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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 trusted root. The intermediate | |
7 restricts the EKU to clientAuth, and the target has serverAuth + | |
8 clientAuth. Verification is expected to fail when requesting serverAuth.""" | |
9 | |
10 import sys | |
11 sys.path += ['..'] | |
12 | |
13 import common | |
14 | |
15 # Self-signed root certificate (used as trust anchor). | |
16 root = common.create_self_signed_root_certificate('Root') | |
17 | |
18 # Intermediate certificate. | |
19 intermediate = common.create_intermediate_certificate('Intermediate', root) | |
20 intermediate.get_extensions().set_property('extendedKeyUsage', | |
21 'clientAuth') | |
22 | |
23 # Target certificate. | |
24 target = common.create_end_entity_certificate('Target', intermediate) | |
25 target.get_extensions().set_property('extendedKeyUsage', | |
26 'serverAuth,clientAuth') | |
27 | |
28 chain = [target, intermediate, root] | |
29 common.write_chain(__doc__, chain, 'chain.pem') | |
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