| /* |
| * 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. |
| */ |
| |
| import java.security.SecureRandom; |
| import java.security.Security; |
| |
| /** |
| * @test |
| * @bug 8051408 |
| * @summary make sure nextBytes etc can be called before setSeed |
| * @run main/othervm -Djava.security.egd=file:/dev/urandom AutoReseed |
| */ |
| public class AutoReseed { |
| |
| public static void main(String[] args) throws Exception { |
| SecureRandom sr; |
| boolean pass = true; |
| for (String mech : new String[]{"Hash_DRBG", "HMAC_DRBG", "CTR_DRBG"}) { |
| try { |
| System.out.println("Testing " + mech + "..."); |
| Security.setProperty("securerandom.drbg.config", mech); |
| |
| // Check auto reseed works |
| sr = SecureRandom.getInstance("DRBG"); |
| sr.nextInt(); |
| sr = SecureRandom.getInstance("DRBG"); |
| sr.reseed(); |
| sr = SecureRandom.getInstance("DRBG"); |
| sr.generateSeed(10); |
| } catch (Exception e) { |
| pass = false; |
| e.printStackTrace(System.out); |
| } |
| } |
| if (!pass) { |
| throw new RuntimeException("At least one test case failed"); |
| } |
| } |
| } |
