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Date: Tue, 06 Mar 2012 23:14:30 +0100
From: Samuele Giovanni Tonon <samu@...uxasylum.net>
To: john-dev@...ts.openwall.com
Subject: Re: RAR format finally proper

On 03/06/12 23:02, magnum wrote:
> On 03/06/2012 10:56 PM, Samuele Giovanni Tonon wrote:
>> On 03/06/12 19:47, magnum wrote:
>>> I'll give it a try just to start learning OpenCL but I don't expect it
>>> to end up in something committable :)
>>>
>>> The current SHA1 code only does one block, right? I will need one more
>>> like the OpenSSL ones, with update().
>>
>> rather than the update() part which in the end is just an append, it's
>> missing the code for strings more than 64 byte long by changing properly
>> the 5 IV; need to say that from some test i did in C the update part
>> seems the one that is crucial in rar.
> 
> It seems http://royger.org/opencl/ has an optional version that "is
> prepared to run blocks longer than 512-bits". Hopefully that code is
> complete, I'll check it out later.

yes, that's the one i started from one year ago, it's quite clear code
tough not optimized :-)

cheers
Samuele


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