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 policyMappings on the root, and the intermediate and 6leaf using the issuerDomainPolicy value. Should fail if anchor constraints are 7enforced.""" 8 9import sys 10sys.path += ['../..'] 11 12import gencerts 13 14# Self-signed root certificate. 15root = gencerts.create_self_signed_root_certificate('Root') 16root.get_extensions().set_property('certificatePolicies', 'critical,1.2.3.4') 17root.get_extensions().set_property('policyMappings', 18 'critical,@policy_mappings') 19policy_mappings = root.config.get_section('policy_mappings') 20policy_mappings.set_property('1.2.3.4', '1.2.3.6') 21 22# Intermediate certificate. 23intermediate = gencerts.create_intermediate_certificate('Intermediate', root) 24intermediate.get_extensions().set_property('policyConstraints', 25 'critical,requireExplicitPolicy:0') 26intermediate.get_extensions().set_property('certificatePolicies', 27 'critical,1.2.3.4') 28 29# Target certificate. 30target = gencerts.create_end_entity_certificate('Target', intermediate) 31target.get_extensions().set_property('certificatePolicies', 'critical,1.2.3.4') 32 33chain = [target, intermediate, root] 34gencerts.write_chain(__doc__, chain, 'chain.pem') 35