Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/features/mbedtls/src/md5.c@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
marcozecchini 0:9fca2b23d0ba 1 /*
marcozecchini 0:9fca2b23d0ba 2 * RFC 1321 compliant MD5 implementation
marcozecchini 0:9fca2b23d0ba 3 *
marcozecchini 0:9fca2b23d0ba 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
marcozecchini 0:9fca2b23d0ba 5 * SPDX-License-Identifier: Apache-2.0
marcozecchini 0:9fca2b23d0ba 6 *
marcozecchini 0:9fca2b23d0ba 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
marcozecchini 0:9fca2b23d0ba 8 * not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 9 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 10 *
marcozecchini 0:9fca2b23d0ba 11 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 12 *
marcozecchini 0:9fca2b23d0ba 13 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
marcozecchini 0:9fca2b23d0ba 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 16 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 17 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 18 *
marcozecchini 0:9fca2b23d0ba 19 * This file is part of mbed TLS (https://tls.mbed.org)
marcozecchini 0:9fca2b23d0ba 20 */
marcozecchini 0:9fca2b23d0ba 21 /*
marcozecchini 0:9fca2b23d0ba 22 * The MD5 algorithm was designed by Ron Rivest in 1991.
marcozecchini 0:9fca2b23d0ba 23 *
marcozecchini 0:9fca2b23d0ba 24 * http://www.ietf.org/rfc/rfc1321.txt
marcozecchini 0:9fca2b23d0ba 25 */
marcozecchini 0:9fca2b23d0ba 26
marcozecchini 0:9fca2b23d0ba 27 #if !defined(MBEDTLS_CONFIG_FILE)
marcozecchini 0:9fca2b23d0ba 28 #include "mbedtls/config.h"
marcozecchini 0:9fca2b23d0ba 29 #else
marcozecchini 0:9fca2b23d0ba 30 #include MBEDTLS_CONFIG_FILE
marcozecchini 0:9fca2b23d0ba 31 #endif
marcozecchini 0:9fca2b23d0ba 32
marcozecchini 0:9fca2b23d0ba 33 #if defined(MBEDTLS_MD5_C)
marcozecchini 0:9fca2b23d0ba 34
marcozecchini 0:9fca2b23d0ba 35 #include "mbedtls/md5.h"
marcozecchini 0:9fca2b23d0ba 36
marcozecchini 0:9fca2b23d0ba 37 #include <string.h>
marcozecchini 0:9fca2b23d0ba 38
marcozecchini 0:9fca2b23d0ba 39 #if defined(MBEDTLS_SELF_TEST)
marcozecchini 0:9fca2b23d0ba 40 #if defined(MBEDTLS_PLATFORM_C)
marcozecchini 0:9fca2b23d0ba 41 #include "mbedtls/platform.h"
marcozecchini 0:9fca2b23d0ba 42 #else
marcozecchini 0:9fca2b23d0ba 43 #include <stdio.h>
marcozecchini 0:9fca2b23d0ba 44 #define mbedtls_printf printf
marcozecchini 0:9fca2b23d0ba 45 #endif /* MBEDTLS_PLATFORM_C */
marcozecchini 0:9fca2b23d0ba 46 #endif /* MBEDTLS_SELF_TEST */
marcozecchini 0:9fca2b23d0ba 47
marcozecchini 0:9fca2b23d0ba 48 #if !defined(MBEDTLS_MD5_ALT)
marcozecchini 0:9fca2b23d0ba 49
marcozecchini 0:9fca2b23d0ba 50 /* Implementation that should never be optimized out by the compiler */
marcozecchini 0:9fca2b23d0ba 51 static void mbedtls_zeroize( void *v, size_t n ) {
marcozecchini 0:9fca2b23d0ba 52 volatile unsigned char *p = v; while( n-- ) *p++ = 0;
marcozecchini 0:9fca2b23d0ba 53 }
marcozecchini 0:9fca2b23d0ba 54
marcozecchini 0:9fca2b23d0ba 55 /*
marcozecchini 0:9fca2b23d0ba 56 * 32-bit integer manipulation macros (little endian)
marcozecchini 0:9fca2b23d0ba 57 */
marcozecchini 0:9fca2b23d0ba 58 #ifndef GET_UINT32_LE
marcozecchini 0:9fca2b23d0ba 59 #define GET_UINT32_LE(n,b,i) \
marcozecchini 0:9fca2b23d0ba 60 { \
marcozecchini 0:9fca2b23d0ba 61 (n) = ( (uint32_t) (b)[(i) ] ) \
marcozecchini 0:9fca2b23d0ba 62 | ( (uint32_t) (b)[(i) + 1] << 8 ) \
marcozecchini 0:9fca2b23d0ba 63 | ( (uint32_t) (b)[(i) + 2] << 16 ) \
marcozecchini 0:9fca2b23d0ba 64 | ( (uint32_t) (b)[(i) + 3] << 24 ); \
marcozecchini 0:9fca2b23d0ba 65 }
marcozecchini 0:9fca2b23d0ba 66 #endif
marcozecchini 0:9fca2b23d0ba 67
marcozecchini 0:9fca2b23d0ba 68 #ifndef PUT_UINT32_LE
marcozecchini 0:9fca2b23d0ba 69 #define PUT_UINT32_LE(n,b,i) \
marcozecchini 0:9fca2b23d0ba 70 { \
marcozecchini 0:9fca2b23d0ba 71 (b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
marcozecchini 0:9fca2b23d0ba 72 (b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
marcozecchini 0:9fca2b23d0ba 73 (b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
marcozecchini 0:9fca2b23d0ba 74 (b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
marcozecchini 0:9fca2b23d0ba 75 }
marcozecchini 0:9fca2b23d0ba 76 #endif
marcozecchini 0:9fca2b23d0ba 77
marcozecchini 0:9fca2b23d0ba 78 void mbedtls_md5_init( mbedtls_md5_context *ctx )
marcozecchini 0:9fca2b23d0ba 79 {
marcozecchini 0:9fca2b23d0ba 80 memset( ctx, 0, sizeof( mbedtls_md5_context ) );
marcozecchini 0:9fca2b23d0ba 81 }
marcozecchini 0:9fca2b23d0ba 82
marcozecchini 0:9fca2b23d0ba 83 void mbedtls_md5_free( mbedtls_md5_context *ctx )
marcozecchini 0:9fca2b23d0ba 84 {
marcozecchini 0:9fca2b23d0ba 85 if( ctx == NULL )
marcozecchini 0:9fca2b23d0ba 86 return;
marcozecchini 0:9fca2b23d0ba 87
marcozecchini 0:9fca2b23d0ba 88 mbedtls_zeroize( ctx, sizeof( mbedtls_md5_context ) );
marcozecchini 0:9fca2b23d0ba 89 }
marcozecchini 0:9fca2b23d0ba 90
marcozecchini 0:9fca2b23d0ba 91 void mbedtls_md5_clone( mbedtls_md5_context *dst,
marcozecchini 0:9fca2b23d0ba 92 const mbedtls_md5_context *src )
marcozecchini 0:9fca2b23d0ba 93 {
marcozecchini 0:9fca2b23d0ba 94 *dst = *src;
marcozecchini 0:9fca2b23d0ba 95 }
marcozecchini 0:9fca2b23d0ba 96
marcozecchini 0:9fca2b23d0ba 97 /*
marcozecchini 0:9fca2b23d0ba 98 * MD5 context setup
marcozecchini 0:9fca2b23d0ba 99 */
marcozecchini 0:9fca2b23d0ba 100 void mbedtls_md5_starts( mbedtls_md5_context *ctx )
marcozecchini 0:9fca2b23d0ba 101 {
marcozecchini 0:9fca2b23d0ba 102 ctx->total[0] = 0;
marcozecchini 0:9fca2b23d0ba 103 ctx->total[1] = 0;
marcozecchini 0:9fca2b23d0ba 104
marcozecchini 0:9fca2b23d0ba 105 ctx->state[0] = 0x67452301;
marcozecchini 0:9fca2b23d0ba 106 ctx->state[1] = 0xEFCDAB89;
marcozecchini 0:9fca2b23d0ba 107 ctx->state[2] = 0x98BADCFE;
marcozecchini 0:9fca2b23d0ba 108 ctx->state[3] = 0x10325476;
marcozecchini 0:9fca2b23d0ba 109 }
marcozecchini 0:9fca2b23d0ba 110
marcozecchini 0:9fca2b23d0ba 111 #if !defined(MBEDTLS_MD5_PROCESS_ALT)
marcozecchini 0:9fca2b23d0ba 112 void mbedtls_md5_process( mbedtls_md5_context *ctx, const unsigned char data[64] )
marcozecchini 0:9fca2b23d0ba 113 {
marcozecchini 0:9fca2b23d0ba 114 uint32_t X[16], A, B, C, D;
marcozecchini 0:9fca2b23d0ba 115
marcozecchini 0:9fca2b23d0ba 116 GET_UINT32_LE( X[ 0], data, 0 );
marcozecchini 0:9fca2b23d0ba 117 GET_UINT32_LE( X[ 1], data, 4 );
marcozecchini 0:9fca2b23d0ba 118 GET_UINT32_LE( X[ 2], data, 8 );
marcozecchini 0:9fca2b23d0ba 119 GET_UINT32_LE( X[ 3], data, 12 );
marcozecchini 0:9fca2b23d0ba 120 GET_UINT32_LE( X[ 4], data, 16 );
marcozecchini 0:9fca2b23d0ba 121 GET_UINT32_LE( X[ 5], data, 20 );
marcozecchini 0:9fca2b23d0ba 122 GET_UINT32_LE( X[ 6], data, 24 );
marcozecchini 0:9fca2b23d0ba 123 GET_UINT32_LE( X[ 7], data, 28 );
marcozecchini 0:9fca2b23d0ba 124 GET_UINT32_LE( X[ 8], data, 32 );
marcozecchini 0:9fca2b23d0ba 125 GET_UINT32_LE( X[ 9], data, 36 );
marcozecchini 0:9fca2b23d0ba 126 GET_UINT32_LE( X[10], data, 40 );
marcozecchini 0:9fca2b23d0ba 127 GET_UINT32_LE( X[11], data, 44 );
marcozecchini 0:9fca2b23d0ba 128 GET_UINT32_LE( X[12], data, 48 );
marcozecchini 0:9fca2b23d0ba 129 GET_UINT32_LE( X[13], data, 52 );
marcozecchini 0:9fca2b23d0ba 130 GET_UINT32_LE( X[14], data, 56 );
marcozecchini 0:9fca2b23d0ba 131 GET_UINT32_LE( X[15], data, 60 );
marcozecchini 0:9fca2b23d0ba 132
marcozecchini 0:9fca2b23d0ba 133 #define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
marcozecchini 0:9fca2b23d0ba 134
marcozecchini 0:9fca2b23d0ba 135 #define P(a,b,c,d,k,s,t) \
marcozecchini 0:9fca2b23d0ba 136 { \
marcozecchini 0:9fca2b23d0ba 137 a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \
marcozecchini 0:9fca2b23d0ba 138 }
marcozecchini 0:9fca2b23d0ba 139
marcozecchini 0:9fca2b23d0ba 140 A = ctx->state[0];
marcozecchini 0:9fca2b23d0ba 141 B = ctx->state[1];
marcozecchini 0:9fca2b23d0ba 142 C = ctx->state[2];
marcozecchini 0:9fca2b23d0ba 143 D = ctx->state[3];
marcozecchini 0:9fca2b23d0ba 144
marcozecchini 0:9fca2b23d0ba 145 #define F(x,y,z) (z ^ (x & (y ^ z)))
marcozecchini 0:9fca2b23d0ba 146
marcozecchini 0:9fca2b23d0ba 147 P( A, B, C, D, 0, 7, 0xD76AA478 );
marcozecchini 0:9fca2b23d0ba 148 P( D, A, B, C, 1, 12, 0xE8C7B756 );
marcozecchini 0:9fca2b23d0ba 149 P( C, D, A, B, 2, 17, 0x242070DB );
marcozecchini 0:9fca2b23d0ba 150 P( B, C, D, A, 3, 22, 0xC1BDCEEE );
marcozecchini 0:9fca2b23d0ba 151 P( A, B, C, D, 4, 7, 0xF57C0FAF );
marcozecchini 0:9fca2b23d0ba 152 P( D, A, B, C, 5, 12, 0x4787C62A );
marcozecchini 0:9fca2b23d0ba 153 P( C, D, A, B, 6, 17, 0xA8304613 );
marcozecchini 0:9fca2b23d0ba 154 P( B, C, D, A, 7, 22, 0xFD469501 );
marcozecchini 0:9fca2b23d0ba 155 P( A, B, C, D, 8, 7, 0x698098D8 );
marcozecchini 0:9fca2b23d0ba 156 P( D, A, B, C, 9, 12, 0x8B44F7AF );
marcozecchini 0:9fca2b23d0ba 157 P( C, D, A, B, 10, 17, 0xFFFF5BB1 );
marcozecchini 0:9fca2b23d0ba 158 P( B, C, D, A, 11, 22, 0x895CD7BE );
marcozecchini 0:9fca2b23d0ba 159 P( A, B, C, D, 12, 7, 0x6B901122 );
marcozecchini 0:9fca2b23d0ba 160 P( D, A, B, C, 13, 12, 0xFD987193 );
marcozecchini 0:9fca2b23d0ba 161 P( C, D, A, B, 14, 17, 0xA679438E );
marcozecchini 0:9fca2b23d0ba 162 P( B, C, D, A, 15, 22, 0x49B40821 );
marcozecchini 0:9fca2b23d0ba 163
marcozecchini 0:9fca2b23d0ba 164 #undef F
marcozecchini 0:9fca2b23d0ba 165
marcozecchini 0:9fca2b23d0ba 166 #define F(x,y,z) (y ^ (z & (x ^ y)))
marcozecchini 0:9fca2b23d0ba 167
marcozecchini 0:9fca2b23d0ba 168 P( A, B, C, D, 1, 5, 0xF61E2562 );
marcozecchini 0:9fca2b23d0ba 169 P( D, A, B, C, 6, 9, 0xC040B340 );
marcozecchini 0:9fca2b23d0ba 170 P( C, D, A, B, 11, 14, 0x265E5A51 );
marcozecchini 0:9fca2b23d0ba 171 P( B, C, D, A, 0, 20, 0xE9B6C7AA );
marcozecchini 0:9fca2b23d0ba 172 P( A, B, C, D, 5, 5, 0xD62F105D );
marcozecchini 0:9fca2b23d0ba 173 P( D, A, B, C, 10, 9, 0x02441453 );
marcozecchini 0:9fca2b23d0ba 174 P( C, D, A, B, 15, 14, 0xD8A1E681 );
marcozecchini 0:9fca2b23d0ba 175 P( B, C, D, A, 4, 20, 0xE7D3FBC8 );
marcozecchini 0:9fca2b23d0ba 176 P( A, B, C, D, 9, 5, 0x21E1CDE6 );
marcozecchini 0:9fca2b23d0ba 177 P( D, A, B, C, 14, 9, 0xC33707D6 );
marcozecchini 0:9fca2b23d0ba 178 P( C, D, A, B, 3, 14, 0xF4D50D87 );
marcozecchini 0:9fca2b23d0ba 179 P( B, C, D, A, 8, 20, 0x455A14ED );
marcozecchini 0:9fca2b23d0ba 180 P( A, B, C, D, 13, 5, 0xA9E3E905 );
marcozecchini 0:9fca2b23d0ba 181 P( D, A, B, C, 2, 9, 0xFCEFA3F8 );
marcozecchini 0:9fca2b23d0ba 182 P( C, D, A, B, 7, 14, 0x676F02D9 );
marcozecchini 0:9fca2b23d0ba 183 P( B, C, D, A, 12, 20, 0x8D2A4C8A );
marcozecchini 0:9fca2b23d0ba 184
marcozecchini 0:9fca2b23d0ba 185 #undef F
marcozecchini 0:9fca2b23d0ba 186
marcozecchini 0:9fca2b23d0ba 187 #define F(x,y,z) (x ^ y ^ z)
marcozecchini 0:9fca2b23d0ba 188
marcozecchini 0:9fca2b23d0ba 189 P( A, B, C, D, 5, 4, 0xFFFA3942 );
marcozecchini 0:9fca2b23d0ba 190 P( D, A, B, C, 8, 11, 0x8771F681 );
marcozecchini 0:9fca2b23d0ba 191 P( C, D, A, B, 11, 16, 0x6D9D6122 );
marcozecchini 0:9fca2b23d0ba 192 P( B, C, D, A, 14, 23, 0xFDE5380C );
marcozecchini 0:9fca2b23d0ba 193 P( A, B, C, D, 1, 4, 0xA4BEEA44 );
marcozecchini 0:9fca2b23d0ba 194 P( D, A, B, C, 4, 11, 0x4BDECFA9 );
marcozecchini 0:9fca2b23d0ba 195 P( C, D, A, B, 7, 16, 0xF6BB4B60 );
marcozecchini 0:9fca2b23d0ba 196 P( B, C, D, A, 10, 23, 0xBEBFBC70 );
marcozecchini 0:9fca2b23d0ba 197 P( A, B, C, D, 13, 4, 0x289B7EC6 );
marcozecchini 0:9fca2b23d0ba 198 P( D, A, B, C, 0, 11, 0xEAA127FA );
marcozecchini 0:9fca2b23d0ba 199 P( C, D, A, B, 3, 16, 0xD4EF3085 );
marcozecchini 0:9fca2b23d0ba 200 P( B, C, D, A, 6, 23, 0x04881D05 );
marcozecchini 0:9fca2b23d0ba 201 P( A, B, C, D, 9, 4, 0xD9D4D039 );
marcozecchini 0:9fca2b23d0ba 202 P( D, A, B, C, 12, 11, 0xE6DB99E5 );
marcozecchini 0:9fca2b23d0ba 203 P( C, D, A, B, 15, 16, 0x1FA27CF8 );
marcozecchini 0:9fca2b23d0ba 204 P( B, C, D, A, 2, 23, 0xC4AC5665 );
marcozecchini 0:9fca2b23d0ba 205
marcozecchini 0:9fca2b23d0ba 206 #undef F
marcozecchini 0:9fca2b23d0ba 207
marcozecchini 0:9fca2b23d0ba 208 #define F(x,y,z) (y ^ (x | ~z))
marcozecchini 0:9fca2b23d0ba 209
marcozecchini 0:9fca2b23d0ba 210 P( A, B, C, D, 0, 6, 0xF4292244 );
marcozecchini 0:9fca2b23d0ba 211 P( D, A, B, C, 7, 10, 0x432AFF97 );
marcozecchini 0:9fca2b23d0ba 212 P( C, D, A, B, 14, 15, 0xAB9423A7 );
marcozecchini 0:9fca2b23d0ba 213 P( B, C, D, A, 5, 21, 0xFC93A039 );
marcozecchini 0:9fca2b23d0ba 214 P( A, B, C, D, 12, 6, 0x655B59C3 );
marcozecchini 0:9fca2b23d0ba 215 P( D, A, B, C, 3, 10, 0x8F0CCC92 );
marcozecchini 0:9fca2b23d0ba 216 P( C, D, A, B, 10, 15, 0xFFEFF47D );
marcozecchini 0:9fca2b23d0ba 217 P( B, C, D, A, 1, 21, 0x85845DD1 );
marcozecchini 0:9fca2b23d0ba 218 P( A, B, C, D, 8, 6, 0x6FA87E4F );
marcozecchini 0:9fca2b23d0ba 219 P( D, A, B, C, 15, 10, 0xFE2CE6E0 );
marcozecchini 0:9fca2b23d0ba 220 P( C, D, A, B, 6, 15, 0xA3014314 );
marcozecchini 0:9fca2b23d0ba 221 P( B, C, D, A, 13, 21, 0x4E0811A1 );
marcozecchini 0:9fca2b23d0ba 222 P( A, B, C, D, 4, 6, 0xF7537E82 );
marcozecchini 0:9fca2b23d0ba 223 P( D, A, B, C, 11, 10, 0xBD3AF235 );
marcozecchini 0:9fca2b23d0ba 224 P( C, D, A, B, 2, 15, 0x2AD7D2BB );
marcozecchini 0:9fca2b23d0ba 225 P( B, C, D, A, 9, 21, 0xEB86D391 );
marcozecchini 0:9fca2b23d0ba 226
marcozecchini 0:9fca2b23d0ba 227 #undef F
marcozecchini 0:9fca2b23d0ba 228
marcozecchini 0:9fca2b23d0ba 229 ctx->state[0] += A;
marcozecchini 0:9fca2b23d0ba 230 ctx->state[1] += B;
marcozecchini 0:9fca2b23d0ba 231 ctx->state[2] += C;
marcozecchini 0:9fca2b23d0ba 232 ctx->state[3] += D;
marcozecchini 0:9fca2b23d0ba 233 }
marcozecchini 0:9fca2b23d0ba 234 #endif /* !MBEDTLS_MD5_PROCESS_ALT */
marcozecchini 0:9fca2b23d0ba 235
marcozecchini 0:9fca2b23d0ba 236 /*
marcozecchini 0:9fca2b23d0ba 237 * MD5 process buffer
marcozecchini 0:9fca2b23d0ba 238 */
marcozecchini 0:9fca2b23d0ba 239 void mbedtls_md5_update( mbedtls_md5_context *ctx, const unsigned char *input, size_t ilen )
marcozecchini 0:9fca2b23d0ba 240 {
marcozecchini 0:9fca2b23d0ba 241 size_t fill;
marcozecchini 0:9fca2b23d0ba 242 uint32_t left;
marcozecchini 0:9fca2b23d0ba 243
marcozecchini 0:9fca2b23d0ba 244 if( ilen == 0 )
marcozecchini 0:9fca2b23d0ba 245 return;
marcozecchini 0:9fca2b23d0ba 246
marcozecchini 0:9fca2b23d0ba 247 left = ctx->total[0] & 0x3F;
marcozecchini 0:9fca2b23d0ba 248 fill = 64 - left;
marcozecchini 0:9fca2b23d0ba 249
marcozecchini 0:9fca2b23d0ba 250 ctx->total[0] += (uint32_t) ilen;
marcozecchini 0:9fca2b23d0ba 251 ctx->total[0] &= 0xFFFFFFFF;
marcozecchini 0:9fca2b23d0ba 252
marcozecchini 0:9fca2b23d0ba 253 if( ctx->total[0] < (uint32_t) ilen )
marcozecchini 0:9fca2b23d0ba 254 ctx->total[1]++;
marcozecchini 0:9fca2b23d0ba 255
marcozecchini 0:9fca2b23d0ba 256 if( left && ilen >= fill )
marcozecchini 0:9fca2b23d0ba 257 {
marcozecchini 0:9fca2b23d0ba 258 memcpy( (void *) (ctx->buffer + left), input, fill );
marcozecchini 0:9fca2b23d0ba 259 mbedtls_md5_process( ctx, ctx->buffer );
marcozecchini 0:9fca2b23d0ba 260 input += fill;
marcozecchini 0:9fca2b23d0ba 261 ilen -= fill;
marcozecchini 0:9fca2b23d0ba 262 left = 0;
marcozecchini 0:9fca2b23d0ba 263 }
marcozecchini 0:9fca2b23d0ba 264
marcozecchini 0:9fca2b23d0ba 265 while( ilen >= 64 )
marcozecchini 0:9fca2b23d0ba 266 {
marcozecchini 0:9fca2b23d0ba 267 mbedtls_md5_process( ctx, input );
marcozecchini 0:9fca2b23d0ba 268 input += 64;
marcozecchini 0:9fca2b23d0ba 269 ilen -= 64;
marcozecchini 0:9fca2b23d0ba 270 }
marcozecchini 0:9fca2b23d0ba 271
marcozecchini 0:9fca2b23d0ba 272 if( ilen > 0 )
marcozecchini 0:9fca2b23d0ba 273 {
marcozecchini 0:9fca2b23d0ba 274 memcpy( (void *) (ctx->buffer + left), input, ilen );
marcozecchini 0:9fca2b23d0ba 275 }
marcozecchini 0:9fca2b23d0ba 276 }
marcozecchini 0:9fca2b23d0ba 277
marcozecchini 0:9fca2b23d0ba 278 static const unsigned char md5_padding[64] =
marcozecchini 0:9fca2b23d0ba 279 {
marcozecchini 0:9fca2b23d0ba 280 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
marcozecchini 0:9fca2b23d0ba 281 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
marcozecchini 0:9fca2b23d0ba 282 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
marcozecchini 0:9fca2b23d0ba 283 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
marcozecchini 0:9fca2b23d0ba 284 };
marcozecchini 0:9fca2b23d0ba 285
marcozecchini 0:9fca2b23d0ba 286 /*
marcozecchini 0:9fca2b23d0ba 287 * MD5 final digest
marcozecchini 0:9fca2b23d0ba 288 */
marcozecchini 0:9fca2b23d0ba 289 void mbedtls_md5_finish( mbedtls_md5_context *ctx, unsigned char output[16] )
marcozecchini 0:9fca2b23d0ba 290 {
marcozecchini 0:9fca2b23d0ba 291 uint32_t last, padn;
marcozecchini 0:9fca2b23d0ba 292 uint32_t high, low;
marcozecchini 0:9fca2b23d0ba 293 unsigned char msglen[8];
marcozecchini 0:9fca2b23d0ba 294
marcozecchini 0:9fca2b23d0ba 295 high = ( ctx->total[0] >> 29 )
marcozecchini 0:9fca2b23d0ba 296 | ( ctx->total[1] << 3 );
marcozecchini 0:9fca2b23d0ba 297 low = ( ctx->total[0] << 3 );
marcozecchini 0:9fca2b23d0ba 298
marcozecchini 0:9fca2b23d0ba 299 PUT_UINT32_LE( low, msglen, 0 );
marcozecchini 0:9fca2b23d0ba 300 PUT_UINT32_LE( high, msglen, 4 );
marcozecchini 0:9fca2b23d0ba 301
marcozecchini 0:9fca2b23d0ba 302 last = ctx->total[0] & 0x3F;
marcozecchini 0:9fca2b23d0ba 303 padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
marcozecchini 0:9fca2b23d0ba 304
marcozecchini 0:9fca2b23d0ba 305 mbedtls_md5_update( ctx, md5_padding, padn );
marcozecchini 0:9fca2b23d0ba 306 mbedtls_md5_update( ctx, msglen, 8 );
marcozecchini 0:9fca2b23d0ba 307
marcozecchini 0:9fca2b23d0ba 308 PUT_UINT32_LE( ctx->state[0], output, 0 );
marcozecchini 0:9fca2b23d0ba 309 PUT_UINT32_LE( ctx->state[1], output, 4 );
marcozecchini 0:9fca2b23d0ba 310 PUT_UINT32_LE( ctx->state[2], output, 8 );
marcozecchini 0:9fca2b23d0ba 311 PUT_UINT32_LE( ctx->state[3], output, 12 );
marcozecchini 0:9fca2b23d0ba 312 }
marcozecchini 0:9fca2b23d0ba 313
marcozecchini 0:9fca2b23d0ba 314 #endif /* !MBEDTLS_MD5_ALT */
marcozecchini 0:9fca2b23d0ba 315
marcozecchini 0:9fca2b23d0ba 316 /*
marcozecchini 0:9fca2b23d0ba 317 * output = MD5( input buffer )
marcozecchini 0:9fca2b23d0ba 318 */
marcozecchini 0:9fca2b23d0ba 319 void mbedtls_md5( const unsigned char *input, size_t ilen, unsigned char output[16] )
marcozecchini 0:9fca2b23d0ba 320 {
marcozecchini 0:9fca2b23d0ba 321 mbedtls_md5_context ctx;
marcozecchini 0:9fca2b23d0ba 322
marcozecchini 0:9fca2b23d0ba 323 mbedtls_md5_init( &ctx );
marcozecchini 0:9fca2b23d0ba 324 mbedtls_md5_starts( &ctx );
marcozecchini 0:9fca2b23d0ba 325 mbedtls_md5_update( &ctx, input, ilen );
marcozecchini 0:9fca2b23d0ba 326 mbedtls_md5_finish( &ctx, output );
marcozecchini 0:9fca2b23d0ba 327 mbedtls_md5_free( &ctx );
marcozecchini 0:9fca2b23d0ba 328 }
marcozecchini 0:9fca2b23d0ba 329
marcozecchini 0:9fca2b23d0ba 330 #if defined(MBEDTLS_SELF_TEST)
marcozecchini 0:9fca2b23d0ba 331 /*
marcozecchini 0:9fca2b23d0ba 332 * RFC 1321 test vectors
marcozecchini 0:9fca2b23d0ba 333 */
marcozecchini 0:9fca2b23d0ba 334 static const unsigned char md5_test_buf[7][81] =
marcozecchini 0:9fca2b23d0ba 335 {
marcozecchini 0:9fca2b23d0ba 336 { "" },
marcozecchini 0:9fca2b23d0ba 337 { "a" },
marcozecchini 0:9fca2b23d0ba 338 { "abc" },
marcozecchini 0:9fca2b23d0ba 339 { "message digest" },
marcozecchini 0:9fca2b23d0ba 340 { "abcdefghijklmnopqrstuvwxyz" },
marcozecchini 0:9fca2b23d0ba 341 { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
marcozecchini 0:9fca2b23d0ba 342 { "12345678901234567890123456789012345678901234567890123456789012" \
marcozecchini 0:9fca2b23d0ba 343 "345678901234567890" }
marcozecchini 0:9fca2b23d0ba 344 };
marcozecchini 0:9fca2b23d0ba 345
marcozecchini 0:9fca2b23d0ba 346 static const int md5_test_buflen[7] =
marcozecchini 0:9fca2b23d0ba 347 {
marcozecchini 0:9fca2b23d0ba 348 0, 1, 3, 14, 26, 62, 80
marcozecchini 0:9fca2b23d0ba 349 };
marcozecchini 0:9fca2b23d0ba 350
marcozecchini 0:9fca2b23d0ba 351 static const unsigned char md5_test_sum[7][16] =
marcozecchini 0:9fca2b23d0ba 352 {
marcozecchini 0:9fca2b23d0ba 353 { 0xD4, 0x1D, 0x8C, 0xD9, 0x8F, 0x00, 0xB2, 0x04,
marcozecchini 0:9fca2b23d0ba 354 0xE9, 0x80, 0x09, 0x98, 0xEC, 0xF8, 0x42, 0x7E },
marcozecchini 0:9fca2b23d0ba 355 { 0x0C, 0xC1, 0x75, 0xB9, 0xC0, 0xF1, 0xB6, 0xA8,
marcozecchini 0:9fca2b23d0ba 356 0x31, 0xC3, 0x99, 0xE2, 0x69, 0x77, 0x26, 0x61 },
marcozecchini 0:9fca2b23d0ba 357 { 0x90, 0x01, 0x50, 0x98, 0x3C, 0xD2, 0x4F, 0xB0,
marcozecchini 0:9fca2b23d0ba 358 0xD6, 0x96, 0x3F, 0x7D, 0x28, 0xE1, 0x7F, 0x72 },
marcozecchini 0:9fca2b23d0ba 359 { 0xF9, 0x6B, 0x69, 0x7D, 0x7C, 0xB7, 0x93, 0x8D,
marcozecchini 0:9fca2b23d0ba 360 0x52, 0x5A, 0x2F, 0x31, 0xAA, 0xF1, 0x61, 0xD0 },
marcozecchini 0:9fca2b23d0ba 361 { 0xC3, 0xFC, 0xD3, 0xD7, 0x61, 0x92, 0xE4, 0x00,
marcozecchini 0:9fca2b23d0ba 362 0x7D, 0xFB, 0x49, 0x6C, 0xCA, 0x67, 0xE1, 0x3B },
marcozecchini 0:9fca2b23d0ba 363 { 0xD1, 0x74, 0xAB, 0x98, 0xD2, 0x77, 0xD9, 0xF5,
marcozecchini 0:9fca2b23d0ba 364 0xA5, 0x61, 0x1C, 0x2C, 0x9F, 0x41, 0x9D, 0x9F },
marcozecchini 0:9fca2b23d0ba 365 { 0x57, 0xED, 0xF4, 0xA2, 0x2B, 0xE3, 0xC9, 0x55,
marcozecchini 0:9fca2b23d0ba 366 0xAC, 0x49, 0xDA, 0x2E, 0x21, 0x07, 0xB6, 0x7A }
marcozecchini 0:9fca2b23d0ba 367 };
marcozecchini 0:9fca2b23d0ba 368
marcozecchini 0:9fca2b23d0ba 369 /*
marcozecchini 0:9fca2b23d0ba 370 * Checkup routine
marcozecchini 0:9fca2b23d0ba 371 */
marcozecchini 0:9fca2b23d0ba 372 int mbedtls_md5_self_test( int verbose )
marcozecchini 0:9fca2b23d0ba 373 {
marcozecchini 0:9fca2b23d0ba 374 int i;
marcozecchini 0:9fca2b23d0ba 375 unsigned char md5sum[16];
marcozecchini 0:9fca2b23d0ba 376
marcozecchini 0:9fca2b23d0ba 377 for( i = 0; i < 7; i++ )
marcozecchini 0:9fca2b23d0ba 378 {
marcozecchini 0:9fca2b23d0ba 379 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 380 mbedtls_printf( " MD5 test #%d: ", i + 1 );
marcozecchini 0:9fca2b23d0ba 381
marcozecchini 0:9fca2b23d0ba 382 mbedtls_md5( md5_test_buf[i], md5_test_buflen[i], md5sum );
marcozecchini 0:9fca2b23d0ba 383
marcozecchini 0:9fca2b23d0ba 384 if( memcmp( md5sum, md5_test_sum[i], 16 ) != 0 )
marcozecchini 0:9fca2b23d0ba 385 {
marcozecchini 0:9fca2b23d0ba 386 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 387 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 388
marcozecchini 0:9fca2b23d0ba 389 return( 1 );
marcozecchini 0:9fca2b23d0ba 390 }
marcozecchini 0:9fca2b23d0ba 391
marcozecchini 0:9fca2b23d0ba 392 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 393 mbedtls_printf( "passed\n" );
marcozecchini 0:9fca2b23d0ba 394 }
marcozecchini 0:9fca2b23d0ba 395
marcozecchini 0:9fca2b23d0ba 396 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 397 mbedtls_printf( "\n" );
marcozecchini 0:9fca2b23d0ba 398
marcozecchini 0:9fca2b23d0ba 399 return( 0 );
marcozecchini 0:9fca2b23d0ba 400 }
marcozecchini 0:9fca2b23d0ba 401
marcozecchini 0:9fca2b23d0ba 402 #endif /* MBEDTLS_SELF_TEST */
marcozecchini 0:9fca2b23d0ba 403
marcozecchini 0:9fca2b23d0ba 404 #endif /* MBEDTLS_MD5_C */