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Date: Mon, 25 Jun 2012 18:51:52 -0700
From: Bit Weasil <bitweasil@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: phpass OpenCL and CUDA

Have fun against hashcat... and if you do beat him out, I'd suggest *not*
advertising it.  This only serves to light a fire under him and he releases
a beta that's faster.  I've done this a few times...

On Mon, Jun 25, 2012 at 6:50 PM, Lukas Odzioba <lukas.odzioba@...il.com>wrote:

> 2012/6/26 Solar Designer <solar@...nwall.com>:
> > On Tue, Jun 26, 2012 at 03:32:27AM +0200, Lukas Odzioba wrote:
> >> 2012/6/26 Solar Designer <solar@...nwall.com>:
> >> > 1. There's a function called "cuda_md5" - rename it.
> >> >
> >> > 2. Make use of rotate() and bitselect().
> >> I'll send fix for that in a moment. My target is to make vectorized
> >> code work properly so even if code is dirty it should not stay there
> >> for long.
> >
> > Sure.  Yet the non-vectorized code is to stay for jumbo-6, right?
> Yes.
> >> > Are we releasing with these lower speeds?
> >> Yes, there were no any major changes. Lower speeds are because test
> >> vector change.
> >> Previously we're testing just one password, now 15 passwords with
> >> increasing length.
> >
> > I think the increasing lengths are only in the CUDA code, right?
> > Thus, the lower OpenCL speed is solely from the reverted code, right?
> Yes.
> > Do you happen to know what password lengths the published hashcat speeds
> > are for?
> I do not know, but I'll check that later. I am assuming you're curious
> more about AMD speeds?
>
> Lukas
>

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