Wireless sensor networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
JAM: A Jammed-Area Mapping Service for Sensor Networks
RTSS '03 Proceedings of the 24th IEEE International Real-Time Systems Symposium
Almost optimal hash sequence traversal
FC'02 Proceedings of the 6th international conference on Financial cryptography
Fractal Merkle tree representation and traversal
CT-RSA'03 Proceedings of the 2003 RSA conference on The cryptographers' track
Key inheritance-based false data filtering scheme in wireless sensor networks
ICDCIT'06 Proceedings of the Third international conference on Distributed Computing and Internet Technology
Statistical en-route filtering of injected false data in sensor networks
IEEE Journal on Selected Areas in Communications
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The sensor reports from a wireless sensor network are often used extensively in the decision making process in many systems and applications. Hence, classifying real and false sensor reports is necessary to avoid unwanted results. In this paper, we propose a scheme for securing the sensor reports in a wireless sensor network. We use one-way hash chain and pre-stored shared secret keys to provide data transmission security for the reports that travel from any source node to the base station. To introduce data freshness, our scheme includes an optional key refreshment mechanism which could be applied depending upon the requirement or the application at hand. We present an analysis along with the detailed description of our scheme.