def METHOD_NAME(self, backend):
    key = b"2b7e151628aed2a6abf7158809cf4f3c"
    cmac = CMAC(AES(key), backend)
    cmac.update(b"6bc1bee22e409f96e93d7e117393172a")
    with pytest.raises(InvalidSignature):
        cmac.verify(b"foobar")