1 /*

     2  * Copyright 2003-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /**

    25  * @test

    26  * @bug 4807942

    27  * @summary Test the Cipher.getMaxAllowedKeyLength(String) and

    28  * getMaxAllowedParameterSpec(String) methods

    29  * @author Valerie Peng

    30  */

    31 

    32 import java.util.*;

    33 import java.nio.*;

    34 

    35 import java.security.*;

    36 import java.security.spec.*;

    37 

    38 import javax.crypto.*;

    39 import javax.crypto.spec.*;

    40 

    41 public class GetMaxAllowed {

    42 

    43     private static void runTest(boolean isUnlimited) throws Exception {

    44         System.out.println("Testing " + (isUnlimited? "un":"") +

    45                            "limited policy...");

    46 

    47         String algo = "Blowfish";

    48         int keyLength = Cipher.getMaxAllowedKeyLength(algo);

    49         AlgorithmParameterSpec spec = Cipher.getMaxAllowedParameterSpec(algo);

    50         if (isUnlimited) {

    51             if ((keyLength != Integer.MAX_VALUE) || (spec != null)) {

    52                 throw new Exception("Check for " + algo +

    53                                     " failed under unlimited policy");

    54             }

    55         } else {

    56             if ((keyLength != 128) || (spec != null)) {

    57                 throw new Exception("Check for " + algo +

    58                                     " failed under default policy");

    59             }

    60         }

    61         algo = "RC5";

    62         keyLength = Cipher.getMaxAllowedKeyLength(algo);

    63         RC5ParameterSpec rc5param = (RC5ParameterSpec)

    64             Cipher.getMaxAllowedParameterSpec(algo);

    65         if (isUnlimited) {

    66             if ((keyLength != Integer.MAX_VALUE) || (rc5param != null)) {

    67                 throw new Exception("Check for " + algo +

    68                                     " failed under unlimited policy");

    69             }

    70         } else {

    71             if ((keyLength != 128) || (rc5param.getRounds() != 12) ||

    72                 (rc5param.getVersion() != Integer.MAX_VALUE) ||

    73                 (rc5param.getWordSize() != Integer.MAX_VALUE)) {

    74                 throw new Exception("Check for " + algo +

    75                                     " failed under default policy");

    76             }

    77         }

    78         System.out.println("All tests passed");

    79     }

    80 

    81     public static void main(String[] args) throws Exception {

    82         // decide if the installed jurisdiction policy file is the

    83         // unlimited version

    84         boolean isUnlimited = true;

    85         Cipher c = Cipher.getInstance("AES", "SunJCE");

    86         try {

    87             c.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(new byte[24], "AES"));

    88         } catch (InvalidKeyException ike) {

    89             isUnlimited = false;

    90         }

    91         runTest(isUnlimited);

    92     }

    93 }