ref: dc96f164a2b72ccb209ae98ce50a11087cbe44f8
dir: /sys/src/ape/lib/openssl/crypto/bn/expspeed.c/
/* unused */
/* crypto/bn/expspeed.c */
/* Copyright (C) 1995-1998 Eric Young ([email protected])
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young ([email protected]).
* 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 ([email protected]).
*
* 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 ([email protected])"
* 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 ([email protected])"
*
* 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 5000
#define NUM_START 0
/* determine timings for modexp, modmul, modsqr, gcd, Kronecker symbol,
* modular inverse, or modular square roots */
#define TEST_EXP
#undef TEST_MUL
#undef TEST_SQR
#undef TEST_GCD
#undef TEST_KRON
#undef TEST_INV
#undef TEST_SQRT
#define P_MOD_64 9 /* least significant 6 bits for prime to be used for BN_sqrt timings */
#if defined(TEST_EXP) + defined(TEST_MUL) + defined(TEST_SQR) + defined(TEST_GCD) + defined(TEST_KRON) + defined(TEST_INV) +defined(TEST_SQRT) != 1
# error "choose one test"
#endif
#if defined(TEST_INV) || defined(TEST_SQRT)
# define C_PRIME
static void genprime_cb(int p, int n, void *arg);
#endif
#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>
#include <openssl/rand.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 7
#if NUM_START > NUM_SIZES
# error "NUM_START > NUM_SIZES"
#endif
static int sizes[NUM_SIZES]={128,256,512,1024,2048,4096,8192};
static int mul_c[NUM_SIZES]={8*8*8*8*8*8,8*8*8*8*8,8*8*8*8,8*8*8,8*8,8,1};
/*static int sizes[NUM_SIZES]={59,179,299,419,539}; */
#define RAND_SEED(string) { const char str[] = string; RAND_seed(string, sizeof str); }
void do_mul_exp(BIGNUM *r,BIGNUM *a,BIGNUM *b,BIGNUM *c,BN_CTX *ctx);
int main(int argc, char **argv)
{
BN_CTX *ctx;
BIGNUM *a,*b,*c,*r;
#if 1
if (!CRYPTO_set_mem_debug_functions(0,0,0,0,0))
abort();
#endif
ctx=BN_CTX_new();
a=BN_new();
b=BN_new();
c=BN_new();
r=BN_new();
while (!RAND_status())
/* not enough bits */
RAND_SEED("I demand a manual recount!");
do_mul_exp(r,a,b,c,ctx);
return 0;
}
void do_mul_exp(BIGNUM *r, BIGNUM *a, BIGNUM *b, BIGNUM *c, BN_CTX *ctx)
{
int i,k;
double tm;
long num;
num=BASENUM;
for (i=NUM_START; i<NUM_SIZES; i++)
{
#ifdef C_PRIME
# ifdef TEST_SQRT
if (!BN_set_word(a, 64)) goto err;
if (!BN_set_word(b, P_MOD_64)) goto err;
# define ADD a
# define REM b
# else
# define ADD NULL
# define REM NULL
# endif
if (!BN_generate_prime(c,sizes[i],0,ADD,REM,genprime_cb,NULL)) goto err;
putc('\n', stderr);
fflush(stderr);
#endif
for (k=0; k<num; k++)
{
if (k%50 == 0) /* Average over num/50 different choices of random numbers. */
{
if (!BN_pseudo_rand(a,sizes[i],1,0)) goto err;
if (!BN_pseudo_rand(b,sizes[i],1,0)) goto err;
#ifndef C_PRIME
if (!BN_pseudo_rand(c,sizes[i],1,1)) goto err;
#endif
#ifdef TEST_SQRT
if (!BN_mod_sqr(a,a,c,ctx)) goto err;
if (!BN_mod_sqr(b,b,c,ctx)) goto err;
#else
if (!BN_nnmod(a,a,c,ctx)) goto err;
if (!BN_nnmod(b,b,c,ctx)) goto err;
#endif
if (k == 0)
Time_F(START);
}
#if defined(TEST_EXP)
if (!BN_mod_exp(r,a,b,c,ctx)) goto err;
#elif defined(TEST_MUL)
{
int i = 0;
for (i = 0; i < 50; i++)
if (!BN_mod_mul(r,a,b,c,ctx)) goto err;
}
#elif defined(TEST_SQR)
{
int i = 0;
for (i = 0; i < 50; i++)
{
if (!BN_mod_sqr(r,a,c,ctx)) goto err;
if (!BN_mod_sqr(r,b,c,ctx)) goto err;
}
}
#elif defined(TEST_GCD)
if (!BN_gcd(r,a,b,ctx)) goto err;
if (!BN_gcd(r,b,c,ctx)) goto err;
if (!BN_gcd(r,c,a,ctx)) goto err;
#elif defined(TEST_KRON)
if (-2 == BN_kronecker(a,b,ctx)) goto err;
if (-2 == BN_kronecker(b,c,ctx)) goto err;
if (-2 == BN_kronecker(c,a,ctx)) goto err;
#elif defined(TEST_INV)
if (!BN_mod_inverse(r,a,c,ctx)) goto err;
if (!BN_mod_inverse(r,b,c,ctx)) goto err;
#else /* TEST_SQRT */
if (!BN_mod_sqrt(r,a,c,ctx)) goto err;
if (!BN_mod_sqrt(r,b,c,ctx)) goto err;
#endif
}
tm=Time_F(STOP);
printf(
#if defined(TEST_EXP)
"modexp %4d ^ %4d %% %4d"
#elif defined(TEST_MUL)
"50*modmul %4d %4d %4d"
#elif defined(TEST_SQR)
"100*modsqr %4d %4d %4d"
#elif defined(TEST_GCD)
"3*gcd %4d %4d %4d"
#elif defined(TEST_KRON)
"3*kronecker %4d %4d %4d"
#elif defined(TEST_INV)
"2*inv %4d %4d mod %4d"
#else /* TEST_SQRT */
"2*sqrt [prime == %d (mod 64)] %4d %4d mod %4d"
#endif
" -> %8.6fms %5.1f (%ld)\n",
#ifdef TEST_SQRT
P_MOD_64,
#endif
sizes[i],sizes[i],sizes[i],tm*1000.0/num,tm*mul_c[i]/num, num);
num/=7;
if (num <= 0) num=1;
}
return;
err:
ERR_print_errors_fp(stderr);
}
#ifdef C_PRIME
static void genprime_cb(int p, int n, void *arg)
{
char c='*';
if (p == 0) c='.';
if (p == 1) c='+';
if (p == 2) c='*';
if (p == 3) c='\n';
putc(c, stderr);
fflush(stderr);
(void)n;
(void)arg;
}
#endif