From 9727c39b728324e7cd963b47f2974f7245708df4 Mon Sep 17 00:00:00 2001
From: Jake Howard <jake3497@hotmail.co.uk>
Date: Sun, 10 Aug 2014 22:44:04 +0100
Subject: [PATCH] initiated file for checking authentication of drive

---
 USB Lockdown/authentication.cs | 65 ++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 USB Lockdown/authentication.cs

diff --git a/USB Lockdown/authentication.cs b/USB Lockdown/authentication.cs
new file mode 100644
index 0000000..97c75ac
--- /dev/null
+++ b/USB Lockdown/authentication.cs	
@@ -0,0 +1,65 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.IO;
+
+namespace USB_Lockdown
+{
+    class authentication
+    {
+        internal static Thread authenticationThread;
+        internal static Thread deviceScanner;
+        internal static void startScanning()
+        {
+            Thread authenticationThread = new Thread(beginAuthentication);
+        }
+
+        internal static void beginAuthentication()
+        {
+            Thread deviceScanner = new Thread(deviceScan.scanDevices);
+            deviceScanner.Join(); //the thread will exit when a valid drive has been found
+
+            //code here to unlock computer and 
+        }
+    }
+    class deviceScan
+    {
+        internal static DriveInfo validDrive;
+        internal static DriveInfo[] driveListing;
+        private static bool driveFound = false;
+
+
+        internal static void scanDevices()
+        {
+            while (!driveFound) {
+                driveListing = DriveInfo.GetDrives();
+                foreach (DriveInfo currentDrive in driveListing)
+                {
+                    if (File.Exists(currentDrive.Name + "\\LockDown.config")) // the first check for a valid drive. Could be something else, but this is a lightweight test to be done first!
+                    {
+                        if (driveValidate(currentDrive))
+                        {
+                            validDrive = currentDrive;
+                            driveFound = true;
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+
+        internal static bool driveValidate(DriveInfo drive){
+
+            return true;
+        }
+
+        internal static void resetValues()
+        {
+            validDrive = null;
+            driveListing = null;
+            driveFound = false;
+        }
+    }
+}