encrypt	descbc(2,64,64,64,64)
encrypt	3descbc(3,64,192,192,192)
encrypt	rc5(4,64,128,40,2040)
encrypt	null(11)
encrypt	aescbc(12,128,128,128,256)
auth md5(2,96)    # hmac is implicit in current implementation
auth sha1(3,96)   # hmac is implicit in current implementation