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wolfcrypt/src/md5.c@4:1b0d80432c79, 2016-04-28 (annotated)

Committer:
wolfSSL
Date:
Thu Apr 28 00:57:21 2016 +0000
Revision:
4:1b0d80432c79
wolfSSL 3.9.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 4:1b0d80432c79 1 /* md5.c
wolfSSL 4:1b0d80432c79 2 *
wolfSSL 4:1b0d80432c79 3 * Copyright (C) 2006-2016 wolfSSL Inc.
wolfSSL 4:1b0d80432c79 4 *
wolfSSL 4:1b0d80432c79 5 * This file is part of wolfSSL.
wolfSSL 4:1b0d80432c79 6 *
wolfSSL 4:1b0d80432c79 7 * wolfSSL is free software; you can redistribute it and/or modify
wolfSSL 4:1b0d80432c79 8 * it under the terms of the GNU General Public License as published by
wolfSSL 4:1b0d80432c79 9 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 4:1b0d80432c79 10 * (at your option) any later version.
wolfSSL 4:1b0d80432c79 11 *
wolfSSL 4:1b0d80432c79 12 * wolfSSL is distributed in the hope that it will be useful,
wolfSSL 4:1b0d80432c79 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 4:1b0d80432c79 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 4:1b0d80432c79 15 * GNU General Public License for more details.
wolfSSL 4:1b0d80432c79 16 *
wolfSSL 4:1b0d80432c79 17 * You should have received a copy of the GNU General Public License
wolfSSL 4:1b0d80432c79 18 * along with this program; if not, write to the Free Software
wolfSSL 4:1b0d80432c79 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
wolfSSL 4:1b0d80432c79 20 */
wolfSSL 4:1b0d80432c79 21
wolfSSL 4:1b0d80432c79 22
wolfSSL 4:1b0d80432c79 23
wolfSSL 4:1b0d80432c79 24 #ifdef HAVE_CONFIG_H
wolfSSL 4:1b0d80432c79 25 #include <config.h>
wolfSSL 4:1b0d80432c79 26 #endif
wolfSSL 4:1b0d80432c79 27
wolfSSL 4:1b0d80432c79 28 #include <wolfssl/wolfcrypt/settings.h>
wolfSSL 4:1b0d80432c79 29
wolfSSL 4:1b0d80432c79 30 #if !defined(NO_MD5)
wolfSSL 4:1b0d80432c79 31
wolfSSL 4:1b0d80432c79 32 #if defined(WOLFSSL_TI_HASH)
wolfSSL 4:1b0d80432c79 33 /* #include <wolfcrypt/src/port/ti/ti-hash.c> included by wc_port.c */
wolfSSL 4:1b0d80432c79 34 #else
wolfSSL 4:1b0d80432c79 35
wolfSSL 4:1b0d80432c79 36 #ifdef WOLFSSL_PIC32MZ_HASH
wolfSSL 4:1b0d80432c79 37 #define wc_InitMd5 wc_InitMd5_sw
wolfSSL 4:1b0d80432c79 38 #define wc_Md5Update wc_Md5Update_sw
wolfSSL 4:1b0d80432c79 39 #define wc_Md5Final wc_Md5Final_sw
wolfSSL 4:1b0d80432c79 40 #endif
wolfSSL 4:1b0d80432c79 41
wolfSSL 4:1b0d80432c79 42 #include <wolfssl/wolfcrypt/md5.h>
wolfSSL 4:1b0d80432c79 43 #include <wolfssl/wolfcrypt/error-crypt.h>
wolfSSL 4:1b0d80432c79 44
wolfSSL 4:1b0d80432c79 45 #ifdef NO_INLINE
wolfSSL 4:1b0d80432c79 46 #include <wolfssl/wolfcrypt/misc.h>
wolfSSL 4:1b0d80432c79 47 #else
wolfSSL 4:1b0d80432c79 48 #include <wolfcrypt/src/misc.c>
wolfSSL 4:1b0d80432c79 49 #endif
wolfSSL 4:1b0d80432c79 50
wolfSSL 4:1b0d80432c79 51 #ifdef FREESCALE_MMCAU
wolfSSL 4:1b0d80432c79 52 #include "cau_api.h"
wolfSSL 4:1b0d80432c79 53 #define XTRANSFORM(S,B) Transform((S), (B))
wolfSSL 4:1b0d80432c79 54 #else
wolfSSL 4:1b0d80432c79 55 #define XTRANSFORM(S,B) Transform((S))
wolfSSL 4:1b0d80432c79 56 #endif
wolfSSL 4:1b0d80432c79 57
wolfSSL 4:1b0d80432c79 58
wolfSSL 4:1b0d80432c79 59 #ifdef STM32F2_HASH
wolfSSL 4:1b0d80432c79 60 /*
wolfSSL 4:1b0d80432c79 61 * STM32F2 hardware MD5 support through the STM32F2 standard peripheral
wolfSSL 4:1b0d80432c79 62 * library. Documentation located in STM32F2xx Standard Peripheral Library
wolfSSL 4:1b0d80432c79 63 * document (See note in README).
wolfSSL 4:1b0d80432c79 64 */
wolfSSL 4:1b0d80432c79 65 #include "stm32f2xx.h"
wolfSSL 4:1b0d80432c79 66
wolfSSL 4:1b0d80432c79 67 void wc_InitMd5(Md5* md5)
wolfSSL 4:1b0d80432c79 68 {
wolfSSL 4:1b0d80432c79 69 /* STM32F2 struct notes:
wolfSSL 4:1b0d80432c79 70 * md5->buffer = first 4 bytes used to hold partial block if needed
wolfSSL 4:1b0d80432c79 71 * md5->buffLen = num bytes currently stored in md5->buffer
wolfSSL 4:1b0d80432c79 72 * md5->loLen = num bytes that have been written to STM32 FIFO
wolfSSL 4:1b0d80432c79 73 */
wolfSSL 4:1b0d80432c79 74 XMEMSET(md5->buffer, 0, MD5_REG_SIZE);
wolfSSL 4:1b0d80432c79 75
wolfSSL 4:1b0d80432c79 76 md5->buffLen = 0;
wolfSSL 4:1b0d80432c79 77 md5->loLen = 0;
wolfSSL 4:1b0d80432c79 78
wolfSSL 4:1b0d80432c79 79 /* initialize HASH peripheral */
wolfSSL 4:1b0d80432c79 80 HASH_DeInit();
wolfSSL 4:1b0d80432c79 81
wolfSSL 4:1b0d80432c79 82 /* configure algo used, algo mode, datatype */
wolfSSL 4:1b0d80432c79 83 HASH->CR &= ~ (HASH_CR_ALGO | HASH_CR_DATATYPE | HASH_CR_MODE);
wolfSSL 4:1b0d80432c79 84 HASH->CR |= (HASH_AlgoSelection_MD5 | HASH_AlgoMode_HASH
wolfSSL 4:1b0d80432c79 85 | HASH_DataType_8b);
wolfSSL 4:1b0d80432c79 86
wolfSSL 4:1b0d80432c79 87 /* reset HASH processor */
wolfSSL 4:1b0d80432c79 88 HASH->CR |= HASH_CR_INIT;
wolfSSL 4:1b0d80432c79 89 }
wolfSSL 4:1b0d80432c79 90
wolfSSL 4:1b0d80432c79 91 void wc_Md5Update(Md5* md5, const byte* data, word32 len)
wolfSSL 4:1b0d80432c79 92 {
wolfSSL 4:1b0d80432c79 93 word32 i = 0;
wolfSSL 4:1b0d80432c79 94 word32 fill = 0;
wolfSSL 4:1b0d80432c79 95 word32 diff = 0;
wolfSSL 4:1b0d80432c79 96
wolfSSL 4:1b0d80432c79 97 /* if saved partial block is available */
wolfSSL 4:1b0d80432c79 98 if (md5->buffLen > 0) {
wolfSSL 4:1b0d80432c79 99 fill = 4 - md5->buffLen;
wolfSSL 4:1b0d80432c79 100
wolfSSL 4:1b0d80432c79 101 /* if enough data to fill, fill and push to FIFO */
wolfSSL 4:1b0d80432c79 102 if (fill <= len) {
wolfSSL 4:1b0d80432c79 103 XMEMCPY((byte*)md5->buffer + md5->buffLen, data, fill);
wolfSSL 4:1b0d80432c79 104 HASH_DataIn(*(uint32_t*)md5->buffer);
wolfSSL 4:1b0d80432c79 105
wolfSSL 4:1b0d80432c79 106 data += fill;
wolfSSL 4:1b0d80432c79 107 len -= fill;
wolfSSL 4:1b0d80432c79 108 md5->loLen += 4;
wolfSSL 4:1b0d80432c79 109 md5->buffLen = 0;
wolfSSL 4:1b0d80432c79 110 } else {
wolfSSL 4:1b0d80432c79 111 /* append partial to existing stored block */
wolfSSL 4:1b0d80432c79 112 XMEMCPY((byte*)md5->buffer + md5->buffLen, data, len);
wolfSSL 4:1b0d80432c79 113 md5->buffLen += len;
wolfSSL 4:1b0d80432c79 114 return;
wolfSSL 4:1b0d80432c79 115 }
wolfSSL 4:1b0d80432c79 116 }
wolfSSL 4:1b0d80432c79 117
wolfSSL 4:1b0d80432c79 118 /* write input block in the IN FIFO */
wolfSSL 4:1b0d80432c79 119 for (i = 0; i < len; i += 4)
wolfSSL 4:1b0d80432c79 120 {
wolfSSL 4:1b0d80432c79 121 diff = len - i;
wolfSSL 4:1b0d80432c79 122 if (diff < 4) {
wolfSSL 4:1b0d80432c79 123 /* store incomplete last block, not yet in FIFO */
wolfSSL 4:1b0d80432c79 124 XMEMSET(md5->buffer, 0, MD5_REG_SIZE);
wolfSSL 4:1b0d80432c79 125 XMEMCPY((byte*)md5->buffer, data, diff);
wolfSSL 4:1b0d80432c79 126 md5->buffLen = diff;
wolfSSL 4:1b0d80432c79 127 } else {
wolfSSL 4:1b0d80432c79 128 HASH_DataIn(*(uint32_t*)data);
wolfSSL 4:1b0d80432c79 129 data+=4;
wolfSSL 4:1b0d80432c79 130 }
wolfSSL 4:1b0d80432c79 131 }
wolfSSL 4:1b0d80432c79 132
wolfSSL 4:1b0d80432c79 133 /* keep track of total data length thus far */
wolfSSL 4:1b0d80432c79 134 md5->loLen += (len - md5->buffLen);
wolfSSL 4:1b0d80432c79 135 }
wolfSSL 4:1b0d80432c79 136
wolfSSL 4:1b0d80432c79 137 void wc_Md5Final(Md5* md5, byte* hash)
wolfSSL 4:1b0d80432c79 138 {
wolfSSL 4:1b0d80432c79 139 __IO uint16_t nbvalidbitsdata = 0;
wolfSSL 4:1b0d80432c79 140
wolfSSL 4:1b0d80432c79 141 /* finish reading any trailing bytes into FIFO */
wolfSSL 4:1b0d80432c79 142 if (md5->buffLen > 0) {
wolfSSL 4:1b0d80432c79 143 HASH_DataIn(*(uint32_t*)md5->buffer);
wolfSSL 4:1b0d80432c79 144 md5->loLen += md5->buffLen;
wolfSSL 4:1b0d80432c79 145 }
wolfSSL 4:1b0d80432c79 146
wolfSSL 4:1b0d80432c79 147 /* calculate number of valid bits in last word of input data */
wolfSSL 4:1b0d80432c79 148 nbvalidbitsdata = 8 * (md5->loLen % MD5_REG_SIZE);
wolfSSL 4:1b0d80432c79 149
wolfSSL 4:1b0d80432c79 150 /* configure number of valid bits in last word of the data */
wolfSSL 4:1b0d80432c79 151 HASH_SetLastWordValidBitsNbr(nbvalidbitsdata);
wolfSSL 4:1b0d80432c79 152
wolfSSL 4:1b0d80432c79 153 /* start HASH processor */
wolfSSL 4:1b0d80432c79 154 HASH_StartDigest();
wolfSSL 4:1b0d80432c79 155
wolfSSL 4:1b0d80432c79 156 /* wait until Busy flag == RESET */
wolfSSL 4:1b0d80432c79 157 while (HASH_GetFlagStatus(HASH_FLAG_BUSY) != RESET) {}
wolfSSL 4:1b0d80432c79 158
wolfSSL 4:1b0d80432c79 159 /* read message digest */
wolfSSL 4:1b0d80432c79 160 md5->digest[0] = HASH->HR[0];
wolfSSL 4:1b0d80432c79 161 md5->digest[1] = HASH->HR[1];
wolfSSL 4:1b0d80432c79 162 md5->digest[2] = HASH->HR[2];
wolfSSL 4:1b0d80432c79 163 md5->digest[3] = HASH->HR[3];
wolfSSL 4:1b0d80432c79 164
wolfSSL 4:1b0d80432c79 165 ByteReverseWords(md5->digest, md5->digest, MD5_DIGEST_SIZE);
wolfSSL 4:1b0d80432c79 166
wolfSSL 4:1b0d80432c79 167 XMEMCPY(hash, md5->digest, MD5_DIGEST_SIZE);
wolfSSL 4:1b0d80432c79 168
wolfSSL 4:1b0d80432c79 169 wc_InitMd5(md5); /* reset state */
wolfSSL 4:1b0d80432c79 170 }
wolfSSL 4:1b0d80432c79 171
wolfSSL 4:1b0d80432c79 172 #else /* CTaoCrypt software implementation */
wolfSSL 4:1b0d80432c79 173
wolfSSL 4:1b0d80432c79 174 #ifndef WOLFSSL_HAVE_MIN
wolfSSL 4:1b0d80432c79 175 #define WOLFSSL_HAVE_MIN
wolfSSL 4:1b0d80432c79 176
wolfSSL 4:1b0d80432c79 177 static INLINE word32 min(word32 a, word32 b)
wolfSSL 4:1b0d80432c79 178 {
wolfSSL 4:1b0d80432c79 179 return a > b ? b : a;
wolfSSL 4:1b0d80432c79 180 }
wolfSSL 4:1b0d80432c79 181
wolfSSL 4:1b0d80432c79 182 #endif /* WOLFSSL_HAVE_MIN */
wolfSSL 4:1b0d80432c79 183
wolfSSL 4:1b0d80432c79 184 void wc_InitMd5(Md5* md5)
wolfSSL 4:1b0d80432c79 185 {
wolfSSL 4:1b0d80432c79 186 md5->digest[0] = 0x67452301L;
wolfSSL 4:1b0d80432c79 187 md5->digest[1] = 0xefcdab89L;
wolfSSL 4:1b0d80432c79 188 md5->digest[2] = 0x98badcfeL;
wolfSSL 4:1b0d80432c79 189 md5->digest[3] = 0x10325476L;
wolfSSL 4:1b0d80432c79 190
wolfSSL 4:1b0d80432c79 191 md5->buffLen = 0;
wolfSSL 4:1b0d80432c79 192 md5->loLen = 0;
wolfSSL 4:1b0d80432c79 193 md5->hiLen = 0;
wolfSSL 4:1b0d80432c79 194 }
wolfSSL 4:1b0d80432c79 195
wolfSSL 4:1b0d80432c79 196 #ifdef FREESCALE_MMCAU
wolfSSL 4:1b0d80432c79 197 static int Transform(Md5* md5, byte* data)
wolfSSL 4:1b0d80432c79 198 {
wolfSSL 4:1b0d80432c79 199 int ret = wolfSSL_CryptHwMutexLock();
wolfSSL 4:1b0d80432c79 200 if(ret == 0) {
wolfSSL 4:1b0d80432c79 201 cau_md5_hash_n(data, 1, (unsigned char*)md5->digest);
wolfSSL 4:1b0d80432c79 202 wolfSSL_CryptHwMutexUnLock();
wolfSSL 4:1b0d80432c79 203 }
wolfSSL 4:1b0d80432c79 204 return ret;
wolfSSL 4:1b0d80432c79 205 }
wolfSSL 4:1b0d80432c79 206 #endif /* FREESCALE_MMCAU */
wolfSSL 4:1b0d80432c79 207
wolfSSL 4:1b0d80432c79 208 #ifndef FREESCALE_MMCAU
wolfSSL 4:1b0d80432c79 209
wolfSSL 4:1b0d80432c79 210 static void Transform(Md5* md5)
wolfSSL 4:1b0d80432c79 211 {
wolfSSL 4:1b0d80432c79 212 #define F1(x, y, z) (z ^ (x & (y ^ z)))
wolfSSL 4:1b0d80432c79 213 #define F2(x, y, z) F1(z, x, y)
wolfSSL 4:1b0d80432c79 214 #define F3(x, y, z) (x ^ y ^ z)
wolfSSL 4:1b0d80432c79 215 #define F4(x, y, z) (y ^ (x | ~z))
wolfSSL 4:1b0d80432c79 216
wolfSSL 4:1b0d80432c79 217 #define MD5STEP(f, w, x, y, z, data, s) \
wolfSSL 4:1b0d80432c79 218 w = rotlFixed(w + f(x, y, z) + data, s) + x
wolfSSL 4:1b0d80432c79 219
wolfSSL 4:1b0d80432c79 220 /* Copy context->state[] to working vars */
wolfSSL 4:1b0d80432c79 221 word32 a = md5->digest[0];
wolfSSL 4:1b0d80432c79 222 word32 b = md5->digest[1];
wolfSSL 4:1b0d80432c79 223 word32 c = md5->digest[2];
wolfSSL 4:1b0d80432c79 224 word32 d = md5->digest[3];
wolfSSL 4:1b0d80432c79 225
wolfSSL 4:1b0d80432c79 226 MD5STEP(F1, a, b, c, d, md5->buffer[0] + 0xd76aa478, 7);
wolfSSL 4:1b0d80432c79 227 MD5STEP(F1, d, a, b, c, md5->buffer[1] + 0xe8c7b756, 12);
wolfSSL 4:1b0d80432c79 228 MD5STEP(F1, c, d, a, b, md5->buffer[2] + 0x242070db, 17);
wolfSSL 4:1b0d80432c79 229 MD5STEP(F1, b, c, d, a, md5->buffer[3] + 0xc1bdceee, 22);
wolfSSL 4:1b0d80432c79 230 MD5STEP(F1, a, b, c, d, md5->buffer[4] + 0xf57c0faf, 7);
wolfSSL 4:1b0d80432c79 231 MD5STEP(F1, d, a, b, c, md5->buffer[5] + 0x4787c62a, 12);
wolfSSL 4:1b0d80432c79 232 MD5STEP(F1, c, d, a, b, md5->buffer[6] + 0xa8304613, 17);
wolfSSL 4:1b0d80432c79 233 MD5STEP(F1, b, c, d, a, md5->buffer[7] + 0xfd469501, 22);
wolfSSL 4:1b0d80432c79 234 MD5STEP(F1, a, b, c, d, md5->buffer[8] + 0x698098d8, 7);
wolfSSL 4:1b0d80432c79 235 MD5STEP(F1, d, a, b, c, md5->buffer[9] + 0x8b44f7af, 12);
wolfSSL 4:1b0d80432c79 236 MD5STEP(F1, c, d, a, b, md5->buffer[10] + 0xffff5bb1, 17);
wolfSSL 4:1b0d80432c79 237 MD5STEP(F1, b, c, d, a, md5->buffer[11] + 0x895cd7be, 22);
wolfSSL 4:1b0d80432c79 238 MD5STEP(F1, a, b, c, d, md5->buffer[12] + 0x6b901122, 7);
wolfSSL 4:1b0d80432c79 239 MD5STEP(F1, d, a, b, c, md5->buffer[13] + 0xfd987193, 12);
wolfSSL 4:1b0d80432c79 240 MD5STEP(F1, c, d, a, b, md5->buffer[14] + 0xa679438e, 17);
wolfSSL 4:1b0d80432c79 241 MD5STEP(F1, b, c, d, a, md5->buffer[15] + 0x49b40821, 22);
wolfSSL 4:1b0d80432c79 242
wolfSSL 4:1b0d80432c79 243 MD5STEP(F2, a, b, c, d, md5->buffer[1] + 0xf61e2562, 5);
wolfSSL 4:1b0d80432c79 244 MD5STEP(F2, d, a, b, c, md5->buffer[6] + 0xc040b340, 9);
wolfSSL 4:1b0d80432c79 245 MD5STEP(F2, c, d, a, b, md5->buffer[11] + 0x265e5a51, 14);
wolfSSL 4:1b0d80432c79 246 MD5STEP(F2, b, c, d, a, md5->buffer[0] + 0xe9b6c7aa, 20);
wolfSSL 4:1b0d80432c79 247 MD5STEP(F2, a, b, c, d, md5->buffer[5] + 0xd62f105d, 5);
wolfSSL 4:1b0d80432c79 248 MD5STEP(F2, d, a, b, c, md5->buffer[10] + 0x02441453, 9);
wolfSSL 4:1b0d80432c79 249 MD5STEP(F2, c, d, a, b, md5->buffer[15] + 0xd8a1e681, 14);
wolfSSL 4:1b0d80432c79 250 MD5STEP(F2, b, c, d, a, md5->buffer[4] + 0xe7d3fbc8, 20);
wolfSSL 4:1b0d80432c79 251 MD5STEP(F2, a, b, c, d, md5->buffer[9] + 0x21e1cde6, 5);
wolfSSL 4:1b0d80432c79 252 MD5STEP(F2, d, a, b, c, md5->buffer[14] + 0xc33707d6, 9);
wolfSSL 4:1b0d80432c79 253 MD5STEP(F2, c, d, a, b, md5->buffer[3] + 0xf4d50d87, 14);
wolfSSL 4:1b0d80432c79 254 MD5STEP(F2, b, c, d, a, md5->buffer[8] + 0x455a14ed, 20);
wolfSSL 4:1b0d80432c79 255 MD5STEP(F2, a, b, c, d, md5->buffer[13] + 0xa9e3e905, 5);
wolfSSL 4:1b0d80432c79 256 MD5STEP(F2, d, a, b, c, md5->buffer[2] + 0xfcefa3f8, 9);
wolfSSL 4:1b0d80432c79 257 MD5STEP(F2, c, d, a, b, md5->buffer[7] + 0x676f02d9, 14);
wolfSSL 4:1b0d80432c79 258 MD5STEP(F2, b, c, d, a, md5->buffer[12] + 0x8d2a4c8a, 20);
wolfSSL 4:1b0d80432c79 259
wolfSSL 4:1b0d80432c79 260 MD5STEP(F3, a, b, c, d, md5->buffer[5] + 0xfffa3942, 4);
wolfSSL 4:1b0d80432c79 261 MD5STEP(F3, d, a, b, c, md5->buffer[8] + 0x8771f681, 11);
wolfSSL 4:1b0d80432c79 262 MD5STEP(F3, c, d, a, b, md5->buffer[11] + 0x6d9d6122, 16);
wolfSSL 4:1b0d80432c79 263 MD5STEP(F3, b, c, d, a, md5->buffer[14] + 0xfde5380c, 23);
wolfSSL 4:1b0d80432c79 264 MD5STEP(F3, a, b, c, d, md5->buffer[1] + 0xa4beea44, 4);
wolfSSL 4:1b0d80432c79 265 MD5STEP(F3, d, a, b, c, md5->buffer[4] + 0x4bdecfa9, 11);
wolfSSL 4:1b0d80432c79 266 MD5STEP(F3, c, d, a, b, md5->buffer[7] + 0xf6bb4b60, 16);
wolfSSL 4:1b0d80432c79 267 MD5STEP(F3, b, c, d, a, md5->buffer[10] + 0xbebfbc70, 23);
wolfSSL 4:1b0d80432c79 268 MD5STEP(F3, a, b, c, d, md5->buffer[13] + 0x289b7ec6, 4);
wolfSSL 4:1b0d80432c79 269 MD5STEP(F3, d, a, b, c, md5->buffer[0] + 0xeaa127fa, 11);
wolfSSL 4:1b0d80432c79 270 MD5STEP(F3, c, d, a, b, md5->buffer[3] + 0xd4ef3085, 16);
wolfSSL 4:1b0d80432c79 271 MD5STEP(F3, b, c, d, a, md5->buffer[6] + 0x04881d05, 23);
wolfSSL 4:1b0d80432c79 272 MD5STEP(F3, a, b, c, d, md5->buffer[9] + 0xd9d4d039, 4);
wolfSSL 4:1b0d80432c79 273 MD5STEP(F3, d, a, b, c, md5->buffer[12] + 0xe6db99e5, 11);
wolfSSL 4:1b0d80432c79 274 MD5STEP(F3, c, d, a, b, md5->buffer[15] + 0x1fa27cf8, 16);
wolfSSL 4:1b0d80432c79 275 MD5STEP(F3, b, c, d, a, md5->buffer[2] + 0xc4ac5665, 23);
wolfSSL 4:1b0d80432c79 276
wolfSSL 4:1b0d80432c79 277 MD5STEP(F4, a, b, c, d, md5->buffer[0] + 0xf4292244, 6);
wolfSSL 4:1b0d80432c79 278 MD5STEP(F4, d, a, b, c, md5->buffer[7] + 0x432aff97, 10);
wolfSSL 4:1b0d80432c79 279 MD5STEP(F4, c, d, a, b, md5->buffer[14] + 0xab9423a7, 15);
wolfSSL 4:1b0d80432c79 280 MD5STEP(F4, b, c, d, a, md5->buffer[5] + 0xfc93a039, 21);
wolfSSL 4:1b0d80432c79 281 MD5STEP(F4, a, b, c, d, md5->buffer[12] + 0x655b59c3, 6);
wolfSSL 4:1b0d80432c79 282 MD5STEP(F4, d, a, b, c, md5->buffer[3] + 0x8f0ccc92, 10);
wolfSSL 4:1b0d80432c79 283 MD5STEP(F4, c, d, a, b, md5->buffer[10] + 0xffeff47d, 15);
wolfSSL 4:1b0d80432c79 284 MD5STEP(F4, b, c, d, a, md5->buffer[1] + 0x85845dd1, 21);
wolfSSL 4:1b0d80432c79 285 MD5STEP(F4, a, b, c, d, md5->buffer[8] + 0x6fa87e4f, 6);
wolfSSL 4:1b0d80432c79 286 MD5STEP(F4, d, a, b, c, md5->buffer[15] + 0xfe2ce6e0, 10);
wolfSSL 4:1b0d80432c79 287 MD5STEP(F4, c, d, a, b, md5->buffer[6] + 0xa3014314, 15);
wolfSSL 4:1b0d80432c79 288 MD5STEP(F4, b, c, d, a, md5->buffer[13] + 0x4e0811a1, 21);
wolfSSL 4:1b0d80432c79 289 MD5STEP(F4, a, b, c, d, md5->buffer[4] + 0xf7537e82, 6);
wolfSSL 4:1b0d80432c79 290 MD5STEP(F4, d, a, b, c, md5->buffer[11] + 0xbd3af235, 10);
wolfSSL 4:1b0d80432c79 291 MD5STEP(F4, c, d, a, b, md5->buffer[2] + 0x2ad7d2bb, 15);
wolfSSL 4:1b0d80432c79 292 MD5STEP(F4, b, c, d, a, md5->buffer[9] + 0xeb86d391, 21);
wolfSSL 4:1b0d80432c79 293
wolfSSL 4:1b0d80432c79 294 /* Add the working vars back into digest state[] */
wolfSSL 4:1b0d80432c79 295 md5->digest[0] += a;
wolfSSL 4:1b0d80432c79 296 md5->digest[1] += b;
wolfSSL 4:1b0d80432c79 297 md5->digest[2] += c;
wolfSSL 4:1b0d80432c79 298 md5->digest[3] += d;
wolfSSL 4:1b0d80432c79 299 }
wolfSSL 4:1b0d80432c79 300
wolfSSL 4:1b0d80432c79 301 #endif /* FREESCALE_MMCAU */
wolfSSL 4:1b0d80432c79 302
wolfSSL 4:1b0d80432c79 303
wolfSSL 4:1b0d80432c79 304 static INLINE void AddLength(Md5* md5, word32 len)
wolfSSL 4:1b0d80432c79 305 {
wolfSSL 4:1b0d80432c79 306 word32 tmp = md5->loLen;
wolfSSL 4:1b0d80432c79 307 if ( (md5->loLen += len) < tmp)
wolfSSL 4:1b0d80432c79 308 md5->hiLen++; /* carry low to high */
wolfSSL 4:1b0d80432c79 309 }
wolfSSL 4:1b0d80432c79 310
wolfSSL 4:1b0d80432c79 311
wolfSSL 4:1b0d80432c79 312 void wc_Md5Update(Md5* md5, const byte* data, word32 len)
wolfSSL 4:1b0d80432c79 313 {
wolfSSL 4:1b0d80432c79 314 /* do block size increments */
wolfSSL 4:1b0d80432c79 315 byte* local = (byte*)md5->buffer;
wolfSSL 4:1b0d80432c79 316
wolfSSL 4:1b0d80432c79 317 while (len) {
wolfSSL 4:1b0d80432c79 318 word32 add = min(len, MD5_BLOCK_SIZE - md5->buffLen);
wolfSSL 4:1b0d80432c79 319 XMEMCPY(&local[md5->buffLen], data, add);
wolfSSL 4:1b0d80432c79 320
wolfSSL 4:1b0d80432c79 321 md5->buffLen += add;
wolfSSL 4:1b0d80432c79 322 data += add;
wolfSSL 4:1b0d80432c79 323 len -= add;
wolfSSL 4:1b0d80432c79 324
wolfSSL 4:1b0d80432c79 325 if (md5->buffLen == MD5_BLOCK_SIZE) {
wolfSSL 4:1b0d80432c79 326 #if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU)
wolfSSL 4:1b0d80432c79 327 ByteReverseWords(md5->buffer, md5->buffer, MD5_BLOCK_SIZE);
wolfSSL 4:1b0d80432c79 328 #endif
wolfSSL 4:1b0d80432c79 329 XTRANSFORM(md5, local);
wolfSSL 4:1b0d80432c79 330 AddLength(md5, MD5_BLOCK_SIZE);
wolfSSL 4:1b0d80432c79 331 md5->buffLen = 0;
wolfSSL 4:1b0d80432c79 332 }
wolfSSL 4:1b0d80432c79 333 }
wolfSSL 4:1b0d80432c79 334 }
wolfSSL 4:1b0d80432c79 335
wolfSSL 4:1b0d80432c79 336
wolfSSL 4:1b0d80432c79 337 void wc_Md5Final(Md5* md5, byte* hash)
wolfSSL 4:1b0d80432c79 338 {
wolfSSL 4:1b0d80432c79 339 byte* local = (byte*)md5->buffer;
wolfSSL 4:1b0d80432c79 340
wolfSSL 4:1b0d80432c79 341 AddLength(md5, md5->buffLen); /* before adding pads */
wolfSSL 4:1b0d80432c79 342
wolfSSL 4:1b0d80432c79 343 local[md5->buffLen++] = 0x80; /* add 1 */
wolfSSL 4:1b0d80432c79 344
wolfSSL 4:1b0d80432c79 345 /* pad with zeros */
wolfSSL 4:1b0d80432c79 346 if (md5->buffLen > MD5_PAD_SIZE) {
wolfSSL 4:1b0d80432c79 347 XMEMSET(&local[md5->buffLen], 0, MD5_BLOCK_SIZE - md5->buffLen);
wolfSSL 4:1b0d80432c79 348 md5->buffLen += MD5_BLOCK_SIZE - md5->buffLen;
wolfSSL 4:1b0d80432c79 349
wolfSSL 4:1b0d80432c79 350 #if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU)
wolfSSL 4:1b0d80432c79 351 ByteReverseWords(md5->buffer, md5->buffer, MD5_BLOCK_SIZE);
wolfSSL 4:1b0d80432c79 352 #endif
wolfSSL 4:1b0d80432c79 353 XTRANSFORM(md5, local);
wolfSSL 4:1b0d80432c79 354 md5->buffLen = 0;
wolfSSL 4:1b0d80432c79 355 }
wolfSSL 4:1b0d80432c79 356 XMEMSET(&local[md5->buffLen], 0, MD5_PAD_SIZE - md5->buffLen);
wolfSSL 4:1b0d80432c79 357
wolfSSL 4:1b0d80432c79 358 /* put lengths in bits */
wolfSSL 4:1b0d80432c79 359 md5->hiLen = (md5->loLen >> (8*sizeof(md5->loLen) - 3)) +
wolfSSL 4:1b0d80432c79 360 (md5->hiLen << 3);
wolfSSL 4:1b0d80432c79 361 md5->loLen = md5->loLen << 3;
wolfSSL 4:1b0d80432c79 362
wolfSSL 4:1b0d80432c79 363 /* store lengths */
wolfSSL 4:1b0d80432c79 364 #if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU)
wolfSSL 4:1b0d80432c79 365 ByteReverseWords(md5->buffer, md5->buffer, MD5_BLOCK_SIZE);
wolfSSL 4:1b0d80432c79 366 #endif
wolfSSL 4:1b0d80432c79 367 /* ! length ordering dependent on digest endian type ! */
wolfSSL 4:1b0d80432c79 368 XMEMCPY(&local[MD5_PAD_SIZE], &md5->loLen, sizeof(word32));
wolfSSL 4:1b0d80432c79 369 XMEMCPY(&local[MD5_PAD_SIZE + sizeof(word32)], &md5->hiLen, sizeof(word32));
wolfSSL 4:1b0d80432c79 370
wolfSSL 4:1b0d80432c79 371 XTRANSFORM(md5, local);
wolfSSL 4:1b0d80432c79 372 #ifdef BIG_ENDIAN_ORDER
wolfSSL 4:1b0d80432c79 373 ByteReverseWords(md5->digest, md5->digest, MD5_DIGEST_SIZE);
wolfSSL 4:1b0d80432c79 374 #endif
wolfSSL 4:1b0d80432c79 375 XMEMCPY(hash, md5->digest, MD5_DIGEST_SIZE);
wolfSSL 4:1b0d80432c79 376
wolfSSL 4:1b0d80432c79 377 wc_InitMd5(md5); /* reset state */
wolfSSL 4:1b0d80432c79 378 }
wolfSSL 4:1b0d80432c79 379
wolfSSL 4:1b0d80432c79 380 #endif /* STM32F2_HASH */
wolfSSL 4:1b0d80432c79 381
wolfSSL 4:1b0d80432c79 382
wolfSSL 4:1b0d80432c79 383 int wc_Md5Hash(const byte* data, word32 len, byte* hash)
wolfSSL 4:1b0d80432c79 384 {
wolfSSL 4:1b0d80432c79 385 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 4:1b0d80432c79 386 Md5* md5;
wolfSSL 4:1b0d80432c79 387 #else
wolfSSL 4:1b0d80432c79 388 Md5 md5[1];
wolfSSL 4:1b0d80432c79 389 #endif
wolfSSL 4:1b0d80432c79 390
wolfSSL 4:1b0d80432c79 391 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 4:1b0d80432c79 392 md5 = (Md5*)XMALLOC(sizeof(Md5), NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 4:1b0d80432c79 393 if (md5 == NULL)
wolfSSL 4:1b0d80432c79 394 return MEMORY_E;
wolfSSL 4:1b0d80432c79 395 #endif
wolfSSL 4:1b0d80432c79 396
wolfSSL 4:1b0d80432c79 397 wc_InitMd5(md5);
wolfSSL 4:1b0d80432c79 398 wc_Md5Update(md5, data, len);
wolfSSL 4:1b0d80432c79 399 wc_Md5Final(md5, hash);
wolfSSL 4:1b0d80432c79 400
wolfSSL 4:1b0d80432c79 401 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 4:1b0d80432c79 402 XFREE(md5, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 4:1b0d80432c79 403 #endif
wolfSSL 4:1b0d80432c79 404
wolfSSL 4:1b0d80432c79 405 return 0;
wolfSSL 4:1b0d80432c79 406 }
wolfSSL 4:1b0d80432c79 407
wolfSSL 4:1b0d80432c79 408 #endif /* WOLFSSL_TI_HASH */
wolfSSL 4:1b0d80432c79 409
wolfSSL 4:1b0d80432c79 410 #endif /* NO_MD5 */
wolfSSL 4:1b0d80432c79 411