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
Robust key establishment in sensor networks
ACM SIGMOD Record
Security for fixed sensor networks
ACM-SE 42 Proceedings of the 42nd annual Southeast regional conference
Random key-assignment for secure Wireless Sensor Networks
Proceedings of the 1st ACM workshop on Security of ad hoc and sensor networks
Location-based pairwise key establishments for static sensor networks
Proceedings of the 1st ACM workshop on Security of ad hoc and sensor networks
Security in wireless sensor networks
Communications of the ACM - Wireless sensor networks
Reducing radio energy consumption of key management protocols for wireless sensor networks
Proceedings of the 2004 international symposium on Low power electronics and design
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Secure communication between sensor nodes is required in most of sensor networks, especially those deployed in a hostile environment. Due to the limited energy and computational capability on each sensor node, a public key cryptosystem is not a viable option for a wireless sensor network. Hence, the idea of key pre-distribution has been widely adopted in most of the session key establishment protocols proposed so far. In this paper, 1) several typical session key establishment protocols are analyzed and compared in terms of common criteria, 2) the requirements for improving upon the existing protocols are derived, and 3) two advanced protocols which take a two-step hierarchical approach to satisfying the requirements are proposed. Through the performance analysis, it has been shown that the proposed protocols improve the connectivity of a sensor network, uniqueness of session keys and security over the existing protocols.