Dr. Liang Xue is currently an assistant professor at the School of Information Technology, York University. She received her B. Eng. and M. Eng. degrees in computer science from the University of Electronic Science and Technology of China, in 2015 and 2018 respectively, and received her Ph.D. degree in Electrical and Computer Engineering from the University of Waterloo, Canada, in 2022. She was a Postdoctoral Research Fellow at the School of Computer Science, University of Guelph. Her research interests include applied cryptography and security and privacy preservation in the Internet of Things, cloud computing, machine learning, and blockchain-based applications. Dr. Xue serves as the associate editor for IEEE Internet of Things Journal and IEEE Transactions on Dependable and Secure Computing as well as the TPC members of many conferences, including IEEE ICC, ICCC, VTC, and PST. Dr. Xiaodong Lin received the PhD degree in Information Engineering from Beijing University of Posts and Telecommunications, China, and the PhD degree (with Outstanding Achievement in Graduate Studies Award) in Electrical and Computer Engineering from the University of Waterloo, Canada. He is currently a professor in the School of Computer Science at the University of Guelph, Canada. His research interests include computer and network security, privacy protection, applied cryptography, computer forensics, and software security. He is a Fellow of the IEEE.Dr. Xuemin (Sherman) Shen received the Ph.D. degree in electrical engineering from Rutgers University, New Brunswick, NJ, USA, in 1990. He is a University Professor with the Department of Electrical and Computer Engineering, University of Waterloo, Canada. His research focuses on network resource management, wireless network security, Internet of Things, 5G and beyond, and vehicular networks. Dr. Shen is a registered Professional Engineer of Ontario, Canada, an Engineering Institute of Canada Fellow, a Canadian Academy of Engineering Fellow, a Royal Society of Canada Fellow, a Chinese Academy of Engineering Foreign Member, and a Distinguished Lecturer of the IEEE Vehicular Technology Society and Communications Society. Dr. Shen received “West Lake Friendship Award” from Zhejiang Province in 2023, President's Excellence in Research from the University of Waterloo in 2022,  the Canadian Award for Telecommunications Research from the Canadian Society of Information Theory (CSIT) in 2021, the R.A. Fessenden Award in 2019 from IEEE, Canada, Award of Merit from the Federation of Chinese Canadian Professionals (Ontario) in 2019, James Evans Avant Garde Award in 2018 from the IEEE Vehicular Technology Society, Joseph LoCicero Award in 2015 and Education Award in 2017 from the IEEE Communications Society (ComSoc), and Technical Recognition Award from Wireless Communications Technical Committee (2019) and AHSN Technical Committee (2013). He has also received the Excellent Graduate Supervision Award in 2006 from the University of Waterloo and the Premier’s Research Excellence Award (PREA) in 2003 from the Province of Ontario, Canada. He serves/served as the General Chair for the 6G Global Conference’23, and ACM Mobihoc'15, Technical Program Committee Chair/Co-Chair for IEEE Globecom’24, 16 and 07, IEEE Infocom’14, IEEE VTC’10 Fall, and the Chair for the IEEE ComSoc Technical Committee on Wireless Communications. Dr. Shen is the Past President of the IEEE ComSoc, Vice President for Technical & Educational Activities, Vice President for Publications, Member-at-Large on the Board of Governors, Chair of the Distinguished Lecturer Selection Committee, and a Member of IEEE Fellow Selection Committee of the ComSoc. Dr. Shen was the Editor-in-Chief of the IEEE IoT JOURNAL, IEEE Network, and IET Communications.

• Introduction.- Blockchain Technology and Its Applications in Finance.- Privacy and Accountability in Blockchain-based Financial Services.- Privacy-Preserving and Trust-Enhancing Techniques.- Privacy-Preserving and Accountable Blockchain-based Lending.- Decentralized Anonymous Payment with Regulatory Enforcement.- Fair and Fine-grained Data Trading Scheme with Privacy Preservation.- A Blockchain-based Fair and Privacy-Preserving Data Trading Scheme.- Conclusion.