Decentralised access control in 802.11 networks

  • Authors:
  • Marco Domenico Aime;Antonio Lioy;Gianluca Ramunno

  • Affiliations:
  • Dipartimento di Automatica e Informatica, Politecnico di Torino, Torino, Italy;Dipartimento di Automatica e Informatica, Politecnico di Torino, Torino, Italy;Dipartimento di Automatica e Informatica, Politecnico di Torino, Torino, Italy

  • Venue:
  • CMS'05 Proceedings of the 9th IFIP TC-6 TC-11 international conference on Communications and Multimedia Security
  • Year:
  • 2005

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Abstract

The current WiFi access control framework descends from solutions conceived in the past for dial-up scenarios. A key difference between the two worlds is mobility: dial-up handles nomadic users, while modern wireless networks support continuous mobility through always-on personal devices. Not surprisingly, WiFi authentication does not exploit mobility in any way; on the contrary, mobility is perceived as a problem to be fixed by some fast-handoff solution. Though fast-handoff is indeed an open issue, mobility may even help to build security systems. The paper describes a decentralised access control framework for WiFi networks that exploits mobility to avoid a central authority to be always online.