I don't know but have wondered about this sort of thing before. There is a Wikipedia article on 'Key ceremony'[0] that seems to indicate an in-real-life shared

I don't know but have wondered about this sort of thing before. There is a Wikipedia article on 'Key ceremony'[0] that seems to indicate an in-real-life shared secret creation and or sharing event. (https://en.wikipedia.org/wiki/Key_ceremony)[0] https://en.wikipedia.org/wiki/Key_ceremony)[0]