Java example source code file (TestKeyFactory.java)

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Java - Java tags/keywords

encodings, exception, format, inputstream, keyspec, keystore, pkcs, privatekey, publickey, rsa, rsaprivatekey, security, string, sunrsasign, 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 4853305
 * @summary Test KeyFactory of the new RSA provider
 * @author Andreas Sterbenz
 */

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

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

public class TestKeyFactory {

    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);

        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 {
        long start = System.currentTimeMillis();
        KeyStore ks = getKeyStore();
        KeyFactory kf = KeyFactory.getInstance("RSA", "SunRsaSign");
        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).");
    }
}