Roberto Tamassia
Data Privacy and Security in Cloud Computing
Time: Friday, October 4th, 2013, 2:30 pm
Location: CEWIT 200
Cloud storage is an emerging trend in information technology. However, the fact that users no longer have physical possession of the data raises new challenges in terms of data privacy and security. Encrypting the data is not enough to assure privacy since information may be leaked through the pattern in which users access the data. We show how to achieve efficient privacy-preserving data access using low communication and storage overhead. Regarding data security, we present methods for efficiently verifying the integrity and completeness of data stored in the cloud. In reply to a query from a client, the cloud server computes and returns the answer plus a succinct proof of it, which is then verified by the client. We discuss algorithmic foundations, prototype implementations, and experimental results.
Roberto Tamassia is the Plastech Professor of Computer Science and the Chair of the Department of Computer Science at Brown University. He is also the Director of Brown's Center for Geometric Computing. His research interests include data security and privacy, applied cryptography, analysis, design, and implementation of algorithms, graph drawing and computational geometry. He has published six textbooks and more than 230 research articles, and has given more than 80 invited lectures worldwide. He is an AAAS Fellow, ACM Fellow, and IEEE Fellow, and the recipient of a Technical Achievement Award from the IEEE Computer Society for pioneering the field of graph drawing. He is listed among the 360 most cited computer science authors by Thomson Scientific, Institute for Scientific Information (ISI). His research has been funded by ARO, DARPA, NATO, NSF, and several industrial sponsors. He co-founded the Journal of Graph Algorithms and Applications and the Symposium on Graph Drawing. He serves regularly on program committees of international conferences. He received the Ph.D. degree in electrical and computer engineering from the University of Illinois at Urbana-Champaign.
