linux-kernel - Re: [PATCH] crypto: add test vectors for skein256/512/1024

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Message-ID: <20081105212748.GA4990@Chamillionaire.breakpoint.cc>
Date:	Wed, 5 Nov 2008 22:27:48 +0100
From:	Sebastian Andrzej Siewior <bigeasy@...akpoint.cc>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	herbert@...dor.apana.org.au, davem@...emloft.net,
	linux-crypto@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] crypto: add test vectors for skein256/512/1024

* Jeff Garzik | 2008-11-02 20:44:40 [-0500]:

> Sebastian Andrzej Siewior wrote:
>> I grabed them from http://www.schneier.com/skein.html. The last test 
>> vector
>> (3) in every category is currently deactivated because it failed always.
>> It is unlikely that I made a type because I copy+pasted the tables + vim
>> magiced them. So maybe code may missbehave on requests lengths which are
>> not a multiple of 4 or the vectors can not be used due to some other
>> limitations that I've overseen.

Okay, that was a false positive :)
The "untouched" reference implementation outputs the same hash. The
additional information (tree, ...) is part of the third argument in
Skein_XXX_InitExt() which isn't used. So we can safely drop the third
test vector.

>
> 	Jeff

Sebastian
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