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ripemd.c
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1 /*
2  * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
3  * Copyright (C) 2013 James Almer
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg 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 GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include <string.h>
23 
24 #include "attributes.h"
25 #include "avutil.h"
26 #include "bswap.h"
27 #include "intreadwrite.h"
28 #include "ripemd.h"
29 #include "mem.h"
30 
31 /** hash context */
32 typedef struct AVRIPEMD {
33  uint8_t digest_len; ///< digest length in 32-bit words
34  uint64_t count; ///< number of bytes in buffer
35  uint8_t buffer[64]; ///< 512-bit buffer of input values used in hash updating
36  uint32_t state[10]; ///< current hash value
37  /** function used to update hash for 512-bit input block */
38  void (*transform)(uint32_t *state, const uint8_t buffer[64]);
39 } AVRIPEMD;
40 
41 const int av_ripemd_size = sizeof(AVRIPEMD);
42 
44 {
45  return av_mallocz(sizeof(struct AVRIPEMD));
46 }
47 
48 static const uint32_t KA[4] = {
49  0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xa953fd4e
50 };
51 
52 static const uint32_t KB[4] = {
53  0x50a28be6, 0x5c4dd124, 0x6d703ef3, 0x7a6d76e9
54 };
55 
56 static const int ROTA[80] = {
57  11, 14, 15, 12, 5, 8, 7 , 9, 11, 13, 14, 15, 6, 7, 9, 8,
58  7 , 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
59  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
60  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
61  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
62 };
63 
64 static const int ROTB[80] = {
65  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
66  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
67  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
68  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
69  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
70 };
71 
72 static const int WA[80] = {
73  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
74  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
75  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
76  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
77  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
78 };
79 
80 static const int WB[80] = {
81  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
82  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
83  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
84  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
85  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
86 };
87 
88 #define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
89 
90 #define ROUND128_0_TO_15(a,b,c,d,e,f,g,h) \
91  a = rol(a + (( b ^ c ^ d) + block[WA[n]]), ROTA[n]); \
92  e = rol(e + ((((f ^ g) & h) ^ g) + block[WB[n]] + KB[0]), ROTB[n]); \
93  n++
94 
95 #define ROUND128_16_TO_31(a,b,c,d,e,f,g,h) \
96  a = rol(a + ((((c ^ d) & b) ^ d) + block[WA[n]] + KA[0]), ROTA[n]); \
97  e = rol(e + (((~g | f) ^ h) + block[WB[n]] + KB[1]), ROTB[n]); \
98  n++
99 
100 #define ROUND128_32_TO_47(a,b,c,d,e,f,g,h) \
101  a = rol(a + (((~c | b) ^ d) + block[WA[n]] + KA[1]), ROTA[n]); \
102  e = rol(e + ((((g ^ h) & f) ^ h) + block[WB[n]] + KB[2]), ROTB[n]); \
103  n++
104 
105 #define ROUND128_48_TO_63(a,b,c,d,e,f,g,h) \
106  a = rol(a + ((((b ^ c) & d) ^ c) + block[WA[n]] + KA[2]), ROTA[n]); \
107  e = rol(e + (( f ^ g ^ h) + block[WB[n]]), ROTB[n]); \
108  n++
109 
110 #define R128_0 \
111  ROUND128_0_TO_15(a,b,c,d,e,f,g,h); \
112  ROUND128_0_TO_15(d,a,b,c,h,e,f,g); \
113  ROUND128_0_TO_15(c,d,a,b,g,h,e,f); \
114  ROUND128_0_TO_15(b,c,d,a,f,g,h,e)
115 
116 #define R128_16 \
117  ROUND128_16_TO_31(a,b,c,d,e,f,g,h); \
118  ROUND128_16_TO_31(d,a,b,c,h,e,f,g); \
119  ROUND128_16_TO_31(c,d,a,b,g,h,e,f); \
120  ROUND128_16_TO_31(b,c,d,a,f,g,h,e)
121 
122 #define R128_32 \
123  ROUND128_32_TO_47(a,b,c,d,e,f,g,h); \
124  ROUND128_32_TO_47(d,a,b,c,h,e,f,g); \
125  ROUND128_32_TO_47(c,d,a,b,g,h,e,f); \
126  ROUND128_32_TO_47(b,c,d,a,f,g,h,e)
127 
128 #define R128_48 \
129  ROUND128_48_TO_63(a,b,c,d,e,f,g,h); \
130  ROUND128_48_TO_63(d,a,b,c,h,e,f,g); \
131  ROUND128_48_TO_63(c,d,a,b,g,h,e,f); \
132  ROUND128_48_TO_63(b,c,d,a,f,g,h,e)
133 
134 static void ripemd128_transform(uint32_t *state, const uint8_t buffer[64])
135 {
136  uint32_t a, b, c, d, e, f, g, h, av_unused t;
137  uint32_t block[16];
138  int n;
139 
140  a = e = state[0];
141  b = f = state[1];
142  c = g = state[2];
143  d = h = state[3];
144 
145  for (n = 0; n < 16; n++)
146  block[n] = AV_RL32(buffer + 4 * n);
147  n = 0;
148 
149 #if CONFIG_SMALL
150  for (; n < 16;) {
151  ROUND128_0_TO_15(a,b,c,d,e,f,g,h);
152  t = d; d = c; c = b; b = a; a = t;
153  t = h; h = g; g = f; f = e; e = t;
154  }
155 
156  for (; n < 32;) {
157  ROUND128_16_TO_31(a,b,c,d,e,f,g,h);
158  t = d; d = c; c = b; b = a; a = t;
159  t = h; h = g; g = f; f = e; e = t;
160  }
161 
162  for (; n < 48;) {
163  ROUND128_32_TO_47(a,b,c,d,e,f,g,h);
164  t = d; d = c; c = b; b = a; a = t;
165  t = h; h = g; g = f; f = e; e = t;
166  }
167 
168  for (; n < 64;) {
169  ROUND128_48_TO_63(a,b,c,d,e,f,g,h);
170  t = d; d = c; c = b; b = a; a = t;
171  t = h; h = g; g = f; f = e; e = t;
172  }
173 #else
174 
176 
178 
180 
182 #endif
183 
184  h += c + state[1];
185  state[1] = state[2] + d + e;
186  state[2] = state[3] + a + f;
187  state[3] = state[0] + b + g;
188  state[0] = h;
189 }
190 
191 static void ripemd256_transform(uint32_t *state, const uint8_t buffer[64])
192 {
193  uint32_t a, b, c, d, e, f, g, h, av_unused t;
194  uint32_t block[16];
195  int n;
196 
197  a = state[0]; b = state[1]; c = state[2]; d = state[3];
198  e = state[4]; f = state[5]; g = state[6]; h = state[7];
199 
200  for (n = 0; n < 16; n++)
201  block[n] = AV_RL32(buffer + 4 * n);
202  n = 0;
203 
204 #if CONFIG_SMALL
205  for (; n < 16;) {
206  ROUND128_0_TO_15(a,b,c,d,e,f,g,h);
207  t = d; d = c; c = b; b = a; a = t;
208  t = h; h = g; g = f; f = e; e = t;
209  }
210  FFSWAP(uint32_t, a, e);
211 
212  for (; n < 32;) {
213  ROUND128_16_TO_31(a,b,c,d,e,f,g,h);
214  t = d; d = c; c = b; b = a; a = t;
215  t = h; h = g; g = f; f = e; e = t;
216  }
217  FFSWAP(uint32_t, b, f);
218 
219  for (; n < 48;) {
220  ROUND128_32_TO_47(a,b,c,d,e,f,g,h);
221  t = d; d = c; c = b; b = a; a = t;
222  t = h; h = g; g = f; f = e; e = t;
223  }
224  FFSWAP(uint32_t, c, g);
225 
226  for (; n < 64;) {
227  ROUND128_48_TO_63(a,b,c,d,e,f,g,h);
228  t = d; d = c; c = b; b = a; a = t;
229  t = h; h = g; g = f; f = e; e = t;
230  }
231  FFSWAP(uint32_t, d, h);
232 #else
233 
235  FFSWAP(uint32_t, a, e);
236 
238  FFSWAP(uint32_t, b, f);
239 
241  FFSWAP(uint32_t, c, g);
242 
244  FFSWAP(uint32_t, d, h);
245 #endif
246 
247  state[0] += a; state[1] += b; state[2] += c; state[3] += d;
248  state[4] += e; state[5] += f; state[6] += g; state[7] += h;
249 }
250 
251 #define ROTATE(x,y) \
252  x = rol(x, 10); \
253  y = rol(y, 10); \
254  n++
255 
256 #define ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j) \
257  a = rol(a + (( b ^ c ^ d) + block[WA[n]]), ROTA[n]) + e; \
258  f = rol(f + (((~i | h) ^ g) + block[WB[n]] + KB[0]), ROTB[n]) + j; \
259  ROTATE(c,h)
260 
261 #define ROUND160_16_TO_31(a,b,c,d,e,f,g,h,i,j) \
262  a = rol(a + ((((c ^ d) & b) ^ d) + block[WA[n]] + KA[0]), ROTA[n]) + e; \
263  f = rol(f + ((((g ^ h) & i) ^ h) + block[WB[n]] + KB[1]), ROTB[n]) + j; \
264  ROTATE(c,h)
265 
266 #define ROUND160_32_TO_47(a,b,c,d,e,f,g,h,i,j) \
267  a = rol(a + (((~c | b) ^ d) + block[WA[n]] + KA[1]), ROTA[n]) + e; \
268  f = rol(f + (((~h | g) ^ i) + block[WB[n]] + KB[2]), ROTB[n]) + j; \
269  ROTATE(c,h)
270 
271 #define ROUND160_48_TO_63(a,b,c,d,e,f,g,h,i,j) \
272  a = rol(a + ((((b ^ c) & d) ^ c) + block[WA[n]] + KA[2]), ROTA[n]) + e; \
273  f = rol(f + ((((h ^ i) & g) ^ i) + block[WB[n]] + KB[3]), ROTB[n]) + j; \
274  ROTATE(c,h)
275 
276 #define ROUND160_64_TO_79(a,b,c,d,e,f,g,h,i,j) \
277  a = rol(a + (((~d | c) ^ b) + block[WA[n]] + KA[3]), ROTA[n]) + e; \
278  f = rol(f + (( g ^ h ^ i) + block[WB[n]]), ROTB[n]) + j; \
279  ROTATE(c,h)
280 
281 #define R160_0 \
282  ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j); \
283  ROUND160_0_TO_15(e,a,b,c,d,j,f,g,h,i); \
284  ROUND160_0_TO_15(d,e,a,b,c,i,j,f,g,h); \
285  ROUND160_0_TO_15(c,d,e,a,b,h,i,j,f,g); \
286  ROUND160_0_TO_15(b,c,d,e,a,g,h,i,j,f)
287 
288 #define R160_16 \
289  ROUND160_16_TO_31(e,a,b,c,d,j,f,g,h,i); \
290  ROUND160_16_TO_31(d,e,a,b,c,i,j,f,g,h); \
291  ROUND160_16_TO_31(c,d,e,a,b,h,i,j,f,g); \
292  ROUND160_16_TO_31(b,c,d,e,a,g,h,i,j,f); \
293  ROUND160_16_TO_31(a,b,c,d,e,f,g,h,i,j)
294 
295 #define R160_32 \
296  ROUND160_32_TO_47(d,e,a,b,c,i,j,f,g,h); \
297  ROUND160_32_TO_47(c,d,e,a,b,h,i,j,f,g); \
298  ROUND160_32_TO_47(b,c,d,e,a,g,h,i,j,f); \
299  ROUND160_32_TO_47(a,b,c,d,e,f,g,h,i,j); \
300  ROUND160_32_TO_47(e,a,b,c,d,j,f,g,h,i)
301 
302 #define R160_48 \
303  ROUND160_48_TO_63(c,d,e,a,b,h,i,j,f,g); \
304  ROUND160_48_TO_63(b,c,d,e,a,g,h,i,j,f); \
305  ROUND160_48_TO_63(a,b,c,d,e,f,g,h,i,j); \
306  ROUND160_48_TO_63(e,a,b,c,d,j,f,g,h,i); \
307  ROUND160_48_TO_63(d,e,a,b,c,i,j,f,g,h)
308 
309 #define R160_64 \
310  ROUND160_64_TO_79(b,c,d,e,a,g,h,i,j,f); \
311  ROUND160_64_TO_79(a,b,c,d,e,f,g,h,i,j); \
312  ROUND160_64_TO_79(e,a,b,c,d,j,f,g,h,i); \
313  ROUND160_64_TO_79(d,e,a,b,c,i,j,f,g,h); \
314  ROUND160_64_TO_79(c,d,e,a,b,h,i,j,f,g)
315 
316 static void ripemd160_transform(uint32_t *state, const uint8_t buffer[64])
317 {
318  uint32_t a, b, c, d, e, f, g, h, i, j, av_unused t;
319  uint32_t block[16];
320  int n;
321 
322  a = f = state[0];
323  b = g = state[1];
324  c = h = state[2];
325  d = i = state[3];
326  e = j = state[4];
327 
328  for (n = 0; n < 16; n++)
329  block[n] = AV_RL32(buffer + 4 * n);
330  n = 0;
331 
332 #if CONFIG_SMALL
333  for (; n < 16;) {
334  ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j);
335  t = e; e = d; d = c; c = b; b = a; a = t;
336  t = j; j = i; i = h; h = g; g = f; f = t;
337  }
338 
339  for (; n < 32;) {
340  ROUND160_16_TO_31(a,b,c,d,e,f,g,h,i,j);
341  t = e; e = d; d = c; c = b; b = a; a = t;
342  t = j; j = i; i = h; h = g; g = f; f = t;
343  }
344 
345  for (; n < 48;) {
346  ROUND160_32_TO_47(a,b,c,d,e,f,g,h,i,j);
347  t = e; e = d; d = c; c = b; b = a; a = t;
348  t = j; j = i; i = h; h = g; g = f; f = t;
349  }
350 
351  for (; n < 64;) {
352  ROUND160_48_TO_63(a,b,c,d,e,f,g,h,i,j);
353  t = e; e = d; d = c; c = b; b = a; a = t;
354  t = j; j = i; i = h; h = g; g = f; f = t;
355  }
356 
357  for (; n < 80;) {
358  ROUND160_64_TO_79(a,b,c,d,e,f,g,h,i,j);
359  t = e; e = d; d = c; c = b; b = a; a = t;
360  t = j; j = i; i = h; h = g; g = f; f = t;
361  }
362 #else
363 
364  R160_0; R160_0; R160_0;
365  ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j);
366 
368  ROUND160_16_TO_31(e,a,b,c,d,j,f,g,h,i);
369 
371  ROUND160_32_TO_47(d,e,a,b,c,i,j,f,g,h);
372 
374  ROUND160_48_TO_63(c,d,e,a,b,h,i,j,f,g);
375 
377  ROUND160_64_TO_79(b,c,d,e,a,g,h,i,j,f);
378 #endif
379 
380  i += c + state[1];
381  state[1] = state[2] + d + j;
382  state[2] = state[3] + e + f;
383  state[3] = state[4] + a + g;
384  state[4] = state[0] + b + h;
385  state[0] = i;
386 }
387 
388 static void ripemd320_transform(uint32_t *state, const uint8_t buffer[64])
389 {
390  uint32_t a, b, c, d, e, f, g, h, i, j, av_unused t;
391  uint32_t block[16];
392  int n;
393 
394  a = state[0]; b = state[1]; c = state[2]; d = state[3]; e = state[4];
395  f = state[5]; g = state[6]; h = state[7]; i = state[8]; j = state[9];
396 
397  for (n = 0; n < 16; n++)
398  block[n] = AV_RL32(buffer + 4 * n);
399  n = 0;
400 
401 #if CONFIG_SMALL
402  for (; n < 16;) {
403  ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j);
404  t = e; e = d; d = c; c = b; b = a; a = t;
405  t = j; j = i; i = h; h = g; g = f; f = t;
406  }
407  FFSWAP(uint32_t, b, g);
408 
409  for (; n < 32;) {
410  ROUND160_16_TO_31(a,b,c,d,e,f,g,h,i,j);
411  t = e; e = d; d = c; c = b; b = a; a = t;
412  t = j; j = i; i = h; h = g; g = f; f = t;
413  }
414  FFSWAP(uint32_t, d, i);
415 
416  for (; n < 48;) {
417  ROUND160_32_TO_47(a,b,c,d,e,f,g,h,i,j);
418  t = e; e = d; d = c; c = b; b = a; a = t;
419  t = j; j = i; i = h; h = g; g = f; f = t;
420  }
421  FFSWAP(uint32_t, a, f);
422 
423  for (; n < 64;) {
424  ROUND160_48_TO_63(a,b,c,d,e,f,g,h,i,j);
425  t = e; e = d; d = c; c = b; b = a; a = t;
426  t = j; j = i; i = h; h = g; g = f; f = t;
427  }
428  FFSWAP(uint32_t, c, h);
429 
430  for (; n < 80;) {
431  ROUND160_64_TO_79(a,b,c,d,e,f,g,h,i,j);
432  t = e; e = d; d = c; c = b; b = a; a = t;
433  t = j; j = i; i = h; h = g; g = f; f = t;
434  }
435  FFSWAP(uint32_t, e, j);
436 #else
437 
438  R160_0; R160_0; R160_0;
439  ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j);
440  FFSWAP(uint32_t, a, f);
441 
443  ROUND160_16_TO_31(e,a,b,c,d,j,f,g,h,i);
444  FFSWAP(uint32_t, b, g);
445 
447  ROUND160_32_TO_47(d,e,a,b,c,i,j,f,g,h);
448  FFSWAP(uint32_t, c, h);
449 
451  ROUND160_48_TO_63(c,d,e,a,b,h,i,j,f,g);
452  FFSWAP(uint32_t, d, i);
453 
455  ROUND160_64_TO_79(b,c,d,e,a,g,h,i,j,f);
456  FFSWAP(uint32_t, e, j);
457 #endif
458 
459  state[0] += a; state[1] += b; state[2] += c; state[3] += d; state[4] += e;
460  state[5] += f; state[6] += g; state[7] += h; state[8] += i; state[9] += j;
461 }
462 
464 {
465  ctx->digest_len = bits >> 5;
466  switch (bits) {
467  case 128: // RIPEMD-128
468  ctx->state[0] = 0x67452301;
469  ctx->state[1] = 0xEFCDAB89;
470  ctx->state[2] = 0x98BADCFE;
471  ctx->state[3] = 0x10325476;
473  break;
474  case 160: // RIPEMD-160
475  ctx->state[0] = 0x67452301;
476  ctx->state[1] = 0xEFCDAB89;
477  ctx->state[2] = 0x98BADCFE;
478  ctx->state[3] = 0x10325476;
479  ctx->state[4] = 0xC3D2E1F0;
481  break;
482  case 256: // RIPEMD-256
483  ctx->state[0] = 0x67452301;
484  ctx->state[1] = 0xEFCDAB89;
485  ctx->state[2] = 0x98BADCFE;
486  ctx->state[3] = 0x10325476;
487  ctx->state[4] = 0x76543210;
488  ctx->state[5] = 0xFEDCBA98;
489  ctx->state[6] = 0x89ABCDEF;
490  ctx->state[7] = 0x01234567;
492  break;
493  case 320: // RIPEMD-320
494  ctx->state[0] = 0x67452301;
495  ctx->state[1] = 0xEFCDAB89;
496  ctx->state[2] = 0x98BADCFE;
497  ctx->state[3] = 0x10325476;
498  ctx->state[4] = 0xC3D2E1F0;
499  ctx->state[5] = 0x76543210;
500  ctx->state[6] = 0xFEDCBA98;
501  ctx->state[7] = 0x89ABCDEF;
502  ctx->state[8] = 0x01234567;
503  ctx->state[9] = 0x3C2D1E0F;
505  break;
506  default:
507  return AVERROR(EINVAL);
508  }
509  ctx->count = 0;
510  return 0;
511 }
512 
513 void av_ripemd_update(AVRIPEMD* ctx, const uint8_t* data, unsigned int len)
514 {
515  unsigned int i, j;
516 
517  j = ctx->count & 63;
518  ctx->count += len;
519 #if CONFIG_SMALL
520  for (i = 0; i < len; i++) {
521  ctx->buffer[j++] = data[i];
522  if (64 == j) {
523  ctx->transform(ctx->state, ctx->buffer);
524  j = 0;
525  }
526  }
527 #else
528  if ((j + len) > 63) {
529  memcpy(&ctx->buffer[j], data, (i = 64 - j));
530  ctx->transform(ctx->state, ctx->buffer);
531  for (; i + 63 < len; i += 64)
532  ctx->transform(ctx->state, &data[i]);
533  j = 0;
534  } else
535  i = 0;
536  memcpy(&ctx->buffer[j], &data[i], len - i);
537 #endif
538 }
539 
541 {
542  int i;
543  uint64_t finalcount = av_le2ne64(ctx->count << 3);
544 
545  av_ripemd_update(ctx, "\200", 1);
546  while ((ctx->count & 63) != 56)
547  av_ripemd_update(ctx, "", 1);
548  av_ripemd_update(ctx, (uint8_t *)&finalcount, 8); /* Should cause a transform() */
549  for (i = 0; i < ctx->digest_len; i++)
550  AV_WL32(digest + i*4, ctx->state[i]);
551 }
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
#define R128_0
Definition: ripemd.c:110
void av_ripemd_update(AVRIPEMD *ctx, const uint8_t *data, unsigned int len)
Update hash value.
Definition: ripemd.c:513
memory handling functions
const char * g
Definition: vf_curves.c:112
#define ROUND160_0_TO_15(a, b, c, d, e, f, g, h, i, j)
Definition: ripemd.c:256
const char * b
Definition: vf_curves.c:113
external API header
static const uint32_t KB[4]
Definition: ripemd.c:52
static void ripemd320_transform(uint32_t *state, const uint8_t buffer[64])
Definition: ripemd.c:388
Macro definitions for various function/variable attributes.
void av_ripemd_final(AVRIPEMD *ctx, uint8_t *digest)
Finish hashing and output digest value.
Definition: ripemd.c:540
uint8_t bits
Definition: crc.c:296
uint8_t
#define av_cold
Definition: attributes.h:82
#define ROUND160_48_TO_63(a, b, c, d, e, f, g, h, i, j)
Definition: ripemd.c:271
#define ROUND128_0_TO_15(a, b, c, d, e, f, g, h)
Definition: ripemd.c:90
#define R160_32
Definition: ripemd.c:295
uint8_t buffer[64]
512-bit buffer of input values used in hash updating
Definition: ripemd.c:35
#define AVERROR(e)
Definition: error.h:43
#define ROUND160_64_TO_79(a, b, c, d, e, f, g, h, i, j)
Definition: ripemd.c:276
struct AVRIPEMD * av_ripemd_alloc(void)
Allocate an AVRIPEMD context.
Definition: ripemd.c:43
static const int ROTB[80]
Definition: ripemd.c:64
#define R128_16
Definition: ripemd.c:116
#define R160_64
Definition: ripemd.c:309
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
#define R160_0
Definition: ripemd.c:281
static void ripemd128_transform(uint32_t *state, const uint8_t buffer[64])
Definition: ripemd.c:134
#define R128_32
Definition: ripemd.c:122
static const int WB[80]
Definition: ripemd.c:80
AVFormatContext * ctx
Definition: movenc.c:48
int n
Definition: avisynth_c.h:547
static const int WA[80]
Definition: ripemd.c:72
static const uint32_t KA[4]
Definition: ripemd.c:48
#define ROUND128_32_TO_47(a, b, c, d, e, f, g, h)
Definition: ripemd.c:100
uint64_t count
number of bytes in buffer
Definition: ripemd.c:34
static const int ROTA[80]
Definition: ripemd.c:56
#define ROUND160_32_TO_47(a, b, c, d, e, f, g, h, i, j)
Definition: ripemd.c:266
hash context
Definition: ripemd.c:32
uint8_t digest_len
digest length in 32-bit words
Definition: ripemd.c:33
#define av_le2ne64(x)
Definition: bswap.h:97
static void ripemd256_transform(uint32_t *state, const uint8_t buffer[64])
Definition: ripemd.c:191
byte swapping routines
#define ROUND160_16_TO_31(a, b, c, d, e, f, g, h, i, j)
Definition: ripemd.c:261
#define ROUND128_48_TO_63(a, b, c, d, e, f, g, h)
Definition: ripemd.c:105
av_cold int av_ripemd_init(AVRIPEMD *ctx, int bits)
Initialize RIPEMD hashing.
Definition: ripemd.c:463
uint32_t state[10]
current hash value
Definition: ripemd.c:36
void(* transform)(uint32_t *state, const uint8_t buffer[64])
function used to update hash for 512-bit input block
Definition: ripemd.c:38
static void ripemd160_transform(uint32_t *state, const uint8_t buffer[64])
Definition: ripemd.c:316
static double c[64]
#define R160_16
Definition: ripemd.c:288
int len
const int av_ripemd_size
Definition: ripemd.c:41
#define FFSWAP(type, a, b)
Definition: common.h:99
static struct @230 state
#define R128_48
Definition: ripemd.c:128
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:87
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
Definition: mem.c:252
#define R160_48
Definition: ripemd.c:302
GLuint buffer
Definition: opengl_enc.c:102
#define av_unused
Definition: attributes.h:126
#define AV_WL32(p, v)
Definition: intreadwrite.h:426
#define ROUND128_16_TO_31(a, b, c, d, e, f, g, h)
Definition: ripemd.c:95
static int16_t block[64]
Definition: dct-test.c:112