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Java example source code file (Serial.java)

This example Java source code file (Serial.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.

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Java - Java tags/keywords

biginteger, bytearrayoutputstream, crypto, jce, keypair, math, objectinputstream, objectoutputstream, pbekeyspec, pbeparameterspec, rc5, rsa, secretkey, security, securityexception, string, sun

The Serial.java Java example source code

/*
 * Copyright (c) 2003, 2004, 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 4532506 4999599
 * @summary Serializing KeyPair on one VM (Sun),
 *      and Deserializing on another (IBM) fails
 * @run main/othervm/policy=Serial.policy Serial
 */

import java.io.*;
import java.math.BigInteger;
import java.security.*;
import javax.crypto.*;
import javax.crypto.spec.*;

public class Serial {

    // providers
    private static final String SUN = "SUN";
    private static final String RSA = "SunRsaSign";
    private static final String JCE = "SunJCE";

    public static void main(String[] args) throws Exception {

        // generate DSA key pair
        KeyPairGenerator kpg = KeyPairGenerator.getInstance("DSA", SUN);
        kpg.initialize(512);
        KeyPair dsaKp = kpg.genKeyPair();

        // serialize DSA key pair
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(baos);
        oos.writeObject(dsaKp);
        oos.close();

        // deserialize DSA key pair
        ObjectInputStream ois = new ObjectInputStream
                        (new ByteArrayInputStream(baos.toByteArray()));
        KeyPair dsaKp2 = (KeyPair)ois.readObject();
        ois.close();

        if (!dsaKp2.getPublic().equals(dsaKp.getPublic()) ||
            !dsaKp2.getPrivate().equals(dsaKp.getPrivate())) {
            throw new SecurityException("DSA test failed");
        }

        // generate RSA key pair
        kpg = KeyPairGenerator.getInstance("RSA", RSA);
        kpg.initialize(512);
        KeyPair rsaKp = kpg.genKeyPair();

        // serialize RSA key pair
        baos.reset();
        oos = new ObjectOutputStream(baos);
        oos.writeObject(rsaKp);
        oos.close();

        // deserialize RSA key pair
        ois = new ObjectInputStream
                        (new ByteArrayInputStream(baos.toByteArray()));
        KeyPair rsaKp2 = (KeyPair)ois.readObject();
        ois.close();

        if (!rsaKp2.getPublic().equals(rsaKp.getPublic()) ||
            !rsaKp2.getPrivate().equals(rsaKp.getPrivate())) {
            throw new SecurityException("RSA test failed");
        }

        // exclude test is ECF provider is installed, see 4923290
        if (Security.getProvider("SunPKCS11-Solaris") == null) {
            // generate DH key pair
            kpg = KeyPairGenerator.getInstance("DiffieHellman", JCE);
            kpg.initialize(new DHParameterSpec(skip1024Modulus, skip1024Base));
            KeyPair dhKp = kpg.genKeyPair();

            // serialize DH key pair
            baos.reset();
            oos = new ObjectOutputStream(baos);
            oos.writeObject(dhKp);
            oos.close();

            // deserialize DH key pair
            ois = new ObjectInputStream
                            (new ByteArrayInputStream(baos.toByteArray()));
            KeyPair dhKp2 = (KeyPair)ois.readObject();
            ois.close();

            if (!dhKp2.getPublic().equals(dhKp.getPublic()) ||
                !dhKp2.getPrivate().equals(dhKp.getPrivate())) {
                throw new SecurityException("DH test failed");
            }
        }

        // generate RC5 key
        SecretKeySpec rc5Key = new SecretKeySpec(new byte[128], "RC5");

        // serialize RC5 key
        baos.reset();
        oos = new ObjectOutputStream(baos);
        oos.writeObject(rc5Key);
        oos.close();

        // deserialize RC5 key
        ois = new ObjectInputStream
                        (new ByteArrayInputStream(baos.toByteArray()));
        SecretKey rc5Key2 = (SecretKey)ois.readObject();
        ois.close();

        if (!rc5Key.equals(rc5Key2)) {
            throw new SecurityException("RC5 test failed");
        }

        // generate PBE key

        // Salt
        byte[] salt = {
                (byte)0xc7, (byte)0x73, (byte)0x21, (byte)0x8c,
                (byte)0x7e, (byte)0xc8, (byte)0xee, (byte)0x99
        };

        // Iteration count
        int count = 20;

        // Create PBE parameter set
        PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, count);

        char[] password = new char[] {'f', 'o', 'o'};
        PBEKeySpec pbeKeySpec = new PBEKeySpec(password);
        SecretKeyFactory keyFac =
                        SecretKeyFactory.getInstance("PBEWithMD5AndDES", JCE);
        SecretKey pbeKey = keyFac.generateSecret(pbeKeySpec);

        // serialize PBE key
        baos.reset();
        oos = new ObjectOutputStream(baos);
        oos.writeObject(pbeKey);
        oos.close();

        // deserialize PBE key
        ois = new ObjectInputStream
                        (new ByteArrayInputStream(baos.toByteArray()));
        SecretKey pbeKey2 = (SecretKey)ois.readObject();
        ois.close();

        if (!pbeKey.equals(pbeKey2)) {
            throw new SecurityException("PBE test failed");
        }

        checkKey("AES", 128);
        checkKey("Blowfish", -1);
        checkKey("DES", 56);
        checkKey("DESede", 168);
        checkKey("HmacMD5", -1);
        checkKey("HmacSHA1", -1);
    }

    private static void checkKey(String algorithm, int size) throws Exception {
        // generate key
        KeyGenerator kg = KeyGenerator.getInstance(algorithm, JCE);
        if (size > 0) {
            kg.init(size);
        }
        SecretKey key = kg.generateKey();

        // serialize key
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(baos);
        oos.writeObject(key);
        oos.close();

        // deserialize key
        ObjectInputStream ois = new ObjectInputStream
                                (new ByteArrayInputStream(baos.toByteArray()));
        SecretKey key2 = (SecretKey)ois.readObject();
        ois.close();

        if (!key.equals(key2)) {
            throw new SecurityException(algorithm + " test failed");
        }
    }

    // The 1024 bit Diffie-Hellman modulus values used by SKIP
    private static final byte skip1024ModulusBytes[] = {
        (byte)0xF4, (byte)0x88, (byte)0xFD, (byte)0x58,
        (byte)0x4E, (byte)0x49, (byte)0xDB, (byte)0xCD,
        (byte)0x20, (byte)0xB4, (byte)0x9D, (byte)0xE4,
        (byte)0x91, (byte)0x07, (byte)0x36, (byte)0x6B,
        (byte)0x33, (byte)0x6C, (byte)0x38, (byte)0x0D,
        (byte)0x45, (byte)0x1D, (byte)0x0F, (byte)0x7C,
        (byte)0x88, (byte)0xB3, (byte)0x1C, (byte)0x7C,
        (byte)0x5B, (byte)0x2D, (byte)0x8E, (byte)0xF6,
        (byte)0xF3, (byte)0xC9, (byte)0x23, (byte)0xC0,
        (byte)0x43, (byte)0xF0, (byte)0xA5, (byte)0x5B,
        (byte)0x18, (byte)0x8D, (byte)0x8E, (byte)0xBB,
        (byte)0x55, (byte)0x8C, (byte)0xB8, (byte)0x5D,
        (byte)0x38, (byte)0xD3, (byte)0x34, (byte)0xFD,
        (byte)0x7C, (byte)0x17, (byte)0x57, (byte)0x43,
        (byte)0xA3, (byte)0x1D, (byte)0x18, (byte)0x6C,
        (byte)0xDE, (byte)0x33, (byte)0x21, (byte)0x2C,
        (byte)0xB5, (byte)0x2A, (byte)0xFF, (byte)0x3C,
        (byte)0xE1, (byte)0xB1, (byte)0x29, (byte)0x40,
        (byte)0x18, (byte)0x11, (byte)0x8D, (byte)0x7C,
        (byte)0x84, (byte)0xA7, (byte)0x0A, (byte)0x72,
        (byte)0xD6, (byte)0x86, (byte)0xC4, (byte)0x03,
        (byte)0x19, (byte)0xC8, (byte)0x07, (byte)0x29,
        (byte)0x7A, (byte)0xCA, (byte)0x95, (byte)0x0C,
        (byte)0xD9, (byte)0x96, (byte)0x9F, (byte)0xAB,
        (byte)0xD0, (byte)0x0A, (byte)0x50, (byte)0x9B,
        (byte)0x02, (byte)0x46, (byte)0xD3, (byte)0x08,
        (byte)0x3D, (byte)0x66, (byte)0xA4, (byte)0x5D,
        (byte)0x41, (byte)0x9F, (byte)0x9C, (byte)0x7C,
        (byte)0xBD, (byte)0x89, (byte)0x4B, (byte)0x22,
        (byte)0x19, (byte)0x26, (byte)0xBA, (byte)0xAB,
        (byte)0xA2, (byte)0x5E, (byte)0xC3, (byte)0x55,
        (byte)0xE9, (byte)0x2F, (byte)0x78, (byte)0xC7
    };

    // The SKIP 1024 bit modulus
    private static final BigInteger skip1024Modulus
    = new BigInteger(1, skip1024ModulusBytes);

    // The base used with the SKIP 1024 bit modulus
    private static final BigInteger skip1024Base = BigInteger.valueOf(2);
}

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