@INPROCEEDINGS {qun_infocom08_2,
	author = {Bo Sheng and Qun Li},
	booktitle = {{IEEE} Infocom},
	PAGES = {--},
	TITLE = {Verifiable Privacy-Preserving Range Query in Sensor Networks},
	Address ={Phoenix, AZ},
	Month={April.},
	YEAR = {2008}
	}

Abstract 

We consider a sensor network that is not fully
trusted and ask the question how we preserve privacy for the
collected data and how we verify the data reply from the network.
We explore the problem in the context of a network augmented
with storage nodes and target at range query. We use bucketing
scheme to mix the data for a range, use message encryption
for data integrity, and employ encoding numbers to prevent the
storage nodes from dropping data.