I've looked for a good solution to this, and so far it seems the only answer is to roll my own method of registration. I just want to add a single "key" field more or less to user registration, so only people who know the key may register. Is there any simple way to integrate that without implementing my own registration system? I just thought I'd check before I invested the time into it.
Any recommendations on the easiest way to do something like this? It'll likely come up a lot in this string of projects I'm currently working on, so I'd rather do it the "right way" this time so I don't have to renovate in the future.
