暗号理論、多変数多項式暗号
キーワード：暗号理論、多変数多項式暗号
2016.04.

CREST ポスト量子社会が求める高機能暗号の数理基盤創出と展開
2021.10.

CREST暗号数理：次世代暗号に向けたセキュリティ危殆化回避数理モデリング
2016.07～2022.03.

主要原著論文

1.	Yasuhiko Ikematsu, Shuhei Nakamura, Tsuyoshi Takagi, Recent Progress in the Security Evaluation of Multivariate Public-Key Cryptography, IET Information Security, 2022.09.
2.	Yasuhiko Ikematsu, Shuhei Nakamura, Security Analysis via Algebraic Attack Against "A New Encryption Scheme for Multivariate Quadratic System", Proceedings of the Seventh International Conference on Mathematics and Computing , 1412, 9-21, 2022.03.
3.	Hiroki Furue, Yasuhiko Ikematsu, Yutaro Kiyomura, Tsuyoshi Takagi, A New Variant of Unbalanced Oil and Vinegar Using Quotient Ring: QR-UOV, Lecture Notes in Computer Science, 13093, 187-217, 2021.12.
4.	Yasuhiko Ikematsu, Ryoya Fukasaku, Momonari Kudo, Masaya Yasuda, Katsuyuki Takashima, Kazuhiro Yokoyama, Hybrid meet-in-the-middle-attacks for the isogeny path-finding problem, Proceedings of the 7th ACM Workshop on ASIA Public-Key Cryptography, 2020.10.
5.	Yasuhiko Ikematsu, Local theta lift for p-adic unitary dual pairs U(2)×U(1) and U(2)×U(3), Kyoto Journal of Mathematics, Vol. 59, No. 4, 1075-1110, 2019.12.
6.	Yacheng Wang, Yasuhiko Ikematsu, Dung Hoang Duong, Tsuyoshi Takagi, Efficient decryption algorithms for extension field cancellation type encryption schemes, 23rd Australasian Conference on Information Security and Privacy, ACISP 2018 Information Security and Privacy - 23rd Australasian Conference, ACISP 2018, Proceedings, 10.1007/978-3-319-93638-3_28, 487-501, 2018.06, [URL].
7.	Yasuhiko Ikematsu, Ray Perlner, Daniel Smith-Tone, Tsuyoshi Takagi, Jeremy Vates, HFERP - A new multivariate encryption scheme, 9th International Conference on Post-Quantum Cryptography, PQCrypto 2018 Post-Quantum Cryptography - 9th International Conference, PQCrypto 2018, Proceedings, 10.1007/978-3-319-79063-3_19, 396-416, 2018.04, [URL].
8.	Yasuhiko Ikematsu, Dung Hoang Duong, Albrecht Petzoldt, Tsuyoshi Takagi, An efficient key generation of ZHFE public key cryptosystem, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 10.1587/transfun.E101.A.29, E101A, 1, 29-38, 2018.01, [URL].
9.	Yasuhiko Ikematsu, Dung H. Duong, Albrecht Petzoldt, Tsuyoshi Takagi, Revisiting the Efficient Key Generation of ZHFE, Proceedings of the International Conference on Codes, Cryptology, and Information Security, 195-212, 2017.03.

主要総説, 論評, 解説, 書評, 報告書等

主要学会発表等

1.	池松泰彦, UOV署名方式に付随するHilbert級数について, IMI暗号学セミナー, 2022.07.
2.	池松 泰彦, 多変数多項式暗号の最近の進展について, 金沢暗号理論勉強会, 2021.06.
3.	池松 泰彦, 耐量子計算機暗号におけるグレブナー基底攻撃の計算量評価について, 日本数式処理学会第29回大会, 2020.11.
4.	Yasuhiko Ikematsu, Hybrid meet-in-the-middle attacks for the isogeny path-finding problem, The 7th ACM ASIA Public-Key Cryptography Workshop (APKC 2020), 2020.10.
5.	池松 泰彦, 多変数連立二次方程式の求解困難性を利用した暗号の構成について , シンポジウム 暗号数理の現状と未来, 2019.11.
6.	Yasuhiko Ikematsu, Chosen Message Attack on Multivariate Signature ELSA at Asiacrypt 2017, 13th International Workshop on Security, IWSEC 2018, 2018.09, [URL].
7.	池松 泰彦, The multivariate encryption scheme HFERP , 量子情報社会に向けた数理的アプローチ, 2018.09.
8.	Yasuhiko Ikematsu, The description of local theta lift for U(2)×U(3) , The 16th Korea-Japan Workshop on Algebra and Combinatorics, 2018.02.
9.	Yasuhiko Ikematsu, Revisiting the efficient key generation of ZHFE, 2nd International Conference on Codes, Cryptology and Information Security, C2SI 2017, 2017.04, [URL].
10.	池松 泰彦, Local theta lift for U(2)×U(3) , RIMS研究集会 保型形式・保型的L関数とその周辺, 2016.02.

1.

Hiroki Furue, Yasuhiko Ikematsu, Fumitaka Hoshino, Tsuyoshi Takagi, Kan Yasuda, Toshiyuki Miyazawa, Tsunekazu Saito, Akira Nagai, QR-UOV, 2023.07 Kyushu University, the University of Tokyo, University of Nagasaki and NTT developed a new multivariate signature scheme called QR-UOV. We submitted this signature scheme to Additional Digital Signature Schemes for the Post-Quantum Cryptography Standardization Process of National Institute of Standards and Technology (NIST)., [URL].

所属学会名

学協会役員等への就任

学会大会・会議・シンポジウム等における役割

学会誌・雑誌・著書の編集への参加状況

学術論文等の審査

2023年WISA2023 Best Paper Award, WISA2023, 2023.08.

2023年IWSEC2023 Best Student Paper Award, IWSEC2023, 2023.08.

辻井重男セキュリティ論文賞 特別賞, 日本セキュリティ・マネジメント学会, 2022.10.

2019年度 Journal of Information Processing Outstanding Paper Award, 情報処理学会, 2020.04.

Journal of Information Processing, Specially Selected Paper , 情報処理学会, 2019.10.

IWSEC2018 BEST PAPER AWARD, 電子情報通信学会, 2018.09.