1/* sha512.c - SHA384 and SHA512 hash functions
2 * Copyright (C) 2003, 2008, 2009 Free Software Foundation, Inc.
3 *
4 * This file is part of Libgcrypt.
5 *
6 * Libgcrypt is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU Lesser general Public License as
8 * published by the Free Software Foundation; either version 2.1 of
9 * the License, or (at your option) any later version.
10 *
11 * Libgcrypt is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19
20
21/*  Test vectors from FIPS-180-2:
22 *
23 *  "abc"
24 * 384:
25 *  CB00753F 45A35E8B B5A03D69 9AC65007 272C32AB 0EDED163
26 *  1A8B605A 43FF5BED 8086072B A1E7CC23 58BAECA1 34C825A7
27 * 512:
28 *  DDAF35A1 93617ABA CC417349 AE204131 12E6FA4E 89A97EA2 0A9EEEE6 4B55D39A
29 *  2192992A 274FC1A8 36BA3C23 A3FEEBBD 454D4423 643CE80E 2A9AC94F A54CA49F
30 *
31 *  "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"
32 * 384:
33 *  09330C33 F71147E8 3D192FC7 82CD1B47 53111B17 3B3B05D2
34 *  2FA08086 E3B0F712 FCC7C71A 557E2DB9 66C3E9FA 91746039
35 * 512:
36 *  8E959B75 DAE313DA 8CF4F728 14FC143F 8F7779C6 EB9F7FA1 7299AEAD B6889018
37 *  501D289E 4900F7E4 331B99DE C4B5433A C7D329EE B6DD2654 5E96E55B 874BE909
38 *
39 *  "a" x 1000000
40 * 384:
41 *  9D0E1809 716474CB 086E834E 310A4A1C ED149E9C 00F24852
42 *  7972CEC5 704C2A5B 07B8B3DC 38ECC4EB AE97DDD8 7F3D8985
43 * 512:
44 *  E718483D 0CE76964 4E2E42C7 BC15B463 8E1F98B1 3B204428 5632A803 AFA973EB
45 *  DE0FF244 877EA60A 4CB0432C E577C31B EB009C5C 2C49AA2E 4EADB217 AD8CC09B
46 */
47
48
49#include <config.h>
50#include <string.h>
51#include "g10lib.h"
52#include "bithelp.h"
53#include "cipher.h"
54#include "hash-common.h"
55
56typedef struct
57{
58  u64 h0, h1, h2, h3, h4, h5, h6, h7;
59  u64 nblocks;
60  byte buf[128];
61  int count;
62} SHA512_CONTEXT;
63
64static void
65sha512_init (void *context)
66{
67  SHA512_CONTEXT *hd = context;
68
69  hd->h0 = U64_C(0x6a09e667f3bcc908);
70  hd->h1 = U64_C(0xbb67ae8584caa73b);
71  hd->h2 = U64_C(0x3c6ef372fe94f82b);
72  hd->h3 = U64_C(0xa54ff53a5f1d36f1);
73  hd->h4 = U64_C(0x510e527fade682d1);
74  hd->h5 = U64_C(0x9b05688c2b3e6c1f);
75  hd->h6 = U64_C(0x1f83d9abfb41bd6b);
76  hd->h7 = U64_C(0x5be0cd19137e2179);
77
78  hd->nblocks = 0;
79  hd->count = 0;
80}
81
82static void
83sha384_init (void *context)
84{
85  SHA512_CONTEXT *hd = context;
86
87  hd->h0 = U64_C(0xcbbb9d5dc1059ed8);
88  hd->h1 = U64_C(0x629a292a367cd507);
89  hd->h2 = U64_C(0x9159015a3070dd17);
90  hd->h3 = U64_C(0x152fecd8f70e5939);
91  hd->h4 = U64_C(0x67332667ffc00b31);
92  hd->h5 = U64_C(0x8eb44a8768581511);
93  hd->h6 = U64_C(0xdb0c2e0d64f98fa7);
94  hd->h7 = U64_C(0x47b5481dbefa4fa4);
95
96  hd->nblocks = 0;
97  hd->count = 0;
98}
99
100
101static inline u64
102ROTR (u64 x, u64 n)
103{
104  return ((x >> n) | (x << (64 - n)));
105}
106
107static inline u64
108Ch (u64 x, u64 y, u64 z)
109{
110  return ((x & y) ^ ( ~x & z));
111}
112
113static inline u64
114Maj (u64 x, u64 y, u64 z)
115{
116  return ((x & y) ^ (x & z) ^ (y & z));
117}
118
119static inline u64
120Sum0 (u64 x)
121{
122  return (ROTR (x, 28) ^ ROTR (x, 34) ^ ROTR (x, 39));
123}
124
125static inline u64
126Sum1 (u64 x)
127{
128  return (ROTR (x, 14) ^ ROTR (x, 18) ^ ROTR (x, 41));
129}
130
131/****************
132 * Transform the message W which consists of 16 64-bit-words
133 */
134static void
135transform (SHA512_CONTEXT *hd, const unsigned char *data)
136{
137  u64 a, b, c, d, e, f, g, h;
138  u64 w[80];
139  int t;
140  static const u64 k[] =
141    {
142      U64_C(0x428a2f98d728ae22), U64_C(0x7137449123ef65cd),
143      U64_C(0xb5c0fbcfec4d3b2f), U64_C(0xe9b5dba58189dbbc),
144      U64_C(0x3956c25bf348b538), U64_C(0x59f111f1b605d019),
145      U64_C(0x923f82a4af194f9b), U64_C(0xab1c5ed5da6d8118),
146      U64_C(0xd807aa98a3030242), U64_C(0x12835b0145706fbe),
147      U64_C(0x243185be4ee4b28c), U64_C(0x550c7dc3d5ffb4e2),
148      U64_C(0x72be5d74f27b896f), U64_C(0x80deb1fe3b1696b1),
149      U64_C(0x9bdc06a725c71235), U64_C(0xc19bf174cf692694),
150      U64_C(0xe49b69c19ef14ad2), U64_C(0xefbe4786384f25e3),
151      U64_C(0x0fc19dc68b8cd5b5), U64_C(0x240ca1cc77ac9c65),
152      U64_C(0x2de92c6f592b0275), U64_C(0x4a7484aa6ea6e483),
153      U64_C(0x5cb0a9dcbd41fbd4), U64_C(0x76f988da831153b5),
154      U64_C(0x983e5152ee66dfab), U64_C(0xa831c66d2db43210),
155      U64_C(0xb00327c898fb213f), U64_C(0xbf597fc7beef0ee4),
156      U64_C(0xc6e00bf33da88fc2), U64_C(0xd5a79147930aa725),
157      U64_C(0x06ca6351e003826f), U64_C(0x142929670a0e6e70),
158      U64_C(0x27b70a8546d22ffc), U64_C(0x2e1b21385c26c926),
159      U64_C(0x4d2c6dfc5ac42aed), U64_C(0x53380d139d95b3df),
160      U64_C(0x650a73548baf63de), U64_C(0x766a0abb3c77b2a8),
161      U64_C(0x81c2c92e47edaee6), U64_C(0x92722c851482353b),
162      U64_C(0xa2bfe8a14cf10364), U64_C(0xa81a664bbc423001),
163      U64_C(0xc24b8b70d0f89791), U64_C(0xc76c51a30654be30),
164      U64_C(0xd192e819d6ef5218), U64_C(0xd69906245565a910),
165      U64_C(0xf40e35855771202a), U64_C(0x106aa07032bbd1b8),
166      U64_C(0x19a4c116b8d2d0c8), U64_C(0x1e376c085141ab53),
167      U64_C(0x2748774cdf8eeb99), U64_C(0x34b0bcb5e19b48a8),
168      U64_C(0x391c0cb3c5c95a63), U64_C(0x4ed8aa4ae3418acb),
169      U64_C(0x5b9cca4f7763e373), U64_C(0x682e6ff3d6b2b8a3),
170      U64_C(0x748f82ee5defb2fc), U64_C(0x78a5636f43172f60),
171      U64_C(0x84c87814a1f0ab72), U64_C(0x8cc702081a6439ec),
172      U64_C(0x90befffa23631e28), U64_C(0xa4506cebde82bde9),
173      U64_C(0xbef9a3f7b2c67915), U64_C(0xc67178f2e372532b),
174      U64_C(0xca273eceea26619c), U64_C(0xd186b8c721c0c207),
175      U64_C(0xeada7dd6cde0eb1e), U64_C(0xf57d4f7fee6ed178),
176      U64_C(0x06f067aa72176fba), U64_C(0x0a637dc5a2c898a6),
177      U64_C(0x113f9804bef90dae), U64_C(0x1b710b35131c471b),
178      U64_C(0x28db77f523047d84), U64_C(0x32caab7b40c72493),
179      U64_C(0x3c9ebe0a15c9bebc), U64_C(0x431d67c49c100d4c),
180      U64_C(0x4cc5d4becb3e42b6), U64_C(0x597f299cfc657e2a),
181      U64_C(0x5fcb6fab3ad6faec), U64_C(0x6c44198c4a475817)
182    };
183
184  /* get values from the chaining vars */
185  a = hd->h0;
186  b = hd->h1;
187  c = hd->h2;
188  d = hd->h3;
189  e = hd->h4;
190  f = hd->h5;
191  g = hd->h6;
192  h = hd->h7;
193
194#ifdef WORDS_BIGENDIAN
195  memcpy (w, data, 128);
196#else
197  {
198    int i;
199    byte *p2;
200
201    for (i = 0, p2 = (byte *) w; i < 16; i++, p2 += 8)
202      {
203	p2[7] = *data++;
204	p2[6] = *data++;
205	p2[5] = *data++;
206	p2[4] = *data++;
207	p2[3] = *data++;
208	p2[2] = *data++;
209	p2[1] = *data++;
210	p2[0] = *data++;
211      }
212  }
213#endif
214
215#define S0(x) (ROTR((x),1) ^ ROTR((x),8) ^ ((x)>>7))
216#define S1(x) (ROTR((x),19) ^ ROTR((x),61) ^ ((x)>>6))
217
218  for (t = 16; t < 80; t++)
219    w[t] = S1 (w[t - 2]) + w[t - 7] + S0 (w[t - 15]) + w[t - 16];
220
221
222  for (t = 0; t < 80; )
223    {
224      u64 t1, t2;
225
226      /* Performance on a AMD Athlon(tm) Dual Core Processor 4050e
227         with gcc 4.3.3 using gcry_md_hash_buffer of each 10000 bytes
228         initialized to 0,1,2,3...255,0,... and 1000 iterations:
229
230         Not unrolled with macros:  440ms
231         Unrolled with macros:      350ms
232         Unrolled with inline:      330ms
233      */
234#if 0 /* Not unrolled.  */
235      t1 = h + Sum1 (e) + Ch (e, f, g) + k[t] + w[t];
236      t2 = Sum0 (a) + Maj (a, b, c);
237      h = g;
238      g = f;
239      f = e;
240      e = d + t1;
241      d = c;
242      c = b;
243      b = a;
244      a = t1 + t2;
245      t++;
246#else /* Unrolled to interweave the chain variables.  */
247      t1 = h + Sum1 (e) + Ch (e, f, g) + k[t] + w[t];
248      t2 = Sum0 (a) + Maj (a, b, c);
249      d += t1;
250      h  = t1 + t2;
251
252      t1 = g + Sum1 (d) + Ch (d, e, f) + k[t+1] + w[t+1];
253      t2 = Sum0 (h) + Maj (h, a, b);
254      c += t1;
255      g  = t1 + t2;
256
257      t1 = f + Sum1 (c) + Ch (c, d, e) + k[t+2] + w[t+2];
258      t2 = Sum0 (g) + Maj (g, h, a);
259      b += t1;
260      f  = t1 + t2;
261
262      t1 = e + Sum1 (b) + Ch (b, c, d) + k[t+3] + w[t+3];
263      t2 = Sum0 (f) + Maj (f, g, h);
264      a += t1;
265      e  = t1 + t2;
266
267      t1 = d + Sum1 (a) + Ch (a, b, c) + k[t+4] + w[t+4];
268      t2 = Sum0 (e) + Maj (e, f, g);
269      h += t1;
270      d  = t1 + t2;
271
272      t1 = c + Sum1 (h) + Ch (h, a, b) + k[t+5] + w[t+5];
273      t2 = Sum0 (d) + Maj (d, e, f);
274      g += t1;
275      c  = t1 + t2;
276
277      t1 = b + Sum1 (g) + Ch (g, h, a) + k[t+6] + w[t+6];
278      t2 = Sum0 (c) + Maj (c, d, e);
279      f += t1;
280      b  = t1 + t2;
281
282      t1 = a + Sum1 (f) + Ch (f, g, h) + k[t+7] + w[t+7];
283      t2 = Sum0 (b) + Maj (b, c, d);
284      e += t1;
285      a  = t1 + t2;
286
287      t += 8;
288#endif
289    }
290
291  /* Update chaining vars.  */
292  hd->h0 += a;
293  hd->h1 += b;
294  hd->h2 += c;
295  hd->h3 += d;
296  hd->h4 += e;
297  hd->h5 += f;
298  hd->h6 += g;
299  hd->h7 += h;
300}
301
302
303/* Update the message digest with the contents
304 * of INBUF with length INLEN.
305 */
306static void
307sha512_write (void *context, const void *inbuf_arg, size_t inlen)
308{
309  const unsigned char *inbuf = inbuf_arg;
310  SHA512_CONTEXT *hd = context;
311
312  if (hd->count == 128)
313    {				/* flush the buffer */
314      transform (hd, hd->buf);
315      _gcry_burn_stack (768);
316      hd->count = 0;
317      hd->nblocks++;
318    }
319  if (!inbuf)
320    return;
321  if (hd->count)
322    {
323      for (; inlen && hd->count < 128; inlen--)
324	hd->buf[hd->count++] = *inbuf++;
325      sha512_write (context, NULL, 0);
326      if (!inlen)
327	return;
328    }
329
330  while (inlen >= 128)
331    {
332      transform (hd, inbuf);
333      hd->count = 0;
334      hd->nblocks++;
335      inlen -= 128;
336      inbuf += 128;
337    }
338  _gcry_burn_stack (768);
339  for (; inlen && hd->count < 128; inlen--)
340    hd->buf[hd->count++] = *inbuf++;
341}
342
343
344/* The routine final terminates the computation and
345 * returns the digest.
346 * The handle is prepared for a new cycle, but adding bytes to the
347 * handle will the destroy the returned buffer.
348 * Returns: 64 bytes representing the digest.  When used for sha384,
349 * we take the leftmost 48 of those bytes.
350 */
351
352static void
353sha512_final (void *context)
354{
355  SHA512_CONTEXT *hd = context;
356  u64 t, msb, lsb;
357  byte *p;
358
359  sha512_write (context, NULL, 0); /* flush */ ;
360
361  t = hd->nblocks;
362  /* multiply by 128 to make a byte count */
363  lsb = t << 7;
364  msb = t >> 57;
365  /* add the count */
366  t = lsb;
367  if ((lsb += hd->count) < t)
368    msb++;
369  /* multiply by 8 to make a bit count */
370  t = lsb;
371  lsb <<= 3;
372  msb <<= 3;
373  msb |= t >> 61;
374
375  if (hd->count < 112)
376    {				/* enough room */
377      hd->buf[hd->count++] = 0x80;	/* pad */
378      while (hd->count < 112)
379	hd->buf[hd->count++] = 0;	/* pad */
380    }
381  else
382    {				/* need one extra block */
383      hd->buf[hd->count++] = 0x80;	/* pad character */
384      while (hd->count < 128)
385	hd->buf[hd->count++] = 0;
386      sha512_write (context, NULL, 0); /* flush */ ;
387      memset (hd->buf, 0, 112);	/* fill next block with zeroes */
388    }
389  /* append the 128 bit count */
390  hd->buf[112] = msb >> 56;
391  hd->buf[113] = msb >> 48;
392  hd->buf[114] = msb >> 40;
393  hd->buf[115] = msb >> 32;
394  hd->buf[116] = msb >> 24;
395  hd->buf[117] = msb >> 16;
396  hd->buf[118] = msb >> 8;
397  hd->buf[119] = msb;
398
399  hd->buf[120] = lsb >> 56;
400  hd->buf[121] = lsb >> 48;
401  hd->buf[122] = lsb >> 40;
402  hd->buf[123] = lsb >> 32;
403  hd->buf[124] = lsb >> 24;
404  hd->buf[125] = lsb >> 16;
405  hd->buf[126] = lsb >> 8;
406  hd->buf[127] = lsb;
407  transform (hd, hd->buf);
408  _gcry_burn_stack (768);
409
410  p = hd->buf;
411#ifdef WORDS_BIGENDIAN
412#define X(a) do { *(u64*)p = hd->h##a ; p += 8; } while (0)
413#else /* little endian */
414#define X(a) do { *p++ = hd->h##a >> 56; *p++ = hd->h##a >> 48;	      \
415                  *p++ = hd->h##a >> 40; *p++ = hd->h##a >> 32;	      \
416                  *p++ = hd->h##a >> 24; *p++ = hd->h##a >> 16;	      \
417                  *p++ = hd->h##a >> 8;  *p++ = hd->h##a; } while (0)
418#endif
419  X (0);
420  X (1);
421  X (2);
422  X (3);
423  X (4);
424  X (5);
425  /* Note that these last two chunks are included even for SHA384.
426     We just ignore them. */
427  X (6);
428  X (7);
429#undef X
430}
431
432static byte *
433sha512_read (void *context)
434{
435  SHA512_CONTEXT *hd = (SHA512_CONTEXT *) context;
436  return hd->buf;
437}
438
439
440
441/*
442     Self-test section.
443 */
444
445
446static gpg_err_code_t
447selftests_sha384 (int extended, selftest_report_func_t report)
448{
449  const char *what;
450  const char *errtxt;
451
452  what = "short string";
453  errtxt = _gcry_hash_selftest_check_one
454    (GCRY_MD_SHA384, 0,
455     "abc", 3,
456     "\xcb\x00\x75\x3f\x45\xa3\x5e\x8b\xb5\xa0\x3d\x69\x9a\xc6\x50\x07"
457     "\x27\x2c\x32\xab\x0e\xde\xd1\x63\x1a\x8b\x60\x5a\x43\xff\x5b\xed"
458     "\x80\x86\x07\x2b\xa1\xe7\xcc\x23\x58\xba\xec\xa1\x34\xc8\x25\xa7", 48);
459  if (errtxt)
460    goto failed;
461
462  if (extended)
463    {
464      what = "long string";
465      errtxt = _gcry_hash_selftest_check_one
466        (GCRY_MD_SHA384, 0,
467         "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
468         "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu", 112,
469         "\x09\x33\x0C\x33\xF7\x11\x47\xE8\x3D\x19\x2F\xC7\x82\xCD\x1B\x47"
470         "\x53\x11\x1B\x17\x3B\x3B\x05\xD2\x2F\xA0\x80\x86\xE3\xB0\xF7\x12"
471         "\xFC\xC7\xC7\x1A\x55\x7E\x2D\xB9\x66\xC3\xE9\xFA\x91\x74\x60\x39",
472         48);
473      if (errtxt)
474        goto failed;
475
476      what = "one million \"a\"";
477      errtxt = _gcry_hash_selftest_check_one
478        (GCRY_MD_SHA384, 1,
479         NULL, 0,
480         "\x9D\x0E\x18\x09\x71\x64\x74\xCB\x08\x6E\x83\x4E\x31\x0A\x4A\x1C"
481         "\xED\x14\x9E\x9C\x00\xF2\x48\x52\x79\x72\xCE\xC5\x70\x4C\x2A\x5B"
482         "\x07\xB8\xB3\xDC\x38\xEC\xC4\xEB\xAE\x97\xDD\xD8\x7F\x3D\x89\x85",
483         48);
484      if (errtxt)
485        goto failed;
486    }
487
488  return 0; /* Succeeded. */
489
490 failed:
491  if (report)
492    report ("digest", GCRY_MD_SHA384, what, errtxt);
493  return GPG_ERR_SELFTEST_FAILED;
494}
495
496static gpg_err_code_t
497selftests_sha512 (int extended, selftest_report_func_t report)
498{
499  const char *what;
500  const char *errtxt;
501
502  what = "short string";
503  errtxt = _gcry_hash_selftest_check_one
504    (GCRY_MD_SHA512, 0,
505     "abc", 3,
506     "\xDD\xAF\x35\xA1\x93\x61\x7A\xBA\xCC\x41\x73\x49\xAE\x20\x41\x31"
507     "\x12\xE6\xFA\x4E\x89\xA9\x7E\xA2\x0A\x9E\xEE\xE6\x4B\x55\xD3\x9A"
508     "\x21\x92\x99\x2A\x27\x4F\xC1\xA8\x36\xBA\x3C\x23\xA3\xFE\xEB\xBD"
509     "\x45\x4D\x44\x23\x64\x3C\xE8\x0E\x2A\x9A\xC9\x4F\xA5\x4C\xA4\x9F", 64);
510  if (errtxt)
511    goto failed;
512
513  if (extended)
514    {
515      what = "long string";
516      errtxt = _gcry_hash_selftest_check_one
517        (GCRY_MD_SHA512, 0,
518         "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
519         "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu", 112,
520         "\x8E\x95\x9B\x75\xDA\xE3\x13\xDA\x8C\xF4\xF7\x28\x14\xFC\x14\x3F"
521         "\x8F\x77\x79\xC6\xEB\x9F\x7F\xA1\x72\x99\xAE\xAD\xB6\x88\x90\x18"
522         "\x50\x1D\x28\x9E\x49\x00\xF7\xE4\x33\x1B\x99\xDE\xC4\xB5\x43\x3A"
523         "\xC7\xD3\x29\xEE\xB6\xDD\x26\x54\x5E\x96\xE5\x5B\x87\x4B\xE9\x09",
524         64);
525      if (errtxt)
526        goto failed;
527
528      what = "one million \"a\"";
529      errtxt = _gcry_hash_selftest_check_one
530        (GCRY_MD_SHA512, 1,
531         NULL, 0,
532         "\xE7\x18\x48\x3D\x0C\xE7\x69\x64\x4E\x2E\x42\xC7\xBC\x15\xB4\x63"
533         "\x8E\x1F\x98\xB1\x3B\x20\x44\x28\x56\x32\xA8\x03\xAF\xA9\x73\xEB"
534         "\xDE\x0F\xF2\x44\x87\x7E\xA6\x0A\x4C\xB0\x43\x2C\xE5\x77\xC3\x1B"
535         "\xEB\x00\x9C\x5C\x2C\x49\xAA\x2E\x4E\xAD\xB2\x17\xAD\x8C\xC0\x9B",
536         64);
537      if (errtxt)
538        goto failed;
539    }
540
541  return 0; /* Succeeded. */
542
543 failed:
544  if (report)
545    report ("digest", GCRY_MD_SHA512, what, errtxt);
546  return GPG_ERR_SELFTEST_FAILED;
547}
548
549
550/* Run a full self-test for ALGO and return 0 on success.  */
551static gpg_err_code_t
552run_selftests (int algo, int extended, selftest_report_func_t report)
553{
554  gpg_err_code_t ec;
555
556  switch (algo)
557    {
558    case GCRY_MD_SHA384:
559      ec = selftests_sha384 (extended, report);
560      break;
561    case GCRY_MD_SHA512:
562      ec = selftests_sha512 (extended, report);
563      break;
564    default:
565      ec = GPG_ERR_DIGEST_ALGO;
566      break;
567
568    }
569  return ec;
570}
571
572
573
574
575static byte sha512_asn[] =	/* Object ID is 2.16.840.1.101.3.4.2.3 */
576  {
577    0x30, 0x51, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86,
578    0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03, 0x05,
579    0x00, 0x04, 0x40
580  };
581
582static gcry_md_oid_spec_t oid_spec_sha512[] =
583  {
584    { "2.16.840.1.101.3.4.2.3" },
585
586    /* PKCS#1 sha512WithRSAEncryption */
587    { "1.2.840.113549.1.1.13" },
588
589    { NULL }
590  };
591
592gcry_md_spec_t _gcry_digest_spec_sha512 =
593  {
594    "SHA512", sha512_asn, DIM (sha512_asn), oid_spec_sha512, 64,
595    sha512_init, sha512_write, sha512_final, sha512_read,
596    sizeof (SHA512_CONTEXT),
597  };
598md_extra_spec_t _gcry_digest_extraspec_sha512 =
599  {
600    run_selftests
601  };
602
603static byte sha384_asn[] =	/* Object ID is 2.16.840.1.101.3.4.2.2 */
604  {
605    0x30, 0x41, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86,
606    0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02, 0x05,
607    0x00, 0x04, 0x30
608  };
609
610static gcry_md_oid_spec_t oid_spec_sha384[] =
611  {
612    { "2.16.840.1.101.3.4.2.2" },
613
614    /* PKCS#1 sha384WithRSAEncryption */
615    { "1.2.840.113549.1.1.12" },
616
617    { NULL },
618  };
619
620gcry_md_spec_t _gcry_digest_spec_sha384 =
621  {
622    "SHA384", sha384_asn, DIM (sha384_asn), oid_spec_sha384, 48,
623    sha384_init, sha512_write, sha512_final, sha512_read,
624    sizeof (SHA512_CONTEXT),
625  };
626md_extra_spec_t _gcry_digest_extraspec_sha384 =
627  {
628    run_selftests
629  };
630