| 7698 |
dunkaist |
1 |
; libcrash -- cryptographic hash functions |
|
|
2 |
; |
|
|
3 |
; Copyright (C) 2012-2013,2016,2019 Ivan Baravy (dunkaist) |
|
|
4 |
; |
|
|
5 |
; This program is free software: you can redistribute it and/or modify |
|
|
6 |
; it under the terms of the GNU General Public License as published by |
|
|
7 |
; the Free Software Foundation, either version 3 of the License, or |
|
|
8 |
; (at your option) any later version. |
|
|
9 |
; |
|
|
10 |
; This program is distributed in the hope that it will be useful, |
|
|
11 |
; but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
|
12 |
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
|
13 |
; GNU General Public License for more details. |
|
|
14 |
; |
|
|
15 |
; You should have received a copy of the GNU General Public License |
|
|
16 |
; along with this program. If not, see . |
|
|
17 |
|
|
|
18 |
|
|
|
19 |
SHA224256_BLOCK_SIZE = 64 |
|
|
20 |
SHA224_BLOCK_SIZE = SHA224256_BLOCK_SIZE |
|
|
21 |
SHA256_BLOCK_SIZE = SHA224256_BLOCK_SIZE |
|
|
22 |
SHA224_HASH_SIZE = 28 |
|
|
23 |
SHA256_HASH_SIZE = 32 |
|
|
24 |
|
|
|
25 |
SHA224256_INIT_SIZE = 32 |
|
|
26 |
SHA224256_ALIGN = 4 |
|
|
27 |
SHA224256_ALIGN_MASK = SHA224256_ALIGN - 1 |
|
|
28 |
|
|
|
29 |
struct ctx_sha224256 |
|
|
30 |
hash rb SHA224256_INIT_SIZE |
|
|
31 |
block rb SHA224256_BLOCK_SIZE |
|
|
32 |
index rd 1 |
|
|
33 |
msglen_0 rd 1 |
|
|
34 |
msglen_1 rd 1 |
|
|
35 |
ends |
|
|
36 |
|
|
|
37 |
if defined sizeof.crash_ctx |
|
|
38 |
assert sizeof.crash_ctx >= sizeof.ctx_sha224256 |
|
|
39 |
end if |
|
|
40 |
|
|
|
41 |
|
|
|
42 |
macro sha224256._.chn x, y, z |
|
|
43 |
{ |
|
|
44 |
mov eax, [y] |
|
|
45 |
xor eax, [z] |
|
|
46 |
and eax, [x] |
|
|
47 |
xor eax, [z] |
|
|
48 |
} |
|
|
49 |
|
|
|
50 |
macro sha224256._.maj x, y, z |
|
|
51 |
{ |
|
|
52 |
mov eax, [x] |
|
|
53 |
xor eax, [y] |
|
|
54 |
and eax, [z] |
|
|
55 |
mov ecx, [x] |
|
|
56 |
and ecx, [y] |
|
|
57 |
xor eax, ecx |
|
|
58 |
} |
|
|
59 |
|
|
|
60 |
macro sha224256._.Sigma0 x |
|
|
61 |
{ |
|
|
62 |
mov eax, x |
|
|
63 |
mov ecx, eax |
|
|
64 |
ror ecx, 2 |
|
|
65 |
ror eax, 13 |
|
|
66 |
xor eax, ecx |
|
|
67 |
mov ecx, x |
|
|
68 |
ror ecx, 22 |
|
|
69 |
xor eax, ecx |
|
|
70 |
} |
|
|
71 |
|
|
|
72 |
macro sha224256._.Sigma1 x |
|
|
73 |
{ |
|
|
74 |
mov eax, x |
|
|
75 |
mov ecx, eax |
|
|
76 |
ror ecx, 6 |
|
|
77 |
ror eax, 11 |
|
|
78 |
xor eax, ecx |
|
|
79 |
mov ecx, x |
|
|
80 |
ror ecx, 25 |
|
|
81 |
xor eax, ecx |
|
|
82 |
} |
|
|
83 |
|
|
|
84 |
macro sha224256._.sigma0 x |
|
|
85 |
{ |
|
|
86 |
mov eax, x |
|
|
87 |
mov ecx, eax |
|
|
88 |
ror ecx, 7 |
|
|
89 |
ror eax, 18 |
|
|
90 |
xor eax, ecx |
|
|
91 |
mov ecx, x |
|
|
92 |
shr ecx, 3 |
|
|
93 |
xor eax, ecx |
|
|
94 |
} |
|
|
95 |
|
|
|
96 |
macro sha224256._.sigma1 x |
|
|
97 |
{ |
|
|
98 |
mov eax, x |
|
|
99 |
mov ecx, eax |
|
|
100 |
ror ecx, 17 |
|
|
101 |
ror eax, 19 |
|
|
102 |
xor eax, ecx |
|
|
103 |
mov ecx, x |
|
|
104 |
shr ecx, 10 |
|
|
105 |
xor eax, ecx |
|
|
106 |
} |
|
|
107 |
|
|
|
108 |
macro sha224256._.recalculate_w n |
|
|
109 |
{ |
|
|
110 |
mov edx, [w + ((n-2) and 15)*4] |
|
|
111 |
sha224256._.sigma1 edx |
|
|
112 |
add eax, [w + ((n-7) and 15)*4] |
|
|
113 |
push eax |
|
|
114 |
mov edx, [w + ((n-15) and 15)*4] |
|
|
115 |
sha224256._.sigma0 edx |
|
|
116 |
pop ecx |
|
|
117 |
add eax, ecx |
|
|
118 |
add [w + (n)*4], eax |
|
|
119 |
} |
|
|
120 |
|
|
|
121 |
macro sha224256._.round a, b, c, d, e, f, g, h, k |
|
|
122 |
{ |
|
|
123 |
mov ebx, [h] |
|
|
124 |
mov edx, [e] |
|
|
125 |
sha224256._.Sigma1 edx |
|
|
126 |
|
|
|
127 |
add ebx, eax |
|
|
128 |
sha224256._.chn e, f, g |
|
|
129 |
|
|
|
130 |
add ebx, eax |
|
|
131 |
add ebx, [k] |
|
|
132 |
add ebx, edi |
|
|
133 |
|
|
|
134 |
add [d], ebx |
|
|
135 |
|
|
|
136 |
mov edx, [a] |
|
|
137 |
sha224256._.Sigma0 edx |
|
|
138 |
add ebx, eax |
|
|
139 |
sha224256._.maj a, b, c |
|
|
140 |
add eax, ebx |
|
|
141 |
mov [h], eax |
|
|
142 |
} |
|
|
143 |
|
|
|
144 |
|
|
|
145 |
macro sha224256._.round_1_16 a, b, c, d, e, f, g, h, n |
|
|
146 |
{ |
|
|
147 |
|
|
|
148 |
mov eax, [esi + (n)*4] |
|
|
149 |
bswap eax |
|
|
150 |
|
|
|
151 |
mov dword[w + (n)*4], eax |
|
|
152 |
mov edi, eax |
|
|
153 |
sha224256._.round a, b, c, d, e, f, g, h, (sha256_table + (n)*4) |
|
|
154 |
} |
|
|
155 |
|
|
|
156 |
macro sha224256._.round_17_64 a, b, c, d, e, f, g, h, n, rep_num |
|
|
157 |
{ |
|
|
158 |
sha224256._.recalculate_w n |
|
|
159 |
mov edi, [w + (n)*4] |
|
|
160 |
sha224256._.round a, b, c, d, e, f, g, h, (sha256_table + (n+16*rep_num)*4) |
|
|
161 |
} |
|
|
162 |
|
|
|
163 |
|
|
|
164 |
proc sha224.init _ctx |
|
|
165 |
mov ebx, [_ctx] |
|
|
166 |
lea edi, [ebx + ctx_sha224256.hash] |
|
|
167 |
mov esi, sha224._.hash_init |
|
|
168 |
mov ecx, SHA224256_INIT_SIZE/4 |
|
|
169 |
rep movsd |
|
|
170 |
xor eax, eax |
|
|
171 |
mov [ebx + ctx_sha224256.index], eax |
|
|
172 |
mov [ebx + ctx_sha224256.msglen_0], eax |
|
|
173 |
mov [ebx + ctx_sha224256.msglen_1], eax |
|
|
174 |
ret |
|
|
175 |
endp |
|
|
176 |
|
|
|
177 |
|
|
|
178 |
proc sha256.init _ctx |
|
|
179 |
mov ebx, [_ctx] |
|
|
180 |
lea edi, [ebx + ctx_sha224256.hash] |
|
|
181 |
mov esi, sha256._.hash_init |
|
|
182 |
mov ecx, SHA224256_INIT_SIZE/4 |
|
|
183 |
rep movsd |
|
|
184 |
xor eax, eax |
|
|
185 |
mov [ebx + ctx_sha224256.index], eax |
|
|
186 |
mov [ebx + ctx_sha224256.msglen_0], eax |
|
|
187 |
mov [ebx + ctx_sha224256.msglen_1], eax |
|
|
188 |
ret |
|
|
189 |
endp |
|
|
190 |
|
|
|
191 |
|
|
|
192 |
proc sha224256._.block _hash |
|
|
193 |
locals |
|
|
194 |
w rd 64 |
|
|
195 |
A rd 1 |
|
|
196 |
B rd 1 |
|
|
197 |
C rd 1 |
|
|
198 |
D rd 1 |
|
|
199 |
E rd 1 |
|
|
200 |
F rd 1 |
|
|
201 |
G rd 1 |
|
|
202 |
H rd 1 |
|
|
203 |
endl |
|
|
204 |
mov edi, [_hash] |
|
|
205 |
mov eax, [edi + 0x00] |
|
|
206 |
mov [A], eax |
|
|
207 |
mov eax, [edi + 0x04] |
|
|
208 |
mov [B], eax |
|
|
209 |
mov eax, [edi + 0x08] |
|
|
210 |
mov [C], eax |
|
|
211 |
mov eax, [edi + 0x0c] |
|
|
212 |
mov [D], eax |
|
|
213 |
mov eax, [edi + 0x10] |
|
|
214 |
mov [E], eax |
|
|
215 |
mov eax, [edi + 0x14] |
|
|
216 |
mov [F], eax |
|
|
217 |
mov eax, [edi + 0x18] |
|
|
218 |
mov [G], eax |
|
|
219 |
mov eax, [edi + 0x1c] |
|
|
220 |
mov [H], eax |
|
|
221 |
|
|
|
222 |
sha224256._.round_1_16 A, B, C, D, E, F, G, H, 0 |
|
|
223 |
sha224256._.round_1_16 H, A, B, C, D, E, F, G, 1 |
|
|
224 |
sha224256._.round_1_16 G, H, A, B, C, D, E, F, 2 |
|
|
225 |
sha224256._.round_1_16 F, G, H, A, B, C, D, E, 3 |
|
|
226 |
sha224256._.round_1_16 E, F, G, H, A, B, C, D, 4 |
|
|
227 |
sha224256._.round_1_16 D, E, F, G, H, A, B, C, 5 |
|
|
228 |
sha224256._.round_1_16 C, D, E, F, G, H, A, B, 6 |
|
|
229 |
sha224256._.round_1_16 B, C, D, E, F, G, H, A, 7 |
|
|
230 |
sha224256._.round_1_16 A, B, C, D, E, F, G, H, 8 |
|
|
231 |
sha224256._.round_1_16 H, A, B, C, D, E, F, G, 9 |
|
|
232 |
sha224256._.round_1_16 G, H, A, B, C, D, E, F, 10 |
|
|
233 |
sha224256._.round_1_16 F, G, H, A, B, C, D, E, 11 |
|
|
234 |
sha224256._.round_1_16 E, F, G, H, A, B, C, D, 12 |
|
|
235 |
sha224256._.round_1_16 D, E, F, G, H, A, B, C, 13 |
|
|
236 |
sha224256._.round_1_16 C, D, E, F, G, H, A, B, 14 |
|
|
237 |
sha224256._.round_1_16 B, C, D, E, F, G, H, A, 15 |
|
|
238 |
|
|
|
239 |
repeat 3 |
|
|
240 |
sha224256._.round_17_64 A, B, C, D, E, F, G, H, 0, % |
|
|
241 |
sha224256._.round_17_64 H, A, B, C, D, E, F, G, 1, % |
|
|
242 |
sha224256._.round_17_64 G, H, A, B, C, D, E, F, 2, % |
|
|
243 |
sha224256._.round_17_64 F, G, H, A, B, C, D, E, 3, % |
|
|
244 |
sha224256._.round_17_64 E, F, G, H, A, B, C, D, 4, % |
|
|
245 |
sha224256._.round_17_64 D, E, F, G, H, A, B, C, 5, % |
|
|
246 |
sha224256._.round_17_64 C, D, E, F, G, H, A, B, 6, % |
|
|
247 |
sha224256._.round_17_64 B, C, D, E, F, G, H, A, 7, % |
|
|
248 |
sha224256._.round_17_64 A, B, C, D, E, F, G, H, 8, % |
|
|
249 |
sha224256._.round_17_64 H, A, B, C, D, E, F, G, 9, % |
|
|
250 |
sha224256._.round_17_64 G, H, A, B, C, D, E, F, 10, % |
|
|
251 |
sha224256._.round_17_64 F, G, H, A, B, C, D, E, 11, % |
|
|
252 |
sha224256._.round_17_64 E, F, G, H, A, B, C, D, 12, % |
|
|
253 |
sha224256._.round_17_64 D, E, F, G, H, A, B, C, 13, % |
|
|
254 |
sha224256._.round_17_64 C, D, E, F, G, H, A, B, 14, % |
|
|
255 |
sha224256._.round_17_64 B, C, D, E, F, G, H, A, 15, % |
|
|
256 |
end repeat |
|
|
257 |
|
|
|
258 |
mov edi, [_hash] |
|
|
259 |
mov eax, [A] |
|
|
260 |
add [edi + 0x00], eax |
|
|
261 |
mov eax, [B] |
|
|
262 |
add [edi + 0x04], eax |
|
|
263 |
mov eax, [C] |
|
|
264 |
add [edi + 0x08], eax |
|
|
265 |
mov eax, [D] |
|
|
266 |
add [edi + 0x0c], eax |
|
|
267 |
mov eax, [E] |
|
|
268 |
add [edi + 0x10], eax |
|
|
269 |
mov eax, [F] |
|
|
270 |
add [edi + 0x14], eax |
|
|
271 |
mov eax, [G] |
|
|
272 |
add [edi + 0x18], eax |
|
|
273 |
mov eax, [H] |
|
|
274 |
add [edi + 0x1c], eax |
|
|
275 |
|
|
|
276 |
ret |
|
|
277 |
endp |
|
|
278 |
|
|
|
279 |
|
|
|
280 |
sha224.update = sha224256.update |
|
|
281 |
sha256.update = sha224256.update |
|
|
282 |
proc sha224256.update _ctx, _msg, _size |
|
|
283 |
mov ebx, [_ctx] |
|
|
284 |
mov ecx, [_size] |
|
|
285 |
add [ebx + ctx_sha224256.msglen_0], ecx |
|
|
286 |
adc [ebx + ctx_sha224256.msglen_1], 0 |
|
|
287 |
|
|
|
288 |
.next_block: |
|
|
289 |
mov ebx, [_ctx] |
|
|
290 |
mov esi, [_msg] |
|
|
291 |
mov eax, [ebx + ctx_sha224256.index] |
|
|
292 |
and eax, SHA224256_BLOCK_SIZE-1 |
|
|
293 |
jnz .copy_to_buf |
|
|
294 |
test esi, SHA224256_ALIGN_MASK |
|
|
295 |
jnz .copy_to_buf |
|
|
296 |
.no_copy: |
|
|
297 |
; data is aligned, hash it in place without copying |
|
|
298 |
mov ebx, [_ctx] |
|
|
299 |
cmp [_size], SHA224256_BLOCK_SIZE |
|
|
300 |
jb .copy_quit |
|
|
301 |
lea eax, [ebx + ctx_sha224256.hash] |
|
|
302 |
stdcall sha224256._.block, eax |
|
|
303 |
sub [_size], SHA224256_BLOCK_SIZE |
|
|
304 |
add esi, SHA224256_BLOCK_SIZE ; FIXME |
|
|
305 |
jmp .no_copy |
|
|
306 |
|
|
|
307 |
.copy_to_buf: |
|
|
308 |
lea edi, [ebx + ctx_sha224256.block] |
|
|
309 |
add edi, eax |
|
|
310 |
mov ecx, SHA224256_BLOCK_SIZE |
|
|
311 |
sub ecx, eax |
|
|
312 |
cmp [_size], ecx |
|
|
313 |
jb .copy_quit |
|
|
314 |
sub [_size], ecx |
|
|
315 |
add [_msg], ecx |
|
|
316 |
add [ebx + ctx_sha224256.index], ecx |
|
|
317 |
rep movsb |
|
|
318 |
lea eax, [ebx + ctx_sha224256.hash] |
|
|
319 |
lea esi, [ebx + ctx_sha224256.block] |
|
|
320 |
stdcall sha224256._.block, eax |
|
|
321 |
jmp .next_block |
|
|
322 |
|
|
|
323 |
.copy_quit: |
|
|
324 |
mov ebx, [_ctx] |
|
|
325 |
lea edi, [ebx + ctx_sha224256.block] |
|
|
326 |
mov eax, [ebx + ctx_sha224256.index] |
|
|
327 |
and eax, SHA224256_BLOCK_SIZE-1 |
|
|
328 |
add edi, eax |
|
|
329 |
mov ecx, [_size] |
|
|
330 |
add [ebx + ctx_sha224256.index], ecx |
|
|
331 |
rep movsb |
|
|
332 |
.quit: |
|
|
333 |
|
|
|
334 |
ret |
|
|
335 |
endp |
|
|
336 |
|
|
|
337 |
|
|
|
338 |
sha224.final = sha224256.final |
|
|
339 |
sha256.final = sha224256.final |
|
|
340 |
proc sha224256.final _ctx |
|
|
341 |
mov ebx, [_ctx] |
|
|
342 |
lea edi, [ebx + ctx_sha224256.block] |
|
|
343 |
mov ecx, [ebx + ctx_sha224256.msglen_0] |
|
|
344 |
and ecx, SHA224256_BLOCK_SIZE-1 |
|
|
345 |
add edi, ecx |
|
|
346 |
mov byte[edi], 0x80 |
|
|
347 |
inc edi |
|
|
348 |
neg ecx |
|
|
349 |
add ecx, SHA224256_BLOCK_SIZE |
|
|
350 |
cmp ecx, 8 |
|
|
351 |
ja .last |
|
|
352 |
|
|
|
353 |
dec ecx |
|
|
354 |
xor eax, eax |
|
|
355 |
rep stosb |
|
|
356 |
lea esi, [ebx + ctx_sha224256.block] |
|
|
357 |
lea eax, [ebx + ctx_sha224256.hash] |
|
|
358 |
stdcall sha224256._.block, eax |
|
|
359 |
mov ebx, [_ctx] |
|
|
360 |
lea edi, [ebx + ctx_sha224256.block] |
|
|
361 |
mov ecx, SHA224256_BLOCK_SIZE+1 |
|
|
362 |
.last: |
|
|
363 |
dec ecx |
|
|
364 |
sub ecx, 8 |
|
|
365 |
xor eax, eax |
|
|
366 |
rep stosb |
|
|
367 |
mov eax, [ebx + ctx_sha224256.msglen_0] |
|
|
368 |
mov edx, [ebx + ctx_sha224256.msglen_1] |
|
|
369 |
shld edx, eax, 3 |
|
|
370 |
shl eax, 3 |
|
|
371 |
bswap eax |
|
|
372 |
bswap edx |
|
|
373 |
mov dword[edi], edx |
|
|
374 |
mov dword[edi+4], eax |
|
|
375 |
lea esi, [ebx + ctx_sha224256.block] |
|
|
376 |
lea eax, [ebx + ctx_sha224256.hash] |
|
|
377 |
stdcall sha224256._.block, eax |
|
|
378 |
|
|
|
379 |
mov ebx, [_ctx] |
|
|
380 |
lea eax, [ebx + ctx_sha224256.hash] |
|
|
381 |
stdcall sha224256._.postprocess, ebx, eax |
|
|
382 |
|
|
|
383 |
ret |
|
|
384 |
endp |
|
|
385 |
|
|
|
386 |
|
|
|
387 |
proc sha224256._.postprocess _ctx, _hash |
|
|
388 |
mov ecx, 8 |
|
|
389 |
mov esi, [_hash] |
|
|
390 |
mov edi, esi |
|
|
391 |
@@: |
|
|
392 |
lodsd |
|
|
393 |
bswap eax |
|
|
394 |
stosd |
|
|
395 |
dec ecx |
|
|
396 |
jnz @b |
|
|
397 |
ret |
|
|
398 |
endp |
|
|
399 |
|
|
|
400 |
|
|
|
401 |
proc sha224.oneshot _ctx, _data, _len |
|
|
402 |
stdcall sha224.init, [_ctx] |
|
|
403 |
stdcall sha224.update, [_ctx], [_data], [_len] |
|
|
404 |
stdcall sha224.final, [_ctx] |
|
|
405 |
ret |
|
|
406 |
endp |
|
|
407 |
|
|
|
408 |
|
|
|
409 |
proc sha256.oneshot _ctx, _data, _len |
|
|
410 |
stdcall sha256.init, [_ctx] |
|
|
411 |
stdcall sha256.update, [_ctx], [_data], [_len] |
|
|
412 |
stdcall sha256.final, [_ctx] |
|
|
413 |
ret |
|
|
414 |
endp |
|
|
415 |
|
|
|
416 |
|
|
|
417 |
iglobal |
|
|
418 |
align SHA224256_ALIGN |
|
|
419 |
sha224._.hash_init dd 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939,\ |
|
|
420 |
0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 |
|
|
421 |
|
|
|
422 |
sha256._.hash_init dd 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,\ |
|
|
423 |
0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 |
|
|
424 |
|
|
|
425 |
sha256_table dd 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,\ |
|
|
426 |
0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,\ |
|
|
427 |
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,\ |
|
|
428 |
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,\ |
|
|
429 |
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,\ |
|
|
430 |
0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,\ |
|
|
431 |
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,\ |
|
|
432 |
0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,\ |
|
|
433 |
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,\ |
|
|
434 |
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,\ |
|
|
435 |
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,\ |
|
|
436 |
0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,\ |
|
|
437 |
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,\ |
|
|
438 |
0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,\ |
|
|
439 |
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,\ |
|
|
440 |
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 |
|
|
441 |
endg |