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Date: Fri, 3 May 2013 17:03:09 +0530
From: Dhiru Kholia <dhiru.kholia@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: zip-opencl
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
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