#!/usr/bin/env python3 # BlueKitchen GmbH (c) 2019 # pip3 install pycryptodomex from Cryptodome.Cipher import AES from Cryptodome.Hash import CMAC def aes_cmac(key, n): cobj = CMAC.new(key, ciphermod=AES) cobj.update(n) return cobj.digest() db_message = bytes.fromhex('010000280018020003280a0300002a04000328020500012a06000028011807000328200800052a090002290a0003280a0b00292b0c000328020d002a2b0e00002808180f000228140016000f1810000328a21100182a12000229130000290000140001280f1815000328021600192a'); db_hash_expected = bytes.fromhex('F1CA2D48ECF58BAC8A8830BBB9FBA990') db_hash_actual = aes_cmac(bytes(16), db_message); if db_hash_actual != db_hash_expected: print("Expected: " + db_hash_actual.hex()) print("Actual: " + db_hash_actual.hex())