1#!/usr/bin/env python 2# Copyright 2015 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 where the intermediate has a valid signature, however uses 6MD5 in the signature algorithm.""" 7 8import sys 9sys.path += ['../..'] 10 11import gencerts 12 13# Self-signed root certificate. 14root = gencerts.create_self_signed_root_certificate('Root') 15 16# Intermediate. 17intermediate = gencerts.create_intermediate_certificate('Intermediate', root) 18intermediate.set_signature_hash('sha1') 19 20# Target certificate. 21target = gencerts.create_end_entity_certificate('Target', intermediate) 22 23chain = [target, intermediate, root] 24gencerts.write_chain(__doc__, chain, 'chain.pem') 25