Paper Info
Title
Attack-Tolerant Time-Synchronization in Wireless Sensor Networks
Abstract
Achieving secure time-synchronization in wireless sensor networks (WSNs) is a challenging, but very important problem that has not yet been addressed effectively. This paper proposes an attack-tolerant time-synchronization protocol (ATSP) in which sensor nodes cooperate to safeguard the time- synchronization service against malicious attacks. ATSP exploits the high temporal correlation existing among adjacent nodes in a WSN to achieve (1) adaptive management of the profile of each sensor's normal behavior, (2) distributed, cooperative detection of falsified clock values advertised by attackers or compromised nodes, and (3) significant improvement of synchronization accuracy and stability by effectively compensating the clock drifts with the calibrated clock. To reduce the risk of losing time-synchronization due to attacks on the reference node, ATSP utilizes distributed, mutual synchronization and confines the impact of attacks to a local area (where attacks took place). Furthermore, by maintaining an accurate profile of sensors' normal synchronization behaviors, ATSP detects various critical attacks while incurring only reasonable communication and computation overheads, making ATSP attack-tolerant and ideal for resource-constrained WSNs.
Year
DOI
Venue
2008
10.1109/INFOCOM.2008.17
INFOCOM
Keywords
Field
DocType
protocols,wireless sensor network,temporal correlation,wireless sensor networks,telecommunication security,attack-tolerant time-synchronization protocol,synchronisation,synchronization,clock drift,computer networks,security,broadcasting
Broadcasting,Synchronization,Military computing,Computer science,Time synchronization,Computer network,Peer to peer computing,Exploit,Wireless sensor network,Distributed computing,Computation
Conference
ISSN
ISBN
Citations 
0743-166X
978-1-4244-2025-4
14
PageRank 
References 
Authors
0.68
23
3
Name
Order
Citations
PageRank
Xin Hu144530.43
Tae-joon Park234937.39
Kang G. Shin3140551487.46