Yi Liu (刘逸)

A Ph.D. Candidate in Cryptography

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About Me

I am a Ph.D. candidate at Computer Science Department of The University of Hong Kong (HKU). My research interests cryptography and network security, in particular: secure two-party/multi-party computation, zero-knowledge proofs, timed cryptography, blockchain-related applications, etc.

Education

  • The University of Hong Kong (HKU) Sept. 2018 – Present
  • Southern University of Science and Technology (SUSTech) Sept. 2014 – July 2018
    • B.Eng. in Computer Science and Technology
    • GPA: 3.84/4.00 (Core); 3.70/4.00 (Overall)
    • Thesis: An Evaluation System Based on Blockchain and Linkable Ring Signature. [Slidesopen in new window]
      • Best Thesis Award in the CSE Department, SUSTech.

Publications

  • Towards Practical Homomorphic Time-Lock Puzzles: Applicability and Verifiability

    Yi Liu, Qi Wang, Siu-Ming Yiu

    In European Symposium on Research in Computer Security. ESORICS 2022. [ePrintopen in new window]


  • Making Private Function Evaluation Safer, Faster, and Simpler

    Yi Liu, Qi Wang, Siu-Ming Yiu

    In Public-Key Cryptography. PKC 2022. [ePrintopen in new window]


  • Improved Zero-Knowledge Argument of Encrypted Extended Permutation

    Yi Liu, Qi Wang, Siu-Ming Yiu

    In Information Security and Cryptology. Inscrypt 2021. [ePrintopen in new window]


  • Blind Polynomial Evaluation and Data Trading

    Yi Liu, Qi Wang, Siu-Ming Yiu

    In Applied Cryptography and Network Security. ACNS 2021. [ePrintopen in new window]


  • An Improvement of Multi-Exponentiation with Encrypted Bases Argument: Smaller and Faster

    Yi Liu, Qi Wang, Siu-Ming Yiu

    In Information Security and Cryptology. Inscrypt 2020. [ePrintopen in new window]

Manuscripts

Talks

  • Towards Practical Homomorphic Time-Lock Puzzles: Applicability and Verifiability

    In European Symposium on Research in Computer Security. ESORICS 2022.

    Virtual. Sept. 2022.

  • Making Private Function Evaluation Safer, Faster, and Simpler

    In Public-Key Cryptography. PKC 2022.

    Virtual. March. 2022. [Videoopen in new window]

  • Improved Zero-Knowledge Argument of Encrypted Extended Permutation

    In Information Security and Cryptology. Inscrypt 2021.

    Virtual. Aug. 2021.


  • Blind Polynomial Evaluation and Data Trading

    In Applied Cryptography and Network Security. ACNS 2021.

    Virtual. June 2021.


  • An Improvement of Multi-Exponentiation with Encrypted Bases Argument: Smaller and Faster

    In Information Security and Cryptology. Inscrypt 2020.

    Guangzhou, China. Dec. 2020.

Awards & Honors

  • Best Thesis Award Department of Computer Science and Engineering of SUSTech 2018
  • SUSTech Outstanding Student Scholarship (Third Prize) 2017
  • SUSTech Outstanding Student Scholarship (Second Prize) 2016
  • College Student Start-Up Scholarship 2014 – 2018

Experience

  • Teaching Assistant

    • COMP2119: Introduction to Data Structures and Algorithms (HKU Fall 2021)
    • CS403: Cryptography and Network Security (SUSTech Fall 2019, Fall 2020)
    • COMP7904: Information Security: Attacks and Defense (HKU Spring 2019)
    • CS304: Software Engineering (SUSTech Spring 2017)
    • CS201: Discrete Mathematics (SUSTech Fall 2016)
    • CS302: Operating System (SUSTech Spring 2016)

  • Research Assistant

    • CoCrypto Lab Sept. 2016 – Aug. 2018
      • Adviser: Qi Wang
    • SUSTech Innovation Center for Data Science July 2017 – Aug. 2017
      • Adviser: Rusong Zheng
    • UAV and Sensor Network Lab July 2015 – Sept. 2016
      • Adviser: Qi Hao

Skills

C/C++, Python, LaTeX, Java, HTML/CSS, JavaScript