| /* |
| * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @bug 8051408 8158534 |
| * @summary Make sure DrbgParameters coded as specified |
| * @library /test/lib |
| * @build jdk.test.lib.Asserts |
| * @run main DrbgParametersSpec |
| */ |
| |
| import jdk.test.lib.Asserts; |
| |
| import java.security.DrbgParameters; |
| import java.util.Arrays; |
| |
| import static java.security.DrbgParameters.Capability.*; |
| |
| public class DrbgParametersSpec { |
| |
| public static void main(String args[]) throws Exception { |
| |
| byte[] p, np1, np2; |
| |
| // Capability |
| Asserts.assertTrue(PR_AND_RESEED.supportsPredictionResistance()); |
| Asserts.assertTrue(PR_AND_RESEED.supportsReseeding()); |
| Asserts.assertFalse(RESEED_ONLY.supportsPredictionResistance()); |
| Asserts.assertTrue(RESEED_ONLY.supportsReseeding()); |
| Asserts.assertFalse(NONE.supportsPredictionResistance()); |
| Asserts.assertFalse(NONE.supportsReseeding()); |
| |
| // Instantiation |
| p = "Instantiation".getBytes(); |
| DrbgParameters.Instantiation ins = DrbgParameters |
| .instantiation(192, RESEED_ONLY, p); |
| Asserts.assertTrue(ins.getStrength() == 192); |
| Asserts.assertTrue(ins.getCapability() == RESEED_ONLY); |
| np1 = ins.getPersonalizationString(); |
| np2 = ins.getPersonalizationString(); |
| // Getter outputs have same content but not the same object |
| Asserts.assertTrue(Arrays.equals(np1, p)); |
| Asserts.assertTrue(Arrays.equals(np2, p)); |
| Asserts.assertNE(np1, np2); |
| // Changes to original input has no affect on object |
| p[0] = 'X'; |
| np2 = ins.getPersonalizationString(); |
| Asserts.assertTrue(Arrays.equals(np1, np2)); |
| |
| ins = DrbgParameters.instantiation(-1, NONE, null); |
| Asserts.assertNull(ins.getPersonalizationString()); |
| |
| iae(() -> DrbgParameters.instantiation(-2, NONE, null)); |
| npe(() -> DrbgParameters.instantiation(-1, null, null)); |
| |
| // NextBytes |
| p = "NextBytes".getBytes(); |
| DrbgParameters.NextBytes nb = DrbgParameters |
| .nextBytes(192, true, p); |
| Asserts.assertTrue(nb.getStrength() == 192); |
| Asserts.assertTrue(nb.getPredictionResistance()); |
| np1 = nb.getAdditionalInput(); |
| np2 = nb.getAdditionalInput(); |
| // Getter outputs have same content but not the same object |
| Asserts.assertTrue(Arrays.equals(np1, p)); |
| Asserts.assertTrue(Arrays.equals(np2, p)); |
| Asserts.assertNE(np1, np2); |
| // Changes to original input has no affect on object |
| p[0] = 'X'; |
| np2 = nb.getAdditionalInput(); |
| Asserts.assertTrue(Arrays.equals(np1, np2)); |
| |
| iae(() -> DrbgParameters.nextBytes(-2, false, null)); |
| |
| // Reseed |
| p = "Reseed".getBytes(); |
| DrbgParameters.Reseed rs = DrbgParameters |
| .reseed(true, p); |
| Asserts.assertTrue(rs.getPredictionResistance()); |
| np1 = rs.getAdditionalInput(); |
| np2 = rs.getAdditionalInput(); |
| // Getter outputs have same content but not the same object |
| Asserts.assertTrue(Arrays.equals(np1, p)); |
| Asserts.assertTrue(Arrays.equals(np2, p)); |
| Asserts.assertNE(np1, np2); |
| // Changes to original input has no affect on object |
| p[0] = 'X'; |
| np2 = rs.getAdditionalInput(); |
| Asserts.assertTrue(Arrays.equals(np1, np2)); |
| } |
| |
| static void iae(RunnableWithException r) throws Exception { |
| checkException(r, IllegalArgumentException.class); |
| } |
| |
| static void npe(RunnableWithException r) throws Exception { |
| checkException(r, NullPointerException.class); |
| } |
| |
| interface RunnableWithException { |
| void run() throws Exception; |
| } |
| |
| static void checkException(RunnableWithException r, Class ex) |
| throws Exception { |
| try { |
| r.run(); |
| } catch (Exception e) { |
| if (ex.isAssignableFrom(e.getClass())) { |
| return; |
| } |
| throw e; |
| } |
| throw new Exception("No exception thrown"); |
| } |
| } |