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Diffstat (limited to 'crypto/bn/expspeed.c')
| -rw-r--r-- | crypto/bn/expspeed.c | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/crypto/bn/expspeed.c b/crypto/bn/expspeed.c new file mode 100644 index 0000000000..344f883d35 --- /dev/null +++ b/crypto/bn/expspeed.c @@ -0,0 +1,230 @@ +/* crypto/bn/expspeed.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +/* most of this code has been pilfered from my libdes speed.c program */ + +#define BASENUM 5000 +#undef PROG +#define PROG bnspeed_main + +#include <stdio.h> +#include <stdlib.h> +#include <signal.h> +#include <string.h> +#include "crypto.h" +#include "err.h" + +#ifndef MSDOS +#define TIMES +#endif + +#ifndef VMS +#ifndef _IRIX +#include <time.h> +#endif +#ifdef TIMES +#include <sys/types.h> +#include <sys/times.h> +#endif +#else /* VMS */ +#include <types.h> +struct tms { + time_t tms_utime; + time_t tms_stime; + time_t tms_uchild; /* I dunno... */ + time_t tms_uchildsys; /* so these names are a guess :-) */ + } +#endif +#ifndef TIMES +#include <sys/timeb.h> +#endif + +#ifdef sun +#include <limits.h> +#include <sys/param.h> +#endif + +#include "bn.h" +#include "x509.h" + +/* The following if from times(3) man page. It may need to be changed */ +#ifndef HZ +# ifndef CLK_TCK +# ifndef _BSD_CLK_TCK_ /* FreeBSD hack */ +# ifndef VMS +# define HZ 100.0 +# else /* VMS */ +# define HZ 100.0 +# endif +# else /* _BSD_CLK_TCK_ */ +# define HZ ((double)_BSD_CLK_TCK_) +# endif +# else /* CLK_TCK */ +# define HZ ((double)CLK_TCK) +# endif +#endif + +#undef BUFSIZE +#define BUFSIZE ((long)1024*8) +int run=0; + +#ifndef NOPROTO +static double Time_F(int s); +#else +static double Time_F(); +#endif + +#define START 0 +#define STOP 1 + +static double Time_F(s) +int s; + { + double ret; +#ifdef TIMES + static struct tms tstart,tend; + + if (s == START) + { + times(&tstart); + return(0); + } + else + { + times(&tend); + ret=((double)(tend.tms_utime-tstart.tms_utime))/HZ; + return((ret < 1e-3)?1e-3:ret); + } +#else /* !times() */ + static struct timeb tstart,tend; + long i; + + if (s == START) + { + ftime(&tstart); + return(0); + } + else + { + ftime(&tend); + i=(long)tend.millitm-(long)tstart.millitm; + ret=((double)(tend.time-tstart.time))+((double)i)/1000.0; + return((ret < 0.001)?0.001:ret); + } +#endif + } + +#define NUM_SIZES 6 +static int sizes[NUM_SIZES]={256,512,1024,2048,4096,8192}; +static int mul_c[NUM_SIZES]={8*8*8*8*8,8*8*8*8,8*8*8,8*8,8,1}; +/*static int sizes[NUM_SIZES]={59,179,299,419,539}; */ + +void do_mul_exp(BIGNUM *r,BIGNUM *a,BIGNUM *b,BIGNUM *c,BN_CTX *ctx); + +int main(argc,argv) +int argc; +char **argv; + { + BN_CTX *ctx; + BIGNUM *a,*b,*c,*r; + + ctx=BN_CTX_new(); + a=BN_new(); + b=BN_new(); + c=BN_new(); + r=BN_new(); + + do_mul_exp(r,a,b,c,ctx); + } + +void do_mul_exp(r,a,b,c,ctx) +BIGNUM *r; +BIGNUM *a; +BIGNUM *b; +BIGNUM *c; +BN_CTX *ctx; + { + int i,k; + double tm; + long num; + BN_MONT_CTX m; + + memset(&m,0,sizeof(m)); + + num=BASENUM; + for (i=0; i<NUM_SIZES; i++) + { + BN_rand(a,sizes[i],1,0); + BN_rand(b,sizes[i],1,0); + BN_rand(c,sizes[i],1,1); + BN_mod(a,a,c,ctx); + BN_mod(b,b,c,ctx); + + BN_MONT_CTX_set(&m,c,ctx); + + Time_F(START); + for (k=0; k<num; k++) + BN_mod_exp_mont(r,a,b,c,ctx,&m); + tm=Time_F(STOP); + 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); + num/=7; + if (num <= 0) num=1; + } + + } + |