Durresi, ArjanDurresi, MimozaBarolli, Leonard2021-01-202021-01-202008-04-03Arjan Durresi, Mimoza Durresi, Leonard Barolli, "Secure Authentication in Heterogeneous Wireless Networks", Mobile Information Systems, vol. 4, Article ID 135848, 12 pages, 2008. https://doi.org/10.1155/2008/135848https://hdl.handle.net/1805/24892The 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.en-USAttribution 4.0 InternationalIP technologies3G ServicesIntegrated NetworksSecure Authentication in Heterogeneous Wireless NetworksArticle