--- /dev/null Wed Mar 23 16:12:20 2016 +++ new/test/sun/security/provider/DSA/SupportedDSAParaGen.java Wed Mar 23 16:12:20 2016 @@ -0,0 +1,82 @@ +/* + * Copyright (c) 2012, 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 8072452 + * @summary Support DHE sizes up to 8192-bits + * @run main/timeout=300 SupportedDSAParaGen 1024 160 + * @run main/timeout=300 SupportedDSAParaGen 2048 224 + * @run main/timeout=300 SupportedDSAParaGen 2048 256 + * @run main/timeout=450 SupportedDSAParaGen 3072 256 + */ +import java.security.*; +import java.security.spec.*; +import java.security.interfaces.*; + +public class SupportedDSAParaGen { + + public static void main(String[] args) throws Exception { + AlgorithmParameterGenerator apg = + AlgorithmParameterGenerator.getInstance("DSA", "SUN"); + + DSAGenParameterSpec spec = new DSAGenParameterSpec( + Integer.valueOf(args[0]).intValue(), + Integer.valueOf(args[1]).intValue()); + + System.out.println("Generating (" + spec.getPrimePLength() + + ", " + spec.getSubprimeQLength() + ") DSA Parameters"); + long start = System.currentTimeMillis(); + apg.init(spec, null); + AlgorithmParameters param = apg.generateParameters(); + long stop = System.currentTimeMillis(); + System.out.println("Time: " + (stop - start) + " ms."); + checkParamStrength(param, spec); + } + + private static void checkParamStrength(AlgorithmParameters param, + DSAGenParameterSpec genParam) throws Exception { + + String algo = param.getAlgorithm(); + if (!algo.equalsIgnoreCase("DSA")) { + throw new Exception("Unexpected type of parameters: " + algo); + } + + DSAParameterSpec spec = param.getParameterSpec(DSAParameterSpec.class); + int valueL = spec.getP().bitLength(); + int strength = genParam.getPrimePLength(); + if (strength != valueL) { + System.out.println( + "P: Expected " + strength + " but actual " + valueL); + throw new Exception("Wrong P strength"); + } + + int valueN = spec.getQ().bitLength(); + strength = genParam.getSubprimeQLength(); + if (strength != valueN) { + System.out.println( + "Q: Expected " + strength + " but actual " + valueN); + throw new Exception("Wrong Q strength"); + } + } +}