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Java example source code file (TestKeyFactory.java)

This example Java source code file (TestKeyFactory.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

algorithm, base, exception, format, jks, keyspec, keystore, pkcs, pkcs11test, privatekey, publickey, rsa, security, string, testkeyfactory, util

The TestKeyFactory.java Java example source code

/*
 * Copyright (c) 2003, 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 4856966
 * @summary Test KeyFactory of the new RSA provider
 * @author Andreas Sterbenz
 * @library ..
 */

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

import java.security.*;
import java.security.interfaces.*;
import java.security.spec.*;

public class TestKeyFactory extends PKCS11Test {

    private final static String BASE = System.getProperty("test.src", ".");

    private static final char[] password = "test12".toCharArray();

    static KeyStore getKeyStore() throws Exception {
        InputStream in = new FileInputStream(new File(BASE, "rsakeys.ks"));
        KeyStore ks = KeyStore.getInstance("JKS");
        ks.load(in, password);
        in.close();
        return ks;
    }

    /**
     * Test that key1 (reference key) and key2 (key to be tested) are
     * equivalent
     */
    private static void testKey(Key key1, Key key2) throws Exception {
        if (key2.getAlgorithm().equals("RSA") == false) {
            throw new Exception("Algorithm not RSA");
        }
        if (key1 instanceof PublicKey) {
            if (key2.getFormat().equals("X.509") == false) {
                throw new Exception("Format not X.509");
            }
        } else if (key1 instanceof PrivateKey) {
            if (key2.getFormat().equals("PKCS#8") == false) {
                throw new Exception("Format not PKCS#8");
            }
        }
        if (key1.equals(key2) == false) {
            throw new Exception("Keys not equal");
        }
        if (Arrays.equals(key1.getEncoded(), key2.getEncoded()) == false) {
            throw new Exception("Encodings not equal");
        }
    }

    private static void testPublic(KeyFactory kf, PublicKey key) throws Exception {
        System.out.println("Testing public key...");
        PublicKey key2 = (PublicKey)kf.translateKey(key);
        KeySpec rsaSpec = kf.getKeySpec(key, RSAPublicKeySpec.class);
        PublicKey key3 = kf.generatePublic(rsaSpec);
        KeySpec x509Spec = kf.getKeySpec(key, X509EncodedKeySpec.class);
        PublicKey key4 = kf.generatePublic(x509Spec);
        KeySpec x509Spec2 = new X509EncodedKeySpec(key.getEncoded());
        PublicKey key5 = kf.generatePublic(x509Spec2);
        testKey(key, key);
        testKey(key, key2);
        testKey(key, key3);
        testKey(key, key4);
        testKey(key, key5);
    }

    private static void testPrivate(KeyFactory kf, PrivateKey key) throws Exception {
        System.out.println("Testing private key...");
        PrivateKey key2 = (PrivateKey)kf.translateKey(key);
        KeySpec rsaSpec = kf.getKeySpec(key, RSAPrivateCrtKeySpec.class);
        PrivateKey key3 = kf.generatePrivate(rsaSpec);
        KeySpec pkcs8Spec = kf.getKeySpec(key, PKCS8EncodedKeySpec.class);
        PrivateKey key4 = kf.generatePrivate(pkcs8Spec);
        KeySpec pkcs8Spec2 = new PKCS8EncodedKeySpec(key.getEncoded());
        PrivateKey key5 = kf.generatePrivate(pkcs8Spec2);
        testKey(key, key);
        testKey(key, key2);
        testKey(key, key3);
        testKey(key, key4);
        testKey(key, key5);

        // XXX PKCS#11 providers may not support non-CRT keys (e.g. NSS)
//      KeySpec rsaSpec2 = kf.getKeySpec(key, RSAPrivateKeySpec.class);
//      PrivateKey key6 = kf.generatePrivate(rsaSpec2);
//      RSAPrivateKey rsaKey = (RSAPrivateKey)key;
//      KeySpec rsaSpec3 = new RSAPrivateKeySpec(rsaKey.getModulus(), rsaKey.getPrivateExponent());
//      PrivateKey key7 = kf.generatePrivate(rsaSpec3);
//      testKey(key6, key6);
//      testKey(key6, key7);
    }

    private static void test(KeyFactory kf, Key key) throws Exception {
        if (key.getAlgorithm().equals("RSA") == false) {
            System.out.println("Not an RSA key, ignoring");
        }
        if (key instanceof PublicKey) {
            testPublic(kf, (PublicKey)key);
        } else if (key instanceof PrivateKey) {
            testPrivate(kf, (PrivateKey)key);
        }
    }

    public static void main(String[] args) throws Exception {
        main(new TestKeyFactory());
    }

    public void main(Provider p) throws Exception {
        long start = System.currentTimeMillis();
        KeyStore ks = getKeyStore();
        KeyFactory kf = KeyFactory.getInstance("RSA", p);
        for (Enumeration e = ks.aliases(); e.hasMoreElements(); ) {
            String alias = (String)e.nextElement();
            Key key = null;
            if (ks.isKeyEntry(alias)) {
                test(kf, ks.getKey(alias, password));
                test(kf, ks.getCertificate(alias).getPublicKey());
            }
        }
        long stop = System.currentTimeMillis();
        System.out.println("All tests passed (" + (stop - start) + " ms).");
    }
}

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