应我校网络空间安全学院和科研处邀请，英国萨里大学Yangguang Tian博士将于4月29日来我校做学术报告，欢迎广大师生参加！报告的具体安排如下：

报告题目：Fast Attribute-based Encryption

报 告 人：Yangguang Tian博士

报告时间：2025年4月29日（周二）9:00-11:30

报告地点：东区FZ555

摘 要：Fast attribute-based encryption (ABE) offers fast decryption and ensures adaptive security. For example, fast decryption requires 0.1 second to decrypt a ciphertext consisting of 100 attributes while traditional ABE takes 4 seconds to decrypt it. In this talk, I will briefly introduce two new fast KP/CP-ABE schemes, which were published at USENIX’24 and CCS’24 respectively. The first scheme is called FEASE, a fast and expressive ASE (asymmetric searchable encryption). FEASE is based on a new fast anonymous KP-ABE. The second scheme is called FABSEA, a fast and anonymous ABE under standard assumptions. FABSEA is less efficient compared to the fastest one (FABEO, CCS’22) which is only proven secure under the GGM.

报告人简介：Dr. Yangguang Tian received his PhD degree in Applied Cryptography from the University of Wollongong, Australia. After PhD, he did post-docs at School of Information System, Singapore Management University, and iTrust, Singapore University of Technology and Design. Before Surrey, he was a research-based assistant professor at Osaka University, Japan. He is currently a lecturer at the University of Surrey, UK. His research interests include applied cryptography, network security, blockchain technologies and privacy-preserving technologies. Dr. Tian’s recent research works have been published in the cybersecurity-related international conferences and journals, such as ACM CCS’24, USENIX’24, AsiaCCS’24, IEEE TIFS’23, IEEE TDSC’24, etc.

网络空间安全学院

科研处

2025年4月28日