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| 1 #!/usr/bin/python | |
| 2 # Copyright (c) 2017 The Chromium Authors. All rights reserved. | |
| 3 # Use of this source code is governed by a BSD-style license that can be | |
| 4 # found in the LICENSE file. | |
| 5 | |
| 6 """Certificate chain with 1 intermediate and a trust anchor. The trust anchor | |
| 7 has an EKU that restricts it to clientAuth. Verification is expected to fail as | |
| 8 the end-entity is verified for serverAuth, and the trust anchor enforces | |
| 9 constraints.""" | |
| 10 | |
| 11 import sys | |
| 12 sys.path += ['..'] | |
| 13 | |
| 14 import common | |
| 15 | |
| 16 # Self-signed root certificate (used as trust anchor) with non-CA basic | |
| 17 # constraints. | |
| 18 root = common.create_self_signed_root_certificate('Root') | |
| 19 root.get_extensions().set_property('extendedKeyUsage', 'clientAuth') | |
| 20 | |
| 21 # Intermediate certificate. | |
| 22 intermediate = common.create_intermediate_certificate('Intermediate', root) | |
| 23 | |
| 24 # Target certificate. | |
| 25 target = common.create_end_entity_certificate('Target', intermediate) | |
| 26 | |
| 27 chain = [target, intermediate, root] | |
| 28 common.write_chain(__doc__, chain, 'chain.pem') | |
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