Performance evaluation of secure routing in ad-hoc network environment

We have considered the problem of incorporating security mechanisms in routing protocols for ad hoc networks. There have been various secure routing protocols proposed for the mobile ad hoc network. Secured Ad hoc On Demand Vector Routing (SAODV) protocol considered as one of the popular existing secure routing protocol which have used digital signature and hash chain techniques to secure Ad hoc On Demand Vector Routing (AODV) protocol. Most of these protocols were analyzed by two standard techniques: simulation and security analysis. We have used simulative approach for the performance comparisons between AODV and SAODV routing protocols using Glomosim simulator. The packet deliver fraction, average end-to-end delay, throughput and number of dropped packets metrics have been chosen for comparison. The results have shown that packet delivery fraction decreased in the case of SOADV. Routing overhead and throughput increased in case of SAODV. The simulation result have shown that network performance degrade when security counter measure are taken. Secure routing protocols available today (such as SAODV) still need further optimizations to minimize the processing overhead, delays and to maximize the routing throughputs.