By Topic

Temporal Privacy in Wireless Sensor Networks

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Kamat, Pandurang ; Wireless Inf. Network Lab., Rutgers Univ., New Brunswick, NJ ; Wenyuan Xu ; Trappe, W. ; Zhang, Y.

Although the content of sensor messages describing "events of interest" may be encrypted to provide confidentiality, the context surrounding these events may also be sensitive and therefore should be protected from eavesdroppers. An adversary armed with knowledge of the network deployment, routing algorithms, and the base-station (data sink) location can infer the temporal patterns of interesting events by merely monitoring the arrival of packets at the sink, thereby allowing the adversary to remotely track the spatio-temporal evolution of a sensed event. In this paper, we introduce the problem of temporal privacy for delay- tolerant sensor networks and propose adaptive buffering at intermediate nodes on the source-sink routing path to obfuscate temporal information from an adversary. We first present the effect of buffering on temporal privacy using an information-theoretic formulation and then examine the effect that delaying packets has on buffer occupancy. We evaluate our privacy enhancement strategies using simulations, where privacy is quantified in terms of the adversary's estimation error.

Published in:

Distributed Computing Systems, 2007. ICDCS '07. 27th International Conference on

Date of Conference:

25-27 June 2007