CS Seminar: Qiang Ye - Protocols and Algorithms for Mobile Cloud and Distributed Systems

Speaker: Qiang Ye (UPEI)

Title:   Protocols and Algorithms for Mobile Cloud and Distributed Systems


Cloud and Distributed Systems have been widely deployed as the infrastructure for many important applications. However, authentication and scalability remain to be two challenging problems in these systems. In this presentation, a light-weight authentication protocol for end-to-end security in mobile cloud computing, Message Digest and Location based Authentication (MDLA), is first discussed. The novelty of MDLA lies in the fact that it is capable of providing secure authentication for mobile clouds while involving only low-complexity computation. Technically, both the up-to-date time and location of mobile cloud clients are used in MDLA to enable effective authentication. Our experimental results indicate that MDLA can prevent most of the potential attacks during the authentication process. In the second half of the talk, a scalable distance estimation algorithm for distributed systems, DIStributed Coordinate System (DISCS), is presented. The motivation behind this study is that many distributed applications, such as BitTorrent, need to know the distance between each pair of network hosts in order to optimize their performance. For small-scale systems, explicit measurements can be carried out to collect the distance information. For large-scale applications, this approach does not work due to the tremendous amount of measurements that have to be completed. As a scalable algorithm, DISCS utilizes a limited set of distance measurements to achieve high-precision distance estimation for distributed systems. At the end of the presentation, our future work on protocols and algorithms for mobile cloud and distributed systems will be briefly discussed.

Brief Bio:

Qiang Ye is a Professor in the School of Mathematical and Computational Sciences at the University of Prince Edward Island, Canada. His current research interests lie in the area of Distributed Systems/Communication Networks in general. Specifically, he is interested in Architecture and Security of Mobile Cloud Computing, Mobile and Wireless Networks, and Social Networks. He received a Ph.D. in Computing Science from the University of Alberta in 2007. His M. Engr. and B. Engr. in Computer Science and Technology are from Harbin Institute of Technology, P.R. China. He is a Member of IEEE and ACM. 

URL:  http://www.upei.ca/science/qiang-ye



Room 127, Goldberg Computer Science Building