1 /*
2 * Copyright (c) 2012, 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 */
32
33 import java.util.*;
34
35 import java.security.*;
36
37 public class TestCloning extends PKCS11Test {
38
39 private static final String[] ALGOS = {
40 "MD2", "MD5", "SHA1", "SHA-224", "SHA-256", "SHA-384", "SHA-512"
41 };
42
43 public static void main(String[] args) throws Exception {
44 main(new TestCloning());
45 }
46
47 private static final byte[] data1 = new byte[10];
48 private static final byte[] data2 = new byte[10*1024];
49
50
51 public void main(Provider p) throws Exception {
52 Random r = new Random();
53 byte[] data1 = new byte[10];
54 byte[] data2 = new byte[2*1024];
55 r.nextBytes(data1);
56 r.nextBytes(data2);
57 System.out.println("Testing against provider " + p.getName());
58 for (int i = 0; i < ALGOS.length; i++) {
59 if (p.getService("MessageDigest", ALGOS[i]) == null) {
60 System.out.println(ALGOS[i] + " is not supported, skipping");
61 continue;
62 } else {
63 System.out.println("Testing " + ALGOS[i] + " of " + p.getName());
64 MessageDigest md = MessageDigest.getInstance(ALGOS[i], p);
65 try {
66 md = testCloning(md, p);
67 // repeat the test again after generating digest once
68 for (int j = 0; j < 10; j++) {
69 md = testCloning(md, p);
70 }
71 } catch (Exception ex) {
72 if (ALGOS[i] == "MD2" &&
73 p.getName().equalsIgnoreCase("SunPKCS11-NSS")) {
74 // known bug in NSS; ignore for now
75 System.out.println("Ignore Known bug in MD2 of NSS");
76 continue;
77 }
78 throw ex;
79 }
80 }
81 }
82 }
83
84 private static MessageDigest testCloning(MessageDigest mdObj, Provider p)
85 throws Exception {
86
87 // copy#0: clone at state BLANK w/o any data
88 MessageDigest mdCopy0 = (MessageDigest) mdObj.clone();
89
90 // copy#1: clone again at state BUFFERED w/ very short data
91 mdObj.update(data1);
92 mdCopy0.update(data1);
93 MessageDigest mdCopy1 = (MessageDigest) mdObj.clone();
94
95 // copy#2: clone again after updating it w/ long data to trigger
96 // the state into INIT
97 mdObj.update(data2);
98 mdCopy0.update(data2);
99 mdCopy1.update(data2);
100 MessageDigest mdCopy2 = (MessageDigest) mdObj.clone();
101
102 // copy#3: clone again after updating it w/ very short data
103 mdObj.update(data1);
104 mdCopy0.update(data1);
105 mdCopy1.update(data1);
106 mdCopy2.update(data1);
107 MessageDigest mdCopy3 = (MessageDigest) mdObj.clone();
108
109 // copy#4: clone again after updating it w/ long data
110 mdObj.update(data2);
111 mdCopy0.update(data2);
112 mdCopy1.update(data2);
113 mdCopy2.update(data2);
114 mdCopy3.update(data2);
115 MessageDigest mdCopy4 = (MessageDigest) mdObj.clone();
116
117 // check digest equalities
118 byte[] answer = mdObj.digest();
119 byte[] result0 = mdCopy0.digest();
120 byte[] result1 = mdCopy1.digest();
121 byte[] result2 = mdCopy2.digest();
122 byte[] result3 = mdCopy3.digest();
123 byte[] result4 = mdCopy4.digest();
124
125
126 check(answer, result0, "copy0");
127 check(answer, result1, "copy1");
128 check(answer, result2, "copy2");
129 check(answer, result3, "copy3");
130 check(answer, result4, "copy4");
131
132 return mdCopy3;
133 }
134
135 private static void check(byte[] d1, byte[] d2, String copyName)
136 throws Exception {
137 if (Arrays.equals(d1, d2) == false) {
138 throw new RuntimeException(copyName + " digest mismatch!");
139 }
140 }
141 }
142