Keita Ishizuka

16 papers A* 1Journal 15
YearRankTypeTitle / Venue / Authors
2026 J jnl
Almost All Vectorial Functions Have No Extended-Affine Symmetries.
CoRR
Keita Ishizuka
2026 J jnl
Constructions of self-orthogonal and LCD subspace codes.
Discret. Math.
Dean Crnkovic, Keita Ishizuka, Hadi Kharaghani, Sho Suda, Andrea Svob
2025 A* conf
Poster: Reducing Hull Dimensions for Efficient Permutation Recovery in Code-Based Cryptography.
CCS
Keita Ishizuka
2024 J jnl
Characterizations of the Minimum Weights of LCD Codes of Large Dimensions.
IEEE Trans. Inf. Theory
Makoto Araya, Masaaki Harada, Keita Ishizuka, Yuto Tanaka
2024 J jnl
Hadamard matrices of order 36 formed by codewords in some ternary self-dual codes.
Discret. Math.
Masaaki Harada, Keita Ishizuka
2024 J jnl
Orthogonal projectors of binary LCD codes.
CoRR
Keita Ishizuka
2024 J jnl
Ternary Extremal Four-Negacirculant Self-Dual Codes.
Graphs Comb.
Masaaki Harada, Keita Ishizuka, Hadi Kharaghani
2023 J jnl
Construction for both self-dual codes and LCD codes.
Adv. Math. Commun.
Keita Ishizuka, Ken Saito
2023 J jnl
Construction of quaternary Hermitian LCD codes.
Cryptogr. Commun.
Keita Ishizuka
2023 J jnl
Ternary extremal four-negacirculant self-dual codes.
CoRR
Masaaki Harada, Keita Ishizuka, Hadi Kharaghani
2022 J jnl
Construction of quaternary Hermitian LCD codes.
CoRR
Keita Ishizuka
2022 J jnl
On the existence of quaternary Hermitian LCD codes with Hermitian dual distance 1.
Discret. Math.
Keita Ishizuka, Ken Saito
2021 J jnl
Construction for both self-dual codes and LCD codes.
CoRR
Keita Ishizuka, Ken Saito
2021 J jnl
On the existence of quaternary Hermitian LCD codes with Hermitian dual distance 1.
CoRR
Keita Ishizuka, Ken Saito
2020 J jnl
Classification of optimal quaternary Hermitian LCD codes of dimension 2.
CoRR
Keita Ishizuka
2019 J jnl
Developing a Multi-Platform Speech Recording System Toward Open Service of Building Large-Scale Speech Corpora.
CoRR
Keita Ishizuka, Takashi Nose