rfid = peripheral.wrap("back")
if disk.isPresent("bottom") then
  if disk.hasData("bottom") then
    local file = fs.open("disk/A","r")
    local Alias = file.readLine()
    local Pass = file.readLine()
    file.close()
    if rfid.isPresent() then
      rfid.encode(Alias .. "." ..Pass,"KI")
      os.pullEvent("rfid_written")
      local endfile = fs.open("disk/E","w")
      endfile.close()
      sleep(5)
      os.reboot()
    end
  end
end