Sec.AODV for MANETs using MD5 with Cryptography
Journal Title: International Journal of Engineering, Science and Mathematics - Year 2011, Vol 1, Issue 6
Abstract
Mobile Ad hoc Networks (MANETs) characteristics present major vulnerabilities in security. The threats which thought-out in MANETs are due to maliciousness that intentionally disrupts the network by using variety of attacks and due to insecure routing protocols (e.g. AODV), which were developed without considering security in mind. Due to lack of the infrastructure, open peer-to-peer architecture, shared wireless medium, limited resource constraints and highly dynamic topology, MANETs (Mobile Ad-hoc Networks) are frequently established in insecure environments, which make them more vulnerable to attacks. These attacks are initiated by sharing malicious nodes against different services of network. Ad-hoc On-Demand Distance Vector (AODV) is one such widely used routing protocol that is at present undergo extensive research and development. AODV is based on distance vector routing, but here the updates are shared not on a periodic basis but on an as per demand basis. The control packets contain a hopcount and sequence number field which recognizes the freshness of routing. These fields are editable, so it creates a possible susceptibility that is frequently abused by malicious nodes to advertise false better routes. As well as, transmission of routing updates in form of clear text also reveals crucial information about the network topology, which is again a probable security danger. In this paper we are presenting a novel and practical security mechanism for securing the AODV routing protocol that protects against a number of attacks carried out in MANETs. We will present message digest with secret key mechanism to secure AODV messages which is very effective and less power consuming security solution for MANETs.
Authors and Affiliations
Mr. Suketu D. Nayak and Mr. Ravindra K. Gupta
Keywords
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