3 /* crypto/bn/expspeed.c */
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
61 /* most of this code has been pilfered from my libdes speed.c program */
67 /* determine timings for modexp, gcd, or modular inverse */
75 #define PROG bnspeed_main
81 #include <openssl/crypto.h>
82 #include <openssl/err.h>
84 #if !defined(MSDOS) && (!defined(VMS) || defined(__DECC))
92 #include <sys/types.h>
93 #include <sys/times.h>
96 /* Depending on the VMS version, the tms structure is perhaps defined.
97 The __TMS macro will show if it was. If it wasn't defined, we should
98 undefine TIMES, since that tells the rest of the program how things
99 should be handled. -- Richard Levitte */
100 #if defined(VMS) && defined(__DECC) && !defined(__TMS)
105 #include <sys/timeb.h>
108 #if defined(sun) || defined(__ultrix)
109 #define _POSIX_SOURCE
111 #include <sys/param.h>
114 #include <openssl/bn.h>
115 #include <openssl/x509.h>
117 /* The following if from times(3) man page. It may need to be changed */
120 # ifndef _BSD_CLK_TCK_ /* FreeBSD hack */
122 # else /* _BSD_CLK_TCK_ */
123 # define HZ ((double)_BSD_CLK_TCK_)
126 # define HZ ((double)CLK_TCK)
131 #define BUFSIZE ((long)1024*8)
134 static double Time_F(int s);
138 static double Time_F(int s)
142 static struct tms tstart,tend;
152 ret=((double)(tend.tms_utime-tstart.tms_utime))/HZ;
153 return((ret < 1e-3)?1e-3:ret);
156 static struct timeb tstart,tend;
167 i=(long)tend.millitm-(long)tstart.millitm;
168 ret=((double)(tend.time-tstart.time))+((double)i)/1000.0;
169 return((ret < 0.001)?0.001:ret);
175 #if NUM_START > NUM_SIZES
176 # error "NUM_START > NUM_SIZES"
178 static int sizes[NUM_SIZES]={128,256,512,1024,2048,4096,8192};
179 static int mul_c[NUM_SIZES]={8*8*8*8*8*8,8*8*8*8*8,8*8*8*8,8*8*8,8*8,8,1};
180 /*static int sizes[NUM_SIZES]={59,179,299,419,539}; */
182 #define RAND_SEED(string) { const char str[] = string; RAND_seed(string, sizeof string); }
184 static void genprime_cb(int p, int n, void *arg)
198 void do_mul_exp(BIGNUM *r,BIGNUM *a,BIGNUM *b,BIGNUM *c,BN_CTX *ctx);
200 int main(int argc, char **argv)
211 while (!RAND_status())
212 /* not enough bits */
213 RAND_SEED("I demand a manual recount!");
215 do_mul_exp(r,a,b,c,ctx);
218 void do_mul_exp(BIGNUM *r, BIGNUM *a, BIGNUM *b, BIGNUM *c, BN_CTX *ctx)
224 #if defined(TEST_EXP) + defined(TEST_GCD) + defined(TEST_KRON) + defined(TEST_INV) != 1
225 # error "choose one test"
233 for (i=NUM_START; i<NUM_SIZES; i++)
236 if (!BN_generate_prime(c,sizes[i],0,NULL,NULL,genprime_cb,NULL)) goto err;
242 for (k=0; k<num; k++)
244 if (k%50 == 0) /* Average over num/50 different choices of random numbers. */
246 if (!BN_pseudo_rand(a,sizes[i],1,0)) goto err;
247 if (!BN_pseudo_rand(b,sizes[i],1,0)) goto err;
249 if (!BN_pseudo_rand(c,sizes[i],1,1)) goto err;
252 #if defined(TEST_EXP)
253 if (!BN_mod_exp(r,a,b,c,ctx)) goto err;
254 #elif defined(TEST_GCD)
255 if (!BN_gcd(r,a,b,ctx)) goto err;
256 if (!BN_gcd(r,b,c,ctx)) goto err;
257 if (!BN_gcd(r,c,a,ctx)) goto err;
258 #elif defined(TEST_KRON)
259 if (-2 == BN_kronecker(a,b,ctx)) goto err;
260 if (-2 == BN_kronecker(b,c,ctx)) goto err;
261 if (-2 == BN_kronecker(c,a,ctx)) goto err;
263 if (!BN_mod_inverse(r,a,c,ctx)) goto err;
264 if (!BN_mod_inverse(r,b,c,ctx)) goto err;
269 #if defined(TEST_EXP)
270 "modexp %4d ^ %4d %% %4d"
271 #elif defined(TEST_GCD)
273 #elif defined(TEST_KRON)
274 "3*kronecker %4d %4d %4d"
276 "2*inv %4d %4d mod %4d"
278 " -> %8.3fms %5.1f (%d)\n",sizes[i],sizes[i],sizes[i],tm*1000.0/num,tm*mul_c[i]/num, num);
285 ERR_print_errors_fp(stderr);