Secure Hop-by-Hop Aggregation of End-to-End Concealed Data in Wireless Sensor Networks

Details Secure Hop-by-Hop Aggregation of End-to-End Concealed Data in Wireless Sensor Networks Secure Hop-by-Hop Aggregation of End-to-End Concealed Data in Wireless Sensor Networks

2008-03-25

arxiv.org/abs/0803.3448v1

Proc. 2nd IEEE MCN'08 workshop in conj. with Infocom'08, Phoenix, AZ, 2008

Computer Science

Cryptography and Security

Scientific paper

In-network data aggregation is an essential technique in mission critical wireless sensor networks (WSNs) for achieving effective transmission and hence better power conservation. Common security protocols for aggregated WSNs are either hop-by-hop or end-to-end, each of which has its own encryption schemes considering different security primitives. End-to-end encrypted data aggregation protocols introduce maximum data secrecy with in-efficient data aggregation and more vulnerability to active attacks, while hop-by-hop data aggregation protocols introduce maximum data integrity with efficient data aggregation and more vulnerability to passive attacks. In this paper, we propose a secure aggregation protocol for aggregated WSNs deployed in hostile environments in which dual attack modes are present. Our proposed protocol is a blend of flexible data aggregation as in hop-by-hop protocols and optimal data confidentiality as in end-to-end protocols. Our protocol introduces an efficient O(1) heuristic for checking data integrity along with cost-effective heuristic-based divide and conquer attestation process which is $O(\ln{n})$ in average -O(n) in the worst scenario- for further verification of aggregated results.

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