Revision as of 13:23, 15 August 2014

Barbican integration

Barbican description

Barbican is a tenant aware key and secrets management service for cloud applications, including symmetric and asymmetric keys, raw secrets and support for public and private SSL certificates. See Barbican at Launchpad.

Description

Trove uses encryption/decryption for backups (if encryption enabled). For this workflow Trove uses:

• Algorithm: AES
• Mode: cbc
• Key lenght: 256
• Payload content type: application/octet-stream

For performing encyption/decryption Trove uses:

• openssl util

Justification/Benefits

Justification

Barbican designed to provide Secret delivery and storage. By the default, Barbican provides AES order with key length 256 bit and CBC mode.

Benefits

• Trove would no longer need to store backup encyption password in plain text guest configuration file (which seems to be a security issue). Same takes place for replication user password.
• Advanced OpenStack integration.

Impacts

Existing code will be refactored to extract Security workflow into it's own package:

• trove/security

Abstract layer for Security workflow will be proposed:

• BaseSecurityWorkflow
  • Implementation

  import abc
  import six
  @six.add_metaclass(abc.ABCMeta)
  class BaseSecurityWorkflow(object):
      @abc.abstractmethod
      def _create_key(self,
                                 name,
                                 alg='AES',
                                 bit_length=256,
                                 mode=None,
                                 payload_content_type=
                                 "application/octet-stream"):
               """
               Creates a key by given parameters
               """
      @abc.abstractmethod
      def get_backup_encyption_key(self):
               """Implements backup encryption password delivery."""
      @abc.abstractmethod
      def get_replication_user_key(self):
               """Implements replication user key delivery."""