Secure Group Communication in Delay Tolerant Mobile Ad-Hoc Network

  • Prachi Tiwari Radharaman Institute of Technology and Science, Bhopal, M.P, India
Keywords: DTN, Blackhole, Jamming, Vampire, Multicasting, Routing

Abstract

Delay-tolerant networks (DTNs) are well-known for delivering various types of information from different senders in a multicast manner, both in centralised and decentralised networks. Wireless mobile nodes form small networks in which one or more senders transmit data to one or more destinations through intermediate nodes. DTN routing protocols differ from traditional wireless routing protocols. There are security threats in DTNs, such as blackhole attackers dropping data, jamming attacks consuming bandwidth, and Vampire attacks depleting battery power and available bandwidth. This paper proposes a prevention scheme to detect and mitigate all three types of attackers in multicast communication. These attackers can impact performance by generating false replies, flooding with redundant information, and wasting communication power. The primary focus of this paper is on security issues related to DTN routing protocols. In order to counter malicious nodes, a blacklist is maintained, and if a neighbour identifies a node as malicious, it excludes packets from that node. Meanwhile, the neighbour continues sending packets to the malicious node, except for broadcast packets, which are dropped. If a node is found to forward no packets or only some packets by all its neighbours, any reply it gives to route requests is disregarded, and any request it initiates is ignored. Successful data reception at the destination indicates that hop-based data delivery maintains a record of successful transmissions. The proposed security scheme demonstrates improved performance.

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Published
2023-09-07
How to Cite
Tiwari, P. (2023). Secure Group Communication in Delay Tolerant Mobile Ad-Hoc Network. International Journal of Advanced Computer Technology, 12(5), 1-10. Retrieved from http://ijact.org/index.php/ijact/article/view/135