OSX/libsecurity_apple_csp/open_ssl/bn/expspeed.c

   1 /*
   2  * Copyright (c) 2000-2001,2011,2014 Apple Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 /* unused */
  20
  21 /* crypto/bn/expspeed.c */
  22 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  23  * All rights reserved.
  24  *
  25  * This package is an SSL implementation written
  26  * by Eric Young (eay@cryptsoft.com).
  27  * The implementation was written so as to conform with Netscapes SSL.
  28  *
  29  * This library is free for commercial and non-commercial use as long as
  30  * the following conditions are aheared to.  The following conditions
  31  * apply to all code found in this distribution, be it the RC4, RSA,
  32  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  33  * included with this distribution is covered by the same copyright terms
  34  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  35  *
  36  * Copyright remains Eric Young's, and as such any Copyright notices in
  37  * the code are not to be removed.
  38  * If this package is used in a product, Eric Young should be given attribution
  39  * as the author of the parts of the library used.
  40  * This can be in the form of a textual message at program startup or
  41  * in documentation (online or textual) provided with the package.
  42  *
  43  * Redistribution and use in source and binary forms, with or without
  44  * modification, are permitted provided that the following conditions
  45  * are met:
  46  * 1. Redistributions of source code must retain the copyright
  47  *    notice, this list of conditions and the following disclaimer.
  48  * 2. Redistributions in binary form must reproduce the above copyright
  49  *    notice, this list of conditions and the following disclaimer in the
  50  *    documentation and/or other materials provided with the distribution.
  51  * 3. All advertising materials mentioning features or use of this software
  52  *    must display the following acknowledgement:
  53  *    "This product includes cryptographic software written by
  54  *     Eric Young (eay@cryptsoft.com)"
  55  *    The word 'cryptographic' can be left out if the rouines from the library
  56  *    being used are not cryptographic related :-).
  57  * 4. If you include any Windows specific code (or a derivative thereof) from
  58  *    the apps directory (application code) you must include an acknowledgement:
  59  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  60  *
  61  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  62  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  63  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  64  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  65  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  66  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  67  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  68  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  69  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  70  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  71  * SUCH DAMAGE.
  72  *
  73  * The licence and distribution terms for any publically available version or
  74  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  75  * copied and put under another distribution licence
  76  * [including the GNU Public Licence.]
  77  */
  78
  79 /* most of this code has been pilfered from my libdes speed.c program */
  80
  81 #define BASENUM 5000
  82 #undef PROG
  83 #define PROG bnspeed_main
  84
  85 #include <stdio.h>
  86 #include <stdlib.h>
  87 #include <signal.h>
  88 #include <string.h>
  89 #include <openssl/crypto_legacy.h>
  90 #include <openssl/opensslerr.h>
  91
  92 #if !defined(MSDOS) && (!defined(VMS) || defined(__DECC))
  93 #define TIMES
  94 #endif
  95
  96 #ifndef _IRIX
  97 #include <time.h>
  98 #endif
  99 #ifdef TIMES
 100 #include <sys/types.h>
 101 #include <sys/times.h>
 102 #endif
 103
 104 /* Depending on the VMS version, the tms structure is perhaps defined.
 105    The __TMS macro will show if it was.  If it wasn't defined, we should
 106    undefine TIMES, since that tells the rest of the program how things
 107    should be handled.                           -- Richard Levitte */
 108 #if defined(VMS) && defined(__DECC) && !defined(__TMS)
 109 #undef TIMES
 110 #endif
 111
 112 #ifndef TIMES
 113 #include <sys/timeb.h>
 114 #endif
 115
 116 #if defined(sun) || defined(__ultrix)
 117 #define _POSIX_SOURCE
 118 #include <limits.h>
 119 #include <sys/param.h>
 120 #endif
 121
 122 #include <openssl/bn_legacy.h>
 123 #include <openssl/x509_legacy.h>
 124
 125 /* The following if from times(3) man page.  It may need to be changed */
 126 #ifndef HZ
 127 # ifndef CLK_TCK
 128 #  ifndef _BSD_CLK_TCK_ /* FreeBSD hack */
 129 #   define HZ   100.0
 130 #  else /* _BSD_CLK_TCK_ */
 131 #   define HZ ((double)_BSD_CLK_TCK_)
 132 #  endif
 133 # else /* CLK_TCK */
 134 #  define HZ ((double)CLK_TCK)
 135 # endif
 136 #endif
 137
 138 #undef BUFSIZE
 139 #define BUFSIZE ((long)1024*8)
 140 int run=0;
 141
 142 static double Time_F(int s);
 143 #define START   0
 144 #define STOP    1
 145
 146 static double Time_F(int s)
 147         {
 148         double ret;
 149 #ifdef TIMES
 150         static struct tms tstart,tend;
 151
 152         if (s == START)
 153                 {
 154                 times(&tstart);
 155                 return(0);
 156                 }
 157         else
 158                 {
 159                 times(&tend);
 160                 ret=((double)(tend.tms_utime-tstart.tms_utime))/HZ;
 161                 return((ret < 1e-3)?1e-3:ret);
 162                 }
 163 #else /* !times() */
 164         static struct timeb tstart,tend;
 165         long i;
 166
 167         if (s == START)
 168                 {
 169                 ftime(&tstart);
 170                 return(0);
 171                 }
 172         else
 173                 {
 174                 ftime(&tend);
 175                 i=(long)tend.millitm-(long)tstart.millitm;
 176                 ret=((double)(tend.time-tstart.time))+((double)i)/1000.0;
 177                 return((ret < 0.001)?0.001:ret);
 178                 }
 179 #endif
 180         }
 181
 182 #define NUM_SIZES       6
 183 static int sizes[NUM_SIZES]={256,512,1024,2048,4096,8192};
 184 static int mul_c[NUM_SIZES]={8*8*8*8*8,8*8*8*8,8*8*8,8*8,8,1};
 185 /*static int sizes[NUM_SIZES]={59,179,299,419,539}; */
 186
 187 void do_mul_exp(BIGNUM *r,BIGNUM *a,BIGNUM *b,BIGNUM *c,BN_CTX *ctx);
 188
 189 int main(int argc, char **argv)
 190         {
 191         BN_CTX *ctx;
 192         BIGNUM *a,*b,*c,*r;
 193
 194         ctx=BN_CTX_new();
 195         a=BN_new();
 196         b=BN_new();
 197         c=BN_new();
 198         r=BN_new();
 199
 200         do_mul_exp(r,a,b,c,ctx);
 201         }
 202
 203 void do_mul_exp(BIGNUM *r, BIGNUM *a, BIGNUM *b, BIGNUM *c, BN_CTX *ctx)
 204         {
 205         int i,k;
 206         double tm;
 207         long num;
 208         BN_MONT_CTX m;
 209
 210         memset(&m,0,sizeof(m));
 211
 212         num=BASENUM;
 213         for (i=0; i<NUM_SIZES; i++)
 214                 {
 215                 BN_rand(a,sizes[i],1,0);
 216                 BN_rand(b,sizes[i],1,0);
 217                 BN_rand(c,sizes[i],1,1);
 218                 BN_mod(a,a,c,ctx);
 219                 BN_mod(b,b,c,ctx);
 220
 221                 BN_MONT_CTX_set(&m,c,ctx);
 222
 223                 Time_F(START);
 224                 for (k=0; k<num; k++)
 225                         BN_mod_exp_mont(r,a,b,c,ctx,&m);
 226                 tm=Time_F(STOP);
 227                 printf("mul %4d ^ %4d %% %d -> %8.3fms %5.1f\n",sizes[i],sizes[i],sizes[i],tm*1000.0/num,tm*mul_c[i]/num);
 228                 num/=7;
 229                 if (num <= 0) num=1;
 230                 }
 231
 232         }
 233