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/*
* Copyright (c) 2003, 2016, 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 4937853 8170876
* @summary Make sure normal calls of NullCipher does not throw NPE.
* @author Valerie Peng
* @key randomness
* @run main TestNPE
* @run main/othervm -Djava.security.debug=provider TestNPE
*/
import java.util.Arrays;
import java.security.AlgorithmParameters;
import java.security.Key;
import java.security.SecureRandom;
import java.security.cert.Certificate;
import java.security.spec.AlgorithmParameterSpec;
import javax.crypto.Cipher;
import javax.crypto.NullCipher;
import javax.crypto.spec.SecretKeySpec;
public class TestNPE {
private static byte[] BYTES = new byte[16];
static {
new SecureRandom().nextBytes(BYTES);
}
public static void main(String[] args) throws Exception {
NullCipher nc = new NullCipher();
// testing init(...)
nc.init(Cipher.ENCRYPT_MODE, (Certificate) null);
nc.init(Cipher.ENCRYPT_MODE, (Certificate) null, (SecureRandom) null);
nc.init(Cipher.ENCRYPT_MODE, (Key) null);
nc.init(Cipher.ENCRYPT_MODE, (Key) null, (AlgorithmParameters) null);
nc.init(Cipher.ENCRYPT_MODE, (Key) null, (AlgorithmParameterSpec) null);
nc.init(Cipher.ENCRYPT_MODE, (Key) null, (AlgorithmParameterSpec) null,
(SecureRandom) null);
nc.init(Cipher.ENCRYPT_MODE, (Key) null, (AlgorithmParameters) null,
(SecureRandom) null);
nc.init(Cipher.ENCRYPT_MODE, (Key) null, (SecureRandom) null);
// testing getBlockSize()
if (nc.getBlockSize() != 1) {
throw new Exception("Error with getBlockSize()");
}
// testing update(...)
byte[] out = nc.update(BYTES);
if (!Arrays.equals(out, BYTES)) {
throw new Exception("Error with update(byte[])");
}
out = nc.update(BYTES, 0, BYTES.length);
if (!Arrays.equals(out, BYTES)) {
throw new Exception("Error with update(byte[], int, int)");
}
if (nc.update(BYTES, 0, BYTES.length, out) != BYTES.length) {
throw new Exception("Error with update(byte[], int, int, byte[])");
}
if (nc.update(BYTES, 0, BYTES.length, out, 0) != BYTES.length) {
throw new Exception(
"Error with update(byte[], int, int, byte[], int)");
}
// testing doFinal(...)
if (nc.doFinal() != null) {
throw new Exception("Error with doFinal()");
}
if (nc.doFinal(out, 0) != 0) {
throw new Exception("Error with doFinal(byte[], 0)");
}
out = nc.doFinal(BYTES);
if (!Arrays.equals(out, BYTES)) {
throw new Exception("Error with doFinal(byte[])");
}
out = nc.doFinal(BYTES, 0, BYTES.length);
if (!Arrays.equals(out, BYTES)) {
throw new Exception("Error with doFinal(byte[], int, int)");
}
if (nc.doFinal(BYTES, 0, BYTES.length, out) != BYTES.length) {
throw new Exception(
"Error with doFinal(byte[], int, int, byte[])");
}
if (nc.doFinal(BYTES, 0, BYTES.length, out, 0) != BYTES.length) {
throw new Exception(
"Error with doFinal(byte[], int, int, byte[], int)");
}
// testing getExemptionMechanism()
if (nc.getExemptionMechanism() != null) {
throw new Exception("Error with getExemptionMechanism()");
}
// testing getOutputSize(int)
if (nc.getOutputSize(5) != 5) {
throw new Exception("Error with getOutputSize()");
}
// testing getIV(), getParameters(), getAlgorithm(), etc.
if (nc.getIV() == null) { // should've been null;
// left it as is for backward-compatibility
throw new Exception("Error with getIV()");
}
if (nc.getParameters() != null) {
throw new Exception("Error with getParameters()");
}
if (nc.getAlgorithm() != null) {
throw new Exception("Error with getAlgorithm()");
}
if (nc.getProvider() != null) { // not associated with any provider
throw new Exception("Error with getProvider()");
}
System.out.println("Test Done");
}
}
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