中文 ｜ English

BI Lei

Hi! I am a Postdoc in the Institute of Information Engineering, Chinese Academy of Sciences, working with Prof. Xianhui Lu.

Research Interest

Concrete security of LWE

Experience

• 2022.8 - now   Postdoc
  • Institute of Information Engineering, Chinese Academy of Sciences
  • supervisor: Xianhui Lu

Education

• 2017.9 - 2022.6   Ph.D. of Cyber Security
  • University of Chinese Academy of Sciences
  • Supervisor: Kunpeng Wang, Xianhui Lu
• 2014.9 - 2017.6   Master of Computer Technology
  • University of Chinese Academy of Sciences
  • Supervisor: Kunpeng Wang
• 2009.9 - 2013.6   Bachelor of Information and Computing Science
  • Chengdu University of Technology

Publication

• Memory-Efficient BKW Algorithm for Solving the LWE problem
  • Yu Wei, Lei Bi, Kunpeng Wang, Xianhui Lu
  • PKC 2025
• An Improved BKW Algorithm on the Learning with Rounding Problem
  • Yu Wei, Lei Bi, Kunpeng Wang, Xianhui Lu
  • Cybersecurity 2024
• Polar Code-based Secure Transmission with Higher Message Rate Combing Channel Entropy and Computational Entropy
  • Chen An, Mengjie Huang, Xianhui Lu, Lei Bi, Wejie Li
  • Cybersecurity 2024
• An Improved BKW Algorithm for Solving LWE with Small Secrets
  • Yu Wei, Lei Bi, Kunpeng Wang, Xianhui Lu
  • ISC 2023
• Security Estimation of LWE via BKW Algorithms
  • Yu Wei, Lei Bi, Xianhui Lu, Kunpeng Wang
  • Cybersecurity 2023
• Hybrid Dual and Meet-LWE Attack
  • Lei Bi, Xianhui Lu, Junjie Luo, Kunpeng Wang
  • ACISP 2022
  • Slides
• Hybrid Dual Attack on LWE with Arbitrary Secrets
  • Lei Bi, Xianhui Lu, Junjie Luo, Kunpeng Wang, Zhenfei Zhang
  • Cybersecurity 2022
  • Estimator
• Dual Attack with Side Information (in Chinese)
  • Lei Bi, Xianhui Lu, Junjie Luo, Kunpeng Wang
  • Journal of Cyber Security 2021
• Research Status and Development Trend of Lattice Sieving (in Chinese)
  • Lei Bi, Xianhui Lu, Kunpeng Wang
  • Journal of Cryptologic Research 2021
• Predicting the Concrete Security of LWE against the Dual Attack Using Binary Search
  • Shuaigang Li, Xianhui Lu, Jiang Zhang, Bao Li, Lei Bi
  • ICICS 2021
• Programmable Bootstrapping via Compact Isomorphic Mapping (in Chinese)
  • Qinju Liu, Xianhui Lu, Kunpeng Wang, Lei Bi
  • Journal of Cyber Security 2021
• A Survey on the Analysis of the Concrete Hardnes of LWE (in Chinese)
  • Lei Bi, Shuaigang Li, Yamin Liu, Jiang Zhang, Shuqin Fan
  • Journal of Cyber Security 2019

Contact

• Email bilei121@outlook.com
• ORCID 0000-0003-0760-3149