{"links":{},"id":237247,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00237247","sets":["1164:3925:11477:11663"]},"path":["11663"],"owner":"44499","recid":"237247","title":["Arm TrustZoneのワールド間におけるPOSIX APIを用いた安全な協調実行"],"pubdate":{"attribute_name":"公開日","attribute_value":"2024-07-15"},"_buckets":{"deposit":"690da0ce-caf6-40bb-86e2-3b83389e68a2"},"_deposit":{"id":"237247","pid":{"type":"depid","value":"237247","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"Arm TrustZoneのワールド間におけるPOSIX APIを用いた安全な協調実行","author_link":["649197","649196"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Arm TrustZoneのワールド間におけるPOSIX APIを用いた安全な協調実行"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"IPSJ-CSEC","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2024-07-15","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"九州工業大学"},{"subitem_text_value":"九州工業大学"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Kyushu Institute of Technology","subitem_text_language":"en"},{"subitem_text_value":"Kyushu Institute of Technology","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/237247/files/IPSJ-CSEC24106041.pdf","label":"IPSJ-CSEC24106041.pdf"},"date":[{"dateType":"Available","dateValue":"2026-07-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-CSEC24106041.pdf","filesize":[{"value":"1.2 MB"}],"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":"44"}],"accessrole":"open_date","version_id":"f11988a0-8ea5-4e1e-94e6-4e6606181cbb","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2024 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, 太陽"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"光来, 健一"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11235941","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":"2188-8655","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"近年，クラウドのアプリケーションをユーザの近くで実行するエッジコンピューティングが普及してきている．信頼できないエッジデバイスにおいても Arm TrustZone を用いることにより，クラウドアプリケーションをセキュアワールドで TA として安全に実行することができる．しかし，セキュアワールドは高い権限を持つため，アプリケーションに脆弱性があるとシステム全体に影響が及ぶ恐れがある．そのため，アプリケーションの大部分はノーマルワールドで CA として実行するのが望ましいが，CA と TA を連携させるには専用 API を用いる必要があり，柔軟な協調は容易ではない．本稿では，アプリケーションを TrustZone の 2 つのワールドに分割し，ワールド間で POSIX API を用いて協調実行を行うシステム TZmediator を提案する．TZmediator は保護する必要がある処理のみをセキュアワールドで実行し，それ以外の処理はノーマルワールドで実行する．ワールド間にまたがって通信を行えるようにするために，ノーマルワールド内に TA に対応するシャドウプロセスを作成し，TA による POSIX API の呼び出しを代理で実行させる．OP-TEE を用いて TZmediator を実装し，CA と TA 間で POSIX API を用いてデータを送受信する際の通信性能を調べた．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"8","bibliographic_titles":[{"bibliographic_title":"研究報告コンピュータセキュリティ（CSEC）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2024-07-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"41","bibliographicVolumeNumber":"2024-CSEC-106"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:39:46.189584+00:00","updated":"2025-01-19T08:56:41.320226+00:00"}