linux-kernel - Re: [PATCH] crypto: AEAD: add check for presence of auth tag

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Message-ID: <1656062.b6mnFyMzhb@tachyon.chronox.de>
Date:	Mon, 05 Jan 2015 11:53:38 +0100
From:	Stephan Mueller <smueller@...onox.de>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	'LKML' <linux-kernel@...r.kernel.org>, linux-crypto@...r.kernel.org
Subject: Re: [PATCH] crypto: AEAD: add check for presence of auth tag

Am Montag, 5. Januar 2015, 21:39:57 schrieb Herbert Xu:

Hi Herbert,

> On Mon, Jan 05, 2015 at 11:26:48AM +0100, Stephan Mueller wrote:
> > Could you please help me understand where that check should be and what
> > should be done at the crypto API level?
> 
> All I was asking for is a length check like the one at the top
> of crypto_authenc_decypt.

Could you please check: I am unable to find the function.

Note, there is no size parameter provided in crypto_aead_decrypt. To obtain 
the size, I would need to walk the scatterlists, no?
> 
> Cheers,


-- 
Ciao
Stephan
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