BusinessFacade/Code.cs

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using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Security.Cryptography;
using System.IO;
using System.Text;

#region -> Copyright (C) 2009-20XX 天津纵贯科技有限公司 版权所有

/*
 * -----------------------------------------------------------------------------
 * 功能描述：字符加密和解密
 * 
 * 创建标识：崔涛 2010-07-08
 * 
 * 来源： 参考公司以前加密解密程序
 * -----------------------------------------------------------------------------
 */

#endregion


/// <summary>
/// Code 的摘要说明
/// </summary>
public class Code
{
	public Code()
	{
		//
		// TODO: 在此处添加构造函数逻辑
		//
	}
   
    #region -> 加解密

    /// <summary>
    /// 加密方法
    /// cuit
    /// 2010-07-08
    /// </summary>
    /// <param name="data">要加密的字符串</param>
    /// <returns>加密后的字符串</returns>
    public static string Encode(string data)
    {
        string KEY_64 = "VavicApp";
        string IV_64 = "VavicApp";

        byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(KEY_64);
        byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(IV_64);

        DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
        int i = cryptoProvider.KeySize;
        MemoryStream ms = new MemoryStream();