|
Server : Apache/2.4.18 (Ubuntu) System : Linux canvaswebdesign 3.13.0-71-generic #114-Ubuntu SMP Tue Dec 1 02:34:22 UTC 2015 x86_64 User : oppastar ( 1041) PHP Version : 7.0.33-0ubuntu0.16.04.15 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, Directory : /usr/lib/python2.7/dist-packages/cryptography/hazmat/primitives/kdf/ |
Upload File : |
# 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
@six.add_metaclass(abc.ABCMeta)
class KeyDerivationFunction(object):
@abc.abstractmethod
def derive(self, key_material):
"""
Deterministically generates and returns a new key based on the existing
key material.
"""
@abc.abstractmethod
def verify(self, key_material, expected_key):
"""
Checks whether the key generated by the key material matches the
expected derived key. Raises an exception if they do not match.
"""