Framework for Pairwise key establishment in wireless sensor networks

This paper deals primarily on analysis of establishing Pairwise keys on Distributed Sensor Networks [1]. Pairwise key establishment is a fundamental security service in sensor networks; it enables sensor nodes to communicate securely with each other using cryptographic techniques. In order to facilitate the study of new key distribution techniques, we develop a general framework for pairwise key establishment based on the polynomial based key predistribution and then develop Grid based Key distribution which has number of attractive properties. First, it guarantees that any two sensors can establish a pairwise key when there are no compromised sensors, provided that the sensors can communicate with each other. Second, this scheme is resilient to node compromise.