Lecturer:Cheng Chi

Summary:

At the moment, the selection of anti-quantum cryptography standards organized by NIST has entered the third round. Lattice-based key exchange scheme is indispensable among candidate algorithms. Against this background, it is of great significance to evaluate its security in practical application. In this report, we will introduce the key exchange schemes based on lattice difficulties in the third round of selection organized by NIST, and the basic principles of these schemes. On this basis, we will focus on the key multiplexing attack of lattice-based key exchange scheme. The key multiplexing attack will be introduced in detail from the basic principle of the attack, the spending required and the way of attack improvement.

Introduction to the Lecturer:

Cheng Chi, Director of Information Security Department, School of Computer Science, China University of Geosciences (Wuhan), Deputy Director, Associate Professor and Doctoral Supervisor of Hubei Key Laboratory of Intelligent Geo-Information Processing. His main research interests are applied cryptography, especially lattice cryptography theory and its application. He presided over one youth program (completed) and one general program (completed) of the National Natural Science Foundation of China. He was selected into the "Cradle Plan" of China University of Geosciences (Wuhan) in 2014 and the "Scholar of China University of Geosciences" in 2016. He visited Singapore University of Technology and Design as a visiting scholar from June to August 2014; Supported by Japan Society for the Promotion of Science (JSPS), he served as a postdoctoral researcher of JSPS at Kyushu University, from November 2014 to November 2016, with Professor Tsuyoshi Takagi as the co-advisor. Many articles were published in ESORICS 2019, TIFS, TC, JSAC and other important conferences and academic journals at home and abroad. He won the second prize of Natural Science of Chinese Institute of Electronics (CIE), the second prize of Guangxi Natural Science, 2019 IET Premium Awards, etc.

Invited by:

Wang Mingqiang , Professor from School of Mathematics

Time:

10:30-11:30, April 14 (Wednesday)

Venue:

Academic Hall #808, Block B, Zhixin Building, Central Campus

Hosted by the School of Mathematics, Shandong University