Koizumi Eisuke

コイズミエイスケ | Koizumi Eisuke

Affiliation and department：
Job title： Assistant Professor

Research field (2)： Applied mathematics and statistics , Information theory

Research keywords (3)：暗号 , Grauert tube , Information Security

Research theme for competitive and other funds (2)：

Papers (19)：

Shuji Isobe, Eisuke Koizumi. A construction of encryption protocols over some semidirect products. Journal of Mathematical Cryptology. 2023. 17. 1
Firas KRAIEM, Shuji ISOBE, Eisuke KOIZUMI, Hiroki SHIZUYA. On a Relation between Knowledge-of-Exponent Assumptions and the DLog vs. CDH Question. IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. 2021. E104.A. 1. 20-24
Firas Kraiem, Shuji Isobe, Eisuke Koizumi, Hiroki Shizuya. On the Classification of Knowledge-of-exponent Assumptions in Cyclic Groups. Interdisciplinary Information Sciences. 2019. 25. 1. 67-74
Shuji Isobe, Jun-ya Iwazaki, Eisuke Koizumi, Atsushi Suda. A Construction of Cramer-Shoup Like Encryption Protocols Based on the Anshel-Anshel-Goldfeld Key Exchange Protocol. The Sixth International Symposium on Computing and Networking Workshops (CANDAR 2018). 2018. 410-416
Masayuki Fukumitsu, Shingo Hasegawa, Shuji Isobe, Jun-ya Iwazaki, Eisuke Koizumi, Masao Sakai. A Method for Constructing an Autonomous Decentralized P2P Storage with High Confidentiality and Reliability. The Fifth International Symposium on Computing and Networking (CANDAR 2017). 2017. 439-444

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MISC (12)：

TAKAHASHI Daiki, HASEGAWA Shingo, ISOBE Shuji, KOIZUMI Eisuke, SHIZUYA Hiroki. On the Limit of Security Proof for Homomorphic Encryption. Technical report of IEICE. ISEC. 2015. 114. 471. 33-38
IWAZAKI Jun-ya, HASEGAWA Shingo, ISOBE Shuji, KOIZUMI Eisuke, SHIZUYA Hiroki. On the Little Knowledge Interactive Proof. IEICE technical report. Life intelligence and office information systems. 2011. 111. 286. 149-154
The Trust Anchor Renewal Technology. 2011. 2009. 1-6
HUH Ji-Won, ISOBE Shuji, KOIZUMI Eisuke, SHIZUYA Hiroki. On the self-reducibility and the many-one-like reducibilities for multi-valued functions. IEICE technical report. 2011. 110. 443. 389-294
NISHIGAKI Yuji, HASEGAWA Shingo, ISOBE Shuji, KOIZUMI Eisuke, SAKAI Masao, SHIZUYA Hiroki. On the Computational Complexity of the Discrete Logarithm Problem over Algebraic Tori. IEICE technical report. 2009. 108. 473. 545-550

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Patents (15)：

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Books (4)：

Lectures and oral presentations (26)：

On a relation between knowledge-of-exponent assumptions and the DLog vs. CDH question
(2020)
ブロックチェーンと中央集権型サーバの連携による実用的スマートコントラクトの実現手法
(コンピュータセキュリティ研究発表会 2018)
東北大学学士課程入学者の基礎的な情報対応能力の年次推移
(大学ICT推進協議会2017年度年次大会 2017)
東北大学での新学生用電子メールサービスの導入
(大学ICT推進協議会2015年度年次大会 2015)
商用ホスティングサービスを活用してサーバ構築とウェブアプリ開発を体験する授業の改善成果報告
(大学ICT推進協議会2015年度年次大会 2015)

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Education (2)：

Professional career (1)：

Association Membership(s) (1)：

日本数学会

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