381 lines
11 KiB
C
381 lines
11 KiB
C
/* unused */
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/* crypto/bn/expspeed.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/* most of this code has been pilfered from my libdes speed.c program */
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#define BASENUM 5000
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#define NUM_START 0
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/*
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* determine timings for modexp, modmul, modsqr, gcd, Kronecker symbol,
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* modular inverse, or modular square roots
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*/
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#define TEST_EXP
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#undef TEST_MUL
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#undef TEST_SQR
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#undef TEST_GCD
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#undef TEST_KRON
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#undef TEST_INV
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#undef TEST_SQRT
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#define P_MOD_64 9 /* least significant 6 bits for prime to be
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* used for BN_sqrt timings */
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#if defined(TEST_EXP) + defined(TEST_MUL) + defined(TEST_SQR) + defined(TEST_GCD) + defined(TEST_KRON) + defined(TEST_INV) +defined(TEST_SQRT) != 1
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# error "choose one test"
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#endif
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#if defined(TEST_INV) || defined(TEST_SQRT)
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# define C_PRIME
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static void genprime_cb(int p, int n, void *arg);
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#endif
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#undef PROG
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#define PROG bnspeed_main
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#include <stdio.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <string.h>
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#include <openssl/crypto.h>
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#include <openssl/err.h>
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#include <openssl/rand.h>
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#if !defined(OPENSSL_SYS_MSDOS) && (!defined(OPENSSL_SYS_VMS) || defined(__DECC)) && !defined(OPENSSL_SYS_MACOSX)
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# define TIMES
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#endif
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#ifndef _IRIX
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# include <time.h>
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#endif
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#ifdef TIMES
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# include <sys/types.h>
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# include <sys/times.h>
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#endif
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/*
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* Depending on the VMS version, the tms structure is perhaps defined. The
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* __TMS macro will show if it was. If it wasn't defined, we should undefine
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* TIMES, since that tells the rest of the program how things should be
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* handled. -- Richard Levitte
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*/
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#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__TMS)
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# undef TIMES
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#endif
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#ifndef TIMES
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# include <sys/timeb.h>
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#endif
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#if defined(sun) || defined(__ultrix)
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# define _POSIX_SOURCE
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# include <limits.h>
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# include <sys/param.h>
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#endif
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#include <openssl/bn.h>
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#include <openssl/x509.h>
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/* The following if from times(3) man page. It may need to be changed */
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#ifndef HZ
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# ifndef CLK_TCK
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# ifndef _BSD_CLK_TCK_ /* FreeBSD hack */
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# define HZ 100.0
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# else /* _BSD_CLK_TCK_ */
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# define HZ ((double)_BSD_CLK_TCK_)
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# endif
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# else /* CLK_TCK */
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# define HZ ((double)CLK_TCK)
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# endif
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#endif
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#undef BUFSIZE
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#define BUFSIZE ((long)1024*8)
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int run = 0;
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static double Time_F(int s);
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#define START 0
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#define STOP 1
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static double Time_F(int s)
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{
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double ret;
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#ifdef TIMES
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static struct tms tstart, tend;
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if (s == START) {
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times(&tstart);
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return (0);
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} else {
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times(&tend);
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ret = ((double)(tend.tms_utime - tstart.tms_utime)) / HZ;
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return ((ret < 1e-3) ? 1e-3 : ret);
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}
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#else /* !times() */
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static struct timeb tstart, tend;
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long i;
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if (s == START) {
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ftime(&tstart);
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return (0);
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} else {
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ftime(&tend);
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i = (long)tend.millitm - (long)tstart.millitm;
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ret = ((double)(tend.time - tstart.time)) + ((double)i) / 1000.0;
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return ((ret < 0.001) ? 0.001 : ret);
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}
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#endif
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}
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#define NUM_SIZES 7
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#if NUM_START > NUM_SIZES
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# error "NUM_START > NUM_SIZES"
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#endif
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static int sizes[NUM_SIZES] = { 128, 256, 512, 1024, 2048, 4096, 8192 };
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static int mul_c[NUM_SIZES] =
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{ 8 * 8 * 8 * 8 * 8 * 8, 8 * 8 * 8 * 8 * 8, 8 * 8 * 8 * 8, 8 * 8 * 8,
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8 * 8, 8, 1
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};
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/*
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* static int sizes[NUM_SIZES]={59,179,299,419,539};
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*/
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#define RAND_SEED(string) { const char str[] = string; RAND_seed(string, sizeof str); }
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void do_mul_exp(BIGNUM *r, BIGNUM *a, BIGNUM *b, BIGNUM *c, BN_CTX *ctx);
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int main(int argc, char **argv)
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{
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BN_CTX *ctx;
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BIGNUM *a, *b, *c, *r;
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#if 1
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if (!CRYPTO_set_mem_debug_functions(0, 0, 0, 0, 0))
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abort();
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#endif
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ctx = BN_CTX_new();
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a = BN_new();
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b = BN_new();
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c = BN_new();
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r = BN_new();
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while (!RAND_status())
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/* not enough bits */
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RAND_SEED("I demand a manual recount!");
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do_mul_exp(r, a, b, c, ctx);
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return 0;
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}
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void do_mul_exp(BIGNUM *r, BIGNUM *a, BIGNUM *b, BIGNUM *c, BN_CTX *ctx)
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{
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int i, k;
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double tm;
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long num;
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num = BASENUM;
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for (i = NUM_START; i < NUM_SIZES; i++) {
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#ifdef C_PRIME
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# ifdef TEST_SQRT
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if (!BN_set_word(a, 64))
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goto err;
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if (!BN_set_word(b, P_MOD_64))
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goto err;
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# define ADD a
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# define REM b
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# else
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# define ADD NULL
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# define REM NULL
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# endif
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if (!BN_generate_prime(c, sizes[i], 0, ADD, REM, genprime_cb, NULL))
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goto err;
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putc('\n', stderr);
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fflush(stderr);
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#endif
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for (k = 0; k < num; k++) {
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if (k % 50 == 0) { /* Average over num/50 different choices of
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* random numbers. */
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if (!BN_pseudo_rand(a, sizes[i], 1, 0))
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goto err;
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if (!BN_pseudo_rand(b, sizes[i], 1, 0))
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goto err;
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#ifndef C_PRIME
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if (!BN_pseudo_rand(c, sizes[i], 1, 1))
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goto err;
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#endif
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#ifdef TEST_SQRT
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if (!BN_mod_sqr(a, a, c, ctx))
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goto err;
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if (!BN_mod_sqr(b, b, c, ctx))
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goto err;
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#else
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if (!BN_nnmod(a, a, c, ctx))
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goto err;
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if (!BN_nnmod(b, b, c, ctx))
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goto err;
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#endif
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if (k == 0)
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Time_F(START);
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}
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#if defined(TEST_EXP)
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if (!BN_mod_exp(r, a, b, c, ctx))
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goto err;
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#elif defined(TEST_MUL)
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{
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int i = 0;
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for (i = 0; i < 50; i++)
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if (!BN_mod_mul(r, a, b, c, ctx))
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goto err;
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}
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#elif defined(TEST_SQR)
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{
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int i = 0;
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for (i = 0; i < 50; i++) {
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if (!BN_mod_sqr(r, a, c, ctx))
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goto err;
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if (!BN_mod_sqr(r, b, c, ctx))
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goto err;
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}
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}
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#elif defined(TEST_GCD)
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if (!BN_gcd(r, a, b, ctx))
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goto err;
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if (!BN_gcd(r, b, c, ctx))
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goto err;
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if (!BN_gcd(r, c, a, ctx))
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goto err;
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#elif defined(TEST_KRON)
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if (-2 == BN_kronecker(a, b, ctx))
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goto err;
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if (-2 == BN_kronecker(b, c, ctx))
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goto err;
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if (-2 == BN_kronecker(c, a, ctx))
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goto err;
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#elif defined(TEST_INV)
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if (!BN_mod_inverse(r, a, c, ctx))
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goto err;
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if (!BN_mod_inverse(r, b, c, ctx))
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goto err;
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#else /* TEST_SQRT */
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if (!BN_mod_sqrt(r, a, c, ctx))
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goto err;
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if (!BN_mod_sqrt(r, b, c, ctx))
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goto err;
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#endif
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}
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tm = Time_F(STOP);
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printf(
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#if defined(TEST_EXP)
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"modexp %4d ^ %4d %% %4d"
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#elif defined(TEST_MUL)
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"50*modmul %4d %4d %4d"
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#elif defined(TEST_SQR)
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"100*modsqr %4d %4d %4d"
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#elif defined(TEST_GCD)
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"3*gcd %4d %4d %4d"
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#elif defined(TEST_KRON)
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"3*kronecker %4d %4d %4d"
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#elif defined(TEST_INV)
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"2*inv %4d %4d mod %4d"
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#else /* TEST_SQRT */
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"2*sqrt [prime == %d (mod 64)] %4d %4d mod %4d"
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#endif
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" -> %8.6fms %5.1f (%ld)\n",
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#ifdef TEST_SQRT
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P_MOD_64,
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#endif
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sizes[i], sizes[i], sizes[i], tm * 1000.0 / num,
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tm * mul_c[i] / num, num);
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num /= 7;
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if (num <= 0)
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num = 1;
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}
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return;
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err:
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ERR_print_errors_fp(stderr);
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}
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#ifdef C_PRIME
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static void genprime_cb(int p, int n, void *arg)
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{
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char c = '*';
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if (p == 0)
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c = '.';
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if (p == 1)
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c = '+';
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if (p == 2)
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c = '*';
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if (p == 3)
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c = '\n';
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putc(c, stderr);
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fflush(stderr);
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(void)n;
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(void)arg;
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}
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#endif
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