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crypto_bench.c
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1 /*
2  * Copyright (c) 2013 Nicolas George
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public License
8  * as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg 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 License
17  * along with FFmpeg; if not, write to the Free Software Foundation, Inc.,
18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /* Optional external libraries; can be enabled using:
22  * make VERSUS=crypto+gcrypt+tomcrypt tools/crypto_bench */
23 #define USE_crypto 0x01 /* OpenSSL's libcrypto */
24 #define USE_gcrypt 0x02 /* GnuTLS's libgcrypt */
25 #define USE_tomcrypt 0x04 /* LibTomCrypt */
26 
27 #include <stdlib.h>
28 #include <math.h>
29 
30 #include "libavutil/avutil.h"
31 #include "libavutil/avstring.h"
32 #include "libavutil/crc.h"
33 #include "libavutil/intreadwrite.h"
34 #include "libavutil/timer.h"
35 
36 #if HAVE_UNISTD_H
37 #include <unistd.h> /* for getopt */
38 #endif
39 #if !HAVE_GETOPT
40 #include "compat/getopt.c"
41 #endif
42 
43 #define MAX_INPUT_SIZE 1048576
44 #define MAX_OUTPUT_SIZE 128
45 
46 static const char *enabled_libs;
47 static const char *enabled_algos;
48 static unsigned specified_runs;
49 
50 static const uint8_t *hardcoded_key = "FFmpeg is the best program ever.";
51 
52 static void fatal_error(const char *tag)
53 {
54  av_log(NULL, AV_LOG_ERROR, "Fatal error: %s\n", tag);
55  exit(1);
56 }
57 
58 struct hash_impl {
59  const char *lib;
60  const char *name;
61  void (*run)(uint8_t *output, const uint8_t *input, unsigned size);
62  const char *output;
63 };
64 
65 /***************************************************************************
66  * lavu: libavutil
67  ***************************************************************************/
68 
69 #include "libavutil/md5.h"
70 #include "libavutil/sha.h"
71 #include "libavutil/sha512.h"
72 #include "libavutil/ripemd.h"
73 #include "libavutil/aes.h"
74 
75 #define IMPL_USE_lavu IMPL_USE
76 
77 static void run_lavu_md5(uint8_t *output,
78  const uint8_t *input, unsigned size)
79 {
80  av_md5_sum(output, input, size);
81 }
82 
83 #define DEFINE_LAVU_MD(suffix, type, namespace, hsize) \
84 static void run_lavu_ ## suffix(uint8_t *output, \
85  const uint8_t *input, unsigned size) \
86 { \
87  static struct type *h; \
88  if (!h && !(h = av_ ## namespace ## _alloc())) \
89  fatal_error("out of memory"); \
90  av_ ## namespace ## _init(h, hsize); \
91  av_ ## namespace ## _update(h, input, size); \
92  av_ ## namespace ## _final(h, output); \
93 }
94 
95 DEFINE_LAVU_MD(sha1, AVSHA, sha, 160);
96 DEFINE_LAVU_MD(sha256, AVSHA, sha, 256);
97 DEFINE_LAVU_MD(sha512, AVSHA512, sha512, 512);
98 DEFINE_LAVU_MD(ripemd160, AVRIPEMD, ripemd, 160);
99 
100 static void run_lavu_aes128(uint8_t *output,
101  const uint8_t *input, unsigned size)
102 {
103  static struct AVAES *aes;
104  if (!aes && !(aes = av_aes_alloc()))
105  fatal_error("out of memory");
106  av_aes_init(aes, hardcoded_key, 128, 0);
107  av_aes_crypt(aes, output, input, size >> 4, NULL, 0);
108 }
109 
110 /***************************************************************************
111  * crypto: OpenSSL's libcrypto
112  ***************************************************************************/
113 
114 #if (USE_EXT_LIBS) & USE_crypto
115 
116 #include <openssl/md5.h>
117 #include <openssl/sha.h>
118 #include <openssl/ripemd.h>
119 #include <openssl/aes.h>
120 
121 #define DEFINE_CRYPTO_WRAPPER(suffix, function) \
122 static void run_crypto_ ## suffix(uint8_t *output, \
123  const uint8_t *input, unsigned size) \
124 { \
125  function(input, size, output); \
126 }
127 
128 DEFINE_CRYPTO_WRAPPER(md5, MD5)
129 DEFINE_CRYPTO_WRAPPER(sha1, SHA1)
130 DEFINE_CRYPTO_WRAPPER(sha256, SHA256)
131 DEFINE_CRYPTO_WRAPPER(sha512, SHA512)
132 DEFINE_CRYPTO_WRAPPER(ripemd160, RIPEMD160)
133 
134 static void run_crypto_aes128(uint8_t *output,
135  const uint8_t *input, unsigned size)
136 {
137  AES_KEY aes;
138  unsigned i;
139 
140  AES_set_encrypt_key(hardcoded_key, 128, &aes);
141  size -= 15;
142  for (i = 0; i < size; i += 16)
143  AES_encrypt(input + i, output + i, &aes);
144 }
145 
146 #define IMPL_USE_crypto(...) IMPL_USE(__VA_ARGS__)
147 #else
148 #define IMPL_USE_crypto(...) /* ignore */
149 #endif
150 
151 /***************************************************************************
152  * gcrypt: GnuTLS's libgcrypt
153  ***************************************************************************/
154 
155 #if (USE_EXT_LIBS) & USE_gcrypt
156 
157 #include <gcrypt.h>
158 
159 #define DEFINE_GCRYPT_WRAPPER(suffix, algo) \
160 static void run_gcrypt_ ## suffix(uint8_t *output, \
161  const uint8_t *input, unsigned size) \
162 { \
163  gcry_md_hash_buffer(GCRY_MD_ ## algo, output, input, size); \
164 }
165 
166 DEFINE_GCRYPT_WRAPPER(md5, MD5)
167 DEFINE_GCRYPT_WRAPPER(sha1, SHA1)
168 DEFINE_GCRYPT_WRAPPER(sha256, SHA256)
169 DEFINE_GCRYPT_WRAPPER(sha512, SHA512)
170 DEFINE_GCRYPT_WRAPPER(ripemd160, RMD160)
171 
172 static void run_gcrypt_aes128(uint8_t *output,
173  const uint8_t *input, unsigned size)
174 {
175  static gcry_cipher_hd_t aes;
176  if (aes == NULL)
177  gcry_cipher_open(&aes, GCRY_CIPHER_AES128, GCRY_CIPHER_MODE_ECB, 0);
178  gcry_cipher_setkey(aes, hardcoded_key, 16);
179  gcry_cipher_encrypt(aes, output, size, input, size);
180 }
181 
182 #define IMPL_USE_gcrypt(...) IMPL_USE(__VA_ARGS__)
183 #else
184 #define IMPL_USE_gcrypt(...) /* ignore */
185 #endif
186 
187 /***************************************************************************
188  * tomcrypt: LibTomCrypt
189  ***************************************************************************/
190 
191 #if (USE_EXT_LIBS) & USE_tomcrypt
192 
193 #include <tomcrypt.h>
194 
195 #define DEFINE_TOMCRYPT_WRAPPER(suffix, namespace, algo) \
196 static void run_tomcrypt_ ## suffix(uint8_t *output, \
197  const uint8_t *input, unsigned size) \
198 { \
199  hash_state md; \
200  namespace ## _init(&md); \
201  namespace ## _process(&md, input, size); \
202  namespace ## _done(&md, output); \
203 }
204 
205 DEFINE_TOMCRYPT_WRAPPER(md5, md5, MD5)
206 DEFINE_TOMCRYPT_WRAPPER(sha1, sha1, SHA1)
207 DEFINE_TOMCRYPT_WRAPPER(sha256, sha256, SHA256)
208 DEFINE_TOMCRYPT_WRAPPER(sha512, sha512, SHA512)
209 DEFINE_TOMCRYPT_WRAPPER(ripemd160, rmd160, RIPEMD160)
210 
211 static void run_tomcrypt_aes128(uint8_t *output,
212  const uint8_t *input, unsigned size)
213 {
214  symmetric_key aes;
215  unsigned i;
216 
217  aes_setup(hardcoded_key, 16, 0, &aes);
218  size -= 15;
219  for (i = 0; i < size; i += 16)
220  aes_ecb_encrypt(input + i, output + i, &aes);
221 }
222 
223 #define IMPL_USE_tomcrypt(...) IMPL_USE(__VA_ARGS__)
224 #else
225 #define IMPL_USE_tomcrypt(...) /* ignore */
226 #endif
227 
228 /***************************************************************************
229  * Driver code
230  ***************************************************************************/
231 
232 static unsigned crc32(const uint8_t *data, unsigned size)
233 {
234  return av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, data, size);
235 }
236 
237 static void run_implementation(const uint8_t *input, uint8_t *output,
238  struct hash_impl *impl, unsigned size)
239 {
240  uint64_t t0, t1;
241  unsigned nruns = specified_runs ? specified_runs : (1 << 30) / size;
242  unsigned outlen = 0, outcrc = 0;
243  unsigned i, j, val;
244  double mtime, ttime = 0, ttime2 = 0, stime;
245  uint8_t outref[MAX_OUTPUT_SIZE];
246 
247  if (enabled_libs && !av_stristr(enabled_libs, impl->lib) ||
248  enabled_algos && !av_stristr(enabled_algos, impl->name))
249  return;
250  if (!sscanf(impl->output, "crc:%x", &outcrc)) {
251  outlen = strlen(impl->output) / 2;
252  for (i = 0; i < outlen; i++) {
253  sscanf(impl->output + i * 2, "%02x", &val);
254  outref[i] = val;
255  }
256  }
257  for (i = 0; i < 8; i++) /* heat caches */
258  impl->run(output, input, size);
259  for (i = 0; i < nruns; i++) {
260  memset(output, 0, size); /* avoid leftovers from previous runs */
261  t0 = AV_READ_TIME();
262  impl->run(output, input, size);
263  t1 = AV_READ_TIME();
264  if (outlen ? memcmp(output, outref, outlen) :
265  crc32(output, size) != outcrc) {
266  fprintf(stderr, "Expected: ");
267  if (outlen)
268  for (j = 0; j < outlen; j++)
269  fprintf(stderr, "%02x", output[j]);
270  else
271  fprintf(stderr, "%08x", crc32(output, size));
272  fprintf(stderr, "\n");
273  fatal_error("output mismatch");
274  }
275  mtime = (double)(t1 - t0) / size;
276  ttime += mtime;
277  ttime2 += mtime * mtime;
278  }
279 
280  ttime /= nruns;
281  ttime2 /= nruns;
282  stime = sqrt(ttime2 - ttime * ttime);
283  printf("%-10s %-12s size: %7d runs: %6d time: %8.3f +- %.3f\n",
284  impl->lib, impl->name, size, nruns, ttime, stime);
285  fflush(stdout);
286 }
287 
288 #define IMPL_USE(lib, name, symbol, output) \
289  { #lib, name, run_ ## lib ## _ ## symbol, output },
290 #define IMPL(lib, ...) IMPL_USE_ ## lib(lib, __VA_ARGS__)
291 #define IMPL_ALL(...) \
292  IMPL(lavu, __VA_ARGS__) \
293  IMPL(crypto, __VA_ARGS__) \
294  IMPL(gcrypt, __VA_ARGS__) \
295  IMPL(tomcrypt, __VA_ARGS__)
296 
297 struct hash_impl implementations[] = {
298  IMPL_ALL("MD5", md5, "aa26ff5b895356bcffd9292ba9f89e66")
299  IMPL_ALL("SHA-1", sha1, "1fd8bd1fa02f5b0fe916b0d71750726b096c5744")
300  IMPL_ALL("SHA-256", sha256, "14028ac673b3087e51a1d407fbf0df4deeec8f217119e13b07bf2138f93db8c5")
301  IMPL_ALL("SHA-512", sha512, "3afdd44a80d99af15c87bd724cb717243193767835ce866dd5d58c02d674bb57"
302  "7c25b9e118c200a189fcd5a01ef106a4e200061f3e97dbf50ba065745fd46bef")
303  IMPL_ALL("RIPEMD-160", ripemd160, "62a5321e4fc8784903bb43ab7752c75f8b25af00")
304  IMPL_ALL("AES-128", aes128, "crc:ff6bc888")
305 };
306 
307 int main(int argc, char **argv)
308 {
309  uint8_t *input = av_malloc(MAX_INPUT_SIZE * 2);
310  uint8_t *output = input + MAX_INPUT_SIZE;
311  unsigned i, impl, size;
312  int opt;
313 
314  while ((opt = getopt(argc, argv, "hl:a:r:")) != -1) {
315  switch (opt) {
316  case 'l':
317  enabled_libs = optarg;
318  break;
319  case 'a':
320  enabled_algos = optarg;
321  break;
322  case 'r':
323  specified_runs = strtol(optarg, NULL, 0);
324  break;
325  case 'h':
326  default:
327  fprintf(stderr, "Usage: %s [-l libs] [-a algos] [-r runs]\n",
328  argv[0]);
329  if ((USE_EXT_LIBS)) {
330  char buf[1024];
331  snprintf(buf, sizeof(buf), "%s%s%s",
332  ((USE_EXT_LIBS) & USE_crypto) ? "+crypto" : "",
333  ((USE_EXT_LIBS) & USE_gcrypt) ? "+gcrypt" : "",
334  ((USE_EXT_LIBS) & USE_tomcrypt) ? "+tomcrypt" : "");
335  fprintf(stderr, "Built with the following external libraries:\n"
336  "make VERSUS=%s\n", buf + 1);
337  } else {
338  fprintf(stderr, "Built without external libraries; use\n"
339  "make VERSUS=crypto+gcrypt+tomcrypt tools/crypto_bench\n"
340  "to enable them.\n");
341  }
342  exit(opt != 'h');
343  }
344  }
345 
346  if (!input)
347  fatal_error("out of memory");
348  for (i = 0; i < MAX_INPUT_SIZE; i += 4)
349  AV_WB32(input + i, i);
350 
351  size = MAX_INPUT_SIZE;
352  for (impl = 0; impl < FF_ARRAY_ELEMS(implementations); impl++)
353  run_implementation(input, output, &implementations[impl], size);
354 
355  av_free(input);
356 
357  return 0;
358 }
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