Hi, there. I’m Vincent Hwang (黃柏文). I’m currently a PhD student supervised by Peter Schwabe (樂岩) at Max Planck Institute for Security and Privacy. Before joining the PhD program in January 2023, I obtained my master’s degree under the supervision of Yen-Huan Li (李彥寰) in June 2022. I mostly worked with Bo-Yin Yang (楊柏因). In particular, I was (and am) focusing on implementing number-theoretic transforms used in the lattice-based cryptosystems Dilithium, Kyber, NTRU, NTRU Prime, and Saber. My master thesis focuses on the following platforms:

• Cortex-M3:
  • Saber
• Cortex-M4:
  • NTRU
  • NTRU Prime
  • Saber
• Cortex-A72:
  • Dilithium
  • Kyber
  • Saber

You can find the details of the master thesis here.

While I was an undergraduate student (Sept. 2016 – Jun. 2021), I spent most of the time on Theoretical Computer Science, in particular, graph algorithms and generalizations of sorting problems.

Curriculum Vitae

• CV (version 2024-04-08)

Contact

• Email: vincentvbh7 at gmail dot com

Research Interests

• Assembly programming with Armv7-M, Armv7E-M, Armv8-A, AVX2
• Integer and polynomial multiplications
• Algorithmic partial order problems
• Graph algorithms

Programming Skills

• Assembly (Armv7-M, Armv7E-M, Armv8-A, AVX2, very familiar), C (very familiar), C++ (somewhat familiar), Haskell (some experience)

Service

• 2024:
  • Reviewer of Crypto 2024
• 2023:
  • Artifact Review Committee Member of CHES 2023

Publications

• Google Scholar
• DBLP
• 2024:
  • Pushing the Limit of Vectorized Polynomial Multiplication for NTRU Prime
    • Vincent Hwang
    • To Appear at Australasian Conference for Security and Privacy (ACISP 2024)
    • ePrint code
  • Algorithmic Views of Vectorized Polynomial Multipliers – NTRU Prime
    • Vincent Hwang, Chi-Ting Liu, and Bo-Yin Yang
    • Applied Cryptography and Network Security (ACNS 2024)
    • paper slide code ePrint
• 2023:
  • Algorithmic Views of Vectorized Polynomial Multipliers – NTRU
    • Han-Ting Chen, Yi-Hua Chung, Vincent Hwang, and Bo-Yin Yang
    • International Conference on Cryptology in India (INDOCRYPT 2023)
    • paper slide code ePrint
• 2022:
  • Verified NTT Multiplications for NISTPQC KEM Lattice Finalists: Kyber, SABER, and NTRU
    • Vincent Hwang, Jiaxiang Liu, Gregor Seiler, Xiaomu Shi, Ming-Hsien Tsai, Bow-Yaw Wang, and Bo-Yin Yang
    • IACR Transactions on Cryptographic Hardware and Embedded Systems (TCHES 2022)
    • paper talk by Bo-Yin Yang slide code
  • Multi-Parameter Support with NTTs for NTRU and NTRU Prime on Cortex-M4
    • Erdem Alkim, Vincent Hwang, and Bo-Yin Yang
    • IACR Transactions on Cryptographic Hardware and Embedded Systems (TCHES 2022)
    • paper talk by myself slide code ePrint
  • Efficient Multiplication of Somewhat Small Integers using Number-Theoretic Transforms (Best Paper Award)
    • Hanno Becker, Vincent Hwang, Matthias J. Kannwischer, Lorenz Panny, and Bo-Yin Yang
    • International Workshop on Security (IWSEC 2022)
    • paper slide code ePrint
  • Faster Kyber and Dilithium on the Cortex-M4
    • Amin Abdulrahman, Vincent Hwang, Matthias J. Kannwischer, and Daan Sprenkels
    • Applied Cryptography and Network Security (ACNS 2022)
    • paper code ePrint
  • Neon NTT: Faster Dilithium, Kyber, and Saber on Cortex-A72 and Apple M1
    • Hanno Becker, Vincent Hwang, Matthias J. Kannwischer, Bo-Yin Yang, and Shang-Yi Yang
    • IACR Transactions on Cryptographic Hardware and Embedded Systems (TCHES 2022)
    • paper talk by Hanno Becker slide code ePrint
  • Multi-moduli NTTs for Saber on Cortex-M3 and Cortex-M4
    • Amin Abdulrahman, Jiun-Peng Chen, Yu-Jia Chen, Vincent Hwang, Matthias J. Kannwischer, and Bo-Yin Yang
    • IACR Transactions on Cryptographic Hardware and Embedded Systems (TCHES 2022)
    • paper talk by myself slide slide (updated) code ePrint
• 2021:
  • NTT Multiplication for NTT-unfriendly Rings
    • Chi-Ming Marvin Chung, Vincent Hwang, Matthias J. Kannwischer, Gregor Seiler, Cheng-Jhih Shih, and Bo-Yin Yang
    • IACR Transactions on Cryptographic Hardware and Embedded Systems (TCHES 2021)
    • paper talk slide code ePrint
  • Polynomial Multiplication in NTRU Prime
    • Erdem Alkim, Dean Yun-Li Cheng, Chi-Ming Marvin Chung, Hülya Evkan, Leo Wei-Lun Huang, Vincent Hwang, Ching-Lin Trista Li, Ruben Niederhagen, Cheng-Jhih Shih, Julian Wälde, and Bo-Yin Yang
    • IACR Transactions on Cryptographic Hardware and Embedded Systems (TCHES 2021)
    • paper talk slide code ePrint

Technical Reports

• IACR ePrint
• 2024:
  • Formal Verification of Emulated Floating-Point Arithmetic in Falcon
    • Vincent Hwang
    • IACR ePrint
    • paper
• 2023:
  • SoK: Polynomial Multiplications for Lattice-Based Cryptosystems
    • Vincent Hwang
    • IACR ePrint
    • paper code
  • Barrett Multiplication for Dilithium on Embedded Devices
    • Vincent Hwang, YoungBeom Kim, and Seog Chung Seo
    • IACR ePrint
    • paper code
  • Algorithmic Views of Vectorized Polynomial Multipliers for NTRU and NTRU Prime (Long Paper)
    • Han-Ting Chen, Yi-Hua Chung, Vincent Hwang, Chi-Ting Liu, and Bo-Yin Yang
    • IACR ePrint
    • paper
    • This paper was split into the following papers:
      • Algorithmic Views of Vectorized Polynomial Multipliers – NTRU
      • Algorithmic Views of Vectorized Polynomial Multipliers – NTRU Prime