Table hbcrypto_SubCommand
	pad
 		op	enum(PadOp, "hbytes pad subcommand")
		v	hbv
		blocksz	obj
		meth	enum(PadMethodInfo, "pad method")
		...	methargs
 	blockcipher
 		op	enum(BlockCipherOp, "op")
		...	obj
 	hash
 		alg	enum(HashAlgInfo, "hash alg")
 		message	hb
 		=>	hb
 	hmac
 		alg	enum(HashAlgInfo, "hash alg for hmac")
 		message	hb
 		key	obj
 		?maclen	obj
 		=>	hb
	hash-prop
		prop	enum(HashAlgPropInfo, "prop")
		alg	enum(HashAlgInfo, "alg")
		=>	int

Table padmethodinfo PadMethodInfo
	pkcs5
		=>	int
	rfc2406
		nxthdr	obj
		=>	int

Table blockcipherop BlockCipherOp
	e	1
 		v	hbv
 		alg	enum(BlockCipherAlgInfo, "alg")
		key	obj
 		mode	enum(BlockCipherModeInfo, "mode")
 		?iv	hb
 		=>	hb
	d	0
 		v	hbv
 		alg	enum(BlockCipherAlgInfo, "alg")
		key	obj
 		mode	enum(BlockCipherModeInfo, "mode")
 		?iv	hb
 		=>	hb
	mac	-1
		msg	hb
		alg	enum(BlockCipherAlgInfo, "alg")
		key	obj
 		mode	enum(BlockCipherModeInfo, "mode")
		iv	hb
		=>	hb
	prop	-1
		prop	enum(BlockCipherPropInfo, "prop")
		alg	enum(BlockCipherAlgInfo, "alg")
		=>	int

EntryExtra BlockCipherOp
	int encrypt;