#!/usr/bin/env python # Copyright 2017 The Chromium Authors # Use of this source code is governed by a BSD-style license that can be # found in the LICENSE file. """Certificate chain where the target certificate sets the extended key usage to clientAuth. Neither the root nor the intermediate have an EKU.""" import sys sys.path += ['../..'] import gencerts # Self-signed root certificate. root = gencerts.create_self_signed_root_certificate('Root') # Intermediate certificate. intermediate = gencerts.create_intermediate_certificate('Intermediate', root) # Target certificate. target = gencerts.create_end_entity_certificate('Target', intermediate) target.get_extensions().set_property('extendedKeyUsage', 'clientAuth') chain = [target, intermediate, root] gencerts.write_chain(__doc__, chain, 'chain.pem')