特邀讲者 朱斌

Dr. Bin Zhu is a lead researcher at Microsoft Research Asia (MSRA). His research covers Web security and performance, authentication, content protection, digital rights management, multimedia processing and communications. Before he joined MSRA in Dec. 2001, he worked as a lead scientist at Cognicity Inc. for more than 4 years. He received his Ph. D. and M. S. in electrical engineering from the Univ. of Minnesota, and B. S. in physics from Univ. of Science and Technology of China.

报告提要：In many esp. personalized services, personal information or usage is need or traceable for desirable functionaries. Privacy might be sacrificed. Technologies should be developed to strike a balance between functionalities and privacy protection. A typical approach for the balance is to allow traceable to a group level: only the group of the user can be identified but the individual user cannot. In this presentation, we present a technology to strike such a balance for a tough application: DRM application where each content is encrypted with a separate key. A license server needs to know the content ID to issue a license with the corresponding encryption key. The privacy consideration does not want the license server knows the content ID or what a user is going to play. Our technology is based on (partially) blind signature primitive which enables a license server to provide the correct individual decryption key without knowing the corresponding content (but possibly the group the content belongs to).

执行主席 陈文光

博士。CCF YOCSEF学术委员会委员。分别于1995年和2000年于清华大学计算机系获得学士和博士学位。2003年起在清华大学计算机系工作，现职教授，从2007年4月起担任副系主任。主要研究领域为并行计算的编程模型，并行化编译和操作系统。

执行主席 郭莉