Password protected computer

[DemolitionDerby 0]

Hi,

I have looked around for a way to do it but I have not find anything about it.

I would like to know if it is possible to password protect a computer so that it asks for either a username and a password or simply a password.

Also, is it possible to remove the possibility for the user to terminate the program using CTRL-ALT-C?

 

Thanks!

[Log 16]

Is a simple example.

To nobody could know the password, you need to add hashing.

local event = require('event')
local term = require('term')
local gpu = require('component').gpu
local W, H = gpu.getResolution()
local color1, color2 = 0x00FF00, 0xFF0000
local password = '123456789' -- needed hash function, for most security

event.shouldInterrupt = function() return false end -- blocking Ctrl+Alt+C
event.shouldSoftInterrupt = function() return false end -- blocking Ctrl+C

gpu.setForeground(color1)
while true do
  term.clear()
  term.setCursor(W/2-10, H/2)
  term.write('PASSWORD: ')
  local input = term.read(_,_,_,'*'):sub(1, -2)
  if input == password then
    term.clear()
    term.setCursor(1, 1)
    gpu.setForeground(0xFFFFFF)
    os.exit()
  else
    term.clear()
    gpu.setForeground(color2)
    term.setCursor(W/2-6, H/2)
    term.write('ACCESS DENIED')
    gpu.setForeground(color1)
    os.sleep(3)
  end
end