Looking for help to make a very secure password lock using rednet and authentication servers

Hello computercraft forums,
i was wondering how i would code a computer door lock with acess monitoring and authentication to 2 login servers.
i know this might sound complex but if u can help could u please help me
ta
seksan2

Like All Pro's say:

Make a code, so we see you try. If you wont try the change isnt big someone gives you a code.