报告题目：Privacy-Preserving Data Exchange

演讲摘要：The blockchain technology can be extensively applied in many areas, from cryptocurrency, DeFi, NFT (Non-Fungible Token) to Web3. In a Web3 platform for data exchange, we need to provide data traceability and privacy while ensuring fairness. Existing systems encrypt the data to protect data privacy, which hinders demanders from verifying the correctness of the data and evaluating its value. In this talk, we propose a novel traceable data exchange scheme based on non-fungible tokens and zero knowledge. Our scheme has several advantages that is able to (i) track all transformations of data during their lifecycle and record them on the blockchain; (ii) provide zero-knowledge proofs to securely guarantee that all complex transformations and data contents are correct and meet demanders’ requirements; and (iii) warrant exchange fairness and data privacy in public storage platforms.

讲者简介：Dr. Bin Xiao is a professor at Department of Computing, the Hong Kong Polytechnic University, Hong Kong. Prof. Xiao received the B.Sc and M.Sc degrees in Electronics Engineering from Fudan University, China, and Ph.D. degree in computer science from University of Texas at Dallas, USA. His research interests include AI and network security, data privacy, and blockchain systems. He published more than 200 technical papers in international top journals and conferences. Currently, he is the associate editor of IEEE IoTJ, IEEE TCC, and IEEE TNSE. He has been the associate editor of Elsevier JPDC from 2016 to 2021. He is the IEEE ComSoc Distinguished Lecturer and the vice chair of IEEE ComSoc CISTC committee. He has been the track co-chair of IEEE ICDCS2022, the symposium co-chair of IEEE ICC2020, ICC 2018 and Globecom 2017, and the general chair of IEEE SECON 2018. He is a senior member of IEEE, the member of ACM and CCF.