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Message-ID: <9oldlq3345efxqgfepw51x2v.1432956242835@email.android.com>
Date: Fri, 29 May 2015 23:24:02 -0400
From: Alain Espinosa <alainesp@...ta.cu>
To: john-dev@...ts.openwall.com
Subject: Re: bitslice SHA-256
-------- Original message --------
From: magnum <john.magnum@...hmail.com>
Date:05/29/2015 7:59 PM (GMT-05:00)
To: john-dev@...ts.openwall.com
Cc:
Subject: Re: [john-dev] bitslice SHA-256
...What's the
main cause for this huge difference between normal SHA256 implemented in assembly versus intrinsics?
One thing that baffled me with Microsoft AVX2 intrinsics is that memory operations are the unaligned versions (vmovdqu and the like instead of vmovdqa), and the compiler know that it is working with _m256i, that is aligned to 32 bytes.
Regards,
Alain
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