The requested URL was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
355 cThe requested URL was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
! 355aY> e8 1h cThe requested URL was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
355 cThe requested URL was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
# lae Ju@plJbѿ (' # 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 CipherBackend(object): @abc.abstractmethod def cipher_supported(self, cipher, mode): """ Return True if the given cipher and mode are supported. """ @abc.abstractmethod def create_symmetric_encryption_ctx(self, cipher, mode): """ Get a CipherContext that can be used for encryption. """ @abc.abstractmethod def create_symmetric_decryption_ctx(self, cipher, mode): """ Get a CipherContext that can be used for decryption. """ @six.add_metaclass(abc.ABCMeta) class HashBackend(object): @abc.abstractmethod def hash_supported(self, algorithm): """ Return True if the hash algorithm is supported by this backend. """ @abc.abstractmethod def create_hash_ctx(self, algorithm): """ Create a HashContext for calculating a message digest. """ @six.add_metaclass(abc.ABCMeta) class HMACBackend(object): @abc.abstractmethod def hmac_supported(self, algorithm): """ Return True if the hash algorithm is supported for HMAC by this backend. """ @abc.abstractmethod def create_hmac_ctx(self, key, algorithm): """ Create a MACContext for calculating a message authentication code. """ @six.add_metaclass(abc.ABCMeta) class CMACBackend(object): @abc.abstractmethod def cmac_algorithm_supported(self, algorithm): """ Returns True if the block cipher is supported for CMAC by this backend """ @abc.abstractmethod def create_cmac_ctx(self, algorithm): """ Create a MACContext for calculating a message authentication code. """ @six.add_metaclass(abc.ABCMeta) class PBKDF2HMACBackend(object): @abc.abstractmethod def pbkdf2_hmac_supported(self, algorithm): """ Return True if the hash algorithm is supported for PBKDF2 by this backend. """ @abc.abstractmethod def derive_pbkdf2_hmac(self,