Test4628062.java revision 6073:cea72c2bf071 
1/*
2 * Copyright (c) 2002, 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 4628062 4963723
27 * @summary Verify that AES KeyGenerator supports default initialization
28 *      when init is not called
29 * @author Valerie Peng
30 */
31import java.security.*;
32import javax.crypto.*;
33import java.util.*;
34
35public class Test4628062 {
36
37    private static final int[] AES_SIZES = { 16, 24, 32 }; // in bytes
38    private static final int[] HMACSHA224_SIZES = { 28 };
39    private static final int[] HMACSHA256_SIZES = { 32 };
40    private static final int[] HMACSHA384_SIZES = { 48 };
41    private static final int[] HMACSHA512_SIZES = { 64 };
42
43    public boolean execute(String algo, int[] keySizes) throws Exception {
44        KeyGenerator kg = KeyGenerator.getInstance(algo, "SunJCE");
45
46        // TEST FIX 4628062
47        Key keyWithDefaultSize = kg.generateKey();
48        byte[] encoding = keyWithDefaultSize.getEncoded();
49        int defKeyLen = encoding.length ;
50        if (defKeyLen == 0) {
51            throw new Exception("default key length is 0!");
52        } else if (defKeyLen != keySizes[0]) {
53            throw new Exception("default key length mismatch!");
54        }
55
56        // BONUS TESTS
57        if (keySizes.length > 1) {
58            // 1. call init(int keysize) with various valid key sizes
59            // and see if the generated key is the right size.
60            for (int i=0; i<keySizes.length; i++) {
61                kg.init(keySizes[i]*8); // in bits
62                Key key = kg.generateKey();
63                if (key.getEncoded().length != keySizes[i]) {
64                    throw new Exception("key is generated with the wrong length!");
65                }
66            }
67            // 2. call init(int keysize) with invalid key size and see
68            // if the expected InvalidParameterException is thrown.
69            try {
70                kg.init(keySizes[0]*8+1);
71            } catch (InvalidParameterException ex) {
72            } catch (Exception ex) {
73                throw new Exception("wrong exception is thrown for invalid key size!");
74            }
75        }
76        // passed all tests...hooray!
77        return true;
78    }
79
80    public static void main (String[] args) throws Exception {
81        Security.addProvider(new com.sun.crypto.provider.SunJCE());
82
83        Test4628062 test = new Test4628062();
84        String testName = test.getClass().getName();
85        if (test.execute("AES", AES_SIZES)) {
86            System.out.println(testName + ": AES Passed!");
87        }
88        if (test.execute("HmacSHA224", HMACSHA224_SIZES)) {
89            System.out.println(testName + ": HmacSHA224 Passed!");
90        }
91        if (test.execute("HmacSHA256", HMACSHA256_SIZES)) {
92            System.out.println(testName + ": HmacSHA256 Passed!");
93        }
94        if (test.execute("HmacSHA384", HMACSHA384_SIZES)) {
95            System.out.println(testName + ": HmacSHA384 Passed!");
96        }
97        if (test.execute("HmacSHA512", HMACSHA512_SIZES)) {
98            System.out.println(testName + ": HmacSHA512 Passed!");
99        }
100    }
101}
102