Secured transmission under black hole attack in manets

Abstract

Mobile AdHoc NETwork is a collection of wireless mobile nodes dynamically forming a temporary network without the use of any pre existing network infrastructure or centralized administration Every node in MANET not only serves as a single terminal but also acts as a router to establish a route When a source node intends to transfer data to a destination node packets are transferred through the intermediate nodes An adhoc routing protocol is a standard that controls how nodes decide in which way to route packets between computing devices in a mobile AdHoc network Due to various factors including lack of infrastructure absence of already established trust relationship between the different nodes and dynamic topology the MANET routing protocols are vulnerable to various attacks Compared to traditional wired networks such attacks are performed easily in mobile networks due to the unsupervised access to the wireless medium The malicious manipulation of some routing messages results in the dissemination of incorrect routing information which can eventually lead to network malfunction One of these attacks in the outstanding wireless routing protocol Ad hoc On demand Distance Vector Routing protocol is the Black Hole Attack against network integrity On account of this attack the data packets do not reach the destination node thus data loss occurs newline