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Java example source code file (XMLEncKAT.java)

This example Java source code file (XMLEncKAT.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, ascii, base64decoder, base64encoder, crypto, desede, exception, gpl6bnel1jkl0\/lgnf9gejlyhri6xxfz, ilfus40lvstvu0mj8eprrghvhab48y, ioexception, ivparameterspec, secretkey, secretkeyspec, security, string, zhz4v3rlwtlceopirhflkvyjobdtejooqdat\/4xr1ba

The XMLEncKAT.java Java example source code

/*
 * Copyright (c) 2004, 2007, 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 5008159 5008156
 * @run main XMLEncKAT
 * @summary Verify that the two key wrap ciphers, i.e. "DESedeWrap"
 * and "AESWrap", work as expected.
 * @author Valerie Peng
 */
import java.security.Key;
import java.security.AlgorithmParameters;
import javax.crypto.*;
import javax.crypto.spec.*;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
import java.io.UnsupportedEncodingException;
import java.io.IOException;

public class XMLEncKAT {

    private static byte[] desEdeKey_1;
    private static byte[] aes128Key_1;
    private static byte[] aes192Key_1;
    private static byte[] aes256Key_1;
    private static byte[] desEdeKey_2;
    private static byte[] aes128Key_2;
    private static byte[] aes192Key_2;
    private static byte[] aes256Key_2;

    private static BASE64Decoder base64D = new BASE64Decoder();
    private static BASE64Encoder base64E = new BASE64Encoder();

    static {
        try {
            desEdeKey_1 = "abcdefghijklmnopqrstuvwx".getBytes("ASCII");
            aes128Key_1 = "abcdefghijklmnop".getBytes("ASCII");
            aes192Key_1 = "abcdefghijklmnopqrstuvwx".getBytes("ASCII");
            aes256Key_1 = "abcdefghijklmnopqrstuvwxyz012345".getBytes("ASCII");
        } catch (UnsupportedEncodingException uee) {
            // should never happen
        }
        try {
            desEdeKey_2 = base64D.decodeBuffer
                ("yI+J1f3puYAERjIcT6vfg6RitmKX8nD0");
            aes128Key_2 = base64D.decodeBuffer
                ("01+yuQ2huPS1+Qv0LH+zaQ==");
            aes192Key_2 = base64D.decodeBuffer
                ("IlfuS40LvStVU0Mj8ePrrGHVhAb48y++");
            aes256Key_2 = base64D.decodeBuffer
                ("ZhZ4v3RlwTlCEOpIrHfLKVyJOBDtEJOOQDat/4xR1bA=");
        } catch (IOException ioe) {
            // should never happen
        }
    }
    private static String[] desEdeWrappedKey_1 = {
        "ZyJbVsjRM4MEsswwwHz57aUz1eMqZHuEIoEPGS47CcmLvhuCtlzWZ9S/WcVJZIpz",
        "gHMpx5iF7+KXtNHLasZrkcLHn8Ti4rxUjCIRK+IcgbQir6FUsQ/uxQ3o8enEMWq1"
    };
    private static String[] desEdeWrappedKey_2 = {
        "/PZvvn42E9dmMUZ8KCY6B5XtLaaIaG4X5YNDwgV5Vlo=",
        "HgVuHoXxBQWD9fvi0gt9TanywZ5lJokM/12fcMG6gRoMjsCPulH+4A=="
    };
    private static String[] aes128WrappedKey_1 = {
        "dV45TUpJbidb9iKa34xj1WVtTZ036cnqvym2TBJWR5c=",
        "rPnY/XoSGCbuwy7vpslf29rs9dbvSCmGFOjEs3LT6g/qyZjfDA+2fQ=="
    };
    private static String[] aes128WrappedKey_2 = {
        "GPl6bneL1jKl0/lGnf9gejlYHRI6XxFz"
    };
    private static String[] aes192WrappedKey_1 = {
        "IbjZH7Mq564oMybpvCHWYM/5ER3eFsAV",
        "19D633XVohP6UJvaVRAhJek+ahtM3gOiVs6nZyAasDEb+WCUQOcWZw=="
    };
    private static String[] aes192WrappedKey_2 = {
        "5+GpVUQNTAT3uY8pPedEg/PpftiX+fJsTCun+fgmIz0=",
        "iuZvvGBWScikHld9TtNIOz0Sm7Srg5AcxOBMA8qIvQY=",
        "PeDwjnCsg6xWzs3SmzUtc2nyUz28nGu7"
    };
    private static String[] aes256WrappedKey_1 = {
        "4AAgyi3M7xNdBimbQZKdGJLn3/cS4Yv8QKuA01+gUnY=",
        "tPCC89jQShB+WDINCdRfKgf8wTlAx8xRXD73RmEHPBfix8zS1N82KQ==",
        "bsL63D0hPN6EOyzdgfEmKsAAvoJiGM+Wp9a9KZM92IKdl7s3YSntRg=="
    };
    private static String[] aes256WrappedKey_2 = {
        "IbnoS1cvuIFIGB46jj1V1FGftc92irrCwcC7BoBvxwQ=",
        "ic+Om6/3ZKcThVN3iv9lUEankNkDv3Et",
        "jOvQe4SxDqEMvAHcmb3Z+/Uedj23pvL6BRQsl2sjJlQ=",
        "IMwdsyg89IZ4Txf1SYYZNKUOKuYdDoIi/zEKXCjj4j9PM6BdkZligA=="
    };

    public static void testKeyWrap(String cAlg, byte[] cKeyVal,
        String cKeyAlg, String[] base64Wrapped) throws Exception {
        System.out.println("Testing " + cAlg + " Cipher with " +
            8*cKeyVal.length + "-bit key");
        Cipher c = Cipher.getInstance(cAlg, "SunJCE");
        SecretKey cKey = new SecretKeySpec(cKeyVal, cKeyAlg);
        c.init(Cipher.UNWRAP_MODE, cKey);
        Key[] key = new SecretKey[base64Wrapped.length];
        IvParameterSpec[] params =
            new IvParameterSpec[base64Wrapped.length];
        // first test UNWRAP with known values
        for (int i = 0; i < base64Wrapped.length; i++) {
            byte[] wrappedKey = base64D.decodeBuffer(base64Wrapped[i]);
            key[i] = c.unwrap(wrappedKey, "AES", Cipher.SECRET_KEY);
            if (c.getIV() != null) {
                params[i] = new IvParameterSpec(c.getIV());
            }
        }
        // then test WRAP and compare with the known values
        for (int i = 0; i < key.length; i++) {
            c.init(Cipher.WRAP_MODE, cKey, params[i]);
            byte[] wrapped2 = c.wrap(key[i]);
            String out = base64E.encode(wrapped2);
            if (!out.equalsIgnoreCase(base64Wrapped[i])) {
                throw new Exception("Wrap failed; got " + out + ", expect " +
                                   base64Wrapped[i]);
            }
        }
    }

    public static void main(String[] argv) throws Exception {
        String wrapAlg = "DESedeWrap";
        String keyAlg = "DESede";
        testKeyWrap(wrapAlg, desEdeKey_1, keyAlg, desEdeWrappedKey_1);
        testKeyWrap(wrapAlg, desEdeKey_2, keyAlg, desEdeWrappedKey_2);

        wrapAlg = "AESWrap";
        keyAlg = "AES";
        testKeyWrap(wrapAlg, aes128Key_1, keyAlg, aes128WrappedKey_1);
        testKeyWrap(wrapAlg, aes128Key_2, keyAlg, aes128WrappedKey_2);
        // only run the tests on longer key lengths if unlimited version
        // of JCE jurisdiction policy files are installed
        if (Cipher.getMaxAllowedKeyLength(keyAlg) == Integer.MAX_VALUE) {
            testKeyWrap(wrapAlg, aes192Key_1, keyAlg, aes192WrappedKey_1);
            testKeyWrap(wrapAlg, aes192Key_2, keyAlg, aes192WrappedKey_2);
            testKeyWrap(wrapAlg, aes256Key_1, keyAlg, aes256WrappedKey_1);
            testKeyWrap(wrapAlg, aes256Key_2, keyAlg, aes256WrappedKey_2);
        }
        System.out.println("All Tests Passed");
    }
}

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