The Design of Efficient Internetwork Authentication for Ubiquitous Wireless Communications
The Design of Efficient Internetwork Authentication for Ubiquitous Wireless Communications
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Date
2006-01-13T21:31:06Z
Authors
Shin, Minho
Ma, Justin
Arbaugh, William A.
Advisor
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DRUM DOI
Abstract
A variety of wireless technologies have been
standardized and commercialized, but no single solution is
considered the best to satisfy all communication needs due
to different coverage and bandwidth limitations. Therefore,
internetworking between heterogeneous wireless networks
is extremely important for ubiquitous and high performance
wireless communications. The security problem is
one of the major challenges in internetworking. To date,
most research on internetwork authentication has focused
on centralized authentication approaches, where the home
network participates in each authentication process. For
high latency between the home and visiting networks, such
approaches tend to be inefficient. In this paper, we describe
chained authentication, which requires collaboration between
adjacent networks without involvement of the home
network. After categorizing chained protocols, we propose
a novel design of chained authentication methods under
3G-WLAN internetworking. The experiments show that
proactive context transfer and ticket forwarding reduce the
3G authentication latency to 36.8% and WLAN EAP-TLS
latency to 23.1% when RTT between visiting and home
networks is 200 ms.