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/*
* Copyright (c) 2012, 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.
*/
// program to generate rsakeys.ks. does not need to run during testing
// checked into the workspace so that the keystore file can be recreated
// in the future if needed.
// @author Andreas Sterbenz
import java.io.*;
import java.math.BigInteger;
import java.util.*;
import java.security.*;
import java.security.cert.*;
import java.security.interfaces.*;
import java.security.spec.*;
import sun.security.x509.*;
public class GenKeyStore {
static final char[] password = "test12".toCharArray();
private static X509Certificate getCertificate(String suffix, PublicKey publicKey, PrivateKey privateKey) throws Exception {
X500Name name = new X500Name("CN=Dummy Certificate " + suffix);
String algorithm = "SHA1with" + publicKey.getAlgorithm();
Date date = new Date();
AlgorithmId algID = AlgorithmId.getAlgorithmId(algorithm);
X509CertInfo certInfo = new X509CertInfo();
certInfo.set(X509CertInfo.VERSION, new CertificateVersion(CertificateVersion.V1));
certInfo.set(X509CertInfo.SERIAL_NUMBER, new CertificateSerialNumber(1));
certInfo.set(X509CertInfo.ALGORITHM_ID, new CertificateAlgorithmId(algID));
certInfo.set(X509CertInfo.SUBJECT, name);
certInfo.set(X509CertInfo.ISSUER, name);
certInfo.set(X509CertInfo.KEY, new CertificateX509Key(publicKey));
certInfo.set(X509CertInfo.VALIDITY, new CertificateValidity(date, date));
X509CertImpl cert = new X509CertImpl(certInfo);
cert.sign(privateKey, algorithm);
return cert;
}
private static void addToKeyStore(KeyStore ks, KeyPair kp, String name) throws Exception {
PublicKey pubKey = kp.getPublic();
PrivateKey privKey = kp.getPrivate();
X509Certificate cert = getCertificate(name, pubKey, privKey);
ks.setKeyEntry(name, privKey, password, new X509Certificate[] {cert});
}
private static void generateKeyPair(KeyStore ks, int keyLength, String alias) throws Exception {
System.out.println("Generating " + keyLength + " keypair " + alias + "...");
KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", "SunRsaSign");
kpg.initialize(keyLength);
KeyPair kp = kpg.generateKeyPair();
addToKeyStore(ks, kp, alias);
}
static KeyStore ks;
public static void main(String[] args) throws Exception {
long start = System.currentTimeMillis();
KeyStore ks = KeyStore.getInstance("JKS");
ks.load(null, null);
generateKeyPair(ks, 512, "rsa512a");
generateKeyPair(ks, 512, "rsa512b");
generateKeyPair(ks, 1024, "rsa1024a");
generateKeyPair(ks, 1024, "rsa1024b");
generateKeyPair(ks, 2048, "rsa2048a");
generateKeyPair(ks, 2048, "rsa2048b");
generateKeyPair(ks, 4096, "rsa4096a");
// only one 4096 bit keys and none longer than that
// that would slow down the other tests too much
// on old machines
// generateKeyPair(ks, 4096, "rsa4096b");
// generateKeyPair(ks, 8192, "rsa8192a");
// generateKeyPair(ks, 8192, "rsa8192b");
OutputStream out = new FileOutputStream("rsakeys.ks");
ks.store(out, password);
out.close();
long stop = System.currentTimeMillis();
System.out.println("Done (" + (stop - start) + " ms).");
}
}
¤ Dauer der Verarbeitung: 0.16 Sekunden
(vorverarbeitet)
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