using System;using System.Text;using System.Security.Cryptography;namespace DotNet.Utilities{  /// <summary>  /// 得到隨機安全碼（哈希加密）。  /// </summary>  public class HashEncode  {    public HashEncode()    {      //      // TODO: 在此處添加構造函數邏輯      //    }    /// <summary>    /// 得到隨機哈希加密字符串    /// </summary>    /// <returns></returns>    public static string GetSecurity()    {           string Security = HashEncoding(GetRandomValue());         return Security;    }    /// <summary>    /// 得到一個隨機數值    /// </summary>    /// <returns></returns>    public static string GetRandomValue()    {           Random Seed = new Random();      string RandomVaule = Seed.Next(1, int.MaxValue).ToString();      return RandomVaule;    }    /// <summary>    /// 哈希加密一個字符串，sharejs.com    /// </summary>    /// <param name="Security"></param>    /// <returns></returns>    public static string HashEncoding(string Security)    {                 byte[] Value;      UnicodeEncoding Code = new UnicodeEncoding();      byte[] Message = Code.GetBytes(Security);      SHA512Managed Arithmetic = new SHA512Managed();      Value = Arithmetic.ComputeHash(Message);      Security = "";      foreach(byte o in Value)      {        Security += (int) o + "O";      }      return Security;    }  }}