/// <summary>
 /// Create des iv
 /// </summary>
 /// <returns></returns>
 public static string CreateDesIv()
 {
     return(CryptoHelper.GetRandomStr(8));
 }
 /// <summary>
 /// Create des key
 /// </summary>
 /// <returns></returns>
 public static string CreateDesKey()
 {
     return(CryptoHelper.GetRandomStr(24));
 }