{"updated":"2025-01-21T16:04:31.518742+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00090392","sets":["6164:6165:7006:7083"]},"path":["7083"],"owner":"11","recid":"90392","title":["クラウドスケジュールサービスにおける日付偽装のための鍵共有方式の検討"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-10-10"},"_buckets":{"deposit":"ee4f0a0c-ea35-4d06-9856-72004e054ce3"},"_deposit":{"id":"90392","pid":{"type":"depid","value":"90392","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"クラウドスケジュールサービスにおける日付偽装のための鍵共有方式の検討","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"クラウドスケジュールサービスにおける日付偽装のための鍵共有方式の検討"},{"subitem_title":"Calendar sharing with alteration method on public cloud","subitem_title_language":"en"}]},"item_type_id":"18","publish_date":"2012-10-10","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":"法政大学大学院"},{"subitem_text_value":"法政大学大学院"},{"subitem_text_value":"法政大学大学院"},{"subitem_text_value":"千葉工業大学"},{"subitem_text_value":"東京大学"}]},"item_18_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Hosei University","subitem_text_language":"en"},{"subitem_text_value":"Hosei University","subitem_text_language":"en"},{"subitem_text_value":"Hosei University","subitem_text_language":"en"},{"subitem_text_value":"Chiba Institute of Technology","subitem_text_language":"en"},{"subitem_text_value":"The University of Tokyo","subitem_text_language":"en"}]},"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/90392/files/IPSJ-DPSWS2012045.pdf"},"date":[{"dateType":"Available","dateValue":"2012-10-10"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-DPSWS2012045.pdf","filesize":[{"value":"1.4 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"cbe9605b-f021-4d67-9a89-de0f85063994","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2012 by the Information Processing Society of Japan"}]},"item_18_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"横谷, 百合"},{"creatorName":"宮上, 達矢"},{"creatorName":"金井, 敦"},{"creatorName":"谷本, 茂明"},{"creatorName":"佐藤, 周行"}],"nameIdentifiers":[{}]}]},"item_18_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yuri, Yokotani","creatorNameLang":"en"},{"creatorName":"Tatsuya, Miyagami","creatorNameLang":"en"},{"creatorName":"Atsushi, Kanai","creatorNameLang":"en"},{"creatorName":"Shigeaki, Tanimoto","creatorNameLang":"en"},{"creatorName":"Hiroyuki, Sato","creatorNameLang":"en"}],"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":"近年，新しい大規模分散処理システムとて知られる 「クラウドコンピューティング」 の普及が急速に進んでいる．しかし，クラウドサービスの管理者は信頼出来ない可能性もあり，セキュリティにおいて問題点がある．それ故，機密情報を扱う企業においてパブリッククラウドはあまり利用されていない．この問題に対応するために，クラウドスケジュールサビースを例にとり，日付の偽装を行うことで，信頼きないクラウド管理者への対策を行うことで，信頼きないクラウド管理者への対策を実現する方式・偽装アルゴリズムが提案されているが，アルゴリズム上必要となる日付偽装のための鍵は偽装と復号に同じ共通鍵を用いている．このため，システムを利用し複数人からなるグループでクラウドスケジュールサービスを共有しようとすると，偽装鍵も共有する必要があり，利便性に問題がある．これに対し，本論文では，秘密分散法を用いることにより，共有すべき偽装のため鍵を直接共有することなく，スケジュールサービスの共有をより容易に実現，管理する方式関して提案し，有効であることを示す．","subitem_description_type":"Other"}]},"item_18_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Cloud Computing has become more familiar. However, a cloud service administrator may be untrustworthy. Therefore it is difficult for companies dealing with confidential information to use a public cloud. In order to solve this problem, a data-alteration method has been proposed. It realizes preventing a leakage of private information from a cloud schedule service by using alteration algorithm with a key. In this paper, we propose sharing schedule data conveniently by using secret sharin g system. Consequently, we can share the schedule data without sharing key of alteration directly, and easily management in the case of member management.","subitem_description_type":"Other"}]},"item_18_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"283","bibliographic_titles":[{"bibliographic_title":"マルチメディア通信と分散処理ワークショップ論文集"}],"bibliographicPageStart":"278","bibliographicIssueDates":{"bibliographicIssueDate":"2012-10-10","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicVolumeNumber":"2012"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"created":"2025-01-18T23:39:58.875461+00:00","id":90392,"links":{}}