| #!/usr/bin/python |
| # Copyright (c) 2017 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 with 1 intermediate and a trust anchor. The trust anchor |
| has an EKU that restricts it to clientAuth. Verification is expected to fail as |
| the end-entity is verified for serverAuth, and the trust anchor enforces |
| constraints.""" |
| |
| import common |
| |
| # Self-signed root certificate (used as trust anchor) with non-CA basic |
| # constraints. |
| root = common.create_self_signed_root_certificate('Root') |
| root.get_extensions().set_property('extendedKeyUsage', 'clientAuth') |
| |
| # Intermediate certificate. |
| intermediate = common.create_intermediate_certificate('Intermediate', root) |
| |
| # Target certificate. |
| target = common.create_end_entity_certificate('Target', intermediate) |
| |
| chain = [target, intermediate] |
| trusted = common.TrustAnchor(root, constrained=True) |
| time = common.DEFAULT_TIME |
| key_purpose = common.KEY_PURPOSE_SERVER_AUTH |
| verify_result = False |
| errors = """----- Certificate i=2 ----- |
| ERROR: The extended key usage does not include server auth |
| |
| """ |
| |
| common.write_test_file(__doc__, chain, trusted, time, key_purpose, |
| verify_result, errors) |
