USB Auth

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using System.Diagnostics;
using System.Net;
using Renci.SshNet;
using System.Threading;
using System.Xml;

namespace USB_auth
{
    class Program
    {
        static void Main(string[] args)
        {
            string Host = "ts.norwhales.com";
            int Port = 20522;
            String RemoteFileName = "/home/henrik/passwd/passwd.kdbx";
            string dir = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),"passwd\\");
            if (!Directory.Exists(dir))
            {
                Directory.CreateDirectory(dir);
            }
                var fileName = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "passwd\\passwd.kdbx");
            Console.WriteLine(fileName);
            String LocalDestinationFilename = fileName;
            String Username = "henrik";
            string pass = "";
            bool tryagain = true;
            while (tryagain)
            {
                try
                {
                    Console.Write("Passord: ");
                    ConsoleKeyInfo key;
                    pass = "";
                    do
                    {
                        key = Console.ReadKey(true);

                        if (key.Key != ConsoleKey.Backspace && key.Key != ConsoleKey.Enter)
                        {
                            pass += key.KeyChar;
                            Console.Write("*");
                        }
                        else
                        {
                            if (key.Key == ConsoleKey.Backspace && pass.Length > 0)
                            {
                                pass = pass.Substring(0, (pass.Length - 1));
                                Console.Write("\b \b");
                            }
                        }
                    }
                    while (key.Key != ConsoleKey.Enter);
                    Console.WriteLine();
                    tryagain = false;
                    using (var sftp = new SftpClient(Host, Port, Username, pass))
                    {
                        sftp.Connect();

                        using (var file = File.OpenWrite(LocalDestinationFilename))
                        {
                            sftp.DownloadFile(RemoteFileName, file);
                        }

                        sftp.Disconnect();
                    }
                }
                catch (Renci.SshNet.Common.SshAuthenticationException)
                {
                    Console.WriteLine("Feil passord!");
                    tryagain = true;
                }
            }
            Console.WriteLine("Ferdig!");
            Console.WriteLine("Åpner Keepass");
            try
            {
                string xmlFile = "KeePass.config.xml";
                System.Xml.XmlDocument xmlDoc = new System.Xml.XmlDocument();
                xmlDoc.PreserveWhitespace = true;
                xmlDoc.Load(xmlFile);
                xmlDoc.SelectSingleNode("Configuration/Application/LastUsedFile/Path").InnerText = fileName;
                xmlDoc.Save(xmlFile);


                Process.Start("KeePass.exe");
            }
            catch (System.ComponentModel.Win32Exception)
            {
                Console.WriteLine("Kunne ikke åpne Keepass! Vær sikker på at Keepass er installert i samme mappe som dette programmet!");
            }
            catch (FileNotFoundException)
            {
                Console.WriteLine("Keepass konfigurasjonsfil ikke funnet! Kontroller at KeePass er installert i samme mappe som dette programmet");
            }

            Thread.Sleep(3000);

        }
    }
}