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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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