Purchased key expiration

This may be a dumb question but I had bought a second Rust key to give to my friend so he can play, but he does not have internet access right now. Does anyone know if a key could possibly expire if it isn’t registered after a given amount of time? I would like to assume that it wont, but because of the early state of the game I cannot not be certain and was just curious.

No.

No, as in it doesn’t expire or no, as in you don’t know? Because the beginning of the question asks if anyone knows. Just typing “No.” isn’t a very clear answer.

No, as in it doesn’t expire.

ok thanks

That being said, if it hasn’t been used for a very large amount of time and someone illegally generated some keys, they might do an unused key reset. But you’ll be fine. Don’t worry.