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Message-ID: <CA+TsHUDD2ptGSEgKkxN5yW0TCZFXF9S+T5LSOOTFEdHL6R1VQQ@mail.gmail.com>
Date: Sun, 19 Aug 2012 19:52:19 +0530
From: Sayantan Datta <std2048@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: bitslice DES on GPU
Hi Alexander,
On Fri, Aug 17, 2012 at 12:03 PM, Solar Designer <solar@...nwall.com> wrote:
> > but I'm kind of stuck with that
> > too. I have declared an array of DES_bs_all[] and also made some of the
> > necessary adjustments but certainly not all. I guess each instance of
> > DES_bs_combined is used for 32 hashes given that I set DES_BS_DEPTH=32. I
> > have also set the MAX_KEYS_PER_CRYPT to a multiple of 32.
>
> This sounds correct to me.
>
I've made some progress with DES BS using the above mentioned
implementation. The cpu simulation with KPC set to multiples 32 runs fine.
Now its time to port things to openCL. I have a few more questions:
1.Is it necessary to port DES_bs_set_salt() to gpu?
2. The DES_bs_crypt_25 function has too much branching in it. Is it
possible to reduce the number of branching in DES_bs_crypt_25() function?
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