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Affiliation |
Organization for the Promotion of Education |
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Job Title |
Specially Appointed Assistant Professor |
TOMITA Toi
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The Best Research Achievement in Research Career 【 display / non-display 】
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【Published Thesis】 Efficient Identity-Based Encryption with Tight Adaptive Anonymity from RLWE(15th International Workshop, PQCrypto 2024) 2024.06
【Published Thesis】 Direct computation of branching programs and its applications to more efficient lattice-based cryptography(Designs, Codes and Cryptography) 2022.09
【Published Thesis】 Lattice-Based Multi-entity Identification Protocols(7th International Conference, MobiSec 2023) 2024.06
Degree 【 display / non-display 】
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Doctor of Engineering - Tokyo Institute of Technology
Campus Career 【 display / non-display 】
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2024.4
Concurrently Yokohama National UniversityOrganization for the Promotion of Education Specially Appointed Assistant Professor
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2022.4
Duty Yokohama National UniversityInstitute of Advanced Sciences Specially Appointed Assistant Professor
Papers 【 display / non-display 】
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Homomorphic Signature With Designated Evaluator
Shiraishi, K; Hara, K; Tomita, T; Yamashita, K; Shikata, J
IEEE ACCESS 13 23950 - 23958 2025 [Reviewed]
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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How to Apply Fujisaki-Okamoto Transformation to Registration-Based Encryption
Sohto Chiku, Keisuke Hara, Keitaro Hashimoto, Toi Tomita & Junji Shikata
International Conference on Cryptology and Network Security 14906 145 - 165 2024.9 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
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Lattice-Based Multi-entity Identification Protocols
Yohei Watanabe, Toi Tomita, and Junji Shikata
7th International Conference, MobiSec 2023 2095 51 - 65 2024.6 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Efficient Identity-Based Encryption with Tight Adaptive Anonymity from RLWE
Toi Tomita and Junji Shikata
15th International Workshop, PQCrypto 2024 1 300 - 321 2024.6 [Reviewed]
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Shuichi Katsumata, Toi Tomita, and Shota Yamada
Designs, Codes and Cryptography 91 391 - 431 2022.9 [Reviewed]
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Single Work
Awards 【 display / non-display 】
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CSS2024優秀論文賞
2024.10 一般社団法人 情報処理学会 コンピュータセキュリティ研究会（CSEC）
Individual or group name of awards：知久 奏斗, 原 啓祐, 橋本 啓太郎, 冨田 斗威, 四方 順司
Presentations 【 display / non-display 】
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耐量子IDベース暗号に対する藤崎・岡本変換とその匿名性について
土屋 有偉，冨田 斗威，四方 順司
2025年 暗号と情報セキュリティシンポジウム
Event date： 2025.1
Language：English Presentation type：Oral presentation (general)
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CCA安全な登録ベース暗号
知久 奏斗，原 啓祐，橋本 啓太郎．冨田 斗威，四方 順司
コンピューターセキュリティシンポジウム2024
Event date： 2024.10
Language：Japanese Presentation type：Oral presentation (general)
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格子によるタイトに適応的匿名性を持つコンパクトなIDベース暗号
冨田 斗威，四方 順司
2024年 暗号と情報セキュリティシンポジウム
Event date： 2024.1
Language：Japanese Presentation type：Oral presentation (general)
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指定演算者型準同型署名
白石 一真，原 啓祐，冨田 斗威，四方 順司
コンピューターセキュリティシンポジウム2023
Event date： 2023.10 - 2023.11
Language：Japanese Presentation type：Oral presentation (general)
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A Concretely Compact Lattice-Based Aggregate Signature Scheme
Toi Tomita, Junji Shikata
コンピューターセキュリティシンポジウム2023
Event date： 2023.10 - 2023.11
Language：English Presentation type：Oral presentation (general)
Charge of on-campus class subject 【 display / non-display 】
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2025 Theory of Computation Ⅱ
College of Engineering Science
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2025 Cyber-Physical Network Architecture
College of Engineering Science
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2025 Programming Exercises I
College of Engineering Science