报告题目：Recent Developments in Post-Quantum Cryptography
报告人： Prof. Tsuyoshi Takagi, University of Tokyo
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报告时间：2018年11月8日15：00-16：30
报告地点：北校区新科技楼609
邀请人：刘振华 教授
报告人简介：Tsuyoshi Takagi received the B.Sc. and M.Sc. degrees in mathematics from Nagoya University in 1993 and 1995, respectively. He was engaged in research on network security at NTT Laboratories from 1995 to 2001. He received the PhD from the Technical University of Darmstadt in 2001. He was an Assistant Professor in the Department of Science at Technical University of Darmstadt until 2005. He was a Professor at Kyushu University until 2018. He is currently a Professor in the Graduate School of Information Science and Technology at University of Tokyo. His current research interests are information security and cryptography. He received DOCOMO Mobile Science Award in 2013, IEICE Achievement Award in 2013, and JSPS Prize in 2014. Dr. Takagi was a Program Chair of the 7th International Conference on Post-Quantum Cryptography, PQCrypto 2016.
报告摘要：The security of current public-key cryptosystems relies on the hardness of factoring large integers or solving discrete logarithm problems. However, these mathematical problems can be solved in polynomial time using a quantum computer. This vulnerability has prompted research into post-quantum  cryptography using alternative mathematical problems that are secure in the era of quantum computers. In this regard, the National Institute of Standards and Technology (NIST) began to standardize post-quantum cryptography in 2016.  In this talk, we give an overview of recent developments on post-quantum cryptography. In particular, we describe the construction and security of multivariate polynomial cryptosystems and lattice-based cryptosystems, which are the main candidates of post-quantum cryptography.