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Date: Sun, 24 Jul 2011 03:43:41 +0400
From: Solar Designer <>
Subject: Re: zip patch omp support

On Thu, Jul 21, 2011 at 05:43:06PM +0530, Dhiru Kholia wrote:
> Applies on top of JtR 1.7.8-jumbo-2 patchset.

Revision of the code as merged into my tree (with OpenSSL version checks
removed) on dual E5420 (8 cores at 2.5 GHz), linux-x86-64, gcc 4.5.0:

Benchmarking: zip [32/64]... (8xOMP) DONE
Raw:    3952 c/s real, 492 c/s virtual

At this speed, it'll find some probable password in about 10 seconds...

We really need to do something about the false positives.  Perhaps look
for a way to determine if the decryption is correct or not without a
full decompression engine?  There got to be patterns beyond the 16-bit


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