113 lines
3.8 KiB
Java
113 lines
3.8 KiB
Java
/*
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* Copyright (c) 2015, 2017, 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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/*
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* @test
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* @bug 8023546 8151834
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* @modules java.base/sun.security.x509
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* java.base/sun.security.tools.keytool
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* @summary Test prime exponent (p) lengths 63 and 65 bytes with SunMSCAPI.
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* The seed 76 has the fastest test execution now (only 5 rounds) and is
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* hard-coded in run tag. This number might change if algorithms for
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* RSA key pair generation or BigInteger prime searching gets updated.
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* @requires os.family == "windows"
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* @run main SmallPrimeExponentP 76
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*/
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import sun.security.tools.keytool.CertAndKeyGen;
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import sun.security.x509.X500Name;
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import java.security.KeyStore;
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import java.security.SecureRandom;
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import java.security.cert.X509Certificate;
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import java.security.interfaces.RSAPrivateCrtKey;
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import java.util.Random;
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public class SmallPrimeExponentP {
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public static void main(String argv[]) throws Exception {
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long seed = Long.parseLong(argv[0]);
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System.out.println("Seed for SecureRandom = " + seed + "L");
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KeyStore ks = KeyStore.getInstance("Windows-MY");
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ks.load(null, null);
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CertAndKeyGen ckg = new CertAndKeyGen("RSA", "SHA1withRSA");
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ckg.setRandom(new MySecureRandom(seed));
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String alias = "anything";
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int count = 0;
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boolean see63 = false;
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boolean see65 = false;
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while (!see63 || !see65) {
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ckg.generate(1024);
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RSAPrivateCrtKey k = (RSAPrivateCrtKey) ckg.getPrivateKey();
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int len = k.getPrimeExponentP().toByteArray().length;
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System.out.println("Length of P = " + len);
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if (len == 63 || len == 65) {
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if (len == 63) {
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if (see63) {
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continue;
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} else {
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see63 = true;
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}
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}
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if (len == 65) {
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if (see65) {
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continue;
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} else {
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see65 = true;
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}
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}
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ks.setKeyEntry(alias, k, null, new X509Certificate[]{
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ckg.getSelfCertificate(new X500Name("CN=Me"), 1000)
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});
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count++;
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}
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}
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// Because of JDK-8185844, it has to reload the key store after
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// deleting an entry.
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for (int i = 0; i < count; i++) {
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ks.deleteEntry(alias);
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ks.load(null, null);
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}
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}
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static class MySecureRandom extends SecureRandom {
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final Random random;
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public MySecureRandom(long seed) {
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random = new Random(seed);
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}
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@Override
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public void nextBytes(byte[] bytes) {
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random.nextBytes(bytes);
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}
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}
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}
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