Re: Accelerate GCM with PCLMULQDQ-NI

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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,
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