{"links":{},"id":83930,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00083930","sets":["581:6644:6865"]},"path":["6865"],"owner":"11","recid":"83930","title":["TPMを用いたオフライン型タイムスタンプ"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-09-15"},"_buckets":{"deposit":"8813e9ae-9526-4126-93fb-12f164d63d32"},"_deposit":{"id":"83930","pid":{"type":"depid","value":"83930","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"TPMを用いたオフライン型タイムスタンプ","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"TPMを用いたオフライン型タイムスタンプ"},{"subitem_title":"Offline TimeStamp Using TPM","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"[特集：スマートな社会を実現するコンピュータセキュリティ技術] 時刻認証，タイムスタンプ，オフライン型，TPM","subitem_subject_scheme":"Other"}]},"item_type_id":"2","publish_date":"2012-09-15","item_2_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"岐阜大学"},{"subitem_text_value":"名古屋工業大学"},{"subitem_text_value":"岐阜大学"},{"subitem_text_value":"名古屋工業大学"},{"subitem_text_value":"株式会社豊通シスコム"}]},"item_2_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Gifu University","subitem_text_language":"en"},{"subitem_text_value":"Nagoya Institute of Technology","subitem_text_language":"en"},{"subitem_text_value":"Gifu University","subitem_text_language":"en"},{"subitem_text_value":"Nagoya Institute of Technology","subitem_text_language":"en"},{"subitem_text_value":"Toyotsu Syscom Corp.","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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/83930/files/IPSJ-JNL5309009.pdf"},"date":[{"dateType":"Available","dateValue":"2014-09-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-JNL5309009.pdf","filesize":[{"value":"1.7 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":"8"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"7a55b260-7cad-4e22-a525-dd9ff826e0c0","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2012 by the Information Processing Society of Japan"}]},"item_2_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"掛井将平"},{"creatorName":"脇田, 知彦"},{"creatorName":"毛利公美"},{"creatorName":"白石, 善明"},{"creatorName":"野口, 亮司"}],"nameIdentifiers":[{}]}]},"item_2_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Shohei, Kakei","creatorNameLang":"en"},{"creatorName":"Tomohiko, Wakita","creatorNameLang":"en"},{"creatorName":"Masami, Mohri","creatorNameLang":"en"},{"creatorName":"Yoshiaki, Shiraishi","creatorNameLang":"en"},{"creatorName":"Ryoji, Noguchi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_2_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00116647","subitem_source_identifier_type":"NCID"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_6501","resourcetype":"journal article"}]},"item_2_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-7764","subitem_source_identifier_type":"ISSN"}]},"item_2_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"電子署名に基づくタイムスタンプ・プロトコル（PKI TSP）がRFC3161で標準化されている．PKI TSPでは，信頼できる第三者機関であるTSA（Time Stamping Authority）が時刻認証を行う．このような時刻認証がTSAに依存するモデルでは，クライアントが時刻認証要求を出したときに通信ができないと時刻認証ができない．そこで本論文では，クライアントがTSAと通信できないときにも時刻認証ができるオフライン型タイムスタンプ方式を提案する．提案方式では，PKI TSPで定義されているTSAが時刻認証の権限をセキュリティチップTPM（Trusted Platform Module）を用いて認証した端末に委譲し，その端末がTPMの機能を用いて時刻認証を行う．認証された時刻の安全性について評価し，提案方式はTPMを用いることで時刻の改ざん・偽造が検知できることを示している．","subitem_description_type":"Other"}]},"item_2_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Public Key Infrastructure Time-Stamp Protocol (PKI TSP) is standardized in RFC3161. In the PKI TSP, a TSA (Time Stamping Authority), which is a trusted third party, authenticates the time-stamp. In this model, the time-stamp authentication depends on the TSA, and a client must be in online status. This paper proposes an offline time-stamp scheme. The proposed scheme authenticates the time-stamp, even when a client cannot communicate with the TSA. The TSA delegates the authority of time-stamp authentication to a client which has been authenticated by a certification authority (CA) using a TPM (Trusted Platform Module). Then a client authenticates the time-stamp using the TPM. The paper also shows that the proposed scheme using the TPM can detect the falsification and forgery of the time.","subitem_description_type":"Other"}]},"item_2_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"2129","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌"}],"bibliographicPageStart":"2117","bibliographicIssueDates":{"bibliographicIssueDate":"2012-09-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"9","bibliographicVolumeNumber":"53"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"created":"2025-01-18T23:37:16.735462+00:00","updated":"2025-01-21T18:06:24.948553+00:00"}