aboutsummaryrefslogtreecommitdiff
path: root/src/util/test_crypto_hash.c
blob: a8ef39a380f47c4912d7fecbc59e540d23ccf7b3 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
/*
     This file is part of GNUnet.
     (C) 2002, 2003, 2004, 2006, 2009 Christian Grothoff (and other contributing authors)

     GNUnet is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published
     by the Free Software Foundation; either version 3, or (at your
     option) any later version.

     GNUnet is distributed in the hope that it will be useful, but
     WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     General Public License for more details.

     You should have received a copy of the GNU General Public License
     along with GNUnet; see the file COPYING.  If not, write to the
     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.
*/

/**
 * @author Christian Grothoff
 * @file util/test_crypto_hash.c
 * @brief Test for crypto_hash.c
 */
#include "platform.h"
#include "gnunet_common.h"
#include "gnunet_crypto_lib.h"
#include "gnunet_scheduler_lib.h"

static char block[65536];

#define FILENAME "testblock.dat"

static int
test (int number)
{
  struct GNUNET_HashCode h1;
  struct GNUNET_HashCode h2;
  struct GNUNET_CRYPTO_HashAsciiEncoded enc;

  memset (&h1, number, sizeof (struct GNUNET_HashCode));
  GNUNET_CRYPTO_hash_to_enc (&h1, &enc);
  if (GNUNET_OK != GNUNET_CRYPTO_hash_from_string ((char *) &enc, &h2))
  {
    printf ("enc2hash failed!\n");
    return 1;
  }
  if (0 != memcmp (&h1, &h2, sizeof (struct GNUNET_HashCode)))
    return 1;
  return 0;
}

static int
testEncoding ()
{
  int i;

  for (i = 0; i < 255; i++)
    if (0 != test (i))
      return 1;
  return 0;
}

static int
testArithmetic ()
{
  static struct GNUNET_CRYPTO_AesSessionKey zskey;
  static struct GNUNET_CRYPTO_AesInitializationVector ziv;
  struct GNUNET_HashCode h1;
  struct GNUNET_HashCode h2;
  struct GNUNET_HashCode d;
  struct GNUNET_HashCode s;
  struct GNUNET_CRYPTO_AesSessionKey skey;
  struct GNUNET_CRYPTO_AesInitializationVector iv;

  GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &h1);
  GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &h2);
  if (GNUNET_CRYPTO_hash_distance_u32 (&h1, &h2) !=
      GNUNET_CRYPTO_hash_distance_u32 (&h2, &h1))
    return 1;
  GNUNET_CRYPTO_hash_difference (&h1, &h2, &d);
  GNUNET_CRYPTO_hash_sum (&h1, &d, &s);
  if (0 != GNUNET_CRYPTO_hash_cmp (&s, &h2))
    return 1;
  GNUNET_CRYPTO_hash_xor (&h1, &h2, &d);
  GNUNET_CRYPTO_hash_xor (&h1, &d, &s);
  if (0 != GNUNET_CRYPTO_hash_cmp (&s, &h2))
    return 1;
  if (0 != GNUNET_CRYPTO_hash_xorcmp (&s, &h2, &h1))
    return 1;
  if (-1 != GNUNET_CRYPTO_hash_xorcmp (&h1, &h2, &h1))
    return 1;
  if (1 != GNUNET_CRYPTO_hash_xorcmp (&h1, &h2, &h2))
    return 1;
  memset (&d, 0xF0, sizeof (d));
  if (0 != GNUNET_CRYPTO_hash_get_bit (&d, 3))
    return 1;
  if (1 != GNUNET_CRYPTO_hash_get_bit (&d, 6))
    return 1;
  memset (&d, 0, sizeof (d));
  GNUNET_CRYPTO_hash_to_aes_key (&d, &skey, &iv);
  if ((0 != memcmp (&skey, &zskey, sizeof (skey) - sizeof (unsigned int))) ||
      (0 != memcmp (&iv, &ziv, sizeof (iv))))
    return 1;
  return 0;
}

static void
finished_task (void *cls, const struct GNUNET_HashCode * res)
{
  int *ret = cls;
  struct GNUNET_HashCode want;

  GNUNET_CRYPTO_hash (block, sizeof (block), &want);
  if (0 != memcmp (res, &want, sizeof (want)))
    *ret = 2;
  else
    *ret = 0;
}


static void
file_hasher (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  GNUNET_assert (NULL !=
                 GNUNET_CRYPTO_hash_file (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
                                          FILENAME, 1024, &finished_task, cls));
}


static int
testFileHash ()
{
  int ret;
  FILE *f;

  memset (block, 42, sizeof (block) / 2);
  memset (&block[sizeof (block) / 2], 43, sizeof (block) / 2);
  GNUNET_assert (NULL != (f = FOPEN (FILENAME, "w+")));
  GNUNET_break (sizeof (block) == fwrite (block, 1, sizeof (block), f));
  GNUNET_break (0 == FCLOSE (f));
  ret = 1;
  GNUNET_SCHEDULER_run (&file_hasher, &ret);
  GNUNET_break (0 == UNLINK (FILENAME));
  return ret;
}


int
main (int argc, char *argv[])
{
  int failureCount = 0;
  int i;

  GNUNET_log_setup ("test-crypto-hash", "WARNING", NULL);
  for (i = 0; i < 10; i++)
    failureCount += testEncoding ();
  failureCount += testArithmetic ();
  failureCount += testFileHash ();
  if (failureCount != 0)
    return 1;
  return 0;
}

/* end of hashingtest.c */