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Chitchanok Chuengsatiansup

Senior Lecturer
The University of Melbourne, Australia

c [dot] chuengsatiansup [at] unimelb [dot] edu [dot] au


Research Interests
Event Organizations
PC Memberships
Grants & Funding
Honors & Awards
Language Skills

I am a Senior Lecturer and a member of the Security Research Group at the School of Computing and Information Systems, The University of Melbourne, Australia.

Before that, I was:


  • Ph.D. thesis: Optimizing Curve-Based Cryptography [PDF]
    supervised by Daniel J. Bernstein and Tanja Lange, Technische Universiteit Eindhoven, The Netherlands

  • Master's thesis: Improved Elliptic Curve Arithmetic by Reordering Operation Sequences (演算順序変更による楕円曲線算術の改善) [PDF]
    supervised by Hiroshi Imai, The University of Tokyo, Japan


Research interests

  • Elliptic- and Hyperelliptic-Curve Cryptography
  • Post-Quantum Cryptography
  • Side-Channel Analysis
  • Security and Privacy
  • Secure Messaging
  • Factorization



  • Joel Küpper, PhD student (joined 2020.04)
  • Rui Qi Sim, Master's student (joined 2020.07)
  • Zhiyuan Zhang, PhD student (joined 2021.03)
  • William Kosasih, Master's student (joined 2021.07)
  • Mingtian Tao, Master's student (joined 2021.08)
  • Bradley Morgan, PhD student (joined 2023.02)



  • CryptOpt: Verified Compilation with Randomized Program Search for Cryptographic Primitives
    Joel Küpper, Andres Erbsen, Jason Gross, Owen Conoly, Chuyue Sun, Samuel Tian, David Wu, Adam Chlipala, Chitchanok Chuengsatiansup, Daniel Genkin, Markus Wagner and Yuval Yarom. PLDI 2023 (to appear).

  • BunnyHop: Exploiting the Instruction Prefetcher
    Zhiyuan Zhang, Mingtian Tao, Sioli O'Connell, Chitchanok Chuengsatiansup, Daniel Genkin, and Yuval Yarom. USENIX Security 2023 (to appear).

  • USLH: Taking Speculative Load Hardening to the Next Level
    Zhiyuan Zhang, Gilles Barthe, Chitchanok Chuengsatiansup, Peter Schwabe, and Yuval Yarom. USENIX Security 2023 (to appear).

  • The Gates of Time: Improving Cache Attacks with Transient Execution
    Daniel Katzman, William Kosasih, Chitchanok Chuengsatiansup, Eyal Ronen, and Yuval Yarom. USENIX Security 2023 (to appear).

  • Spectre Declassified: Reading from the Right Place at the Wrong Time [PDF]
    Basavesh Ammanaghatta Shivakumar, Jack Barnes, Gilles Barthe, Sunjay Cauligi, Chitchanok Chuengsatiansup, Daniel Genkin, Sioli O’Connell, Peter Schwabe, Rui Qi Sim, and Yuval Yarom. IEEE S&P 2023 (to appear).

  • Row, Row, Row Your Boat: How to Not Find Weak Keys in Pilsung [PDF]
    Chitchanok Chuengsatiansup, Eyal Ronen, Gregory G. Rose, and Yuval Yarom. The Computer Journal 2022.

  • Opportunities for Genetic Improvement of Cryptograhpic Code [PDF]
    Chitchanok Chuengsatiansup, Markus Wagner, and Yuval Yarom. GI@GECCO 2022.

  • RSA Key Recovery from Digit Equivalence Information [PDF]
    Chitchanok Chuengsatiansup, Andrew Feutrill, Rui Qi Sim, and Yuval Yarom. ACNS 2022.

  • Side-Channeling the Kalyna Key Expansion [PDF]
    Chitchanok Chuengsatiansup, Daniel Genkin, Yuval Yarom, and Zhiyuan Zhang. CT-RSA 2022.

  • Row, Row, Row Your Boat: How to Not Find Weak Keys in Pilsung [PDF]
    Chitchanok Chuengsatiansup, Eyal Ronen, Gregory G. Rose, and Yuval Yarom. CFAIL 2021.

  • ModFalcon: compact signatures based on module NTRU lattices [PDF]
    Chitchanok Chuengsatiansup, Thomas Prest, Damien Stehlé, Alexandre Wallet, and Keita Xagawa. AsiaCCS 2020.

  • Towards Practical GGM-Based PRF from (Module-)Learning-with-Rounding [PDF]
    Chitchanok Chuengsatiansup and Damien Stehlé. SAC 2019.

  • Pairing-Friendly Twisted Hessian Curves [PDF]
    Chitchanok Chuengsatiansup and Chloe Martindale. Indocrypt 2018.

  • NTRU Prime: reducing attack surface at low cost [PDF]
    Daniel J. Bernstein, Chitchanok Chuengsatiansup, Tanja Lange, and Christine van Vredendaal. SAC 2017.

  • How to manipulate curve standards: a white paper for the black hat [PDF]
    Daniel J. Bernstein, Tung Chou, Chitchanok Chuengsatiansup, Andreas Hülsing, Eran Lambooij, Tanja Lange, Ruben Niederhagen, and Christine van Vredendaal. SSR 2015.

  • Twisted Hessian curves [PDF]
    Daniel J. Bernstein, Chitchanok Chuengsatiansup, David Kohel, and Tanja Lange. Latincrypt 2015.

  • Kummer strikes back: new DH speed records [PDF]
    Daniel J. Bernstein, Chitchanok Chuengsatiansup, Tanja Lange, and Peter Schwabe. Asiacrypt 2014.

  • Curve41417: Karatsuba revisited [PDF]
    Daniel J. Bernstein, Chitchanok Chuengsatiansup, and Tanja Lange. CHES 2014.

  • PandA: Pairings and Arithmetic [PDF]
    Chitchanok Chuengsatiansup, Michael Naehrig, Pance Ribarski, and Peter Schwabe. Pairing 2013.

  • Faster Elliptic Curve Arithmetic for Double-Base Chain by Reordering Sequences of Field Operations [PDF]
    Chitchanok Chuengsatiansup. ISITA 2012.

  • Evaluating Optimized Computation in Double-Base Chain for Efficient Elliptic Curve Cryptography [PDF]
    Chitchanok Chuengsatiansup, Hiroshi Imai, and Vorapong Suppakitpaisarn. WAAC 2012.


Technical reports and preprints

  • Double-base scalar multiplication revisited [PDF]
    Daniel J. Bernstein, Chitchanok Chuengsatiansup, and Tanja Lange.

  • NTRU Prime [PDF]
    Daniel J. Bernstein, Chitchanok Chuengsatiansup, Tanja Lange, and Christine van Vredendaal

  • Efficient Atomic Block for Faster Elliptic Curve Scalar Multiplication [PDF]
    Chitchanok Chuengsatiansup. Technical Report of IEICE, vol.112, no.93, pp.71-78, Jun.2012.

  • How to Write Award-Winning Papers: Mining Award-Winning Paper Characteristics [PDF]
    Chitchanok Chuengsatiansup. TJIA 2011.



  • A Primer on Cache Attacks [PDF]
    Summer School on Real-World Crypto and Privacy 2022 (invited talk)

  • Optimizing Lattice-Based Cryptoraphy [PDF]
    Workshop on Design and Evaluation of New-Generation Cryptography 2021 (invited talk)

  • Pairing-Friendly Twisted Hessian Curves [PDF]
    Indocrypt 2018

  • Fast arithmetic on Hessian curves [PDF]
    ECC 2016 (invited talk)

  • Fast and secure DH implementation [PDF]
    CrossFyre 2016

  • Pond - a non-instant messaging protocol by Adam Langley [PDF]
    Privacy and Surveillance Seminar, UC Davis, USA

  • New Diffie-Hellman Speed Records [PDF]
    Crypto Working Group meeting, Utrecht, The Netherlands

  • Kummer strikes back: new DH speed records [PDF]
    Asiacrypt 2014

  • Curve41417: Karatsuba Revisited [PDF]
    CHES 2014

  • Faster Point Doubling on Twisted Hessian Curves [PDF]
    Latincrypt 2014 (student presentation)



  • CryptOpt: a cryptographic code optimizer

  • AssemblyLine: a machine-code generator without invoking compilers


Event organizations

  • IACR School on Applied Cryptography 2023 [website], The Organizer
    January 30 - February 3, 2023, Bangkok, Thailand

  • SSS2 2023 [website], Co-organizer
    January 23-25, 2023, Adelaide, Australia

  • AISC 2022 [website], Publicity Chair
    February 14-18, 2022, (virtual)

  • CHES 2020 [website], General Co-chair
    September 14-17, 2020, Beijing, China (virtual)

  • TJIA 2011 [website], Sponsor Affair
    November 26, 2011, Tokyo, Japan


Program committee members


Grants and funding

  • Defence Innovation Partnership Collaborative Research Funding, 2023 [website]
    Chitchanok Chuensgatiansup, Withawat Withayachumnankul, and Yuval Yarom

  • Australian Research Council Discovery Projects, 2021-2023 [website]
    Yuval Yarom, Markus Wagner, Jason Xue, and Chitchanok Chuengsatiansup

  • Google Research Scholar, 2021 [website]
    Chitchanok Chuengsatiansup and Markus Wagner

  • ECMS faculty COVID recognition fund, The University of Adelaide, 2021
    Chitchanok Chuengsatiansup

  • ECMS faculty seed fund, The University of Adelaide, 2021
    Chitchanok Chuengsatiansup, and Yuval Yarom

  • Blavatnik Interdisciplinary Cyber Research Center, 2020 [website]
    Chitchanok Chuengsatiansup, Markus Wagner, Jason Xue, Yuval Yarom, Iftach Heitner, and Eyal Ronen

  • ECMS faculty seed funding, The University of Adelaide, 2020
    Yuval Yarom, Chitchanok Chuengsatiansup, Markus Wagner, and Jason Xue


Honors and awards (selected)

  • Finalist of Google Hash Code, 2018 [website]
    Chitchanok Chuengsatiansup, Fabrice Mouhartem, Michaël Rao, and Baptiste Rozière

  • Winner of iDASH Genome Privacy Challenge (Track 1), 2017 [website]
    Fabrice Benhamouda, Chitchanok Chuengsatiansup, Gilad Asharov, Benny Pinkas, and Tal Rabin

  • IST Research Visit Scholarship (海外派遣プログラム), 2012 [website]
    Chitchanok Chuengsatiansup

  • Japanese Government Scholarship (文部科学省), 2010-2013 [website]
    Chitchanok Chuengsatiansup

  • Winner of 12th RoboCup World Championship, 2008 [website]
    Engineering Innovation Club of Chulalongkorn University

  • Bronze Prize of SAMART Innovation Awards, 2008 [website]
    Chitchanok Chuengsatiansup


Language skills

  • Thai: Fluent (Native)
  • English: Fluent
  • Japanese: Very good
  • French: Good
  • Dutch: Intermediate
  • Mandarin: Basic conversation
  • German: Basic conversation