Ancile: Enhancing Privacy for Ubiquitous Computing with Use-Based Privacy

Widespread deployment of Intelligent Infrastructure and the Internet of Things creates vast troves of passively-generated data. These data enable new ubiquitous computing applications---such as location-based services---while posing new privacy threats. In this work, we identify challenges that arise in applying use-based privacy to passively-generated data, and we develop Ancile, a platform that enforces use-based privacy for applications that consume this data. We find that Ancile constitutes a functional, performant platform for deploying privacy-enhancing ubiquitous computing applications.