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# Copyright (c) 2014 Rackspace US, Inc
# 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.
Certificate Generator API
import abc
import six
class CertGenerator(object):
"""Base Cert Generator Interface
A Certificate Generator is responsible for generating private keys,
generating CSRs, and signing TLS certificates.
def sign_cert(self, csr, validity):
"""Generates a signed certificate from the provided CSR
This call is designed to block until a signed certificate can be
:param csr: A Certificate Signing Request
:param validity: Valid for <validity> seconds from the current time
:return: PEM Encoded Signed certificate
:raises Exception: If certificate signing fails
def generate_cert_key_pair(self, cn, validity, bit_length, passphrase):
"""Generates a private key and certificate pair
:param cn: Common name to use for the Certificate
:param validity: Validity period for the Certificate
:param bit_length: Private key bit length
:param passphrase: Passphrase to use for encrypting the private key
:return: octavia.certificates.common.Cert representation of the
certificate data
:raises Exception: If generation fails