A Privacy Protection Scheme for a Scalable Control Method in Context-Dependent Services. - Rei Yoshida; Rie Shigetomi; Kazuki Yoshizoe; Akira Otsuka; Hideki Imai (WEWoRC, 2007)

Practical Searching over Encrypted Data by Private Information Retrieval. - Rei Yoshida; Yang Cui 001; Tomohiro Sekino; Rie Shigetomi; Akira Otsuka; Hideki Imai (GLOBECOM, 2010)