Speaker: Shouhuai Xu, Associate Professor, Department of Computer Science
University of Texas at San Antonio
Date: 10:00-11:30, July 10 (Tuesday)
Venue: Room 102, Software Building, Zhangjiang Campus
Contact: Weili Han wlhan@fudan.edu.cn
Abstract:
Cloud is believed to be the next paradigm of computing, but is not widely adopted yet because of various security and privacy concerns. Cloud data storage integrity is one important problem in this context. There have been several cloud data storage integrity notions such as Proof of Data Possession (PDP), Proof of Retrievability (POR) and Proof of Storage (POS). These notions offer different flavors of integrity assurance, which is essentially that cloud users' data is kept intact in the cloud. On the other hand, cloud vendors have the incentive to deduplicate the same data that may be owned by many different cloud users. This is because deduplication could substantially reduce the consumption of both network bandwidth and server storage space. These two aspects are seemingly quite to the opposite of each other. In this talk, we show, somewhat surprisingly, that the two "conflicting" aspects can actually co-exist within a single solution. The talk is based on joint works with Qingji Zheng.
Bio:
Dr. Shouhuai Xu is an associate professor in the Department of Computer Science, University of Texas at San Antonio. His research is primarily in making cyberspace more secure and trustworthy. He is especially interested in mathematical modeling and analysis of macroscopic cyber security, and devising microscopic practical mechanisms including provably-secure cryptographic protocols to counter advanced cyber attacks (including malware). His research has been funded by AFOSR, ARO, NSF and ONR. He has served on the Program Committees of 60+ international conferences and workshops. He is currently an Associate Editor of IEEE Transactions on Dependable and Secure Computing (IEEE TDSC), and of International Journal of Security and Networks (IJSN). He earned his PhD in Computer Science from Fudan University. Please refer to www.cs.utsa.edu/~shxu for more information about his research.
