A Method for Embedding Secret Key Information in RSA Public Key and Its Application. - Motoki Kitahara; Takashi Nishide; Kouichi Sakurai (IMIS, 2012)

Upper bound of the length of information embedd in RSA public key efficiently. - Motoki Kitahara; Takanori Yasuda; Takashi Nishide; Kouichi Sakurai (AsiaPKC@AsiaCCS, 2013)

A method of digital rights management based on Bitcoin protocol. - Motoki Kitahara; Junpei Kawamoto; Kouichi Sakurai (ICUIMC, 2014)