| /* |
| * Copyright (c) 2004, 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 5078280 |
| * @summary make sure generated key pairs are exactly the requested length |
| * @author Andreas Sterbenz |
| */ |
| |
| import java.security.*; |
| import java.security.interfaces.*; |
| |
| public class TestKeyPairGeneratorLength { |
| |
| public static void main(String[] args) throws Exception { |
| test(512); |
| test(513); |
| System.out.println("Done."); |
| } |
| |
| private static void test(int len) throws Exception { |
| KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", "SunRsaSign"); |
| kpg.initialize(len); |
| for (int i = 0; i < 6; i++) { |
| System.out.println("Generating keypair " + len + " bit keypair " + (i + 1) + "..."); |
| KeyPair kp = kpg.generateKeyPair(); |
| RSAPublicKey key = (RSAPublicKey)kp.getPublic(); |
| int k = key.getModulus().bitLength(); |
| if (k != len) { |
| throw new Exception("length mismatch: " + k); |
| } |
| } |
| } |
| |
| } |