• CH. Anusha
• K. Chinnaiah

Now-a-days security is a major challenging problem in mobile ad-hoc networks because the nodes in mobile ad-hoc networks are moving from one place to another due to this the structure of the network changes frequently. The topology changes may cause "routing modification attack" problem that can easily be exploited against the MANETs. The main goal of routing attacks is to disrupt normal functioning of network by advertising false routing updates. On the other hand data communication attacks include modification or dropping of data packet that does not disrupt routing protocol. In this thesis work, this could be achieved by adding some extensions for secure routing. These extensions include integrity which means the message modification is not allowed and authentication which means the node validation (identification) is done. This protection is provided by a hashed message authentication code function which provides fast message verification and information about sender as well as intermediate node authentication. We obtained acceptable results by using network simulator tool (NS2) depending on the performance of metrics such as packet deliver ratio, packet drop, delay analysis and throughput. The average of delay and packet drop is decreased when we used a secured protocol and also it increases the packet delivery ratio and throughput.

mobile ad-hoc networks, routing attacks, authentication, integrity, network simulator tool

"An Efficient Secure Routing in Mobile Ad-hoc Networks Using HMAC", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 10, page no.359-367, October-2018, Available :http://www.jetir.org/papers/JETIR1810954.pdf

"An Efficient Secure Routing in Mobile Ad-hoc Networks Using HMAC", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 10, page no. pp359-367, October-2018, Available at : http://www.jetir.org/papers/JETIR1810954.pdf