各部门、各单位：

应我校网络空间安全学院邀请，新加坡管理大学Robert Deng教授、Guomin Yang副教授和福建师范大学许胜民副教授将于9月21日（周四）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：

报告题目一：TEE-assisted Crypto   Systems–Towards Designing Practical Data Security Solutions

报 告 人：Robert Deng

报告时间：2023年9月21日（周四）15:00-16:30

报告地点：网络空间安全学院会议室（腾讯会议：592623368）

摘 要：Traditional public key cryptography and symmetric key   cryptography are at the heart of ubiquitously deployed security solutions for   protecting data in transit and storage (such as TLS, IPSec, WPA2 & WPA3,   Signal Protocol, BitLocker). To protect data in use, many powerful crypto   algorithms, such as functional encryption, fully homomorphic encryption,   multi-party computation, and zero-knowledge proof, have been proposed. While   significant progress has been made in the research of these advanced crypto   techniques, they still suffer from high processing cost and are mostly   limited to applications in certain niche areas. On the other hand, trusted   execution environments (TEEs) offer hardware-assisted security guarantees   with CPU speed performance but suffer from a larger attack surface. In this   talk, we will first present an overview of TEEs’ security features, threat   models, attacks and countermeasures. We will then present our efforts on   designing TEE-assisted crypto systems, and show how crypto and TEE may   complement each other and be combined to realize practical security   solutions. Finally, we will point out   some potential future research directions.

报告人简介：Robert Deng is AXA Chair Professor of   Cybersecurity, Director of Secure Mobile Centre, and Deputy Dean for Faculty   & Research, School of Computing and Information Systems, Singapore   Management University (SMU). His research interests are in the areas of data   security and privacy, mobile and IoT security, and applied cryptography. He received the Outstanding University   Researcher Award from National University of Singapore, Lee Kuan Yew   Fellowship for Research Excellence from SMU, and Asia-Pacific Information   Security Leadership Achievements Community Service Star from International   Information Systems Security Certification Consortium (ISC2). He is a Fellow   of IEEE and Fellow of Academy of Engineering Singapore.

报告题目二：Multimodal Private   Signature: Balancing Privacy and Accountability in Digital Transactions

报 告 人：Guomin Yang

报告时间：2023年9月21日（周四）16:30-18:00

报告地点：网络空间安全学院会议室（腾讯会议：592623368）

摘 要：Digital signature (DS) is a fundamental security   primitive for achieving integrity and non-repudiation in digital   transactions. To protect the privacy of the signer, various   privacy-preserving DS schemes have been introduced in the literature.   Nonetheless, absolute privacy is not ideal in practice as it could be abused   for illegal activities. We introduce Multimodal Private Signature (MPS) – a   privacy-preserving signature system that offers a novel accountability   feature: it allows a designated opening authority to learn some partial   information of the signer’s identity, and the disclosed information can be   determined by the transaction data being signed. Moreover, the (partial)   identity disclosure to the authority is known in advance by the signer,   meaning that the signer gives his/her consent. MPS balances the privacy and accountability   needs and can be used in various privacy-preserving applications.

报告人简介：Guomin Yang is an Associate Professor at the   School of Computing and Information Systems, Singapore Management University.   He completed PhD in Computer Science from City University of Hong Kong in   2009. Before joining SMU in August 2022, he was an Associate Professor at the   University of Wollongong, Australia. His research interests are applied   cryptography and privacy enhancing technologies. In 2015, he received the   Australian Research Council Discovery Early Career Researcher Award. He is on   the editorial board of Theoretical Computer Science, Journal of Cryptologic   Research, and Journal of Surveillance, Security and Safety. He is also a   co-editor of the ISO/IEC 11770-7 (2021) standard, and a program co-chair of   ACISP 2018 and ACISP 2022.

报告题目三：Towards Security,   Functionality and Efficiency of Cloud Data Access Control

报 告 人：许胜民

报告时间：2023年9月21日（周四）18:00-19:30

报告地点：网络空间安全学院会议室（腾讯会议：592623368）

摘 要：数据是国家战略资源，数据安全是国家安全的重要组成部分。近年来，新型信息系统不断兴起，新型应用场景持续涌现，在数据访问、数据监管、系统性能等方面产生了新的需求和挑战。许胜民博士聚焦数据安全所面临的上述需求与挑战，提出了双边访问控制（Bilateral Access   Control）架构、强化了当前的双重访问控制（Dual-policy Access Control）模型。本次报告简要介绍当前双边访问控制与双向访问控制的发展现状与未来研究方向。

报告人简介：许胜民，国家高层次青年人才计划（海外）入选者，福建师范大学计算机与网络空间安全学院副教授，硕士生导师。2014年3月起在 Allen M.H. Au 教授与 Guomin Yang 教授的指导下从事密码学研究；2014年12月于澳大利亚伍伦贡大学获一等荣誉学士学位；2018年7月博士毕业于澳大利亚伍伦贡大学，指导老师为 Yi Mu 教授与 Guomin Yang 教授。2018年9月起，先后在新加坡科技设计大学与新加坡管理大学从事博士后研究，合作导师为 Robert H. Deng 教授、Jianying Zhou 教授、Yingjiu Li 教授；2022年8月回国工作。在密码学与数据安全、区块链与机器学习安全、云计算隐私保护技术开展了深入研究。在ESORICS、ACSAC、AsiaCCS、IEEE 汇刊 TIFS/TDSC 等网络与信息安全领域会议/期刊发表论文 50 余篇，其中 CCF 推荐的 A 类论文 10 余篇，获欧洲计算安全年会 ESORICS 2020 最佳论文奖。

特此通知。  

   网络空间安全学院

   2023年9月20日