Bogus Data Filtering in Sensor Networks

摘要

Recently, Zhang et al. proposed a location-based threshold-endorsement scheme (LTE) to thwart bogus data injection attacks. This scheme exhibits much greater filtering power than earlier symmetric schemes and results in enhanced energy savings. In this paper, we show that LTE has a significant vulnerability. We also propose an improved scheme that mitigates this weakness and thereby achieves the original claims of Zhang et al. without lessening LTE's remarkable filtering power.