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-rw-r--r--src/util/test_crypto_random.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/src/util/test_crypto_random.c b/src/util/test_crypto_random.c
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1/*
2 This file is part of GNUnet.
3 (C) 2009 Christian Grothoff (and other contributing authors)
4
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 2, or (at your
8 option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
19
20*/
21
22/**
23 * @file util/test_crypto_random.c
24 * @brief testcase for crypto_random.c
25 */
26#include "platform.h"
27#include "gnunet_common.h"
28#include "gnunet_crypto_lib.h"
29
30static int
31test (enum GNUNET_CRYPTO_Quality mode)
32{
33
34 int buf[1024];
35 unsigned int *b2;
36 int i;
37 unsigned long long n;
38
39 for (i = 0; i < 1024; i++)
40 GNUNET_break (1024 > (buf[i] = GNUNET_CRYPTO_random_u32 (mode, 1024)));
41 for (i = 0; i < 10; i++)
42 {
43 b2 = GNUNET_CRYPTO_random_permute (mode, 1024);
44 if (0 == memcmp (b2, buf, sizeof (buf)))
45 {
46 fprintf (stderr, "!");
47 GNUNET_free (b2);
48 continue;
49 }
50 GNUNET_free (b2);
51 break;
52 }
53 if (i == 10)
54 return 1; /* virtually impossible... */
55
56 for (n = 10; n < 1024LL * 1024LL * 1024LL; n *= 10)
57 GNUNET_break (n > GNUNET_CRYPTO_random_u64 (mode, n));
58 return 0;
59}
60
61int
62main (int argc, char *argv[])
63{
64 GNUNET_log_setup ("test-crypto-random", "WARNING", NULL);
65 if (0 != test (GNUNET_CRYPTO_QUALITY_WEAK))
66 return 1;
67 if (0 != test (GNUNET_CRYPTO_QUALITY_STRONG))
68 return 1;
69
70 return 0;
71}