1 /*
2 * Copyright (c) 2015, 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 import static java.lang.System.out;
25 import java.nio.ByteBuffer;
26 import java.security.MessageDigest;
27 import java.security.NoSuchAlgorithmException;
28 import java.security.Security;
29 import jdk.test.lib.RandomFactory;
30
31 /**
32 * @test
33 * @bug 8050371 8156059
34 * @summary Check md.getDigestLength() equal digest output length with various
35 * algorithm/dataLen/(update,digest methods).
36 * @author Kevin Liu
37 * @key randomness
38 * @library /test/lib
39 */
40
41 public class TestSameLength {
42
43 public static void main(String[] args) throws Exception {
44 TestSameLength test = new TestSameLength();
45 test.run();
46 }
47
48 private void run() throws Exception {
49 String[] algorithmArr = { "SHA", "Sha", "SHA-1", "sha-1", "SHA1",
50 "sha1", "MD5", "md5", "SHA-224", "SHA-256", "SHA-384",
51 "SHA-512", "SHA3-224", "SHA3-256", "SHA3-384", "SHA3-512" };
52 int[] nUpdatesArr = { 0, 1, 2, 3 };
53 int[] dataLenArr = { 1, 50, 2500, 125000, 6250000 };
54
55 for (String algorithm : algorithmArr) {
56 for (UpdateMethod update : UpdateMethod.values()) {
57 for (int dataLen : dataLenArr) {
58 if (!runTest(algorithm, dataLen, update)) {
59 throw new RuntimeException(
60 "Test failed at algorithm/dataLen/numUpdate:"
61 + algorithm + "/" + dataLen + "/"
62 + update.toString());
63 }
64 }
65 }
66 }
67
68 out.println("All "
69 + algorithmArr.length * nUpdatesArr.length * dataLenArr.length
70 + " tests Passed");
71 }
72
73 private boolean runTest(String algo, long dataLen, UpdateMethod whichUpdate)
74 throws Exception {
75 try {
76 // Do initialization
77 byte[] data = new byte[(int) dataLen];
78 RandomFactory.getRandom().nextBytes(data);
79 MessageDigest md = MessageDigest.getInstance(algo);
80 int outputLen = md.getDigestLength();
81
82 // Perform the update using all available/possible update methods
83 whichUpdate.updateDigest(data, md, dataLen);
84 // Get the output
85 byte[] output = md.digest();
86
87 // Compare input and output
88 return outputLen == output.length;
89 } catch (NoSuchAlgorithmException nae) {
90 if (algo.startsWith("SHA3") && !isSHA3supported()) {
91 return true;
92 }
93 throw nae;
94 } catch (Exception ex) {
95 System.err.println("Testing: " + algo + "/" + dataLen + "/"
96 + whichUpdate.toString()
97 + " failed with unexpected exception");
98 ex.printStackTrace();
99 throw ex;
100 }
101 }
102
103 // SHA-3 hash algorithms are only supported by "SUN" provider
104 // and "OracleUcrypto" provider on Solaris 12.0 or later
105 // This method checks if system supports SHA-3
106 private boolean isSHA3supported() {
107 if (Security.getProvider("SUN") != null) {
108 return true;
109 }
110 if (Security.getProvider("OracleUcrypto") != null
111 && "SunOS".equals(System.getProperty("os.name"))
112 && System.getProperty("os.version").compareTo("5.12") >= 0) {
113 return true;
114 }
115 return false;
116 }
117
118 private static enum UpdateMethod {
119 UPDATE_BYTE {
120 @Override
121 public void updateDigest(byte[] data, MessageDigest md,
122 long dataLen) {
123
124 for (int i = 0; i < dataLen; i++) {
125 md.update(data[i]);
126 }
127 }
128 },
129
130 UPDATE_BUFFER {
131 @Override
132 public void updateDigest(byte[] data, MessageDigest md,
133 long dataLen) {
134
135 md.update(data);
136 }
137 },
138
139 UPDATE_BUFFER_LEN {
140 @Override
141 public void updateDigest(byte[] data, MessageDigest md,
142 long dataLen) {
143
144 for (int i = 0; i < dataLen; i++) {
145 md.update(data, i, 1);
146 }
147 }
148 },
149
150 UPDATE_BYTE_BUFFER {
151 @Override
152 public void updateDigest(byte[] data, MessageDigest md,
153 long dataLen) {
154
155 md.update(ByteBuffer.wrap(data));
156 }
157 };
158
159 public abstract void updateDigest(byte[] data, MessageDigest md,
160 long dataLen);
161 }
162 }