Issue No. 05 - May (2014 vol. 26)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TKDE.2013.105
Michele Nitti , Dept. of Electr. & Electron. Eng., Univ. of Cagliari, Cagliari, Italy
Roberto Girau , Dept. of Electr. & Electron. Eng., Univ. of Cagliari, Cagliari, Italy
Luigi Atzori , Dept. of Electr. & Electron. Eng., Univ. of Cagliari, Cagliari, Italy
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.
trusted computing, Internet, Internet of Things, peer-to-peer computing, social networking (online)
M. Nitti, R. Girau and L. Atzori, "Trustworthiness Management in the Social Internet of Things," in IEEE Transactions on Knowledge & Data Engineering, vol. 26, no. 5, pp. 1253-1266, 2014.