3 * Copyright (C) 2006-2014 wolfSSL Inc.
5 * This file is part of CyaSSL.
7 * CyaSSL is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * CyaSSL is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
27 #include <cyassl/ctaocrypt/settings.h>
31 #ifdef CYASSL_PIC32MZ_HASH
32 #define InitMd5 InitMd5_sw
33 #define Md5Update Md5Update_sw
34 #define Md5Final Md5Final_sw
37 #include <cyassl/ctaocrypt/md5.h>
38 #include <cyassl/ctaocrypt/error-crypt.h>
41 #include <cyassl/ctaocrypt/misc.h>
43 #include <ctaocrypt/src/misc.c>
46 #ifdef FREESCALE_MMCAU
48 #define XTRANSFORM(S,B) cau_md5_hash_n((B), 1, (unsigned char*)(S)->digest)
50 #define XTRANSFORM(S,B) Transform((S))
56 * STM32F2 hardware MD5 support through the STM32F2 standard peripheral
57 * library. Documentation located in STM32F2xx Standard Peripheral Library
58 * document (See note in README).
60 #include "stm32f2xx.h"
62 void InitMd5(Md5* md5)
64 /* STM32F2 struct notes:
65 * md5->buffer = first 4 bytes used to hold partial block if needed
66 * md5->buffLen = num bytes currently stored in md5->buffer
67 * md5->loLen = num bytes that have been written to STM32 FIFO
69 XMEMSET(md5->buffer, 0, MD5_REG_SIZE);
74 /* initialize HASH peripheral */
77 /* configure algo used, algo mode, datatype */
78 HASH->CR &= ~ (HASH_CR_ALGO | HASH_CR_DATATYPE | HASH_CR_MODE);
79 HASH->CR |= (HASH_AlgoSelection_MD5 | HASH_AlgoMode_HASH
82 /* reset HASH processor */
83 HASH->CR |= HASH_CR_INIT;
86 void Md5Update(Md5* md5, const byte* data, word32 len)
92 /* if saved partial block is available */
93 if (md5->buffLen > 0) {
94 fill = 4 - md5->buffLen;
96 /* if enough data to fill, fill and push to FIFO */
98 XMEMCPY((byte*)md5->buffer + md5->buffLen, data, fill);
99 HASH_DataIn(*(uint32_t*)md5->buffer);
106 /* append partial to existing stored block */
107 XMEMCPY((byte*)md5->buffer + md5->buffLen, data, len);
113 /* write input block in the IN FIFO */
114 for (i = 0; i < len; i += 4)
118 /* store incomplete last block, not yet in FIFO */
119 XMEMSET(md5->buffer, 0, MD5_REG_SIZE);
120 XMEMCPY((byte*)md5->buffer, data, diff);
123 HASH_DataIn(*(uint32_t*)data);
128 /* keep track of total data length thus far */
129 md5->loLen += (len - md5->buffLen);
132 void Md5Final(Md5* md5, byte* hash)
134 __IO uint16_t nbvalidbitsdata = 0;
136 /* finish reading any trailing bytes into FIFO */
137 if (md5->buffLen > 0) {
138 HASH_DataIn(*(uint32_t*)md5->buffer);
139 md5->loLen += md5->buffLen;
142 /* calculate number of valid bits in last word of input data */
143 nbvalidbitsdata = 8 * (md5->loLen % MD5_REG_SIZE);
145 /* configure number of valid bits in last word of the data */
146 HASH_SetLastWordValidBitsNbr(nbvalidbitsdata);
148 /* start HASH processor */
151 /* wait until Busy flag == RESET */
152 while (HASH_GetFlagStatus(HASH_FLAG_BUSY) != RESET) {}
154 /* read message digest */
155 md5->digest[0] = HASH->HR[0];
156 md5->digest[1] = HASH->HR[1];
157 md5->digest[2] = HASH->HR[2];
158 md5->digest[3] = HASH->HR[3];
160 ByteReverseWords(md5->digest, md5->digest, MD5_DIGEST_SIZE);
162 XMEMCPY(hash, md5->digest, MD5_DIGEST_SIZE);
164 InitMd5(md5); /* reset state */
167 #else /* CTaoCrypt software implementation */
171 static INLINE word32 min(word32 a, word32 b)
173 return a > b ? b : a;
179 void InitMd5(Md5* md5)
181 md5->digest[0] = 0x67452301L;
182 md5->digest[1] = 0xefcdab89L;
183 md5->digest[2] = 0x98badcfeL;
184 md5->digest[3] = 0x10325476L;
191 #ifndef FREESCALE_MMCAU
193 static void Transform(Md5* md5)
195 #define F1(x, y, z) (z ^ (x & (y ^ z)))
196 #define F2(x, y, z) F1(z, x, y)
197 #define F3(x, y, z) (x ^ y ^ z)
198 #define F4(x, y, z) (y ^ (x | ~z))
200 #define MD5STEP(f, w, x, y, z, data, s) \
201 w = rotlFixed(w + f(x, y, z) + data, s) + x
203 /* Copy context->state[] to working vars */
204 word32 a = md5->digest[0];
205 word32 b = md5->digest[1];
206 word32 c = md5->digest[2];
207 word32 d = md5->digest[3];
209 MD5STEP(F1, a, b, c, d, md5->buffer[0] + 0xd76aa478, 7);
210 MD5STEP(F1, d, a, b, c, md5->buffer[1] + 0xe8c7b756, 12);
211 MD5STEP(F1, c, d, a, b, md5->buffer[2] + 0x242070db, 17);
212 MD5STEP(F1, b, c, d, a, md5->buffer[3] + 0xc1bdceee, 22);
213 MD5STEP(F1, a, b, c, d, md5->buffer[4] + 0xf57c0faf, 7);
214 MD5STEP(F1, d, a, b, c, md5->buffer[5] + 0x4787c62a, 12);
215 MD5STEP(F1, c, d, a, b, md5->buffer[6] + 0xa8304613, 17);
216 MD5STEP(F1, b, c, d, a, md5->buffer[7] + 0xfd469501, 22);
217 MD5STEP(F1, a, b, c, d, md5->buffer[8] + 0x698098d8, 7);
218 MD5STEP(F1, d, a, b, c, md5->buffer[9] + 0x8b44f7af, 12);
219 MD5STEP(F1, c, d, a, b, md5->buffer[10] + 0xffff5bb1, 17);
220 MD5STEP(F1, b, c, d, a, md5->buffer[11] + 0x895cd7be, 22);
221 MD5STEP(F1, a, b, c, d, md5->buffer[12] + 0x6b901122, 7);
222 MD5STEP(F1, d, a, b, c, md5->buffer[13] + 0xfd987193, 12);
223 MD5STEP(F1, c, d, a, b, md5->buffer[14] + 0xa679438e, 17);
224 MD5STEP(F1, b, c, d, a, md5->buffer[15] + 0x49b40821, 22);
226 MD5STEP(F2, a, b, c, d, md5->buffer[1] + 0xf61e2562, 5);
227 MD5STEP(F2, d, a, b, c, md5->buffer[6] + 0xc040b340, 9);
228 MD5STEP(F2, c, d, a, b, md5->buffer[11] + 0x265e5a51, 14);
229 MD5STEP(F2, b, c, d, a, md5->buffer[0] + 0xe9b6c7aa, 20);
230 MD5STEP(F2, a, b, c, d, md5->buffer[5] + 0xd62f105d, 5);
231 MD5STEP(F2, d, a, b, c, md5->buffer[10] + 0x02441453, 9);
232 MD5STEP(F2, c, d, a, b, md5->buffer[15] + 0xd8a1e681, 14);
233 MD5STEP(F2, b, c, d, a, md5->buffer[4] + 0xe7d3fbc8, 20);
234 MD5STEP(F2, a, b, c, d, md5->buffer[9] + 0x21e1cde6, 5);
235 MD5STEP(F2, d, a, b, c, md5->buffer[14] + 0xc33707d6, 9);
236 MD5STEP(F2, c, d, a, b, md5->buffer[3] + 0xf4d50d87, 14);
237 MD5STEP(F2, b, c, d, a, md5->buffer[8] + 0x455a14ed, 20);
238 MD5STEP(F2, a, b, c, d, md5->buffer[13] + 0xa9e3e905, 5);
239 MD5STEP(F2, d, a, b, c, md5->buffer[2] + 0xfcefa3f8, 9);
240 MD5STEP(F2, c, d, a, b, md5->buffer[7] + 0x676f02d9, 14);
241 MD5STEP(F2, b, c, d, a, md5->buffer[12] + 0x8d2a4c8a, 20);
243 MD5STEP(F3, a, b, c, d, md5->buffer[5] + 0xfffa3942, 4);
244 MD5STEP(F3, d, a, b, c, md5->buffer[8] + 0x8771f681, 11);
245 MD5STEP(F3, c, d, a, b, md5->buffer[11] + 0x6d9d6122, 16);
246 MD5STEP(F3, b, c, d, a, md5->buffer[14] + 0xfde5380c, 23);
247 MD5STEP(F3, a, b, c, d, md5->buffer[1] + 0xa4beea44, 4);
248 MD5STEP(F3, d, a, b, c, md5->buffer[4] + 0x4bdecfa9, 11);
249 MD5STEP(F3, c, d, a, b, md5->buffer[7] + 0xf6bb4b60, 16);
250 MD5STEP(F3, b, c, d, a, md5->buffer[10] + 0xbebfbc70, 23);
251 MD5STEP(F3, a, b, c, d, md5->buffer[13] + 0x289b7ec6, 4);
252 MD5STEP(F3, d, a, b, c, md5->buffer[0] + 0xeaa127fa, 11);
253 MD5STEP(F3, c, d, a, b, md5->buffer[3] + 0xd4ef3085, 16);
254 MD5STEP(F3, b, c, d, a, md5->buffer[6] + 0x04881d05, 23);
255 MD5STEP(F3, a, b, c, d, md5->buffer[9] + 0xd9d4d039, 4);
256 MD5STEP(F3, d, a, b, c, md5->buffer[12] + 0xe6db99e5, 11);
257 MD5STEP(F3, c, d, a, b, md5->buffer[15] + 0x1fa27cf8, 16);
258 MD5STEP(F3, b, c, d, a, md5->buffer[2] + 0xc4ac5665, 23);
260 MD5STEP(F4, a, b, c, d, md5->buffer[0] + 0xf4292244, 6);
261 MD5STEP(F4, d, a, b, c, md5->buffer[7] + 0x432aff97, 10);
262 MD5STEP(F4, c, d, a, b, md5->buffer[14] + 0xab9423a7, 15);
263 MD5STEP(F4, b, c, d, a, md5->buffer[5] + 0xfc93a039, 21);
264 MD5STEP(F4, a, b, c, d, md5->buffer[12] + 0x655b59c3, 6);
265 MD5STEP(F4, d, a, b, c, md5->buffer[3] + 0x8f0ccc92, 10);
266 MD5STEP(F4, c, d, a, b, md5->buffer[10] + 0xffeff47d, 15);
267 MD5STEP(F4, b, c, d, a, md5->buffer[1] + 0x85845dd1, 21);
268 MD5STEP(F4, a, b, c, d, md5->buffer[8] + 0x6fa87e4f, 6);
269 MD5STEP(F4, d, a, b, c, md5->buffer[15] + 0xfe2ce6e0, 10);
270 MD5STEP(F4, c, d, a, b, md5->buffer[6] + 0xa3014314, 15);
271 MD5STEP(F4, b, c, d, a, md5->buffer[13] + 0x4e0811a1, 21);
272 MD5STEP(F4, a, b, c, d, md5->buffer[4] + 0xf7537e82, 6);
273 MD5STEP(F4, d, a, b, c, md5->buffer[11] + 0xbd3af235, 10);
274 MD5STEP(F4, c, d, a, b, md5->buffer[2] + 0x2ad7d2bb, 15);
275 MD5STEP(F4, b, c, d, a, md5->buffer[9] + 0xeb86d391, 21);
277 /* Add the working vars back into digest state[] */
284 #endif /* FREESCALE_MMCAU */
287 static INLINE void AddLength(Md5* md5, word32 len)
289 word32 tmp = md5->loLen;
290 if ( (md5->loLen += len) < tmp)
291 md5->hiLen++; /* carry low to high */
295 void Md5Update(Md5* md5, const byte* data, word32 len)
297 /* do block size increments */
298 byte* local = (byte*)md5->buffer;
301 word32 add = min(len, MD5_BLOCK_SIZE - md5->buffLen);
302 XMEMCPY(&local[md5->buffLen], data, add);
308 if (md5->buffLen == MD5_BLOCK_SIZE) {
309 #if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU)
310 ByteReverseWords(md5->buffer, md5->buffer, MD5_BLOCK_SIZE);
312 XTRANSFORM(md5, local);
313 AddLength(md5, MD5_BLOCK_SIZE);
320 void Md5Final(Md5* md5, byte* hash)
322 byte* local = (byte*)md5->buffer;
324 AddLength(md5, md5->buffLen); /* before adding pads */
326 local[md5->buffLen++] = 0x80; /* add 1 */
329 if (md5->buffLen > MD5_PAD_SIZE) {
330 XMEMSET(&local[md5->buffLen], 0, MD5_BLOCK_SIZE - md5->buffLen);
331 md5->buffLen += MD5_BLOCK_SIZE - md5->buffLen;
333 #if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU)
334 ByteReverseWords(md5->buffer, md5->buffer, MD5_BLOCK_SIZE);
336 XTRANSFORM(md5, local);
339 XMEMSET(&local[md5->buffLen], 0, MD5_PAD_SIZE - md5->buffLen);
341 /* put lengths in bits */
342 md5->hiLen = (md5->loLen >> (8*sizeof(md5->loLen) - 3)) +
344 md5->loLen = md5->loLen << 3;
347 #if defined(BIG_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU)
348 ByteReverseWords(md5->buffer, md5->buffer, MD5_BLOCK_SIZE);
350 /* ! length ordering dependent on digest endian type ! */
351 XMEMCPY(&local[MD5_PAD_SIZE], &md5->loLen, sizeof(word32));
352 XMEMCPY(&local[MD5_PAD_SIZE + sizeof(word32)], &md5->hiLen, sizeof(word32));
354 XTRANSFORM(md5, local);
355 #ifdef BIG_ENDIAN_ORDER
356 ByteReverseWords(md5->digest, md5->digest, MD5_DIGEST_SIZE);
358 XMEMCPY(hash, md5->digest, MD5_DIGEST_SIZE);
360 InitMd5(md5); /* reset state */
363 #endif /* STM32F2_HASH */
366 int Md5Hash(const byte* data, word32 len, byte* hash)
368 #ifdef CYASSL_SMALL_STACK
374 #ifdef CYASSL_SMALL_STACK
375 md5 = (Md5*)XMALLOC(sizeof(Md5), NULL, DYNAMIC_TYPE_TMP_BUFFER);
381 Md5Update(md5, data, len);
384 #ifdef CYASSL_SMALL_STACK
385 XFREE(md5, NULL, DYNAMIC_TYPE_TMP_BUFFER);