Welcome to CryptoPlus!

We are a group of people passionate about cryptography and its rich connections with various fields, including computational complexity, algorithm design, quantum computing, system/network security, and more. Modern cryptography serves as a fascinating nexus between these areas, offering a dynamic space for exploration.

At CryptoPlus, we start our journey in the "hometown" of cryptography, but our odyssey is not solely about advancing the field — we view cryptography not only as a discipline but also as a playground to engage with a diverse set of technical tools from mathematics, computer science, and even physics. These tools, while varied, share a common characteristic: they exemplify scientific curiosity and creativity. It is this characteristic that motivates our passion and fosters the intellectually stimulating environment in our lab. We aspire to contribute our own share to the ongoing development of creative ideas, producing research that not only advances cryptography but also extends into other areas, initially through the lens of cryptographic thinking but eventually beyond — a vision that is reflected in our name: CryptoPlus!

Members


Faculty Member: Ph.D. Students:
  • Ziqing GUO (08/2025 - Present)
    B.Eng. and M.Eng. from Huazhong University of Science and Technology
  • Chenya SUN (08/2025 - Present)
    B.Eng. from Beihang University
  • Wenhui ZHANG, (08/2025 - Present)
    B.Eng. from Hunan University
Undergraduate Students:
  • Zhaoyunxiang HUANG (CUHK), 04/2025 - Present
  • Chak Fai YUNG (CUHK), 10/2024 - Present
Master Students:
  • Arriving soon ...

Visitors


Long-Term Visitors:
  • Rohit CHATTERJEE (National University of Singapore), 08/2025
  • Yuhao TANG (Stony Brook University), 12/2024
Short-Term Visitors:

Seminars


2025-08-12 Recent Advances in Adaptively Secure Threshold Signatures
[Video: YouTube, bilibili]     Speaker: Yanbo CHEN (University of Ottawa)
2025-08-11 Are Uncloneable Proof and Advice States Strictly Necessary?
[Video: YouTube, bilibili]     Speaker: Rohit CHATTERJEE (National University of Singapore)
2025-02-18 Constructing Low-depth Pseudorandom Functions from LPN
[Video: YouTube, bilibili]     Speaker: Youlong DING (Hebrew University of Jerusalem)
2024-11-12 Instance-Hiding Interactive Proofs
[Video: YouTube, bilibili]     Speaker: Changrui MU (National University of Singapore)

Publications   (In accordance with the tradition of theoretical computer science, authors are listed in alphabetical order)


  1. Round-Efficient Composable Two-Party Quantum Computation
    Vipul Goyal, Xiao Liang, Omkant Pandey, Yuhao Tang, Takashi Yamakawa
    Asiacrypt 2025    
  2. Almost-Total Puzzles and Their Applications
    Xiao Liang, Omkant Pandey, Yuhao Tang, Takashi Yamakawa
    Asiacrypt 2025     [PDF]
  3. The Round Complexity of Black-Box Post-Quantum Secure Computation
    Rohit Chatterjee, Xiao Liang, Omkant Pandey, Takashi Yamakawa
    Crypto 2025     [PDF]
  4. The Black-Box Simulation Barrier Persists in a Fully Quantum World
    Nai-Hui Chia, Kai-Min Chung, Xiao Liang, Jiahui Liu
    Manuscript 2024     [PDF]