DocumentCode :
2300019
Title :
Privacy-Preserving Collaborative Path Hiding for Participatory Sensing Applications
Author :
Christin, Delphine ; Guillemet, Julien ; Reinhardt, Andreas ; Hollick, Matthias ; Kanhere, Salil S.
Author_Institution :
Secure Mobile Networking Lab., Tech. Univ. Darmstadt, Darmstadt, Germany
fYear :
2011
fDate :
17-22 Oct. 2011
Firstpage :
341
Lastpage :
350
Abstract :
The presence of multimodal sensors on current mobile phones enables a broad range of novel mobile applications including, e.g., monitoring noise pollution or traffic and road conditions in urban environments. Data of unprecedented quantity and quality can be collected and reported by a possible user base of billions of mobile phone subscribers worldwide. The collection of detailed sensor and location data may however compromise user privacy. In this paper, we present a decentralized mechanism to preserve location privacy during the collection of sensor readings. As most sensor readings are geotagged, we propose to exchange them between users in physical proximity in order to jumble the paths followed by the users. We evaluate different strategies to exchange and report the sensor readings to the application using real-world GPS traces of mobile users. The results demonstrate the feasibility and efficacy of our proposed scheme, which can obfuscate up to 100% of the visited locations in the best instances.
Keywords :
Global Positioning System; data privacy; mobile radio; telecommunication security; decentralized mechanism; geotagged; location data; location privacy; mobile application; mobile phone; mobile user; multimodal sensor; participatory sensing application; privacy-preserving collaborative path hiding; real-world GPS trace; sensor reading; user privacy; Global Positioning System; Mobile handsets; Monitoring; Privacy; Sensors; Servers; Spatiotemporal phenomena; Privacy; participatory sensing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Mobile Adhoc and Sensor Systems (MASS), 2011 IEEE 8th International Conference on
Conference_Location :
Valencia
ISSN :
2155-6806
Print_ISBN :
978-1-4577-1345-3
Type :
conf
DOI :
10.1109/MASS.2011.41
Filename :
6076632
Link To Document :
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