Vizard: A Metadata-hiding Data Analytic System with End-to-End Policy Controls

ePrint Report: Vizard: A Metadata-hiding Data Analytic System with End-to-End Policy Controls

Chengjun Cai, Yichen Zang, Cong Wang, Xiaohua Jia, Qian Wang

Owner-centric control is a widely adopted method for easing owners' concerns over data abuses and motivating them to share their data out to gain collective knowledge. However, while many control enforcement techniques have been proposed, privacy threats due to the metadata leakage therein are largely neglected in existing works. Unfortunately, a sophisticated attacker can infer very sensitive information …

controls data end end-to-end eprint report metadata policy system