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2002
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Talking to Strangers: Authentication in Ad-Hoc Wireless Networks

12 years 29 days ago
Talking to Strangers: Authentication in Ad-Hoc Wireless Networks
In this paper we address the problem of secure communication and authentication in ad-hoc wireless networks. This is a difficult problem, as it involves bootstrapping trust between strangers. We present a user-friendly solution, which provides secure authentication using almost any established public-key-based key exchange protocol, as well as inexpensive hash-based alternatives. In our approach, devices exchange a limited amount of public information over a privileged side channel, which will then allow them to complete an authenticated key exchange protocol over the wireless link. Our solution does not require a public key infrastructure, is secure against passive attacks on the privileged side channel and all attacks on the wireless link, and directly captures users’ intuitions that they want to talk to a particular previously unknown device in their physical proximity. We have implemented our system in Java for a variety of different devices, communication media, and key exchan...
Dirk Balfanz, Diana K. Smetters, Paul Stewart, H.
Added 15 Jul 2010
Updated 15 Jul 2010
Type Conference
Year 2002
Where NDSS
Authors Dirk Balfanz, Diana K. Smetters, Paul Stewart, H. Chi Wong
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