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/*
This file is part of GNUnet.
Copyright (C) 2002, 2003, 2004, 2006, 2009, 2022 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
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
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @author Christian Grothoff
* @file util/test_crypto_hash.c
* @brief Test for crypto_hash.c
*/
#include "platform.h"
#include "gnunet_util_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 != GNUNET_memcmp (&h1,
&h2))
return 1;
return 0;
}
static int
test_encoding (void)
{
for (int i = 0; i < 255; i++)
if (0 != test (i))
return 1;
return 0;
}
static int
test_arithmetic (void)
{
struct GNUNET_HashCode h1;
struct GNUNET_HashCode h2;
struct GNUNET_HashCode d;
struct GNUNET_HashCode s;
struct GNUNET_CRYPTO_SymmetricSessionKey skey;
struct GNUNET_CRYPTO_SymmetricInitializationVector 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,
0,
sizeof(d));
GNUNET_CRYPTO_hash_to_aes_key (&d,
&skey,
&iv);
memset (&h1,
0,
sizeof (h1));
h1.bits[1] = htonl (0x00200000); /* 32 + 8 + 2 = 42 MSB bits cleared */
GNUNET_assert (42 ==
GNUNET_CRYPTO_hash_count_leading_zeros (&h1));
GNUNET_assert (512 - 42 - 1 ==
GNUNET_CRYPTO_hash_count_tailing_zeros (&h1));
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 != GNUNET_memcmp (res,
&want))
*ret = 2;
else
*ret = 0;
}
static void
file_hasher (void *cls)
{
GNUNET_assert (NULL !=
GNUNET_CRYPTO_hash_file (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
FILENAME,
1024,
&finished_task,
cls));
}
static int
test_file_hash (void)
{
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;
GNUNET_log_setup ("test-crypto-hash",
"WARNING",
NULL);
for (int i = 0; i < 10; i++)
failureCount += test_encoding ();
failureCount += test_arithmetic ();
failureCount += test_file_hash ();
if (0 != failureCount)
return 1;
return 0;
}
/* end of test_crypto_hash.c */
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