J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * @test |
| 26 | * @bug 4921443 |
| 27 | * @summary Ensure ISO10126Padding works correctly. |
| 28 | * @author Valerie Peng |
| 29 | */ |
| 30 | import java.util.Arrays; |
| 31 | import java.security.*; |
| 32 | import java.security.spec.*; |
| 33 | |
| 34 | import javax.crypto.*; |
| 35 | import javax.crypto.spec.*; |
| 36 | import java.security.Provider; |
| 37 | import com.sun.crypto.provider.*; |
| 38 | |
| 39 | public class TestISO10126Padding { |
| 40 | private static final String ALGO = "AES"; |
| 41 | private static final String TRANS = "AES/ECB"; |
| 42 | private static final int KEYSIZE = 16; // in bytes |
| 43 | |
| 44 | private SecretKey key; |
| 45 | |
| 46 | private TestISO10126Padding() throws Exception { |
| 47 | // setup |
| 48 | KeyGenerator kg = KeyGenerator.getInstance(ALGO, "SunJCE"); |
| 49 | kg.init(KEYSIZE*8); |
| 50 | key = kg.generateKey(); |
| 51 | } |
| 52 | |
| 53 | private void runTest(int dataLength) throws Exception { |
| 54 | // setup |
| 55 | byte[] data = new byte[dataLength]; |
| 56 | new SecureRandom().nextBytes(data); |
| 57 | System.out.println("Testing data length: " + dataLength); |
| 58 | |
| 59 | // TEST#1 -- |
| 60 | // generate the cipher text using manually-supplied |
| 61 | // XML Encryption padding |
| 62 | Cipher ci = Cipher.getInstance(TRANS + "/NoPadding", "SunJCE"); |
| 63 | ci.init(Cipher.ENCRYPT_MODE, key); |
| 64 | byte[] paddedData = new byte[ci.getBlockSize()]; |
| 65 | System.arraycopy(data, 0, paddedData, 0, data.length); |
| 66 | int padValue = paddedData.length - data.length; |
| 67 | paddedData[paddedData.length-1] = (byte) padValue; |
| 68 | byte[] cipherText = ci.doFinal(paddedData); |
| 69 | |
| 70 | // decrypt using ISO10126Padding |
| 71 | ci = Cipher.getInstance(TRANS + "/ISO10126Padding", "SunJCE"); |
| 72 | ci.init(Cipher.DECRYPT_MODE, key); |
| 73 | byte[] recovered = ci.doFinal(cipherText); |
| 74 | if (!Arrays.equals(data, recovered)) { |
| 75 | throw new Exception("TEST#1: decryption failed"); |
| 76 | } |
| 77 | // TEST#2 -- |
| 78 | // generate the cipher text using ISO10126Padding |
| 79 | ci = Cipher.getInstance(TRANS + "/ISO10126Padding", "SunJCE"); |
| 80 | ci.init(Cipher.ENCRYPT_MODE, key); |
| 81 | cipherText = ci.doFinal(data); |
| 82 | |
| 83 | // decrypt using ISO10126Padding |
| 84 | ci.init(Cipher.DECRYPT_MODE, key); |
| 85 | recovered = ci.doFinal(cipherText); |
| 86 | if (!Arrays.equals(data, recovered)) { |
| 87 | throw new Exception("TEST#2: decryption failed"); |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | public static void main(String[] argv) throws Exception { |
| 92 | TestISO10126Padding test = new TestISO10126Padding(); |
| 93 | for (int i = 0; i<16; i++) { |
| 94 | test.runTest(i); |
| 95 | } |
| 96 | System.out.println("Test Passed"); |
| 97 | } |
| 98 | } |