[PATCH v2 4/4] crypto: kdf - enable compilation

[Stephan Mueller <smueller@chronox.de>]

Include KDF into Kconfig and Makefile for compilation.

Signed-off-by: Stephan Mueller <smueller@chronox.de>
---
 crypto/Kconfig  | 7 +++++++
 crypto/Makefile | 1 +
 2 files changed, 8 insertions(+)

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 1d33beb..89c1891 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -349,6 +349,13 @@ config CRYPTO_KEYWRAP
 	  Support for key wrapping (NIST SP800-38F / RFC3394) without
 	  padding.
 
+config CRYPTO_KDF
+	tristate "Key Derivation Function (SP800-108)"
+	select CRYPTO_RNG
+	help
+	  Support for KDF compliant to SP800-108. All three types of
+	  KDF specified in SP800-108 are implemented.
+
 comment "Hash modes"
 
 config CRYPTO_CMAC
diff --git a/crypto/Makefile b/crypto/Makefile
index 4f4ef7e..7f7c4be 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -72,6 +72,7 @@ obj-$(CONFIG_CRYPTO_LRW) += lrw.o
 obj-$(CONFIG_CRYPTO_XTS) += xts.o
 obj-$(CONFIG_CRYPTO_CTR) += ctr.o
 obj-$(CONFIG_CRYPTO_KEYWRAP) += keywrap.o
+obj-$(CONFIG_CRYPTO_KDF) += kdf.o
 obj-$(CONFIG_CRYPTO_GCM) += gcm.o
 obj-$(CONFIG_CRYPTO_CCM) += ccm.o
 obj-$(CONFIG_CRYPTO_CHACHA20POLY1305) += chacha20poly1305.o
-- 
2.5.5