Notecard-Based Security System

Hi, I thought it would be interesting to have a notecard-driven security system that would work something like this:

1) Users would drop their "Security Passes" (notecards) into a scanner prim using llAllowInventoryDrop.

2) The scanner would read the notecard.

3) If the note is valid, the scanner would tell a door or turnstile to open via linked message.

4) The scanner would immediately delete the notecard.

This system could be useful for events that charge admission (you buy a no-copy no-mod security pass to get in), as well as a standard security system.

Is this possible? Practical? if so, does anyone know where I could find a script that does this?

Thanks in advance.

Certainly seems possible enough, although you'd have to deal with the fact that scripts can't write to notecards so ensuring that the card isn't forged could be an issue if a creator check isn't sufficient.

Yeah, thats why im kinda thinking of making the cards no-mod and releasing a new one every week or so via group notice

Hmm. I find systems that use llAddToLandPassList() more useful for buying admission. It is too easy for someone to sit their way into a building or something if all you are controlling is the door.

A notecard pass could work though either way, but without a running script to keep state and interact with the admission system, you're going to face the permissions issues mentioned above. You might consider a no-copy attachment or object that is rezzed instead.