Secure Routing in IoT: Evaluation of RPL Secure Mode under Attacks

05/24/2019
by   Ahmed Raoof, et al.
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As the Routing Protocol for Low Power and Lossy Networks (RPL) became the standard for routing in the Internet of Things (IoT) networks, many researchers had investigated the security aspects of this protocol. However, no work (to the best of our knowledge) has investigated the use of the security mechanisms included in the protocol standard, due to the fact that there was no implementation for these features in any IoT operating system yet. A partial implementation of RPL security mechanisms was presented recently for Contiki operating system (by Perazzo et al.), which provided us with the opportunity to examine RPL security mechanisms. In this paper, we investigate the effects and challenges of using RPL security mechanisms under common routing attacks. First, a comparison of RPL performance, with and without its security mechanisms, under three routing attacks (Blackhole, Selective- Forward, and Neighbor attacks) is conducted using several metrics (e.g., average data packet delivery rate, average data packet delay, average power consumption... etc.) Based on the observations from this comparison, we came with few suggestions that could reduce the effects of such attacks, without having added security mechanisms for RPL.

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