bfspeed.c

IP网络语音通讯软件源代码. 不可多得的语音源代码

/* crypto/bf/bfspeed.c */
/* Copyright (C) 1995-1997 Eric Young ([e-mail])
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young ([e-mail]).
 * 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 ([e-mail]).
 * 
 * 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 ([e-mail])"
 *    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 ([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>
extern int exit();
#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 "blowfish.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)
long run=0;

#ifndef NOPROTO
double Time_F(int s);
#else
double Time_F();
#endif

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

#ifndef NOPROTO
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)/1e3;
                return((ret == 0.0)?1e-6:ret);
                }
#endif
        }

int main(argc,argv)
int argc;
char **argv;
        {
        long count;
        static unsigned char buf[BUFSIZE];
        static unsigned char key[] ={
                        0x12,0x34,0x56,0x78,0x9a,0xbc,0xde,0xf0,
                        0xfe,0xdc,0xba,0x98,0x76,0x54,0x32,0x10,
                        };
        BF_KEY sch;
        double a,b,c,d;
#ifndef SIGALRM
        long ca,cb,cc;
#endif

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

#ifndef SIGALRM
        printf("First we calculate the approximate speed ...\n");
        BF_set_key(&sch,16,key);
        count=10;
        do      {
                long i;
                BF_LONG data[2];

                count*=2;
                Time_F(START);
                for (i=count; i; i--)
                        BF_encrypt(data,&sch,BF_ENCRYPT);
                d=Time_F(STOP);
                } while (d < 3.0);
        ca=count/512;
        cb=count;
        cc=count*8/BUFSIZE+1;
        printf("Doing BF_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 BF_set_key for 10 seconds\n");
        alarm(10);
#endif

        Time_F(START);
        for (count=0,run=1; COND(ca); count++)
                BF_set_key(&sch,16,key);
        d=Time_F(STOP);
        printf("%ld blowfish set_key's in %.2f seconds\n",count,d);
        a=((double)COUNT(ca))/d;

#ifdef SIGALRM
        printf("Doing BF_encrypt's for 10 seconds\n");
        alarm(10);
#else
        printf("Doing BF_encrypt %ld times\n",cb);
#endif
        Time_F(START);
        for (count=0,run=1; COND(cb); count++)
                {
                BF_LONG data[2];

                BF_encrypt(data,&sch,BF_ENCRYPT);
                }
        d=Time_F(STOP);
        printf("%ld BF_encrypt's in %.2f second\n",count,d);
        b=((double)COUNT(cb)*8)/d;

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

        printf("blowfish set_key       per sec = %12.2f (%7.1fuS)\n",a,1.0e6/a);
        printf("Blowfish raw ecb bytes per sec = %12.2f (%7.1fuS)\n",b,8.0e6/b);
        printf("Blowfish cbc     bytes per sec = %12.2f (%7.1fuS)\n",c,8.0e6/c);
        exit(0);
#if defined(LINT) || defined(MSDOS)
        return(0);
#endif
        }