Source code for cryptography.hazmat.primitives.mac

# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.

from __future__ import absolute_import, division, print_function

import abc

import six

[docs]@six.add_metaclass(abc.ABCMeta) class MACContext(object):
[docs] @abc.abstractmethod def update(self, data): """ Processes the provided bytes. """
[docs] @abc.abstractmethod def finalize(self): """ Returns the message authentication code as bytes. """
[docs] @abc.abstractmethod def copy(self): """ Return a MACContext that is a copy of the current context. """
[docs] @abc.abstractmethod def verify(self, signature): """ Checks if the generated message authentication code matches the signature. """