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Diffstat (limited to 'src/util/test_crypto_random.c')
-rw-r--r-- | src/util/test_crypto_random.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/util/test_crypto_random.c b/src/util/test_crypto_random.c new file mode 100644 index 000000000..e237c14a4 --- /dev/null +++ b/src/util/test_crypto_random.c | |||
@@ -0,0 +1,71 @@ | |||
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 | |||
30 | static int | ||
31 | test (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 | |||
61 | int | ||
62 | main (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 | } | ||