individual <--- [x] ----> individual
where x is medium, such as one-time pad or computers, whereby:
individual <--- machine --{crypto}-- machine ---> individual
to a potential artificial intelligence context of machine borne crypto...
A.I. machine <--- {crypto} ---> A.I. machine
computers themselves developing secrets, privacy, securing POV.
individual <--- A.I. machine <--{crypto}--> hidden attacker
perhaps zoning humans out of machines, parasite/host relations