crypto: add CMAC support to CryptoAPI

Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI.

This work is based on Tom St Denis' earlier patch,
 http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2

Cc: Tom St Denis <tstdenis@elliptictech.com>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 11 insertions, 0 deletions

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 6cc27f111551..c1142f31a00c 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -283,6 +283,17 @@ config CRYPTO_XTS
 
 comment "Hash modes"
 
+config CRYPTO_CMAC
+        tristate "CMAC support"
+        select CRYPTO_HASH
+        select CRYPTO_MANAGER
+        help
+          Cipher-based Message Authentication Code (CMAC) specified by
+          The National Institute of Standards and Technology (NIST).
+
+          https://tools.ietf.org/html/rfc4493
+          http://csrc.nist.gov/publications/nistpubs/800-38B/SP_800-38B.pdf
+
 config CRYPTO_HMAC
         tristate "HMAC support"
         select CRYPTO_HASH