2021

  • Practical Post-Quantum Few-Time Verifiable Random Function with Applications to Algorand
    • Muhammed F. Esgin and Veronika Kuchta and Amin Sakzad and Ron Steinfeld and Zhenfei Zhang and Shifeng Sun and Shumo Chu
    • Financial Cryptography 2021. IACR eprint. Source code.

2020

  • Manta: Privacy Preserving Decentralized Exchange
    • Shumo Chu, Qiudong Xia, Zhenfei Zhang
    • Pre-print. IACR eprint.
  • ZEN: Efficient Zero-Knowledge Proofs for Neural Networks
    • Boyuan Feng, Lianke Qin, Zhenfei Zhang, Yufei Ding, Shumo Chu
    • Pre-print.
  • Pointproofs: Aggregating Proofs for Multiple Vector Commitments
  • MPSign: A Signature from Small-Secret Middle-Product Learning with Errors
    • Shi Bai, Dipayan Das, Ryo Hiromasa, Miruna Rosca, Amin Sakzad, Damien Stehle, Ron Steinfeld, Zhenfei Zhang
    • PKC 2020. IACR eprint. Source code
  • Modular Lattice Signatures, revisited
    • Dipayan Das, Jeffrey Hoffstein, Jill Pipher, William Whyte, Zhenfei Zhang
    • Design, Codes and Cryptography. IACR eprint. Source code.
    • 1st round, NIST post-quantum cryptography standardization process.
  • BLS Signatures

2019

  • Middle-Product Learning with Rounding Problem and its Applications
    • Shi Bai, Katharina Boudgoust, Dipayan Das, Adeline Roux-Langlois, Weiqiang Wen, Zhenfei Zhang
    • Asiacrypt 2019. IACR eprint.
  • Efficient Lattice-Based Zero-Knowledge Arguments with Standard Soundness: Construction and Applications
    • Rupeng Yang, Man Ho Au, Zhenfei Zhang, Qiuliang Xu, Zuoxia Yu, William Whyte
    • Crypto 2019. IACR eprint.
  • (Linkable) Ring Signature from Hash-Then-One-Way Signature
    • Xingye Lu, Man Ho Au, Zhenfei Zhang
    • TrustCom 2019. IACR eprint.
  • Ring Signatures based on Middle-Product Learning with Errors Problems
    • Dipayan Das, Man Ho Au, Zhenfei Zhang
    • Africacrypt 2019.
  • Raptor: A Practical Lattice-Based (Linkable) Ring Signature
  • Round5: Compact and Fast Post-Quantum Public-Key Encryption
    • Hayo Baan, Sauvik Bhattacharya, Scott Fluhrer, Oscar Garcia-Morchon, Thijs Laarhoven, Ronald Rietman, Markku-Juhani O. Saarinen, Ludo Tolhuizen, Zhenfei Zhang
    • PQCrypto 2019. IACR eprint. Website.
    • 2nd round, NIST post-quantum cryptography standardization process.
  • Cryptanalysis of an NTRU-based Proxy Encryption Scheme from ASIACCS’15
    • Zhen Liu, Yanbin Pan, Zhenfei Zhang
    • PQCrypto 2019. IACR eprint.

2018

  • LAC: Practical Ring-LWE Based Public-Key Encryption with Byte-Level Modulus
  • Shorter Messages and Faster Post-Quantum Encryption with Round5 on Cortex M
    • Markku-Juhani O. Saarinen, Sauvik Bhattacharya, Oscar Garcia-Morchon, Ronald Rietman, Ludo Tolhuizen, Zhenfei Zhang
    • Cardis 2018. IACR eprint.
  • On the Hardness of the Computational Ring-LWR Problem and its Applications
    • Long Chen, Zhenfeng Zhang, Zhenfei Zhang
    • Asiacrypt 2018. IACR eprint.
  • A signature scheme from the finite field isomorphism problem.
  • Practical Signatures from the Partial Fourier Recovery Problem Revisited: A Provably-Secure and Gaussian-Distributed Construction.
    • Xingye Lu, Zhenfei Zhang, Man Ho Au
    • ACISP 2018. Manuscript.
  • Optimizing polynomial convolution for NTRUEncrypt.
  • Fully Homomorphic Encryption from the Finite Field Isomorphism Problem.
    • Yarkin Doröz, Jeffrey Hoffstein, Jill Pipher, Joseph H. Silverman, Berk Sunar, William Whyte, Zhenfei Zhang:
    • PKC 2018. IACR eprint.

2017

  • Choosing parameters for NTRUEncrypt
    • Jeffrey Hoffstein, Jill Pipher, John M. Schanck, Joseph H. Silverman, William Whyte, Zhenfei Zhang
    • CT-RSA 2017. IACR eprint.
  • Round2: KEM and PKE based on GLWR.
    • Hayo Baan, Sauvik Bhattacharya, Óscar García-Morchón, Ronald Rietman, Ludo Tolhuizen, Jose Luis Torre-Arce, Zhenfei Zhang
    • NIST PQC submission. IACR eprint.
  • A signature scheme from Learning with Truncation.
    • Jeffrey Hoffstein, Jill Pipher, William Whyte, Zhenfei Zhang
    • Pre-print. IACR eprint.
  • Anonymous Announcement System (AAS) for Electric Vehicle in VANETs.
    • Man Ho Au, Joseph K. Liu, Zhenfei Zhang, Willy Susilo, Jin Li
    • The Computer Journal. Manuscript.

2016

  • Circuit-extension handshakes for Tor achieving forward secrecy in a quantum world.
  • NTRU modular lattice signature scheme on CUDA GPUs.
    • Wei Dai, Berk Sunar, John M. Schanck, William Whyte, Zhenfei Zhang
    • HPCS 2016. IACR eprint.

2015 and earlier

  • LLL for ideal lattices: re-evaluation of the security of Gentry-Halevi’s FHE scheme.
    • Thomas Plantard, Willy Susilo, Zhenfei Zhang
    • Design, Codes and Cryptography. Manuscript.
  • DA-Encrypt: Homomorphic Encryption via Non-Archimedean Diophantine Approximation.
    • Jeffrey Hoffstein, Jill Pipher, John M. Schanck, Joseph H. Silverman, William Whyte, Zhenfei Zhang
    • Pre-print. IACR eprint.
  • Fully Homomorphic Encryption Using Hidden Ideal Lattice.
    • Thomas Plantard, Willy Susilo, Zhenfei Zhang
    • IEEE Transation on Information Forensics and Security. Manuscript.
  • Adaptive Precision Floating Point LLL.
    • Thomas Plantard, Willy Susilo, Zhenfei Zhang
    • ACISP 2013. Manuscript.
  • On the CCA-1 Security of Somewhat Homomorphic Encryption over the Integers.
    • Zhenfei Zhang, Thomas Plantard, Willy Susilo
    • ISPEC 2012. Manuscript.
  • Lattice Reduction for Modular Knapsack.
    • Thomas Plantard, Willy Susilo, Zhenfei Zhang
    • SAC 2012. Manuscript.
  • Reaction Attack on Outsourced Computing with Fully Homomorphic Encryption Schemes.
    • Zhenfei Zhang, Thomas Plantard, Willy Susilo
    • ICISC 2011. Manuscript.