mirror of https://github.com/openssl/openssl.git
110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
/*
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* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <openssl/rand.h>
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#include "testutil.h"
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/* some FIPS 140-1 random number test */
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/* some simple tests */
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static int fips_random_tests(void)
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{
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unsigned char buf[2500];
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int i, j, k, s, sign, nsign, ret = 1;
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unsigned long n1;
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unsigned long n2[16];
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unsigned long runs[2][34];
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long d;
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if (!TEST_int_ge(RAND_bytes(buf, sizeof(buf)), 0))
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return 0;
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n1 = 0;
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for (i = 0; i < 16; i++)
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n2[i] = 0;
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for (i = 0; i < 34; i++)
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runs[0][i] = runs[1][i] = 0;
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/* test 1 and 2 */
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sign = 0;
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nsign = 0;
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for (i = 0; i < 2500; i++) {
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j = buf[i];
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n2[j & 0x0f]++;
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n2[(j >> 4) & 0x0f]++;
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for (k = 0; k < 8; k++) {
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s = (j & 0x01);
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if (s == sign)
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nsign++;
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else {
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if (nsign > 34)
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nsign = 34;
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if (nsign != 0) {
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runs[sign][nsign - 1]++;
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if (nsign > 6)
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runs[sign][5]++;
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}
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sign = s;
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nsign = 1;
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}
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if (s)
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n1++;
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j >>= 1;
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}
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}
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if (nsign > 34)
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nsign = 34;
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if (nsign != 0)
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runs[sign][nsign - 1]++;
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/* test 1 */
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if (!TEST_true(9654 < n1 && n1 < 10346)) {
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TEST_info("test 1 failed, X=%lu", n1);
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ret = 0;
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}
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/* test 2 */
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d = 0;
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for (i = 0; i < 16; i++)
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d += n2[i] * n2[i];
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d = (d * 8) / 25 - 500000;
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if (!TEST_true(103 < d && d < 5740)) {
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TEST_info("test 2 failed, X=%ld.%02ld", d / 100L, d % 100L);
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ret = 0;
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}
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/* test 3 */
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for (i = 0; i < 2; i++) {
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if (!TEST_true(2267 < runs[i][0] && runs[i][0] < 2733)
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|| !TEST_true(1079 < runs[i][1] && runs[i][1] < 1421)
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|| !TEST_true(502 < runs[i][2] && runs[i][2] < 748)
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|| !TEST_true(223 < runs[i][3] && runs[i][3] < 402)
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|| !TEST_true(90 < runs[i][4] && runs[i][4] < 223)
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|| !TEST_true(90 < runs[i][5] && runs[i][5] < 223)) {
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TEST_info("During run %d", i);
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ret = 0;
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}
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}
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/* test 4 */
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if (!TEST_int_eq(runs[0][33], 0)
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|| !TEST_int_eq(runs[1][33], 0))
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ret = 0;
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return ret;
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}
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void register_tests(void)
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{
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ADD_TEST(fips_random_tests);
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}
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