1#!/usr/bin/env python3 2# Copyright 2023 The Chromium Authors 3# Use of this source code is governed by a BSD-style license that can be 4# found in the LICENSE file. 5"""Certificate chain with policies and requireExplicitPolicy.""" 6 7import sys 8sys.path += ['../..'] 9 10import gencerts 11 12# Self-signed root certificate. 13root = gencerts.create_self_signed_root_certificate('Root') 14 15# Intermediate certificate. 16intermediate = gencerts.create_intermediate_certificate('Intermediate', root) 17intermediate.get_extensions().set_property('certificatePolicies', 18 'critical,1.2.3.4') 19intermediate.get_extensions().set_property('policyConstraints', 20 'critical,requireExplicitPolicy:0') 21 22# Target certificate. 23target = gencerts.create_end_entity_certificate('Target', intermediate) 24target.get_extensions().set_property('certificatePolicies', 'critical,1.2.3.4') 25 26chain = [target, intermediate, root] 27gencerts.write_chain(__doc__, chain, 'chain.pem') 28