local password = "something random"
local monitor = peripheral.wrap('top')

while true do
        os.pullEvent('disk')

        local file = fs.open('disk/key', 'r')
        local content
        if file then
                content = file.readAll()
                file.close()
        end

        disk.eject('back')

        if content == password then
                rs.setOutput('front', true)
                monitor.setBackgroundColor(colors.lime)
                monitor.clear()
                sleep(3)
        else
                monitor.setBackgroundColor(colors.red)
                monitor.clear()
                sleep(1)
        end

        rs.setOutput('front', false)
        monitor.setBackgroundColor(colors.black)
        monitor.clear()
end