bnspeed.c revision 296465 
1/* unused */
2
3/* crypto/bn/bnspeed.c */
4/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * All rights reserved.
6 *
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.
10 *
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).
17 *
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.
24 *
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
27 * are met:
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)"
42 *
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
53 * SUCH DAMAGE.
54 *
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.]
59 */
60
61/* most of this code has been pilfered from my libdes speed.c program */
62
63#define BASENUM 1000000
64#undef PROG
65#define PROG bnspeed_main
66
67#include <stdio.h>
68#include <stdlib.h>
69#include <signal.h>
70#include <string.h>
71#include <openssl/crypto.h>
72#include <openssl/err.h>
73
74#if !defined(OPENSSL_SYS_MSDOS) && (!defined(OPENSSL_SYS_VMS) || defined(__DECC)) && !defined(OPENSSL_SYS_MACOSX)
75# define TIMES
76#endif
77
78#ifndef _IRIX
79# include <time.h>
80#endif
81#ifdef TIMES
82# include <sys/types.h>
83# include <sys/times.h>
84#endif
85
86/*
87 * Depending on the VMS version, the tms structure is perhaps defined. The
88 * __TMS macro will show if it was.  If it wasn't defined, we should undefine
89 * TIMES, since that tells the rest of the program how things should be
90 * handled.  -- Richard Levitte
91 */
92#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__TMS)
93# undef TIMES
94#endif
95
96#ifndef TIMES
97# include <sys/timeb.h>
98#endif
99
100#if defined(sun) || defined(__ultrix)
101# define _POSIX_SOURCE
102# include <limits.h>
103# include <sys/param.h>
104#endif
105
106#include <openssl/bn.h>
107#include <openssl/x509.h>
108
109/* The following if from times(3) man page.  It may need to be changed */
110#ifndef HZ
111# ifndef CLK_TCK
112#  ifndef _BSD_CLK_TCK_         /* FreeBSD hack */
113#   define HZ   100.0
114#  else                         /* _BSD_CLK_TCK_ */
115#   define HZ ((double)_BSD_CLK_TCK_)
116#  endif
117# else                          /* CLK_TCK */
118#  define HZ ((double)CLK_TCK)
119# endif
120#endif
121
122#undef BUFSIZE
123#define BUFSIZE ((long)1024*8)
124int run = 0;
125
126static double Time_F(int s);
127#define START   0
128#define STOP    1
129
130static double Time_F(int s)
131{
132    double ret;
133#ifdef TIMES
134    static struct tms tstart, tend;
135
136    if (s == START) {
137        times(&tstart);
138        return (0);
139    } else {
140        times(&tend);
141        ret = ((double)(tend.tms_utime - tstart.tms_utime)) / HZ;
142        return ((ret < 1e-3) ? 1e-3 : ret);
143    }
144#else                           /* !times() */
145    static struct timeb tstart, tend;
146    long i;
147
148    if (s == START) {
149        ftime(&tstart);
150        return (0);
151    } else {
152        ftime(&tend);
153        i = (long)tend.millitm - (long)tstart.millitm;
154        ret = ((double)(tend.time - tstart.time)) + ((double)i) / 1000.0;
155        return ((ret < 0.001) ? 0.001 : ret);
156    }
157#endif
158}
159
160#define NUM_SIZES       5
161static int sizes[NUM_SIZES] = { 128, 256, 512, 1024, 2048 };
162
163/*
164 * static int sizes[NUM_SIZES]={59,179,299,419,539};
165 */
166
167void do_mul(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_CTX *ctx);
168
169int main(int argc, char **argv)
170{
171    BN_CTX *ctx;
172    BIGNUM a, b, c;
173
174    ctx = BN_CTX_new();
175    BN_init(&a);
176    BN_init(&b);
177    BN_init(&c);
178
179    do_mul(&a, &b, &c, ctx);
180}
181
182void do_mul(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_CTX *ctx)
183{
184    int i, j, k;
185    double tm;
186    long num;
187
188    for (i = 0; i < NUM_SIZES; i++) {
189        num = BASENUM;
190        if (i)
191            num /= (i * 3);
192        BN_rand(a, sizes[i], 1, 0);
193        for (j = i; j < NUM_SIZES; j++) {
194            BN_rand(b, sizes[j], 1, 0);
195            Time_F(START);
196            for (k = 0; k < num; k++)
197                BN_mul(r, b, a, ctx);
198            tm = Time_F(STOP);
199            printf("mul %4d x %4d -> %8.3fms\n", sizes[i], sizes[j],
200                   tm * 1000.0 / num);
201        }
202    }
203
204    for (i = 0; i < NUM_SIZES; i++) {
205        num = BASENUM;
206        if (i)
207            num /= (i * 3);
208        BN_rand(a, sizes[i], 1, 0);
209        Time_F(START);
210        for (k = 0; k < num; k++)
211            BN_sqr(r, a, ctx);
212        tm = Time_F(STOP);
213        printf("sqr %4d x %4d -> %8.3fms\n", sizes[i], sizes[i],
214               tm * 1000.0 / num);
215    }
216
217    for (i = 0; i < NUM_SIZES; i++) {
218        num = BASENUM / 10;
219        if (i)
220            num /= (i * 3);
221        BN_rand(a, sizes[i] - 1, 1, 0);
222        for (j = i; j < NUM_SIZES; j++) {
223            BN_rand(b, sizes[j], 1, 0);
224            Time_F(START);
225            for (k = 0; k < 100000; k++)
226                BN_div(r, NULL, b, a, ctx);
227            tm = Time_F(STOP);
228            printf("div %4d / %4d -> %8.3fms\n", sizes[j], sizes[i] - 1,
229                   tm * 1000.0 / num);
230        }
231    }
232}
233