第六十一期

报告人：Pengcheng Su, Peking University

时间：6月26日（星期五）4:00pm

地点：静园五院204

Host：王颖，图灵班2019级


报告信息

Title

How Private Is Anonymous Voting? ——An Introduction to Theory of Shuffle Model


Abstract

The shuffle model serves as an abstract representation of anonymity mechanisms. It assumes the existence of a secure, anonymous channel that randomly permutes all users' messages before publication, capturing a wide range of application scenarios such as anonymous voting, honeypots/honeywords, honey encryption, and Shuffle Differential Privacy (Shuffle-DP). A fundamental question arises: Just how secure is anonymous voting? In an anonymous vote with  participants, is the probability of my message being pinpointed exactly  ? How many bits of information are actually leaked? What if an adversary possesses rich prior knowledge? In this talk, I will introduce the foundations of the shuffle model and present our latest theoretical advancements—a comprehensive framework that provides answers to all of these questions.


Biography


Pengcheng Su is a 2022 Ph.D. student at the School of Computer Science, Peking University, advised by Prof. Ping Wang and Assistant Researcher Haibo Cheng. His research focuses on cryptography and the theory of differential privacy. He also has broad interests in learning theory and other areas of theoretical computer science.


about CS Peer Talk

作为活动的发起人，我们来自北京大学图灵班科研活动委员会，主要由图灵班各年级同学组成。我们希望搭建一个CS同学交流的平台，促进同学间的交流合作，帮助同学练习展示，同时增进友谊。


目前在计划中的系列包括但不限于：

  • 教程系列：学生讲者为主，介绍自己的研究领域

  • 研究系列：学生讲者为主，介绍自己的研究成果

  • 客座系列：邀请老师做主题报告


除非报告人特别要求，报告默认是非公开的，希望营造一个自由放松但又互相激励的交流氛围。


主讲嘉宾招募

如果你愿意和大家分享你的学术成果、经历经验，总结回顾、触发新思，欢迎报名自荐。


主讲人报名：发邮件至 cs_research_tc@163.com，并抄送 cfcs@pku.edu.cn，写明想讲的题目、内容及时间。



北京大学图灵班科研活动委员会



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