{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00190556","sets":["1164:6389:9385:9512"]},"path":["9512"],"owner":"11","recid":"190556","title":["セキュアチャネルフリー検索可能暗号と公開鍵暗号との安全な併用について"],"pubdate":{"attribute_name":"公開日","attribute_value":"2018-07-18"},"_buckets":{"deposit":"917c3e1c-75f7-4351-b90e-622d1dc9b4ee"},"_deposit":{"id":"190556","pid":{"type":"depid","value":"190556","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"セキュアチャネルフリー検索可能暗号と公開鍵暗号との安全な併用について","author_link":["436323","436326","436324","436321","436322","436325"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"セキュアチャネルフリー検索可能暗号と公開鍵暗号との安全な併用について"},{"subitem_title":"On the integration of SCF-PEKS and PKE","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2018-07-18","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東海大学大学院情報通信学研究科"},{"subitem_text_value":"国立研究開発法人情報通信研究機構"},{"subitem_text_value":"東海大学大学院情報通信学研究科"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"School of Information and Telecommunication Engineering, Tokai University","subitem_text_language":"en"},{"subitem_text_value":"National Institute of Information and Communications Technology (NICT)","subitem_text_language":"en"},{"subitem_text_value":"School of Information and Telecommunication Engineering, Tokai 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/190556/files/IPSJ-SPT18029004.pdf","label":"IPSJ-SPT18029004.pdf"},"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-SPT18029004.pdf","filesize":[{"value":"361.5 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"46"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_login","version_id":"cc90250d-aeac-49dc-a58a-a13531355523","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2018 by the Institute of Electronics, Information and Communication Engineers This SIG report is only available to those in membership of the SIG."}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"鈴木, 達也"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"江村, 恵太"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"大東, 俊博"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Tatsuya, Suzuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Keita, Emura","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Toshihiro, Ohigashi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12628305","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_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8671","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"受信者がトラップドアを用いることで，暗号化されたキーワードを検索できる検索可能暗号 (Public key encrypion with keyword search，PEKS) が EUROCRYPT 2004 にて Boneh らにより提案されている．なお PEKS はデータの暗号化や復号をサポートしていないため，実用的には PEKS と公開鍵暗号 (Public Key Encryption, PKE) とを併用する必要がある．なお単純に PEKS と PKE とを併用すると，仮に PKE が適用的選択暗号文攻撃 (Chosen Ciphertext Attack，CCA) に耐性を持つ場合でも，CCA 安全性を満たさないことに注意されたい．そこで ISC 2006 にて Baek らにより PEKS と PKE とを併用した方式 (PEKS / PKE) 及びその安全性 (Joint CCA) が提案されている．なお既存の PEKS 及び PEKS / PKE では，受信者が安全な通信路 (セキュアチャネル) を用いてトラップドアをサーバへ送ることが前提であった．本稿では，そのようなセキュアチャネルを仮定しないセキュアチャネルフリー PEKS / PKE  (Secure-Channel Free PEKS / PKE, SCF-PEKS / PKE) を提案する．SCF-PEKS / PKE に対する Joint CCA 安全性を定義し，匿名 ID ベース暗号 (Anonymous Identity-based encryption, Anonymous IBE)， タグベース暗号， ワンタイム署名からの一般的構成法を提案する．また IBE が Unrestlicted Strong Collision-Freeness をみたす場合，既存の SCF-PEKS より強い Consistency を達成できること，及びそのような IBE 方式が Abdalla らが TCC2010 にて示した変換手法を用いることで実現可能であることを示す．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"8","bibliographic_titles":[{"bibliographic_title":"研究報告セキュリティ心理学とトラスト（SPT）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2018-07-18","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicVolumeNumber":"2018-SPT-29"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"id":190556,"updated":"2025-01-20T01:08:32.411127+00:00","links":{},"created":"2025-01-19T00:56:31.094332+00:00"}