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Message-ID: <CABob6iqxkhZaL-UDbXcoDY-x8gyCHPdsGw0szQbD1a70co-K7Q@mail.gmail.com>
Date: Thu, 9 May 2013 22:10:32 +0200
From: Lukas Odzioba <lukas.odzioba@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: zip-opencl
2013/5/3 Dhiru Kholia <dhiru.kholia@...il.com>:
> On Fri, May 3, 2013 at 4:48 PM, Solar Designer <solar@...nwall.com> wrote:
>> On Fri, May 03, 2013 at 03:17:17PM +0530, Dhiru Kholia wrote:
>>> This optimization is now implemented in the CPU "zip" format.
>>> However, we would need to revert it in case we decide to implement
>>> decryption and decompression later on.
>>
>> No, in that case we'd need to compute the rest of PBKDF2 output in
>> cmp_exact(). It's quite dumb to compute the full PBKDF2 output right
>> away simply because we need it once in 65536 passwords tested.
>
> I understand now. The two byte verifier will act as the fast check.
Dhiru, are you working/planning to work on that?
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