Secure authentication in heterogeneous wireless networks

Authors:
Arjan Durresi;Mimoza Durresi;Leonard Barolli
Affiliations:
(Correspd. Tel.: +1 317 274 8942/ E-mail: durresi@cs.iupui.edu) Indiana University Purdue University, 723 W. Michigan St. SL 280M, Indianapolis, IN 46202, USA;Indiana University Purdue University, 723 W. Michigan St. SL 280M, Indianapolis, IN 46202, USA;Fukuoka Institute of Technology, 3-30-1 Wajiro-Higashi, Higashi-ku, Fukuoka 811-0295, Japan
Venue:
Mobile Information Systems - Mobile Systems and Applications
Year:
2008

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Abstract

The convergence of cellular and IP technologies has pushed the integration of 3G and WLAN networks to the forefront. Gaining secure access to 3G services from 802.11 WLANs is a primary challenge for this new integrated wireless technology. Successful execution of 3G security algorithms can be limited to a specified area by encrypting a user's authentication challenge with spatial data defining his visited WLAN. With limited capacity to determine a user's location only to within a current cell and restrictions on accessing users' location due to privacy, 3G operators must rely on spatial data sent from visited WLANs to implement spatial authentication control. A potential risk is presented to 3G operators since no prior relationship or trust may exist with a WLAN owner. Algorithms to quantify the trust between all parties of 3G-WLAN integrated networks are presented to further secure user authentication. Ad-hoc serving networks and the trust relationships established between mobile users are explored to define stronger algorithms for 3G - WLAN user authentication.