wolf SSL / wolfSSL

wolfSSL SSL/TLS library, support up to TLS1.3

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wolfcrypt/src/md5.c@7:481bce714567, 2017-05-02 (annotated)

Committer:
wolfSSL
Date:
Tue May 02 08:44:47 2017 +0000
Revision:
7:481bce714567
wolfSSL3.10.2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 7:481bce714567 1 /* md5.c
wolfSSL 7:481bce714567 2 *
wolfSSL 7:481bce714567 3 * Copyright (C) 2006-2016 wolfSSL Inc.
wolfSSL 7:481bce714567 4 *
wolfSSL 7:481bce714567 5 * This file is part of wolfSSL.
wolfSSL 7:481bce714567 6 *
wolfSSL 7:481bce714567 7 * wolfSSL is free software; you can redistribute it and/or modify
wolfSSL 7:481bce714567 8 * it under the terms of the GNU General Public License as published by
wolfSSL 7:481bce714567 9 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 7:481bce714567 10 * (at your option) any later version.
wolfSSL 7:481bce714567 11 *
wolfSSL 7:481bce714567 12 * wolfSSL is distributed in the hope that it will be useful,
wolfSSL 7:481bce714567 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 7:481bce714567 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 7:481bce714567 15 * GNU General Public License for more details.
wolfSSL 7:481bce714567 16 *
wolfSSL 7:481bce714567 17 * You should have received a copy of the GNU General Public License
wolfSSL 7:481bce714567 18 * along with this program; if not, write to the Free Software
wolfSSL 7:481bce714567 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
wolfSSL 7:481bce714567 20 */
wolfSSL 7:481bce714567 21
wolfSSL 7:481bce714567 22
wolfSSL 7:481bce714567 23
wolfSSL 7:481bce714567 24 #ifdef HAVE_CONFIG_H
wolfSSL 7:481bce714567 25 #include <config.h>
wolfSSL 7:481bce714567 26 #endif
wolfSSL 7:481bce714567 27
wolfSSL 7:481bce714567 28 #include <wolfssl/wolfcrypt/settings.h>
wolfSSL 7:481bce714567 29
wolfSSL 7:481bce714567 30 #if !defined(NO_MD5)
wolfSSL 7:481bce714567 31
wolfSSL 7:481bce714567 32 #if defined(WOLFSSL_TI_HASH)
wolfSSL 7:481bce714567 33 /* #include <wolfcrypt/src/port/ti/ti-hash.c> included by wc_port.c */
wolfSSL 7:481bce714567 34 #else
wolfSSL 7:481bce714567 35
wolfSSL 7:481bce714567 36 #ifdef WOLFSSL_PIC32MZ_HASH
wolfSSL 7:481bce714567 37 #define wc_InitMd5 wc_InitMd5_sw
wolfSSL 7:481bce714567 38 #define wc_Md5Update wc_Md5Update_sw
wolfSSL 7:481bce714567 39 #define wc_Md5Final wc_Md5Final_sw
wolfSSL 7:481bce714567 40 #endif
wolfSSL 7:481bce714567 41
wolfSSL 7:481bce714567 42 #include <wolfssl/wolfcrypt/md5.h>
wolfSSL 7:481bce714567 43 #include <wolfssl/wolfcrypt/error-crypt.h>
wolfSSL 7:481bce714567 44
wolfSSL 7:481bce714567 45 #ifdef NO_INLINE
wolfSSL 7:481bce714567 46 #include <wolfssl/wolfcrypt/misc.h>
wolfSSL 7:481bce714567 47 #else
wolfSSL 7:481bce714567 48 #define WOLFSSL_MISC_INCLUDED
wolfSSL 7:481bce714567 49 #include <wolfcrypt/src/misc.c>
wolfSSL 7:481bce714567 50 #endif
wolfSSL 7:481bce714567 51
wolfSSL 7:481bce714567 52 #ifdef FREESCALE_MMCAU_SHA
wolfSSL 7:481bce714567 53 #include "fsl_mmcau.h"
wolfSSL 7:481bce714567 54 #define XTRANSFORM(S,B) Transform((S), (B))
wolfSSL 7:481bce714567 55 #else
wolfSSL 7:481bce714567 56 #define XTRANSFORM(S,B) Transform((S))
wolfSSL 7:481bce714567 57 #endif
wolfSSL 7:481bce714567 58
wolfSSL 7:481bce714567 59
wolfSSL 7:481bce714567 60 #if defined(STM32F2_HASH) || defined(STM32F4_HASH)
wolfSSL 7:481bce714567 61 /*
wolfSSL 7:481bce714567 62 * STM32F2/F4 hardware MD5 support through the standard peripheral
wolfSSL 7:481bce714567 63 * library. (See note in README).
wolfSSL 7:481bce714567 64 */
wolfSSL 7:481bce714567 65
wolfSSL 7:481bce714567 66 void wc_InitMd5(Md5* md5)
wolfSSL 7:481bce714567 67 {
wolfSSL 7:481bce714567 68 /* STM32 struct notes:
wolfSSL 7:481bce714567 69 * md5->buffer = first 4 bytes used to hold partial block if needed
wolfSSL 7:481bce714567 70 * md5->buffLen = num bytes currently stored in md5->buffer
wolfSSL 7:481bce714567 71 * md5->loLen = num bytes that have been written to STM32 FIFO
wolfSSL 7:481bce714567 72 */
wolfSSL 7:481bce714567 73 XMEMSET(md5->buffer, 0, MD5_REG_SIZE);
wolfSSL 7:481bce714567 74
wolfSSL 7:481bce714567 75 md5->buffLen = 0;
wolfSSL 7:481bce714567 76 md5->loLen = 0;
wolfSSL 7:481bce714567 77
wolfSSL 7:481bce714567 78 /* initialize HASH peripheral */
wolfSSL 7:481bce714567 79 HASH_DeInit();
wolfSSL 7:481bce714567 80
wolfSSL 7:481bce714567 81 /* configure algo used, algo mode, datatype */
wolfSSL 7:481bce714567 82 HASH->CR &= ~ (HASH_CR_ALGO | HASH_CR_DATATYPE | HASH_CR_MODE);
wolfSSL 7:481bce714567 83 HASH->CR |= (HASH_AlgoSelection_MD5 | HASH_AlgoMode_HASH
wolfSSL 7:481bce714567 84 | HASH_DataType_8b);
wolfSSL 7:481bce714567 85
wolfSSL 7:481bce714567 86 /* reset HASH processor */
wolfSSL 7:481bce714567 87 HASH->CR |= HASH_CR_INIT;
wolfSSL 7:481bce714567 88 }
wolfSSL 7:481bce714567 89
wolfSSL 7:481bce714567 90 void wc_Md5Update(Md5* md5, const byte* data, word32 len)
wolfSSL 7:481bce714567 91 {
wolfSSL 7:481bce714567 92 word32 i = 0;
wolfSSL 7:481bce714567 93 word32 fill = 0;
wolfSSL 7:481bce714567 94 word32 diff = 0;
wolfSSL 7:481bce714567 95
wolfSSL 7:481bce714567 96 /* if saved partial block is available */
wolfSSL 7:481bce714567 97 if (md5->buffLen > 0) {
wolfSSL 7:481bce714567 98 fill = 4 - md5->buffLen;
wolfSSL 7:481bce714567 99
wolfSSL 7:481bce714567 100 /* if enough data to fill, fill and push to FIFO */
wolfSSL 7:481bce714567 101 if (fill <= len) {
wolfSSL 7:481bce714567 102 XMEMCPY((byte*)md5->buffer + md5->buffLen, data, fill);
wolfSSL 7:481bce714567 103 HASH_DataIn(*(uint32_t*)md5->buffer);
wolfSSL 7:481bce714567 104
wolfSSL 7:481bce714567 105 data += fill;
wolfSSL 7:481bce714567 106 len -= fill;
wolfSSL 7:481bce714567 107 md5->loLen += 4;
wolfSSL 7:481bce714567 108 md5->buffLen = 0;
wolfSSL 7:481bce714567 109 } else {
wolfSSL 7:481bce714567 110 /* append partial to existing stored block */
wolfSSL 7:481bce714567 111 XMEMCPY((byte*)md5->buffer + md5->buffLen, data, len);
wolfSSL 7:481bce714567 112 md5->buffLen += len;
wolfSSL 7:481bce714567 113 return;
wolfSSL 7:481bce714567 114 }
wolfSSL 7:481bce714567 115 }
wolfSSL 7:481bce714567 116
wolfSSL 7:481bce714567 117 /* write input block in the IN FIFO */
wolfSSL 7:481bce714567 118 for (i = 0; i < len; i += 4)
wolfSSL 7:481bce714567 119 {
wolfSSL 7:481bce714567 120 diff = len - i;
wolfSSL 7:481bce714567 121 if (diff < 4) {
wolfSSL 7:481bce714567 122 /* store incomplete last block, not yet in FIFO */
wolfSSL 7:481bce714567 123 XMEMSET(md5->buffer, 0, MD5_REG_SIZE);
wolfSSL 7:481bce714567 124 XMEMCPY((byte*)md5->buffer, data, diff);
wolfSSL 7:481bce714567 125 md5->buffLen = diff;
wolfSSL 7:481bce714567 126 } else {
wolfSSL 7:481bce714567 127 HASH_DataIn(*(uint32_t*)data);
wolfSSL 7:481bce714567 128 data+=4;
wolfSSL 7:481bce714567 129 }
wolfSSL 7:481bce714567 130 }
wolfSSL 7:481bce714567 131
wolfSSL 7:481bce714567 132 /* keep track of total data length thus far */
wolfSSL 7:481bce714567 133 md5->loLen += (len - md5->buffLen);
wolfSSL 7:481bce714567 134 }
wolfSSL 7:481bce714567 135
wolfSSL 7:481bce714567 136 void wc_Md5Final(Md5* md5, byte* hash)
wolfSSL 7:481bce714567 137 {
wolfSSL 7:481bce714567 138 __IO uint16_t nbvalidbitsdata = 0;
wolfSSL 7:481bce714567 139
wolfSSL 7:481bce714567 140 /* finish reading any trailing bytes into FIFO */
wolfSSL 7:481bce714567 141 if (md5->buffLen > 0) {
wolfSSL 7:481bce714567 142 HASH_DataIn(*(uint32_t*)md5->buffer);
wolfSSL 7:481bce714567 143 md5->loLen += md5->buffLen;
wolfSSL 7:481bce714567 144 }
wolfSSL 7:481bce714567 145
wolfSSL 7:481bce714567 146 /* calculate number of valid bits in last word of input data */
wolfSSL 7:481bce714567 147 nbvalidbitsdata = 8 * (md5->loLen % MD5_REG_SIZE);
wolfSSL 7:481bce714567 148
wolfSSL 7:481bce714567 149 /* configure number of valid bits in last word of the data */
wolfSSL 7:481bce714567 150 HASH_SetLastWordValidBitsNbr(nbvalidbitsdata);
wolfSSL 7:481bce714567 151
wolfSSL 7:481bce714567 152 /* start HASH processor */
wolfSSL 7:481bce714567 153 HASH_StartDigest();
wolfSSL 7:481bce714567 154
wolfSSL 7:481bce714567 155 /* wait until Busy flag == RESET */
wolfSSL 7:481bce714567 156 while (HASH_GetFlagStatus(HASH_FLAG_BUSY) != RESET) {}
wolfSSL 7:481bce714567 157
wolfSSL 7:481bce714567 158 /* read message digest */
wolfSSL 7:481bce714567 159 md5->digest[0] = HASH->HR[0];
wolfSSL 7:481bce714567 160 md5->digest[1] = HASH->HR[1];
wolfSSL 7:481bce714567 161 md5->digest[2] = HASH->HR[2];
wolfSSL 7:481bce714567 162 md5->digest[3] = HASH->HR[3];
wolfSSL 7:481bce714567 163
wolfSSL 7:481bce714567 164 ByteReverseWords(md5->digest, md5->digest, MD5_DIGEST_SIZE);
wolfSSL 7:481bce714567 165
wolfSSL 7:481bce714567 166 XMEMCPY(hash, md5->digest, MD5_DIGEST_SIZE);
wolfSSL 7:481bce714567 167
wolfSSL 7:481bce714567 168 wc_InitMd5(md5); /* reset state */
wolfSSL 7:481bce714567 169 }
wolfSSL 7:481bce714567 170
wolfSSL 7:481bce714567 171 #else /* Begin wolfCrypt software implementation */
wolfSSL 7:481bce714567 172
wolfSSL 7:481bce714567 173 void wc_InitMd5(Md5* md5)
wolfSSL 7:481bce714567 174 {
wolfSSL 7:481bce714567 175 md5->digest[0] = 0x67452301L;
wolfSSL 7:481bce714567 176 md5->digest[1] = 0xefcdab89L;
wolfSSL 7:481bce714567 177 md5->digest[2] = 0x98badcfeL;
wolfSSL 7:481bce714567 178 md5->digest[3] = 0x10325476L;
wolfSSL 7:481bce714567 179
wolfSSL 7:481bce714567 180 md5->buffLen = 0;
wolfSSL 7:481bce714567 181 md5->loLen = 0;
wolfSSL 7:481bce714567 182 md5->hiLen = 0;
wolfSSL 7:481bce714567 183 }
wolfSSL 7:481bce714567 184
wolfSSL 7:481bce714567 185 #ifdef FREESCALE_MMCAU_SHA
wolfSSL 7:481bce714567 186 static int Transform(Md5* md5, byte* data)
wolfSSL 7:481bce714567 187 {
wolfSSL 7:481bce714567 188 int ret = wolfSSL_CryptHwMutexLock();
wolfSSL 7:481bce714567 189 if(ret == 0) {
wolfSSL 7:481bce714567 190 MMCAU_MD5_HashN(data, 1, (uint32_t*)(md5->digest));
wolfSSL 7:481bce714567 191 wolfSSL_CryptHwMutexUnLock();
wolfSSL 7:481bce714567 192 }
wolfSSL 7:481bce714567 193 return ret;
wolfSSL 7:481bce714567 194 }
wolfSSL 7:481bce714567 195 #endif /* FREESCALE_MMCAU_SHA */
wolfSSL 7:481bce714567 196
wolfSSL 7:481bce714567 197 #ifndef FREESCALE_MMCAU_SHA
wolfSSL 7:481bce714567 198
wolfSSL 7:481bce714567 199 static void Transform(Md5* md5)
wolfSSL 7:481bce714567 200 {
wolfSSL 7:481bce714567 201 #define F1(x, y, z) (z ^ (x & (y ^ z)))
wolfSSL 7:481bce714567 202 #define F2(x, y, z) F1(z, x, y)
wolfSSL 7:481bce714567 203 #define F3(x, y, z) (x ^ y ^ z)
wolfSSL 7:481bce714567 204 #define F4(x, y, z) (y ^ (x | ~z))
wolfSSL 7:481bce714567 205
wolfSSL 7:481bce714567 206 #define MD5STEP(f, w, x, y, z, data, s) \
wolfSSL 7:481bce714567 207 w = rotlFixed(w + f(x, y, z) + data, s) + x
wolfSSL 7:481bce714567 208
wolfSSL 7:481bce714567 209 /* Copy context->state[] to working vars */
wolfSSL 7:481bce714567 210 word32 a = md5->digest[0];
wolfSSL 7:481bce714567 211 word32 b = md5->digest[1];
wolfSSL 7:481bce714567 212 word32 c = md5->digest[2];
wolfSSL 7:481bce714567 213 word32 d = md5->digest[3];
wolfSSL 7:481bce714567 214
wolfSSL 7:481bce714567 215 MD5STEP(F1, a, b, c, d, md5->buffer[0] + 0xd76aa478, 7);
wolfSSL 7:481bce714567 216 MD5STEP(F1, d, a, b, c, md5->buffer[1] + 0xe8c7b756, 12);
wolfSSL 7:481bce714567 217 MD5STEP(F1, c, d, a, b, md5->buffer[2] + 0x242070db, 17);
wolfSSL 7:481bce714567 218 MD5STEP(F1, b, c, d, a, md5->buffer[3] + 0xc1bdceee, 22);
wolfSSL 7:481bce714567 219 MD5STEP(F1, a, b, c, d, md5->buffer[4] + 0xf57c0faf, 7);
wolfSSL 7:481bce714567 220 MD5STEP(F1, d, a, b, c, md5->buffer[5] + 0x4787c62a, 12);
wolfSSL 7:481bce714567 221 MD5STEP(F1, c, d, a, b, md5->buffer[6] + 0xa8304613, 17);
wolfSSL 7:481bce714567 222 MD5STEP(F1, b, c, d, a, md5->buffer[7] + 0xfd469501, 22);
wolfSSL 7:481bce714567 223 MD5STEP(F1, a, b, c, d, md5->buffer[8] + 0x698098d8, 7);
wolfSSL 7:481bce714567 224 MD5STEP(F1, d, a, b, c, md5->buffer[9] + 0x8b44f7af, 12);
wolfSSL 7:481bce714567 225 MD5STEP(F1, c, d, a, b, md5->buffer[10] + 0xffff5bb1, 17);
wolfSSL 7:481bce714567 226 MD5STEP(F1, b, c, d, a, md5->buffer[11] + 0x895cd7be, 22);
wolfSSL 7:481bce714567 227 MD5STEP(F1, a, b, c, d, md5->buffer[12] + 0x6b901122, 7);
wolfSSL 7:481bce714567 228 MD5STEP(F1, d, a, b, c, md5->buffer[13] + 0xfd987193, 12);
wolfSSL 7:481bce714567 229 MD5STEP(F1, c, d, a, b, md5->buffer[14] + 0xa679438e, 17);
wolfSSL 7:481bce714567 230 MD5STEP(F1, b, c, d, a, md5->buffer[15] + 0x49b40821, 22);
wolfSSL 7:481bce714567 231
wolfSSL 7:481bce714567 232 MD5STEP(F2, a, b, c, d, md5->buffer[1] + 0xf61e2562, 5);
wolfSSL 7:481bce714567 233 MD5STEP(F2, d, a, b, c, md5->buffer[6] + 0xc040b340, 9);
wolfSSL 7:481bce714567 234 MD5STEP(F2, c, d, a, b, md5->buffer[11] + 0x265e5a51, 14);
wolfSSL 7:481bce714567 235 MD5STEP(F2, b, c, d, a, md5->buffer[0] + 0xe9b6c7aa, 20);
wolfSSL 7:481bce714567 236 MD5STEP(F2, a, b, c, d, md5->buffer[5] + 0xd62f105d, 5);
wolfSSL 7:481bce714567 237 MD5STEP(F2, d, a, b, c, md5->buffer[10] + 0x02441453, 9);
wolfSSL 7:481bce714567 238 MD5STEP(F2, c, d, a, b, md5->buffer[15] + 0xd8a1e681, 14);
wolfSSL 7:481bce714567 239 MD5STEP(F2, b, c, d, a, md5->buffer[4] + 0xe7d3fbc8, 20);
wolfSSL 7:481bce714567 240 MD5STEP(F2, a, b, c, d, md5->buffer[9] + 0x21e1cde6, 5);
wolfSSL 7:481bce714567 241 MD5STEP(F2, d, a, b, c, md5->buffer[14] + 0xc33707d6, 9);
wolfSSL 7:481bce714567 242 MD5STEP(F2, c, d, a, b, md5->buffer[3] + 0xf4d50d87, 14);
wolfSSL 7:481bce714567 243 MD5STEP(F2, b, c, d, a, md5->buffer[8] + 0x455a14ed, 20);
wolfSSL 7:481bce714567 244 MD5STEP(F2, a, b, c, d, md5->buffer[13] + 0xa9e3e905, 5);
wolfSSL 7:481bce714567 245 MD5STEP(F2, d, a, b, c, md5->buffer[2] + 0xfcefa3f8, 9);
wolfSSL 7:481bce714567 246 MD5STEP(F2, c, d, a, b, md5->buffer[7] + 0x676f02d9, 14);
wolfSSL 7:481bce714567 247 MD5STEP(F2, b, c, d, a, md5->buffer[12] + 0x8d2a4c8a, 20);
wolfSSL 7:481bce714567 248
wolfSSL 7:481bce714567 249 MD5STEP(F3, a, b, c, d, md5->buffer[5] + 0xfffa3942, 4);
wolfSSL 7:481bce714567 250 MD5STEP(F3, d, a, b, c, md5->buffer[8] + 0x8771f681, 11);
wolfSSL 7:481bce714567 251 MD5STEP(F3, c, d, a, b, md5->buffer[11] + 0x6d9d6122, 16);
wolfSSL 7:481bce714567 252 MD5STEP(F3, b, c, d, a, md5->buffer[14] + 0xfde5380c, 23);
wolfSSL 7:481bce714567 253 MD5STEP(F3, a, b, c, d, md5->buffer[1] + 0xa4beea44, 4);
wolfSSL 7:481bce714567 254 MD5STEP(F3, d, a, b, c, md5->buffer[4] + 0x4bdecfa9, 11);
wolfSSL 7:481bce714567 255 MD5STEP(F3, c, d, a, b, md5->buffer[7] + 0xf6bb4b60, 16);
wolfSSL 7:481bce714567 256 MD5STEP(F3, b, c, d, a, md5->buffer[10] + 0xbebfbc70, 23);
wolfSSL 7:481bce714567 257 MD5STEP(F3, a, b, c, d, md5->buffer[13] + 0x289b7ec6, 4);
wolfSSL 7:481bce714567 258 MD5STEP(F3, d, a, b, c, md5->buffer[0] + 0xeaa127fa, 11);
wolfSSL 7:481bce714567 259 MD5STEP(F3, c, d, a, b, md5->buffer[3] + 0xd4ef3085, 16);
wolfSSL 7:481bce714567 260 MD5STEP(F3, b, c, d, a, md5->buffer[6] + 0x04881d05, 23);
wolfSSL 7:481bce714567 261 MD5STEP(F3, a, b, c, d, md5->buffer[9] + 0xd9d4d039, 4);
wolfSSL 7:481bce714567 262 MD5STEP(F3, d, a, b, c, md5->buffer[12] + 0xe6db99e5, 11);
wolfSSL 7:481bce714567 263 MD5STEP(F3, c, d, a, b, md5->buffer[15] + 0x1fa27cf8, 16);
wolfSSL 7:481bce714567 264 MD5STEP(F3, b, c, d, a, md5->buffer[2] + 0xc4ac5665, 23);
wolfSSL 7:481bce714567 265
wolfSSL 7:481bce714567 266 MD5STEP(F4, a, b, c, d, md5->buffer[0] + 0xf4292244, 6);
wolfSSL 7:481bce714567 267 MD5STEP(F4, d, a, b, c, md5->buffer[7] + 0x432aff97, 10);
wolfSSL 7:481bce714567 268 MD5STEP(F4, c, d, a, b, md5->buffer[14] + 0xab9423a7, 15);
wolfSSL 7:481bce714567 269 MD5STEP(F4, b, c, d, a, md5->buffer[5] + 0xfc93a039, 21);
wolfSSL 7:481bce714567 270 MD5STEP(F4, a, b, c, d, md5->buffer[12] + 0x655b59c3, 6);
wolfSSL 7:481bce714567 271 MD5STEP(F4, d, a, b, c, md5->buffer[3] + 0x8f0ccc92, 10);
wolfSSL 7:481bce714567 272 MD5STEP(F4, c, d, a, b, md5->buffer[10] + 0xffeff47d, 15);
wolfSSL 7:481bce714567 273 MD5STEP(F4, b, c, d, a, md5->buffer[1] + 0x85845dd1, 21);
wolfSSL 7:481bce714567 274 MD5STEP(F4, a, b, c, d, md5->buffer[8] + 0x6fa87e4f, 6);
wolfSSL 7:481bce714567 275 MD5STEP(F4, d, a, b, c, md5->buffer[15] + 0xfe2ce6e0, 10);
wolfSSL 7:481bce714567 276 MD5STEP(F4, c, d, a, b, md5->buffer[6] + 0xa3014314, 15);
wolfSSL 7:481bce714567 277 MD5STEP(F4, b, c, d, a, md5->buffer[13] + 0x4e0811a1, 21);
wolfSSL 7:481bce714567 278 MD5STEP(F4, a, b, c, d, md5->buffer[4] + 0xf7537e82, 6);
wolfSSL 7:481bce714567 279 MD5STEP(F4, d, a, b, c, md5->buffer[11] + 0xbd3af235, 10);
wolfSSL 7:481bce714567 280 MD5STEP(F4, c, d, a, b, md5->buffer[2] + 0x2ad7d2bb, 15);
wolfSSL 7:481bce714567 281 MD5STEP(F4, b, c, d, a, md5->buffer[9] + 0xeb86d391, 21);
wolfSSL 7:481bce714567 282
wolfSSL 7:481bce714567 283 /* Add the working vars back into digest state[] */
wolfSSL 7:481bce714567 284 md5->digest[0] += a;
wolfSSL 7:481bce714567 285 md5->digest[1] += b;
wolfSSL 7:481bce714567 286 md5->digest[2] += c;
wolfSSL 7:481bce714567 287 md5->digest[3] += d;
wolfSSL 7:481bce714567 288 }
wolfSSL 7:481bce714567 289
wolfSSL 7:481bce714567 290 #endif /* End Software implementation */
wolfSSL 7:481bce714567 291
wolfSSL 7:481bce714567 292
wolfSSL 7:481bce714567 293 static INLINE void AddLength(Md5* md5, word32 len)
wolfSSL 7:481bce714567 294 {
wolfSSL 7:481bce714567 295 word32 tmp = md5->loLen;
wolfSSL 7:481bce714567 296 if ( (md5->loLen += len) < tmp)
wolfSSL 7:481bce714567 297 md5->hiLen++; /* carry low to high */
wolfSSL 7:481bce714567 298 }
wolfSSL 7:481bce714567 299
wolfSSL 7:481bce714567 300
wolfSSL 7:481bce714567 301 void wc_Md5Update(Md5* md5, const byte* data, word32 len)
wolfSSL 7:481bce714567 302 {
wolfSSL 7:481bce714567 303 /* do block size increments */
wolfSSL 7:481bce714567 304 byte* local = (byte*)md5->buffer;
wolfSSL 7:481bce714567 305
wolfSSL 7:481bce714567 306 while (len) {
wolfSSL 7:481bce714567 307 word32 add = min(len, MD5_BLOCK_SIZE - md5->buffLen);
wolfSSL 7:481bce714567 308 XMEMCPY(&local[md5->buffLen], data, add);
wolfSSL 7:481bce714567 309
wolfSSL 7:481bce714567 310 md5->buffLen += add;
wolfSSL 7:481bce714567 311 data += add;
wolfSSL 7:481bce714567 312 len -= add;
wolfSSL 7:481bce714567 313
wolfSSL 7:481bce714567 314 if (md5->buffLen == MD5_BLOCK_SIZE) {
wolfSSL 7:481bce714567 315 #if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
wolfSSL 7:481bce714567 316 ByteReverseWords(md5->buffer, md5->buffer, MD5_BLOCK_SIZE);
wolfSSL 7:481bce714567 317 #endif
wolfSSL 7:481bce714567 318 XTRANSFORM(md5, local);
wolfSSL 7:481bce714567 319 AddLength(md5, MD5_BLOCK_SIZE);
wolfSSL 7:481bce714567 320 md5->buffLen = 0;
wolfSSL 7:481bce714567 321 }
wolfSSL 7:481bce714567 322 }
wolfSSL 7:481bce714567 323 }
wolfSSL 7:481bce714567 324
wolfSSL 7:481bce714567 325
wolfSSL 7:481bce714567 326 void wc_Md5Final(Md5* md5, byte* hash)
wolfSSL 7:481bce714567 327 {
wolfSSL 7:481bce714567 328 byte* local = (byte*)md5->buffer;
wolfSSL 7:481bce714567 329
wolfSSL 7:481bce714567 330 AddLength(md5, md5->buffLen); /* before adding pads */
wolfSSL 7:481bce714567 331
wolfSSL 7:481bce714567 332 local[md5->buffLen++] = 0x80; /* add 1 */
wolfSSL 7:481bce714567 333
wolfSSL 7:481bce714567 334 /* pad with zeros */
wolfSSL 7:481bce714567 335 if (md5->buffLen > MD5_PAD_SIZE) {
wolfSSL 7:481bce714567 336 XMEMSET(&local[md5->buffLen], 0, MD5_BLOCK_SIZE - md5->buffLen);
wolfSSL 7:481bce714567 337 md5->buffLen += MD5_BLOCK_SIZE - md5->buffLen;
wolfSSL 7:481bce714567 338
wolfSSL 7:481bce714567 339 #if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
wolfSSL 7:481bce714567 340 ByteReverseWords(md5->buffer, md5->buffer, MD5_BLOCK_SIZE);
wolfSSL 7:481bce714567 341 #endif
wolfSSL 7:481bce714567 342 XTRANSFORM(md5, local);
wolfSSL 7:481bce714567 343 md5->buffLen = 0;
wolfSSL 7:481bce714567 344 }
wolfSSL 7:481bce714567 345 XMEMSET(&local[md5->buffLen], 0, MD5_PAD_SIZE - md5->buffLen);
wolfSSL 7:481bce714567 346
wolfSSL 7:481bce714567 347 /* put lengths in bits */
wolfSSL 7:481bce714567 348 md5->hiLen = (md5->loLen >> (8*sizeof(md5->loLen) - 3)) +
wolfSSL 7:481bce714567 349 (md5->hiLen << 3);
wolfSSL 7:481bce714567 350 md5->loLen = md5->loLen << 3;
wolfSSL 7:481bce714567 351
wolfSSL 7:481bce714567 352 /* store lengths */
wolfSSL 7:481bce714567 353 #if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU_SHA)
wolfSSL 7:481bce714567 354 ByteReverseWords(md5->buffer, md5->buffer, MD5_BLOCK_SIZE);
wolfSSL 7:481bce714567 355 #endif
wolfSSL 7:481bce714567 356 /* ! length ordering dependent on digest endian type ! */
wolfSSL 7:481bce714567 357 XMEMCPY(&local[MD5_PAD_SIZE], &md5->loLen, sizeof(word32));
wolfSSL 7:481bce714567 358 XMEMCPY(&local[MD5_PAD_SIZE + sizeof(word32)], &md5->hiLen, sizeof(word32));
wolfSSL 7:481bce714567 359
wolfSSL 7:481bce714567 360 XTRANSFORM(md5, local);
wolfSSL 7:481bce714567 361 #ifdef BIG_ENDIAN_ORDER
wolfSSL 7:481bce714567 362 ByteReverseWords(md5->digest, md5->digest, MD5_DIGEST_SIZE);
wolfSSL 7:481bce714567 363 #endif
wolfSSL 7:481bce714567 364 XMEMCPY(hash, md5->digest, MD5_DIGEST_SIZE);
wolfSSL 7:481bce714567 365
wolfSSL 7:481bce714567 366 wc_InitMd5(md5); /* reset state */
wolfSSL 7:481bce714567 367 }
wolfSSL 7:481bce714567 368
wolfSSL 7:481bce714567 369 #endif /* End wolfCrypt software implementation */
wolfSSL 7:481bce714567 370
wolfSSL 7:481bce714567 371
wolfSSL 7:481bce714567 372 int wc_Md5Hash(const byte* data, word32 len, byte* hash)
wolfSSL 7:481bce714567 373 {
wolfSSL 7:481bce714567 374 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 7:481bce714567 375 Md5* md5;
wolfSSL 7:481bce714567 376 #else
wolfSSL 7:481bce714567 377 Md5 md5[1];
wolfSSL 7:481bce714567 378 #endif
wolfSSL 7:481bce714567 379
wolfSSL 7:481bce714567 380 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 7:481bce714567 381 md5 = (Md5*)XMALLOC(sizeof(Md5), NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 7:481bce714567 382 if (md5 == NULL)
wolfSSL 7:481bce714567 383 return MEMORY_E;
wolfSSL 7:481bce714567 384 #endif
wolfSSL 7:481bce714567 385
wolfSSL 7:481bce714567 386 wc_InitMd5(md5);
wolfSSL 7:481bce714567 387 wc_Md5Update(md5, data, len);
wolfSSL 7:481bce714567 388 wc_Md5Final(md5, hash);
wolfSSL 7:481bce714567 389
wolfSSL 7:481bce714567 390 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 7:481bce714567 391 XFREE(md5, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 7:481bce714567 392 #endif
wolfSSL 7:481bce714567 393
wolfSSL 7:481bce714567 394 return 0;
wolfSSL 7:481bce714567 395 }
wolfSSL 7:481bce714567 396
wolfSSL 7:481bce714567 397 #endif /* WOLFSSL_TI_HASH */
wolfSSL 7:481bce714567 398
wolfSSL 7:481bce714567 399 #endif /* NO_MD5 */
wolfSSL 7:481bce714567 400