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Date: Mon, 27 Feb 2012 18:57:40 -0500
From: Rich Rumble <>
Subject: Re: Re: [JtR PATCH] Support rar's -p mode by spawning
 external unrar process.

On Mon, Feb 27, 2012 at 5:27 PM, magnum <> wrote:
> On 02/27/2012 11:17 PM, Samuele Giovanni Tonon wrote:
>> On 02/27/12 22:07, magnum wrote:
>>> 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.
> Cool, then I'll have another look at CRC in the meantime.
I've made the suggestion before, can't remember to who... but 7zip
or p7zip (linux) understands Rar as well as Zip passworded archives.
I don't know if their libraries or documentation would help. I'd also like
to see 7z passworded archive support added.

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