Researcher

Nuttapong Attrapadung (Nutts)

Research Team Leader

Nuttapong Attrapadung is currently the Research Team Leader for the Cryptography Platform Research Team at the Cyber-Physical Security Research Center (CPSEC) of the National Institute of Advanced Industrial Science and Technology (AIST). He received his Ph.D. in Information and Communication Engineering from the University of Tokyo (Japan) in 2007. His research interests are in the area of cryptography and information security (especially public-key cryptography and multi-party computation). His specialized theme is attribute-based encryption.

Kazuma Ohara

Senior Researcher

Kazuma Ohara obtained a Ph.D. degree from the University of Electro-Communications in 2019 and is currently a research scientist in Advanced Cryptography Research Team, National Institute of Advanced Industrial Science and Technology (AIST). He specializes in applied cryptography, in particular secure multi-party computation.

Tadanori Teruya

Senior Researcher

He received the Ph.D. degree in engineering from the University of Tsukuba in 2012. Currently, he is a senior researcher with Cryptography Platform Research Team, Cyber Physical Security Research Institute in National Institute of Advanced Industrial Science and Technology. His research interests include secure and high-speed implementation of cryptographic schemes and privacy-enhancing technologies based on cryptography. In particular, software implementation of pairing-based cryptography.

Keisuke Hara

Researcher

Keisuke Hara received his Ph.D. in Science from the Tokyo Institute of Technology (Tokyo Tech) in 2022. Currently, he is a researcher in Cryptography Platform Research Team (CPRT), 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). He specializes in anonymous authentication (e.g., ring signature).

Ryuya Hayashi

Researcher

Ryuya Hayashi received his Ph.D. in Information and Communication Engineering from the University of Tokyo (Japan) in 2025 and is currently 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).

Takashi Yagawa

Research Assistant

Masahiro Ishii

Collaborating Visitors (Tokyo Institute of Technology)

Takanori Yasuda

Collaborating Visitors (Okayama University of Science)