"Wakaha Ogata,Takaaki Otemori","Security analysis of secure kNN and ranked keyword search over encrypted data",,"International Journal of Information Security",,"Vol. 19","Issue 4","pp. 419-425",2020,Aug. "小手森崇顕,尾形わかは","内積を用いたランク付きマルチキーワード検索可能暗号の安全性に関する研究","暗号と情報セキュリティシンポジウム","暗号と情報セキュリティシンポジウム予稿集",,,,,2018,Jan.