ref: c23504631008ce0bfaa5bec48acb2b04f4b49fd9
dir: /sys/src/ape/lib/openssl/crypto/bn/bnspeed.c/
/* unused */
/* crypto/bn/bnspeed.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 1000000
#undef PROG
#define PROG bnspeed_main
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#if !defined(OPENSSL_SYS_MSDOS) && (!defined(OPENSSL_SYS_VMS) || defined(__DECC)) && !defined(OPENSSL_SYS_MACOSX)
#define TIMES
#endif
#ifndef _IRIX
#include <time.h>
#endif
#ifdef TIMES
#include <sys/types.h>
#include <sys/times.h>
#endif
/* Depending on the VMS version, the tms structure is perhaps defined.
The __TMS macro will show if it was. If it wasn't defined, we should
undefine TIMES, since that tells the rest of the program how things
should be handled. -- Richard Levitte */
#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__TMS)
#undef TIMES
#endif
#ifndef TIMES
#include <sys/timeb.h>
#endif
#if defined(sun) || defined(__ultrix)
#define _POSIX_SOURCE
#include <limits.h>
#include <sys/param.h>
#endif
#include <openssl/bn.h>
#include <openssl/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 */
# define HZ 100.0
# 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;
static double Time_F(int s);
#define START 0
#define STOP 1
static double Time_F(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 5
static int sizes[NUM_SIZES]={128,256,512,1024,2048};
/*static int sizes[NUM_SIZES]={59,179,299,419,539}; */
void do_mul(BIGNUM *r,BIGNUM *a,BIGNUM *b,BN_CTX *ctx);
int main(int argc, char **argv)
{
BN_CTX *ctx;
BIGNUM a,b,c;
ctx=BN_CTX_new();
BN_init(&a);
BN_init(&b);
BN_init(&c);
do_mul(&a,&b,&c,ctx);
}
void do_mul(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_CTX *ctx)
{
int i,j,k;
double tm;
long num;
for (i=0; i<NUM_SIZES; i++)
{
num=BASENUM;
if (i) num/=(i*3);
BN_rand(a,sizes[i],1,0);
for (j=i; j<NUM_SIZES; j++)
{
BN_rand(b,sizes[j],1,0);
Time_F(START);
for (k=0; k<num; k++)
BN_mul(r,b,a,ctx);
tm=Time_F(STOP);
printf("mul %4d x %4d -> %8.3fms\n",sizes[i],sizes[j],tm*1000.0/num);
}
}
for (i=0; i<NUM_SIZES; i++)
{
num=BASENUM;
if (i) num/=(i*3);
BN_rand(a,sizes[i],1,0);
Time_F(START);
for (k=0; k<num; k++)
BN_sqr(r,a,ctx);
tm=Time_F(STOP);
printf("sqr %4d x %4d -> %8.3fms\n",sizes[i],sizes[i],tm*1000.0/num);
}
for (i=0; i<NUM_SIZES; i++)
{
num=BASENUM/10;
if (i) num/=(i*3);
BN_rand(a,sizes[i]-1,1,0);
for (j=i; j<NUM_SIZES; j++)
{
BN_rand(b,sizes[j],1,0);
Time_F(START);
for (k=0; k<100000; k++)
BN_div(r, NULL, b, a,ctx);
tm=Time_F(STOP);
printf("div %4d / %4d -> %8.3fms\n",sizes[j],sizes[i]-1,tm*1000.0/num);
}
}
}