New Directions for Self-Destructing Data Systems
This paper seeks to advance the state of the art in practical self-destructing data systems that secure sensitive data from disclosure in the highly mobile, social-networked, cloud-computing world. The authors' work facilitates the automatic, timed, and simultaneous destruction of all copies of a self-destructing data object (such as a message or file) without any explicit action by the user and without relying on any single trusted third party. To validate their approach, they designed, implemented, deployed, and measured these systems. They prototyped the extensible Cascade system with support for Tide, Vuze, and OpenDHT. They prototyped the Tide key-storage system on Apache, deployed it on over 400 PlanetLab nodes in the Internet, and demonstrated that the structure is highly immune to attack.