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Subject: search.filters.subject.Trust management

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    Trust-aware and cooperative routing protocol for IoT security
    (2020-06) Djedjig, Nabil; Tandjaoui, Djamel; Medjek, Faiza; Romdhani, Imed
    The resource-constrained nature of IoT objects makes the Routing Protocol for Low-power and Lossy Networks (RPL) vulnerable to several attacks. Although RPL specification provides encryption protection to control messages, RPL is still vulnerable to internal attackers and selfish behaviours. To address the lack of robust security mechanisms in RPL, we design a new Metric-based RPL Trustworthiness Scheme (MRTS) that introduces trust evaluation for secure routing topology construction. Extensive simulations show that MRTS is efficient in terms of packet delivery ratio, energy consumption, nodes’ rank changes, and throughput. In addition, a mathematical modelling analysis shows that MRTS meets the requirements of consistency, optimality, and loop-freeness and that the proposed trust-based routing metric has the isotonicity and monotonicity properties required for a routing protocol. By using game theory concepts, we formally describe MRTS as a strategy for the iterated Prisoner’s Dilemma and demonstrate its cooperation enforcement characteristic. Both mathematical analysis and evolutionary simulation results show clearly that MRTS, as a strategy, is an efficient approach in promoting the stability and the evolution of the Internet of Things network.
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    Trust management in IoT routing protocol
    (CERIST, 2015-04-19) Djedjig, Nabil; Tandjaoui, Djamel; Medjek, Faiza
    The Routing Protocol for Low-Power and Lossy Networks (RPL) is the routing protocol standardized for constrained environments such as 6LoWPAN networks, and is considered as the routing protocol of the Internet of Things (IoT). However, this protocol is subject to several internal and external attacks. In this paper, we investigate a trust management protocol in RPL. Our idea of trust management in RPL is to establish a dynamic trust relationship between the different nodes involved in routing. In fact, RPL organizes a logical representation of the network topology using control messages. In our proposed protocol, we strengthen RPL by adding a new trustworthiness metric during RPL construction and maintenance. This metric allows a node to decide whether or not to trust the other nodes during the construction of the topology.