Ryo Hiromasa

According to our database, Ryo Hiromasa authored at least 12 papers between 2015 and 2025.

Collaborative distances:

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

2025

Abuse-Resistant Evaluation of AI-as-a-Service via Function-Hiding Homomorphic Signatures.

Nuttapong Attrapadung, Goichiro Hanaoaka, Ryo Hiromasa, Yoshihiro Koseki, Takahiro Matsuda, Yutaro Nishida, Yusuke Sakai, Jacob C. N. Schuldt, Satoshi Yasuda

Proceedings of the Computer Security - ESORICS 2025, 2025

2024

Privacy-Preserving Verifiable CNNs.

Nuttapong Attrapadung, Goichiro Hanaoka, Ryo Hiromasa, Yoshihiro Koseki, Takahiro Matsuda, Yutaro Nishida, Yusuke Sakai, Jacob C. N. Schuldt, Satoshi Yasuda

Proceedings of the Applied Cryptography and Network Security, 2024

2023

Maliciously circuit-private multi-key FHE and MPC based on LWE.

Nuttapong Attrapadung, Goichiro Hanaoka, Ryo Hiromasa, Takahiro Matsuda, Jacob C. N. Schuldt

Des. Codes Cryptogr., May, 2023

Rewindable Quantum Computation and Its Equivalence to Cloning and Adaptive Postselection.

Ryo Hiromasa, Akihiro Mizutani, Yuki Takeuchi, Seiichiro Tani

Proceedings of the 18th Conference on the Theory of Quantum Computation, 2023

2021

Computational self-testing for entangled magic states.

Akihiro Mizutani, Yuki Takeuchi, Ryo Hiromasa, Yusuke Aikawa, Seiichiro Tani

IACR Cryptol. ePrint Arch., 2021

2020

MPSign: A Signature from Small-Secret Middle-Product Learning with Errors.

Shi Bai, Dipayan Das, Ryo Hiromasa, Miruna Rosca, Amin Sakzad, Damien Stehlé, Ron Steinfeld, Zhenfei Zhang

Proceedings of the Public-Key Cryptography - PKC 2020, 2020

2018

Digital Signatures from the Middle-Product LWE.

Ryo Hiromasa

Proceedings of the Provable Security, 2018

Multi-key Homomorphic Proxy Re-Encryption.

Satoshi Yasuda, Yoshihiro Koseki, Ryo Hiromasa, Yutaka Kawai

Proceedings of the Information Security - 21st International Conference, 2018

2017

Efficient Fully Homomorphic Encryption and Digital Signatures Secure from Standard Assumptions.

Ryo Hiromasa

PhD thesis, 2017

Fully Dynamic Multi Target Homomorphic Attribute-Based Encryption.

Ryo Hiromasa, Yutaka Kawai

IACR Cryptol. ePrint Arch., 2017

Dynamic Multi Target Homomorphic Attribute-Based Encryption.

Ryo Hiromasa, Yutaka Kawai

Proceedings of the Cryptography and Coding - 16th IMA International Conference, 2017

2015

Packing Messages and Optimizing Bootstrapping in GSW-FHE.

Ryo Hiromasa, Masayuki Abe, Tatsuaki Okamoto

Proceedings of the Public-Key Cryptography - PKC 2015 - 18th IACR International Conference on Practice and Theory in Public-Key Cryptography, Gaithersburg, MD, USA, March 30, 2015