1 /* 2 * Copyright (c) 2001, 2017, 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 8048604 27 * @library ../ /test/lib 28 * @summary This test verifies the assertion "There should be no transformation 29 * on the plaintext/ciphertext in encryption/decryption mechanism" for 30 * feature "NullCipher". 31 */ 32 33 import javax.crypto.BadPaddingException; 34 import javax.crypto.Cipher; 35 import javax.crypto.IllegalBlockSizeException; 36 import javax.crypto.NullCipher; 37 import javax.crypto.ShortBufferException; 38 import jdk.test.lib.RandomFactory; 39 40 public class CipherNCFuncTest { 41 public static void main(String[] args) throws ShortBufferException, 42 IllegalBlockSizeException, BadPaddingException { 43 byte[] plainText = new byte[801]; 44 // Initialization 45 RandomFactory.getRandom().nextBytes(plainText); 46 Cipher ci = new NullCipher(); 47 // Encryption 48 byte[] cipherText = new byte[ci.getOutputSize(plainText.length)]; 49 int offset = ci.update(plainText, 0, plainText.length, cipherText, 0); 50 ci.doFinal(cipherText, offset); 51 // Decryption 52 byte[] recoveredText = new byte[ci.getOutputSize(cipherText.length)]; 53 int len = ci.doFinal(cipherText, 0, cipherText.length, recoveredText); 54 // Comparison 55 if (len != plainText.length || 56 !TestUtilities.equalsBlock(plainText, cipherText, len) || 57 !TestUtilities.equalsBlock(plainText, recoveredText, len)) { 58 throw new RuntimeException( 59 "Test failed because plainText not equal to cipherText and revoveredText"); 60 } 61 } 62 }