دانلود رایگان مقاله انگلیسی مدل امنیتی چندپخشی برای اینترنت اشیای مبتنی بر آگاهی نسبت به محتوا - IEEE 2017

Abstract

Internet of Things (IoT) devices are resource constrained devices in terms of power, memory, bandwidth, and processing. On the other hand, multicast communication is considered more efficient in group oriented applications compared to unicast communication as transmission takes place using fewer resources. That is why many of IoT applications rely on multicast in their transmission. This multicast traffic need to be secured specially for critical applications involving actuators control. Securing multicast traffic by itself is cumbersome as it requires an efficient and scalable Group Key Management (GKM) protocol. In case of IoT, the situation is more difficult because of the dynamic nature of IoT scenarios. This paper introduces a solution based on using context aware security server accompanied with a group of key servers to efficiently distribute group encryption keys to IoT devices in order to secure the multicast sessions. The proposed solution is evaluated relative to the Logical Key Hierarchy (LKH) protocol. The comparison shows that the proposed scheme efficiently reduces the load on the key servers. Moreover, the key storage cost on both members and key servers is reduced.

CONLUSION AND FUTURE WORK

This paper introduces a new GKM security model; CASMA. The model deals with the dynamic nature of IoT application scenarios using a context aware security server. This server assigns members to the appropriate key server to register with and obtain the keying materials based on collected context information. The proposal is evaluated by measuring and comparing both communication and storage costs of CASMA to the traditional LKH protocol. The evaluation shows a significant improvement in performance, scalability, resilience, and redundancy when CASMA is used instead of traditional LKH.