Kev Mann / mbed-dev-OS5_10_4

RTC auf true

features/mbedtls/src/md5.c@2:7aab896b1a3b, 2019-03-13 (annotated)

Committer:
kevman
Date:
Wed Mar 13 11:03:24 2019 +0000
Revision:
2:7aab896b1a3b
Parent:
0:38ceb79fef03 
2019-03-13

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kevman 0:38ceb79fef03 1 /*
kevman 0:38ceb79fef03 2 * RFC 1321 compliant MD5 implementation
kevman 0:38ceb79fef03 3 *
kevman 0:38ceb79fef03 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
kevman 0:38ceb79fef03 5 * SPDX-License-Identifier: Apache-2.0
kevman 0:38ceb79fef03 6 *
kevman 0:38ceb79fef03 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
kevman 0:38ceb79fef03 8 * not use this file except in compliance with the License.
kevman 0:38ceb79fef03 9 * You may obtain a copy of the License at
kevman 0:38ceb79fef03 10 *
kevman 0:38ceb79fef03 11 * http://www.apache.org/licenses/LICENSE-2.0
kevman 0:38ceb79fef03 12 *
kevman 0:38ceb79fef03 13 * Unless required by applicable law or agreed to in writing, software
kevman 0:38ceb79fef03 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
kevman 0:38ceb79fef03 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kevman 0:38ceb79fef03 16 * See the License for the specific language governing permissions and
kevman 0:38ceb79fef03 17 * limitations under the License.
kevman 0:38ceb79fef03 18 *
kevman 0:38ceb79fef03 19 * This file is part of mbed TLS (https://tls.mbed.org)
kevman 0:38ceb79fef03 20 */
kevman 0:38ceb79fef03 21 /*
kevman 0:38ceb79fef03 22 * The MD5 algorithm was designed by Ron Rivest in 1991.
kevman 0:38ceb79fef03 23 *
kevman 0:38ceb79fef03 24 * http://www.ietf.org/rfc/rfc1321.txt
kevman 0:38ceb79fef03 25 */
kevman 0:38ceb79fef03 26
kevman 0:38ceb79fef03 27 #if !defined(MBEDTLS_CONFIG_FILE)
kevman 0:38ceb79fef03 28 #include "mbedtls/config.h"
kevman 0:38ceb79fef03 29 #else
kevman 0:38ceb79fef03 30 #include MBEDTLS_CONFIG_FILE
kevman 0:38ceb79fef03 31 #endif
kevman 0:38ceb79fef03 32
kevman 0:38ceb79fef03 33 #if defined(MBEDTLS_MD5_C)
kevman 0:38ceb79fef03 34
kevman 0:38ceb79fef03 35 #include "mbedtls/md5.h"
kevman 0:38ceb79fef03 36 #include "mbedtls/platform_util.h"
kevman 0:38ceb79fef03 37
kevman 0:38ceb79fef03 38 #include <string.h>
kevman 0:38ceb79fef03 39
kevman 0:38ceb79fef03 40 #if defined(MBEDTLS_SELF_TEST)
kevman 0:38ceb79fef03 41 #if defined(MBEDTLS_PLATFORM_C)
kevman 0:38ceb79fef03 42 #include "mbedtls/platform.h"
kevman 0:38ceb79fef03 43 #else
kevman 0:38ceb79fef03 44 #include <stdio.h>
kevman 0:38ceb79fef03 45 #define mbedtls_printf printf
kevman 0:38ceb79fef03 46 #endif /* MBEDTLS_PLATFORM_C */
kevman 0:38ceb79fef03 47 #endif /* MBEDTLS_SELF_TEST */
kevman 0:38ceb79fef03 48
kevman 0:38ceb79fef03 49 #if !defined(MBEDTLS_MD5_ALT)
kevman 0:38ceb79fef03 50
kevman 0:38ceb79fef03 51 /*
kevman 0:38ceb79fef03 52 * 32-bit integer manipulation macros (little endian)
kevman 0:38ceb79fef03 53 */
kevman 0:38ceb79fef03 54 #ifndef GET_UINT32_LE
kevman 0:38ceb79fef03 55 #define GET_UINT32_LE(n,b,i) \
kevman 0:38ceb79fef03 56 { \
kevman 0:38ceb79fef03 57 (n) = ( (uint32_t) (b)[(i) ] ) \
kevman 0:38ceb79fef03 58 | ( (uint32_t) (b)[(i) + 1] << 8 ) \
kevman 0:38ceb79fef03 59 | ( (uint32_t) (b)[(i) + 2] << 16 ) \
kevman 0:38ceb79fef03 60 | ( (uint32_t) (b)[(i) + 3] << 24 ); \
kevman 0:38ceb79fef03 61 }
kevman 0:38ceb79fef03 62 #endif
kevman 0:38ceb79fef03 63
kevman 0:38ceb79fef03 64 #ifndef PUT_UINT32_LE
kevman 0:38ceb79fef03 65 #define PUT_UINT32_LE(n,b,i) \
kevman 0:38ceb79fef03 66 { \
kevman 0:38ceb79fef03 67 (b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
kevman 0:38ceb79fef03 68 (b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
kevman 0:38ceb79fef03 69 (b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
kevman 0:38ceb79fef03 70 (b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
kevman 0:38ceb79fef03 71 }
kevman 0:38ceb79fef03 72 #endif
kevman 0:38ceb79fef03 73
kevman 0:38ceb79fef03 74 void mbedtls_md5_init( mbedtls_md5_context *ctx )
kevman 0:38ceb79fef03 75 {
kevman 0:38ceb79fef03 76 memset( ctx, 0, sizeof( mbedtls_md5_context ) );
kevman 0:38ceb79fef03 77 }
kevman 0:38ceb79fef03 78
kevman 0:38ceb79fef03 79 void mbedtls_md5_free( mbedtls_md5_context *ctx )
kevman 0:38ceb79fef03 80 {
kevman 0:38ceb79fef03 81 if( ctx == NULL )
kevman 0:38ceb79fef03 82 return;
kevman 0:38ceb79fef03 83
kevman 0:38ceb79fef03 84 mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md5_context ) );
kevman 0:38ceb79fef03 85 }
kevman 0:38ceb79fef03 86
kevman 0:38ceb79fef03 87 void mbedtls_md5_clone( mbedtls_md5_context *dst,
kevman 0:38ceb79fef03 88 const mbedtls_md5_context *src )
kevman 0:38ceb79fef03 89 {
kevman 0:38ceb79fef03 90 *dst = *src;
kevman 0:38ceb79fef03 91 }
kevman 0:38ceb79fef03 92
kevman 0:38ceb79fef03 93 /*
kevman 0:38ceb79fef03 94 * MD5 context setup
kevman 0:38ceb79fef03 95 */
kevman 0:38ceb79fef03 96 int mbedtls_md5_starts_ret( mbedtls_md5_context *ctx )
kevman 0:38ceb79fef03 97 {
kevman 0:38ceb79fef03 98 ctx->total[0] = 0;
kevman 0:38ceb79fef03 99 ctx->total[1] = 0;
kevman 0:38ceb79fef03 100
kevman 0:38ceb79fef03 101 ctx->state[0] = 0x67452301;
kevman 0:38ceb79fef03 102 ctx->state[1] = 0xEFCDAB89;
kevman 0:38ceb79fef03 103 ctx->state[2] = 0x98BADCFE;
kevman 0:38ceb79fef03 104 ctx->state[3] = 0x10325476;
kevman 0:38ceb79fef03 105
kevman 0:38ceb79fef03 106 return( 0 );
kevman 0:38ceb79fef03 107 }
kevman 0:38ceb79fef03 108
kevman 0:38ceb79fef03 109 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
kevman 0:38ceb79fef03 110 void mbedtls_md5_starts( mbedtls_md5_context *ctx )
kevman 0:38ceb79fef03 111 {
kevman 0:38ceb79fef03 112 mbedtls_md5_starts_ret( ctx );
kevman 0:38ceb79fef03 113 }
kevman 0:38ceb79fef03 114 #endif
kevman 0:38ceb79fef03 115
kevman 0:38ceb79fef03 116 #if !defined(MBEDTLS_MD5_PROCESS_ALT)
kevman 0:38ceb79fef03 117 int mbedtls_internal_md5_process( mbedtls_md5_context *ctx,
kevman 0:38ceb79fef03 118 const unsigned char data[64] )
kevman 0:38ceb79fef03 119 {
kevman 0:38ceb79fef03 120 uint32_t X[16], A, B, C, D;
kevman 0:38ceb79fef03 121
kevman 0:38ceb79fef03 122 GET_UINT32_LE( X[ 0], data, 0 );
kevman 0:38ceb79fef03 123 GET_UINT32_LE( X[ 1], data, 4 );
kevman 0:38ceb79fef03 124 GET_UINT32_LE( X[ 2], data, 8 );
kevman 0:38ceb79fef03 125 GET_UINT32_LE( X[ 3], data, 12 );
kevman 0:38ceb79fef03 126 GET_UINT32_LE( X[ 4], data, 16 );
kevman 0:38ceb79fef03 127 GET_UINT32_LE( X[ 5], data, 20 );
kevman 0:38ceb79fef03 128 GET_UINT32_LE( X[ 6], data, 24 );
kevman 0:38ceb79fef03 129 GET_UINT32_LE( X[ 7], data, 28 );
kevman 0:38ceb79fef03 130 GET_UINT32_LE( X[ 8], data, 32 );
kevman 0:38ceb79fef03 131 GET_UINT32_LE( X[ 9], data, 36 );
kevman 0:38ceb79fef03 132 GET_UINT32_LE( X[10], data, 40 );
kevman 0:38ceb79fef03 133 GET_UINT32_LE( X[11], data, 44 );
kevman 0:38ceb79fef03 134 GET_UINT32_LE( X[12], data, 48 );
kevman 0:38ceb79fef03 135 GET_UINT32_LE( X[13], data, 52 );
kevman 0:38ceb79fef03 136 GET_UINT32_LE( X[14], data, 56 );
kevman 0:38ceb79fef03 137 GET_UINT32_LE( X[15], data, 60 );
kevman 0:38ceb79fef03 138
kevman 0:38ceb79fef03 139 #define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
kevman 0:38ceb79fef03 140
kevman 0:38ceb79fef03 141 #define P(a,b,c,d,k,s,t) \
kevman 0:38ceb79fef03 142 { \
kevman 0:38ceb79fef03 143 a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \
kevman 0:38ceb79fef03 144 }
kevman 0:38ceb79fef03 145
kevman 0:38ceb79fef03 146 A = ctx->state[0];
kevman 0:38ceb79fef03 147 B = ctx->state[1];
kevman 0:38ceb79fef03 148 C = ctx->state[2];
kevman 0:38ceb79fef03 149 D = ctx->state[3];
kevman 0:38ceb79fef03 150
kevman 0:38ceb79fef03 151 #define F(x,y,z) (z ^ (x & (y ^ z)))
kevman 0:38ceb79fef03 152
kevman 0:38ceb79fef03 153 P( A, B, C, D, 0, 7, 0xD76AA478 );
kevman 0:38ceb79fef03 154 P( D, A, B, C, 1, 12, 0xE8C7B756 );
kevman 0:38ceb79fef03 155 P( C, D, A, B, 2, 17, 0x242070DB );
kevman 0:38ceb79fef03 156 P( B, C, D, A, 3, 22, 0xC1BDCEEE );
kevman 0:38ceb79fef03 157 P( A, B, C, D, 4, 7, 0xF57C0FAF );
kevman 0:38ceb79fef03 158 P( D, A, B, C, 5, 12, 0x4787C62A );
kevman 0:38ceb79fef03 159 P( C, D, A, B, 6, 17, 0xA8304613 );
kevman 0:38ceb79fef03 160 P( B, C, D, A, 7, 22, 0xFD469501 );
kevman 0:38ceb79fef03 161 P( A, B, C, D, 8, 7, 0x698098D8 );
kevman 0:38ceb79fef03 162 P( D, A, B, C, 9, 12, 0x8B44F7AF );
kevman 0:38ceb79fef03 163 P( C, D, A, B, 10, 17, 0xFFFF5BB1 );
kevman 0:38ceb79fef03 164 P( B, C, D, A, 11, 22, 0x895CD7BE );
kevman 0:38ceb79fef03 165 P( A, B, C, D, 12, 7, 0x6B901122 );
kevman 0:38ceb79fef03 166 P( D, A, B, C, 13, 12, 0xFD987193 );
kevman 0:38ceb79fef03 167 P( C, D, A, B, 14, 17, 0xA679438E );
kevman 0:38ceb79fef03 168 P( B, C, D, A, 15, 22, 0x49B40821 );
kevman 0:38ceb79fef03 169
kevman 0:38ceb79fef03 170 #undef F
kevman 0:38ceb79fef03 171
kevman 0:38ceb79fef03 172 #define F(x,y,z) (y ^ (z & (x ^ y)))
kevman 0:38ceb79fef03 173
kevman 0:38ceb79fef03 174 P( A, B, C, D, 1, 5, 0xF61E2562 );
kevman 0:38ceb79fef03 175 P( D, A, B, C, 6, 9, 0xC040B340 );
kevman 0:38ceb79fef03 176 P( C, D, A, B, 11, 14, 0x265E5A51 );
kevman 0:38ceb79fef03 177 P( B, C, D, A, 0, 20, 0xE9B6C7AA );
kevman 0:38ceb79fef03 178 P( A, B, C, D, 5, 5, 0xD62F105D );
kevman 0:38ceb79fef03 179 P( D, A, B, C, 10, 9, 0x02441453 );
kevman 0:38ceb79fef03 180 P( C, D, A, B, 15, 14, 0xD8A1E681 );
kevman 0:38ceb79fef03 181 P( B, C, D, A, 4, 20, 0xE7D3FBC8 );
kevman 0:38ceb79fef03 182 P( A, B, C, D, 9, 5, 0x21E1CDE6 );
kevman 0:38ceb79fef03 183 P( D, A, B, C, 14, 9, 0xC33707D6 );
kevman 0:38ceb79fef03 184 P( C, D, A, B, 3, 14, 0xF4D50D87 );
kevman 0:38ceb79fef03 185 P( B, C, D, A, 8, 20, 0x455A14ED );
kevman 0:38ceb79fef03 186 P( A, B, C, D, 13, 5, 0xA9E3E905 );
kevman 0:38ceb79fef03 187 P( D, A, B, C, 2, 9, 0xFCEFA3F8 );
kevman 0:38ceb79fef03 188 P( C, D, A, B, 7, 14, 0x676F02D9 );
kevman 0:38ceb79fef03 189 P( B, C, D, A, 12, 20, 0x8D2A4C8A );
kevman 0:38ceb79fef03 190
kevman 0:38ceb79fef03 191 #undef F
kevman 0:38ceb79fef03 192
kevman 0:38ceb79fef03 193 #define F(x,y,z) (x ^ y ^ z)
kevman 0:38ceb79fef03 194
kevman 0:38ceb79fef03 195 P( A, B, C, D, 5, 4, 0xFFFA3942 );
kevman 0:38ceb79fef03 196 P( D, A, B, C, 8, 11, 0x8771F681 );
kevman 0:38ceb79fef03 197 P( C, D, A, B, 11, 16, 0x6D9D6122 );
kevman 0:38ceb79fef03 198 P( B, C, D, A, 14, 23, 0xFDE5380C );
kevman 0:38ceb79fef03 199 P( A, B, C, D, 1, 4, 0xA4BEEA44 );
kevman 0:38ceb79fef03 200 P( D, A, B, C, 4, 11, 0x4BDECFA9 );
kevman 0:38ceb79fef03 201 P( C, D, A, B, 7, 16, 0xF6BB4B60 );
kevman 0:38ceb79fef03 202 P( B, C, D, A, 10, 23, 0xBEBFBC70 );
kevman 0:38ceb79fef03 203 P( A, B, C, D, 13, 4, 0x289B7EC6 );
kevman 0:38ceb79fef03 204 P( D, A, B, C, 0, 11, 0xEAA127FA );
kevman 0:38ceb79fef03 205 P( C, D, A, B, 3, 16, 0xD4EF3085 );
kevman 0:38ceb79fef03 206 P( B, C, D, A, 6, 23, 0x04881D05 );
kevman 0:38ceb79fef03 207 P( A, B, C, D, 9, 4, 0xD9D4D039 );
kevman 0:38ceb79fef03 208 P( D, A, B, C, 12, 11, 0xE6DB99E5 );
kevman 0:38ceb79fef03 209 P( C, D, A, B, 15, 16, 0x1FA27CF8 );
kevman 0:38ceb79fef03 210 P( B, C, D, A, 2, 23, 0xC4AC5665 );
kevman 0:38ceb79fef03 211
kevman 0:38ceb79fef03 212 #undef F
kevman 0:38ceb79fef03 213
kevman 0:38ceb79fef03 214 #define F(x,y,z) (y ^ (x | ~z))
kevman 0:38ceb79fef03 215
kevman 0:38ceb79fef03 216 P( A, B, C, D, 0, 6, 0xF4292244 );
kevman 0:38ceb79fef03 217 P( D, A, B, C, 7, 10, 0x432AFF97 );
kevman 0:38ceb79fef03 218 P( C, D, A, B, 14, 15, 0xAB9423A7 );
kevman 0:38ceb79fef03 219 P( B, C, D, A, 5, 21, 0xFC93A039 );
kevman 0:38ceb79fef03 220 P( A, B, C, D, 12, 6, 0x655B59C3 );
kevman 0:38ceb79fef03 221 P( D, A, B, C, 3, 10, 0x8F0CCC92 );
kevman 0:38ceb79fef03 222 P( C, D, A, B, 10, 15, 0xFFEFF47D );
kevman 0:38ceb79fef03 223 P( B, C, D, A, 1, 21, 0x85845DD1 );
kevman 0:38ceb79fef03 224 P( A, B, C, D, 8, 6, 0x6FA87E4F );
kevman 0:38ceb79fef03 225 P( D, A, B, C, 15, 10, 0xFE2CE6E0 );
kevman 0:38ceb79fef03 226 P( C, D, A, B, 6, 15, 0xA3014314 );
kevman 0:38ceb79fef03 227 P( B, C, D, A, 13, 21, 0x4E0811A1 );
kevman 0:38ceb79fef03 228 P( A, B, C, D, 4, 6, 0xF7537E82 );
kevman 0:38ceb79fef03 229 P( D, A, B, C, 11, 10, 0xBD3AF235 );
kevman 0:38ceb79fef03 230 P( C, D, A, B, 2, 15, 0x2AD7D2BB );
kevman 0:38ceb79fef03 231 P( B, C, D, A, 9, 21, 0xEB86D391 );
kevman 0:38ceb79fef03 232
kevman 0:38ceb79fef03 233 #undef F
kevman 0:38ceb79fef03 234
kevman 0:38ceb79fef03 235 ctx->state[0] += A;
kevman 0:38ceb79fef03 236 ctx->state[1] += B;
kevman 0:38ceb79fef03 237 ctx->state[2] += C;
kevman 0:38ceb79fef03 238 ctx->state[3] += D;
kevman 0:38ceb79fef03 239
kevman 0:38ceb79fef03 240 return( 0 );
kevman 0:38ceb79fef03 241 }
kevman 0:38ceb79fef03 242
kevman 0:38ceb79fef03 243 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
kevman 0:38ceb79fef03 244 void mbedtls_md5_process( mbedtls_md5_context *ctx,
kevman 0:38ceb79fef03 245 const unsigned char data[64] )
kevman 0:38ceb79fef03 246 {
kevman 0:38ceb79fef03 247 mbedtls_internal_md5_process( ctx, data );
kevman 0:38ceb79fef03 248 }
kevman 0:38ceb79fef03 249 #endif
kevman 0:38ceb79fef03 250 #endif /* !MBEDTLS_MD5_PROCESS_ALT */
kevman 0:38ceb79fef03 251
kevman 0:38ceb79fef03 252 /*
kevman 0:38ceb79fef03 253 * MD5 process buffer
kevman 0:38ceb79fef03 254 */
kevman 0:38ceb79fef03 255 int mbedtls_md5_update_ret( mbedtls_md5_context *ctx,
kevman 0:38ceb79fef03 256 const unsigned char *input,
kevman 0:38ceb79fef03 257 size_t ilen )
kevman 0:38ceb79fef03 258 {
kevman 0:38ceb79fef03 259 int ret;
kevman 0:38ceb79fef03 260 size_t fill;
kevman 0:38ceb79fef03 261 uint32_t left;
kevman 0:38ceb79fef03 262
kevman 0:38ceb79fef03 263 if( ilen == 0 )
kevman 0:38ceb79fef03 264 return( 0 );
kevman 0:38ceb79fef03 265
kevman 0:38ceb79fef03 266 left = ctx->total[0] & 0x3F;
kevman 0:38ceb79fef03 267 fill = 64 - left;
kevman 0:38ceb79fef03 268
kevman 0:38ceb79fef03 269 ctx->total[0] += (uint32_t) ilen;
kevman 0:38ceb79fef03 270 ctx->total[0] &= 0xFFFFFFFF;
kevman 0:38ceb79fef03 271
kevman 0:38ceb79fef03 272 if( ctx->total[0] < (uint32_t) ilen )
kevman 0:38ceb79fef03 273 ctx->total[1]++;
kevman 0:38ceb79fef03 274
kevman 0:38ceb79fef03 275 if( left && ilen >= fill )
kevman 0:38ceb79fef03 276 {
kevman 0:38ceb79fef03 277 memcpy( (void *) (ctx->buffer + left), input, fill );
kevman 0:38ceb79fef03 278 if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
kevman 0:38ceb79fef03 279 return( ret );
kevman 0:38ceb79fef03 280
kevman 0:38ceb79fef03 281 input += fill;
kevman 0:38ceb79fef03 282 ilen -= fill;
kevman 0:38ceb79fef03 283 left = 0;
kevman 0:38ceb79fef03 284 }
kevman 0:38ceb79fef03 285
kevman 0:38ceb79fef03 286 while( ilen >= 64 )
kevman 0:38ceb79fef03 287 {
kevman 0:38ceb79fef03 288 if( ( ret = mbedtls_internal_md5_process( ctx, input ) ) != 0 )
kevman 0:38ceb79fef03 289 return( ret );
kevman 0:38ceb79fef03 290
kevman 0:38ceb79fef03 291 input += 64;
kevman 0:38ceb79fef03 292 ilen -= 64;
kevman 0:38ceb79fef03 293 }
kevman 0:38ceb79fef03 294
kevman 0:38ceb79fef03 295 if( ilen > 0 )
kevman 0:38ceb79fef03 296 {
kevman 0:38ceb79fef03 297 memcpy( (void *) (ctx->buffer + left), input, ilen );
kevman 0:38ceb79fef03 298 }
kevman 0:38ceb79fef03 299
kevman 0:38ceb79fef03 300 return( 0 );
kevman 0:38ceb79fef03 301 }
kevman 0:38ceb79fef03 302
kevman 0:38ceb79fef03 303 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
kevman 0:38ceb79fef03 304 void mbedtls_md5_update( mbedtls_md5_context *ctx,
kevman 0:38ceb79fef03 305 const unsigned char *input,
kevman 0:38ceb79fef03 306 size_t ilen )
kevman 0:38ceb79fef03 307 {
kevman 0:38ceb79fef03 308 mbedtls_md5_update_ret( ctx, input, ilen );
kevman 0:38ceb79fef03 309 }
kevman 0:38ceb79fef03 310 #endif
kevman 0:38ceb79fef03 311
kevman 0:38ceb79fef03 312 /*
kevman 0:38ceb79fef03 313 * MD5 final digest
kevman 0:38ceb79fef03 314 */
kevman 0:38ceb79fef03 315 int mbedtls_md5_finish_ret( mbedtls_md5_context *ctx,
kevman 0:38ceb79fef03 316 unsigned char output[16] )
kevman 0:38ceb79fef03 317 {
kevman 0:38ceb79fef03 318 int ret;
kevman 0:38ceb79fef03 319 uint32_t used;
kevman 0:38ceb79fef03 320 uint32_t high, low;
kevman 0:38ceb79fef03 321
kevman 0:38ceb79fef03 322 /*
kevman 0:38ceb79fef03 323 * Add padding: 0x80 then 0x00 until 8 bytes remain for the length
kevman 0:38ceb79fef03 324 */
kevman 0:38ceb79fef03 325 used = ctx->total[0] & 0x3F;
kevman 0:38ceb79fef03 326
kevman 0:38ceb79fef03 327 ctx->buffer[used++] = 0x80;
kevman 0:38ceb79fef03 328
kevman 0:38ceb79fef03 329 if( used <= 56 )
kevman 0:38ceb79fef03 330 {
kevman 0:38ceb79fef03 331 /* Enough room for padding + length in current block */
kevman 0:38ceb79fef03 332 memset( ctx->buffer + used, 0, 56 - used );
kevman 0:38ceb79fef03 333 }
kevman 0:38ceb79fef03 334 else
kevman 0:38ceb79fef03 335 {
kevman 0:38ceb79fef03 336 /* We'll need an extra block */
kevman 0:38ceb79fef03 337 memset( ctx->buffer + used, 0, 64 - used );
kevman 0:38ceb79fef03 338
kevman 0:38ceb79fef03 339 if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
kevman 0:38ceb79fef03 340 return( ret );
kevman 0:38ceb79fef03 341
kevman 0:38ceb79fef03 342 memset( ctx->buffer, 0, 56 );
kevman 0:38ceb79fef03 343 }
kevman 0:38ceb79fef03 344
kevman 0:38ceb79fef03 345 /*
kevman 0:38ceb79fef03 346 * Add message length
kevman 0:38ceb79fef03 347 */
kevman 0:38ceb79fef03 348 high = ( ctx->total[0] >> 29 )
kevman 0:38ceb79fef03 349 | ( ctx->total[1] << 3 );
kevman 0:38ceb79fef03 350 low = ( ctx->total[0] << 3 );
kevman 0:38ceb79fef03 351
kevman 0:38ceb79fef03 352 PUT_UINT32_LE( low, ctx->buffer, 56 );
kevman 0:38ceb79fef03 353 PUT_UINT32_LE( high, ctx->buffer, 60 );
kevman 0:38ceb79fef03 354
kevman 0:38ceb79fef03 355 if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
kevman 0:38ceb79fef03 356 return( ret );
kevman 0:38ceb79fef03 357
kevman 0:38ceb79fef03 358 /*
kevman 0:38ceb79fef03 359 * Output final state
kevman 0:38ceb79fef03 360 */
kevman 0:38ceb79fef03 361 PUT_UINT32_LE( ctx->state[0], output, 0 );
kevman 0:38ceb79fef03 362 PUT_UINT32_LE( ctx->state[1], output, 4 );
kevman 0:38ceb79fef03 363 PUT_UINT32_LE( ctx->state[2], output, 8 );
kevman 0:38ceb79fef03 364 PUT_UINT32_LE( ctx->state[3], output, 12 );
kevman 0:38ceb79fef03 365
kevman 0:38ceb79fef03 366 return( 0 );
kevman 0:38ceb79fef03 367 }
kevman 0:38ceb79fef03 368
kevman 0:38ceb79fef03 369 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
kevman 0:38ceb79fef03 370 void mbedtls_md5_finish( mbedtls_md5_context *ctx,
kevman 0:38ceb79fef03 371 unsigned char output[16] )
kevman 0:38ceb79fef03 372 {
kevman 0:38ceb79fef03 373 mbedtls_md5_finish_ret( ctx, output );
kevman 0:38ceb79fef03 374 }
kevman 0:38ceb79fef03 375 #endif
kevman 0:38ceb79fef03 376
kevman 0:38ceb79fef03 377 #endif /* !MBEDTLS_MD5_ALT */
kevman 0:38ceb79fef03 378
kevman 0:38ceb79fef03 379 /*
kevman 0:38ceb79fef03 380 * output = MD5( input buffer )
kevman 0:38ceb79fef03 381 */
kevman 0:38ceb79fef03 382 int mbedtls_md5_ret( const unsigned char *input,
kevman 0:38ceb79fef03 383 size_t ilen,
kevman 0:38ceb79fef03 384 unsigned char output[16] )
kevman 0:38ceb79fef03 385 {
kevman 0:38ceb79fef03 386 int ret;
kevman 0:38ceb79fef03 387 mbedtls_md5_context ctx;
kevman 0:38ceb79fef03 388
kevman 0:38ceb79fef03 389 mbedtls_md5_init( &ctx );
kevman 0:38ceb79fef03 390
kevman 0:38ceb79fef03 391 if( ( ret = mbedtls_md5_starts_ret( &ctx ) ) != 0 )
kevman 0:38ceb79fef03 392 goto exit;
kevman 0:38ceb79fef03 393
kevman 0:38ceb79fef03 394 if( ( ret = mbedtls_md5_update_ret( &ctx, input, ilen ) ) != 0 )
kevman 0:38ceb79fef03 395 goto exit;
kevman 0:38ceb79fef03 396
kevman 0:38ceb79fef03 397 if( ( ret = mbedtls_md5_finish_ret( &ctx, output ) ) != 0 )
kevman 0:38ceb79fef03 398 goto exit;
kevman 0:38ceb79fef03 399
kevman 0:38ceb79fef03 400 exit:
kevman 0:38ceb79fef03 401 mbedtls_md5_free( &ctx );
kevman 0:38ceb79fef03 402
kevman 0:38ceb79fef03 403 return( ret );
kevman 0:38ceb79fef03 404 }
kevman 0:38ceb79fef03 405
kevman 0:38ceb79fef03 406 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
kevman 0:38ceb79fef03 407 void mbedtls_md5( const unsigned char *input,
kevman 0:38ceb79fef03 408 size_t ilen,
kevman 0:38ceb79fef03 409 unsigned char output[16] )
kevman 0:38ceb79fef03 410 {
kevman 0:38ceb79fef03 411 mbedtls_md5_ret( input, ilen, output );
kevman 0:38ceb79fef03 412 }
kevman 0:38ceb79fef03 413 #endif
kevman 0:38ceb79fef03 414
kevman 0:38ceb79fef03 415 #if defined(MBEDTLS_SELF_TEST)
kevman 0:38ceb79fef03 416 /*
kevman 0:38ceb79fef03 417 * RFC 1321 test vectors
kevman 0:38ceb79fef03 418 */
kevman 0:38ceb79fef03 419 static const unsigned char md5_test_buf[7][81] =
kevman 0:38ceb79fef03 420 {
kevman 0:38ceb79fef03 421 { "" },
kevman 0:38ceb79fef03 422 { "a" },
kevman 0:38ceb79fef03 423 { "abc" },
kevman 0:38ceb79fef03 424 { "message digest" },
kevman 0:38ceb79fef03 425 { "abcdefghijklmnopqrstuvwxyz" },
kevman 0:38ceb79fef03 426 { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
kevman 0:38ceb79fef03 427 { "12345678901234567890123456789012345678901234567890123456789012"
kevman 0:38ceb79fef03 428 "345678901234567890" }
kevman 0:38ceb79fef03 429 };
kevman 0:38ceb79fef03 430
kevman 0:38ceb79fef03 431 static const size_t md5_test_buflen[7] =
kevman 0:38ceb79fef03 432 {
kevman 0:38ceb79fef03 433 0, 1, 3, 14, 26, 62, 80
kevman 0:38ceb79fef03 434 };
kevman 0:38ceb79fef03 435
kevman 0:38ceb79fef03 436 static const unsigned char md5_test_sum[7][16] =
kevman 0:38ceb79fef03 437 {
kevman 0:38ceb79fef03 438 { 0xD4, 0x1D, 0x8C, 0xD9, 0x8F, 0x00, 0xB2, 0x04,
kevman 0:38ceb79fef03 439 0xE9, 0x80, 0x09, 0x98, 0xEC, 0xF8, 0x42, 0x7E },
kevman 0:38ceb79fef03 440 { 0x0C, 0xC1, 0x75, 0xB9, 0xC0, 0xF1, 0xB6, 0xA8,
kevman 0:38ceb79fef03 441 0x31, 0xC3, 0x99, 0xE2, 0x69, 0x77, 0x26, 0x61 },
kevman 0:38ceb79fef03 442 { 0x90, 0x01, 0x50, 0x98, 0x3C, 0xD2, 0x4F, 0xB0,
kevman 0:38ceb79fef03 443 0xD6, 0x96, 0x3F, 0x7D, 0x28, 0xE1, 0x7F, 0x72 },
kevman 0:38ceb79fef03 444 { 0xF9, 0x6B, 0x69, 0x7D, 0x7C, 0xB7, 0x93, 0x8D,
kevman 0:38ceb79fef03 445 0x52, 0x5A, 0x2F, 0x31, 0xAA, 0xF1, 0x61, 0xD0 },
kevman 0:38ceb79fef03 446 { 0xC3, 0xFC, 0xD3, 0xD7, 0x61, 0x92, 0xE4, 0x00,
kevman 0:38ceb79fef03 447 0x7D, 0xFB, 0x49, 0x6C, 0xCA, 0x67, 0xE1, 0x3B },
kevman 0:38ceb79fef03 448 { 0xD1, 0x74, 0xAB, 0x98, 0xD2, 0x77, 0xD9, 0xF5,
kevman 0:38ceb79fef03 449 0xA5, 0x61, 0x1C, 0x2C, 0x9F, 0x41, 0x9D, 0x9F },
kevman 0:38ceb79fef03 450 { 0x57, 0xED, 0xF4, 0xA2, 0x2B, 0xE3, 0xC9, 0x55,
kevman 0:38ceb79fef03 451 0xAC, 0x49, 0xDA, 0x2E, 0x21, 0x07, 0xB6, 0x7A }
kevman 0:38ceb79fef03 452 };
kevman 0:38ceb79fef03 453
kevman 0:38ceb79fef03 454 /*
kevman 0:38ceb79fef03 455 * Checkup routine
kevman 0:38ceb79fef03 456 */
kevman 0:38ceb79fef03 457 int mbedtls_md5_self_test( int verbose )
kevman 0:38ceb79fef03 458 {
kevman 0:38ceb79fef03 459 int i, ret = 0;
kevman 0:38ceb79fef03 460 unsigned char md5sum[16];
kevman 0:38ceb79fef03 461
kevman 0:38ceb79fef03 462 for( i = 0; i < 7; i++ )
kevman 0:38ceb79fef03 463 {
kevman 0:38ceb79fef03 464 if( verbose != 0 )
kevman 0:38ceb79fef03 465 mbedtls_printf( " MD5 test #%d: ", i + 1 );
kevman 0:38ceb79fef03 466
kevman 0:38ceb79fef03 467 ret = mbedtls_md5_ret( md5_test_buf[i], md5_test_buflen[i], md5sum );
kevman 0:38ceb79fef03 468 if( ret != 0 )
kevman 0:38ceb79fef03 469 goto fail;
kevman 0:38ceb79fef03 470
kevman 0:38ceb79fef03 471 if( memcmp( md5sum, md5_test_sum[i], 16 ) != 0 )
kevman 0:38ceb79fef03 472 {
kevman 0:38ceb79fef03 473 ret = 1;
kevman 0:38ceb79fef03 474 goto fail;
kevman 0:38ceb79fef03 475 }
kevman 0:38ceb79fef03 476
kevman 0:38ceb79fef03 477 if( verbose != 0 )
kevman 0:38ceb79fef03 478 mbedtls_printf( "passed\n" );
kevman 0:38ceb79fef03 479 }
kevman 0:38ceb79fef03 480
kevman 0:38ceb79fef03 481 if( verbose != 0 )
kevman 0:38ceb79fef03 482 mbedtls_printf( "\n" );
kevman 0:38ceb79fef03 483
kevman 0:38ceb79fef03 484 return( 0 );
kevman 0:38ceb79fef03 485
kevman 0:38ceb79fef03 486 fail:
kevman 0:38ceb79fef03 487 if( verbose != 0 )
kevman 0:38ceb79fef03 488 mbedtls_printf( "failed\n" );
kevman 0:38ceb79fef03 489
kevman 0:38ceb79fef03 490 return( ret );
kevman 0:38ceb79fef03 491 }
kevman 0:38ceb79fef03 492
kevman 0:38ceb79fef03 493 #endif /* MBEDTLS_SELF_TEST */
kevman 0:38ceb79fef03 494
kevman 0:38ceb79fef03 495 #endif /* MBEDTLS_MD5_C */