{"updated":"2025-01-21T12:30:31.861578+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00098205","sets":["6164:6165:6462:7437"]},"path":["7437"],"owner":"11","recid":"98205","title":["条件付き関数型代理人再暗号化方式"],"pubdate":{"attribute_name":"公開日","attribute_value":"2013-10-14"},"_buckets":{"deposit":"6ab102e0-3ccc-4f7d-8217-31b131baa7dd"},"_deposit":{"id":"98205","pid":{"type":"depid","value":"98205","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"条件付き関数型代理人再暗号化方式","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"条件付き関数型代理人再暗号化方式"},{"subitem_title":"Functional Conditional Proxy-Re-Encryption","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"関数型暗号，代理人再暗号化","subitem_subject_scheme":"Other"}]},"item_type_id":"18","publish_date":"2013-10-14","item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_18_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"三菱電機株式会社"},{"subitem_text_value":"三菱電機株式会社"}]},"item_18_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Mitsubishi Electric","subitem_text_language":"en"},{"subitem_text_value":"Mitsubishi Electric","subitem_text_language":"en"}]},"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/98205/files/IPSJCSS2013011.pdf"},"date":[{"dateType":"Available","dateValue":"2015-10-14"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJCSS2013011.pdf","filesize":[{"value":"253.6 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":"30"},{"tax":["include_tax"],"price":"0","billingrole":"46"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"36dee4ef-c22d-48f6-9340-14f7411b00d6","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2013 by the Information Processing Society of Japan"}]},"item_18_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"川合, 豊"},{"creatorName":"高島, 克幸"}],"nameIdentifiers":[{}]}]},"item_18_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yutaka, Kawai","creatorNameLang":"en"},{"creatorName":"Katsuyuki, Takashima","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_5794","resourcetype":"conference paper"}]},"item_18_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"代理人再暗号化方式（Proxy-Re-Encryption, PRE）は，再暗号化鍵と呼ばれる鍵で，暗号文の宛先を変更可能な公開鍵暗号方式である．通常のPREでは，Aが作成した再暗号化鍵でA宛のいかなる暗号文でも再暗号化できる．そのため，受信者Aは再暗号化する暗号文を選ぶことができない．これを解決する技術に，再暗号化鍵に再暗号化する暗号文の条件を指定する，条件付き代理人再暗号化方式があるが，既存方式は設定可能な条件が柔軟でない．本稿では，柔軟な再暗号化の条件が設定可能な条件付き関数型代理人再暗号化方式を提案する．具体的に，条件付き関数型代理人再暗号化方式のモデルとその安全性を定義し，内積述語暗号を基にした具体的方式を構成する．","subitem_description_type":"Other"}]},"item_18_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Proxy-re-encryption (PRE) is an interesting extension of traditional public key encryption. In addition to the normal operations of PKE, with a dedicated re-encryption key (generated by an original receiver A), a proxy can turn ciphertexts originally destined for user A (called original ciphertexts) into those for user B. In basic PRE, a user cannot control a policy which an original ciphertext is re-encrypted.  In this paper, we introduce a new notion of functional conditional-proxy-re-encryption (F-CPRE). We first formulate such a model of F-CPRE scheme and security notions (payload-hiding properties). We then propose the inner-product conditional PRE scheme.","subitem_description_type":"Other"}]},"item_18_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"85","bibliographic_titles":[{"bibliographic_title":"コンピュータセキュリティシンポジウム2013論文集"}],"bibliographicPageStart":"78","bibliographicIssueDates":{"bibliographicIssueDate":"2013-10-14","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicVolumeNumber":"2013"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"created":"2025-01-18T23:44:30.163334+00:00","id":98205,"links":{}}