiArai 0:5b88d5760320 64 MBEDTLS_MD_SHA224,
kenjiArai 0:5b88d5760320 65 #endif
kenjiArai 0:5b88d5760320 66
kenjiArai 0:5b88d5760320 67 #if defined(MBEDTLS_SHA1_C)
kenjiArai 0:5b88d5760320 68 MBEDTLS_MD_SHA1,
kenjiArai 0:5b88d5760320 69 #endif
kenjiArai 0:5b88d5760320 70
kenjiArai 0:5b88d5760320 71 #if defined(MBEDTLS_RIPEMD160_C)
kenjiArai 0:5b88d5760320 72 MBEDTLS_MD_RIPEMD160,
kenjiArai 0:5b88d5760320 73 #endif
kenjiArai 0:5b88d5760320 74
kenjiArai 0:5b88d5760320 75 #if defined(MBEDTLS_MD5_C)
kenjiArai 0:5b88d5760320 76 MBEDTLS_MD_MD5,
kenjiArai 0:5b88d5760320 77 #endif
kenjiArai 0:5b88d5760320 78
kenjiArai 0:5b88d5760320 79 #if defined(MBEDTLS_MD4_C)
kenjiArai 0:5b88d5760320 80 MBEDTLS_MD_MD4,
kenjiArai 0:5b88d5760320 81 #endif
kenjiArai 0:5b88d5760320 82
kenjiArai 0:5b88d5760320 83 #if defined(MBEDTLS_MD2_C)
kenjiArai 0:5b88d5760320 84 MBEDTLS_MD_MD2,
kenjiArai 0:5b88d5760320 85 #endif
kenjiArai 0:5b88d5760320 86
kenjiArai 0:5b88d5760320 87 MBEDTLS_MD_NONE
kenjiArai 0:5b88d5760320 88 };
kenjiArai 0:5b88d5760320 89
kenjiArai 0:5b88d5760320 90 const int *mbedtls_md_list( void )
kenjiArai 0:5b88d5760320 91 {
kenjiArai 0:5b88d5760320 92 return( supported_digests );
kenjiArai 0:5b88d5760320 93 }
kenjiArai 0:5b88d5760320 94
kenjiArai 0:5b88d5760320 95 const mbedtls_md_info_t *mbedtls_md_info_from_string( const char *md_name )
kenjiArai 0:5b88d5760320 96 {
kenjiArai 0:5b88d5760320 97 if( NULL == md_name )
kenjiArai 0:5b88d5760320 98 return( NULL );
kenjiArai 0:5b88d5760320 99
kenjiArai 0:5b88d5760320 100 /* Get the appropriate digest information */
kenjiArai 0:5b88d5760320 101 #if defined(MBEDTLS_MD2_C)
kenjiArai 0:5b88d5760320 102 if( !strcmp( "MD2", md_name ) )
kenjiArai 0:5b88d5760320 103 return mbedtls_md_info_from_type( MBEDTLS_MD_MD2 );
kenjiArai 0:5b88d5760320 104 #endif
kenjiArai 0:5b88d5760320 105 #if defined(MBEDTLS_MD4_C)
kenjiArai 0:5b88d5760320 106 if( !strcmp( "MD4", md_name ) )
kenjiArai 0:5b88d5760320 107 return mbedtls_md_info_from_type( MBEDTLS_MD_MD4 );
kenjiArai 0:5b88d5760320 108 #endif
kenjiArai 0:5b88d5760320 109 #if defined(MBEDTLS_MD5_C)
kenjiArai 0:5b88d5760320 110 if( !strcmp( "MD5", md_name ) )
kenjiArai 0:5b88d5760320 111 return mbedtls_md_info_from_type( MBEDTLS_MD_MD5 );
kenjiArai 0:5b88d5760320 112 #endif
kenjiArai 0:5b88d5760320 113 #if defined(MBEDTLS_RIPEMD160_C)
kenjiArai 0:5b88d5760320 114 if( !strcmp( "RIPEMD160", md_name ) )
kenjiArai 0:5b88d5760320 115 return mbedtls_md_info_from_type( MBEDTLS_MD_RIPEMD160 );
kenjiArai 0:5b88d5760320 116 #endif
kenjiArai 0:5b88d5760320 117 #if defined(MBEDTLS_SHA1_C)
kenjiArai 0:5b88d5760320 118 if( !strcmp( "SHA1", md_name ) || !strcmp( "SHA", md_name ) )
kenjiArai 0:5b88d5760320 119 return mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 );
kenjiArai 0:5b88d5760320 120 #endif
kenjiArai 0:5b88d5760320 121 #if defined(MBEDTLS_SHA256_C)
kenjiArai 0:5b88d5760320 122 if( !strcmp( "SHA224", md_name ) )
kenjiArai 0:5b88d5760320 123 return mbedtls_md_info_from_type( MBEDTLS_MD_SHA224 );
kenjiArai 0:5b88d5760320 124 if( !strcmp( "SHA256", md_name ) )
kenjiArai 0:5b88d5760320 125 return mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 );
kenjiArai 0:5b88d5760320 126 #endif
kenjiArai 0:5b88d5760320 127 #if defined(MBEDTLS_SHA512_C)
kenjiArai 0:5b88d5760320 128 if( !strcmp( "SHA384", md_name ) )
kenjiArai 0:5b88d5760320 129 return mbedtls_md_info_from_type( MBEDTLS_MD_SHA384 );
kenjiArai 0:5b88d5760320 130 if( !strcmp( "SHA512", md_name ) )
kenjiArai 0:5b88d5760320 131 return mbedtls_md_info_from_type( MBEDTLS_MD_SHA512 );
kenjiArai 0:5b88d5760320 132 #endif
kenjiArai 0:5b88d5760320 133 return( NULL );
kenjiArai 0:5b88d5760320 134 }
kenjiArai 0:5b88d5760320 135
kenjiArai 0:5b88d5760320 136 const mbedtls_md_info_t *mbedtls_md_info_from_type( mbedtls_md_type_t md_type )
kenjiArai 0:5b88d5760320 137 {
kenjiArai 0:5b88d5760320 138 switch( md_type )
kenjiArai 0:5b88d5760320 139 {
kenjiArai 0:5b88d5760320 140 #if defined(MBEDTLS_MD2_C)
kenjiArai 0:5b88d5760320 141 case MBEDTLS_MD_MD2:
kenjiArai 0:5b88d5760320 142 return( &mbedtls_md2_info );
kenjiArai 0:5b88d5760320 143 #endif
kenjiArai 0:5b88d5760320 144 #if defined(MBEDTLS_MD4_C)
kenjiArai 0:5b88d5760320 145 case MBEDTLS_MD_MD4:
kenjiArai 0:5b88d5760320 146 return( &mbedtls_md4_info );
kenjiArai 0:5b88d5760320 147 #endif
kenjiArai 0:5b88d5760320 148 #if defined(MBEDTLS_MD5_C)
kenjiArai 0:5b88d5760320 149 case MBEDTLS_MD_MD5:
kenjiArai 0:5b88d5760320 150 return( &mbedtls_md5_info );
kenjiArai 0:5b88d5760320 151 #endif
kenjiArai 0:5b88d5760320 152 #if defined(MBEDTLS_RIPEMD160_C)
kenjiArai 0:5b88d5760320 153 case MBEDTLS_MD_RIPEMD160:
kenjiArai 0:5b88d5760320 154 return( &mbedtls_ripemd160_info );
kenjiArai 0:5b88d5760320 155 #endif
kenjiArai 0:5b88d5760320 156 #if defined(MBEDTLS_SHA1_C)
kenjiArai 0:5b88d5760320 157 case MBEDTLS_MD_SHA1:
kenjiArai 0:5b88d5760320 158 return( &mbedtls_sha1_info );
kenjiArai 0:5b88d5760320 159 #endif
kenjiArai 0:5b88d5760320 160 #if defined(MBEDTLS_SHA256_C)
kenjiArai 0:5b88d5760320 161 case MBEDTLS_MD_SHA224:
kenjiArai 0:5b88d5760320 162 return( &mbedtls_sha224_info );
kenjiArai 0:5b88d5760320 163 case MBEDTLS_MD_SHA256:
kenjiArai 0:5b88d5760320 164 return( &mbedtls_sha256_info );
kenjiArai 0:5b88d5760320 165 #endif
kenjiArai 0:5b88d5760320 166 #if defined(MBEDTLS_SHA512_C)
kenjiArai 0:5b88d5760320 167 case MBEDTLS_MD_SHA384:
kenjiArai 0:5b88d5760320 168 return( &mbedtls_sha384_info );
kenjiArai 0:5b88d5760320 169 case MBEDTLS_MD_SHA512:
kenjiArai 0:5b88d5760320 170 return( &mbedtls_sha512_info );
kenjiArai 0:5b88d5760320 171 #endif
kenjiArai 0:5b88d5760320 172 default:
kenjiArai 0:5b88d5760320 173 return( NULL );
kenjiArai 0:5b88d5760320 174 }
kenjiArai 0:5b88d5760320 175 }
kenjiArai 0:5b88d5760320 176
kenjiArai 0:5b88d5760320 177 void mbedtls_md_init( mbedtls_md_context_t *ctx )
kenjiArai 0:5b88d5760320 178 {
kenjiArai 0:5b88d5760320 179 memset( ctx, 0, sizeof( mbedtls_md_context_t ) );
kenjiArai 0:5b88d5760320 180 }
kenjiArai 0:5b88d5760320 181
kenjiArai 0:5b88d5760320 182 void mbedtls_md_free( mbedtls_md_context_t *ctx )
kenjiArai 0:5b88d5760320 183 {
kenjiArai 0:5b88d5760320 184 if( ctx == NULL || ctx->md_info == NULL )
kenjiArai 0:5b88d5760320 185 return;
kenjiArai 0:5b88d5760320 186
kenjiArai 0:5b88d5760320 187 if( ctx->md_ctx != NULL )
kenjiArai 0:5b88d5760320 188 ctx->md_info->ctx_free_func( ctx->md_ctx );
kenjiArai 0:5b88d5760320 189
kenjiArai 0:5b88d5760320 190 if( ctx->hmac_ctx != NULL )
kenjiArai 0:5b88d5760320 191 {
kenjiArai 0:5b88d5760320 192 mbedtls_platform_zeroize( ctx->hmac_ctx,
kenjiArai 0:5b88d5760320 193 2 * ctx->md_info->block_size );
kenjiArai 0:5b88d5760320 194 mbedtls_free( ctx->hmac_ctx );
kenjiArai 0:5b88d5760320 195 }
kenjiArai 0:5b88d5760320 196
kenjiArai 0:5b88d5760320 197 mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md_context_t ) );
kenjiArai 0:5b88d5760320 198 }
kenjiArai 0:5b88d5760320 199
kenjiArai 0:5b88d5760320 200 int mbedtls_md_clone( mbedtls_md_context_t *dst,
kenjiArai 0:5b88d5760320 201 const mbedtls_md_context_t *src )
kenjiArai 0:5b88d5760320 202 {
kenjiArai 0:5b88d5760320 203 if( dst == NULL || dst->md_info == NULL ||
kenjiArai 0:5b88d5760320 204 src == NULL || src->md_info == NULL ||
kenjiArai 0:5b88d5760320 205 dst->md_info != src->md_info )
kenjiArai 0:5b88d5760320 206 {
kenjiArai 0:5b88d5760320 207 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
kenjiArai 0:5b88d5760320 208 }
kenjiArai 0:5b88d5760320 209
kenjiArai 0:5b88d5760320 210 dst->md_info->clone_func( dst->md_ctx, src->md_ctx );
kenjiArai 0:5b88d5760320 211
kenjiArai 0:5b88d5760320 212 return( 0 );
kenjiArai 0:5b88d5760320 213 }
kenjiArai 0:5b88d5760320 214
kenjiArai 0:5b88d5760320 215 #if ! defined(MBEDTLS_DEPRECATED_REMOVED)
kenjiArai 0:5b88d5760320 216 int mbedtls_md_init_ctx( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info )
kenjiArai 0:5b88d5760320 217 {
kenjiArai 0:5b88d5760320 218 return mbedtls_md_setup( ctx, md_info, 1 );
kenjiArai 0:5b88d5760320 219 }
kenjiArai 0:5b88d5760320 220 #endif
kenjiArai 0:5b88d5760320 221
kenjiArai 0:5b88d5760320 222 int mbedtls_md_setup( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac )
kenjiArai 0:5b88d5760320 223 {
kenjiArai 0:5b88d5760320 224 if( md_info == NULL || ctx == NULL )
kenjiArai 0:5b88d5760320 225 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
kenjiArai 0:5b88d5760320 226
kenjiArai 0:5b88d5760320 227 if( ( ctx->md_ctx = md_info->ctx_alloc_func() ) == NULL )
kenjiArai 0:5b88d5760320 228 return( MBEDTLS_ERR_MD_ALLOC_FAILED );
kenjiArai 0:5b88d5760320 229
kenjiArai 0:5b88d5760320 230 if( hmac != 0 )
kenjiArai 0:5b88d5760320 231 {
kenjiArai 0:5b88d5760320 232 ctx->hmac_ctx = mbedtls_calloc( 2, md_info->block_size );
kenjiArai 0:5b88d5760320 233 if( ctx->hmac_ctx == NULL )
kenjiArai 0:5b88d5760320 234 {
kenjiArai 0:5b88d5760320 235 md_info->ctx_free_func( ctx->md_ctx );
kenjiArai 0:5b88d5760320 236 return( MBEDTLS_ERR_MD_ALLOC_FAILED );
kenjiArai 0:5b88d5760320 237 }
kenjiArai 0:5b88d5760320 238 }
kenjiArai 0:5b88d5760320 239
kenjiArai 0:5b88d5760320 240 ctx->md_info = md_info;
kenjiArai 0:5b88d5760320 241
kenjiArai 0:5b88d5760320 242 return( 0 );
kenjiArai 0:5b88d5760320 243 }
kenjiArai 0:5b88d5760320 244
kenjiArai 0:5b88d5760320 245 int mbedtls_md_starts( mbedtls_md_context_t *ctx )
kenjiArai 0:5b88d5760320 246 {
kenjiArai 0:5b88d5760320 247 if( ctx == NULL || ctx->md_info == NULL )
kenjiArai 0:5b88d5760320 248 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
kenjiArai 0:5b88d5760320 249
kenjiArai 0:5b88d5760320 250 return( ctx->md_info->starts_func( ctx->md_ctx ) );
kenjiArai 0:5b88d5760320 251 }
kenjiArai 0:5b88d5760320 252
kenjiArai 0:5b88d5760320 253 int mbedtls_md_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen )
kenjiArai 0:5b88d5760320 254 {
kenjiArai 0:5b88d5760320 255 if( ctx == NULL || ctx->md_info == NULL )
kenjiArai 0:5b88d5760320 256 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
kenjiArai 0:5b88d5760320 257
kenjiArai 0:5b88d5760320 258 return( ctx->md_info->update_func( ctx->md_ctx, input, ilen ) );
kenjiArai 0:5b88d5760320 259 }
kenjiArai 0:5b88d5760320 260
kenjiArai 0:5b88d5760320 261 int mbedtls_md_finish( mbedtls_md_context_t *ctx, unsigned char *output )
kenjiArai 0:5b88d5760320 262 {
kenjiArai 0:5b88d5760320 263 if( ctx == NULL || ctx->md_info == NULL )
kenjiArai 0:5b88d5760320 264 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
kenjiArai 0:5b88d5760320 265
kenjiArai 0:5b88d5760320 266 return( ctx->md_info->finish_func( ctx->md_ctx, output ) );
kenjiArai 0:5b88d5760320 267 }
kenjiArai 0:5b88d5760320 268
kenjiArai 0:5b88d5760320 269 int mbedtls_md( const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen,
kenjiArai 0:5b88d5760320 270 unsigned char *output )
kenjiArai 0:5b88d5760320 271 {
kenjiArai 0:5b88d5760320 272 if( md_info == NULL )
kenjiArai 0:5b88d5760320 273 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
kenjiArai 0:5b88d5760320 274
kenjiArai 0:5b88d5760320 275 return( md_info->digest_func( input, ilen, output ) );
kenjiArai 0:5b88d5760320 276 }
kenjiArai 0:5b88d5760320 277
kenjiArai 0:5b88d5760320 278 #if defined(MBEDTLS_FS_IO)
kenjiArai 0:5b88d5760320 279 int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path, unsigned char *output )
kenjiArai 0:5b88d5760320 280 {
kenjiArai 0:5b88d5760320 281 int ret;
kenjiArai 0:5b88d5760320 282 FILE *f;
kenjiArai 0:5b88d5760320 283 size_t n;
kenjiArai 0:5b88d5760320 284 mbedtls_md_context_t ctx;
kenjiArai 0:5b88d5760320 285 unsigned char buf[1024];
kenjiArai 0:5b88d5760320 286
kenjiArai 0:5b88d5760320 287 if( md_info == NULL )
kenjiArai 0:5b88d5760320 288 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
kenjiArai 0:5b88d5760320 289
kenjiArai 0:5b88d5760320 290 if( ( f = fopen( path, "rb" ) ) == NULL )
kenjiArai 0:5b88d5760320 291 return( MBEDTLS_ERR_MD_FILE_IO_ERROR );
kenjiArai 0:5b88d5760320 292
kenjiArai 0:5b88d5760320 293 mbedtls_md_init( &ctx );
kenjiArai 0:5b88d5760320 294
kenjiArai 0:5b88d5760320 295 if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 )
kenjiArai 0:5b88d5760320 296 goto cleanup;
kenjiArai 0:5b88d5760320 297
kenjiArai 0:5b88d5760320 298 if( ( ret = md_info->starts_func( ctx.md_ctx ) ) != 0 )
kenjiArai 0:5b88d5760320 299 goto cleanup;
kenjiArai 0:5b88d5760320 300
kenjiArai 0:5b88d5760320 301 while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
kenjiArai 0:5b88d5760320 302 if( ( ret = md_info->update_func( ctx.md_ctx, buf, n ) ) != 0 )
kenjiArai 0:5b88d5760320 303 goto cleanup;
kenjiArai 0:5b88d5760320 304
kenjiArai 0:5b88d5760320 305 if( ferror( f ) != 0 )
kenjiArai 0:5b88d5760320 306 ret = MBEDTLS_ERR_MD_FILE_IO_ERROR;
kenjiArai 0:5b88d5760320 307 else
kenjiArai 0:5b88d5760320 308 ret = md_info->finish_func( ctx.md_ctx, output );
kenjiArai 0:5b88d5760320 309
kenjiArai 0:5b88d5760320 310 cleanup:
kenjiArai 0:5b88d5760320 311 mbedtls_platform_zeroize( buf, sizeof( buf ) );
kenjiArai 0:5b88d5760320 312 fclose( f );
kenjiArai 0:5b88d5760320 313 mbedtls_md_free( &ctx );
kenjiArai 0:5b88d5760320 314
kenjiArai 0:5b88d5760320 315 return( ret );
kenjiArai 0:5b88d5760320 316 }
kenjiArai 0:5b88d5760320 317 #endif /* MBEDTLS_FS_IO */
kenjiArai 0:5b88d5760320 318
kenjiArai 0:5b88d5760320 319 int mbedtls_md_hmac_starts( mbedtls_md_context_t *ctx, const unsigned char *key, size_t keylen )
kenjiArai 0:5b88d5760320 320 {
kenjiArai 0:5b88d5760320 321 int ret;
kenjiArai 0:5b88d5760320 322 unsigned char sum[MBEDTLS_MD_MAX_SIZE];
kenjiArai 0:5b88d5760320 323 unsigned char *ipad, *opad;
kenjiArai 0:5b88d5760320 324 size_t i;
kenjiArai 0:5b88d5760320 325
kenjiArai 0:5b88d5760320 326 if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )
kenjiArai 0:5b88d5760320 327 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
kenjiArai 0:5b88d5760320 328
kenjiArai 0:5b88d5760320 329 if( keylen > (size_t) ctx->md_info->block_size )
kenjiArai 0:5b88d5760320 330 {
kenjiArai 0:5b88d5760320 331 if( ( ret = ctx->md_info->starts_func( ctx->md_ctx ) ) != 0 )
kenjiArai 0:5b88d5760320 332 goto cleanup;
kenjiArai 0:5b88d5760320 333 if( ( ret = ctx->md_info->update_func( ctx->md_ctx, key, keylen ) ) != 0 )
kenjiArai 0:5b88d5760320 334 goto cleanup;
kenjiArai 0:5b88d5760320 335 if( ( ret = ctx->md_info->finish_func( ctx->md_ctx, sum ) ) != 0 )
kenjiArai 0:5b88d5760320 336 goto cleanup;
kenjiArai 0:5b88d5760320 337
kenjiArai 0:5b88d5760320 338 keylen = ctx->md_info->size;
kenjiArai 0:5b88d5760320 339 key = sum;
kenjiArai 0:5b88d5760320 340 }
kenjiArai 0:5b88d5760320 341
kenjiArai 0:5b88d5760320 342 ipad = (unsigned char *) ctx->hmac_ctx;
kenjiArai 0:5b88d5760320 343 opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size;
kenjiArai 0:5b88d5760320 344
kenjiArai 0:5b88d5760320 345 memset( ipad, 0x36, ctx->md_info->block_size );
kenjiArai 0:5b88d5760320 346 memset( opad, 0x5C, ctx->md_info->block_size );
kenjiArai 0:5b88d5760320 347
kenjiArai 0:5b88d5760320 348 for( i = 0; i < keylen; i++ )
kenjiArai 0:5b88d5760320 349 {
kenjiArai 0:5b88d5760320 350 ipad[i] = (unsigned char)( ipad[i] ^ key[i] );
kenjiArai 0:5b88d5760320 351 opad[i] = (unsigned char)( opad[i] ^ key[i] );
kenjiArai 0:5b88d5760320 352 }
kenjiArai 0:5b88d5760320 353
kenjiArai 0:5b88d5760320 354 if( ( ret = ctx->md_info->starts_func( ctx->md_ctx ) ) != 0 )
kenjiArai 0:5b88d5760320 355 goto cleanup;
kenjiArai 0:5b88d5760320 356 if( ( ret = ctx->md_info->update_func( ctx->md_ctx, ipad,
kenjiArai 0:5b88d5760320 357 ctx->md_info->block_size ) ) != 0 )
kenjiArai 0:5b88d5760320 358 goto cleanup;
kenjiArai 0:5b88d5760320 359
kenjiArai 0:5b88d5760320 360 cleanup:
kenjiArai 0:5b88d5760320 361 mbedtls_platform_zeroize( sum, sizeof( sum ) );
kenjiArai 0:5b88d5760320 362
kenjiArai 0:5b88d5760320 363 return( ret );
kenjiArai 0:5b88d5760320 364 }
kenjiArai 0:5b88d5760320 365
kenjiArai 0:5b88d5760320 366 int mbedtls_md_hmac_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen )
kenjiArai 0:5b88d5760320 367 {
kenjiArai 0:5b88d5760320 368 if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )
kenjiArai 0:5b88d5760320 369 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
kenjiArai 0:5b88d5760320 370
kenjiArai 0:5b88d5760320 371 return( ctx->md_info->update_func( ctx->md_ctx, input, ilen ) );
kenjiArai 0:5b88d5760320 372 }
kenjiArai 0:5b88d5760320 373
kenjiArai 0:5b88d5760320 374 int mbedtls_md_hmac_finish( mbedtls_md_context_t *ctx, unsigned char *output )
kenjiArai 0:5b88d5760320 375 {
kenjiArai 0:5b88d5760320 376 int ret;
kenjiArai 0:5b88d5760320 377 unsigned char tmp[MBEDTLS_MD_MAX_SIZE];
kenjiArai 0:5b88d5760320 378 unsigned char *opad;
kenjiArai 0:5b88d5760320 379
kenjiArai 0:5b88d5760320 380 if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )
kenjiArai 0:5b88d5760320 381 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
kenjiArai 0:5b88d5760320 382
kenjiArai 0:5b88d5760320 383 opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size;
kenjiArai 0:5b88d5760320 384
kenjiArai 0:5b88d5760320 385 if( ( ret = ctx->md_info->finish_func( ctx->md_ctx, tmp ) ) != 0 )
kenjiArai 0:5b88d5760320 386 return( ret );
kenjiArai 0:5b88d5760320 387 if( ( ret = ctx->md_info->starts_func( ctx->md_ctx ) ) != 0 )
kenjiArai 0:5b88d5760320 388 return( ret );
kenjiArai 0:5b88d5760320 389 if( ( ret = ctx->md_info->update_func( ctx->md_ctx, opad,
kenjiArai 0:5b88d5760320 390 ctx->md_info->block_size ) ) != 0 )
kenjiArai 0:5b88d5760320 391 return( ret );
kenjiArai 0:5b88d5760320 392 if( ( ret = ctx->md_info->update_func( ctx->md_ctx, tmp,
kenjiArai 0:5b88d5760320 393 ctx->md_info->size ) ) != 0 )
kenjiArai 0:5b88d5760320 394 return( ret );
kenjiArai 0:5b88d5760320 395 return( ctx->md_info->finish_func( ctx->md_ctx, output ) );
kenjiArai 0:5b88d5760320 396 }
kenjiArai 0:5b88d5760320 397
kenjiArai 0:5b88d5760320 398 int mbedtls_md_hmac_reset( mbedtls_md_context_t *ctx )
kenjiArai 0:5b88d5760320 399 {
kenjiArai 0:5b88d5760320 400 int ret;
kenjiArai 0:5b88d5760320 401 unsigned char *ipad;
kenjiArai 0:5b88d5760320 402
kenjiArai 0:5b88d5760320 403 if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )
kenjiArai 0:5b88d5760320 404 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
kenjiArai 0:5b88d5760320 405
kenjiArai 0:5b88d5760320 406 ipad = (unsigned char *) ctx->hmac_ctx;
kenjiArai 0:5b88d5760320 407
kenjiArai 0:5b88d5760320 408 if( ( ret = ctx->md_info->starts_func( ctx->md_ctx ) ) != 0 )
kenjiArai 0:5b88d5760320 409 return( ret );
kenjiArai 0:5b88d5760320 410 return( ctx->md_info->update_func( ctx->md_ctx, ipad,
kenjiArai 0:5b88d5760320 411 ctx->md_info->block_size ) );
kenjiArai 0:5b88d5760320 412 }
kenjiArai 0:5b88d5760320 413
kenjiArai 0:5b88d5760320 414 int mbedtls_md_hmac( const mbedtls_md_info_t *md_info,
kenjiArai 0:5b88d5760320 415 const unsigned char *key, size_t keylen,
kenjiArai 0:5b88d5760320 416 const unsigned char *input, size_t ilen,
kenjiArai 0:5b88d5760320 417 unsigned char *output )
kenjiArai 0:5b88d5760320 418 {
kenjiArai 0:5b88d5760320 419 mbedtls_md_context_t ctx;
kenjiArai 0:5b88d5760320 420 int ret;
kenjiArai 0:5b88d5760320 421
kenjiArai 0:5b88d5760320 422 if( md_info == NULL )
kenjiArai 0:5b88d5760320 423 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
kenjiArai 0:5b88d5760320 424
kenjiArai 0:5b88d5760320 425 mbedtls_md_init( &ctx );
kenjiArai 0:5b88d5760320 426
kenjiArai 0:5b88d5760320 427 if( ( ret = mbedtls_md_setup( &ctx, md_info, 1 ) ) != 0 )
kenjiArai 0:5b88d5760320 428 goto cleanup;
kenjiArai 0:5b88d5760320 429
kenjiArai 0:5b88d5760320 430 if( ( ret = mbedtls_md_hmac_starts( &ctx, key, keylen ) ) != 0 )
kenjiArai 0:5b88d5760320 431 goto cleanup;
kenjiArai 0:5b88d5760320 432 if( ( ret = mbedtls_md_hmac_update( &ctx, input, ilen ) ) != 0 )
kenjiArai 0:5b88d5760320 433 goto cleanup;
kenjiArai 0:5b88d5760320 434 if( ( ret = mbedtls_md_hmac_finish( &ctx, output ) ) != 0 )
kenjiArai 0:5b88d5760320 435 goto cleanup;
kenjiArai 0:5b88d5760320 436
kenjiArai 0:5b88d5760320 437 cleanup:
kenjiArai 0:5b88d5760320 438 mbedtls_md_free( &ctx );
kenjiArai 0:5b88d5760320 439
kenjiArai 0:5b88d5760320 440 return( ret );
kenjiArai 0:5b88d5760320 441 }
kenjiArai 0:5b88d5760320 442
kenjiArai 0:5b88d5760320 443 int mbedtls_md_process( mbedtls_md_context_t *ctx, const unsigned char *data )
kenjiArai 0:5b88d5760320 444 {
kenjiArai 0:5b88d5760320 445 if( ctx == NULL || ctx->md_info == NULL )
kenjiArai 0:5b88d5760320 446 return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
kenjiArai 0:5b88d5760320 447
kenjiArai 0:5b88d5760320 448 return( ctx->md_info->process_func( ctx->md_ctx, data ) );
kenjiArai 0:5b88d5760320 449 }
kenjiArai 0:5b88d5760320 450
kenjiArai 0:5b88d5760320 451 unsigned char mbedtls_md_get_size( const mbedtls_md_info_t *md_info )
kenjiArai 0:5b88d5760320 452 {
kenjiArai 0:5b88d5760320 453 if( md_info == NULL )
kenjiArai 0:5b88d5760320 454 return( 0 );
kenjiArai 0:5b88d5760320 455
kenjiArai 0:5b88d5760320 456 return md_info->size;
kenjiArai 0:5b88d5760320 457 }
kenjiArai 0:5b88d5760320 458
kenjiArai 0:5b88d5760320 459 mbedtls_md_type_t mbedtls_md_get_type( const mbedtls_md_info_t *md_info )
kenjiArai 0:5b88d5760320 460 {
kenjiArai 0:5b88d5760320 461 if( md_info == NULL )
kenjiArai 0:5b88d5760320 462 return( MBEDTLS_MD_NONE );
kenjiArai 0:5b88d5760320 463
kenjiArai 0:5b88d5760320 464 return md_info->type;
kenjiArai 0:5b88d5760320 465 }
kenjiArai 0:5b88d5760320 466
kenjiArai 0:5b88d5760320 467 const char *mbedtls_md_get_name( const mbedtls_md_info_t *md_info )
kenjiArai 0:5b88d5760320 468 {
kenjiArai 0:5b88d5760320 469 if( md_info == NULL )
kenjiArai 0:5b88d5760320 470 return( NULL );
kenjiArai 0:5b88d5760320 471
kenjiArai 0:5b88d5760320 472 return md_info->name;
kenjiArai 0:5b88d5760320 473 }
kenjiArai 0:5b88d5760320 474
kenjiArai 0:5b88d5760320 475 #endif /* MBEDTLS_MD_C */