Canopy: A Verifiable Privacy-Preserving Token Ring based Communication Protocol for Smart Homes
Abstract
This paper focuses on the new privacy challenges that arise in smart homes. Specifically, the paper focuses on inferring the user's activities -- which may, in turn, lead to the user's privacy -- via inferences through device activities and network traffic analysis. We develop techniques that are based on a cryptographically secure token circulation in a ring network consisting of smart home devices to prevent inferences from device activities, via device workflow, i.e., inferences from a coordinated sequence of devices' actuation. The solution hides the device activity and corresponding channel activities, and thus, preserve the individual's activities. We also extend our solution to deal with a large number of devices and devices that produce large-sized data by implementing parallel rings. Our experiments also evaluate the performance in terms of communication overheads of the proposed approach and the obtained privacy.
Cite
@article{arxiv.2004.03841,
title = {Canopy: A Verifiable Privacy-Preserving Token Ring based Communication Protocol for Smart Homes},
author = {Nisha Panwar and Shantanu Sharma and Guoxi Wang and Sharad Mehrotra and Nalini Venkatasubramanian},
journal= {arXiv preprint arXiv:2004.03841},
year = {2020}
}
Comments
This version has been accepted in ACM Transactions on Cyber-Physical Systems (TCPS). A preliminary version of this paper was accepted in ACM Conference on Data and Application Security and Privacy (CODASPY) 2019. arXiv admin note: substantial text overlap with arXiv:1901.08618