SPINS: security protocols for sensor networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Perfectly-Secure Key Distribution for Dynamic Conferences
CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
Fine-grained network time synchronization using reference broadcasts
ACM SIGOPS Operating Systems Review - OSDI '02: Proceedings of the 5th symposium on Operating systems design and implementation
IEEE 802.15.4 Low-Rate Wireless Personal Area Networks: Enabling Wireless Sensor Networks
IEEE 802.15.4 Low-Rate Wireless Personal Area Networks: Enabling Wireless Sensor Networks
Timing-sync protocol for sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Revisiting random key pre-distribution schemes for wireless sensor networks
Proceedings of the 2nd ACM workshop on Security of ad hoc and sensor networks
The flooding time synchronization protocol
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
HEED: A Hybrid, Energy-Efficient, Distributed Clustering Approach for Ad Hoc Sensor Networks
IEEE Transactions on Mobile Computing
Secure time synchronization service for sensor networks
Proceedings of the 4th ACM workshop on Wireless security
Estimating clock uncertainty for efficient duty-cycling in sensor networks
Proceedings of the 3rd international conference on Embedded networked sensor systems
Time synchronization attacks in sensor networks
Proceedings of the 3rd ACM workshop on Security of ad hoc and sensor networks
A Deterministic Pairwise Key Pre-distribution Scheme for Mobile Sensor Networks
SECURECOMM '05 Proceedings of the First International Conference on Security and Privacy for Emerging Areas in Communications Networks
TinySeRSync: secure and resilient time synchronization in wireless sensor networks
Proceedings of the 13th ACM conference on Computer and communications security
The design space of wireless sensor networks
IEEE Wireless Communications
Secure and resilient clock synchronization in wireless sensor networks
IEEE Journal on Selected Areas in Communications
Timing-Based Mobile Sensor Localization in Wireless Sensor and Actor Networks
Mobile Networks and Applications
Location privacy and resilience in wireless sensor networks querying
Computer Communications
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Secure time synchronization is a key service for wireless sensor networks (WSN). The special nature of WSNs imposes challenging and intertwined requirements on secure time synchronization design. We show that secure time synchronization techniques proposed to date fail to fulfil the security, accuracy, precision and energy-cost required trade-off for WSNs. We propose a novel pairwise and clusterwise-based approach to securely synchronize nodes of a WSN. We develop a meshed network of cluster heads to securely transfer global time among cluster heads. Then, in turn, cluster heads transfer global time to the nodes of each cluster. The analysis in this paper shows that this approach exhibits very advanced security, accuracy, precision and low-energy trade-off. Moreover, this approach can equally be applied to star or peer-to-peer-based clustered WSNs.