Cross-domains Trust Computing Of The Mobile Node In The Internet Of Things

Internet of things (IoTs) is an important part of the new generation of informationtechnology. It has the Two-dimensional Code Identification Equipment, RadioFrequency Identification (RFID), Infrared Sensors, Global Positioning Systems (GPS),Laser Scanners and other information sensing equipment in it. With pre-definedprotocols, any things can be connected into Internet. They establish communicationand exchange information in order to realize the intelligent identification, positioning,tracking, monitoring and management of a network. Thing to Thing (T2T), Human toThing (H2T) and Human to Human (H2H) are three major forms of informationtransactions. Unlike the Internet, IoTs focuses on the integration of the physical worldand the world of information.The Trust relationship between entities in IoTs in addition to inherit thecharacteristics of the Internet and WSNs’, but also takes into account the newproblems brought by the physical and information fusion. An important property ofthe physical world is the universal mobility of material, since the fusion informationworld and the physical world, Trust in the IoTs is bound to meet the universal mobility.At present domestic and international academic research on the networking mobiletrust relationship is still in the exploratory stage.This paper focuses on the mobile node trust migration in IoTs. It based onInternet technology, WSNs’ technology, Grid, Cloud Computing and ServicesComputing. It brings out a Trust Transfer System for Cross-Domain Mobile Nodesand discusses processes of sharing reputations between the isomorphic domain andheterogeneous domain which include trust initialization, integration of trust andconfidence. In isomorphic domain, it based on the original WSN’s trust model. Themobile node moves across domains, the trust will migrate in the form of arecommendation trust. In heterogeneous domain, due to differences in context andtrust model, the trust value directly share in the mobile node will cause the fault in theunderstanding of trust, so this paper adopts Ontology to solve this problem. Ontologymeans the explicit specification of a conceptualization. Ontology as media will uniterecommendation trust between heterogeneous domains. The experimental resultsshow that such migration trust of the mobile node can speed up the convergence rate of the mobile node’s trust computing after it moved across domains without losing thecharacteristics of original trust models.