rfid-credential-provider/Installer/RegisterSystem/Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Win32;
using System.IO;
using System.Runtime.InteropServices;

namespace RegisterSystem
{
	class Program
	{
		[DllImport("kernel32.dll", SetLastError = true)]
		public static extern bool Wow64DisableWow64FsRedirection(ref IntPtr ptr);

		[DllImport("kernel32.dll", SetLastError = true)]
		public static extern bool Wow64EnableWow64FsRedirection(ref IntPtr ptr);

		private static bool isBoxed = (!Environment.Is64BitProcess && Environment.Is64BitOperatingSystem);
		public static readonly RegistryKey Software = RegistryKey.OpenBaseKey(Microsoft.Win32.RegistryHive.LocalMachine, (isBoxed) ? RegistryView.Registry64 : RegistryView.Default).OpenSubKey("SOFTWARE", true);
		static void Main(string[] args)
		{
			try
			{
				Console.WriteLine("Generating Registry Structure...");
				RegistryKey Base = Software.CreateSubKey("KORNET");
				Base = Base.CreateSubKey("WinLogin");

				Console.WriteLine("Adding default configuration...");
				Base.SetValue("Port", "COM3");
				//Base.SetValue("Message Start", 0x02);
				//Base.SetValue("Message End", 0x0d);

				Console.WriteLine("Reversing Entropy...");
				string randomSalt = Hash((new Random().Next(int.MaxValue) + DateTime.Now.Ticks).ToString());

				Console.WriteLine("Enumerating the null set...");
				Base = Base.CreateSubKey("Keys");
				Base.SetValue("Salt", randomSalt);

				Console.WriteLine("Doing magical Windows-y things...");
				string provider = Environment.Is64BitOperatingSystem ? "64" : "32";
				provider = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location) + "\\CredentialProviders\\" + provider + "\\RfidCredentialProvider.dll";
				string to = Environment.GetEnvironmentVariable("SystemRoot") + "\\System32\\RfidCredentialProvider.dll";

				IntPtr p = new IntPtr();

				if (isBoxed)
				{
					Wow64DisableWow64FsRedirection(ref p);
				}

				if (File.Exists(to))
				{
					File.Delete(to);
				}
				File.Copy(provider, to);

				if (isBoxed)
				{
					Wow64EnableWow64FsRedirection(ref p);
				}
			}
			catch (Exception ex)
			{
				Console.WriteLine(ex.Message);
				Console.ReadLine();
				throw ex;
			}
		}

		private static string Hash(string toHash)
		{
			System.Security.Cryptography.SHA1CryptoServiceProvider x = new System.Security.Cryptography.SHA1CryptoServiceProvider();
			byte[] data = System.Text.Encoding.ASCII.GetBytes(toHash);
			data = x.ComputeHash(data);
			string o = BitConverter.ToString(data).Replace("-", "").ToUpper();
			return o;
		}
	}
}