An efficient data aggregation scheme for protecting the integrity of sensitive data in wireless sensor networks

Abstract

Since wireless sensor networks (WSNs) are resources-constrained, it is very essential to gather data efficiently. For this, data aggregation schemes are studied to minimize transmission cost in terms of the number of data packets. On the other hand, many applications want to preserve data privacy and integrity from the interception (or eavesdropping) of the data by an adversary. However, the existing schemes suffer from high communication cost. To resolve the problems, in this paper, we propose an efficient data aggregation scheme for protecting the integrity of sensitive data in WSNs. Our scheme makes use of the additive property of complex numbers to achieve sensitive data aggregation with protecting data integrity. With simulation results, we show that our scheme is much more efficient in terms of both communication overheads and integrity checking than the existing schemes for protecting integrity and privacy preserving data aggregation in WSNs. © Springer-Verlag Berlin Heidelberg 2014.