Undeniable billing in mobile communication
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
Wireless Communications & Mobile Computing
Interworking of 3G cellular networks and wireless LANs
International Journal of Wireless and Mobile Computing
IEEE 802.11 roaming and authentication in wireless LAN/cellular mobile networks
IEEE Wireless Communications
Mutual Authentication and Key Exchange Protocols for Roaming Services in Wireless Mobile Networks
IEEE Transactions on Wireless Communications
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In this paper, a framework of authentication and undeniable billing support for an agent-based 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 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.