redstone.setOutput("bottom", true)
mon = peripheral.wrap("monitor_0")

local pass = "1234"
local bool = 1

mon.write("Centrale nucleaire. Acces strictement interdit !")

while bool == 1 do
    if disk.isPresent("front") then
        if disk.getLabel("front") == pass then
            bool = 0
            redstone.setOutput("bottom", false)
        end
    end
end