Geodesic
TRM-IoT: A Trust Management Model Based on Fuzzy Reputation for Internet of Things
Computer Science and Information Systems, Tome 8 (2011) no. 4.

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Since a large scale Wireless Sensor Network (WSN) is to be completely integrated into Internet as a core part of Internet of Things (IoT) or Cyber Physical System (CPS), it is necessary to consider various security challenges that come with IoT/CPS, such as the detection of malicious attacks. Sensors or sensor embedded things may establish direct communication between each other using 6LoWPAN protocol. A trust and reputation model is recognized as an important approach to defend a large distributed sensor networks in IoT/CPS against malicious node attacks, since trust establishment mechanisms can stimulate collaboration among distributed computing and communication entities, facilitate the detection of untrustworthy entities, and assist decision-making process of various protocols. In this paper, based on in-depth understanding of trust establishment process and quantitative comparison among trust establishment methods, we present a trust and reputation model TRM-IoT to enforce the cooperation between things in a network of IoT/CPS based on their behaviors. The accuracy, robustness and lightness of the proposed model is validated through a wide set of simulations.
Keywords: Internet of Things, Cyber Physical System, Wireless Sensor Network, Trust, Reputation, Fuzzy Sets 
@article{CSIS_2011_8_4_a14,
     author = {Dong Chen and Guiran Chang and Dawei Sun and Jiajia Li and Jie Jia and Xingwei Wang},
     title = {TRM-IoT: {A} {Trust} {Management} {Model} {Based} on {Fuzzy} {Reputation} for {Internet} of {Things}},
     journal = {Computer Science and Information Systems},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/CSIS_2011_8_4_a14/}
}
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Dong Chen; Guiran Chang; Dawei Sun; Jiajia Li; Jie Jia; Xingwei Wang. TRM-IoT: A Trust Management Model Based on Fuzzy Reputation for Internet of Things. Computer Science and Information Systems, Tome 8 (2011) no. 4. http://geodesic.mathdoc.fr/item/CSIS_2011_8_4_a14/