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Date: Mon, 27 Feb 2012 23:17:53 +0100
From: Samuele Giovanni Tonon <>
Subject: Re: Re: [JtR PATCH] Support rar's -p mode by spawning
 external unrar process.

On 02/27/12 22:07, magnum wrote:
> On 02/27/2012 08:28 AM, Dhiru Kholia wrote:
>> Hi magnum,
>> Until someone figures out how to crack rar's -p mode, the attached
>> patch should work. It spawns unrar process for RAR files encrypted
>> with -p mode.

> But as far as I can see it should be fairly simple to do this in OpenCL
> (and cRARk already do). It's just a whole lot of SHA-1 updates, half a
> million per key. I'm puzzled that you [gpu guys] struggle with bandwidth
> problems for raw formats when there are low hanging fruit like this ;-)

believe it or not i'm working on it since i ended mysql-sha1,

problem at the moment rise with all those pesky pwd+salt+serial, i'm
trying to figure out a smart way to add and encode without having to go
char by char :-)
that is the real time killer even on the gpu.


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