[CRYPTO] ccm: Added CCM mode

This patch adds Counter with CBC-MAC (CCM) support.
RFC 3610 and NIST Special Publication 800-38C were referenced.

Signed-off-by: Joy Latten <latten@austin.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 7 insertions, 0 deletions

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 7ad9711eec98..0d89f77428e5 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -220,6 +220,13 @@ config CRYPTO_GCM
           Support for Galois/Counter Mode (GCM) and Galois Message
           Authentication Code (GMAC). Required for IPSec.
 
+config CRYPTO_CCM
+        tristate "CCM support"
+        select CRYPTO_CTR
+        select CRYPTO_AEAD
+        help
+          Support for Counter with CBC MAC. Required for IPsec.
+
 config CRYPTO_CRYPTD
         tristate "Software async crypto daemon"
         select CRYPTO_BLKCIPHER