1#!/usr/bin/env python3
2# Copyright 2023 The Chromium Authors
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#     https://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15"""Certificate chain of length 3 with requireExplicitPolicy=2 on the root,
16meaning an explicit policy should be required and the chain should fail to
17verify if the root constraints are enforced."""
18
19import sys
20sys.path += ['../..']
21
22import gencerts
23
24# Self-signed root certificate.
25root = gencerts.create_self_signed_root_certificate('Root')
26root.get_extensions().set_property('policyConstraints',
27                                   'critical,requireExplicitPolicy:2')
28
29# Intermediate certificate.
30intermediate = gencerts.create_intermediate_certificate('Intermediate', root)
31
32# Target certificate.
33target = gencerts.create_end_entity_certificate('Target', intermediate)
34
35chain = [target, intermediate, root]
36gencerts.write_chain(__doc__, chain, 'chain.pem')
37