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Message-ID: <BLU0-SMTP422FFAE48FAD050AFE32C10FD060@phx.gbl>
Date: Thu, 7 Feb 2013 08:35:36 +0100
From: Frank Dittrich <frank_dittrich@...mail.com>
To: john-dev@...ts.openwall.com
Subject: Re: mschapv2-bitsliced conversion- openmp support
On 02/07/2013 04:47 AM, Solar Designer wrote:
> On Wed, Feb 06, 2013 at 07:12:34AM -0800, deepika dutta wrote:
>> Actually, I worked on coverting the DES_bs_crypt_plain(), which I had added to do single DES encryption, into SSE implementation. I have added this function into the x86-sse.S file. Since the code in this file was in assembly language, I tried some copy-pasting from previous code and added some assembly code myself to get the single DES encryption working. I compiled this program using linux-x86-64 option, everything is working fine and the latest banchmarks for bitsliced implementation are given below. You can test for yourself. The patch is attached.
>
> This is cool, but (un)fortunately we've just revised the MSCHAPv2 format
> such that it does not depend on speed of DES encryption anymore - see
> the "NetNTLMv1 and MSCHAPv2" thread in here. So I'm afraid there's no
> point in introducing your changes to that format now (nor would they
> apply to the revised code).
But the changes should apply to the new mschapv2-naive format which
basically is the renamed old mschapv2 format, intended for shorter
cracking runs, because it loads hashes faster than the new mschapv2.
Frank
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