137 lines
5.0 KiB
Java
137 lines
5.0 KiB
Java
/*
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* Copyright (c) 2016, 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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/* @test
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* @bug 8051408 8158534
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* @summary Make sure DrbgParameters coded as specified
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* @library /test/lib
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* @build jdk.test.lib.Asserts
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* @run main DrbgParametersSpec
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*/
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import jdk.test.lib.Asserts;
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import java.security.DrbgParameters;
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import java.util.Arrays;
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import static java.security.DrbgParameters.Capability.*;
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public class DrbgParametersSpec {
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public static void main(String args[]) throws Exception {
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byte[] p, np1, np2;
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// Capability
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Asserts.assertTrue(PR_AND_RESEED.supportsPredictionResistance());
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Asserts.assertTrue(PR_AND_RESEED.supportsReseeding());
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Asserts.assertFalse(RESEED_ONLY.supportsPredictionResistance());
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Asserts.assertTrue(RESEED_ONLY.supportsReseeding());
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Asserts.assertFalse(NONE.supportsPredictionResistance());
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Asserts.assertFalse(NONE.supportsReseeding());
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// Instantiation
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p = "Instantiation".getBytes();
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DrbgParameters.Instantiation ins = DrbgParameters
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.instantiation(192, RESEED_ONLY, p);
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Asserts.assertTrue(ins.getStrength() == 192);
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Asserts.assertTrue(ins.getCapability() == RESEED_ONLY);
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np1 = ins.getPersonalizationString();
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np2 = ins.getPersonalizationString();
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// Getter outputs have same content but not the same object
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Asserts.assertTrue(Arrays.equals(np1, p));
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Asserts.assertTrue(Arrays.equals(np2, p));
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Asserts.assertNE(np1, np2);
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// Changes to original input has no affect on object
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p[0] = 'X';
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np2 = ins.getPersonalizationString();
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Asserts.assertTrue(Arrays.equals(np1, np2));
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ins = DrbgParameters.instantiation(-1, NONE, null);
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Asserts.assertNull(ins.getPersonalizationString());
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iae(() -> DrbgParameters.instantiation(-2, NONE, null));
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npe(() -> DrbgParameters.instantiation(-1, null, null));
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// NextBytes
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p = "NextBytes".getBytes();
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DrbgParameters.NextBytes nb = DrbgParameters
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.nextBytes(192, true, p);
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Asserts.assertTrue(nb.getStrength() == 192);
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Asserts.assertTrue(nb.getPredictionResistance());
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np1 = nb.getAdditionalInput();
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np2 = nb.getAdditionalInput();
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// Getter outputs have same content but not the same object
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Asserts.assertTrue(Arrays.equals(np1, p));
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Asserts.assertTrue(Arrays.equals(np2, p));
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Asserts.assertNE(np1, np2);
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// Changes to original input has no affect on object
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p[0] = 'X';
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np2 = nb.getAdditionalInput();
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Asserts.assertTrue(Arrays.equals(np1, np2));
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iae(() -> DrbgParameters.nextBytes(-2, false, null));
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// Reseed
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p = "Reseed".getBytes();
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DrbgParameters.Reseed rs = DrbgParameters
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.reseed(true, p);
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Asserts.assertTrue(rs.getPredictionResistance());
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np1 = rs.getAdditionalInput();
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np2 = rs.getAdditionalInput();
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// Getter outputs have same content but not the same object
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Asserts.assertTrue(Arrays.equals(np1, p));
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Asserts.assertTrue(Arrays.equals(np2, p));
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Asserts.assertNE(np1, np2);
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// Changes to original input has no affect on object
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p[0] = 'X';
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np2 = rs.getAdditionalInput();
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Asserts.assertTrue(Arrays.equals(np1, np2));
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}
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static void iae(RunnableWithException r) throws Exception {
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checkException(r, IllegalArgumentException.class);
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}
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static void npe(RunnableWithException r) throws Exception {
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checkException(r, NullPointerException.class);
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}
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interface RunnableWithException {
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void run() throws Exception;
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}
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static void checkException(RunnableWithException r, Class ex)
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throws Exception {
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try {
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r.run();
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} catch (Exception e) {
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if (ex.isAssignableFrom(e.getClass())) {
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return;
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}
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throw e;
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}
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throw new Exception("No exception thrown");
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}
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}
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