public static byte[] SignMsgCades(byte[] data, string CertID)
        {
            var oStore = new CAdESCOM.CPStore();
            oStore.Open(CAPICOM.CAPICOM_STORE_LOCATION.CAPICOM_CURRENT_USER_STORE,
                "My", CAPICOM.CAPICOM_STORE_OPEN_MODE.CAPICOM_STORE_OPEN_MAXIMUM_ALLOWED);

            CAPICOM.ICertificate2 icert = null;

            foreach (var cert in oStore.Certificates)
            {
                if ((cert as CAPICOM.ICertificate2).Thumbprint.Contains(CertID))
                {
                    icert = cert as CAPICOM.ICertificate2;
                    break;
                }
            }

            if (icert == null)
            {
                throw new Exception(string.Format("Сертификат для {0} не найден", CertID));
            }

            var oSigner = new CAdESCOM.CPSigner();            
            oSigner.Certificate = icert;
            oSigner.TSAAddress = @"http://www.cryptopro.ru/tsp/tsp.srf";
            var oSignedData = new CAdESCOM.CadesSignedData();
            oSignedData.ContentEncoding = CAdESCOM.CADESCOM_CONTENT_ENCODING_TYPE.CADESCOM_BASE64_TO_BINARY;
            oSignedData.Content = Convert.ToBase64String(data);

            string sSignedMessage = "";
            try
            {
                sSignedMessage = oSignedData.SignCades(oSigner, CAdESCOM.CADESCOM_CADES_TYPE.CADESCOM_CADES_T, true);
            }
            catch (Exception ex)
            {
                throw new Exception("Ошибка подписи: " + Environment.NewLine + 
                    CertID + Environment.NewLine +
                    icert.Thumbprint + " " + icert.SubjectName + Environment.NewLine +
                    ExceptionHelper.GetFullMessage(ex));
            }
            oStore.Close();
            return Convert.FromBase64String(sSignedMessage);
        }