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Date: Wed, 15 Dec 2010 17:27:42 -0800
From: Dan Tentler <>
Subject: Re: Re: JtR/OpenMP against Gawker passwords

I've been playing with this myself on my mac - I have an I7 core machine 
and I've been trying to use the mpi patches to make it play nicely. Ive 
had limited success - I tried cracking the gawker list for two days and 
got 3 passwords - this of course was with zero tuning .. just pointing 
jtr 1.7.6 with some patches at the files and using MPI. I'm not %100 I'm 
doing it right.

But a question for SolarDesigner - does your roadmap for jtr define any 
distributed capabilities? I suppose what I'm getting at is "are we stuck 
with mpi"?


> On Wed, 2010-12-15 at 23:52 +0300, Solar Designer wrote:
>> Hi,
>> Here's a curious blog post by Jon Oberheide:
>> People are actually starting to make use of the OpenMP support/patches
>> in/for recent versions of John the Ripper.  That's nice.  In this case,
>> Jon ran JtR on an 8-core Xeon X5460 machine (two CPU chips) doing over
>> 20M c/s at the "many salts" test.  399380 out of 748039 password hashes
>> got cracked.

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