{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00212920","sets":["6164:6165:6640:10712"]},"path":["10712"],"owner":"44499","recid":"212920","title":["IoTデバイスにおける準同型暗号を用いた暗号化手法の比較"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-06-23"},"_buckets":{"deposit":"ec081e54-b33c-4041-b0eb-9cc43b814d27"},"_deposit":{"id":"212920","pid":{"type":"depid","value":"212920","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"IoTデバイスにおける準同型暗号を用いた暗号化手法の比較","author_link":["543958","543957"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"IoTデバイスにおける準同型暗号を用いた暗号化手法の比較"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"暗号・署名","subitem_subject_scheme":"Other"}]},"item_type_id":"18","publish_date":"2021-06-23","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":"お茶の水女子大学"},{"subitem_text_value":"お茶の水女子大学"}]},"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/212920/files/IPSJ-DICOMO2021022.pdf","label":"IPSJ-DICOMO2021022.pdf"},"date":[{"dateType":"Available","dateValue":"2023-06-23"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-DICOMO2021022.pdf","filesize":[{"value":"1.3 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":"44"}],"accessrole":"open_date","version_id":"151fa26d-660f-4a7a-8d13-1272461e976a","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2021 by the Information Processing Society of Japan"}]},"item_18_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"松本, 茉倫"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小口, 正人"}],"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":"IoT デバイスで取得したセンサデータの中には，秘匿性が高いデータが存在しており，安全とは言えないクラウドサーバ上では情報漏洩に備えて，個人情報を保護する必要がある．そこで，暗号文同士の加算・乗算が任意回数可能な Leveled 準同型暗号 (以下 LHE:  Leveled Homomorphic Encryption) が注目されている．LHE によって，IoT デバイスで個人情報を暗号化しクラウドサーバで暗号化したまま分析，データ分析者が分析結果を復号することが可能になる．しかし，LHEによる暗号化は時間がかかり，暗号文サイズが大きいため通信量が大きくなってしまうことが計算能力の低い IoT デバイス上での実装の課題となっている．本稿では，スマートフォンで取得したデータのクラウドサーバを使ったデータ活用を想定してシステムデザインを 3 つ実装し，IoT デバイスへの負荷・クラウドサーバへの負荷・通信量の 3 つの指標で比較した．","subitem_description_type":"Other"}]},"item_18_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"162","bibliographic_titles":[{"bibliographic_title":"マルチメディア，分散協調とモバイルシンポジウム2021論文集"}],"bibliographicPageStart":"156","bibliographicIssueDates":{"bibliographicIssueDate":"2021-06-23","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicVolumeNumber":"2021"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":212920,"updated":"2025-01-19T17:19:56.967905+00:00","links":{},"created":"2025-01-19T01:13:50.615208+00:00"}