Seminar by Nilesh Mishra
Personal Data Vaults: A Locus of Control for Personal Data Streams
Nilesh Mishra
Department of Computer Science, University of Southern California.
Date: Wednesday, January 12th, 2011
Time: 5:00 PM
Venue: CS101.Abstract:
The increasing ubiquity of the mobile phone is creating many opportunities for personal context sensing, and will result in massive databases of individuals' sensitive information incorporating locations, movements, images, text annotations, and even health data. In existing system architectures, users upload their raw (unprocessed or filtered) data streams directly to content-service providers and have little control over their data once they ``opt-in''. We present Personal Data Vaults(PDVs), a privacy architecture in which individuals retain ownership of their data. Data are routinely filtered before being shared with content-service providers, and users or data custodian services can participate in making controlled data-sharing decisions. Introducing a PDV gives users flexible and granular access control over data. To reduce the burden on users and improve usability, we explore three mechanisms for managing data policies: Granular ACL,Trace-audit and Rule Recommender. We have implemented a proof-of-concept PDV and evaluated it using real data traces collected from two personal participatory sensing applications.
About the speaker:
Nilesh Mishra is a PhD Candidate in Computer Science at the University of Southern California. He earned his B. Tech. and M. Tech in Computer Science and Engineering at IIT Kanpur. His research interests broadly lie in the area of systems and networking. In particular he is interested in privacy in online world, power monitoring and power metering of applications and in networked sensing systems for structural health monitoring.