{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:02002113","sets":["1164:1867:11897:1746755291135"]},"path":["1746755291135"],"owner":"80578","recid":"2002113","title":["属性ベース暗号におけるTEEの活用に向けた検討"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-05-14"},"_buckets":{"deposit":"ca9851e9-931a-4531-94b8-daeebe88d8f8"},"_deposit":{"id":"2002113","pid":{"type":"depid","value":"2002113","revision_id":0},"owners":[80578],"status":"published","created_by":80578},"item_title":"属性ベース暗号におけるTEEの活用に向けた検討","author_link":[],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"属性ベース暗号におけるTEEの活用に向けた検討","subitem_title_language":"ja"},{"subitem_title":"Consideration of TEE Utilization in Attribute-Based Encryption","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2025-05-14","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"お茶の水女子大学／情報・システム研究機構データサイエンス共同利用基盤施設セキュアコンピュータシステム研究開発センター"},{"subitem_text_value":"情報・システム研究機構データサイエンス共同利用基盤施設セキュアコンピュータシステム研究開発センター／大妻女子大学"},{"subitem_text_value":"国立情報学研究所／情報・システム研究機構データサイエンス共同利用基盤施設セキュアコンピュータシステム研究開発センター"},{"subitem_text_value":"セコム株式会社IS研究所"},{"subitem_text_value":"セコム株式会社IS研究所"},{"subitem_text_value":"お茶の水女子大学"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Ochanomizu University / Research Organization of Information and Systems Joint Support Center for Data Science Research, Center for R&D on Secure Computer Systems","subitem_text_language":"en"},{"subitem_text_value":"Research Organization of Information and Systems Joint Support Center for Data Science Research, Center for R&D on Secure Computer Systems / Otsuma Women's University","subitem_text_language":"en"},{"subitem_text_value":"National Institute of Informatics / Research Organization of Information and Systems Joint Support Center for Data Science Research, Center for R&D on Secure Computer Systems","subitem_text_language":"en"},{"subitem_text_value":"SECOM Intelligent Systems Laboratory","subitem_text_language":"en"},{"subitem_text_value":"SECOM Intelligent Systems Laboratory","subitem_text_language":"en"},{"subitem_text_value":"Ochanomizu 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 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Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"佐々木,怜名"}]},{"creatorNames":[{"creatorName":"石川,裕"}]},{"creatorNames":[{"creatorName":"竹房,あつ子"}]},{"creatorNames":[{"creatorName":"高山,献"}]},{"creatorNames":[{"creatorName":"西平,侑磨"}]},{"creatorNames":[{"creatorName":"小口,正人"}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10444176","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":"2188-8795","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"属性ベース暗号は，きめ細やかなアクセス制御を実現できる高機能暗号である．従来の公開鍵暗号方式よりも低コストな鍵管理方法で，多くのユーザとデータ共有が可能となる点で注目されている．しかし，属性ベース暗号では，ユーザのアクセス権限の失効に伴い，マスタ公開鍵や秘密鍵，暗号文の更新が必要となり，サーバやユーザ上の失効処理による計算負荷がかかる問題がある．本研究では，Trusted Execution Environment（TEE）を用いてユーザからも秘密鍵を秘匿することで，従来の計算負荷が高い失効処理をせずに，安全な鍵管理を可能とする属性ベース暗号システムの構築を目指す．本稿では，属性ベース暗号のオープンソースライブラリであるOpenABEを用いて，Intel SGXのTEE上における属性ベース暗号の復号処理の性能評価を行う．TEE上のOpenABEによる復号処理の性能は，ホスト環境での性能に大きく劣ることはなく，Intel SGXにおけるOpenABEの適用可能性が示された．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告システムソフトウェアとオペレーティング・システム（OS）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2025-05-14","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicVolumeNumber":"2025-OS-167"}]},"relation_version_is_last":true,"weko_creator_id":"80578"},"id":2002113,"updated":"2025-05-09T02:04:40.927547+00:00","links":{},"created":"2025-05-09T02:04:36.070262+00:00"}