1 /*

     2  * Copyright (c) 2011, 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 /**

    25  * @test

    26  * @bug 7031343

    27  * @summary Provide API changes to support GCM AEAD ciphers

    28  * @author Brad Wetmore

    29  */

    30 

    31 import javax.crypto.*;

    32 import javax.crypto.spec.*;

    33 import java.nio.ByteBuffer;

    34 

    35 /*

    36  * At this point in time, we can't really do any testing since only the API

    37  * is available, the underlying implementation doesn't exist yet.  Test

    38  * what we can...

    39  */

    40 public class GCMAPI {

    41 

    42     // 16 elements

    43     private static byte[] bytes = new byte[] {

    44         0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,

    45         0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f };

    46 

    47     private static int failed = 0;

    48     private static Cipher c;

    49 

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

    51         c = Cipher.getInstance("AES");

    52         c.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(new byte[16], "AES"));

    53 

    54         updateAADFail((byte[]) null);

    55         updateAADPass(bytes);

    56 

    57         updateAADFail(null, 2, 4);

    58         updateAADFail(bytes, -2, 4);

    59         updateAADFail(bytes, 2, -4);

    60         updateAADFail(bytes, 2, 15);  // one too many

    61 

    62         updateAADPass(bytes, 2, 14);  // ok.

    63         updateAADPass(bytes, 4, 4);

    64         updateAADPass(bytes, 0, 0);

    65 

    66         ByteBuffer bb = ByteBuffer.wrap(bytes);

    67 

    68         updateAADFail((ByteBuffer) null);

    69         updateAADPass(bb);

    70 

    71         if (failed != 0) {

    72             throw new Exception("Test(s) failed");

    73         }

    74     }

    75 

    76     private static void updateAADPass(byte[] src) {

    77         try {

    78             c.updateAAD(src);

    79         } catch (UnsupportedOperationException e) {

    80             // swallow

    81         }catch (Exception e) {

    82             e.printStackTrace();

    83             failed++;

    84         }

    85     }

    86 

    87     private static void updateAADFail(byte[] src) {

    88         try {

    89             c.updateAAD(src);

    90             new Exception("Didn't Fail as Expected").printStackTrace();

    91             failed++;

    92         } catch (IllegalArgumentException e) {

    93             // swallow

    94         }

    95     }

    96 

    97     private static void updateAADPass(byte[] src, int offset, int len) {

    98         try {

    99             c.updateAAD(src, offset, len);

   100         } catch (UnsupportedOperationException e) {

   101             // swallow

   102         } catch (Exception e) {

   103             e.printStackTrace();

   104             failed++;

   105         }

   106     }

   107 

   108     private static void updateAADFail(byte[] src, int offset, int len) {

   109         try {

   110             c.updateAAD(src, offset, len);

   111             new Exception("Didn't Fail as Expected").printStackTrace();

   112             failed++;

   113         } catch (IllegalArgumentException e) {

   114             // swallow

   115         }

   116     }

   117 

   118     private static void updateAADPass(ByteBuffer src) {

   119         try {

   120             c.updateAAD(src);

   121         } catch (UnsupportedOperationException e) {

   122             // swallow

   123         }catch (Exception e) {

   124             e.printStackTrace();

   125             failed++;

   126         }

   127     }

   128 

   129     private static void updateAADFail(ByteBuffer src) {

   130         try {

   131             c.updateAAD(src);

   132             new Exception("Didn't Fail as Expected").printStackTrace();

   133             failed++;

   134         } catch (IllegalArgumentException e) {

   135             // swallow

   136         }

   137     }

   138 }