Yasuhiko Ikematsu

44 papers C 5Misc 7Journal 21Unranked 11
YearRankTypeTitle / Venue / Authors
2026 J jnl
Key Recovery Attacks on UOV Using p^l-truncated Polynomial Rings.
IACR Cryptol. ePrint Arch.
Hiroki Furue, Yasuhiko Ikematsu
2025 J jnl
A New Cryptanalysis Against UOV-Based Variants MAYO, QR-UOV and VOX.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Hiroki Furue, Yasuhiko Ikematsu
2025 — conf
Improved Cryptanalysis of SNOVA by Solving Multi-homogeneous Systems via Matrix Transformations.
ASIACRYPT (4)
Hiroki Furue, Yasuhiko Ikematsu, Shuhei Nakamura, Rika Akiyama
2024 J jnl
Hilbert Series for Systems of UOV Polynomials.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yasuhiko Ikematsu, Tsunekazu Saito
2024 — conf
Parameterizing Time-Memory Trade-Off for Flexible Implementation of CRYSTALS-Dilithium.
SecITC
Yasushi Takahashi, Naohisa Nishida, Yuji Unagami, Saburo Toyonaga, Naoto Yanai, Yasuhiko Ikematsu, Koji Nuida, Masaya Yasuda
2024 — conf
Revisiting the security analysis of SNOVA.
APKC@AsiaCCS
Yasuhiko Ikematsu, Rika Akiyama
2024 J jnl
Revisiting the security analysis of SNOVA.
IACR Cryptol. ePrint Arch.
Yasuhiko Ikematsu, Rika Akiyama
2023 J jnl
A New Analysis of the Kipnis-Shamir Method Solving the MinRank Problem.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Shuhei Nakamura, Yacheng Wang, Yasuhiko Ikematsu
2023 Misc conf
A New Security Analysis Against MAYO and QR-UOV Using Rectangular MinRank Attack.
IWSEC
Hiroki Furue, Yasuhiko Ikematsu
2023 Misc conf
A Security Analysis on MQ-Sign.
WISA
Yasuhiko Ikematsu, Hyungrok Jo, Takanori Yasuda
2023 J jnl
A security analysis on MQ-Sign.
IACR Cryptol. ePrint Arch.
Yasuhiko Ikematsu, Hyungrok Jo, Takanori Yasuda
2023 J jnl
Recent progress in the security evaluation of multivariate public-key cryptography.
IET Inf. Secur.
Yasuhiko Ikematsu, Shuhei Nakamura, Tsuyoshi Takagi
2022 C conf
Lattice-Based Public Key Cryptosystems Invoking Linear Mapping Mask.
ProvSec
Yuntao Wang, Yasuhiko Ikematsu, Takanori Yasuda
2022 C conf
Three-Pass Identification Scheme Based on MinRank Problem with Half Cheating Probability.
ISITA
Bagus Santoso, Yasuhiko Ikematsu, Shuhei Nakamura, Takanori Yasuda
2022 J jnl
Three-Pass Identification Scheme Based on MinRank Problem with Half Cheating Probability.
CoRR
Bagus Santoso, Yasuhiko Ikematsu, Shuhei Nakamura, Takanori Yasuda
2021 — conf
A New Variant of Unbalanced Oil and Vinegar Using Quotient Ring: QR-UOV.
ASIACRYPT (4)
Hiroki Furue, Yasuhiko Ikematsu, Yutaro Kiyomura, Tsuyoshi Takagi
2021 — conf
A Study on Randomness Used in Signature Generation of UOV.
ICMC
Yasuhiko Ikematsu
2021 Misc conf
A Trace Map Attack Against Special Ring-LWE Samples.
IWSEC
Yasuhiko Ikematsu, Satoshi Nakamura, Masaya Yasuda
2021 J jnl
Algebraic approaches for solving isogeny problems of prime power degrees.
J. Math. Cryptol.
Yasushi Takahashi, Momonari Kudo, Ryoya Fukasaku, Yasuhiko Ikematsu, Masaya Yasuda, Kazuhiro Yokoyama
2021 J jnl
New complexity estimation on the Rainbow-Band-Separation attack.
Theor. Comput. Sci.
Shuhei Nakamura, Yasuhiko Ikematsu, Yacheng Wang, Jintai Ding, Tsuyoshi Takagi
2021 J jnl
Security Analysis on an El-Gamal-like Multivariate Encryption Scheme Based on Isomorphism of Polynomials.
IACR Cryptol. ePrint Arch.
Yasuhiko Ikematsu, Shuhei Nakamura, Bagus Santoso, Takanori Yasuda
2021 Misc conf
Security Analysis on an ElGamal-Like Multivariate Encryption Scheme Based on Isomorphism of Polynomials.
Inscrypt
Yasuhiko Ikematsu, Shuhei Nakamura, Bagus Santoso, Takanori Yasuda
2021 — conf
Security Analysis via Algebraic Attack Against "A New Encryption Scheme for Multivariate Quadratic System".
ICMC
Yasuhiko Ikematsu, Shuhei Nakamura
2020 J jnl
A New Variant of Unbalanced Oil and Vinegar Using Quotient Ring: QR-UOV.
IACR Cryptol. ePrint Arch.
Hiroki Furue, Yasuhiko Ikematsu, Yutaro Kiyomura, Tsuyoshi Takagi
2020 C conf
A Structural Attack on Block-Anti-Circulant UOV at SAC 2019.
PQCrypto
Hiroki Furue, Koha Kinjo, Yasuhiko Ikematsu, Yacheng Wang, Tsuyoshi Takagi
2020 J jnl
Analysis on the MinRank Attack using Kipnis-Shamir Method Against Rainbow.
IACR Cryptol. ePrint Arch.
Shuhei Nakamura, Yacheng Wang, Yasuhiko Ikematsu
2020 — conf
Cryptanalysis of GiophantusTM Schemes against Hybrid Attack.
APKC@AsiaCCS
Yuntao Wang, Yasuhiko Ikematsu, Koichiro Akiyama, Tsuyoshi Takagi
2020 — conf
Dynamic Self-dual DeepBKZ Lattice Reduction with Free Dimensions.
ICMC
Satoshi Nakamura, Yasuhiko Ikematsu, Masaya Yasuda
2020 — conf
Hybrid Meet-in-the-Middle Attacks for the Isogeny Path-Finding Problem.
APKC@AsiaCCS
Yasuhiko Ikematsu, Ryoya Fukasaku, Momonari Kudo, Masaya Yasuda, Katsuyuki Takashima, Kazuhiro Yokoyama
2020 J jnl
New Complexity Estimation on the Rainbow-Band-Separation Attack.
IACR Cryptol. ePrint Arch.
Shuhei Nakamura, Yasuhiko Ikematsu, Yacheng Wang, Jintai Ding, Tsuyoshi Takagi
2020 Misc conf
Revisiting the Minrank Problem on Multivariate Cryptography.
WISA
Yacheng Wang, Yasuhiko Ikematsu, Shuhei Nakamura, Tsuyoshi Takagi
2020 J jnl
Security Analysis Against "A New Encryption Scheme for Multivariate Quadratic Systems".
IACR Cryptol. ePrint Arch.
Yasuhiko Ikematsu, Shuhei Nakamura
2020 — conf
Solving the Search-LWE Problem by Lattice Reduction over Projected Bases.
ICMC
Satoshi Nakamura, Nariaki Tateiwa, Koha Kinjo, Yasuhiko Ikematsu, Masaya Yasuda, Katsuki Fujisawa
2019 J jnl
Chosen Message Attack on Multivariate Signature ELSA at Asiacrypt 2017.
J. Inf. Process.
Yasufumi Hashimoto, Yasuhiko Ikematsu, Tsuyoshi Takagi
2019 J jnl
The Secure Parameters and Efficient Decryption Algorithm for Multivariate Public Key Cryptosystem EFC.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yacheng Wang, Yasuhiko Ikematsu, Dung Hoang Duong, Tsuyoshi Takagi
2018 J jnl
An Efficient Key Generation of ZHFE Public Key Cryptosystem.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yasuhiko Ikematsu, Dung Hoang Duong, Albrecht Petzoldt, Tsuyoshi Takagi
2018 C conf
An Improvement on the Linear Algebraic Attack for the Indeterminate Equation Encryption Scheme.
ISITA
Yasuhiko Ikematsu, Koichiro Akiyama, Tsuyoshi Takagi
2018 Misc conf
Chosen Message Attack on Multivariate Signature ELSA at Asiacrypt 2017.
IWSEC
Yasufumi Hashimoto, Yasuhiko Ikematsu, Tsuyoshi Takagi
2018 J jnl
Chosen Message Attack on Multivariate Signature ELSA at Asiacrypt 2017.
IACR Cryptol. ePrint Arch.
Yasufumi Hashimoto, Yasuhiko Ikematsu, Tsuyoshi Takagi
2018 Misc conf
Efficient Decryption Algorithms for Extension Field Cancellation Type Encryption Schemes.
ACISP
Yacheng Wang, Yasuhiko Ikematsu, Dung Hoang Duong, Tsuyoshi Takagi
2018 C conf
HFERP - A New Multivariate Encryption Scheme.
PQCrypto
Yasuhiko Ikematsu, Ray A. Perlner, Daniel Smith-Tone, Tsuyoshi Takagi, Jeremy Vates
2017 J jnl
A Public-key Encryption Scheme Based on Non-linear Indeterminate Equations (Giophantus).
IACR Cryptol. ePrint Arch.
Koichiro Akiyama, Yasuhiro Goto, Shinya Okumura, Tsuyoshi Takagi, Koji Nuida, Goichiro Hanaoka, Hideo Shimizu, Yasuhiko Ikematsu
2017 — conf
Revisiting the Efficient Key Generation of ZHFE.
C2SI
Yasuhiko Ikematsu, Dung Hoang Duong, Albrecht Petzoldt, Tsuyoshi Takagi
2016 J jnl
Revisiting the Efficient Key Generation of ZHFE.
IACR Cryptol. ePrint Arch.
Yasuhiko Ikematsu, Dung Hoang Duong, Albrecht Petzoldt, Tsuyoshi Takagi