Date Added: Jul 2012
A network always suffers from some active or passive attacks. These attacks results the data loss or the information reveal. In case of Dynamic wireless network there are more chances of such kind of attacks. One of such type of attack is Wormhole Attack. It is a tunnel based attack in which a pair of nodes forms a tunnel with false identification. The wormhole attack causes the delay transfer and information steal over the network. In this paper, the authors have presented the authentication approach to avoid the wormhole attack over the network. In this system they have provided 2 level of authentication using public key cryptography, one level is between node to base station and other between two mobile stations.