{"updated":"2025-01-19T23:19:00.643089+00:00","links":{},"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00194843","sets":["1164:4088:9695:9718"]},"path":["9718"],"owner":"44499","recid":"194843","title":["パブリックブロックチェーンを用いた正誤判定・結果共有システムの提案"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-02-28"},"_buckets":{"deposit":"3824765d-5a1d-482d-83fd-fa8a2c77df36"},"_deposit":{"id":"194843","pid":{"type":"depid","value":"194843","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"パブリックブロックチェーンを用いた正誤判定・結果共有システムの提案","author_link":["462314","462311","462317","462316","462310","462320","462321","462312","462319","462315","462318","462313"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"パブリックブロックチェーンを用いた正誤判定・結果共有システムの提案"},{"subitem_title":"A Decentralized Examination System using Public Blockchain Technologies","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"ブロックチェーン","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2019-02-28","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"三井住友フイナンシヤルグループ／日本総合研究所"},{"subitem_text_value":"三井住友フイナンシヤルグループ／日本総合研究所"},{"subitem_text_value":"三井住友フイナンシヤルグループ"},{"subitem_text_value":"ハウインターナシヨナル"},{"subitem_text_value":"日本総合研究所"},{"subitem_text_value":"chaintope"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Sumitomo Mitsui Financial Group, Inc. / The Japan Research Institute, Ltd.","subitem_text_language":"en"},{"subitem_text_value":"Sumitomo Mitsui Financial Group, Inc. / The Japan Research Institute, Ltd.","subitem_text_language":"en"},{"subitem_text_value":"Sumitomo Mitsui Financial Group, Inc.","subitem_text_language":"en"},{"subitem_text_value":"HAW International Inc.","subitem_text_language":"en"},{"subitem_text_value":"The Japan Research Institute, Ltd.","subitem_text_language":"en"},{"subitem_text_value":"chaintope Inc.","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/194843/files/IPSJ-IOT19044034.pdf","label":"IPSJ-IOT19044034.pdf"},"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-IOT19044034.pdf","filesize":[{"value":"921.2 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"43"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_login","version_id":"5428bc9e-16ce-4356-928d-cc86f89e5930","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2019 by the Institute of Electronics, Information and Communication Engineers This SIG report is only available to those in membership of the SIG."}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"金子, 雄介"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"田中, 俊太郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"木村, 智行"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"奥村, 潤"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"長田, 繁幸"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"安土, 茂亨"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yusuke, Kaneko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Shuntaro, Tanaka","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tomoyuki, Kimura","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Jun, Okumura","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Shigeyuki, Osada","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Shigeyuki, Azuchi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12326962","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":"2188-8787","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"能力判定等のための試験システムにおいて，正誤判定ロジックは非公開であることが多いため，出題者や採点者による誤りがあった場合，その検出は極めて難しい．本稿は，中央集権者をもたないパブリックブロックチェーンを活用することで，信頼性と透明性を高めた持続可能な試験システムを提案し，その実装例を示す．提案法では，正答のハシシュ値と正誤判定条件，正誤判定の結果をブロックチェーンに記録し，事後の改竄を事実上不可能とした．提案法を Bitcoin Core を用いて実装し，100 名規模の CTF (Capture The Flag) で実験的に用いた結果，実用上支障なく利用できることを確認した．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"In the examination system for capability evaluation or the like, it is very difficult to detect errors or mistakes by test givers and scorers, since the correct / incorrect decision logic is often not undisclosed. In this paper, we propose a sustainable examination system with enhanced reliability and transparency by utilizing a public blockchain without centralized authority, and show an implementation example. In our proposed method, the hash value of the correct answer, the decision condition and the decision result are recorded in the blockchain which is practically impossible to be tampered with afterwards. We implemented our proposed method using Bitcoin Core and used it on over 100 people scale CTF (Capture The Flag) competition, and we confirmed it worked without any fatal issues in practical use.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告インターネットと運用技術（IOT）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2019-02-28","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"34","bibliographicVolumeNumber":"2019-IOT-44"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":194843,"created":"2025-01-19T00:59:52.273919+00:00"}