A Pair-Wise Key Establishment Scheme for AD HOC Network

Ad hoc networks are a new wireless networking. However, these kinds of networks do not have anunderlying fixed infrastructure as well as tend to be vulnerable to a number of attacks due to dynamicnetwork topology and the lack of centralized network management functionality. In this paper, we haveproposed a new scheme that will allow two ad hoc nodes to establish a pair-wise shared key on the fly(dynamic) during any stage of the network operations based on cellular automata (CA) rules withoutrequiring the use of on-line key distribution centre. Our proposed scheme consists of a simple, but strongto provide a secure communication against node compromise due to pair-wise key establishment. Inaddition, the proposed scheme is computationally efficient because it only relies on simple symmetric keycryptography with high randomness, and meets desired levels of high reliability with low storagerequirements.