| /* |
| * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 4921443 |
| * @summary Ensure ISO10126Padding works correctly. |
| * @author Valerie Peng |
| * @key randomness |
| */ |
| import java.util.Arrays; |
| import java.security.*; |
| import java.security.spec.*; |
| |
| import javax.crypto.*; |
| import javax.crypto.spec.*; |
| import java.security.Provider; |
| |
| public class TestISO10126Padding { |
| private static final String ALGO = "AES"; |
| private static final String TRANS = "AES/ECB"; |
| private static final int KEYSIZE = 16; // in bytes |
| |
| private SecretKey key; |
| |
| private TestISO10126Padding() throws Exception { |
| // setup |
| KeyGenerator kg = KeyGenerator.getInstance(ALGO, "SunJCE"); |
| kg.init(KEYSIZE*8); |
| key = kg.generateKey(); |
| } |
| |
| private void runTest(int dataLength) throws Exception { |
| // setup |
| byte[] data = new byte[dataLength]; |
| new SecureRandom().nextBytes(data); |
| System.out.println("Testing data length: " + dataLength); |
| |
| // TEST#1 -- |
| // generate the cipher text using manually-supplied |
| // XML Encryption padding |
| Cipher ci = Cipher.getInstance(TRANS + "/NoPadding", "SunJCE"); |
| ci.init(Cipher.ENCRYPT_MODE, key); |
| byte[] paddedData = new byte[ci.getBlockSize()]; |
| System.arraycopy(data, 0, paddedData, 0, data.length); |
| int padValue = paddedData.length - data.length; |
| paddedData[paddedData.length-1] = (byte) padValue; |
| byte[] cipherText = ci.doFinal(paddedData); |
| |
| // decrypt using ISO10126Padding |
| ci = Cipher.getInstance(TRANS + "/ISO10126Padding", "SunJCE"); |
| ci.init(Cipher.DECRYPT_MODE, key); |
| byte[] recovered = ci.doFinal(cipherText); |
| if (!Arrays.equals(data, recovered)) { |
| throw new Exception("TEST#1: decryption failed"); |
| } |
| // TEST#2 -- |
| // generate the cipher text using ISO10126Padding |
| ci = Cipher.getInstance(TRANS + "/ISO10126Padding", "SunJCE"); |
| ci.init(Cipher.ENCRYPT_MODE, key); |
| cipherText = ci.doFinal(data); |
| |
| // decrypt using ISO10126Padding |
| ci.init(Cipher.DECRYPT_MODE, key); |
| recovered = ci.doFinal(cipherText); |
| if (!Arrays.equals(data, recovered)) { |
| throw new Exception("TEST#2: decryption failed"); |
| } |
| } |
| |
| public static void main(String[] argv) throws Exception { |
| TestISO10126Padding test = new TestISO10126Padding(); |
| for (int i = 0; i<16; i++) { |
| test.runTest(i); |
| } |
| System.out.println("Test Passed"); |
| } |
| } |