Re: Accelerate GCM with PCLMULQDQ-NI

[Herbert Xu]

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@xxxxxxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/