SECURITY PRESERVING RANGE QUERIES IN SENSOR NETWORKS
|Madhuri Bijjal1, Vidya Kulkarni2, Vibha Amboji3
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Security is critical aspect in two-tiered wireless sensor network and it is twofold in nature i.e. preserving privacy and integrity. To preserve the privacy, intermediate tier i.e. storage node has to process encoded queries over encoded data without knowing the actual values of sensor collected data. To do this, we use Prefix Membership function. To preserve the integrity of query result, we have considered two different techniques Merkle Hash Tree and Neighbor Chaining and compared the performance of these two techniques.