Abstract
Many of the risks associated with securing wireless systems stem from challenges associated with operating in a mobile environment, such as the lack of a guaranteed infrastructure or the ease with which entities can eavesdrop on communications. Traditional network security mechanisms rely upon cryptographic keys to support confidentiality and authentication services. However, in a dynamic mobile wireless environment, with peer-to-peer associations being formed on-the-fly between mobile entities, it is difficult to ensure availability of a certificate authority or a key management center. Since such scenarios are likely to become more prevalent, it is necessary to have alternatives for establishing keys between wireless peers without resorting to a fixed infrastructure.
This work is based on an earlier work “Radio-telepathy: Extracting a Cryptographic Key from an UnauthentiatedWireless Channel,” in Proceedings of the 14th Annual International Conference on Mobile Computing and Networking,© ACM, 2008. http://doi.acm.org/10.1145/1409944.1409960.
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Mathur, S., Trappe, W., Mandayam, N., Ye, C., Reznik, A. (2009). Secret Key Extraction from Level Crossings over Unauthenticated Wireless Channels. In: Liu, R., Trappe, W. (eds) Securing Wireless Communications at the Physical Layer. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-1385-2_9
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