nettle-benchmark.c 4.97 KB
Newer Older
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
/* nettle-benchmark.c
 *
 * Tries the performance of the various algorithms.
 *
 */
 
/* nettle, low-level cryptographics library
 *
 * Copyright (C) 2001 Niels Mller
 *  
 * The nettle library is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or (at your
 * option) any later version.
 * 
 * The nettle library 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 Lesser General Public
 * License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with the nettle library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA 02111-1307, USA.
 */

#include "aes.h"
Niels Möller's avatar
Niels Möller committed
28 29 30 31 32 33 34
#include "arcfour.h"
#include "blowfish.h"
#include "cast128.h"
#include "des.h"
#include "serpent.h"
#include "twofish.h"

35 36 37
#include "nettle-meta.h"
#include "nettle-internal.h"

38 39
#include "cbc.h"

Niels Möller's avatar
Niels Möller committed
40
#include <assert.h>
41 42 43 44 45 46 47
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <time.h>

Niels Möller's avatar
Niels Möller committed
48 49 50 51 52 53
#if __GNUC__
# define UNUSED __attribute__ ((__unused__))
#else
# define UNUSED
#endif

Niels Möller's avatar
Niels Möller committed
54
/* Encrypt 10MB, 1K at a time. */
Niels Möller's avatar
Niels Möller committed
55 56
#define BENCH_BLOCK 1024
#define BENCH_COUNT 10240
57

Niels Möller's avatar
Niels Möller committed
58 59 60
/* Total MB:s, for MB/s figures. */
#define BENCH_TOTAL 10.0

61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78
static double
time_function(void (*f)(void *arg), void *arg)
{
  clock_t before;
  clock_t after;

  before = clock();
  
  f(arg);
  
  after = clock();

  return ((double)(after - before)) / CLOCKS_PER_SEC;
}

struct bench_cipher_info
{
  void *ctx;
79
  nettle_crypt_func crypt;
80 81 82 83 84 85 86 87 88
  uint8_t *data;
};

static void
bench_cipher(void *arg)
{
  struct bench_cipher_info *info = arg;
  unsigned i;
  
Niels Möller's avatar
Niels Möller committed
89 90
  for (i = 0; i<BENCH_COUNT; i++)
    info->crypt(info->ctx, BENCH_BLOCK, info->data, info->data);
91 92 93 94 95
}

struct bench_cbc_info
{
  void *ctx;
96 97
  nettle_crypt_func crypt;
 
98
  uint8_t *data;
99
  
100 101 102 103 104 105 106 107 108 109
  unsigned block_size;
  uint8_t *iv;
};

static void
bench_cbc_encrypt(void *arg)
{
  struct bench_cbc_info *info = arg;
  unsigned i;

Niels Möller's avatar
Niels Möller committed
110
  for (i = 0; i<BENCH_COUNT; i++)
111 112
    cbc_encrypt(info->ctx, info->crypt,
		info->block_size, info->iv,
Niels Möller's avatar
Niels Möller committed
113
		BENCH_BLOCK, info->data, info->data);
114 115 116 117 118 119 120 121
}

static void
bench_cbc_decrypt(void *arg)
{
  struct bench_cbc_info *info = arg;
  unsigned i;

Niels Möller's avatar
Niels Möller committed
122
  for (i = 0; i<BENCH_COUNT; i++)
123 124
    cbc_decrypt(info->ctx, info->crypt,
		info->block_size, info->iv,
Niels Möller's avatar
Niels Möller committed
125
		BENCH_BLOCK, info->data, info->data);
126 127 128 129 130 131 132
}

/* Set data[i] = floor(sqrt(i)) */
static void
init_data(uint8_t *data)
{
  unsigned i,j;
Niels Möller's avatar
Niels Möller committed
133
  for (i = j = 0; i<BENCH_BLOCK;  i++)
134 135 136 137 138 139 140 141
    {
      if (j*j < i)
	j++;
      data[i] = j;
    }
}

static void
Niels Möller's avatar
Niels Möller committed
142 143
init_key(unsigned length,
         uint8_t *key)
144
{
Niels Möller's avatar
Niels Möller committed
145 146 147
  unsigned i;
  for (i = 0; i<length; i++)
    key[i] = i;
148 149
}

Niels Möller's avatar
Niels Möller committed
150 151 152 153 154 155 156 157 158
static void
display(const char *name, const char *mode,
	double elapsed)
{
  printf("%13s (%s): %.2fs, %.3fMB/s\n",
	 name, mode,
	 elapsed, BENCH_TOTAL / elapsed);
}

Niels Möller's avatar
Niels Möller committed
159
static void
160
time_cipher(const struct nettle_cipher *cipher)
Niels Möller's avatar
Niels Möller committed
161 162 163 164 165 166 167 168 169
{
  void *ctx = alloca(cipher->context_size);
  uint8_t *key = alloca(cipher->key_size);

  uint8_t data[BENCH_BLOCK];

  printf("\n");
  
  init_data(data);
170 171 172

  {
    struct bench_cipher_info info
Niels Möller's avatar
Niels Möller committed
173
      = { ctx, cipher->encrypt, data };
174
    
Niels Möller's avatar
Niels Möller committed
175
    init_key(cipher->key_size, key);
176
    cipher->set_encrypt_key(ctx, cipher->key_size, key);
Niels Möller's avatar
Niels Möller committed
177 178 179

    display(cipher->name, "ECB encrypt",
	    time_function(bench_cipher, &info));
180
  }
Niels Möller's avatar
Niels Möller committed
181
  
182 183
  {
    struct bench_cipher_info info
Niels Möller's avatar
Niels Möller committed
184
      = { ctx, cipher->decrypt, data };
185
    
Niels Möller's avatar
Niels Möller committed
186
    init_key(cipher->key_size, key);
187
    cipher->set_decrypt_key(ctx, cipher->key_size, key);
Niels Möller's avatar
Niels Möller committed
188 189 190

    display(cipher->name, "ECB decrypt",
	    time_function(bench_cipher, &info));
191 192
  }

Niels Möller's avatar
Niels Möller committed
193 194 195 196 197 198 199 200
  if (cipher->block_size)
    {
      uint8_t *iv = alloca(cipher->block_size);
      
      /* Do CBC mode */
      {
        struct bench_cbc_info info
          = { ctx, cipher->encrypt, data, cipher->block_size, iv };
201
    
Niels Möller's avatar
Niels Möller committed
202
        memset(iv, 0, sizeof(iv));
203
    
204
        cipher->set_encrypt_key(ctx, cipher->key_size, key);
205

Niels Möller's avatar
Niels Möller committed
206 207
	display(cipher->name, "CBC encrypt",
		time_function(bench_cbc_encrypt, &info));
Niels Möller's avatar
Niels Möller committed
208
      }
209

Niels Möller's avatar
Niels Möller committed
210 211 212
      {
        struct bench_cbc_info info
          = { ctx, cipher->decrypt, data, cipher->block_size, iv };
213
    
Niels Möller's avatar
Niels Möller committed
214
        memset(iv, 0, sizeof(iv));
215

216
        cipher->set_decrypt_key(ctx, cipher->key_size, key);
217

Niels Möller's avatar
Niels Möller committed
218 219
	display(cipher->name, "CBC decrypt",
		time_function(bench_cbc_decrypt, &info));
Niels Möller's avatar
Niels Möller committed
220 221 222 223 224 225 226 227
      }
    }
}


#define NCIPHERS 12

int
Niels Möller's avatar
Niels Möller committed
228
main(int argc UNUSED, char **argv UNUSED)
Niels Möller's avatar
Niels Möller committed
229 230
{
  unsigned i;
231
  const struct nettle_cipher *ciphers[NCIPHERS] =
Niels Möller's avatar
Niels Möller committed
232
    {
233 234 235 236 237 238 239
      &nettle_aes128, &nettle_aes192, &nettle_aes256,
      &nettle_arcfour128,
      &nettle_blowfish128,
      &nettle_cast128,
      &nettle_des, &nettle_des3,
      &nettle_serpent256,
      &nettle_twofish128, &nettle_twofish192, &nettle_twofish256,
Niels Möller's avatar
Niels Möller committed
240
    };
241

Niels Möller's avatar
Niels Möller committed
242
  for (i = 0; i<NCIPHERS; i++)
243
    time_cipher(ciphers[i]);
Niels Möller's avatar
Niels Möller committed
244
  
245 246
  return 0;
}