1 /*

     2  * Copyright (c) 1998, 2014, 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 import java.security.SecureRandom;

    25 import javax.crypto.spec.SecretKeySpec;

    26 

    27 /**

    28  * Helper class.

    29  */

    30 class Utils {

    31 

    32     static final int KEY_SIZE = 70;

    33 

    34     static final String[] MAC_ALGOS = {"HmacMD5", "HmacSHA1", "HmacSHA224",

    35         "HmacSHA256", "HmacSHA384", "HmacSHA512"};

    36 

    37     /**

    38      * Get SecretKeySpec.

    39      */

    40     static SecretKeySpec getSecretKeySpec() {

    41         SecureRandom srdm = new SecureRandom();

    42         byte[] keyVal = new byte[KEY_SIZE];

    43         srdm.nextBytes(keyVal);

    44         return new SecretKeySpec(keyVal, "HMAC");

    45     }

    46 

    47     static void runTests(MacTest... tests) {

    48         boolean success = true;

    49         for (MacTest test : tests) {

    50             success &= runTest(test);

    51         }

    52 

    53         if (success) {

    54             System.out.println("Test passed");

    55         } else {

    56             throw new RuntimeException("Test failed");

    57         }

    58     }

    59 

    60     private static boolean runTest(MacTest test) {

    61         boolean success = true;

    62         for (String alg : MAC_ALGOS) {

    63             try {

    64                 System.out.println("Test " + alg);

    65                 test.doTest(alg);

    66             } catch (Exception e) {

    67                 System.out.println("Unexpected exception:");

    68                 e.printStackTrace();

    69                 success = false;

    70             }

    71         }

    72 

    73         return success;

    74     }

    75 }

    76 

    77 interface MacTest {

    78     void doTest(String alg) throws Exception;

    79 }