Cryptography Britpop Football Snooker Whisky

Yijian易简
Liu刘

PhD candidate in lattice cryptography.

icarid.liu@gmail.com

01 / Research

Research Interests.

(01)

Look from above

Step back to see the whole design space: first principles, comparable trade-offs, and the best design points.

(02)

Exploit all the things

Use every geometric and algebraic structure — for efficient constructions and for stronger attacks.

(03)

Keep pace with the times

Bring AI into cryptographic discovery, while using cryptography to protect intelligent systems.

Institute of Information Engineering, CAS

02 / Selected work

Publications

01

Asiacrypt 2026

How Compact Can NTRU Encryption Be?

Heuristic frontiers and practical schemes.

Yijian Liu · Yu Zhang · Xianhui Lu · Yao Cheng · Yongjian Yin

02

ICML 2026

AICrypto

Evaluating cryptography capabilities of large language models.

Yu Wang* · Yijian Liu* · Liheng Ji* · Han Luo* · Wenjie Li* · Xiaofei Zhou · Chiyun Feng · Puji Wang · Yuhan Cao · Geyuan Zhang · Xiaojian Li · Rongwu Xu · Yilei Chen · Tianxing He

03

Eurocrypt 2026

TalonG

Bandwidth-efficient two-round threshold signatures from lattices.

Liming Gao · Guofeng Tang · Dingding Jia · Yijian Liu · Bingqian Liu · Xianhui Lu · Kunpeng Wang · Yongjian Yin

04

USENIX Security 2026

Streaming Function Secret Sharing

And its applications.

Xiangfu Song · Jianli Bai · Ye Dong · Yijian Liu · Yu Zhang · Xianhui Lu · Tianwei Zhang

05

Asiacrypt 2025

DAWN

Smaller and faster NTRU encryption via double encoding.

Yijian Liu · Yu Zhang · Xianhui Lu · Yao Cheng · Yongjian Yin
More in the record

FSE 2025: LEAP: High-Performance Lattice-Based Pseudorandom Number Generator.

ACISP 2025: Fiat-Shamir with Rejection and Rotation; Refined Error Management for Gate Bootstrapping.

AsiaCCS 2024: Physical-Layer Public Key Encryption Through Massive MIMO.

DCC 2023: An improved method for predicting truncated multiple recursive generators with unknown parameters.

ePrint: Thorns in Polynomial Convolution; A Primer on Dependency in Polynomial Product; Bootstrapping over Free R-Module.

03 / Path so far

Waypoints.

2022 — now

PhD Candidate, Lattice-based Cryptography

Institute of Information Engineering, Chinese Academy of Sciences · Advisor: Xianhui Lu

2021 — 2022

Research Intern, Privacy Computing

Alibaba Gemini Lab (now CP Lab , Ant Research) · Mentor: Cheng Hong

2018 — 2022

B.Eng., Information Security

Beijing University of Posts and Telecommunications · Mentor: Jingguo Bi

Retired CTFer

Feel free to discuss anything interesting in cryptography with me, especially lattice-based cryptography.