Multi-Observed Authentication: A secure and usable authentication based on multi-point observation of a single physical credential. - Wataru Hatakeyama; Shinnosuke Nozaki; Ayumi Serizawa; Mizuho Yoshihira; Masahiro Fujita; Ayako Yoshimura; Tetsushi Ohki; Masakatsu Nishigaki (APSIPA, 2024)

Design and Evaluation of User Interface for Server-Aided In-Brain Signature - for Server-Aided In-Brain Signature. - Ryunosuke Harada; Wataru Hatakeyama; Sena Enomoto; Kakeru Hasegawa; Toi Tomita; Kenta Takahashi; Wakaha Ogata; Masakatsu Nishigaki (HCI (63), 2025)