User authentication and undeniable billing support for agent-based roaming service in WLAN/cellular integrated mobile networks

Minghui Shi, Xuemin (Sherman) Shen, Jon W. Mark, Dongmei Zhao, Yixin Jiang
2008 Computer Networks  
In this paper, a framework of authentication and undeniable billing support for an agentbased roaming service in WLAN/cellular networks interworking networks is proposed. This framework circumvents the requirement of peer-to-peer roaming agreements to provide seamless roaming service between WLAN hotspots and cellular networks operated by independent wireless network service providers. Within the framework, an adaptive authentication and an event-tracking scheme have been developed, which allow
more » ... the application of undeniable billing service to cellular network even when it still uses a traditional authentication scheme. The proposed modified dual directional hash chain (MDDHC) based billing support mechanism features mutual non-repudiation. Security analysis and overhead evaluation demonstrate that the proposed framework is secure and efficient.
doi:10.1016/j.comnet.2008.02.012 fatcat:n7ah5s6ehjb3fnggf6fe4lw6s4