著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Nuttapong Attrapadung and Hideki Imai,Attribute-Based Encryption Supporting Direct/Indirect Revocation Modes,Lecture Notes in Computer Science,0302-9743,Springer Berlin Heidelberg,2009,5921,,278-300,https://cir.nii.ac.jp/crid/1363951795442014336,https://doi.org/10.1007/978-3-642-10868-6_17