1
2 /*
3 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 */
24
25 import static java.lang.System.out;
26 import java.nio.ByteBuffer;
27 import java.security.MessageDigest;
28 import java.security.NoSuchAlgorithmException;
29 import java.security.Security;
30 import jdk.testlibrary.RandomFactory;
31
32 /**
33 * @test
34 * @bug 8050371 8156059
35 * @summary Check md.getDigestLength() equal digest output length with various
36 * algorithm/dataLen/(update,digest methods).
37 * @author Kevin Liu
38 * @key randomness
39 * @library /lib/testlibrary
40 */
41
42 public class TestSameLength {
43
44 public static void main(String[] args) throws Exception {
45 TestSameLength test = new TestSameLength();
46 test.run();
47 }
48
49 private void run() throws Exception {
50 String[] algorithmArr = { "SHA", "Sha", "SHA-1", "sha-1", "SHA1",
51 "sha1", "MD5", "md5", "SHA-224", "SHA-256", "SHA-384",
52 "SHA-512", "SHA3-224", "SHA3-256", "SHA3-384", "SHA3-512" };
53 int[] nUpdatesArr = { 0, 1, 2, 3 };
54 int[] dataLenArr = { 1, 50, 2500, 125000, 6250000 };
55
56 for (String algorithm : algorithmArr) {
57 for (UpdateMethod update : UpdateMethod.values()) {
58 for (int dataLen : dataLenArr) {
59 if (!runTest(algorithm, dataLen, update)) {
60 throw new RuntimeException(
61 "Test failed at algorithm/dataLen/numUpdate:"
62 + algorithm + "/" + dataLen + "/"
63 + update.toString());
64 }
65 }
66 }
67 }
68
69 out.println("All "
70 + algorithmArr.length * nUpdatesArr.length * dataLenArr.length
71 + " tests Passed");
72 }
73
74 private boolean runTest(String algo, long dataLen, UpdateMethod whichUpdate)
75 throws Exception {
76 try {
77 // Do initialization
78 byte[] data = new byte[(int) dataLen];
79 RandomFactory.getRandom().nextBytes(data);
80 MessageDigest md = MessageDigest.getInstance(algo);
81 int outputLen = md.getDigestLength();
82
83 // Perform the update using all available/possible update methods
84 whichUpdate.updateDigest(data, md, dataLen);
85 // Get the output
86 byte[] output = md.digest();
87
88 // Compare input and output
89 return outputLen == output.length;
90 } catch (NoSuchAlgorithmException nae) {
91 if (algo.startsWith("SHA3") && !isSHA3supported()) {
92 return true;
93 }
94 throw nae;
95 } catch (Exception ex) {
96 System.err.println("Testing: " + algo + "/" + dataLen + "/"
97 + whichUpdate.toString()
98 + " failed with unexpected exception");
99 ex.printStackTrace();
100 throw ex;
101 }
102 }
103
104 // SHA-3 hash algorithms are only supported by "SUN" provider
105 // and "OracleUcrypto" provider on Solaris 12.0 or later
106 // This method checks if system supports SHA-3
107 private boolean isSHA3supported() {
108 if (Security.getProvider("SUN") != null) {
109 return true;
110 }
111 if (Security.getProvider("OracleUcrypto") != null
112 && "SunOS".equals(System.getProperty("os.name"))
113 && System.getProperty("os.version").compareTo("5.12") >= 0) {
114 return true;
115 }
116 return false;
117 }
118
119 private static enum UpdateMethod {
120 UPDATE_BYTE {
121 @Override
122 public void updateDigest(byte[] data, MessageDigest md,
123 long dataLen) {
124
125 for (int i = 0; i < dataLen; i++) {
126 md.update(data[i]);
127 }
128 }
129 },
130
131 UPDATE_BUFFER {
132 @Override
133 public void updateDigest(byte[] data, MessageDigest md,
134 long dataLen) {
135
136 md.update(data);
137 }
138 },
139
140 UPDATE_BUFFER_LEN {
141 @Override
142 public void updateDigest(byte[] data, MessageDigest md,
143 long dataLen) {
144
145 for (int i = 0; i < dataLen; i++) {
146 md.update(data, i, 1);
147 }
148 }
149 },
150
151 UPDATE_BYTE_BUFFER {
152 @Override
153 public void updateDigest(byte[] data, MessageDigest md,
154 long dataLen) {
155
156 md.update(ByteBuffer.wrap(data));
157 }
158 };
159
160 public abstract void updateDigest(byte[] data, MessageDigest md,
161 long dataLen);
162 }
163 }