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/*
* Copyright (c) 2004, 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 4953556
* @summary ensure that IllegalStateException is thrown if the
* Cipher object is initialized with a wrong mode, e.g. WRAP_MODE
* for update()/doFinal() calls.
* @author Valerie Peng
*/
import java.security.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.spec.SecretKeySpec;
public class TestCipherMode {
private static final String ALGO = "DES";
public static void main(String[] argv) throws Exception {
TestCipherMode test = new TestCipherMode();
System.out.println("Testing ENCRYPT_MODE...");
test.checkMode(Cipher.ENCRYPT_MODE);
System.out.println("Testing DECRYPT_MODE...");
test.checkMode(Cipher.DECRYPT_MODE);
System.out.println("Testing WRAP_MODE...");
test.checkMode(Cipher.WRAP_MODE);
System.out.println("Testing UNWRAP_MODE...");
test.checkMode(Cipher.UNWRAP_MODE);
System.out.println("All Tests Passed");
}
private Cipher c = null;
private SecretKey key = null;
private TestCipherMode() throws NoSuchAlgorithmException,
NoSuchProviderException, NoSuchPaddingException {
c = Cipher.getInstance(ALGO + "/ECB/PKCS5Padding", "SunJCE");
key = new SecretKeySpec(new byte[8], ALGO);
}
private void checkMode(int mode) throws Exception {
c.init(mode, key);
switch (mode) {
case Cipher.ENCRYPT_MODE:
case Cipher.DECRYPT_MODE:
// call wrap()/unwrap() and see if ISE is thrown.
try {
c.wrap(key);
throw new Exception("ERROR: should throw ISE for wrap()");
} catch (IllegalStateException ise) {
System.out.println("expected ISE is thrown for wrap()");
}
try {
c.unwrap(new byte[16], ALGO, Cipher.SECRET_KEY);
throw new Exception("ERROR: should throw ISE for unwrap()");
} catch (IllegalStateException ise) {
System.out.println("expected ISE is thrown for unwrap()");
}
break;
case Cipher.WRAP_MODE:
case Cipher.UNWRAP_MODE:
try {
c.update(new byte[16]);
throw new Exception("ERROR: should throw ISE for update()");
} catch (IllegalStateException ise) {
System.out.println("expected ISE is thrown for update()");
}
try {
c.doFinal();
throw new Exception("ERROR: should throw ISE for doFinal()");
} catch (IllegalStateException ise) {
System.out.println("expected ISE is thrown for doFinal()");
}
break;
}
}
}
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