Asian Journal of Engineering and Technology Innovation

Detecting Truthfulness of Packet Dropping Attacks in WANETs

Sanma S Shetty

1Reva Institute of Technology and Management, Rukmini Knowledge Park, Kattigenahalli, Yelahanka, Near Border Security Bustop, Bengaluru, Karnataka-560064, India

Abstract

In multi-hop wireless ad hoc network packet loss can be caused mainly because of two different reasons. Link error and malicious packet dropping are two different reasons because of which packet losses can take place. Packet loss can take place because of link errors only, or by the combined effect of link errors and malicious drop. The accurate cause for the packet loss should be discovered. Here we are giving the consideration to insider attack case. In the insider attack case, i.e. the malicious packet dropping, malicious nodes will drop a small amount of packets which will affect the network performance. Based on traditional algorithms, it detects the packet loss rate does not attain adequate detection accuracy. To improve the detection accuracy, the correlations between lost packets is identified by using the bitmap obtained from individual nodes. By doing this exact reason for packet drop can be determined. The information reported by nodes should be truthful so, an public auditing architecture called Homomorphic linear authenticator (HLA) is developed. This architecture is privacy preserving and causes low communication and storage overheads. The auditor will collect the information reported by individual nodes and will determine the reason for packet loss by determining correlation between lost packets. Once the malicious node is identified the malicious node is eliminated from the route.

Keywords:

-