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Date: Mon, 7 Jan 2013 19:22:54 -0500
From:  <jfoug@....net>
To: john-dev@...ts.openwall.com
Cc: Solar Designer <solar@...nwall.com>
Subject: Re: mask-mode speed

---- Solar Designer <solar@...nwall.com> wrote: 
> Actually, we can do a bit faster.

I put your code in, and the speed did increase, some.  It went from 12410K/s to 12610K/s.  A little faster but still a huge overhead for a fast format.  But this is still about 1/2 the speed of natural CRC32 (on this PC), and about 6x the overhead of the current mask mode code.

Again, the 'OT' for this post is about mask mode, and it certainly IS much faster than even existing incremental, and is very simple code, and hopefully will be very easy to implement within the GPU.   A less overhead than even incremental will be very nice, when we get to ultra fast formats, like the simple formats in GPU.


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