Detection and Prevention against Wormhole Attack in AODV for Mobile Ad-Hoc Networks
Priyanka Sharma, H. P. Sinha, Abhay Bindal · International Journal of Computer Applications · 2014
Security is one of the major issues in Mobile Ad-hoc Network (MANET) because of its inherent liabilities.Its infrastructureless network with dynamic topology pose a number of challenges to security design and makes it vulnerable for different types of security attacks.In wormhole attack a pair of colluding nodes makes a tunnel using a high speed network.These colluding nodes create an illusion that the two remote nodes of a MANET are directly connected through nodes that appear to be neighbours, but are actually distant from one another.In this, a secret key is used for encryption and decryption of hello packets.Because of this, the only authentic node will remain in the network, non-authentic nodes (wormhole node) will be discarded.As a result, communication can take place only between the trusted nodes.So malicious node cannot enter into system and communication is secured.