BibTeX:

@article{IJIRSTV1I7090,
     title={Detection of Grouped Malicious Nodes to Avoid Black Hole Attack in Mobile Ad-hoc Network},
     author={T.Nandhini, V.Sandhya and R.Kundhavai},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={1},
     number={7},
     pages={217--223},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV1I7090.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

A Mobile Ad-Hoc Network is a collection of mobile nodes that are dynamically and arbitrarily located in such a manner that the interconnections between nodes are capable of changing on continual basis. Due to security vulnerabilities of the routing protocols, wireless ad-hoc networks are unprotected to attacks of the malicious nodes. One of these attacks is the Black Hole Attack. A black hole attack is a severe attack that can be easily employed against routing in mobile ad hoc networks. A black hole is a malicious node that falsely replies for any route requests without having active route to specified destination and drops all the receiving packets. If these malicious nodes work together as a group then the damage will be very serious. This type of attack is called cooperative black hole attack. In this paper, we give an algorithmic approach to focus on analyzing and improving the security of AODV, which is one of the popular routing protocols for MANET. Our aim is on ensuring the security against Black hole attack. The proposed solution is capable of detecting & removing Black hole node(s) in the MANET at the beginning and a solution to discover a safe route avoiding cooperative black hole attack.

MANET, Black Hole Attack, Routing Protocols, Networks.