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authorHerbert Xu <herbert@gondor.apana.org.au>2009-07-11 18:16:16 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2009-07-14 12:58:02 +0800
commitbbbee4679afd7c29a58087f133ffe241597f3144 (patch)
treeb49da1e7b303948fc1d39580df375071c1703494 /drivers/crypto/Kconfig
parent113adefc73c291f93f875fe515a46d8f76252fff (diff)
downloadlinux-linaro-stable-bbbee4679afd7c29a58087f133ffe241597f3144.tar.gz
crypto: padlock - Switch sha to shash
This patch converts the padlock-sha implementation to shash. In doing so the existing mechanism of storing the data until final is no longer viable as we do not have a way of allocating data in crypto_shash_init and then reliably freeing it. This is just as well because a better way of handling the problem is to hash everything but the last chunk using normal sha code and then provide the intermediate result to the padlock device. This is good enough because the primary application of padlock-sha is IPsec and there the data is laid out in the form of an hmac header followed by the rest of the packet. In essence we can provide all the data to the padlock as the hmac header only needs to be hashed once. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/Kconfig')
-rw-r--r--drivers/crypto/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 5b27692372bf..1bb4b7fe4585 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -13,7 +13,6 @@ if CRYPTO_HW
config CRYPTO_DEV_PADLOCK
tristate "Support for VIA PadLock ACE"
depends on X86 && !UML
- select CRYPTO_ALGAPI
help
Some VIA processors come with an integrated crypto engine
(so called VIA PadLock ACE, Advanced Cryptography Engine)
@@ -39,6 +38,7 @@ config CRYPTO_DEV_PADLOCK_AES
config CRYPTO_DEV_PADLOCK_SHA
tristate "PadLock driver for SHA1 and SHA256 algorithms"
depends on CRYPTO_DEV_PADLOCK
+ select CRYPTO_HASH
select CRYPTO_SHA1
select CRYPTO_SHA256
help