def Cmac.verify

bend-osdev-cipher-modes@0.1.0.0 · cmac.bend:85

import Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B
import bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend as M

85# whether tag is m's 16-byte MAC, compared with no early exit
86def Cmac.verify(~K: Data, ~enc: K -> M.CmBlock -> M.CmBlock, +k: K, m: B.Octets, tag: B.Octets) -> Bool:
87  M.cm.ct_eq(B.Octets.to_list(Cmac.mac(~K, ~enc, k, m)), B.Octets.to_list(tag))