Realtime location privacy via mobility prediction: Creating confusion at crossroads

Joseph T. Meyerowitz, Romit Roy Choudhury

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Users face privacy risks when providing personal location data to untrusted location based services (LBSs). Many existing attempts to anonymize users have relied on suppressing information about users' locations. This suppression results in reduced functionality, including degraded spatial accuracy or the loss of realtime location updates. We propose anonymizing a user by camouflaging their current location with various predicted paths. This is akin to increasing the noise floor around the user. We believe this different approach provides many advantages. By allowing the user to keep all desired functionality while still protecting the user's privacy, we enable use of a broader class of LBSs. To demonstrate our proposal, we develop CacheCloak, a system that enables realtime anonymization of continuous location updates without any loss of accuracy. Data from a GIS-based traffic simulation in an urban environment shows that CacheCloak can anonymize users rapidly.

Original languageEnglish (US)
Title of host publicationProceedings of the 10th Workshop on Mobile Computing Systems and Applications, HotMobile'09
DOIs
StatePublished - Jul 23 2009
Externally publishedYes
Event10th Workshop on Mobile Computing Systems and Applications, HotMobile'09 - Santa Cruz, CA, United States
Duration: Feb 23 2009Feb 24 2009

Publication series

NameProceedings of the 10th Workshop on Mobile Computing Systems and Applications, HotMobile'09

Other

Other10th Workshop on Mobile Computing Systems and Applications, HotMobile'09
CountryUnited States
CitySanta Cruz, CA
Period2/23/092/24/09

Keywords

  • Algorithms
  • Anonymity
  • GPS
  • LBS
  • Location privacy
  • Mobility prediction
  • Performance
  • Security

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Software

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  • Cite this

    Meyerowitz, J. T., & Choudhury, R. R. (2009). Realtime location privacy via mobility prediction: Creating confusion at crossroads. In Proceedings of the 10th Workshop on Mobile Computing Systems and Applications, HotMobile'09 [2] (Proceedings of the 10th Workshop on Mobile Computing Systems and Applications, HotMobile'09). https://doi.org/10.1145/1514411.1514413