Mingjie Chen
Hi!
I am a post-doc at COSIC, KU Leuven, working with Frederik Vercauteren . Before that, I was a post-doc at Université Libre de Bruxelles (Feb 2024-June 2024) and Birmingham University (Mar 2022-Jan 2024), working with Christophe Petit. I obtained my Ph.D. in number theory in 2022 from UC San Diego under the supervision of Kiran Kedlaya.
I am interested in post-quantum cryptography, in particular, isogeny-based cryptography and computational number theory.
Email: mjchennn555@gmail.com
Links: Google Scholar; ORCID
Last updated: Feb 4th, 2025
Publications and preprints
Computing the endomorphism ring of a supersingular elliptic curve from a full rank suborder, joint with Christophe Petit, EUROCRYPT 2025 (to appear)
SQIsign2D-East: A New Signature Scheme Using 2-dimensional Isogenies, joint with Kohei Nakagawa, Hiroshi Onuki, Wouter Castryck, Riccardo Invernizzi, Gioella Lorenzon and Frederik Vercauteren, ASIACRYPT 2024 [Conference Proceeding]
Breaking and Repairing SQIsign2D-East, joint with Wouter Castryck, Riccardo Invernizzi, Gioella Lorenzon and Frederik Vercauteren, preprint 2024 [ePrint] (merged with this paper by Kohei Nakagawa and Hiroshi Onuki to be the final version of SQIsign2D-East at ASIACRYPT 2024)
Faster algorithms for isogeny computations over extensions of finite fields, joint with Shiping Cai and Christophe Petit, NuTMiC 2024 [ePrint]
Coleman Integration on Modular Curves, joint with Jun Bo Lau and Kiran Kedlaya, preprint 2024 [arXiv]
SCALLOP-HD: group action from 2-dimensional isogenies, joint with Antonin Leroux and Lorenz Panny, PKC 2024 [ePrint, Conference Proceeding]
Exploring SIDH-based Signature Parameters, joint with Andrea Basso, Tako Boris Fouotsa, Péter Kutas, Abel Laval, Laurane Marco and Gustave Tchoffo Saah, ACNS 2024 [ePrint, Conference Proceeding]
Orientations and cycles in supersingular isogeny graphs, joint with Sarah Arpin, Kristin E. Lauter, Renate Scheidler, Katherine E. Stange and Ha T. N. Tran, Assoc. Women Math. Ser., Volume 33(2024) p25-86 [arXiv, Journal]
Hidden Stabilizers, the Isogeny To Endomorphism Ring Problem and the Cryptanalysis of pSIDH, joint with Muhammad Imran, Gábor Ivanyos, Péter Kutas, Antonin Leroux and Christophe Petit, ASIACRYPT 2023 [Conference Proceeding]
Malleable Commitments from Group Actions and Zero-Knowledge Proofs for Circuits based on Isogenies, joint with Yi-Fu Lai, Abel Laval, Laurane Marco and Christophe Petit, INDOCRYPT 2023 [ePrint, Conference Proceeding]
Orienteering with one endomorphism, joint with Sarah Arpin, Kristin E Lauter, Renate Scheidler, Katherine E Stange and Ha TN Tran, La Matematica, Volume 2(2023) p523-583 [Journal]
Quadratic Chabauty for Atkin-Lehner quotients of modular curves of prime level and genus 4, 5, 6, joint with Nikola Adžaga, Vishal Arul, Lea Beneish, Shiva Chidambaram, Timo Keller and Boya Wen, Acta Arithmetica 208 (2023), p 15-49 [Journal]
Salsa: Attacking lattice cryptography with transformers, with Emily Wenger, Francois Charton and Kristin E Lauter, NeurIPS 2022 [Conference Proceeding] (*cofirst authors with Emily Wenger)
On Fp-roots of the Hilbert class polynomial modulo p, joint with Jiangwei Xue, J. of Math. (PRC) Vol 42(2022), No. 2 [Journal]