linux-kernel - Re: Accelerate GCM with PCLMULQDQ-NI

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20090329074326.GB11735@gondor.apana.org.au>
Date:	Sun, 29 Mar 2009 15:43:26 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Huang Ying <ying.huang@...el.com>
Cc:	Sebastian Andrzej Siewior <linux-crypto@...breakpoint.cc>,
	linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org
Subject: Re: Accelerate GCM with PCLMULQDQ-NI

On Wed, Mar 18, 2009 at 04:52:12PM +0800, Huang Ying wrote:
>
> To accelerate GCM with it, I make the following design:
> 
> 1. Implement ghash as an ahash algorithm, Use ghash in gcm
> implementation.
> 2. Provide a new implementation of ghash with PCLMULQDQ-NI.
> 
> What do you think about that?

Sounds OK to me.  I presume the choice of ahash instead of shash
is due to the use of XMM registers, just like AES?

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/