public static string DesencriptarContrasenia(string pass) { if (string.IsNullOrEmpty(pass) || pass == "null") { return(""); } else { string i = WebConfigurationManager.AppSettings["3DESIV"]; string k = WebConfigurationManager.AppSettings["3DESKey"]; TripleDESUtil descrypto = new TripleDESUtil(i, k); string contraseniaDesencriptada = descrypto.DesEncriptar(pass); return(contraseniaDesencriptada); } }