An Improved Detecting Mechanism against Wormhole Attacks in Delay Tolerant Networks
Jianing Li, Qiang Wang, Zhenliang Gao · 2018
Delay tolerant network (DTN) is developed for sparse wireless networks with intermittent connectivity. The low-cost, customized hardware components in DTN nodes leave them vulnerable to wormhole attacks. Wormhole attacks are severe threat to normal routing function in DTN. Various methods have been developed to defend wormhole attacks, but most of them don’t work efficiently in actual scenarios. In this paper, we proposed an improved wormhole attacks detection mechanism based on maximal independent sets. Our approach is completely localized, local connectivity information is all we need, requires no extra equipment, which makes the mechanism universally applicable. We evaluated our method with extensive simulations; the results demonstrate that even for extremely sparse networks, the proposed method can still detect wormhole attacks efficiently.