0N/A/*
2362N/A * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A/**
0N/A * @test
0N/A * @bug 4856966
0N/A * @summary Test the MessageDigest.update(ByteBuffer) method
0N/A * @author Andreas Sterbenz
0N/A * @library ..
0N/A */
0N/A
0N/Aimport java.util.*;
0N/Aimport java.nio.*;
0N/A
0N/Aimport java.security.*;
0N/A
0N/Apublic class ByteBuffers extends PKCS11Test {
0N/A
0N/A public static void main(String[] args) throws Exception {
0N/A main(new ByteBuffers());
0N/A }
0N/A
0N/A public void main(Provider p) throws Exception {
0N/A if (p.getService("MessageDigest", "MD5") == null) {
0N/A System.out.println("Provider does not support MD5, skipping");
0N/A return;
0N/A }
0N/A
0N/A Random random = new Random();
0N/A int n = 10 * 1024;
0N/A byte[] t = new byte[n];
0N/A random.nextBytes(t);
0N/A
0N/A MessageDigest md = MessageDigest.getInstance("MD5", p);
0N/A byte[] d1 = md.digest(t);
0N/A
0N/A // test 1: ByteBuffer with an accessible backing array
0N/A ByteBuffer b1 = ByteBuffer.allocate(n + 256);
0N/A b1.position(random.nextInt(256));
0N/A b1.limit(b1.position() + n);
0N/A ByteBuffer b2 = b1.slice();
0N/A b2.put(t);
0N/A b2.clear();
0N/A byte[] d2 = digest(md, b2, random);
0N/A if (Arrays.equals(d1, d2) == false) {
0N/A throw new Exception("Test 1 failed");
0N/A }
0N/A
0N/A // test 2: direct ByteBuffer
0N/A ByteBuffer b3 = ByteBuffer.allocateDirect(t.length);
0N/A b3.put(t);
0N/A b3.clear();
0N/A byte[] d3 = digest(md, b3, random);
0N/A if (Arrays.equals(d1, d2) == false) {
0N/A throw new Exception("Test 2 failed");
0N/A }
0N/A
0N/A // test 3: ByteBuffer without an accessible backing array
0N/A b2.clear();
0N/A ByteBuffer b4 = b2.asReadOnlyBuffer();
0N/A byte[] d4 = digest(md, b4, random);
0N/A if (Arrays.equals(d1, d2) == false) {
0N/A throw new Exception("Test 3 failed");
0N/A }
0N/A System.out.println("All tests passed");
0N/A }
0N/A
0N/A private static byte[] digest(MessageDigest md, ByteBuffer b, Random random) throws Exception {
0N/A int lim = b.limit();
0N/A b.limit(random.nextInt(lim));
0N/A md.update(b);
0N/A if (b.hasRemaining()) {
0N/A throw new Exception("Buffer not consumed");
0N/A }
0N/A b.limit(lim);
0N/A md.update(b);
0N/A if (b.hasRemaining()) {
0N/A throw new Exception("Buffer not consumed");
0N/A }
0N/A return md.digest();
0N/A }
0N/A}