Faster Explicit Formulae for Computing Pairings via Elliptic Nets and Their Parallel Computation. - Hiroshi Onuki; Tadanori Teruya; Naoki Kanayama; Shigenori Uchiyama (IWSEC, 2016)

The optimal ate pairing over the Barreto-Naehrig curve via parallelizing elliptic nets. - Hiroshi Onuki; Tadanori Teruya; Naoki Kanayama; Shigenori Uchiyama (JSIAM Lett., 2016)

(Short Paper) A Faster Constant-Time Algorithm of CSIDH Keeping Two Points. - Hiroshi Onuki; Yusuke Aikawa; Tsutomu Yamazaki; Tsuyoshi Takagi (IWSEC, 2019)

A Faster Constant-time Algorithm of CSIDH keeping Two Torsion Points. - Hiroshi Onuki; Yusuke Aikawa; Tsutomu Yamazaki; Tsuyoshi Takagi (IACR Cryptol. ePrint Arch., 2019)

On collisions related to an ideal class of order 3 in CSIDH. - Hiroshi Onuki; Tsuyoshi Takagi (IACR Cryptol. ePrint Arch., 2019)

Trouble at the CSIDH: Protecting CSIDH with Dummy-Operations against Fault Injection Attacks. - Fabio Campos; Matthias J. Kannwischer; Michael Meyer 001; Hiroshi Onuki; Marc Stöttinger (IACR Cryptol. ePrint Arch., 2020)

SiGamal: A supersingular isogeny-based PKE and its application to a PRF. - Tomoki Moriya; Hiroshi Onuki; Tsuyoshi Takagi (IACR Cryptol. ePrint Arch., 2020)

L1-Norm Ball for CSIDH: Optimal Strategy for Choosing the Secret Key Space. - Kohei Nakagawa; Hiroshi Onuki; Atsushi Takayasu; Tsuyoshi Takagi (IACR Cryptol. ePrint Arch., 2020)

The Existence of Cycles in the Supersingular Isogeny Graphs Used in SIKE. - Hiroshi Onuki; Yusuke Aikawa; Tsuyoshi Takagi (IACR Cryptol. ePrint Arch., 2020)

A Constant-Time Algorithm of CSIDH Keeping Two Points. - Hiroshi Onuki; Yusuke Aikawa; Tsutomu Yamazaki; Tsuyoshi Takagi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2020)

On oriented supersingular elliptic curves. - Hiroshi Onuki (Finite Fields Their Appl., 2021)

Radical Isogenies on Montgomery Curves. - Hiroshi Onuki; Tomoki Moriya (IACR Cryptol. ePrint Arch., 2021)

The Generalized Montgomery Coordinate: A New Computational Tool for Isogeny-based Cryptography. - Tomoki Moriya; Hiroshi Onuki; Yusuke Aikawa; Tsuyoshi Takagi (IACR Cryptol. ePrint Arch., 2022)

On the key generation in SQISign. - Hiroshi Onuki (IACR Cryptol. ePrint Arch., 2022)

Explicit construction of the square-root Vélu's formula on Edwards curves. - Shu Takahashi; Hiroshi Onuki; Tsuyoshi Takagi (JSIAM Lett., 2022)

Lower bound of costs of formulas to compute image curves of 3-isogenies in the framework of generalized Montgomery coordinates. - Tomoki Moriya; Hiroshi Onuki; Yusuke Aikawa; Tsuyoshi Takagi (IACR Cryptol. ePrint Arch., 2023)

QFESTA: Efficient Algorithms and Parameters for FESTA using Quaternion Algebras. - Kohei Nakagawa; Hiroshi Onuki (IACR Cryptol. ePrint Arch., 2023)

Improvement of the square-root Vélu's formulas for isogeny-based cryptography. - Saki Otsuki; Hiroshi Onuki; Tsuyoshi Takagi (JSIAM Lett., 2023)

L1-norm ball for CSIDH: Optimal strategy for choosing the secret key space. - Kohei Nakagawa; Hiroshi Onuki; Atsushi Takayasu; Tsuyoshi Takagi (Discret. Appl. Math., 2023)

How to construct CSIDH on Edwards curves. - Tomoki Moriya; Hiroshi Onuki; Tsuyoshi Takagi (Finite Fields Their Appl., 2023)

SQIsign2D-East: A New Signature Scheme Using 2-Dimensional Isogenies. - Kohei Nakagawa; Hiroshi Onuki; Wouter Castryck; Mingjie Chen; Riccardo Invernizzi; Gioella Lorenzon; Frederik Vercauteren (ASIACRYPT (3), 2024)

Adaptive Attacks Against FESTA Without Input Validation or Constant-Time Implementation. - Tomoki Moriya; Hiroshi Onuki; Maozhi Xu; Guoqing Zhou (PQCrypto (2), 2024)

Primality proving using elliptic curves with complex multiplication by imaginary quadratic fields of class number three. - Hiroshi Onuki (Finite Fields Their Appl., 2024)

SQIsign2D-East: A New Signature Scheme Using 2-dimensional Isogenies. - Kohei Nakagawa; Hiroshi Onuki (IACR Cryptol. ePrint Arch., 2024)

An efficient collision attack on Castryck-Decru-Smith's hash function. - Ryo Ohashi; Hiroshi Onuki (IACR Cryptol. ePrint Arch., 2024)

Ideal-to-isogeny algorithm using 2-dimensional isogenies and its application to SQIsign. - Hiroshi Onuki; Kohei Nakagawa (IACR Cryptol. ePrint Arch., 2024)

Efficient theta-based algorithms for computing (ℓ, ℓ)-isogenies on Kummer surfaces for arbitrary odd ℓ. - Ryo Yoshizumi; Hiroshi Onuki; Ryo Ohashi; Momonari Kudo; Koji Nuida (IACR Cryptol. ePrint Arch., 2024)

Explicit addition formulae on hyperelliptic curves of genus 2 for isogeny-based cryptography. - Kaito Sato; Hiroshi Onuki; Tsuyoshi Takagi (JSIAM Lett., 2024)

SQIsign2DPush: Faster Signature Scheme Using 2-Dimensional Isogenies. - Kohei Nakagawa; Hiroshi Onuki (IACR Cryptol. ePrint Arch., 2025)