{"links":{},"id":231433,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00231433","sets":["1164:5251:11193:11433"]},"path":["11433"],"owner":"44499","recid":"231433","title":["クエリ回復攻撃を軽減する共通鍵検索可能暗号"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-12-04"},"_buckets":{"deposit":"31e17506-b22b-49db-acf0-aa722512785b"},"_deposit":{"id":"231433","pid":{"type":"depid","value":"231433","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"クエリ回復攻撃を軽減する共通鍵検索可能暗号","author_link":["624741","624739","624740","624742"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"クエリ回復攻撃を軽減する共通鍵検索可能暗号"},{"subitem_title":"Searchable Symmetric Encryption to Mitigate Query Recovery Attacks","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"CSEC(1)","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2023-12-04","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"情報セキュリティ大学院大学"},{"subitem_text_value":"情報セキュリティ大学院大学"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Institute of Information Security","subitem_text_language":"en"},{"subitem_text_value":"Institute of Information Security","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/231433/files/IPSJ-EIP23102001.pdf","label":"IPSJ-EIP23102001.pdf"},"date":[{"dateType":"Available","dateValue":"2025-12-04"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-EIP23102001.pdf","filesize":[{"value":"532.2 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":"26"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"9f46dc0b-13a1-451a-a519-fa402e9eca3a","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2023 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"佐藤, 敬恒"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"土井, 洋"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Takahisa, Sato","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hiroshi, Doi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11238429","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":"2188-8647","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"共通鍵検索可能暗号 (SSE) は，暗号化クエリを通じてサーバに保存された暗号化文書の検索を実現する技術である．多くの SSE において，アクセスパターンやサーチパターンの漏洩を許容する．しかしながら最近の研究で，一定の補助情報を有する攻撃者がそれらの漏洩情報を利用して，暗号化クエリに対応するキーワードを推測するクエリ回復攻撃を実行しうることが示されている．Chen らは 2018 年，Erasure Coding により文書を複数の破片に冗長化し，暗号化索引への破片文書の登録へ摂動を与えることでアクセスパターンの漏洩を防ぐ手順を提案したが，同手順ではサーチパターンを用いたクエリ回復攻撃には対応できない．本稿では，Erasure Coding で冗長化した破片文書の一部を記録する小規模な部分索引を複数構成することで，サーチパターンを用いたクエリ回復攻撃を軽減する SSE を提案する．また提案方式では，主に暗号化クエリの発行過程に摂動を与えることで，アクセスパターンの漏洩も軽減する．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"8","bibliographic_titles":[{"bibliographic_title":"研究報告電子化知的財産・社会基盤（EIP）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2023-12-04","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicVolumeNumber":"2023-EIP-102"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:31:44.080707+00:00","updated":"2025-01-19T10:45:56.725451+00:00"}