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Ryuya Hayashi
Biography
2016 – 2020 Bachelor's degree in Department of Information and Communication Engineering, Faculty of Engineering, the University of Tokyo
2020 – 2022 Master's degree in Department of Information and Communication Engineering, Graduate School of Information Science and Technology, the University of Tokyo
2022 – 2025 Ph.D. degree in Department of Information and Communication Engineering, Graduate School of Information Science and Technology, the University of Tokyo
2022 – 2025 JSPS Research Fellowship for Young Scientists (DC2)
2025 Joined the National Institute of Advanced Industrial Science and Technology (AIST)
He is currently working as a researcher in the Secure Platform Research Group at the Cyber Physical Security Research Institute (CPSEC) of the National Institute of Advanced Industrial Science and Technology (AIST). His research interests are in the area of cryptography and information security (especially, public-key cryptography).
Selected Publications
- Ryuya Hayashi, Junichiro Hayata, Keisuke Hara, Kenta Nomura, Masaki Kamizono, and Goichiro Hanaoka. "Multi-query Verifiable PIR and Its Application." In CANS 2024 (2), pp. 166-190, 2024.
- Yuichi Tanishita, Ryuya Hayashi, Ryu Ishii, Takahiro Matsuda, and Kanta Matsuura. "Updatable Encryption Secure Against Randomness Compromise." In CANS 2024 (2), pp. 47-69, 2024.
- Yuichi Tanishita, Ryuya Hayashi, Ryu Ishii, Takahiro Matsuda, and Kanta Matsuura. "On the Implications from Updatable Encryption to Public-Key Cryptographic Primitives." In ACISP 2024 (1), pp. 303-323, 2024.
- Ryuya Hayashi, Shuichi Katsumata, and Yusuke Sakai. "Anonymous Reputation Systems with Revocation, Revisited." In FC 2024 (2), pp. 247-263, 2024.
- 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, and Tsutomu Matsumoto. "Signature for Objects: Formalizing How to Authenticate Physical Data and More." In FC 2023 (1), pp. 82-199. 2023.
Awards
- Chair's Award from Department of Information and Communication Engineering, Graduate School of Information Science and Technology, The University of Tokyo, FY 2024.
- Computer Security Symposium 2024 (CSS 2024), Encouragement Research Award.
- Symposium on Cryptography and Information Security 2022 (SCIS 2022), Best Paper Award.
- Computer Security Symposium 2021 (CSS 2021), Best Paper Award.