Combinatorics of experimental design
Combinatorics of experimental design
A key-management scheme for distributed sensor networks
Proceedings of the 9th ACM conference on Computer and communications security
Random Key Predistribution Schemes for Sensor Networks
SP '03 Proceedings of the 2003 IEEE Symposium on Security and Privacy
Establishing pairwise keys in distributed sensor networks
Proceedings of the 10th ACM conference on Computer and communications security
A pairwise key predistribution scheme for wireless sensor networks
ACM Transactions on Information and System Security (TISSEC)
Combinatorial design of key distribution mechanisms for wireless sensor networks
IEEE/ACM Transactions on Networking (TON)
Deterministic key predistribution schemes for distributed sensor networks
SAC'04 Proceedings of the 11th international conference on Selected Areas in Cryptography
A key pre-distribution scheme for wireless sensor networks: merging blocks in combinatorial design
ISC'05 Proceedings of the 8th international conference on Information Security
Key predistribution using partially balanced designs in wireless sensor networks
ISPA'07 Proceedings of the 5th international conference on Parallel and Distributed Processing and Applications
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We propose two deterministic key predistribution schemes in a wireless sensor network (WSN), in which sensor nodes are deployed randomly. Both the schemes are based on combinatorial designs, called partially balanced incomplete block designs (PBIBD). An important feature of our scheme is that every pair of nodes within communication range can communicate directly, making communication faster and efficient. The number of keys per node is of the order of $\sqrt N$, where $N$ is the number of nodes in the network. Our second design has the added advantage that we can introduce new nodes in the network keeping the key pool fixed. This makes the network scalable. We study the resiliency of the network under node compromise and show that our designs give better results than the existing ones.