linux-kernel - Re: [RFC 2/7] crypto: Use GHASH digest algorithm in GCM

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Message-ID: <20090622020305.GA7843@gondor.apana.org.au>
Date:	Mon, 22 Jun 2009 10:03:05 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Huang Ying <ying.huang@...el.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>
Subject: Re: [RFC 2/7] crypto: Use GHASH digest algorithm in GCM

On Mon, Jun 22, 2009 at 09:41:16AM +0800, Huang Ying wrote:
>
> Can crypto_alloc_ahash("ghash",...) select among different ghash
> implementation automatically based on priority? I think
> crypto_alloc_ablkcipher("cbc(aes)",...) can select among different AES
> implementation automatically. They are different?

Yes it will select the highest priority implementation of ghash.
Adding it as an extra parameter would allow the user to specify
an implementation that is not necessarily the one with the highest
priority.

Cheers,
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