function signData() {
  var dataToSign = document.getElementById("dataToSign").value;
  SignCreate(currentSubjectNameFIO, dataToSign);
}

function SignCreate(currentSubjectNameFIO, dataToSign) {
  console.log("ATTENTION!", currentSubjectNameFIO);

  return new Promise(function (resolve, reject) {
    cadesplugin.async_spawn(
      function* (args) {
        var oStore = yield cadesplugin.CreateObjectAsync("CAdESCOM.Store");
        yield oStore.Open(
          cadesplugin.CAPICOM_CURRENT_USER_STORE,
          cadesplugin.CAPICOM_MY_STORE,
          cadesplugin.CAPICOM_STORE_OPEN_MAXIMUM_ALLOWED
        );

        var oStoreCerts = yield oStore.Certificates;
        var currentUserCertCnt = yield oStoreCerts.Count;

        var oCertificates = yield oStoreCerts.Find(
          cadesplugin.CAPICOM_CERTIFICATE_FIND_SUBJECT_NAME,
          currentSubjectNameFIO
        );
        console.log(currentUserCertCnt);
        if (currentUserCertCnt === 0) {
          err = "Certificate not found: " + currentSubjectNameFIO;
          alert(err);
          args[1](err);
        }
        var oCertificate = yield oCertificates.Item(1);
        var oSigner = yield cadesplugin.CreateObjectAsync("CAdESCOM.CPSigner");
        console.log(oSigner);

        yield oSigner.propset_Certificate(oCertificate);
        yield oSigner.propset_CheckCertificate(true);
        yield oSigner.propset_TSAAddress("http://cryptopro.ru/tsp/");

        var oSignedData = yield cadesplugin.CreateObjectAsync(
          "CAdESCOM.CadesSignedData"
        );
        yield oSignedData.propset_Content(dataToSign);
        try {
          var sSignedMessage = yield oSignedData.SignCades(
            oSigner,
            cadesplugin.CADESCOM_CADES_X_LONG_TYPE_1
          );
        } catch (e) {
          err = cadesplugin.getLastError(e);
          alert("Failed to create signature. Error: " + err);
          args[1](err);
        }
        yield oStore.Close();
        return args[0](sSignedMessage);
      },
      resolve,
      reject
    );
  });
}

        var oSigner = yield cadesplugin.CreateObjectAsync("CAdESCOM.CPSigner");