Trust dynamicity for IoT: How do i trust your social IoT cluster?

Abstract

The Social IoT (SIoT) enhances the traditional Internet of Things (IoT) by integrating social relationships between device owners. This paper presents a dynamic trust framework specifically designed for SIoT environments, with the objective of providing security against malicious attacks targeting IoT devices. The framework offers a multi-dimensional analysis of trust, emphasizing the behaviours and contextual interactions of domestic devices. A prototype implementing the proposed framework is introduced and evaluated across three different use cases showing how to assess device reputation, enable dynamic device integration, and secure communication within device clusters. The evaluation results highlight the framework’s ability to enhance the reliability of device interactions and ensure seamless interoperability among devices utilizing different trust models. This significant improvement in trust management contributes to more secure and efficient SIoT operations. The findings underscore the critical role of dynamic trust adaptation and interoperability in creating a cohesive and secure SIoT ecosystem.