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Sensors 2010, 10(12), 11369-11389; doi:10.3390/s101211369
Article

Reliable Location-Based Services from Radio Navigation Systems

1,* , 2
, 1
 and 1
Received: 25 October 2010; in revised form: 16 November 2010 / Accepted: 9 December 2010 / Published: 13 December 2010
(This article belongs to the Section Physical Sensors)
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Abstract: Loran is a radio-based navigation system originally designed for naval applications. We show that Loran-C’s high-power and high repeatable accuracy are fantastic for security applications. First, we show how to derive a precise location tag—with a sensitivity of about 20 meters—that is difficult to project to an exact location. A device can use our location tag to block or allow certain actions, without knowing its precise location. To ensure that our tag is reproducible we make use of fuzzy extractors, a mechanism originally designed for biometric authentication. We build a fuzzy extractor specifically designed for radio-type errors and give experimental evidence to show its effectiveness. Second, we show that our location tag is difficult to predict from a distance. For example, an observer cannot predict the location tag inside a guarded data center from a few hundreds of meters away. As an application, consider a location-aware disk drive that will only work inside the data center. An attacker who steals the device and is capable of spoofing Loran-C signals, still cannot make the device work since he does not know what location tag to spoof. We provide experimental data supporting our unpredictability claim.
Keywords: Loran-C; location-based security; location tag Loran-C; location-based security; location tag
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Qiu, D.; Boneh, D.; Lo, S.; Enge, P. Reliable Location-Based Services from Radio Navigation Systems. Sensors 2010, 10, 11369-11389.

AMA Style

Qiu D, Boneh D, Lo S, Enge P. Reliable Location-Based Services from Radio Navigation Systems. Sensors. 2010; 10(12):11369-11389.

Chicago/Turabian Style

Qiu, Di; Boneh, Dan; Lo, Sherman; Enge, Per. 2010. "Reliable Location-Based Services from Radio Navigation Systems." Sensors 10, no. 12: 11369-11389.


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