| #!/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 with 1 intermediate, a trusted root, and a target |
| certificate that is not a CA, and yet has the keyCertSign bit set. Verification |
| is expected to fail, since keyCertSign should only be asserted when CA is |
| true.""" |
| |
| import common |
| |
| # Self-signed root certificate (used as trust anchor). |
| root = common.create_self_signed_root_certificate('Root') |
| |
| # Intermediate certificate. |
| intermediate = common.create_intermediate_certificate('Intermediate', root) |
| |
| # Target certificate (end entity but has keyCertSign bit set). |
| target = common.create_end_entity_certificate('Target', intermediate) |
| target.get_extensions().set_property('keyUsage', |
| 'critical,digitalSignature,keyEncipherment,keyCertSign') |
| |
| |
| chain = [target, intermediate] |
| trusted = common.TrustAnchor(root, constrained=False) |
| time = common.DEFAULT_TIME |
| key_purpose = common.DEFAULT_KEY_PURPOSE |
| verify_result = False |
| errors = """----- Certificate i=0 (CN=Target) ----- |
| ERROR: Target certificate looks like a CA but does not set all CA properties |
| |
| """ |
| |
| common.write_test_file(__doc__, chain, trusted, time, key_purpose, |
| verify_result, errors) |
