1/*
2 * Copyright (c) 2012, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 * @test
26 * @bug 6414899
27 * @summary Ensure the cloning functionality works.
28 * @author Valerie Peng
29 * @library ..
30 * @key randomness
31 * @modules jdk.crypto.cryptoki
32 * @run main/othervm TestCloning
33 * @run main/othervm TestCloning sm
34 */
35
36import java.security.MessageDigest;
37import java.security.Provider;
38import java.util.Arrays;
39import java.util.Random;
40
41public class TestCloning extends PKCS11Test {
42
43    private static final String[] ALGOS = {
44        "MD2", "MD5", "SHA1", "SHA-224", "SHA-256", "SHA-384", "SHA-512"
45    };
46
47    public static void main(String[] args) throws Exception {
48        main(new TestCloning(), args);
49    }
50
51    private static final byte[] data1 = new byte[10];
52    private static final byte[] data2 = new byte[10*1024];
53
54
55    @Override
56    public void main(Provider p) throws Exception {
57        Random r = new Random();
58        byte[] data1 = new byte[10];
59        byte[] data2 = new byte[2*1024];
60        r.nextBytes(data1);
61        r.nextBytes(data2);
62        System.out.println("Testing against provider " + p.getName());
63        for (int i = 0; i < ALGOS.length; i++) {
64            if (p.getService("MessageDigest", ALGOS[i]) == null) {
65                System.out.println(ALGOS[i] + " is not supported, skipping");
66                continue;
67            } else {
68                System.out.println("Testing " + ALGOS[i] + " of " + p.getName());
69                MessageDigest md = MessageDigest.getInstance(ALGOS[i], p);
70                try {
71                    md = testCloning(md, p);
72                    // repeat the test again after generating digest once
73                    for (int j = 0; j < 10; j++) {
74                        md = testCloning(md, p);
75                    }
76                } catch (Exception ex) {
77                    if (ALGOS[i] == "MD2" &&
78                        p.getName().equalsIgnoreCase("SunPKCS11-NSS")) {
79                        // known bug in NSS; ignore for now
80                        System.out.println("Ignore Known bug in MD2 of NSS");
81                        continue;
82                    }
83                    throw ex;
84                }
85            }
86        }
87    }
88
89    private static MessageDigest testCloning(MessageDigest mdObj, Provider p)
90        throws Exception {
91
92        // copy#0: clone at state BLANK w/o any data
93        MessageDigest mdCopy0 = (MessageDigest) mdObj.clone();
94
95        // copy#1: clone again at state BUFFERED w/ very short data
96        mdObj.update(data1);
97        mdCopy0.update(data1);
98        MessageDigest mdCopy1 = (MessageDigest) mdObj.clone();
99
100        // copy#2: clone again after updating it w/ long data to trigger
101        // the state into INIT
102        mdObj.update(data2);
103        mdCopy0.update(data2);
104        mdCopy1.update(data2);
105        MessageDigest mdCopy2 = (MessageDigest) mdObj.clone();
106
107        // copy#3: clone again after updating it w/ very short data
108        mdObj.update(data1);
109        mdCopy0.update(data1);
110        mdCopy1.update(data1);
111        mdCopy2.update(data1);
112        MessageDigest mdCopy3 = (MessageDigest) mdObj.clone();
113
114        // copy#4: clone again after updating it w/ long data
115        mdObj.update(data2);
116        mdCopy0.update(data2);
117        mdCopy1.update(data2);
118        mdCopy2.update(data2);
119        mdCopy3.update(data2);
120        MessageDigest mdCopy4 = (MessageDigest) mdObj.clone();
121
122        // check digest equalities
123        byte[] answer = mdObj.digest();
124        byte[] result0 = mdCopy0.digest();
125        byte[] result1 = mdCopy1.digest();
126        byte[] result2 = mdCopy2.digest();
127        byte[] result3 = mdCopy3.digest();
128        byte[] result4 = mdCopy4.digest();
129
130
131        check(answer, result0, "copy0");
132        check(answer, result1, "copy1");
133        check(answer, result2, "copy2");
134        check(answer, result3, "copy3");
135        check(answer, result4, "copy4");
136
137        return mdCopy3;
138    }
139
140    private static void check(byte[] d1, byte[] d2, String copyName)
141            throws Exception {
142        if (Arrays.equals(d1, d2) == false) {
143            throw new RuntimeException(copyName + " digest mismatch!");
144        }
145    }
146}
147
148