CERIAS Weekly Security Seminar – Purdue University
Ragib Hasan, Fake Picassos, Tampered History, and Digital Forgery: Protecting the Genealogy of Bits with Secure Provenance
As increasing amounts of valuable information are produced and persistdigitally, the ability to determine the origin of data becomesimportant. In science, medicine, commerce, and government, dataprovenance tracking is essential for rights protection, regulatorycompliance, management of intelligence and medical data, andauthentication of information as it flows through workplace tasks.While significant research has been conducted in this area, theassociated security and privacy issues have not been explored, leavingprovenance information vulnerable to illicit alteration as it passesthrough untrusted environments.In this talk, we show how to provide strong integrity andconfidentiality assurances for data provenance information in anuntrusted distributed environment. We describe our provenance-awaresystem prototype that implements provenance tracking of data writes atthe application layer, which makes it extremely easy to deploy. Wepresent empirical results that show that, for typical real-lifeworkloads, the run-time overhead of our approach to recordingprovenance with confidentiality and integrity guarantees ranges from1% - 13%.For more details, please refer to http://dais.cs.uiuc.edu/provenance About the speaker: Ragib Hasan is a Ph.D. candidate at the Department of ComputerScience, University of Illinois at Urbana-Champaign, working withProf. Marianne Winslett. He is also co-advised by Prof. Radu Sion of StonyBrook University. His dissertation focuses on storage security ingeneral, and secure provenance, tamper-evident data storage, andterm-immutable databases in particular. His other research interestsinclude trust management, remembrance-capable systems, and computer-supported collaborative knowledge-generation. Hasan graduatedsumma-cum-laude, with a B.S. in Computer Science and Engineering, fromBangladesh University of Engineering and Technology in 2003. Hereceived his M.S. in Computer Science from the University of Illinoisat Urbana-Champaign in 2005. He is the recipient of the 2009 NSF/CRAComputing Innovation (CIFellows) Postdoctoral Fellowship, and wouldjoin the Johns Hopkins University as a postdoctoral researcher in Fall2009.
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