From: Herbert Xu <herbert@gondor.apana.org.au>
To: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Cc: linux-crypto@vger.kernel.org
Subject: Re: [PATCH] camellia: simplify key setup and CAMELLIA_ROUNDSM macro
Date: Wed, 14 Mar 2012 20:30:53 +1100 [thread overview]
Message-ID: <20120314093052.GA2847@gondor.apana.org.au> (raw)
In-Reply-To: <20120303115900.25935.68751.stgit@localhost6.localdomain6>
On Sat, Mar 03, 2012 at 01:59:00PM +0200, Jussi Kivilinna wrote:
> camellia_setup_tail() applies 'inverse of the last half of P-function' to
> subkeys, which is unneeded if keys are applied directly to yl/yr in
> CAMELLIA_ROUNDSM.
>
> Patch speeds up key setup and should speed up CAMELLIA_ROUNDSM as applying
> key to yl/yr early has less register dependencies.
>
> Quick tcrypt camellia results:
> x86_64, AMD Phenom II, ~5% faster
> x86_64, Intel Core 2, ~0.5% faster
> i386, Intel Atom N270, ~1% faster
>
> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Patch applied. Thanks!
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
prev parent reply other threads:[~2012-03-14 9:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-03 11:59 [PATCH] camellia: simplify key setup and CAMELLIA_ROUNDSM macro Jussi Kivilinna
2012-03-14 9:30 ` Herbert Xu [this message]
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