Interest-based trust management scheme for social internet of things

The integration of social ties between IoT's devices has facilitated the emergence of new paradigm named the Social Internet of Things SIoT. In this paradigm, social relationships can be established in autonomous way by objects creating virtual communities with shared interests. To facilitate the location of the desired interests and enhance the cooperation between SIoT's devices, the trust systems have been proven to be an effective solution in such interconnected environment. In this paper, we propose an interest-based trust management scheme for SIoT. This scheme assesses the trust of SIoT's devices according to the interest preferences of the trustor (i.e., assessor object). Moreover, it introduces a new recommendation system based on the similarity in terms of interest preferences between the trustor and the recommender (i.e., provides recommendation about the assessed object) to enhance the location of the desired services. Simulation results validate the convergence of the proposed trust mechanism, and show its gain in terms of transaction success rate.