dec8b78606ebd5f309c38f2fb10196ce996dd18d - arm/linux

commit	dec8b78606ebd5f309c38f2fb10196ce996dd18d	[log] [tgz]
author	Herbert Xu <herbert@gondor.apana.org.au>	Sun Nov 02 21:38:11 2008 +0800
committer	Herbert Xu <herbert@gondor.apana.org.au>	Thu Dec 25 11:01:30 2008 +1100
tree	005ef526f1b0e953a3a57e6c991e0921fcd5234b
parent	3b2f6df08258e2875f42bd630eece7e7241a053b [diff]

crypto: hash - Add import/export interface

It is often useful to save the partial state of a hash function
so that it can be used as a base for two or more computations.

The most prominent example is HMAC where all hashes start from
a base determined by the key.  Having an import/export interface
means that we only have to compute that base once rather than
for each message.

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

crypto/ahash.c[diff]
crypto/shash.c[diff]
include/crypto/hash.h[diff]
include/crypto/internal/hash.h[diff]
include/linux/crypto.h[diff]

5 files changed

tree: 005ef526f1b0e953a3a57e6c991e0921fcd5234b