DES加密与WPF转圈动画实现

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Security.Cryptography;
using System.IO;

namespace Framework.Utils.Datahelper
{
   public  class Des
    {
       /// <summary>
       /// <![CDATA[用户名加密的函数]]>
       /// </summary>
       /// <param name="EncryptString1"></param>
       /// <param name="EncryptKey"></param>
        /// <returns><![CDATA[用户名加密后的字符串]]></returns>
       public static string DesUser(string EncryptString1, string EncryptKey)
       {
           DESCryptoServiceProvider des = new DESCryptoServiceProvider();
           byte[] inputByteArray = Encoding.Default.GetBytes(EncryptString1);
           des.Key = ASCIIEncoding.ASCII.GetBytes(EncryptKey);
           des.IV = ASCIIEncoding.ASCII.GetBytes(EncryptKey);
           MemoryStream ms = new MemoryStream();       
           CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);       
           cs.Write(inputByteArray, 0, inputByteArray.Length);
           cs.FlushFinalBlock();     
           StringBuilder ret1 = new StringBuilder();       
           foreach (byte b in ms.ToArray())
           {

               ret1.AppendFormat("{0:X2}", b);
           }
           ret1.ToString();      
           return ret1.ToString();//返回加密结果
       }
       /// <summary>
       /// <![CDATA[密码加密的函数]]>
       /// </summary>
       /// <param name="EncryptString1"></param>
       /// <param name="EncryptKey"></param>
       /// <returns><![CDATA[密码加密后字符串]]></returns>
       public static string DesPass(string EncryptString1, string EncryptKey)
       {
           DESCryptoServiceProvider des = new DESCryptoServiceProvider();
           byte[] inputByteArray = Encoding.Default.GetBytes(EncryptString1);
           des.Key = ASCIIEncoding.ASCII.GetBytes(EncryptKey);
           des.IV = ASCIIEncoding.ASCII.GetBytes(EncryptKey);
           MemoryStream ms = new MemoryStream();
           CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
           cs.Write(inputByteArray, 0, inputByteArray.Length);
           cs.FlushFinalBlock();
           StringBuilder ret1 = new StringBuilder();
           foreach (byte b in ms.ToArray())
           {
               ret1.AppendFormat("{0:X2}", b);
           }
           ret1.ToString();         
           return ret1.ToString();
       }