EUROCRYPT '93 Workshop on the theory and application of cryptographic techniques on Advances in cryptology
How to prove where you are: tracking the location of customer equipment
CCS '98 Proceedings of the 5th ACM conference on Computer and communications security
SECTOR: secure tracking of node encounters in multi-hop wireless networks
Proceedings of the 1st ACM workshop on Security of ad hoc and sensor networks
The security of vehicular ad hoc networks
Proceedings of the 3rd ACM workshop on Security of ad hoc and sensor networks
An RFID Distance Bounding Protocol
SECURECOMM '05 Proceedings of the First International Conference on Security and Privacy for Emerging Areas in Communications Networks
Detecting relay attacks with timing-based protocols
ASIACCS '07 Proceedings of the 2nd ACM symposium on Information, computer and communications security
Secure positioning in wireless networks
IEEE Journal on Selected Areas in Communications
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Wireless networks are becoming more and more commonplace, with ubiquitous computing flourishing in this ever expanding environment. As this occurs, the demand for a reliable method of locating devices has also increased dramatically. Locating devices with no a prioi knowledge is a very large problem, requiring much special equipment. Instead, we focus on the issue of location verification, a smaller aspect of the location issue. Distance bounding is a well respected technique used in this area, however it relies on precise calculations to locate a device. We propose a method of locating a device which does not rely on these calculations. Instead, we employ a binary "yes/no" visibility metric, where neighbouring devices indicate whether they can "see" or communicate directly with the claiming device. We confirm the existence of a direct link through excluding the possibility of a proxied connection being employed. The intersection of the ranges of these devices can then be used to extract a location area, without relying on calculating exact distances through precise timings.