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Validating and Securing Spontaneous Associations between Wireless Devices
Kindberg, Tim; Zhang, Kan
HPL-2002-256
Keyword(s): secure association
Abstract: One of the sought-after characteristics of mobile and ubiquitous computing environments is for devices to become spontaneously associated and interoperate over wireless networks. However, unlike the cable that connects two devices in a wired association, a wireless network does not provide a physical indication of which device is on the other end of the association. Further, the messages sent over a wireless network are readily accessible to other devices on the same network. Hence, a spontaneous wireless association is subject to various spoofing and replay attacks. We introduce protocols to thwart these attacks by physically validating the two devices in a wireless association and, in so doing, exchanging a shared session key between them for subsequent secure communication.
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