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Message-ID: <20091227175404.GA4334@openwall.com>
Date: Sun, 27 Dec 2009 20:54:04 +0300
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: JtR 1.7.4 and jumbo patch update
On Sun, Dec 27, 2009 at 12:38:51PM -0500, madfran wrote:
> Result for John-1.7.4
> $ ./john --format=NT 2009-11-13.TXT
> Loaded 1 password hash (NT MD4 [128/128 SSE2 + 32/32])
> guesses: 0 time: 0:00:00:03 (3) c/s: 486633 trying: puccca - pucclo
> guesses: 0 time: 0:00:07:17 (3) c/s: 12139K trying: phepilas - phepiloy
> guesses: 0 time: 0:00:10:43 (3) c/s: 12236K trying: rluca2t - rluco2t
>
>
> Result for John-1.7.3
> $ ./john --format=NT 2009-11-13.TXT
> Loaded 1 password hash (NT MD4 [128/128 SSE2 + 32/32])
> guesses: 0 time: 0:00:00:03 (3) c/s: 503645 trying: puccca - pucclo
> guesses: 0 time: 0:00:07:21 (3) c/s: 11524K trying: ccplo190 - ccplo156
> guesses: 0 time: 0:00:10:49 (3) c/s: 11622K trying: shuef0$* - shueehos
I'm sorry, but this does not really compare the two versions of JtR.
Any discrepancies in c/s rate must be accidental (different placement in
CPU caches, etc.), which is particularly common at c/s rates this high.
The changes in 1.7.4 were focused on word mangling rules support and
performance of word mangling rules, whereas the sessions above went to
"incremental mode" (reported as pass 3) during the first 3 seconds (or
perhaps during the first second even).
Thanks anyway,
Alexander
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