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On Securing Atomic Operations in Multicast AODV
Ahmed M. Abdel Moamen and Haitham S. Hamza

Multicast is an important communication pattern in Mobile Ad-hoc Network (MANET) that involves the transmission of packets to a group of two or more hosts, and thus can support group-oriented applications. Securing multicast routing in MANET is crucial in order to enable effective and efficient implementations of such applications. However, security techniques typically add more complexity to the protocol, and thus, may adversely impact its performance. Thus, a key objective in designing secure multicast routing protocols is to add security while reducing overhead. In this paper, we present a new approach, namely, the atomic security approach for securing the well-known Multicast Ad-hoc On-demand Distance Vector (MAODV). The underlying concept of the proposed approach is to secure basic (atomic) operations in the MAODV instead of the conventional approach of securing functional operations. Extensive simulation results show that the proposed approach based on securing atomic operations does not only decrease the byte overhead by 234% and improve Packet Delivery Ratio (PDR) by 16% as compared to conventional approaches, but it also provides a scalable framework to effectively and efficiently address future attacks on MAODV protocol.

Keywords: Mobile ad-hoc network (MANET), multicast routing protocol, security techniques, multicast routing attacks, MAODV.

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