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/*
* Copyright (c) 2001, 2017, 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 8048604
* @library ../ /test/lib
* @build jdk.test.lib.RandomFactory
* @run main CipherNCFuncTest
* @summary This test verifies the assertion "There should be no transformation
* on the plaintext/ciphertext in encryption/decryption mechanism" for
* feature "NullCipher".
*/
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NullCipher;
import javax.crypto.ShortBufferException;
import jdk.test.lib.RandomFactory;
public class CipherNCFuncTest {
public static void main(String[] args) throws ShortBufferException,
IllegalBlockSizeException, BadPaddingException {
byte[] plainText = new byte[801];
// Initialization
RandomFactory.getRandom().nextBytes(plainText);
Cipher ci = new NullCipher();
// Encryption
byte[] cipherText = new byte[ci.getOutputSize(plainText.length)];
int offset = ci.update(plainText, 0, plainText.length, cipherText, 0);
ci.doFinal(cipherText, offset);
// Decryption
byte[] recoveredText = new byte[ci.getOutputSize(cipherText.length)];
int len = ci.doFinal(cipherText, 0, cipherText.length, recoveredText);
// Comparison
if (len != plainText.length ||
!TestUtilities.equalsBlock(plainText, cipherText, len) ||
!TestUtilities.equalsBlock(plainText, recoveredText, len)) {
throw new RuntimeException(
"Test failed because plainText not equal to cipherText and revoveredText");
}
}
}
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