An optimal class of symmetric key generation systems
Proc. of the EUROCRYPT 84 workshop on Advances in cryptology: theory and application of cryptographic techniques
SPINS: security protocols for sensor networks
Wireless Networks
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
A pairwise key pre-distribution scheme for wireless sensor networks
Proceedings of the 10th ACM conference on Computer and communications security
Establishing pairwise keys in distributed sensor networks
Proceedings of the 10th ACM conference on Computer and communications security
LEAP: efficient security mechanisms for large-scale distributed sensor networks
Proceedings of the 10th ACM conference on Computer and communications security
Location-based pairwise key establishments for static sensor networks
Proceedings of the 1st ACM workshop on Security of ad hoc and sensor networks
Location-aware key management scheme for wireless sensor networks
Proceedings of the 2nd ACM workshop on Security of ad hoc and sensor networks
TinyPK: securing sensor networks with public key technology
Proceedings of the 2nd ACM workshop on Security of ad hoc and sensor networks
Efficient key establishment for group-based wireless sensor deployments
Proceedings of the 4th ACM workshop on Wireless security
Group-based key pre-distribution in wireless sensor networks
Proceedings of the 4th ACM workshop on Wireless security
Tamper resistance: a cautionary note
WOEC'96 Proceedings of the 2nd conference on Proceedings of the Second USENIX Workshop on Electronic Commerce - Volume 2
Journal of Intelligent Manufacturing
Public key cryptography in sensor networks—revisited
ESAS'04 Proceedings of the First European conference on Security in Ad-hoc and Sensor Networks
Designing secure sensor networks
IEEE Wireless Communications
VoCS'08 Proceedings of the 2008 international conference on Visions of Computer Science: BCS International Academic Conference
IEEE Communications Magazine
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We propose a probabilistic key predistribution scheme for wireless sensor networks, where keying materials are distributed to sensor nodes for secure communication. We use a two-tier approach in which there are two types of nodes: regular nodes and agent nodes. Agent nodes are more capable than regular nodes. Our node deployment model is zone-based such that the nodes that may end up with closer positions on ground are grouped together. The keying material of nodes that belong to different zones is non-overlapping. However, it is still possible for nodes that belong to different zones to communicate with each other via agent nodes when needed. We give a comparative analysis of our scheme through simulations and show that our scheme provides good connectivity figures at reasonable communication cost by using minimal flooding in key distribution. Moreover, we show that our scheme is scalable such that no extra overhead in incurred in case of increased number of nodes and sensor field size. Most importantly, simulation results show that our scheme is highly resilient to node captures.