text: # Copyright (c) 2014 The Johns Hopkins University/Applied Physics Laboratory
  # All Rights Reserved.
  #
  #    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 Cert(object):
      """Base class to represent all certificates."""
  
      @abc.abstractmethod
      def get_certificate(self):
          """Returns the certificate."""
          pass
  
      @abc.abstractmethod
      def get_intermediates(self):
          """Returns the intermediate certificates as a list."""
          pass
  
      @abc.abstractmethod
      def get_private_key(self):
          """Returns the private key for the certificate."""
          pass
  
      @abc.abstractmethod
      def get_private_key_passphrase(self):
          """Returns the passphrase for the private key."""
          pass
  