speed.c

IP网络语音通讯软件源代码. 不可多得的语音源代码

/* lib/des/speed.c */
/* Copyright (C) 1995 Eric Young ([e-mail])
 * All rights reserved.
 * 
 * This file is part of an SSL implementation written
 * by Eric Young ([e-mail]).
 * The implementation was written so as to conform with Netscapes SSL
 * specification.  This library and applications are
 * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
 * as long as the following conditions are aheared to.
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.	If this code is used in a product,
 * Eric Young should be given attribution as the author of the parts 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 software developed by Eric Young ([e-mail])
 * 
 * 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.]
 */

/* 11-Sep-92 Andrew Daviel	 Support for Silicon Graphics IRIX added */
/* 06-Apr-92 Luke Brennan	 Support for VMS and add extra signal calls */

#ifndef MSDOS
#define TIMES
#endif

#include <stdio.h>
#ifndef MSDOS
#include <unistd.h>
#else
#include <io.h>
#endif
#include <signal.h>
#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 "des.h"

/* The following if from times(3) man page.  It may need to be changed */
#ifndef HZ
#ifndef CLK_TCK
#ifndef VMS
#define HZ		100.0
#else /* VMS */
#define HZ		100.0
#endif
#else /* CLK_TCK */
#define HZ ((double)CLK_TCK)
#endif
#endif

#define BUFSIZE ((long)1024*8)
long run=0;

#ifdef PROTO
double Time_F(int s);
#else
double Time_F();
#endif

#ifdef SIGALRM
#if defined(__STDC__) || defined(sgi)
#define SIGRETTYPE void
#else
#define SIGRETTYPE int
#endif

#ifdef PROTO
SIGRETTYPE sig_done(int sig);
#else
SIGRETTYPE sig_done();
#endif

SIGRETTYPE sig_done(sig)
int sig;
		{
		signal(SIGALRM,sig_done);
		run=0;
#ifdef LINT
		sig=sig;
#endif
		}
#endif

#define START	0
#define STOP	1

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 == 0.0)?1e-6: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 == 0.0)?1e-6:ret);
				}
#endif
		}

int main(argc,argv)
int argc;
char **argv;
		{
		long count;
		static unsigned char buf[BUFSIZE];
		static des_cblock key ={0x12,0x34,0x56,0x78,0x9a,0xbc,0xde,0xf0};
		static des_cblock key2={0x34,0x56,0x78,0x9a,0xbc,0xde,0xf0,0x12};
		static des_cblock key3={0x56,0x78,0x9a,0xbc,0xde,0xf0,0x12,0x34};
		des_key_schedule sch,sch2,sch3;
		double a,b,c,d,e;
#ifndef SIGALARM
		long ca,cb,cc,cd,ce;
#endif

#ifndef TIMES
        printf("To get the most acurate results, try to run this\n");
        printf("program when this computer is idle.\n");
#endif

		des_set_key((C_Block *)key2,sch2);
		des_set_key((C_Block *)key3,sch3);

#ifndef SIGALRM
        printf("First we calculate the aproximate speed ...\n");
		des_set_key((C_Block *)key,sch);
		count=10;
		do		{
				long i;

				count*=2;
				Time_F(START);
				for (i=count; i; i--)
						des_ecb_encrypt((C_Block *)buf,(C_Block *)buf,
								&(sch[0]),DES_ENCRYPT);
				d=Time_F(STOP);
				} while (d < 3.0);
		ca=count;
		cb=count*3;
		cc=count*3*8/BUFSIZE+1;
		cd=count*8/BUFSIZE+1;
		ce=count/20+1;
        printf("Doing set_key %ld times\n",ca);
#define COND(d) (count != (d))
#define COUNT(d) (d)
#else
#define COND(c) (run)
#define COUNT(d) (count)
		signal(SIGALRM,sig_done);
        printf("Doing set_key for 10 seconds\n");
		alarm(10);
#endif

		Time_F(START);
		for (count=0,run=1; COND(ca); count++)
				des_set_key((C_Block *)key,sch);
		d=Time_F(STOP);
        printf("%ld set_key's in %.2f seconds\n",count,d);
		a=((double)COUNT(ca))/d;

#ifdef SIGALRM
        printf("Doing des_ecb_encrypt's for 10 seconds\n");
		alarm(10);
#else
        printf("Doing des_ecb_encrypt %ld times\n",cb);
#endif
		Time_F(START);
		for (count=0,run=1; COND(cb); count++)
				des_ecb_encrypt((C_Block *)buf,(C_Block *)buf,
						&(sch[0]),DES_ENCRYPT);
		d=Time_F(STOP);
        printf("%ld des_ecb_encrypt's in %.2f second\n",count,d);
		b=((double)COUNT(cb)*8)/d;

#ifdef SIGALRM
        printf("Doing des_cbc_encrypt on %ld byte blocks for 10 seconds\n",
				BUFSIZE);
		alarm(10);
#else
        printf("Doing des_cbc_encrypt %ld times on %ld byte blocks\n",cc,
				BUFSIZE);
#endif
		Time_F(START);
		for (count=0,run=1; COND(cc); count++)
				des_cbc_encrypt((C_Block *)buf,(C_Block *)buf,BUFSIZE,&(sch[0]),
						(C_Block *)&(key[0]),DES_ENCRYPT);
		d=Time_F(STOP);
        printf("%ld des_cbc_encrypt's of %ld byte blocks in %.2f second\n",
				count,BUFSIZE,d);
		c=((double)COUNT(cc)*BUFSIZE)/d;

#ifdef SIGALRM
        printf("Doing des_ede_cbc_encrypt on %ld byte blocks for 10 seconds\n",
				BUFSIZE);
		alarm(10);
#else
        printf("Doing des_ede_cbc_encrypt %ld times on %ld byte blocks\n",cd,
				BUFSIZE);
#endif
		Time_F(START);
		for (count=0,run=1; COND(cd); count++)
				des_ede3_cbc_encrypt((C_Block *)buf,(C_Block *)buf,BUFSIZE,
						&(sch[0]),
						&(sch2[0]),
						&(sch3[0]),
						(C_Block *)&(key[0]),
						DES_ENCRYPT);
		d=Time_F(STOP);
        printf("%ld des_ede_cbc_encrypt's of %ld byte blocks in %.2f second\n",
				count,BUFSIZE,d);
		d=((double)COUNT(cd)*BUFSIZE)/d;

#ifdef SIGALRM
        printf("Doing crypt for 10 seconds\n");
		alarm(10);
#else
        printf("Doing crypt %ld times\n",ce);
#endif
		Time_F(START);
		for (count=0,run=1; COND(ce); count++)
                crypt("testing1","ef");
		e=Time_F(STOP);
        printf("%ld crypts in %.2f second\n",count,e);
		e=((double)COUNT(ce))/e;

        printf("set_key            per sec = %12.2f (%5.1fuS)\n",a,1.0e6/a);
        printf("DES ecb bytes      per sec = %12.2f (%5.1fuS)\n",b,8.0e6/b);
        printf("DES cbc bytes      per sec = %12.2f (%5.1fuS)\n",c,8.0e6/c);
        printf("DES ede cbc bytes  per sec = %12.2f (%5.1fuS)\n",d,8.0e6/d);
        printf("crypt              per sec = %12.2f (%5.1fuS)\n",e,1.0e6/e);
		exit(0);
#ifdef LINT
		return(0);
#endif
		}