private async Task <List <SecondaryAuthenticationFactorInfo> > getConnectedRegisteredDeviceList(IReadOnlyList <SecondaryAuthenticationFactorInfo> devicesToCheck)
{
//byte[] deviceConfigurationDataArray;
string selector = SmartCardReader.GetDeviceSelector();
selector += " AND System.Devices.DeviceInstanceId:~~\"Ledger\"";
byte[] response = { 0 };
string sw1sw2 = null;
string NanosATR = "3b00";
byte[] deviceDlockState = new byte[1];
byte[] deviceIdArray = new byte[16];
List <SecondaryAuthenticationFactorInfo> outList = new List <SecondaryAuthenticationFactorInfo>();
DeviceInformationCollection readers = await DeviceInformation.FindAllAsync(selector);
foreach (SecondaryAuthenticationFactorInfo device in devicesToCheck)
{
//CryptographicBuffer.CopyToByteArray(device.DeviceConfigurationData, out deviceConfigurationDataArray);
foreach (DeviceInformation smartcardreader in readers)
{
SmartCardReader reader = await SmartCardReader.FromIdAsync(smartcardreader.Id);
SmartCardReaderStatus readerstatus = await reader.GetStatusAsync();
IReadOnlyList <SmartCard> cards = await reader.FindAllCardsAsync();
foreach (SmartCard card in cards)
{
try
{
IBuffer ATR = await card.GetAnswerToResetAsync();
string ATR_str = CryptographicBuffer.EncodeToHexString(ATR);
if (ATR_str.Equals(NanosATR))
{
SmartCardConnection connection = await card.ConnectAsync();
response = await Apdu.TransmitApduAsync(connection, Apdu.getDeviceGuidCmdApdu);
sw1sw2 = Apdu.ApduResponseParser(response, out response);
deviceIdArray = response;
string deviceId = BitConverter.ToString(response).Replace("-", "");
if (deviceId == device.DeviceId) //update config data with dLockState and increment counter
{
outList.Add(device);
}
connection.Dispose();
}
}
catch
{
}
}
}
}
return(outList);
}
private async Task PerformAuthentication()
{
string NanosATR = "3b00";
bool showNotificationFlag = true;
string selector = SmartCardReader.GetDeviceSelector();
selector += " AND System.Devices.DeviceInstanceId:~~\"Ledger\"";
DeviceInformationCollection devices = await DeviceInformation.FindAllAsync(selector);
foreach (DeviceInformation device in devices)
{
SmartCardReader reader = await SmartCardReader.FromIdAsync(device.Id);
SmartCardReaderStatus readerstatus = await reader.GetStatusAsync();
//System.Diagnostics.Debug.WriteLine("Reader : " + reader.Name + " status : " + readerstatus.ToString());
IReadOnlyList <SmartCard> cards = await reader.FindAllCardsAsync();
foreach (SmartCard card in cards)
{
try
{
IBuffer ATR = await card.GetAnswerToResetAsync();
string ATR_str = CryptographicBuffer.EncodeToHexString(ATR);
if (ATR_str.Equals(NanosATR))
{
Task t = AuthenticateWithSmartCardAsync(card);
await t;
}
}
catch (CompanionDeviceNotFoundException ex)
{
ex.DisplayError();
break;
}
catch (UnableTogetNonceFromDeviceException ex)
{
ex.DisplayError();
showNotificationFlag = false;
break;
}
catch (UnauthorizedUserException ex)
{
ex.DisplayError();
await SecondaryAuthenticationFactorAuthentication.ShowNotificationMessageAsync(
"",
SecondaryAuthenticationFactorAuthenticationMessage.UnauthorizedUser);
//ShowToastNotification("Wrong Response");
showNotificationFlag = false;
break;
}
catch (LogInDeniedByUserException ex)
{
ex.DisplayError();
await SecondaryAuthenticationFactorAuthentication.ShowNotificationMessageAsync(
"",
SecondaryAuthenticationFactorAuthenticationMessage.TryAgain);
showNotificationFlag = false;
break;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("[PerformAuthentication] Unhandled Exception / " + ex.Message);
showNotificationFlag = false;
return;
}
finally
{
}
}
}
if (showNotificationFlag)
{
var loader = new Windows.ApplicationModel.Resources.ResourceLoader();
var str = loader.GetString("LookingForDevice");
await SecondaryAuthenticationFactorAuthentication.ShowNotificationMessageAsync(
str,
SecondaryAuthenticationFactorAuthenticationMessage.LookingForDevicePluggedin);
}
showNotificationFlag = true;
}
private async Task writeConnectedRegisteredDevices()
{
string NanosATR = "3b00";
string selector = SmartCardReader.GetDeviceSelector();
selector += " AND System.Devices.DeviceInstanceId:~~\"Ledger\"";
byte[] response = { 0 };
string sw1sw2 = null;
byte[] deviceDlockState = new byte[1];
byte[] deviceIdArray = new byte[16];
string txt = "";
DeviceInformationCollection readers = await DeviceInformation.FindAllAsync(selector);
IReadOnlyList <SecondaryAuthenticationFactorInfo> RegisteredDeviceList_addEvent = await SecondaryAuthenticationFactorRegistration.FindAllRegisteredDeviceInfoAsync(
SecondaryAuthenticationFactorDeviceFindScope.User);
List <SecondaryAuthenticationFactorInfo> ConnectedRegisteredDeviceList = await getConnectedRegisteredDeviceList(RegisteredDeviceList_addEvent);
foreach (SecondaryAuthenticationFactorInfo device in ConnectedRegisteredDeviceList)
{
foreach (DeviceInformation smartcardreader in readers)
{
SmartCardReader reader = await SmartCardReader.FromIdAsync(smartcardreader.Id);
SmartCardReaderStatus readerstatus = await reader.GetStatusAsync();
IReadOnlyList <SmartCard> cards = await reader.FindAllCardsAsync();
foreach (SmartCard card in cards)
{
try
{
IBuffer ATR = await card.GetAnswerToResetAsync();
string ATR_str = CryptographicBuffer.EncodeToHexString(ATR);
if (ATR_str.Equals(NanosATR))
{
SmartCardConnection connection = await card.ConnectAsync();
response = await Apdu.TransmitApduAsync(connection, Apdu.getDeviceGuidCmdApdu);
sw1sw2 = Apdu.ApduResponseParser(response, out response);
deviceIdArray = response;
string deviceId = BitConverter.ToString(response).Replace("-", "");
if (deviceId == device.DeviceId) //update config data with dLockState
{
if (device.PresenceMonitoringMode != SecondaryAuthenticationFactorDevicePresenceMonitoringMode.AppManaged)
{
// Skip the device which doesn't need to be monitored in the background task
continue;
}
await device.UpdateDevicePresenceAsync(SecondaryAuthenticationFactorDevicePresence.Present);
response = await Apdu.TransmitApduAsync(connection, Apdu.getDlockStateCmdApdu);
sw1sw2 = Apdu.ApduResponseParser(response, out response);
deviceDlockState = response;
string deviceConfigString = CryptographicBuffer.ConvertBinaryToString(0, device.DeviceConfigurationData);
char[] deviceConfigCharArray = new char[deviceConfigString.Count()];
deviceConfigCharArray = deviceConfigString.ToCharArray();
string deviceConfigStringNew = "";
int count = device.DeviceFriendlyName.Count();
if (deviceDlockState[0] == 0)
{
if (deviceConfigCharArray[35] == '0') // Indicates if device was used for last login
{
deviceConfigStringNew = device.DeviceId + "-0-0-" + device.DeviceFriendlyName + "-" + deviceConfigString.Substring(35 + 1 + count + 1 + 1);
}
else
{
deviceConfigStringNew = device.DeviceId + "-0-1-" + device.DeviceFriendlyName + "-" + deviceConfigString.Substring(35 + 1 + count + 1 + 1);
}
}
else
{
if (deviceConfigCharArray[35] == '0')
{
deviceConfigStringNew = device.DeviceId + "-1-0-" + device.DeviceFriendlyName + "-" + deviceConfigString.Substring(35 + 1 + count + 1 + 1);
}
else
{
deviceConfigStringNew = device.DeviceId + "-1-1-" + device.DeviceFriendlyName + "-" + deviceConfigString.Substring(35 + 1 + count + 1 + 1);
}
}
// Get a Ibuffer from combinedDataArray
IBuffer deviceConfigData = CryptographicBuffer.ConvertStringToBinary(deviceConfigString, 0);
await SecondaryAuthenticationFactorRegistration.UpdateDeviceConfigurationDataAsync(device.DeviceId, deviceConfigData);
}
connection.Dispose();
}
}
catch (Exception e)
{
}
}
}
txt += CryptographicBuffer.ConvertBinaryToString(0, device.DeviceConfigurationData) + Environment.NewLine;
}
StorageFolder folder = ApplicationData.Current.LocalFolder;
StorageFile ConnectedRegisteredDeviceListFile = await folder.CreateFileAsync("connectedRegisteredDeviceList.txt", CreationCollisionOption.ReplaceExisting);
await FileIO.WriteTextAsync(ConnectedRegisteredDeviceListFile, txt);
}