Chenkai Weng (翁晨凯)

Computer Science Department
Northwestern University
[CV] [Research Statement] [Google Scholar] [DBLP]

About

I'm a fifth year PhD student at Northwestern University. My advisor is Professor Xiao Wang.
My interest lies in Cryptography with a focus on Secure Multi-Party Computation and Zero-Knowledge Proofs.
I'm a recipient of JPMorgan PhD Fellowship.

Publications

  1. Scalable Zero-knowledge Proofs for Non-linear Functions in Machine Learning
    Meng Hao, Hanxiao Chen, Hongwei Li, Chenkai Weng, Yuan Zhang, Haomiao Yang, Tianwei Zhang
    USENIX Security 2024

  2. Privacy-Preserving Regular Expression Matching using TNFA
    Ning Luo, Chenkai Weng, Jaspal Singh, Gefei Tan, Mariana Raykova, Ruzica Piskac
    ESORICS 2024 [eprint (full version)]

  3. ZKSQL: Verifiable and Efficient Query Evaluation with Zero-Knowledge Proofs
    Xiling Li, Chenkai Weng, Yongxin Xu, Xiao Wang, Jennie Rogers
    VLDB 2023 [report] [code]

  4. SUPERPACK: Dishonest Majority MPC with Constant Online Communication
    (*alphabetical order) Daniel Escudero, Vipul Goyal, Antigoni Polychroniadou, Yifan Song, Chenkai Weng
    Eurocrypt 2023 [eprint] [code]

  5. AntMan: Interactive Zero-Knowledge Proofs with Sublinear Communication
    Chenkai Weng, Kang Yang, Zhaomin Yang, Xiang Xie, and Xiao Wang
    CCS 2022 [eprint]

  6. More Efficient Secure Matrix Multiplication for Unbalanced Recommender Systems
    Zhicong Huang, Cheng Hong, Wen-jie Lu, Chenkai Weng, Hunter Qu
    TDSC [link]

  7. Constant-Overhead Zero-Knowledge for RAM Programs
    (*alphabetical order) Olive Franzese, Jonathan Katz, Steve Lu, Rafail Ostrovsky, Xiao Wang, Chenkai Weng
    CCS 2021 [eprint] [code]

  8. Mystique: Efficient Conversions for Zero-Knowledge Proofs with Applications to Machine Learning
    Chenkai Weng, Kang Yang, Xiang Xie, Jonathan Katz, Xiao Wang
    USENIX Security 2021 [eprint] [code] [video]

  9. QuickSilver: Efficient and Affordable Zero-Knowledge Proofs for Circuits and Polynomials over Any Field
    Kang Yang, Pratik Sarkar, Chenkai Weng, Xiao Wang
    CCS 2021 (Best Paper Award runner-up) [eprint] [code] [video]

  10. Wolverine: Fast, Scalable, and Communication-Efficient Zero-Knowledge Proofs for Boolean and Arithmetic Circuits
    Chenkai Weng, Kang Yang, Jonathan Katz, Xiao Wang
    S&P 2021 [eprint] [preview] [full video]

  11. Developing High Performance Secure Multi-Party Computation Protocols in Healthcare: A Case Study of Patient Risk Stratification
    Xiao Dong, David Randolph, Chenkai Weng, Abel Kho, Jennie Rogers, Xiao Wang
    AMIA 2021 Informatics Summit [report]

  12. Ferret: Fast Extension for coRRElated oT with small communication
    Kang Yang, Chenkai Weng, Xiao Lan, Jiang Zhang, Xiao Wang
    CCS 2020 [eprint] [code] [video]

  13. Better Concrete Security for Half-Gates Garbling (in the Multi-Instance Setting)
    (*alphabetical order) Chun Guo, Jonathan Katz, Xiao Wang, Chenkai Weng, Yu Yu
    CRYPTO 2020 [eprint] [video]

Manuscripts

  1. Precio: Private Aggregate Measurement via Oblivious Shuffling
    F. Betül Durak, Chenkai Weng, Erik Anderson, Kim Laine, Melissa Chase
    [eprint]

  2. An Efficient ZK Compiler from SIMD Circuits to General Circuits
    Dung Bui, Haotian Chu, Geoffroy Couteau, Xiao Wang, Chenkai Weng, Kang Yang, Yu Yu
    [eprint]

Invited Talks

  1. SUPERPACK: Dishonest Majority MPC with Constant Online Communication
    -- Eurocrypt 2023 link
    -- NYU Crypto reading group link
    -- UPenn Security Seminar
    -- CMU Cylab Crypto Seminar link video

  2. Efficient and Scalable Zero-Knowledge Proofs Based on Vector Oblivious Linear evaluation
    -- Security and privacy seminar at Duke Univeristy link
    -- CS talk at Yale University link
    -- JPMorgan AlgoCRYPT Seminar


Contact Me

Address: 3124 Seeley Mudd, 2233 Tech Dr, Evanston, IL, 60208

Email: ckweng@u.northwestern.edu