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Date: Mon, 2 Jun 2008 17:36:00 +0100
From: "Larry Bonner" <larry.bonner1@...il.com>
To: john-users@...ts.openwall.com
Subject: Re: CUDA the Ripper
> Why? I disagree. Most of the high-level code can stay intact. In
> fact, for slow and/or salted hashes (when there are many salts), all of
> it can stay intact.
>
what i meant to say is, anyone who wants to load JTR onto the NVidia
cards is going to have to ADD alot of code using the CUDA api.
i was referring to Elcomsofts free md5 cracker in previous post, the
open source PoC is much slower than the closed source.
For example, PoC example, using 1 kernel
8600GT - ~30M k/s
8800GT - ~90M k/s
version 0.2, using 8 kernels
8600GT - ~64M k/s
8800GT - ~232M k/s
these results were all using "dumb" brute force.
using a dictionary or hybrid attack would degrade performance, since
you'd have to transfer more data between the host CPU and GPU.
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