Qantas A380 uncontained #2 engine failure

[Gegenbeispiel]

211, Prada: RF commanded engine shutdown.

Thanks. You don't really want to add the complexity of spread-spectrum and encryption to what is already a complex system with failure modes. Military and civil safety and reliability are radically different, and should be. If you do need to do this after all, put logic in the FADEC or EEC protocols to detect absence of any wired signals from the rest of the aircraft (FMS, FCC, PFC) - then and only than, change modes and listen for an RF shutdown signal.