keystone/keystone/credential/providers/core.py
Werner Mendizabal e10811cffd Create a fernet credential provider
This commit introduces a fernet provider for the credential API. This new
provider isn't actually wired up to the existing credential implementation, so
it's functionality isn't exposed. We'll do that in a subsequent patch.

bp credential-encryption
Change-Id: I217004c5fb94191d397059b1333bebd385792fb7
2016-08-18 16:07:13 +00:00

39 lines
1.2 KiB
Python

# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import abc
import six
@six.add_metaclass(abc.ABCMeta)
class Provider(object):
"""Interface for credential providers that support encryption."""
@abc.abstractmethod
def encrypt(self, credential):
"""Encrypt a credential.
:param str credential: credential to encrypt
:returns: encrypted credential str
:raises: keystone.exception.CredentialEncryptionError
"""
@abc.abstractmethod
def decrypt(self, credential):
"""Decrypt a credential.
:param str credential: credential to decrypt
:returns: credential str as plaintext
:raises: keystone.exception.CredentialEncryptionError
"""