1 files changed, 4 insertions, 0 deletions
diff --git a/lib/mac.h b/lib/mac.h
index 9dba8f89..5fc216fd 100644
--- a/lib/mac.h
+++ b/lib/mac.h
@@ -21,6 +21,7 @@
 #define ALG_SHA256		0x04
 #define ALG_SHA384		0x05
 #define ALG_SHA512		0x06
+#define ALG_HMAC		0x10
 #define ALG_HMAC_MD5		0x11
 #define ALG_HMAC_SHA1		0x12
 #define ALG_HMAC_SHA224		0x13
@@ -34,6 +35,9 @@
 #define HASH_STORAGE		sizeof(struct sha512_context)
 #define MAC_STORAGE		sizeof(struct hmac_context)
 
+/* This value is used by several IETF protocols for padding */
+#define HMAC_MAGIC		htonl(0x878FE1F3)
+
 /* Generic context used by hash functions */
 struct hash_context
 {