Ryuya Hayashi

According to our database, Ryuya Hayashi authored at least 8 papers between 2023 and 2026.

Collaborative distances:

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

2026

Attribute-Based Signatures for Circuits with Optimal Parameter Size from Standard Assumptions.

Ryuya Hayashi, Yusuke Sakai, Shota Yamada

Proceedings of the Public-Key Cryptography - PKC 2026, 2026

2025

CHOO-PIR: Hint-Based Private Information Retrieval with Commodity Servers.

Kittiphop Phalakarn, Ryuya Hayashi

Proceedings of the 22nd Annual International Conference on Privacy, Security, and Trust, 2025

Interoperability between Permissioned Distributed Ledgers without External Trust Anchor.

Iifan Tyou, Ryuya Hayashi, Kanta Matsuura

Proceedings of the 2025 IEEE International Conference on Blockchain and Cryptocurrency, 2025

2024

Anonymous Reputation Systems with Revocation, Revisited.

Ryuya Hayashi, Shuichi Katsumata, Yusuke Sakai

Proceedings of the Financial Cryptography and Data Security, 2024

Updatable Encryption Secure Against Randomness Compromise.

Yuichi Tanishita, Ryuya Hayashi, Ryu Ishii, Takahiro Matsuda, Kanta Matsuura

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

Multi-query Verifiable PIR and Its Application.

Ryuya Hayashi, Junichiro Hayata, Keisuke Hara, Kenta Nomura, Masaki Kamizono, Goichiro Hanaoka

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

On the Implications from Updatable Encryption to Public-Key Cryptographic Primitives.

Yuichi Tanishita, Ryuya Hayashi, Ryu Ishii, Takahiro Matsuda, Kanta Matsuura

Proceedings of the Information Security and Privacy - 29th Australasian Conference, 2024

2023

Signature for Objects: Formalizing How to Authenticate Physical Data and More.

Ryuya Hayashi, Taiki Asano, Junichiro Hayata, Takahiro Matsuda, Shota Yamada, Shuichi Katsumata, Yusuke Sakai, Tadanori Teruya, Jacob C. N. Schuldt, Nuttapong Attrapadung, Goichiro Hanaoka, Kanta Matsuura, Tsutomu Matsumoto

Proceedings of the Financial Cryptography and Data Security, 2023