Regulating data sharing across MQTT environments

Nowadays, due to the personal nature of managed data, numerous Internet Things (IoT) applications represent a potential threat user privacy. In order address this issue, several access control models have been specifically designed for IoT. The great majority these proposals adopt centralized enforcement mechanisms communication IoT devices operating in same environment. However, approaches cannot regulate data exchange operated by connected different environments. To best our knowledge, effective capable controlling forms communications are still missing. Therefore, paper, we do step fill void, focusing on built top MQTT, widely used protocol We propose an framework sharing across bridged MQTT environments, basis both policies and preferences. proposed approach regulates among belonging interconnected environments means decentralized mechanism. Experimental analyses show efficiency approach.