crypto: hmac - Prehash ipad/opad
authorHerbert Xu <herbert@gondor.apana.org.au>
Fri, 24 Jul 2009 07:18:41 +0000 (15:18 +0800)
committerHerbert Xu <herbert@gondor.apana.org.au>
Fri, 24 Jul 2009 07:18:41 +0000 (15:18 +0800)
This patch uses crypto_shash_export/crypto_shash_import to prehash
ipad/opad to speed up hmac.  This is partly based on a similar patch
by Steffen Klassert.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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