public static string GetMD5(string sDataIn)        {            MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();            byte[] bytValue, bytHash;            bytValue = System.Text.Encoding.UTF8.GetBytes(sDataIn);            bytHash = md5.ComputeHash(bytValue);            md5.Clear();            string sTemp = "";            for (int i = 0; i < bytHash.Length; i++)            {                sTemp += bytHash[i].ToString("X").PadLeft(2, ‘0‘);            }            return sTemp.ToLower();        }        public static string GetPasswordSalt()        {            string salt = ConfigurationManager.AppSettings["passwordSalt"];            return salt;        }