230 lines
6 KiB
C
230 lines
6 KiB
C
/* crypto/bn/expspeed.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/* most of this code has been pilfered from my libdes speed.c program */
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#define BASENUM 5000
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#undef PROG
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#define PROG bnspeed_main
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#include <stdio.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <string.h>
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#include "crypto.h"
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#include "err.h"
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#ifndef MSDOS
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#define TIMES
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#endif
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#ifndef VMS
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#ifndef _IRIX
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#include <time.h>
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#endif
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#ifdef TIMES
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#include <sys/types.h>
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#include <sys/times.h>
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#endif
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#else /* VMS */
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#include <types.h>
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struct tms {
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time_t tms_utime;
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time_t tms_stime;
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time_t tms_uchild; /* I dunno... */
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time_t tms_uchildsys; /* so these names are a guess :-) */
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}
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#endif
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#ifndef TIMES
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#include <sys/timeb.h>
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#endif
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#ifdef sun
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#include <limits.h>
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#include <sys/param.h>
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#endif
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#include "bn.h"
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#include "x509.h"
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/* The following if from times(3) man page. It may need to be changed */
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#ifndef HZ
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# ifndef CLK_TCK
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# ifndef _BSD_CLK_TCK_ /* FreeBSD hack */
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# ifndef VMS
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# define HZ 100.0
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# else /* VMS */
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# define HZ 100.0
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# endif
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# else /* _BSD_CLK_TCK_ */
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# define HZ ((double)_BSD_CLK_TCK_)
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# endif
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# else /* CLK_TCK */
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# define HZ ((double)CLK_TCK)
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# endif
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#endif
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#undef BUFSIZE
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#define BUFSIZE ((long)1024*8)
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int run=0;
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#ifndef NOPROTO
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static double Time_F(int s);
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#else
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static double Time_F();
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#endif
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#define START 0
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#define STOP 1
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static double Time_F(s)
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int s;
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{
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double ret;
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#ifdef TIMES
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static struct tms tstart,tend;
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if (s == START)
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{
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times(&tstart);
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return(0);
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}
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else
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{
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times(&tend);
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ret=((double)(tend.tms_utime-tstart.tms_utime))/HZ;
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return((ret < 1e-3)?1e-3:ret);
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}
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#else /* !times() */
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static struct timeb tstart,tend;
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long i;
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if (s == START)
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{
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ftime(&tstart);
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return(0);
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}
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else
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{
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ftime(&tend);
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i=(long)tend.millitm-(long)tstart.millitm;
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ret=((double)(tend.time-tstart.time))+((double)i)/1000.0;
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return((ret < 0.001)?0.001:ret);
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}
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#endif
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}
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#define NUM_SIZES 6
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static int sizes[NUM_SIZES]={256,512,1024,2048,4096,8192};
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static int mul_c[NUM_SIZES]={8*8*8*8*8,8*8*8*8,8*8*8,8*8,8,1};
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/*static int sizes[NUM_SIZES]={59,179,299,419,539}; */
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void do_mul_exp(BIGNUM *r,BIGNUM *a,BIGNUM *b,BIGNUM *c,BN_CTX *ctx);
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int main(argc,argv)
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int argc;
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char **argv;
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{
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BN_CTX *ctx;
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BIGNUM *a,*b,*c,*r;
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ctx=BN_CTX_new();
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a=BN_new();
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b=BN_new();
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c=BN_new();
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r=BN_new();
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do_mul_exp(r,a,b,c,ctx);
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}
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void do_mul_exp(r,a,b,c,ctx)
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BIGNUM *r;
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BIGNUM *a;
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BIGNUM *b;
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BIGNUM *c;
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BN_CTX *ctx;
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{
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int i,k;
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double tm;
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long num;
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BN_MONT_CTX m;
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memset(&m,0,sizeof(m));
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num=BASENUM;
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for (i=0; i<NUM_SIZES; i++)
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{
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BN_rand(a,sizes[i],1,0);
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BN_rand(b,sizes[i],1,0);
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BN_rand(c,sizes[i],1,1);
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BN_mod(a,a,c,ctx);
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BN_mod(b,b,c,ctx);
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BN_MONT_CTX_set(&m,c,ctx);
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Time_F(START);
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for (k=0; k<num; k++)
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BN_mod_exp_mont(r,a,b,c,ctx,&m);
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tm=Time_F(STOP);
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printf("mul %4d ^ %4d %% %d -> %8.3fms %5.1f\n",sizes[i],sizes[i],sizes[i],tm*1000.0/num,tm*mul_c[i]/num);
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num/=7;
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if (num <= 0) num=1;
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}
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}
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