/* 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);

 			}

 		}

 	}