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Sécurité et confidentialité dans l’IoT

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Publications

  • 2019
    Hamdi Ouechtati, Nadia Ben Azzouna, Lamjed Ben Said

    A fuzzy logic based trust-ABAC model for the Internet of Things

    In International Conference on Advanced Information Networking and Applications (pp. 1157-1168). Cham: Springer International Publishing., 2019

    Résumé

    The Internet of Things (IoT) integrates a large amount of everyday life devices from heterogeneous network environments, bringing a great challenge into security and reliability management. In order to cope with certain challenges posed by device capacity and the nature of IoT networks, a lightweight access control model is needed to resolve security and privacy issues. In this paper, we present Fuzzy logic based Trust-ABAC model, an access control model for the Internet of Things. Our model for the IoT is an improvement of our previous work Trust-ABAC by a new Fuzzy logic-based model in which we consider an evaluation of trust based on recommendations and social relationship that can deal effectively with certain types of malicious behavior that intend to mislead other nodes. Results prove the performance of the proposed model and its capabilities to detect the collision and singular attacks with high precision.

  • Hamdi Ouechtati, Nadia Ben Azzouna, Lamjed Ben Said

    Towards a self-adaptive access control middleware for the Internet of Things

    In 2018 International Conference on Information Networking (ICOIN) (pp. 545-550). IEEE., 2018

    Résumé

    In order to cope with certain challenges posed by IoT environment and device capacity, a Self-Adaptive access control model is needed to resolve security and privacy issues. The use of complex encryption algorithms is infeasible due to the volatile nature of IoT environment and pervasive devices with limited resources. In this paper, we propose an access control middleware for the Internet of Things. The latter is an extension of the ABAC model in order to take into account the subject behavior and the trust value in the decision making process. In this work, we introduce a dynamic adaptation process of access control rules based on the risk value, the policies and rule sets which can effectively improve the security of IoT applications and produce more efficient access control mechanisms for the Internet of Things.

  • Hamdi Ouechtati, Nadia Ben Azzouna

    Trust-abac towards an access control system for the internet of things

    In International Conference on Green, Pervasive, and Cloud Computing (pp. 75-89). Cham: Springer International Publishing., 2017

    Résumé

    In order to cope with certain challenges posed by device capacity and the nature of IoT networks, a lightweight access control model is needed to resolve security and privacy issues. The use of complex encryption algorithms is infeasible due to the volatile nature of IoT environment and pervasive devices with limited resources. In this paper, we present the Trust-ABAC, an access control model for the Internet of Things, in which a coupling between the access control based on attributes and the trust concept is done. We evaluated the performance of Trust-ABAC through an experiment based on a simulation. We used the OMNeT++ simulator to show the efficiency of our model in terms of power consumption, response time and the average number of messages generated by an access request. The obtained results of simulation prove the good scalability of our Trust-ABAC model.