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

  • Authors:
  • Minghui Shi;Xuemin (Sherman) Shen;Jon W. Mark;Dongmei Zhao;Yixin Jiang

  • Affiliations:
  • Electrical and Computer Engineering Department, University of Waterloo, 200 University Avenue W., Waterloo, Ontario, Canada N2L 3G1;Electrical and Computer Engineering Department, University of Waterloo, 200 University Avenue W., Waterloo, Ontario, Canada N2L 3G1;Electrical and Computer Engineering Department, University of Waterloo, 200 University Avenue W., Waterloo, Ontario, Canada N2L 3G1;Electrical and Computer Engineering Department, McMaster University, Hamilton, Ontario, Canada;Electrical and Computer Engineering Department, University of Waterloo, 200 University Avenue W., Waterloo, Ontario, Canada N2L 3G1

  • Venue:
  • Computer Networks: The International Journal of Computer and Telecommunications Networking
  • Year:
  • 2008

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Abstract

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.