WiFi Authentication through Social Networks: A Decentralized and Context-Aware Approach

Yunus Durmus, Koen Langendoen

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

6 Citations (Scopus)

Abstract

With the proliferation of WiFi-enabled devices, people expect to be able to use them everywhere, be it at work, while commuting, or when visiting friends. In the latter case, home owners are confronted with the burden of controlling the access to their WiFi router, and usually resort to simply sharing the password. Although convenient, this solution breaches basic security principles, and puts the burden on the friends who have to enter the password in each and every of their devices. The use of social networks, specifying the trust relations between people and devices, provides for a more secure and more friendly authentication mechanism. In this paper, we progress the state-of-the-art by abandoning the centralized solution to embed social networks in WiFi authentication; we introduce EAP-SocTLS, a decentralized approach for authentication and authorization of WiFi access points and other devices, exploiting the embedded trust relations. In particular, we address the (quadratic) search complexity when indirect trust relations, like the smartphone of a friend's kid, are involved. We show that the simple heuristic of limiting the search to friends and devices in physical proximity makes for a scalable solution. Our prototype implementation, which is based on WebID and EAP-TLS, uses WiFi probe requests to determine the pool of neighboring devices and was shown to reduce the search time from 1 minute for the naive policy down to 11 seconds in the case of granting access over an indirect friend.
Original languageEnglish
Title of host publication2014 IEEE International Conference on Pervasive Computing and Communication Workshops (PERCOM WORKSHOPS)
Subtitle of host publicationThe Fifth IEEE Workshop on Pervasive Collaboration and Social Networking
PublisherIEEE
Pages532-538
Number of pages7
ISBN (Electronic)978-1-4799-2736-4
DOIs
Publication statusPublished - 1 Mar 2014
Event2014 IEEE International Conference on Pervasive Computing and Communication Workshops (Percom Workshops), 2014, Budapest, Hungary - Piscataway
Duration: 24 Mar 201428 Mar 2014

Conference

Conference2014 IEEE International Conference on Pervasive Computing and Communication Workshops (Percom Workshops), 2014, Budapest, Hungary
Period24/03/1428/03/14

Keywords

  • Social Devices
  • WiFi Authentication and Authorization
  • WebID
  • EAP-TLS
  • EAP-SocTLS

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