Providing an Optimized and Trusted Route Discovery in Wireless Networks through Secure TORA

Abstract

            Now a day’s security is a one of the challenging issues in wireless infrastructure less networks because in ad-hoc networks nodes moving from one place to another place because of this the topology of the network changes frequently. The changes in infrastructure may cause miscommunication in a network due to this may cause route modification attacks. On other side, packet dropping can be occur by data communication attacks, which will not affect the routing protocol. Temporally ordered routing protocol is one of the MANET routing protocol which is frequently affected by above-mentioned attacks. To avoid the problems some features are add to this basic TORA routing protocol for secure routing. The extensions include authentication means the identification of node is done and integrity means the message modification is not allowed. These features are provided by using one cryptographic secrete key algorithm hashed message authentication code, which gives the information about the sender, receiver and intermediate nodes for authentication and fast data validation and this protection Obtained acceptable results by using network simulator tool (NS2) on considered QOS metrics such as delay analysis, packet deliver ratio, throughput and packet drop. An average of packet drop and delay is decreases after applying the secured TORA protocol and it increases the packet delivery ratio and throughput.