| #!/usr/bin/python |
| # Copyright (c) 2015 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Certificate chain where the target certificate contains an unknown X.509v3 |
| extension (OID=1.2.3.4) that is marked as critical.""" |
| |
| import sys |
| sys.path += ['../..'] |
| |
| import gencerts |
| |
| # Self-signed root certificate. |
| root = gencerts.create_self_signed_root_certificate('Root') |
| |
| # Intermediate certificate. |
| intermediate = gencerts.create_intermediate_certificate('Intermediate', root) |
| |
| # Target certificate (has unknown critical extension). |
| target = gencerts.create_end_entity_certificate('Target', intermediate) |
| target.get_extensions().add_property('1.2.3.4', |
| 'critical,DER:01:02:03:04') |
| |
| chain = [target, intermediate, root] |
| gencerts.write_chain(__doc__, chain, 'chain.pem') |
