Efficient and Robust Secure Aggregation for Sensor Networks

Abstract-- Wireless Sensor Networks (WSNs) rely on innetwork aggregation for efficiency, however, this comes at a price: A single adversary can severely influence the outcome by contributing an arbitrary partial aggregate value. Secure in-network aggregation can detect such manipulation [2]. But as long as such faults persist, no aggregation result can be obtained. In contrast, the collection of individual sensor node values is robust and solves the problem of availability, yet in an inefficient way. Our work seeks to bridge this gap in secure data collection: We propose a system that enhances availability with an efficiency close to that of in-network aggregation. To achieve this, our scheme relies on costly operations to localize and exclude nodes that manipulate the aggregation, but only when a failure is detected. The detection of aggregation disruptions and the removal of faulty nodes provides robustness. At the same time, after removing faulty nodes, the WSN can enjoy low cost (s...

• Type: Journal
• Year: 2008
• Where: CORR
• Authors: Parisa Haghani, Panagiotis Papadimitratos, Marcin Poturalski, Karl Aberer, Jean-Pierre Hubaux
• Keywords: CORR 2008, Education, In-network Aggregation, Innetwork Aggregation, Secure In-network Aggregation