Efficient Multiparty Computation for Comparator Networks. - Koji Chida; Hiroaki Kikuchi; Gembu Morohashi; Keiichi Hirota (ARES, 2007)

Simple and Secure Authentication Escrow for Rights Trading Protocol. - Keiichi Hirota; Noboru Sonehara (SAINT Workshops, 2007)

Secure Multiparty Computation for Comparator Networks. - Gembu Morohashi; Koji Chida; Keiichi Hirota; Hiroaki Kikuchi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008)

Multiparty Computation from El Gamal/Paillier Conversion. - Koji Chida; Hiroaki Kikuchi; Keiichi Hirota; Gembu Morohashi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

The Metric Model for Personal Information Disclosure. - Ryosuke Yasui; Atsushi Kanai; Takashi Hatashima; Keiichi Hirota (ICDS, 2010)

Applicability of existing anonymization methods to large location history data in urban travel. - Rie Shigetomi Yamaguchi; Keiichi Hirota; Koki Hamada; Katsumi Takahashi; Kazutaka Matsuzaki; Jun Sakuma; Yasuyuki Shirai (SMC, 2012)