Providing Holistic Security in Sensor Networks

We propose a new paradigm for the secure operation of wireless sensor networks. The network model assumed in this paper consists of tiny, energy -constrained, commodity sensors massively deployed alongside with one or more sink nodes that provide the interface to the outside world. The sensors in the network are initially anonymous and unaware of their location. Our main contribution is a scalable and energy -efficient solution where security is based upon using parameterized frequency hopping and cryptographic keys in a unified framework to provide differential security services for wireless sensor networks.