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Date: Fri, 1 Feb 2013 07:24:22 +0400
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: NetNTLMv1

On Thu, Jan 31, 2013 at 06:36:22PM +0100, magnum wrote:
> This is now committed, as well as SIMD support. New Bull figures:

I am getting much better speeds; you might have run your benchmarks when
bull was under other load.

Anyhow, I've attached a patch that tries to speedup cmp_all() by use of
a bitmap.  This only makes sense when cmp_all() is called multiple times
per crypt_all()'s actual processing - that is, when cracking two or more
C/R pairs at once.  There's a check for that in the code.  Moreover, use
of the bitmap is automatically disabled when the C/R pair count reduces
to 1.

This does appear to provide some speedup, although not as much as I had
expected.

Alexander

View attachment "john-NETNTLM-bitmap.diff" of type "text/plain" (3382 bytes)

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