treedes.java

网上商城代码

package com.fendou.util;


import java.security.*;
import javax.crypto.*;
import javax.crypto.spec.SecretKeySpec;
import com.sun.org.apache.xerces.internal.impl.dv.util.Base64;


public class TreeDes {

    private static final String Algorithm = "DESede";
    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};


    public static String encryptMode( String srcdata) {
       try {
            Security.addProvider(new com.sun.crypto.provider.SunJCE());
            SecretKey deskey = new SecretKeySpec(keyBytes, Algorithm);
            byte[] src=srcdata.getBytes("UTF-8");

            Cipher c1 = Cipher.getInstance(Algorithm);
            c1.init(Cipher.ENCRYPT_MODE, deskey);
            byte[] e = c1.doFinal(src);
            String encryptdata=new String(Base64.encode(e));
            return encryptdata;
        } catch (java.security.NoSuchAlgorithmException e1) {
            e1.printStackTrace();
        } catch (javax.crypto.NoSuchPaddingException e2) {
            e2.printStackTrace();
        } catch (java.lang.Exception e3) {
            e3.printStackTrace();
        }
        return null;
    }

    public static String decryptMode( String srcdata) {
        try {
            Security.addProvider(new com.sun.crypto.provider.SunJCE());
            SecretKey deskey = new SecretKeySpec(keyBytes, Algorithm);
            byte[] src= Base64.decode(srcdata);
            Cipher c1 = Cipher.getInstance(Algorithm);
            c1.init(Cipher.DECRYPT_MODE, deskey);
            byte[] srcBytes=c1.doFinal(src);
            String decryptdata=new String(srcBytes,"UTF-8");
            return decryptdata;
        } catch (java.security.NoSuchAlgorithmException e1) {
            e1.printStackTrace();
        } catch (javax.crypto.NoSuchPaddingException e2) {
            e2.printStackTrace();
        } catch (java.lang.Exception e3) {
            e3.printStackTrace();
        }
        return null;
    }

    public static String byte2hex(byte[] b) {
        String hs="";
        String stmp="";

        for (int n=0;n<b.length;n++) {
            stmp=(java.lang.Integer.toHexString(b[n] & 0XFF));
            if (stmp.length()==1) hs=hs+"0"+stmp;
            else hs=hs+stmp;
            if (n<b.length-1)  hs=hs+":";
        }
        return hs.toUpperCase();
    }

}