linux-kernel - Re: Crypto Update for 2.6.38

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Date:	Fri, 7 Jan 2011 01:02:25 +0200
From:	Mihai Donțu <mihai.dontu@...il.com>
To:	Pavel Roskin <proski@....org>
Cc:	Herbert Xu <herbert@...dor.apana.org.au>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"David S. Miller" <davem@...emloft.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Crypto Mailing List <linux-crypto@...r.kernel.org>
Subject: Re: Crypto Update for 2.6.38

On Thursday 06 January 2011 23:46:02 Pavel Roskin wrote:
> On 01/06/2011 04:16 PM, Herbert Xu wrote:
> > This is also why only hash and skcipher are supported as they
> > are the main algorithm types supported by teh current async
> > drivers in the kernel.
> 
> Are there any chances AEAD will be supported?  Is the API extendable to
> allow that?
> 
> If I remember correctly, the original patch was simply a port of FreeBSD
> /dev/crypto, which doesn't support AEAD.

If it's meant to work like the FreeBSD /dev/crypto, then maybe this[1] paper 
is worth mentionning, which includes some performance numbers. There was a 
single thing that drew my attention, from "Drawbacks and problems [of 
userspace crypto]": "Lots of scary code-duplication".

[1] http://www.paeps.cx/pubs/crypto_acceleration/slides.pdf

-- 
Mihai Donțu
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