Toi Tomita

According to our database, Toi Tomita authored at least 15 papers between 2019 and 2025.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2025

Homomorphic Signature With Designated Evaluator.

Kazuma Shiraishi, Keisuke Hara, Toi Tomita, Kyosuke Yamashita, Junji Shikata

IEEE Access, 2025

How to Use Your Brain for Cryptography Without Trustworthy Machines.

Wakaha Ogata, Toi Tomita, Kenta Takahashi, Masakatsu Nishigaki

IEEE Access, 2025

Post-quantum Fujisaki-Okamoto Transformation for Anonymous Identity-Based Encryption.

Tsuchiya Yui, Toi Tomita, Junji Shikata

Proceedings of the Information Security and Cryptology - ICISC 2025, 2025

Design and Evaluation of User Interface for Server-Aided In-Brain Signature - for Server-Aided In-Brain Signature.

Ryunosuke Harada, Wataru Hatakeyama, Sena Enomoto, Kakeru Hasegawa, Toi Tomita, Kenta Takahashi, Wakaha Ogata, Masakatsu Nishigaki

Proceedings of the HCI International 2025 Posters, 2025

2024

Compact and Tightly Secure (Anonymous) IBE from Module LWE in the QROM.

Toi Tomita, Junji Shikata

IACR Cryptol. ePrint Arch., 2024

Efficient Identity-Based Encryption with Tight Adaptive Anonymity from RLWE.

Toi Tomita, Junji Shikata

Proceedings of the Post-Quantum Cryptography - 15th International Workshop, 2024

How to Apply Fujisaki-Okamoto Transformation to Registration-Based Encryption.

Sohto Chiku, Keisuke Hara, Keitaro Hashimoto, Toi Tomita, Junji Shikata

Proceedings of the Cryptology and Network Security - 23rd International Conference, 2024

2023

Direct computation of branching programs and its applications to more efficient lattice-based cryptography.

Shuichi Katsumata, Toi Tomita, Shota Yamada

Des. Codes Cryptogr., February, 2023

Compact Signature Aggregation from Module-Lattices.

Toi Tomita, Junji Shikata

IACR Cryptol. ePrint Arch., 2023

Lattice-Based Multi-entity Identification Protocols.

Yohei Watanabe, Toi Tomita, Junji Shikata

Proceedings of the Mobile Internet Security - 7th International Conference, 2023

2022

Boosting CPA to CCA2 for Leakage-Resilient Attribute-Based Encryption by Using New QA-NIZK.

Toi Tomita, Wakaha Ogata, Kaoru Kurosawa

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2022

2020

CCA-Secure Leakage-Resilient Identity-Based Encryption without q-Type Assumptions.

Toi Tomita, Wakaha Ogata, Kaoru Kurosawa, Ryo Kuwayama

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2020

2019

CCA-Secure Leakage-Resilient Identity-Based Key-Encapsulation from Simple (not $\mathtt{q}$-type) Assumptions.

Toi Tomita, Wakaha Ogata, Kaoru Kurosawa, Ryo Kuwayama

IACR Cryptol. ePrint Arch., 2019

Tight reduction for generic construction of certificateless signature and its instantiation from DDH assumption.

Keitaro Hashimoto, Wakaha Ogata, Toi Tomita

IACR Cryptol. ePrint Arch., 2019

CCA-Secure Leakage-Resilient Identity-Based Key-Encapsulation from Simple (Not \mathtt q -type) Assumptions.

Toi Tomita, Wakaha Ogata, Kaoru Kurosawa

Proceedings of the Advances in Information and Computer Security, 2019