com.tydic.dbp.utils.ThreeDesUtils.java Source code

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Here is the source code for com.tydic.dbp.utils.ThreeDesUtils.java

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/*
 * Copyrights  2009Tianyuan DIC Computer Co., Ltd. ?  All rights reserved. 
 * See license distributed with this available online at 
 *
 *      http://www.tydic.com/en/html/product/default.aspx
 *
 * Address: 3/F,T3 Building, South 7th Road, South Area, Hi-tech Industrial park, Shenzhen, P.R.C.
 * Email: webmaster@tydic.com
 * Tel: +86 755 26745688 
 */
package com.tydic.dbp.utils;

import javax.crypto.*;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Hex;

/**
 *  @author 
 *     cameron[]
 *  @module  
 *     ??? 
 *  @description  
 *     ?? ThreeDes?
 *  @email 
 *     caozj@tydic.com,cameron6@163.com
 *  @date  
 *     Created On : Nov 9, 2009 6:42:36 PM
 *  @version 
 *     1.0
 **/
public class ThreeDesUtils {
    private static final String Algorithm = "DESede"; //  ,?
    // DES,DESede,Blowfish
    private static final byte[] keyBytes = { 0x11, 0x22, 0x4F, 0x58, (byte) 0x88, 0x10, 0x40, 0x38, 0x28, 0x25,
            0x79, 0x51, (byte) 0xCB, (byte) 0xDD, 0x55, 0x66, 0x77, 0x29, 0x74, (byte) 0x98, 0x30, 0x40, 0x36,
            (byte) 0xE2 }; // 24

    // keybyte24
    // src??
    public static String encryptMode(String Src) {
        try {
            // ?
            SecretKey deskey = new SecretKeySpec(keyBytes, Algorithm);
            // 
            Cipher c1 = Cipher.getInstance(Algorithm);
            c1.init(Cipher.ENCRYPT_MODE, deskey);
            return Hex.encodeHexString(c1.doFinal(Src.getBytes()));
        } catch (java.security.NoSuchAlgorithmException e1) {
            e1.printStackTrace();
        } catch (javax.crypto.NoSuchPaddingException e2) {
            e2.printStackTrace();
        } catch (java.lang.Exception e3) {
            e3.printStackTrace();
        }
        return null;
    }

    // keybyte24
    // src?
    public static String decryptMode(String srcStr) {
        try {
            // ?
            SecretKey deskey = new SecretKeySpec(keyBytes, Algorithm);
            // 
            Cipher c1 = Cipher.getInstance(Algorithm);
            c1.init(Cipher.DECRYPT_MODE, deskey);
            return new String(c1.doFinal(Hex.decodeHex(srcStr.toCharArray())));
        } catch (java.security.NoSuchAlgorithmException e1) {
            e1.printStackTrace();
        } catch (javax.crypto.NoSuchPaddingException e2) {
            e2.printStackTrace();
        } catch (java.lang.Exception e3) {
            e3.printStackTrace();
        }
        return null;
    }
}