时间：2017年12月19日（周二）9：20 -10：30
地点：旗山校区理工北楼601报告厅
主办：数学与信息学院、福建省网络安全与密码技术重点实验室
主讲：Khoa Nguyen
专家简介：Khoa Nguyen is a Senior Research Fellow at School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore. He received his MSc degree at Moscow State University (Russia) in 2008, and his PhD degree at Nanyang Technological University in 2014. His research interests are in the areas of cryptography and information security, with recent focus on privacy-preserving cryptographic protocols based on intractability assumptions from lattices and codes. Among his works, 9 papers have been published at conferences held by the International Association of Cryptologic Research (IACR), such as EUROCRYPT, ASIACRYPT and PKC.
报告摘要：At CRYPTO 1993, Stern introduced a zero-knowledge protocol for the Syndrome Decoding problem, which later became one of the most prominent tools in code-based cryptography. The protocol was first adapted into the lattice setting by Kawachi, Tanaka and Xagawa (ASIACRYPT 2008). A recent body of work has developed Stern's protocol into a relatively strong tool for designing privacy-preserving lattice-based schemes (e.g., group signatures, logarithmic-size ring signatures, group encryption, compact e-cash). In this talk, I will survey these recent developments.