Java example source code file (TestSymmCiphersNoPad.java)

This example Java source code file (TestSymmCiphersNoPad.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

aes, arcfour, bytearrayoutputstream, bytebuffer, cipher, crypto, exception, nio, secretkey, security, string, stringbuffer, test, test_list, testsymmciphersnopad, util

The TestSymmCiphersNoPad.java Java example source code

/*
 * Copyright (c) 2007, 2013, 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 4898484 6604496 8001284
 * @summary basic test for symmetric ciphers with no padding
 * @author Valerie Peng
 * @library ..
 */

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

import java.security.*;
import java.security.spec.AlgorithmParameterSpec;

import javax.crypto.*;
import javax.crypto.spec.IvParameterSpec;

public class TestSymmCiphersNoPad extends PKCS11Test {

    private static class CI { // class for holding Cipher Information
        String transformation;
        String keyAlgo;
        int dataSize;

        CI(String transformation, String keyAlgo, int dataSize) {
            this.transformation = transformation;
            this.keyAlgo = keyAlgo;
            this.dataSize = dataSize;
        }
    }

    private static final CI TEST_LIST[] = {
        new CI("ARCFOUR", "ARCFOUR", 400),
        new CI("RC4", "RC4", 401),
        new CI("DES/CBC/NoPadding", "DES", 400),
        new CI("DESede/CBC/NoPadding", "DESede", 160),
        new CI("AES/CBC/NoPadding", "AES", 4800),
        new CI("Blowfish/CBC/NoPadding", "Blowfish", 24),
        new CI("AES/CTR/NoPadding", "AES", 1600),
        new CI("AES/CTR/NoPadding", "AES", 65)
    };

    private static StringBuffer debugBuf;

    public void main(Provider p) throws Exception {
        boolean status = true;
        Random random = new Random();
        try {
            for (int i = 0; i < TEST_LIST.length; i++) {
                CI currTest = TEST_LIST[i];
                System.out.println("===" + currTest.transformation + "===");
                try {
                    KeyGenerator kg =
                        KeyGenerator.getInstance(currTest.keyAlgo, p);
                    SecretKey key = kg.generateKey();
                    Cipher c1 = Cipher.getInstance(currTest.transformation, p);
                    Cipher c2 = Cipher.getInstance(currTest.transformation,
                                                   "SunJCE");

                    byte[] plainTxt = new byte[currTest.dataSize];
                    random.nextBytes(plainTxt);
                    System.out.println("Testing inLen = " + plainTxt.length);

                    c2.init(Cipher.ENCRYPT_MODE, key);
                    AlgorithmParameters params = c2.getParameters();
                    byte[] answer = c2.doFinal(plainTxt);
                    test(c1, Cipher.ENCRYPT_MODE, key, params,
                         plainTxt, answer);
                    System.out.println("Encryption tests: DONE");
                    c2.init(Cipher.DECRYPT_MODE, key, params);
                    byte[] answer2 = c2.doFinal(answer);
                    test(c1, Cipher.DECRYPT_MODE, key, params,
                         answer, answer2);
                    System.out.println("Decryption tests: DONE");
                } catch (NoSuchAlgorithmException nsae) {
                    System.out.println("Skipping unsupported algorithm: " +
                                       nsae);
                }
            }
        } catch (Exception ex) {
            // print out debug info when exception is encountered
            if (debugBuf != null) {
                System.out.println(debugBuf.toString());
            }
            throw ex;
        }
    }

    private static void test(Cipher cipher, int mode, SecretKey key,
                             AlgorithmParameters params,
                             byte[] in, byte[] answer) throws Exception {
        // test setup
        debugBuf = new StringBuffer();
        cipher.init(mode, key, params);
        int outLen = cipher.getOutputSize(in.length);
        debugBuf.append("Estimated output size = " + outLen + "\n");

        // test data preparation
        ByteBuffer inBuf = ByteBuffer.allocate(in.length);
        inBuf.put(in);
        inBuf.position(0);
        ByteBuffer inDirectBuf = ByteBuffer.allocateDirect(in.length);
        inDirectBuf.put(in);
        inDirectBuf.position(0);
        ByteBuffer outBuf = ByteBuffer.allocate(outLen);
        ByteBuffer outDirectBuf = ByteBuffer.allocateDirect(outLen);

        // test#1: byte[] in + byte[] out
        debugBuf.append("Test#1:\n");
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        byte[] testOut1 = cipher.update(in, 0, 16);
        if (testOut1 != null) baos.write(testOut1, 0, testOut1.length);
        testOut1 = cipher.doFinal(in, 16, in.length-16);
        if (testOut1 != null) baos.write(testOut1, 0, testOut1.length);
        testOut1 = baos.toByteArray();
        match(testOut1, answer);

        // test#2: Non-direct Buffer in + non-direct Buffer out
        debugBuf.append("Test#2:\n");
        debugBuf.append("inputBuf: " + inBuf + "\n");
        debugBuf.append("outputBuf: " + outBuf + "\n");
        cipher.update(inBuf, outBuf);
        cipher.doFinal(inBuf, outBuf);
        match(outBuf, answer);

        // test#3: Direct Buffer in + direc Buffer out
        debugBuf.append("Test#3:\n");
        debugBuf.append("(pre) inputBuf: " + inDirectBuf + "\n");
        debugBuf.append("(pre) outputBuf: " + outDirectBuf + "\n");
        cipher.update(inDirectBuf, outDirectBuf);
        cipher.doFinal(inDirectBuf, outDirectBuf);

        debugBuf.append("(post) inputBuf: " + inDirectBuf + "\n");
        debugBuf.append("(post) outputBuf: " + outDirectBuf + "\n");
        match(outDirectBuf, answer);

        // test#4: Direct Buffer in + non-direct Buffer out
        debugBuf.append("Test#4:\n");
        inDirectBuf.position(0);
        outBuf.position(0);
        debugBuf.append("inputBuf: " + inDirectBuf + "\n");
        debugBuf.append("outputBuf: " + outBuf + "\n");
        cipher.update(inDirectBuf, outBuf);
        cipher.doFinal(inDirectBuf, outBuf);
        match(outBuf, answer);

        // test#5: Non-direct Buffer in + direct Buffer out
        debugBuf.append("Test#5:\n");
        inBuf.position(0);
        outDirectBuf.position(0);

        debugBuf.append("(pre) inputBuf: " + inBuf + "\n");
        debugBuf.append("(pre) outputBuf: " + outDirectBuf + "\n");

        cipher.update(inBuf, outDirectBuf);
        cipher.doFinal(inBuf, outDirectBuf);

        debugBuf.append("(post) inputBuf: " + inBuf + "\n");
        debugBuf.append("(post) outputBuf: " + outDirectBuf + "\n");
        match(outDirectBuf, answer);

        // test#6: Streams
        debugBuf.append("Test#6: Streaming\n");
        outBuf.position(0);
        InputStream stream =
            new CipherInputStream(new ByteArrayInputStream(in), cipher);
        byte[] data = new byte[1024];
        int bytesRead = 0;
        try {
            while (bytesRead >= 0) {
                bytesRead = stream.read(data);
                if (bytesRead == -1)
                    break;
                debugBuf.append("bytesRead: " + bytesRead);
                debugBuf.append("\toutBuf.position(): " + outBuf.position() +
                    "\n");
                outBuf.put(data, 0 , bytesRead);
            }
        } catch (Exception ex) {
            debugBuf.append("Caught Exception during stream reading\n");
            throw ex;
        }
        match(outBuf, answer);

        debugBuf = null;
    }

    private static void match(byte[] b1, byte[] b2) throws Exception {
        if (b1.length != b2.length) {
            debugBuf.append("got len   : " + b1.length + "\n");
            debugBuf.append("expect len: " + b2.length + "\n");
            throw new Exception("mismatch - different length!\n");
        } else {
            for (int i = 0; i < b1.length; i++) {
                if (b1[i] != b2[i]) {
                    debugBuf.append("got   : " + toString(b1) + "\n");
                    debugBuf.append("expect: " + toString(b2) + "\n");
                    throw new Exception("mismatch");
                }
            }
        }
    }

    private static void match(ByteBuffer bb, byte[] answer) throws Exception {
        byte[] bbTemp = new byte[bb.position()];
        bb.position(0);
        bb.get(bbTemp, 0, bbTemp.length);
        match(bbTemp, answer);
    }

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