Kyushu University Academic Staff Educational and Research Activities Database
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Yasuhiko Ikematsu Last modified date:2021.06.08

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Academic Degree
Doctor of Mathematical Science
Country of degree conferring institution (Overseas)
Field of Specialization
Public Key Cryptograph, Mathematical Cryptography, Multivariate Public Key Cryptosystem
Total Priod of education and research career in the foreign country
Research Interests
  • Cryptography, Multivariate Public Key Cryptosystem
    keyword : Cryptography, Multivariate Public Key Cryptosystem
Academic Activities
1. 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.
2. 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.
3. 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.
4. 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.
5. 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.
1. 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.
2. Yasuhiko Ikematsu, Chosen Message Attack on Multivariate Signature ELSA at Asiacrypt 2017, 13th International Workshop on Security, IWSEC 2018, 2018.09.
3. Yasuhiko Ikematsu, The description of local theta lift for U(2)×U(3)
, The 16th Korea-Japan Workshop on Algebra and Combinatorics, 2018.02.
4. Yasuhiko Ikematsu, Revisiting the efficient key generation of ZHFE, 2nd International Conference on Codes, Cryptology and Information Security, C2SI 2017, 2017.04.