-# hash
-# alg enum(HashAlgInfo, "hash alg")
-# message hb
-# => hb
-# hmac
-# alg enum(HashAlgInfo, "hash alg for hmac")
-# message hb
-# key hb
-# maclen int
-# => hb
+ hash
+ alg enum(HashAlgInfo, "hash alg")
+ message hb
+ => hb
+ hmac
+ alg enum(HashAlgInfo, "hash alg for hmac")
+ message hb
+ key obj
+ ?maclen obj
+ => hb