Academy of Mathematics and Systems Science, CAS
Colloquia & Seminars

Speaker:	Anyu Wang， Tsinghua University
Inviter:
Title:	Lattice-based cryptosystems in standardisation processes
Language:	Chinese
Time & Venue:	2023.01.10 10:00-11:00 思源楼515
Abstract:	The current widely used public-key cryptosystems are vulnerable to quantum attacks. To prepare for cybersecurity in the quantum era, some projects have been launched to call for post-quantum alternatives. Due to solid security and desirable performance, lattice-based cryptosystems are viewed as promising candidates in the upcoming standardisation of post-quantum cryptography. In this talk, we survey the lattice-based cryptosystems in the post-quantum standardisation processes including the NIST Post-Quantum Cryptography Standardisation and the Chinese Cryptographic Algorithm Design Competition, from both design and security aspects. We present generic design paradigms of lattice-based schemes and describe several representative proposals and recent progress. We also recap some main cryptanalytic results and methods for estimating the concrete security of lattice-based schemes.