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crypto: ghash - Add GHASH digest algorithm for GCM

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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>
This commit is contained in:
Huang Ying
2009-08-06 15:32:38 +10:00
committed by Herbert Xu
parent cbdcf80d8b
commit 2cdc6899a8
3 changed files with 178 additions and 0 deletions
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crypto/Kconfig
+7
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@@ -290,6 +290,13 @@ config CRYPTO_CRC32C_INTEL
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