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Date: Sun, 13 Sep 2015 10:21:46 -0500
From: JimF <>
Subject: Re: experiment with functions to reject computed hashes

On 9/13/2015 8:06 AM, Solar Designer wrote:
> I think most speedup when cracking few hashes is possible through 
> reversing of steps, which we're not doing yet. Until we do that, it's 
> premature to optimize hash comparisons for that same special case.

Actually, we are at this time (bleeding), Magnum has been doing the work 
on this. There may be more gain which we can wring out of the problem, 
but he is already seeing some pretty nice returns. However, only helpful 
on non-key stretched hashes, but it does gain significant improvements.

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