| /* |
| * Copyright (c) 2014, 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. |
| */ |
| |
| import java.security.InvalidAlgorithmParameterException; |
| import java.security.InvalidKeyException; |
| import java.security.NoSuchAlgorithmException; |
| import java.security.NoSuchProviderException; |
| import java.security.spec.AlgorithmParameterSpec; |
| import java.util.Arrays; |
| import java.util.Random; |
| import javax.crypto.BadPaddingException; |
| import javax.crypto.Cipher; |
| import javax.crypto.IllegalBlockSizeException; |
| import javax.crypto.KeyGenerator; |
| import javax.crypto.NoSuchPaddingException; |
| import javax.crypto.SecretKey; |
| import javax.crypto.ShortBufferException; |
| import javax.crypto.spec.IvParameterSpec; |
| |
| |
| /** |
| * @test |
| * @bug 8043836 |
| * @summary Test AES ciphers with 4 different modes with NoPadding. Check if |
| * data before encryption and after decryption is the same. |
| * @key randomness |
| */ |
| |
| public class CTR { |
| |
| private static final String ALGORITHM = "AES"; |
| |
| private static final String PROVIDER = "SunJCE"; |
| |
| private static final String[] MODES = {"CTR","CFB24","OFB32","GCM"}; |
| |
| private static final String PADDING = "NoPadding"; |
| |
| |
| private static final int KEY_LENGTH = 128; |
| |
| public static void main(String argv[]) throws Exception { |
| CTR test = new CTR(); |
| for (String mode : MODES) { |
| test.runTest(ALGORITHM, mode, PADDING); |
| } |
| } |
| |
| |
| public void runTest(String algo, String mo, String pad) throws Exception { |
| Cipher ci = null; |
| byte[] iv = null; |
| AlgorithmParameterSpec aps = null; |
| SecretKey key = null; |
| |
| try { |
| Random rdm = new Random(); |
| byte[] plainText; |
| |
| ci = Cipher.getInstance(algo + "/" + mo + "/" + pad, PROVIDER); |
| KeyGenerator kg = KeyGenerator.getInstance(algo, PROVIDER); |
| kg.init(KEY_LENGTH); |
| key = kg.generateKey(); |
| |
| for (int i = 0; i < 15; i++) { |
| plainText = new byte[1600 + i + 1]; |
| rdm.nextBytes(plainText); |
| |
| if (!mo.equalsIgnoreCase("GCM")) { |
| ci.init(Cipher.ENCRYPT_MODE, key, aps); |
| } else { |
| ci.init(Cipher.ENCRYPT_MODE, key); |
| } |
| |
| byte[] cipherText = new byte[ci.getOutputSize(plainText.length)]; |
| int offset = ci.update(plainText, 0, plainText.length, |
| cipherText, 0); |
| |
| ci.doFinal(cipherText, offset); |
| |
| if (!mo.equalsIgnoreCase("ECB")) { |
| iv = ci.getIV(); |
| aps = new IvParameterSpec(iv); |
| } else { |
| aps = null; |
| } |
| |
| if (!mo.equalsIgnoreCase("GCM")) { |
| ci.init(Cipher.DECRYPT_MODE, key, aps); |
| } else { |
| ci.init(Cipher.DECRYPT_MODE, key, ci.getParameters()); |
| } |
| |
| byte[] recoveredText = new byte[ci.getOutputSize(cipherText.length)]; |
| int len = ci.doFinal(cipherText, 0, cipherText.length, |
| recoveredText); |
| byte[] tmp = new byte[len]; |
| |
| for (int j = 0; j < len; j++) { |
| tmp[j] = recoveredText[j]; |
| } |
| Arrays.toString(plainText); |
| if (!java.util.Arrays.equals(plainText, tmp)) { |
| System.out.println("Original: "); |
| dumpBytes(plainText); |
| System.out.println("Recovered: "); |
| dumpBytes(tmp); |
| throw new RuntimeException("Original text is not equal with recovered text, with mode:" + mo); |
| } |
| } |
| } catch (NoSuchAlgorithmException | NoSuchProviderException | NoSuchPaddingException |
| | InvalidKeyException | InvalidAlgorithmParameterException |
| | ShortBufferException | IllegalBlockSizeException |
| | BadPaddingException e) { |
| System.out.println("Test failed!"); |
| throw e; |
| } |
| } |
| |
| private void dumpBytes(byte[] bytes){ |
| for (byte b : bytes){ |
| System.out.print(Integer.toHexString(b)); |
| } |
| System.out.println(); |
| } |
| } |