I am a researcher at Security Fundamentals Laboratory in NICT, Japan. My research area is cryptography, especially public-key crypto and information-theoretic crypto. I received the Ph.D degree in information science under the supervision of Prof. Dr. Junji Shikata in 2016 from Yokohama National University, Japan.


My paper on identity-based encryption secure against the key generation center was accepted at ESORICS 2019.
My paper on key-updatable PEKS was accepted to International Journal of Information Security.
My paper on secret-sharing-based MPC was accepted to IEICE Trans.


Security Fundamentals Laboratory
Cybersecurity Research Institute
4-2-1 Nukuikitamachi,
Koganei, Tokyo, 184-8795, Japan
E-mail: yohei.watanabe [at] nict [dot] go [dot] jp
Previous E-mail: watanabe [at] uec [dot] ac [dot] jp (still alive!)


NICT Security Fundamental Laboratory
Ohta-Iwamoto Laboratory (UEC, Japan)
Mitsugu Iwamoto
Shikata Laboratory (YNU, Japan)