IEC 62351 - Power Systems Communication Security 5:6.2: Part 5, 6.2: theory of operation (association ID, authenticating, central authority, role-based access control, cryptographic keys, security statistics and events)

A secure communication has an association identifier, authenticates the stations to each other, may rely on a central authority for credentials, applies role-based access control from part 8, manages update keys and session keys (the controlling station issuing session keys), and keeps security statistics and events.