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SECURITY IN AD-HOC WIRELESS NETWORKS full report


S. Sumathy1 and B.Upendra Kumar2
1School of Computing Sciences, VIT University, Vellore-632 014, Tamilnadu, India
2 School of Computing Sciences, VIT University, Vellore-632 014, Tamilnadu, India

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ABSTRACT
Secured communication in ad hoc wireless networks is primarily important, because the communication
signals are openly available as they propagate through air and are more susceptible to attacks ranging
from passive eavesdropping to active interfering. The lack of any central coordination and shared
wireless medium makes them more vulnerable to attacks than wired networks. Nodes act both as hosts
and routers and are interconnected by Multi- hop communication path for forwarding and receiving
packets to/from other nodes. The objective of this paper is to propose a key exchange and encryption
mechanism that aims to use the MAC address as an additional parameter as the message specific key[to
encrypt]and forward data among the nodes. The nodes are organized in spanning tree fashion, as they
avoid forming cycles and exchange of key occurs only with authenticated neighbors in ad hoc networks,
where nodes join or leave the network dynamically