Securing Nodes in MANETs Using Node Based Key Management Scheme

A mobile ad hoc network (MANET) is a kind of wireless communication infrastructure that does not have base stations or routers. Each node acts as a router and is responsible for dynamically discovering other nodes it can directly communicate with. However, when a message without encryption is sent out through a general tunnel, it may be maliciously attacked. In MANETs, existing research efforts in key management can only handle very limited number of nodes and are vulnerable to active attacks. In this paper, node based key management scheme is being used for securing nodes because nodes are the only medium to transmit packets to other mobile nodes. RREQ and RREP values are followed with node identification number for generating key. This paper focuses on preventing the nodes misbehavior.