90 lines
3.0 KiB
Java
90 lines
3.0 KiB
Java
/*
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* Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.nio.ByteBuffer;
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import java.security.InvalidKeyException;
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import java.security.NoSuchAlgorithmException;
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import java.security.NoSuchProviderException;
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import javax.crypto.Mac;
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import javax.crypto.SecretKey;
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/**
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* @test
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* @bug 8048603
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* @summary Checks if PBE algorithms work fine with large buffer
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* @author Alexander Fomin
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* @build Utils
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* @run main LargeByteBufferTest
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*/
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public class LargeByteBufferTest implements MacTest {
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private static final int BUFFER_SIZE = 65535;
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/**
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* @param args the command line arguments
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*/
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public static void main(String[] args) {
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Utils.runTests(new LargeByteBufferTest());
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}
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@Override
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public void doTest(String alg) throws NoSuchAlgorithmException,
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InvalidKeyException, NoSuchProviderException {
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SecretKey key = Utils.getSecretKeySpec();
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// instantiate Mac object and init it with a SecretKey
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Mac mac = Mac.getInstance(alg, "SunJCE");
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mac.init(key);
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// prepare buffer
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byte[] data = new byte[BUFFER_SIZE];
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for (int i = 0; i < BUFFER_SIZE; i++) {
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data[i] = (byte) (i % 256);
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}
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ByteBuffer buf = ByteBuffer.wrap(data);
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int limitBefore = buf.limit();
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mac.update(buf);
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mac.doFinal();
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int limitAfter = buf.limit();
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int positonAfter = buf.position();
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if (limitAfter != limitBefore) {
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System.out.println("limit after = " + limitAfter);
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System.out.println("limit before = " + limitBefore);
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throw new RuntimeException("Test failed: "
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+ "limit of buffer has been chenged.");
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}
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if (positonAfter != limitAfter) {
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System.out.println("position after = " + positonAfter);
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System.out.println("limit after = " + limitAfter);
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throw new RuntimeException("Test failed: "
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+ "position of buffer isn't equal to its limit");
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}
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}
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}
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