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Jamming-resistant Key Establishment using Uncoordinated Frequency Hopping (CROSBI ID 532656)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Strasser, Mario ; Popper, Christina ; Čapkun, Srđan ; Čagalj, Mario Jamming-resistant Key Establishment using Uncoordinated Frequency Hopping // Proceedings of the IEEE Symposium on Security and Privacy (IEEE S&P 2008). 2008

Podaci o odgovornosti

Strasser, Mario ; Popper, Christina ; Čapkun, Srđan ; Čagalj, Mario

engleski

Jamming-resistant Key Establishment using Uncoordinated Frequency Hopping

Motivated by the ubiquity of wireless devices, we consider the following problem: how can two devices that do not share any secrets establish a shared secret key over a wireless radio channel in the presence of a communication jammer? An inherent challenge in solving this problem is that known anti-jamming techniques (e.g., frequency hopping or direct-sequence spread spectrum) which should support device communication during the key establishment require that the devices share a secret spreading key (or code) prior to the start of their communication. This requirement creates a circular dependency between anti-jamming spread-spectrum communication and key establishment. To the best of our knowledge, this dependency has so far not been addressed in this setting. In this work, we propose an Uncoordinated Frequency Hopping (UFH) scheme that breaks this circular dependency, and enables key establishment in the presence of a communication jammer ; the key resulting from the UFH key establishment can then be used to support later coordinated frequency hopping communication. We perform a detailed analysis of our UFH scheme and show its feasibility, both in terms of execution time and resource requirements. Our analysis shows that, although our UFH scheme has lower communication throughput and incurs higher storage and processing costs, it achieves the same level of anti-jamming protection as (coordinated) frequency hopping (which, however, unlike UFH, cannot be used in scenarios where devices do not share secret spreading keys).

wireless security; jamming-resistant key establishment; uncoordinated frequency hopping

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Podaci o prilogu

2008.

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objavljeno

Podaci o matičnoj publikaciji

Proceedings of the IEEE Symposium on Security and Privacy (IEEE S&P 2008)

Podaci o skupu

IEEE Symposium on Security and Privacy

predavanje

18.05.2008-21.05.2008

Oakland (CA), Sjedinjene Američke Države

Povezanost rada

Računarstvo

Poveznice