| #!/usr/bin/env python |
| # Copyright 2016 The Chromium Authors |
| # |
| # 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 |
| # |
| # https://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 chain with 2 intermediates and one end entity certificate. The |
| root certificate has a pathlen:1 restriction. Ordinarily this would be an |
| invalid chain, however constraints on this trust anchor are not enforced.""" |
| |
| import sys |
| sys.path += ['../..'] |
| |
| import gencerts |
| |
| # Self-signed root certificate (used as trust anchor). |
| root = gencerts.create_self_signed_root_certificate('Root') |
| root.get_extensions().set_property('basicConstraints', |
| 'critical,CA:true,pathlen:1') |
| |
| # Intermediate 1 (no pathlen restriction). |
| intermediate1 = gencerts.create_intermediate_certificate('Intermediate1', root) |
| |
| # Intermediate 2 (no pathlen restriction). |
| intermediate2 = gencerts.create_intermediate_certificate('Intermediate2', |
| intermediate1) |
| |
| # Target certificate. |
| target = gencerts.create_end_entity_certificate('Target', intermediate2) |
| |
| chain = [target, intermediate2, intermediate1, root] |
| gencerts.write_chain(__doc__, chain, 'chain.pem') |
