Chenkai Weng

翁晨凯

About

I'm a third year PhD student at Computer Science Department of Northwestern University. My interest lies in Cryptography with a focus on Secure Multi-Party Computation and Zero-Knowledge Proofs. My advisor is Xiao Wang.

I received my Bechelor degree from Xidian University in 2019.

[CV]

Experience

2021 - Research intern of Cryptography group, Microsoft Research (Mentor: Melissa Chase).

2018 - Intern of Gemini Lab, Alibaba Group (Mentor: Cheng Hong).

2017 - Study on Searchable Encryption and Secure Data Deduplication (Mentor: Jianfeng Wang).

Publication

  1. More Efficient Secure Matrix Multiplication for Unbalanced Recommender Systems
    Zhicong Huang, Cheng Hong, Wen-jie Lu, Chenkai Weng, Hunter Qu
    IEEE Transactions on Dependable and Secure Computing (TDSC) [link]

  2. Constant-Overhead Zero-Knowledge for RAM Programs
    Nicholas Franzese, Jonathan Katz, Steve Lu, Rafail Ostrovsky, Xiao Wang, Chenkai Weng
    ACM Conference on Computer and Communications Security (CCS), 2021 [eprint]

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

  4. QuickSilver: Efficient and Affordable Zero-Knowledge Proofs for Circuits and Polynomials over Any Field
    Kang Yang, Pratik Sarkar, Chenkai Weng, Xiao Wang
    ACM Conference on Computer and Communications Security (CCS), 2021 [eprint]

  5. Wolverine: Fast, Scalable, and Communication-Efficient Zero-Knowledge Proofs for Boolean and Arithmetic Circuits
    Chenkai Weng, Kang Yang, Jonathan Katz, Xiao Wang
    IEEE Security & privacy (Oakland), 2021 [eprint]

  6. 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

  7. Ferret: Fast Extension for coRRElated oT with small communication
    Kang Yang, Chenkai Weng, Xiao Lan, Jiang Zhang, Xiao Wang
    ACM Conference on Computer and Communications Security (CCS), 2020 [eprint]

  8. Better Concrete Security for Half-Gates Garbling (in the Multi-Instance Setting)
    Chun Guo, Jonathan Katz, Xiao Wang, Chenkai Weng, Yu Yu
    International Cryptology Conference (CRYPTO), 2020 [eprint]

Talks

Nov. 2021 - "QuickSilver: Efficient and Affordable Zero-Knowledge Proofs for Circuits and Polynomials over Any Field", CCS 2021. link (video)

Aug. 2021 - "Mystique: Efficient Conversions for Zero-Knowledge Proofs with Applications to Machine Learning", USENIX Security 2021. link (video)

May. 2021 - "Wolverine: Fast, Scalable, and Communication-Efficient Zero-Knowledge Proofs for Boolean and Arithmetic Circuits", IEEE S&P (Oakland) 2021. talk preview full video

Mar. 2021 - "Fast, Scalable, and Communication-Efficient Zero-Knowledge Proofs", Security and privacy seminar at Duke Univeristy. link

Nov. 2020 - "Ferret: Fast Extension for coRRElated oT with small communication", CCS 2020. video

Aug. 2020 - "Better Concrete Security for Half-Gates Garbling (in the Multi-Instance Setting)", CRYPTO 2020. slide, video


Contact Me

Address: 3120 Seeley Mudd, 2233 Tech Dr, Evanston, IL, 60208

Email: ckweng at u dot northwestern dot edu