Robust Defense Scheme Against Selective Drop Attack in Wireless Ad Hoc Networks in NS2

Performance and Security are two critical functions of Wireless Ad-Hoc Networks (WANETs). Network security ensures the integrity, availability, and performance of WANETs. It helps to prevent critical service interruptions and increases economic productivity by keeping networks functioning properly. Since there is no centralized network management in WANETs, these networks are susceptible to packet drop attacks. In selective drop attack, the neighboring nodes are not loyal in forwarding the messages to the next node. It is critical that the illegitimate node must be identified, which overload the host node and isolate them from the network by holding its transmission process. In this paper, we present a Resistive to Selective Drop Attack (RSDA) scheme to provide effective security against selective drop attack. Alight weight RSDA protocol is proposed for detecting malicious nodes in the network under particular drop attack. The RSDA protocol can be integrated with the many existing routing protocols for WANETs such as AODV and DSR. It accomplishes reliability in routing by disabling the link with the highest weight and authenticate the nodes using the Elliptic Curve Digital Signature Algorithm (ECDSA).