1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
|
/*
Copyright (C) 2000-2007 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
MA 02110-1301 USA.
*/
/* based on Wei Dai's md5.cpp from CryptoPP */
#include "runtime.hpp"
#include "md5.hpp"
#ifdef USE_SYS_STL
#include <algorithm>
#else
#include "algorithm.hpp"
#endif
namespace STL = STL_NAMESPACE;
namespace TaoCrypt {
void MD5::Init()
{
digest_[0] = 0x67452301L;
digest_[1] = 0xefcdab89L;
digest_[2] = 0x98badcfeL;
digest_[3] = 0x10325476L;
buffLen_ = 0;
loLen_ = 0;
hiLen_ = 0;
}
MD5::MD5(const MD5& that) : HASHwithTransform(DIGEST_SIZE / sizeof(word32),
BLOCK_SIZE)
{
buffLen_ = that.buffLen_;
loLen_ = that.loLen_;
hiLen_ = that.hiLen_;
memcpy(digest_, that.digest_, DIGEST_SIZE);
memcpy(buffer_, that.buffer_, BLOCK_SIZE);
}
MD5& MD5::operator= (const MD5& that)
{
MD5 tmp(that);
Swap(tmp);
return *this;
}
void MD5::Swap(MD5& other)
{
STL::swap(loLen_, other.loLen_);
STL::swap(hiLen_, other.hiLen_);
STL::swap(buffLen_, other.buffLen_);
memcpy(digest_, other.digest_, DIGEST_SIZE);
memcpy(buffer_, other.buffer_, BLOCK_SIZE);
}
#ifdef DO_MD5_ASM
// Update digest with data of size len
void MD5::Update(const byte* data, word32 len)
{
if (!isMMX) {
HASHwithTransform::Update(data, len);
return;
}
byte* local = reinterpret_cast<byte*>(buffer_);
// remove buffered data if possible
if (buffLen_) {
word32 add = min(len, BLOCK_SIZE - buffLen_);
memcpy(&local[buffLen_], data, add);
buffLen_ += add;
data += add;
len -= add;
if (buffLen_ == BLOCK_SIZE) {
Transform();
AddLength(BLOCK_SIZE);
buffLen_ = 0;
}
}
// at once for asm
if (buffLen_ == 0) {
word32 times = len / BLOCK_SIZE;
if (times) {
AsmTransform(data, times);
const word32 add = BLOCK_SIZE * times;
AddLength(add);
len -= add;
data += add;
}
}
// cache any data left
if (len) {
memcpy(&local[buffLen_], data, len);
buffLen_ += len;
}
}
/*
// w = rotlFixed(w + f(x, y, z) + index[edi] + data, s) + x
#define ASMMD5STEP(f, w, x, y, z, index, data, s) \
f(x, y, z) \
AS2( mov ebp, [edi + index * 4] ) \
AS2( lea w, [esi + w + data] ) \
AS2( add w, ebp ) \
AS2( rol w, s ) \
AS2( add w, x )
// F1(x, y, z) (z ^ (x & (y ^ z)))
// place in esi
#define ASMF1(x, y, z) \
AS2( mov esi, y ) \
AS2( xor esi, z ) \
AS2( and esi, x ) \
AS2( xor esi, z )
#define ASMF2(x, y, z) ASMF1(z, x, y)
// F3(x ^ y ^ z)
// place in esi
#define ASMF3(x, y, z) \
AS2( mov esi, x ) \
AS2( xor esi, y ) \
AS2( xor esi, z )
// F4(x, y, z) (y ^ (x | ~z))
// place in esi
#define ASMF4(x, y, z) \
AS2( mov esi, z ) \
AS1( not esi ) \
AS2( or esi, x ) \
AS2( xor esi, y )
*/
// combine above ASMMD5STEP(f w/ each f ASMF1 - F4
// esi already set up, after using set for next round
// ebp already set up, set up using next round index
#define MD5STEP1(w, x, y, z, index, data, s) \
AS2( xor esi, z ) \
AS2( and esi, x ) \
AS2( lea w, [ebp + w + data] ) \
AS2( xor esi, z ) \
AS2( add w, esi ) \
AS2( mov esi, x ) \
AS2( rol w, s ) \
AS2( mov ebp, [edi + index * 4] ) \
AS2( add w, x )
#define MD5STEP2(w, x, y, z, index, data, s) \
AS2( xor esi, x ) \
AS2( and esi, z ) \
AS2( lea w, [ebp + w + data] ) \
AS2( xor esi, y ) \
AS2( add w, esi ) \
AS2( mov esi, x ) \
AS2( rol w, s ) \
AS2( mov ebp, [edi + index * 4] ) \
AS2( add w, x )
#define MD5STEP3(w, x, y, z, index, data, s) \
AS2( xor esi, z ) \
AS2( lea w, [ebp + w + data] ) \
AS2( xor esi, x ) \
AS2( add w, esi ) \
AS2( mov esi, x ) \
AS2( rol w, s ) \
AS2( mov ebp, [edi + index * 4] ) \
AS2( add w, x )
#define MD5STEP4(w, x, y, z, index, data, s) \
AS2( or esi, x ) \
AS2( lea w, [ebp + w + data] ) \
AS2( xor esi, y ) \
AS2( add w, esi ) \
AS2( mov esi, y ) \
AS2( rol w, s ) \
AS1( not esi ) \
AS2( mov ebp, [edi + index * 4] ) \
AS2( add w, x )
#ifdef _MSC_VER
__declspec(naked)
#endif
void MD5::AsmTransform(const byte* data, word32 times)
{
#ifdef __GNUC__
#define AS1(x) asm(#x);
#define AS2(x, y) asm(#x ", " #y);
#define PROLOG() \
asm(".intel_syntax noprefix"); \
AS2( movd mm3, edi ) \
AS2( movd mm4, ebx ) \
AS2( movd mm5, esi ) \
AS2( movd mm6, ebp ) \
AS2( mov ecx, DWORD PTR [ebp + 8] ) \
AS2( mov edi, DWORD PTR [ebp + 12] ) \
AS2( mov eax, DWORD PTR [ebp + 16] )
#define EPILOG() \
AS2( movd ebp, mm6 ) \
AS2( movd esi, mm5 ) \
AS2( movd ebx, mm4 ) \
AS2( mov esp, ebp ) \
AS2( movd edi, mm3 ) \
AS1( emms ) \
asm(".att_syntax");
#else
#define AS1(x) __asm x
#define AS2(x, y) __asm x, y
#define PROLOG() \
AS1( push ebp ) \
AS2( mov ebp, esp ) \
AS2( movd mm3, edi ) \
AS2( movd mm4, ebx ) \
AS2( movd mm5, esi ) \
AS2( movd mm6, ebp ) \
AS2( mov edi, DWORD PTR [ebp + 8] ) \
AS2( mov eax, DWORD PTR [ebp + 12] )
#define EPILOG() \
AS2( movd ebp, mm6 ) \
AS2( movd esi, mm5 ) \
AS2( movd ebx, mm4 ) \
AS2( movd edi, mm3 ) \
AS2( mov esp, ebp ) \
AS1( pop ebp ) \
AS1( emms ) \
AS1( ret 8 )
#endif
PROLOG()
AS2( mov esi, ecx )
#ifdef OLD_GCC_OFFSET
AS2( add esi, 20 ) // digest_[0]
#else
AS2( add esi, 16 ) // digest_[0]
#endif
AS2( movd mm2, eax ) // store times_
AS2( movd mm1, esi ) // store digest_
AS2( mov eax, [esi] ) // a
AS2( mov ebx, [esi + 4] ) // b
AS2( mov ecx, [esi + 8] ) // c
AS2( mov edx, [esi + 12] ) // d
AS1(loopStart:)
// set up
AS2( mov esi, ecx )
AS2( mov ebp, [edi] )
MD5STEP1( eax, ebx, ecx, edx, 1, 0xd76aa478, 7)
MD5STEP1( edx, eax, ebx, ecx, 2, 0xe8c7b756, 12)
MD5STEP1( ecx, edx, eax, ebx, 3, 0x242070db, 17)
MD5STEP1( ebx, ecx, edx, eax, 4, 0xc1bdceee, 22)
MD5STEP1( eax, ebx, ecx, edx, 5, 0xf57c0faf, 7)
MD5STEP1( edx, eax, ebx, ecx, 6, 0x4787c62a, 12)
MD5STEP1( ecx, edx, eax, ebx, 7, 0xa8304613, 17)
MD5STEP1( ebx, ecx, edx, eax, 8, 0xfd469501, 22)
MD5STEP1( eax, ebx, ecx, edx, 9, 0x698098d8, 7)
MD5STEP1( edx, eax, ebx, ecx, 10, 0x8b44f7af, 12)
MD5STEP1( ecx, edx, eax, ebx, 11, 0xffff5bb1, 17)
MD5STEP1( ebx, ecx, edx, eax, 12, 0x895cd7be, 22)
MD5STEP1( eax, ebx, ecx, edx, 13, 0x6b901122, 7)
MD5STEP1( edx, eax, ebx, ecx, 14, 0xfd987193, 12)
MD5STEP1( ecx, edx, eax, ebx, 15, 0xa679438e, 17)
MD5STEP1( ebx, ecx, edx, eax, 1, 0x49b40821, 22)
MD5STEP2( eax, ebx, ecx, edx, 6, 0xf61e2562, 5)
MD5STEP2( edx, eax, ebx, ecx, 11, 0xc040b340, 9)
MD5STEP2( ecx, edx, eax, ebx, 0, 0x265e5a51, 14)
MD5STEP2( ebx, ecx, edx, eax, 5, 0xe9b6c7aa, 20)
MD5STEP2( eax, ebx, ecx, edx, 10, 0xd62f105d, 5)
MD5STEP2( edx, eax, ebx, ecx, 15, 0x02441453, 9)
MD5STEP2( ecx, edx, eax, ebx, 4, 0xd8a1e681, 14)
MD5STEP2( ebx, ecx, edx, eax, 9, 0xe7d3fbc8, 20)
MD5STEP2( eax, ebx, ecx, edx, 14, 0x21e1cde6, 5)
MD5STEP2( edx, eax, ebx, ecx, 3, 0xc33707d6, 9)
MD5STEP2( ecx, edx, eax, ebx, 8, 0xf4d50d87, 14)
MD5STEP2( ebx, ecx, edx, eax, 13, 0x455a14ed, 20)
MD5STEP2( eax, ebx, ecx, edx, 2, 0xa9e3e905, 5)
MD5STEP2( edx, eax, ebx, ecx, 7, 0xfcefa3f8, 9)
MD5STEP2( ecx, edx, eax, ebx, 12, 0x676f02d9, 14)
MD5STEP2( ebx, ecx, edx, eax, 5, 0x8d2a4c8a, 20)
MD5STEP3( eax, ebx, ecx, edx, 8, 0xfffa3942, 4)
MD5STEP3( edx, eax, ebx, ecx, 11, 0x8771f681, 11)
MD5STEP3( ecx, edx, eax, ebx, 14, 0x6d9d6122, 16)
MD5STEP3( ebx, ecx, edx, eax, 1, 0xfde5380c, 23)
MD5STEP3( eax, ebx, ecx, edx, 4, 0xa4beea44, 4)
MD5STEP3( edx, eax, ebx, ecx, 7, 0x4bdecfa9, 11)
MD5STEP3( ecx, edx, eax, ebx, 10, 0xf6bb4b60, 16)
MD5STEP3( ebx, ecx, edx, eax, 13, 0xbebfbc70, 23)
MD5STEP3( eax, ebx, ecx, edx, 0, 0x289b7ec6, 4)
MD5STEP3( edx, eax, ebx, ecx, 3, 0xeaa127fa, 11)
MD5STEP3( ecx, edx, eax, ebx, 6, 0xd4ef3085, 16)
MD5STEP3( ebx, ecx, edx, eax, 9, 0x04881d05, 23)
MD5STEP3( eax, ebx, ecx, edx, 12, 0xd9d4d039, 4)
MD5STEP3( edx, eax, ebx, ecx, 15, 0xe6db99e5, 11)
MD5STEP3( ecx, edx, eax, ebx, 2, 0x1fa27cf8, 16)
MD5STEP3( ebx, ecx, edx, eax, 0, 0xc4ac5665, 23)
// setup
AS2( mov esi, edx )
AS1( not esi )
MD5STEP4( eax, ebx, ecx, edx, 7, 0xf4292244, 6)
MD5STEP4( edx, eax, ebx, ecx, 14, 0x432aff97, 10)
MD5STEP4( ecx, edx, eax, ebx, 5, 0xab9423a7, 15)
MD5STEP4( ebx, ecx, edx, eax, 12, 0xfc93a039, 21)
MD5STEP4( eax, ebx, ecx, edx, 3, 0x655b59c3, 6)
MD5STEP4( edx, eax, ebx, ecx, 10, 0x8f0ccc92, 10)
MD5STEP4( ecx, edx, eax, ebx, 1, 0xffeff47d, 15)
MD5STEP4( ebx, ecx, edx, eax, 8, 0x85845dd1, 21)
MD5STEP4( eax, ebx, ecx, edx, 15, 0x6fa87e4f, 6)
MD5STEP4( edx, eax, ebx, ecx, 6, 0xfe2ce6e0, 10)
MD5STEP4( ecx, edx, eax, ebx, 13, 0xa3014314, 15)
MD5STEP4( ebx, ecx, edx, eax, 4, 0x4e0811a1, 21)
MD5STEP4( eax, ebx, ecx, edx, 11, 0xf7537e82, 6)
MD5STEP4( edx, eax, ebx, ecx, 2, 0xbd3af235, 10)
MD5STEP4( ecx, edx, eax, ebx, 9, 0x2ad7d2bb, 15)
MD5STEP4( ebx, ecx, edx, eax, 9, 0xeb86d391, 21)
AS2( movd esi, mm1 ) // digest_
AS2( add [esi], eax ) // write out
AS2( add [esi + 4], ebx )
AS2( add [esi + 8], ecx )
AS2( add [esi + 12], edx )
AS2( add edi, 64 )
AS2( mov eax, [esi] )
AS2( mov ebx, [esi + 4] )
AS2( mov ecx, [esi + 8] )
AS2( mov edx, [esi + 12] )
AS2( movd ebp, mm2 ) // times
AS1( dec ebp )
AS2( movd mm2, ebp )
AS1( jnz loopStart )
EPILOG()
}
#endif // DO_MD5_ASM
void MD5::Transform()
{
#define F1(x, y, z) (z ^ (x & (y ^ z)))
#define F2(x, y, z) F1(z, x, y)
#define F3(x, y, z) (x ^ y ^ z)
#define F4(x, y, z) (y ^ (x | ~z))
#define MD5STEP(f, w, x, y, z, data, s) \
w = rotlFixed(w + f(x, y, z) + data, s) + x
// Copy context->state[] to working vars
word32 a = digest_[0];
word32 b = digest_[1];
word32 c = digest_[2];
word32 d = digest_[3];
MD5STEP(F1, a, b, c, d, buffer_[0] + 0xd76aa478, 7);
MD5STEP(F1, d, a, b, c, buffer_[1] + 0xe8c7b756, 12);
MD5STEP(F1, c, d, a, b, buffer_[2] + 0x242070db, 17);
MD5STEP(F1, b, c, d, a, buffer_[3] + 0xc1bdceee, 22);
MD5STEP(F1, a, b, c, d, buffer_[4] + 0xf57c0faf, 7);
MD5STEP(F1, d, a, b, c, buffer_[5] + 0x4787c62a, 12);
MD5STEP(F1, c, d, a, b, buffer_[6] + 0xa8304613, 17);
MD5STEP(F1, b, c, d, a, buffer_[7] + 0xfd469501, 22);
MD5STEP(F1, a, b, c, d, buffer_[8] + 0x698098d8, 7);
MD5STEP(F1, d, a, b, c, buffer_[9] + 0x8b44f7af, 12);
MD5STEP(F1, c, d, a, b, buffer_[10] + 0xffff5bb1, 17);
MD5STEP(F1, b, c, d, a, buffer_[11] + 0x895cd7be, 22);
MD5STEP(F1, a, b, c, d, buffer_[12] + 0x6b901122, 7);
MD5STEP(F1, d, a, b, c, buffer_[13] + 0xfd987193, 12);
MD5STEP(F1, c, d, a, b, buffer_[14] + 0xa679438e, 17);
MD5STEP(F1, b, c, d, a, buffer_[15] + 0x49b40821, 22);
MD5STEP(F2, a, b, c, d, buffer_[1] + 0xf61e2562, 5);
MD5STEP(F2, d, a, b, c, buffer_[6] + 0xc040b340, 9);
MD5STEP(F2, c, d, a, b, buffer_[11] + 0x265e5a51, 14);
MD5STEP(F2, b, c, d, a, buffer_[0] + 0xe9b6c7aa, 20);
MD5STEP(F2, a, b, c, d, buffer_[5] + 0xd62f105d, 5);
MD5STEP(F2, d, a, b, c, buffer_[10] + 0x02441453, 9);
MD5STEP(F2, c, d, a, b, buffer_[15] + 0xd8a1e681, 14);
MD5STEP(F2, b, c, d, a, buffer_[4] + 0xe7d3fbc8, 20);
MD5STEP(F2, a, b, c, d, buffer_[9] + 0x21e1cde6, 5);
MD5STEP(F2, d, a, b, c, buffer_[14] + 0xc33707d6, 9);
MD5STEP(F2, c, d, a, b, buffer_[3] + 0xf4d50d87, 14);
MD5STEP(F2, b, c, d, a, buffer_[8] + 0x455a14ed, 20);
MD5STEP(F2, a, b, c, d, buffer_[13] + 0xa9e3e905, 5);
MD5STEP(F2, d, a, b, c, buffer_[2] + 0xfcefa3f8, 9);
MD5STEP(F2, c, d, a, b, buffer_[7] + 0x676f02d9, 14);
MD5STEP(F2, b, c, d, a, buffer_[12] + 0x8d2a4c8a, 20);
MD5STEP(F3, a, b, c, d, buffer_[5] + 0xfffa3942, 4);
MD5STEP(F3, d, a, b, c, buffer_[8] + 0x8771f681, 11);
MD5STEP(F3, c, d, a, b, buffer_[11] + 0x6d9d6122, 16);
MD5STEP(F3, b, c, d, a, buffer_[14] + 0xfde5380c, 23);
MD5STEP(F3, a, b, c, d, buffer_[1] + 0xa4beea44, 4);
MD5STEP(F3, d, a, b, c, buffer_[4] + 0x4bdecfa9, 11);
MD5STEP(F3, c, d, a, b, buffer_[7] + 0xf6bb4b60, 16);
MD5STEP(F3, b, c, d, a, buffer_[10] + 0xbebfbc70, 23);
MD5STEP(F3, a, b, c, d, buffer_[13] + 0x289b7ec6, 4);
MD5STEP(F3, d, a, b, c, buffer_[0] + 0xeaa127fa, 11);
MD5STEP(F3, c, d, a, b, buffer_[3] + 0xd4ef3085, 16);
MD5STEP(F3, b, c, d, a, buffer_[6] + 0x04881d05, 23);
MD5STEP(F3, a, b, c, d, buffer_[9] + 0xd9d4d039, 4);
MD5STEP(F3, d, a, b, c, buffer_[12] + 0xe6db99e5, 11);
MD5STEP(F3, c, d, a, b, buffer_[15] + 0x1fa27cf8, 16);
MD5STEP(F3, b, c, d, a, buffer_[2] + 0xc4ac5665, 23);
MD5STEP(F4, a, b, c, d, buffer_[0] + 0xf4292244, 6);
MD5STEP(F4, d, a, b, c, buffer_[7] + 0x432aff97, 10);
MD5STEP(F4, c, d, a, b, buffer_[14] + 0xab9423a7, 15);
MD5STEP(F4, b, c, d, a, buffer_[5] + 0xfc93a039, 21);
MD5STEP(F4, a, b, c, d, buffer_[12] + 0x655b59c3, 6);
MD5STEP(F4, d, a, b, c, buffer_[3] + 0x8f0ccc92, 10);
MD5STEP(F4, c, d, a, b, buffer_[10] + 0xffeff47d, 15);
MD5STEP(F4, b, c, d, a, buffer_[1] + 0x85845dd1, 21);
MD5STEP(F4, a, b, c, d, buffer_[8] + 0x6fa87e4f, 6);
MD5STEP(F4, d, a, b, c, buffer_[15] + 0xfe2ce6e0, 10);
MD5STEP(F4, c, d, a, b, buffer_[6] + 0xa3014314, 15);
MD5STEP(F4, b, c, d, a, buffer_[13] + 0x4e0811a1, 21);
MD5STEP(F4, a, b, c, d, buffer_[4] + 0xf7537e82, 6);
MD5STEP(F4, d, a, b, c, buffer_[11] + 0xbd3af235, 10);
MD5STEP(F4, c, d, a, b, buffer_[2] + 0x2ad7d2bb, 15);
MD5STEP(F4, b, c, d, a, buffer_[9] + 0xeb86d391, 21);
// Add the working vars back into digest state[]
digest_[0] += a;
digest_[1] += b;
digest_[2] += c;
digest_[3] += d;
// Wipe variables
a = b = c = d = 0;
}
} // namespace
|
