1 /*
2 * Copyright (c) 2015, 2020, 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 * @build jdk.test.lib.RandomFactory
40 * @run main TestSameLength
41 */
42
43 public class TestSameLength {
44
45 public static void main(String[] args) throws Exception {
46 TestSameLength test = new TestSameLength();
47 test.run();
48 }
49
50 private void run() throws Exception {
51 String[] algorithmArr = { "SHA", "Sha", "SHA-1", "sha-1", "SHA1",
52 "sha1", "MD5", "md5", "SHA-224", "SHA-256", "SHA-384",
53 "SHA-512", "SHA3-224", "SHA3-256", "SHA3-384", "SHA3-512" };
54 int[] nUpdatesArr = { 0, 1, 2, 3 };
55 int[] dataLenArr = { 1, 50, 2500, 125000, 6250000 };
56
57 for (String algorithm : algorithmArr) {
58 for (UpdateMethod update : UpdateMethod.values()) {
59 for (int dataLen : dataLenArr) {
60 if (!runTest(algorithm, dataLen, update)) {
61 throw new RuntimeException(
62 "Test failed at algorithm/dataLen/numUpdate:"
63 + algorithm + "/" + dataLen + "/"
64 + update.toString());
65 }
66 }
67 }
68 }
69
70 out.println("All "
71 + algorithmArr.length * nUpdatesArr.length * dataLenArr.length
72 + " tests Passed");
73 }
74
75 private boolean runTest(String algo, long dataLen, UpdateMethod whichUpdate)
76 throws Exception {
77 try {
78 // Do initialization
79 byte[] data = new byte[(int) dataLen];
80 RandomFactory.getRandom().nextBytes(data);
81 MessageDigest md = MessageDigest.getInstance(algo);
82 int outputLen = md.getDigestLength();
83
84 // Perform the update using all available/possible update methods
85 whichUpdate.updateDigest(data, md, dataLen);
86 // Get the output
87 byte[] output = md.digest();
88
89 // Compare input and output
90 return outputLen == output.length;
91 } catch (NoSuchAlgorithmException nae) {
92 throw nae;
93 } catch (Exception ex) {
94 System.err.println("Testing: " + algo + "/" + dataLen + "/"
95 + whichUpdate.toString()
96 + " failed with unexpected exception");
97 ex.printStackTrace();
98 throw ex;
99 }
100 }
101
102 private static enum UpdateMethod {
103 UPDATE_BYTE {
104 @Override
105 public void updateDigest(byte[] data, MessageDigest md,
106 long dataLen) {
107
108 for (int i = 0; i < dataLen; i++) {
109 md.update(data[i]);
110 }
111 }
112 },
113
114 UPDATE_BUFFER {
115 @Override
116 public void updateDigest(byte[] data, MessageDigest md,
117 long dataLen) {
118
119 md.update(data);
120 }
121 },
122
123 UPDATE_BUFFER_LEN {
124 @Override
125 public void updateDigest(byte[] data, MessageDigest md,
126 long dataLen) {
127
128 for (int i = 0; i < dataLen; i++) {
129 md.update(data, i, 1);
130 }
131 }
132 },
133
134 UPDATE_BYTE_BUFFER {
135 @Override
136 public void updateDigest(byte[] data, MessageDigest md,
137 long dataLen) {
138
139 md.update(ByteBuffer.wrap(data));
140 }
141 };
142
143 public abstract void updateDigest(byte[] data, MessageDigest md,
144 long dataLen);
145 }
146 }