Detailed Security Evaluation of ARANz, ARAN and AODV Protocols

Abstract

Ad-Hoc networks are self-organized wireless networks. Finding a secure and efficient route leading from a specific source node to an intended destination node is one of the serious concerns in mobile Ad-Hoc networks. ARANz is one of the significant protocols that has been proposed for such networks. ARANz implements the authentication methods used with the original Authenticated Routing for Ad-Hoc Networks (ARAN) and enhance security and attain robustness by dividing the network into zones and introducing several local certificate authority servers. Using restricted directional flooding, ARANz reveals improved scalability and performance. The purpose of this paper is to discuss in details the misbehavior detection system used with ARANz protocol, along with presenting a detailed simulated security and performance evaluation of ARANz and other existing protocols. Through extensive simulation using GloMoSim simulator, a detailed security evaluation has been conducted to evaluate ARANz and compare it with the original ARAN and Ad-Hoc On-demand Distance Vector (AODV). Simulation results confirm the effectiveness of ARANz in discovering secure routes within quite large networks including large number of moving nodes, while retaining the minimum packet routing load. Results also prove that ARANz has superior performance regardless malicious nodes percentage conducting different types of attacks such as modification, black hole, grey hole and fabrication. Hence, ARANz can be a good choice for Ad-Hoc networks established among students on a campus or peers at a conference, where predeployment of some keys and certificates is possible.