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Message-ID: <20050830230133.GA23005@openwall.com>
Date: Wed, 31 Aug 2005 03:01:33 +0400
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: Oracle password cracker
Simon,
On Thu, Aug 25, 2005 at 10:12:48AM +0200, Simon Marechal wrote:
> Here is an oracle password cracker I wrote for JtR.
Thanks!
> It is not tested and requires tweaking in loader.c and stuff just like
> the mscash patch. It uses DES.
Where does des.h come from, if it's not a dependency on an external
library? Does this oracle_fmt.c depend on another patch of yours? If
so, can you perhaps post an URL to a complete patch that would be
suitable for inclusion in contrib?
> I do not really understand how the bitsliced library works. Is it
> possible to use it on the oracle passwords?
I think so, but it'd be tricky since the number of DES encryptions to
perform appears to depend on candidate password lengths.
> Is it worth it?
It should result in a substantial speedup if used right, but this would
complicate the code.
--
Alexander Peslyak <solar at openwall.com>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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