References
[1] SMOKER - Client-managed anonymous authentication and authorization for MQTT, Lukas Läderach & Cédric von Allmen, January 2020
[2] SMOKER - How to Authenticate MQTT Sessions Without Channel- and Broker Security, Reto Koenig & Lukas Läderach & Cédric von Allmen, January 2020
[3] MQTT Version 5.0 Specification, Oasis, March 2019