The availability and use of cheaper and smaller sensors has brought an evolution in the field of Wireless Sensor Networks. The changes occurring in the environment can be observed, recorded through the large-scale deployment of sensor nodes that can build-up the much-required information system. Also, they are able to monitor and congregate data about the living organisms therein. In near future, millions more devices are expected to be connected. We focus upon the security services required by WSNs that are most challenging as compared to other networks. First, we introduce the commercially used motes with the comparison of technical and implementation related issues. Second, we analysed the variants of existing one-pass key management protocols for the resource constrained devices. Our aim is to provide a new direction to WSN Security through a restricted key distribution mechanism.
Protocol based on compressed sensing for high-speed authentication and cryptographic key distribution over a multiparty optical network
