各部门、各单位：

应我校网络空间安全学院邀请，美国佛罗里达大西洋大学刘峰豪博士将于12月27日来我校做专题学术讲座，欢迎广大师生参加！报告的具体安排如下：

报告题目：Efficient Multi-Party Private Set Intersection Against Malicious Adversaries

报 告 人：刘峰豪 博士

报告时间：2019年12月27日（周五）10:00—11:30

报告地点：网络空间安全学院会议室

摘    要：Private set intersection (PSI) enables parties to compute the intersection of their inputs without leaking any additional information. Recently, there have been significant advances in the two-party settings with malicious security, making two-party PSI truly practical even compared with the naive insecure method. However, efficient PSI solutions in the more general case (multi-party) are only known for the semi-honest setting. How to construct a practical multi-party solution (especially for large inputs) in the malicious setting remains an important open question in this research line.

In this work, we first present an efficient multi-party PSI protocol secure against any malicious adversary that does not simultaneously corrupt two designated parties. Next, we describe how to efficiently enhance security of the protocol when the two designated parties are corrupted. Finally, we present our experiment results for the first protocol, confirming that the efficiency scales linearly in the number of parties of the work Rindal and Rosulek (Eurocrypt 17).

报告人简介：刘峰豪（Feng-Hao Liu）博士为美国佛罗里达大西洋大学计算机科学系博士生导师。其博士毕业于布朗大学，之后两年于马里兰大学网络安全中心担任博士后研究员。他的研究方向为：网络安全，格密码，安全多方计算，以及抗旁路攻击。已发表论文40余篇，其中多篇论文发表在网络安全领域国际顶级会议如：美密、欧密、亚密、CCS上。

特此通知。

国际合作与交流处

网络空间安全学院

归国留学人员联谊会

2019年12月25日