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Message-ID: <20120403225057.GA18551@openwall.com>
Date: Wed, 4 Apr 2012 02:50:57 +0400
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: Cracking Office 2007 files with JtR!
On Mon, Apr 02, 2012 at 09:04:52PM +0530, Dhiru Kholia wrote:
> Performance on Atom(TM) CPU N270,
>
> $ ../run/john -format=office -t
> Benchmarking: Office [32/32]... DONE
> Raw: 30.3 c/s real, 30.3 c/s virtual
On one core in FX-8120 (presumably at 4.5 GHz):
Benchmarking: Office [32/64]... DONE
Raw: 136 c/s real, 136 c/s virtual
Indeed, making use of our SIMD implementation of SHA-1 will speed this
up a lot.
> (Slightly better than RAR's performance).
Yes, except for the lack of OpenMP.
AES-NI engine not available
Benchmarking: RAR3 [32/64]... (8xOMP) DONE
Raw: 403 c/s real, 50.6 c/s virtual
(The CPU has AES-NI, but apparently the installed OpenSSL does not.)
Dhiru, I think the code that you have in office_fmt_plug.c: set_salt()
should be in get_salt() instead. This won't significantly affect
performance since the extra-slow stuff is elsewhere anyway, though.
Alexander
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