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Message-ID: <20120619131130.GC7123@cmpxchg8b.com>
Date: Tue, 19 Jun 2012 15:11:30 +0200
From: Tavis Ormandy <taviso@...xchg8b.com>
To: john-dev@...ts.openwall.com
Subject: Re: [patch] optional new raw sha1 implemetation
On Tue, Jun 19, 2012 at 05:03:44PM +0400, Solar Designer wrote:
> > I noticed an easy way to fix it is just to check if get_hash() ==
> > binary_hash() first
>
> This sounds very wrong to me. When get_hash() is worthwhile to use (as
> determined by the thresholds), John will use it instead of cmp_all() on
> its own - with no magic needed on your part.
>
> Perhaps there's some context to this that I am missing, though?
>
I don't think so, the performance impact is indeed very small, 0.1%
sounds right. Still, I want that 0.1% :-)
Tavis.
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