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1#!/bin/bash
2
3# Copyright (c) 2012 The Chromium Authors. All rights reserved.
4# Use of this source code is governed by a BSD-style license that can be
5# found in the LICENSE file.
6
7# This script generates certificates that can be used to test SSL client
8# authentication. Outputs for automated tests are stored in
9# net/data/ssl/certificates, but may be re-generated for manual testing.
10#
11# This script generates two chains of test client certificates:
12#
13#   1. A (end-entity) -> B -> C (self-signed root)
14#   2. D (end-entity) -> E -> C (self-signed root)
15#
16# In which A, B, C, D, and E all have distinct keypairs. Both client
17# certificates share the same root, but are issued by different
18# intermediates. The names of these intermediates are hardcoded within
19# unit tests, and thus should not be changed.
20
21try () {
22  echo "$@"
23  "$@" || exit 1
24}
25
26try rm -rf out
27try mkdir out
28
29echo Create the serial number files and indices.
30serial=1000
31for i in B C E
32do
33  try /bin/sh -c "echo $serial > out/$i-serial"
34  serial=$(expr $serial + 1)
35  touch out/$i-index.txt
36  touch out/$i-index.txt.attr
37done
38
39echo Generate the keys.
40for i in A B C D E
41do
42  try openssl genrsa -out out/$i.key 2048
43done
44
45echo Generate the C CSR
46COMMON_NAME="C Root CA" \
47  CA_DIR=out \
48  ID=C \
49  try openssl req \
50    -new \
51    -key out/C.key \
52    -out out/C.csr \
53    -config client-certs.cnf
54
55echo C signs itself.
56COMMON_NAME="C Root CA" \
57  CA_DIR=out \
58  ID=C \
59  try openssl x509 \
60    -req -days 3650 \
61    -in out/C.csr \
62    -extensions ca_cert \
63    -extfile client-certs.cnf \
64    -signkey out/C.key \
65    -out out/C.pem
66
67echo Generate the intermediates
68COMMON_NAME="B CA" \
69  CA_DIR=out \
70  ID=B \
71  try openssl req \
72    -new \
73    -key out/B.key \
74    -out out/B.csr \
75    -config client-certs.cnf
76
77COMMON_NAME="C CA" \
78  CA_DIR=out \
79  ID=C \
80  try openssl ca \
81    -batch \
82    -extensions ca_cert \
83    -in out/B.csr \
84    -out out/B.pem \
85    -config client-certs.cnf
86
87COMMON_NAME="E CA" \
88  CA_DIR=out \
89  ID=E \
90  try openssl req \
91    -new \
92    -key out/E.key \
93    -out out/E.csr \
94    -config client-certs.cnf
95
96COMMON_NAME="C CA" \
97  CA_DIR=out \
98  ID=C \
99  try openssl ca \
100    -batch \
101    -extensions ca_cert \
102    -in out/E.csr \
103    -out out/E.pem \
104    -config client-certs.cnf
105
106echo Generate the leaf certs
107for id in A D
108do
109  COMMON_NAME="Client Cert $id" \
110  ID=$id \
111  try openssl req \
112    -new \
113    -key out/$id.key \
114    -out out/$id.csr \
115    -config client-certs.cnf
116  # Store the private key also in PKCS#8 format.
117  try openssl pkcs8 \
118    -topk8 -nocrypt \
119    -in out/$id.key \
120    -outform DER \
121    -out out/$id.pk8
122done
123
124echo B signs A
125COMMON_NAME="B CA" \
126  CA_DIR=out \
127  ID=B \
128  try openssl ca \
129    -batch \
130    -extensions user_cert \
131    -in out/A.csr \
132    -out out/A.pem \
133    -config client-certs.cnf
134
135echo E signs D
136COMMON_NAME="E CA" \
137  CA_DIR=out \
138  ID=E \
139  try openssl ca \
140    -batch \
141    -extensions user_cert \
142    -in out/D.csr \
143    -out out/D.pem \
144    -config client-certs.cnf
145
146echo Package the client certs and private keys into PKCS12 files
147# This is done for easily importing all of the certs needed for clients.
148try /bin/sh -c "cat out/A.pem out/A.key out/B.pem out/C.pem > out/A-chain.pem"
149try /bin/sh -c "cat out/D.pem out/D.key out/E.pem out/C.pem > out/D-chain.pem"
150
151try openssl pkcs12 \
152  -in out/A-chain.pem \
153  -out client_1.p12 \
154  -export \
155  -passout pass:chrome
156
157try openssl pkcs12 \
158  -in out/D-chain.pem \
159  -out client_2.p12 \
160  -export \
161  -passout pass:chrome
162
163echo Package the client certs for unit tests
164try cp out/A.pem ../certificates/client_1.pem
165try cp out/A.key ../certificates/client_1.key
166try cp out/A.pk8 ../certificates/client_1.pk8
167try cp out/B.pem ../certificates/client_1_ca.pem
168
169try cp out/D.pem ../certificates/client_2.pem
170try cp out/D.key ../certificates/client_2.key
171try cp out/D.pk8 ../certificates/client_2.pk8
172try cp out/E.pem ../certificates/client_2_ca.pem
173