1 /*

     2  * Copyright (c) 2003, 2017, 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 4856966

    27  * @summary Test the Signature.update(ByteBuffer) method

    28  * @author Andreas Sterbenz

    29  * @library ..

    30  * @key randomness

    31  * @modules jdk.crypto.cryptoki

    32  * @run main/othervm ByteBuffers

    33  * @run main/othervm ByteBuffers sm

    34  */

    35 

    36 import java.nio.ByteBuffer;

    37 import java.security.KeyPair;

    38 import java.security.KeyPairGenerator;

    39 import java.security.Provider;

    40 import java.security.Signature;

    41 import java.util.Random;

    42 

    43 public class ByteBuffers extends PKCS11Test {

    44 

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

    46         main(new ByteBuffers(), args);

    47     }

    48 

    49     @Override

    50     public void main(Provider p) throws Exception {

    51 

    52         /*

    53          * Use Solaris SPARC 11.2 or later to avoid an intermittent failure

    54          * when running SunPKCS11-Solaris provider (8044554)

    55          */

    56         if (p.getName().equals("SunPKCS11-Solaris") &&

    57             props.getProperty("os.name").equals("SunOS") &&

    58             props.getProperty("os.arch").equals("sparcv9") &&

    59             props.getProperty("os.version").compareTo("5.11") <= 0 &&

    60             getDistro().compareTo("11.2") < 0) {

    61 

    62             System.out.println("SunPKCS11-Solaris provider requires " +

    63                 "Solaris SPARC 11.2 or later, skipping");

    64             return;

    65         }

    66 

    67         Random random = new Random();

    68         int n = 10 * 1024;

    69         byte[] t = new byte[n];

    70         random.nextBytes(t);

    71 

    72         KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", p);

    73         kpg.initialize(512);

    74         KeyPair kp = kpg.generateKeyPair();

    75 

    76         Signature sig = Signature.getInstance("MD5withRSA", p);

    77         sig.initSign(kp.getPrivate());

    78         sig.update(t);

    79         byte[] signature = sig.sign();

    80 

    81         sig.initVerify(kp.getPublic());

    82 

    83         // test 1: ByteBuffer with an accessible backing array

    84         ByteBuffer b1 = ByteBuffer.allocate(n + 256);

    85         b1.position(random.nextInt(256));

    86         b1.limit(b1.position() + n);

    87         ByteBuffer b2 = b1.slice();

    88         b2.put(t);

    89         b2.clear();

    90         verify(sig, signature, b2, random);

    91 

    92         // test 2: direct ByteBuffer

    93         ByteBuffer b3 = ByteBuffer.allocateDirect(t.length);

    94         b3.put(t);

    95         b3.clear();

    96         verify(sig, signature, b3, random);

    97 

    98         // test 3: ByteBuffer without an accessible backing array

    99         b2.clear();

   100         ByteBuffer b4 = b2.asReadOnlyBuffer();

   101         verify(sig, signature, b4, random);

   102 

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

   104     }

   105 

   106     private static void verify(Signature sig, byte[] signature, ByteBuffer b, Random random) throws Exception {

   107         int lim = b.limit();

   108         b.limit(random.nextInt(lim));

   109         sig.update(b);

   110         if (b.hasRemaining()) {

   111             throw new Exception("Buffer not consumed");

   112         }

   113         b.limit(lim);

   114         sig.update(b);

   115         if (b.hasRemaining()) {

   116             throw new Exception("Buffer not consumed");

   117         }

   118         if (sig.verify(signature) == false) {

   119             throw new Exception("Signature did not verify");

   120         }

   121     }

   122 }