public byte[] GetKey(string id, out UsbKeyDriveErrorEnum error)
{
DriveInfo _drive = GetUsbKeyDrives().FirstOrDefault();
string _path = Path.Combine(UsbKeyPath(_drive), id);
if (!File.Exists(_path))
{
error = UsbKeyDriveErrorEnum.CannotFindKeyOnUsbKeyDrive;
return(null);
}
try
{
byte[] _key = File.ReadAllBytes(_path);
error = UsbKeyDriveErrorEnum.Ok;
return(_key);
}
catch (Exception)
{
}
error = UsbKeyDriveErrorEnum.ExceptionReadingKeyFile;
return(null);
}
/// <summary>
/// requires a single usb drive marked as key drive to be inserted. Other usb drives are allowed as long the do not have the EncrKeys folder
/// </summary>
public byte[] GetKey(string id, out UsbKeyDriveErrorEnum error)
{
UsbDriveInfo _driveInfo = new UsbDriveInfo();
if (_driveInfo.GetUsbKeyDrives().Count == 0)
{
error = UsbKeyDriveErrorEnum.UsbKeyRequiredToOpen;
return(null);
}
if (_driveInfo.GetUsbKeyDrives().Count > 1)
{
error = UsbKeyDriveErrorEnum.MultipleUsbKeyDrives;
return(null);
}
return(_driveInfo.GetKey(id, out error));
}
/// <summary>
/// requires a single usb drive marked as USBKey to be inserted. Other usb drives are allowed as long the do not have the EncrKeys folder
/// </summary>
public string CreateKey(out UsbKeyDriveErrorEnum error)
{
UsbDriveInfo _driveInfo = new UsbDriveInfo();
if (_driveInfo.GetUsbKeyDrives().Count == 0)
{
error = UsbKeyDriveErrorEnum.NoUsbKeyDrives;
return(null);
}
if (_driveInfo.GetUsbKeyDrives().Count > 1)
{
error = UsbKeyDriveErrorEnum.MultipleUsbKeyDrives;
return(null);
}
return(_driveInfo.CreateKey(out error));
}
/// <summary>
/// Requires a single usb drive to be inserted.
/// </summary>
/// <param name="error"></param>
public void CreateUSBKeyContainer(out UsbKeyDriveErrorEnum error)
{
UsbDriveInfo _driveInfo = new UsbDriveInfo();
if (_driveInfo.GetUsbDrives().Count == 0)
{
error = UsbKeyDriveErrorEnum.NoUsbDrives;
return;
}
if (_driveInfo.GetUsbDrives().Count > 1)
{
error = UsbKeyDriveErrorEnum.MultipleUsbDrives;
return;
}
DriveInfo _drive = _driveInfo.GetUsbDrives().First();
_driveInfo.CreateUsbKeyDrive(_drive, out error);
}
public bool CreateUsbKeyDrive(DriveInfo driveInfo, out UsbKeyDriveErrorEnum error)
{
if (IsUsbKeyDrive(driveInfo))
{
error = UsbKeyDriveErrorEnum.Ok;
return(true);
}
try
{
string _path = UsbKeyPath(driveInfo);
Directory.CreateDirectory(_path);
error = UsbKeyDriveErrorEnum.Ok;
return(true);
}
catch (Exception)
{
error = UsbKeyDriveErrorEnum.ExceptionCreatingKeyDrive;
}
return(false);
}
public string CreateKey(out UsbKeyDriveErrorEnum error)
{
string _id = Guid.NewGuid().ToString().Replace("-", "");
byte[] _key = Generate256BitsOfRandomEntropy();
DriveInfo _drive = GetUsbKeyDrives().FirstOrDefault();
string _path = Path.Combine(UsbKeyPath(_drive), _id);
try
{
File.WriteAllBytes(_path, _key);
error = UsbKeyDriveErrorEnum.Ok;
return(_id);
}
catch
{
}
error = UsbKeyDriveErrorEnum.ExceptionWritingKeyFile;
return(null);
}
public string GetMessage(UsbKeyDriveErrorEnum error) => _Messages[error];
