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Message-ID: <AANLkTimSjPOQU7imJ2EwftiLUqh42W71_Nzd+eu20TtK@mail.gmail.com>
Date: Tue, 15 Mar 2011 16:35:36 -0600
From: RB <aoz.syn@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: Speedup of x86 .S build of raw-sha1 format
On Tue, Mar 15, 2011 at 16:28, jfoug <jfoug@....net> wrote:
> Here is about a 10% speedup. A very trivial change.
[snip]
> + //memset(saved_key, 0, sizeof(saved_key));
> + memset(saved_key, 0, 64*MMX_COEF);
For the memory-management poor but intellectually curious on the list,
can you explain why? Is it just because we avoid sizeof() in what I
presume is a tight loop? What happens if saved_key is larger than
64*MMX_COEF, or can that even happen?
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