Establishing Trust in an Insecure Network

Event Date: 

Tuesday, December 12, 2006 - 12:00pm

Event Location: 

  • CTL Trailer 932

Ben Zhao

Ben Zhao is an Assistant Professor of Computer Science at UC Santa Barbara. His research focuses on the areas of networking, distributed systems, simulation and modeling.

Today's Internet applications are becoming integral components of our
everyday life. We rely on the Internet for performing financial transactions (Etrade), access to personal records (DMV), and communication with friends and family (Myspace/Facebook). Yet all this comes at a time when the Internet's security vulnerabilities are exploited on a daily basis for financial gain by malicious parties.

Professor Zhao's talk describes some of the recent efforts to improve security of
network applications through the use of reputation systems. Reputations are robust security mechanisms increasingly deployed in online communities such as Amazon and EBay. He will describe how reputations can be improved and used to secure network level services such as social networks. In addition he will also highlight and initiate discussion on the tension between accountability via reputations and information privacy.