Confidentiality and Honesty-Conserving Range Requests in Instrumental Networks

We consider a sensor network that is not fullytrusted and ask the question how we preserve privacy for the collected data and how we verify the data reply from the network. Master nodes collect datafrom sensor nodes and answer the queries from the network owner. It offers data confidentiality by preventing master nodes from reading hosted data and also enables efficient range-query processing. Previous work on data-centricrouting has shown it to be energy-efficient data dissemination method for sensor nets. To improve performance, we propose an optimization technique using Bloom filters to reduce the communication cost between sensorsand storage nodes.