randtest.c revision 296465 
1/* crypto/rand/randtest.c */
2/* Copyright (C) 1995-1998 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 <openssl/rand.h>
62
63#include "../e_os.h"
64
65/* some FIPS 140-1 random number test */
66/* some simple tests */
67
68int main(int argc, char **argv)
69{
70    unsigned char buf[2500];
71    int i, j, k, s, sign, nsign, err = 0;
72    unsigned long n1;
73    unsigned long n2[16];
74    unsigned long runs[2][34];
75    /*
76     * double d;
77     */
78    long d;
79
80    i = RAND_pseudo_bytes(buf, 2500);
81    if (i < 0) {
82        printf("init failed, the rand method is not properly installed\n");
83        err++;
84        goto err;
85    }
86
87    n1 = 0;
88    for (i = 0; i < 16; i++)
89        n2[i] = 0;
90    for (i = 0; i < 34; i++)
91        runs[0][i] = runs[1][i] = 0;
92
93    /* test 1 and 2 */
94    sign = 0;
95    nsign = 0;
96    for (i = 0; i < 2500; i++) {
97        j = buf[i];
98
99        n2[j & 0x0f]++;
100        n2[(j >> 4) & 0x0f]++;
101
102        for (k = 0; k < 8; k++) {
103            s = (j & 0x01);
104            if (s == sign)
105                nsign++;
106            else {
107                if (nsign > 34)
108                    nsign = 34;
109                if (nsign != 0) {
110                    runs[sign][nsign - 1]++;
111                    if (nsign > 6)
112                        runs[sign][5]++;
113                }
114                sign = s;
115                nsign = 1;
116            }
117
118            if (s)
119                n1++;
120            j >>= 1;
121        }
122    }
123    if (nsign > 34)
124        nsign = 34;
125    if (nsign != 0)
126        runs[sign][nsign - 1]++;
127
128    /* test 1 */
129    if (!((9654 < n1) && (n1 < 10346))) {
130        printf("test 1 failed, X=%lu\n", n1);
131        err++;
132    }
133    printf("test 1 done\n");
134
135    /* test 2 */
136#ifdef undef
137    d = 0;
138    for (i = 0; i < 16; i++)
139        d += n2[i] * n2[i];
140    d = d * 16.0 / 5000.0 - 5000.0;
141    if (!((1.03 < d) && (d < 57.4))) {
142        printf("test 2 failed, X=%.2f\n", d);
143        err++;
144    }
145#endif
146    d = 0;
147    for (i = 0; i < 16; i++)
148        d += n2[i] * n2[i];
149    d = (d * 8) / 25 - 500000;
150    if (!((103 < d) && (d < 5740))) {
151        printf("test 2 failed, X=%ld.%02ld\n", d / 100L, d % 100L);
152        err++;
153    }
154    printf("test 2 done\n");
155
156    /* test 3 */
157    for (i = 0; i < 2; i++) {
158        if (!((2267 < runs[i][0]) && (runs[i][0] < 2733))) {
159            printf("test 3 failed, bit=%d run=%d num=%lu\n",
160                   i, 1, runs[i][0]);
161            err++;
162        }
163        if (!((1079 < runs[i][1]) && (runs[i][1] < 1421))) {
164            printf("test 3 failed, bit=%d run=%d num=%lu\n",
165                   i, 2, runs[i][1]);
166            err++;
167        }
168        if (!((502 < runs[i][2]) && (runs[i][2] < 748))) {
169            printf("test 3 failed, bit=%d run=%d num=%lu\n",
170                   i, 3, runs[i][2]);
171            err++;
172        }
173        if (!((223 < runs[i][3]) && (runs[i][3] < 402))) {
174            printf("test 3 failed, bit=%d run=%d num=%lu\n",
175                   i, 4, runs[i][3]);
176            err++;
177        }
178        if (!((90 < runs[i][4]) && (runs[i][4] < 223))) {
179            printf("test 3 failed, bit=%d run=%d num=%lu\n",
180                   i, 5, runs[i][4]);
181            err++;
182        }
183        if (!((90 < runs[i][5]) && (runs[i][5] < 223))) {
184            printf("test 3 failed, bit=%d run=%d num=%lu\n",
185                   i, 6, runs[i][5]);
186            err++;
187        }
188    }
189    printf("test 3 done\n");
190
191    /* test 4 */
192    if (runs[0][33] != 0) {
193        printf("test 4 failed, bit=%d run=%d num=%lu\n", 0, 34, runs[0][33]);
194        err++;
195    }
196    if (runs[1][33] != 0) {
197        printf("test 4 failed, bit=%d run=%d num=%lu\n", 1, 34, runs[1][33]);
198        err++;
199    }
200    printf("test 4 done\n");
201 err:
202    err = ((err) ? 1 : 0);
203#ifdef OPENSSL_SYS_NETWARE
204    if (err)
205        printf("ERROR: %d\n", err);
206#endif
207    EXIT(err);
208    return (err);
209}
210