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Message-ID: <1305068440.3864.51.camel@cthulhu.linuxasylum.net>
Date: Wed, 11 May 2011 01:00:40 +0200
From: Samuele Giovanni Tonon <samu@...uxasylum.net>
To: john-dev <john-dev@...ts.openwall.com>
Subject: single mode problem
hello,
while trying to trace some memory problem in single mode with
ssha-opencl format, i finally found the culprit.
in single.c:
salt = single_db->salts;
do {
single_alloc_keys(&salt->keys);
} while ((salt = salt->next));
so single_alloc_keys is called for every password found
in the file and it allocates max_keys_per_crypt * password length which
for opencl is SSHA_NUM_KEYS * PLAINTEXT_LENGTH so
1024 * 2048 * 32 bytes for each key .
i could lower ssha_num_keys but this would hurt performance.
Any suggestion on how to fix this problem ?
this doesn't happen in incremental or wordlist mode.
N.B. i noted that, when single mode is gone memory is still allocated
cause there is no free(salt) : is it intended ?
Cheers
Samuele
--
While various networks have become deeply rooted, and thoughts have been
sent out as light and electrons in a singular direction, this era has
yet to digitize/computerize to the degree necessary for individuals to
become a singular complex entity.
KOUKAKU KIDOUTAI Stand Alone Complex
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