crypto: ghash - Add GHASH digest algorithm for GCM
GHASH is implemented as a shash algorithm. The actual implementation
is copied from gcm.c. This makes it possible to add
architecture/hardware accelerated GHASH implementation.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/Kconfig b/crypto/Kconfig
index f2002d8..0ae170e 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -290,6 +290,13 @@
gain performance compared with software implementation.
Module will be crc32c-intel.
+config CRYPTO_GHASH
+ tristate "GHASH digest algorithm"
+ select CRYPTO_SHASH
+ select CRYPTO_GF128MUL
+ help
+ GHASH is message digest algorithm for GCM (Galois/Counter Mode).
+
config CRYPTO_MD4
tristate "MD4 digest algorithm"
select CRYPTO_HASH