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godot/drivers/builtin_openssl2/crypto/rc2/rc2speed.c

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/* crypto/rc2/rc2speed.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.]
*/
/* 11-Sep-92 Andrew Daviel Support for Silicon Graphics IRIX added */
/* 06-Apr-92 Luke Brennan Support for VMS and add extra signal calls */
#if !defined(OPENSSL_SYS_MSDOS) && (!defined(OPENSSL_SYS_VMS) || defined(__DECC)) && !defined(OPENSSL_SYS_MACOSX)
# define TIMES
#endif
#include <stdio.h>
#include <openssl/e_os2.h>
#include OPENSSL_UNISTD_IO
OPENSSL_DECLARE_EXIT
#ifndef OPENSSL_SYS_NETWARE
# include <signal.h>
#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/rc2.h>
/* The following if from times(3) man page. It may need to be changed */
#ifndef HZ
# ifndef CLK_TCK
# define HZ 100.0
# else /* CLK_TCK */
# define HZ ((double)CLK_TCK)
# endif /* CLK_TCK */
#endif /* HZ */
#define BUFSIZE ((long)1024)
long run = 0;
double Time_F(int s);
#ifdef SIGALRM
# if defined(__STDC__) || defined(sgi) || defined(_AIX)
# define SIGRETTYPE void
# else
# define SIGRETTYPE int
# endif
SIGRETTYPE sig_done(int sig);
SIGRETTYPE sig_done(int sig)
{
signal(SIGALRM, sig_done);
run = 0;
# ifdef LINT
sig = sig;
# endif
}
#endif
#define START 0
#define STOP 1
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 == 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(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,
};
RC2_KEY sch;
double a, b, c, d;
#ifndef SIGALRM
long ca, cb, cc;
#endif
#ifndef TIMES
printf("To get the most accurate 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");
RC2_set_key(&sch, 16, key, 128);
count = 10;
do {
long i;
unsigned long data[2];
count *= 2;
Time_F(START);
for (i = count; i; i--)
RC2_encrypt(data, &sch);
d = Time_F(STOP);
} while (d < 3.0);
ca = count / 512;
cb = count;
cc = count * 8 / BUFSIZE + 1;
printf("Doing RC2_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 RC2_set_key for 10 seconds\n");
alarm(10);
#endif
Time_F(START);
for (count = 0, run = 1; COND(ca); count += 4) {
RC2_set_key(&sch, 16, key, 128);
RC2_set_key(&sch, 16, key, 128);
RC2_set_key(&sch, 16, key, 128);
RC2_set_key(&sch, 16, key, 128);
}
d = Time_F(STOP);
printf("%ld RC2_set_key's in %.2f seconds\n", count, d);
a = ((double)COUNT(ca)) / d;
#ifdef SIGALRM
printf("Doing RC2_encrypt's for 10 seconds\n");
alarm(10);
#else
printf("Doing RC2_encrypt %ld times\n", cb);
#endif
Time_F(START);
for (count = 0, run = 1; COND(cb); count += 4) {
unsigned long data[2];
RC2_encrypt(data, &sch);
RC2_encrypt(data, &sch);
RC2_encrypt(data, &sch);
RC2_encrypt(data, &sch);
}
d = Time_F(STOP);
printf("%ld RC2_encrypt's in %.2f second\n", count, d);
b = ((double)COUNT(cb) * 8) / d;
#ifdef SIGALRM
printf("Doing RC2_cbc_encrypt on %ld byte blocks for 10 seconds\n",
BUFSIZE);
alarm(10);
#else
printf("Doing RC2_cbc_encrypt %ld times on %ld byte blocks\n", cc,
BUFSIZE);
#endif
Time_F(START);
for (count = 0, run = 1; COND(cc); count++)
RC2_cbc_encrypt(buf, buf, BUFSIZE, &sch, &(key[0]), RC2_ENCRYPT);
d = Time_F(STOP);
printf("%ld RC2_cbc_encrypt's of %ld byte blocks in %.2f second\n",
count, BUFSIZE, d);
c = ((double)COUNT(cc) * BUFSIZE) / d;
printf("RC2 set_key per sec = %12.2f (%9.3fuS)\n", a, 1.0e6 / a);
printf("RC2 raw ecb bytes per sec = %12.2f (%9.3fuS)\n", b, 8.0e6 / b);
printf("RC2 cbc bytes per sec = %12.2f (%9.3fuS)\n", c, 8.0e6 / c);
exit(0);
#if defined(LINT) || defined(OPENSSL_SYS_MSDOS)
return (0);
#endif
}
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