{"links":{},"id":81150,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00081150","sets":["1164:4088:6718:6719"]},"path":["6719"],"owner":"11","recid":"81150","title":["属性ベース暗号を利用したファイル名暗号化ファイル共有サービス"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-03-08"},"_buckets":{"deposit":"c18a7c11-42c0-4e7c-b681-a812b9df9aa7"},"_deposit":{"id":"81150","pid":{"type":"depid","value":"81150","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"属性ベース暗号を利用したファイル名暗号化ファイル共有サービス","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"属性ベース暗号を利用したファイル名暗号化ファイル共有サービス"},{"subitem_title":"A File Sharing Service with File Name Encryption using CP-ABE","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"セキュリティシステム","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2012-03-08","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"広島大学大学院総合科学研究科"},{"subitem_text_value":"広島大学情報メディア教育研究センター"},{"subitem_text_value":"広島大学情報メディア教育研究センター"},{"subitem_text_value":"広島大学情報メディア教育研究センター"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Integrated Arts and Sciences, Hiroshima University","subitem_text_language":"en"},{"subitem_text_value":"Information Media Center, Hiroshima University","subitem_text_language":"en"},{"subitem_text_value":"Information Media Center, Hiroshima University","subitem_text_language":"en"},{"subitem_text_value":"Information Media Center, Hiroshima University","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/81150/files/IPSJ-IOT12016036.pdf"},"date":[{"dateType":"Available","dateValue":"2014-03-08"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-IOT12016036.pdf","filesize":[{"value":"974.1 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"43"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"88d78f9e-5ca8-4743-b585-ed4c3af88ef8","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2012 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"後藤, めぐ美"},{"creatorName":"大東, 俊博"},{"creatorName":"西村, 浩二"},{"creatorName":"相原, 玲二"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Megumi, Goto","creatorNameLang":"en"},{"creatorName":"Toshihiro, Ohigashi","creatorNameLang":"en"},{"creatorName":"Kouji, Nishimura","creatorNameLang":"en"},{"creatorName":"Reiji, Aibara","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12326962","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"近年，DropBox に代表されるオンラインストレージサービスが普及してきている．このようなサービスではストレージの管理者によりデータを覗き見られる危険性があることから，TrueCrypt のようなクライアント側で暗号化してデータを保護するシステムが注目されている．最近では，暗号文ポリシー属性ベース暗号 （CP-ABE） と呼ばれる新しい公開鍵暗号の方式を利用することで，きめ細やかなアクセス制御をクライアント主導で行う方法について活発に議論されている．しかしながら，既存の方式ではファイル名やディレクトリ名の秘匿については議論されていなかった．そこで，本稿では CP-ABE と属性ベース署名を利用してコンテンツの暗号化だけでなくファイル名やディレクトリ名の暗号化および編集権限の制御が可能な方式を提案し，ファイル共有サービスへ応用する．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Recently, a lot of online storage services, e.g. DropBox, have been widely used. These services have a weakness, which the storage administrator can obtain contents of user's files. Hence client based encryption systems like TrueCrypt are used in order to protect user's files on online storage server. In particular, several researchers discuss methods based on Ciphertext-Policy Attribute Based Encryption (CP-ABE), which encrypt data with flexible access control by client-side. However, previous methods don't discuss confidentiality of file name and directory name. In this paper, we propose a method to protect not only content of user's file but also file name of it by using CP-ABE and Attribute Based Signature (ABS). The proposed method can protect directory name too, and can control write permission of file/directory by client-side. We apply this method to file sharing service with file name encryption.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告インターネットと運用技術（IOT）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2012-03-08","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"36","bibliographicVolumeNumber":"2012-IOT-16"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"created":"2025-01-18T23:35:27.091016+00:00","updated":"2025-01-21T19:28:49.376834+00:00"}