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