A Safe And Energy-saving Routing Protocol Based On Ad Hoc Networks

Wireless Ad hoc network is a temporary autonomous system formed by a group of mobile nodes which have wireless transceiver and routing function.Because of no need of network infrastructure,this kind of network will play a key role in many environments , such as military communication,disaster rescue , and temporary communication and so on.However this network is different from others.Because of the lackness of fixed infrastructure,frequent change of network topology and completely open wireless channel.it is hard for nodes to detect malicious behavior.Wireless Ad hoc network is vulnerable for various types of routing attacks,such as modification,impersonation and fabrication,etc.How to ensure the routing security has become a hot issue.Nowadays Ad hoc networks routing protocols available just pay attention to security,using public key encryption ,like RSA and so on.That effects abundant calculation,and cause the energy of nodes expended rapidly,or the protocols just make use of symmetric encipherment algorithms,like using Hash link to actualize integrality authentication,thus security is victimized a lot.This article brings forward a new nodes joining protocol , a safe and energy-saving routing algorithm both basing on Elliptic Curve Encryption Algorithm and Hash function.That not only brings about maximumly security but also takes into account limited energy of nodes ,making sure safe communications for longer time as soon as possible.