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Java example source code file (AddPrivateKey.java)

This example Java source code file (AddPrivateKey.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

dsa, exception, keyfactory, keystore, list, max_line, pkcs11, privatekey, privatekeyentry, publickey, random, security, signature, string, util, x509certificate

The AddPrivateKey.java Java example source code

/*
 * Copyright (c) 2006, 2011, 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 6414980
 * @summary Test that the PKCS#11 KeyStore handles RSA, DSA, and EC keys
 * @author Andreas Sterbenz
 * @library ..
 * @run main/othervm AddPrivateKey
 */

import java.io.*;
import java.util.*;

import java.security.*;
import java.security.KeyStore.*;
import java.security.cert.*;

// this test is currently only run for the NSS KeyStore provider, but it
// is really a generic KeyStore test so it should be modified to run for
// all providers.
public class AddPrivateKey extends SecmodTest {

    public static void main(String[] args) throws Exception {
        if (initSecmod() == false) {
            return;
        }

        String configName = BASE + SEP + "nss.cfg";
        Provider p = getSunPKCS11(configName);

        boolean supportsEC = (p.getService("KeyFactory", "EC") != null);

        System.out.println(p);
        System.out.println();
        Security.addProvider(p);

        KeyStore ks = KeyStore.getInstance("PKCS11", p);
        ks.load(null, password);
        for (String alias : aliases(ks)) {
            System.out.println("Deleting: " + alias);
            ks.deleteEntry(alias);
        }

        KeyStore jks = KeyStore.getInstance("JKS");
        InputStream in = new FileInputStream(new File(BASE, "keystore.jks"));
        char[] jkspass = "passphrase".toCharArray();
        jks.load(in, jkspass);
        List<PrivateKeyEntry> entries = new ArrayList();
        for (String alias : Collections.list(jks.aliases())) {
            if (jks.entryInstanceOf(alias, PrivateKeyEntry.class)) {
                PrivateKeyEntry entry = (PrivateKeyEntry)jks.getEntry(alias, new PasswordProtection(jkspass));
                String algorithm = entry.getPrivateKey().getAlgorithm();
                System.out.println("-Entry " + alias + " (" + algorithm + ")");
                if ((supportsEC == false) && algorithm.equals("EC")) {
                    System.out.println("EC not supported by provider, skipping");
                    continue;
                }
                if ((supportsEC == false) && algorithm.equals("DSA")) {
                    System.out.println("Provider does not appear to have CKA_NETSCAPE_DB fix, skipping");
                    continue;
                }
                test(p, entry);
            } // else ignore
        }
        System.out.println("OK");
    }

    private static List<String> aliases(KeyStore ks) throws KeyStoreException {
        return Collections.list(ks.aliases());
    }

    private final static String ALIAS1 = "entry1";
    private final static String ALIAS2 = "entry2";
    private final static String ALIAS3 = "entry3";

    private static void test(Provider p, PrivateKeyEntry entry) throws Exception {
        PrivateKey key = entry.getPrivateKey();
        X509Certificate[] chain = (X509Certificate[])entry.getCertificateChain();
        PublicKey publicKey = chain[0].getPublicKey();
        System.out.println(toString(key));
        sign(p, key, publicKey);

        KeyStore ks = KeyStore.getInstance("PKCS11", p);
        ks.load(null, null);
        if (ks.size() != 0) {
            throw new Exception("KeyStore not empty");
        }
        List<String> aliases;

        // test 1: add entry
        ks.setKeyEntry(ALIAS1, key, null, chain);
        aliases = aliases(ks);
        if (aliases.size() != 1) {
            throw new Exception("size not 1: " + aliases);
        }
        if (aliases.get(0).equals(ALIAS1) == false) {
            throw new Exception("alias mismatch: " + aliases);
        }

        PrivateKey key2 = (PrivateKey)ks.getKey(ALIAS1, null);
        System.out.println(toString(key2));
        X509Certificate[] chain2 = (X509Certificate[])ks.getCertificateChain(ALIAS1);
        // NSS makes token keys always sensitive, skip this check
//      if (key.equals(key2) == false) {
//          throw new Exception("key mismatch");
//      }
        if (Arrays.equals(chain, chain2) == false) {
            throw new Exception("chain mismatch");
        }
        sign(p, key2, publicKey);

        ks.deleteEntry(ALIAS1);
        if (ks.size() != 0) {
            throw new Exception("KeyStore not empty");
        }

        // test 2: translate to session object, then add entry
        KeyFactory kf = KeyFactory.getInstance(key.getAlgorithm(), p);
        PrivateKey key3 = (PrivateKey)kf.translateKey(key);
        System.out.println(toString(key3));
        sign(p, key3, publicKey);

        ks.setKeyEntry(ALIAS2, key3, null, chain);
        aliases = aliases(ks);
        if (aliases.size() != 1) {
            throw new Exception("size not 1");
        }
        if (aliases.get(0).equals(ALIAS2) == false) {
            throw new Exception("alias mismatch: " + aliases);
        }

        PrivateKey key4 = (PrivateKey)ks.getKey(ALIAS2, null);
        System.out.println(toString(key4));
        X509Certificate[] chain4 = (X509Certificate[])ks.getCertificateChain(ALIAS2);
        if (Arrays.equals(chain, chain4) == false) {
            throw new Exception("chain mismatch");
        }
        sign(p, key4, publicKey);

        // test 3: change alias
        ks.setKeyEntry(ALIAS3, key3, null, chain);
        aliases = aliases(ks);
        if (aliases.size() != 1) {
            throw new Exception("size not 1");
        }
        if (aliases.get(0).equals(ALIAS3) == false) {
            throw new Exception("alias mismatch: " + aliases);
        }

        PrivateKey key5 = (PrivateKey)ks.getKey(ALIAS3, null);
        System.out.println(toString(key5));
        X509Certificate[] chain5 = (X509Certificate[])ks.getCertificateChain(ALIAS3);
        if (Arrays.equals(chain, chain5) == false) {
            throw new Exception("chain mismatch");
        }
        sign(p, key5, publicKey);

        ks.deleteEntry(ALIAS3);
        if (ks.size() != 0) {
            throw new Exception("KeyStore not empty");
        }

        System.out.println("OK");
    }

    private final static byte[] DATA = new byte[4096];

    static {
        Random random = new Random();
        random.nextBytes(DATA);
    }

    private static void sign(Provider p, PrivateKey privateKey, PublicKey publicKey) throws Exception {
        String keyAlg = privateKey.getAlgorithm();
        String alg;
        if (keyAlg.equals("RSA")) {
            alg = "SHA1withRSA";
        } else if (keyAlg.equals("DSA")) {
            alg = "SHA1withDSA";
        } else if (keyAlg.equals("EC")) {
            alg = "SHA1withECDSA";
        } else {
            throw new Exception("Unknown algorithm " + keyAlg);
        }
        Signature s = Signature.getInstance(alg, p);
        s.initSign(privateKey);
        s.update(DATA);
        byte[] sig = s.sign();

        s.initVerify(publicKey);
        s.update(DATA);
        if (s.verify(sig) == false) {
            throw new Exception("Signature did not verify");
        }
    }

    private final static int MAX_LINE = 85;

    private static String toString(Object o) {
        String s = String.valueOf(o).split("\n")[0];
        return (s.length() <= MAX_LINE) ? s : s.substring(0, MAX_LINE);
    }

}

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