1 /*
   2  * Copyright (c) 2003, 2016, 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.token
  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 }