3231N/A/*
3481N/A * Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved.
3481N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3231N/A *
3231N/A * This code is free software; you can redistribute it and/or modify it
3231N/A * under the terms of the GNU General Public License version 2 only, as
3231N/A * published by the Free Software Foundation.
3231N/A *
3231N/A * This code is distributed in the hope that it will be useful, but WITHOUT
3231N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
3231N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
3231N/A * version 2 for more details (a copy is included in the LICENSE file that
3231N/A * accompanied this code).
3231N/A *
3231N/A * You should have received a copy of the GNU General Public License version
3231N/A * 2 along with this work; if not, write to the Free Software Foundation,
3231N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
3231N/A *
3231N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
3231N/A * or visit www.oracle.com if you need additional information or have any
3231N/A * questions.
3231N/A */
3231N/A
3231N/A/*
3231N/A * @test
3231N/A * @bug 6998583
3231N/A * @summary NativeSeedGenerator is making 8192 byte read requests from
3231N/A * entropy pool on each init.
3231N/A * @run main SeedGeneratorChoice
3231N/A * @run main/othervm -Djava.security.egd=file:/dev/random SeedGeneratorChoice
3231N/A * @run main/othervm -Djava.security.egd=file:filename SeedGeneratorChoice
3231N/A */
3231N/A
3231N/A/*
3231N/A * Side testcase introduced to ensure changes for 6998583 will always
3231N/A * succeed in falling back to ThreadedSeedGenerator if issues are found
3231N/A * with the native OS generator request. We should never see an exception
3231N/A * causing exit.
3231N/A * We should always fall back to the ThreadedSeedGenerator if exceptions
3231N/A * are encountered with user defined source of entropy.
3231N/A */
3231N/A
3231N/Aimport java.security.SecureRandom;
3231N/A
3231N/Apublic class SeedGeneratorChoice {
3231N/A
3231N/A public static void main(String... arguments) throws Exception {
3231N/A byte[] bytes;
3231N/A SecureRandom prng = SecureRandom.getInstance("SHA1PRNG");
3231N/A bytes = prng.generateSeed(1);
3231N/A }
3231N/A}