Issue No.05 - May (2014 vol.26)
Michele Nitti , Department of Electrical and Electronic Engineering, University of Cagliari, Cagliari, Italy
Roberto Girau , Department of Electrical and Electronic Engineering, University of Cagliari, Cagliari, Italy
Luigi Atzori , Department of Electrical and Electronic Engineering, University of Cagliari, Cagliari, Italy
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TKDE.2013.105
The integration of social networking concepts into the Internet of things has led to the Social Internet of Things (SIoT) paradigm, according to which objects are capable of establishing social relationships in an autonomous way with respect to their owners with the benefits of improving the network scalability in information/service discovery. Within this scenario, we focus on the problem of understanding how the information provided by members of the social IoT has to be processed so as to build a reliable system on the basis of the behavior of the objects. We define two models for trustworthiness management starting from the solutions proposed for P2P and social networks. In the subjective model each node computes the trustworthiness of its friends on the basis of its own experience and on the opinion of the friends in common with the potential service providers. In the objective model, the information about each node is distributed and stored making use of a distributed hash table structure so that any node can make use of the same information. Simulations show how the proposed models can effectively isolate almost any malicious nodes in the network at the expenses of an increase in the network traffic for feedback exchange.
General, Computer Systems Organization, Communication/Networking and Information Technology, Distributed Systems,
Michele Nitti, Roberto Girau, Luigi Atzori, "Trustworthiness Management in the Social Internet of Things", IEEE Transactions on Knowledge & Data Engineering, vol.26, no. 5, pp. 1, May 2014, doi:10.1109/TKDE.2013.105