题 目：Unique Signatures with Tight Reductions
报告人：Willy Susilo 澳大利亚伍伦贡大学
Digital signatures have been one of the most prominent cryptographic primitives. In this talk, I will describe the essential issues on digital signatures, namely how the security proofs and reductions work. In particular, I will go through one of the most fundamental issues in digital signatures, namely the construction of unique digital signatures. The impossibility of constructing unique digital signatures with tight reductions has been studied in the past 20 years. In this talk, I will demonstrate how to pass this impossibility and show how to build a practical scheme. Finally, I will conclude with some future research direction.
Willy Susilo is a Senior Professor in the School of Computing and Information Technology, Faculty of Engineering and Information Sciences in University of Wollongong, Australia. He is the director of Institute of Cybersecurity and Cryptology, School of Computing and Information Technology, University of Wollongong. Willy is an innovative educator and researcher. Currently, he is the Head of School of Computing and Information Technology at UOW (2015 - now). Prior to this role, he was awarded the prestigious Australian Research Council Future Fellowship in 2009. He was the former Head of School of Computer Science and Software Engineering (2009 - 2010) and the Deputy Director of ICT Research Institute at UOW (2006 - 2008). Willy obtained his PhD from the University of Wollongong in 2001. He has published more than 500 papers in journals and conference proceedings in cryptography and network security. In 2016, he was awarded the ”Researcher of the Year” at UOW, due to his research excellence and contributions. His work on the creation of short signature schemes has been well cited and it is part of the IETF draft. He has served as the program committee member of several international conferences. He is currently an Associate Editor of IEEE Transactions on Dependable and Secure Computing. Previously, he has served as an Associate Editor of IEEE Transactions on Information Forensics and Security. He is the Editor in Chief of the Information journal.