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Date: Sat, 13 Jan 2007 12:21:50 +0300
From: Solar Designer <>
Subject: Re: NTLM patch performance

On Tue, Jan 09, 2007 at 09:51:58PM -0800, Alain Espinosa wrote:
> Celeron 3.00GHz, the test was 10 min long.

You've made sure that not a single hash got cracked during those 10
minutes, correct?

Also, since JtR "incremental" mode's overhead decreases over time,
10 minutes is in fact the reasonable minimum duration of such a

> Program                          1 hash                 10 hash
> ----------------------------------------------------------------------------------
> john_v1.7 nt_patch            1244K                  1181K

The number for 10 hashes is JtR's reported effective c/s divided by 10,

> ppa_v1.70                        4370K                  4600K
> saminside_v2.5.7.1         11360K                  5255K

...and what are the numbers for Simon's MMX/SSE2-enhanced NTLM support
patch?  I'd expect something like 5000K.

Alexander Peslyak <solar at>
GPG key ID: 5B341F15  fp: B3FB 63F4 D7A3 BCCC 6F6E  FC55 A2FC 027C 5B34 1F15 - bringing security into open computing environments

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