Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
In situ key establishment in large-scale sensor networks
EURASIP Journal on Wireless Communications and Networking - Special issue on wireless network security
An efficient post-deployment key establishment scheme for heterogeneous sensor networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Dynamic, non-interactive key management for the bundle protocol
Proceedings of the 5th ACM workshop on Challenged networks
Distributed KDC-based random pairwise key establishment in wireless sensor networks
EURASIP Journal on Wireless Communications and Networking - Special issue on design, implementation, and evaluation of wireless sensor network systems
LBP: a secure and efficient network bootstrapping protocol for 6LoWPAN
Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication
Data security in unattended wireless sensor networks with mobile sinks
Wireless Communications & Mobile Computing
Proceedings of the second ACM MobiHoc workshop on Airborne networks and communications
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Key pre-distribution has been claimed to be the only viable approach for establishing shared keys between neighboring sensors after deployment for a typical sensor network. However, none of the proposed key pre-distribution schemes simultaneously achieves good performance in terms of scalability in network size, key-sharing probability between neighboring sensors, memory overhead for keying information storage, and resilience against node capture attacks. In this paper, we propose SBK, an in-situ self-configuring framework to bootstrap keys in large-scale sensor networks. SBK is fundamentally different compared to all key pre-distribution schemes. It requires no keying information pre-deployment. In SBK, sensors differentiate their roles as either service nodes or worker nodes after deployment. Service sensors construct key spaces, and distribute keying information in order for worker sensors to bootstrap pairwise keys. An improved scheme, iSBK, is also proposed to speed up the bootstrapping procedure. We conduct both theoretical analysis and simulation study to evaluate the performances of SBK and iSBK. To the best of our knowledge, SBK and iSBK are the only key establishment protocols that simultaneously achieve good performance in scalability, key-sharing probability, storage overhead, and resilience against node capture attacks.