{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00034813","sets":["1164:2836:2870:2875"]},"path":["2875"],"owner":"1","recid":"34813","title":["サーバ・クライアント間の同期型情報管理によるソフトウェア保護"],"pubdate":{"attribute_name":"公開日","attribute_value":"2002-02-14"},"_buckets":{"deposit":"7a718b4f-0eed-4983-98f7-0bf1d775a250"},"_deposit":{"id":"34813","pid":{"type":"depid","value":"34813","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"サーバ・クライアント間の同期型情報管理によるソフトウェア保護","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"サーバ・クライアント間の同期型情報管理によるソフトウェア保護"},{"subitem_title":"A software protection by synchsronized information management between server and client","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2002-02-14","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"静岡大学大学院情報学研究科"},{"subitem_text_value":"静岡大学情報学部情報科学科"},{"subitem_text_value":"岩手県立大学ソフトウェア情報学部"},{"subitem_text_value":"三菱電機情報システム製作所"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate school of Information, Shizuoka University","subitem_text_language":"en"},{"subitem_text_value":"Graduate school of Information, Shizuoka University","subitem_text_language":"en"},{"subitem_text_value":"Department of Computer Science, Faculty of Information, Shizuoka University","subitem_text_language":"en"},{"subitem_text_value":"Faculty of Software and Information, Iwate Prefectural 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 file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/34813/files/IPSJ-DPS01106045.pdf"},"date":[{"dateType":"Available","dateValue":"2004-02-14"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-DPS01106045.pdf","filesize":[{"value":"1.1 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":"34"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"20ec1fed-c15d-4e7c-8914-16ef60ce1012","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2002 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"中村, 直己"},{"creatorName":"西垣, 正勝"},{"creatorName":"曽我, 正和"},{"creatorName":"田窪, 昭夫"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Naoki, Nakamura","creatorNameLang":"en"},{"creatorName":"Masakatsu, Nishigaki","creatorNameLang":"en"},{"creatorName":"Masakazu, Soga","creatorNameLang":"en"},{"creatorName":"Akio, Takubo","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10116224","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_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"一般的なソフトウェアの不正使用を防止するために導入されている本人認証のフェーズは、ソフトウェアの主目的処理とは独立していることがほとんどであり、プログラムの改造によって容易にバイパスされてしまう。また、正規ユーザであることを示すパスワード等は単なるマジックワードであることが多く、正規ユーザからパスワードが漏洩するという本質的な問題があった。そこで本稿では、サーバ・クライアント型ソフトウェアをベースに、サーバ・クライアント間で共有する情報を動的に変動させる方式を提案する。サーバ・クライアント間の情報を同期させることにより、認証フェーズとソフトウェアの主目的である処理を密接に結合し、かつ、正規ユーザがパスワードを漏らした場合に本人にデメリットが生じるようにすることができる。","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Application softwares have a user authentication process to prevent the illegal use. However, it is not difficult for a cracker to disable the protection, since the user authentication is generally a extra process for the main routine of the software. Moreover, in this kind of user authentication, the passwords are often leaked out from legal users, since a legal user who leaks out his/her password will not incur any demerit. This paper proposes a software protection using synchronized information management between server and client. By synchronizing server's and client's information, a) the user authentication process can be an indispensable part of the main routine, and b) it is possible to punish the legal user who leaks out his/her password.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"270","bibliographic_titles":[{"bibliographic_title":"情報処理学会研究報告マルチメディア通信と分散処理（DPS）"}],"bibliographicPageStart":"265","bibliographicIssueDates":{"bibliographicIssueDate":"2002-02-14","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"12(2001-DPS-106)","bibliographicVolumeNumber":"2002"}]},"relation_version_is_last":true,"weko_creator_id":"1"},"id":34813,"updated":"2025-01-22T15:02:03.015230+00:00","links":{},"created":"2025-01-18T23:03:18.555897+00:00"}