crypto/rand/randtest.c

   1 /* crypto/rand/randtest.c */
   2 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #include <stdio.h>
  60 #include <stdlib.h>
  61 #include "rand.h"
  62
  63 /* some FIPS 140-1 random number test */
  64 /* some simple tests */
  65
  66 int main()
  67         {
  68         unsigned char buf[2500];
  69         int i,j,k,s,sign,nsign,err=0;
  70         unsigned long n1;
  71         unsigned long n2[16];
  72         unsigned long runs[2][34];
  73         /*double d; */
  74         long d;
  75
  76         RAND_bytes(buf,2500);
  77
  78         n1=0;
  79         for (i=0; i<16; i++) n2[i]=0;
  80         for (i=0; i<34; i++) runs[0][i]=runs[1][i]=0;
  81
  82         /* test 1 and 2 */
  83         sign=0;
  84         nsign=0;
  85         for (i=0; i<2500; i++)
  86                 {
  87                 j=buf[i];
  88
  89                 n2[j&0x0f]++;
  90                 n2[(j>>4)&0x0f]++;
  91
  92                 for (k=0; k<8; k++)
  93                         {
  94                         s=(j&0x01);
  95                         if (s == sign)
  96                                 nsign++;
  97                         else
  98                                 {
  99                                 if (nsign > 34) nsign=34;
 100                                 if (nsign != 0)
 101                                         {
 102                                         runs[sign][nsign-1]++;
 103                                         if (nsign > 6)
 104                                                 runs[sign][5]++;
 105                                         }
 106                                 sign=s;
 107                                 nsign=1;
 108                                 }
 109
 110                         if (s) n1++;
 111                         j>>=1;
 112                         }
 113                 }
 114                 if (nsign > 34) nsign=34;
 115                 if (nsign != 0) runs[sign][nsign-1]++;
 116
 117         /* test 1 */
 118         if (!((9654 < n1) && (n1 < 10346)))
 119                 {
 120                 printf("test 1 failed, X=%ld\n",n1);
 121                 err++;
 122                 }
 123         printf("test 1 done\n");
 124
 125         /* test 2 */
 126 #ifdef undef
 127         d=0;
 128         for (i=0; i<16; i++)
 129                 d+=n2[i]*n2[i];
 130         d=d*16.0/5000.0-5000.0;
 131         if (!((1.03 < d) && (d < 57.4)))
 132                 {
 133                 printf("test 2 failed, X=%.2f\n",d);
 134                 err++;
 135                 }
 136 #endif
 137         d=0;
 138         for (i=0; i<16; i++)
 139                 d+=n2[i]*n2[i];
 140         d=(d*8)/25-500000;
 141         if (!((103 < d) && (d < 5740)))
 142                 {
 143                 printf("test 2 failed, X=%ld.%02ld\n",d/100L,d%100L);
 144                 err++;
 145                 }
 146         printf("test 2 done\n");
 147
 148         /* test 3 */
 149         for (i=0; i<2; i++)
 150                 {
 151                 if (!((2267 < runs[i][0]) && (runs[i][0] < 2733)))
 152                         {
 153                         printf("test 3 failed, bit=%d run=%d num=%ld\n",
 154                                 i,1,runs[i][0]);
 155                         err++;
 156                         }
 157                 if (!((1079 < runs[i][1]) && (runs[i][1] < 1421)))
 158                         {
 159                         printf("test 3 failed, bit=%d run=%d num=%ld\n",
 160                                 i,2,runs[i][1]);
 161                         err++;
 162                         }
 163                 if (!(( 502 < runs[i][2]) && (runs[i][2] <  748)))
 164                         {
 165                         printf("test 3 failed, bit=%d run=%d num=%ld\n",
 166                                 i,3,runs[i][2]);
 167                         err++;
 168                         }
 169                 if (!(( 223 < runs[i][3]) && (runs[i][3] <  402)))
 170                         {
 171                         printf("test 3 failed, bit=%d run=%d num=%ld\n",
 172                                 i,4,runs[i][3]);
 173                         err++;
 174                         }
 175                 if (!((  90 < runs[i][4]) && (runs[i][4] <  223)))
 176                         {
 177                         printf("test 3 failed, bit=%d run=%d num=%ld\n",
 178                                 i,5,runs[i][4]);
 179                         err++;
 180                         }
 181                 if (!((  90 < runs[i][5]) && (runs[i][5] <  223)))
 182                         {
 183                         printf("test 3 failed, bit=%d run=%d num=%ld\n",
 184                                 i,6,runs[i][5]);
 185                         err++;
 186                         }
 187                 }
 188         printf("test 3 done\n");
 189
 190         /* test 4 */
 191         if (runs[0][33] != 0)
 192                 {
 193                 printf("test 4 failed, bit=%d run=%d num=%ld\n",
 194                         0,34,runs[0][33]);
 195                 err++;
 196                 }
 197         if (runs[1][33] != 0)
 198                 {
 199                 printf("test 4 failed, bit=%d run=%d num=%ld\n",
 200                         1,34,runs[1][33]);
 201                 err++;
 202                 }
 203         printf("test 4 done\n");
 204         err=((err)?1:0);
 205         exit(err);
 206         return(err);
 207         }