{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00217059","sets":["1164:3925:10844:10845"]},"path":["10845"],"owner":"44499","recid":"217059","title":["An Isogeny-based Dealer-Less Threshold Signature Scheme"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-03-03"},"_buckets":{"deposit":"74adc045-676d-4102-b540-01af3afb1e5f"},"_deposit":{"id":"217059","pid":{"type":"depid","value":"217059","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"An Isogeny-based Dealer-Less Threshold Signature Scheme","author_link":["561570","561572","561573","561571"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"An Isogeny-based Dealer-Less Threshold Signature Scheme"},{"subitem_title":"An Isogeny-based Dealer-Less Threshold Signature Scheme","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"暗号","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2022-03-03","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Osaka University"},{"subitem_text_value":"Osaka University／Japan Advanced Institute of Science and Technology"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Osaka University","subitem_text_language":"en"},{"subitem_text_value":"Osaka University / Japan Advanced Institute of Science and Technology","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"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/217059/files/IPSJ-CSEC22096023.pdf","label":"IPSJ-CSEC22096023.pdf"},"date":[{"dateType":"Available","dateValue":"2024-03-03"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-CSEC22096023.pdf","filesize":[{"value":"657.3 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"30"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"96ad67c0-968a-4df3-b36f-40cf5816d31d","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2022 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yusen, Wang"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Atsuko, Miyaji"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yusen, Wang","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Atsuko, Miyaji","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11235941","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":"2188-8655","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"A threshold HHS [9] (Hard Homogeneous Spaces) signature scheme had been proposed by Luca De Feo et al [2]. Generally, CSI-FiSh [4] and its ancestors [1][8] can be adapted into this threshold scheme. In this work, we mainly focus on the basic version of CSI-FiSh proposed by Stolbunov [8]. In the isogeny-based threshold signature scheme sketched by Luca De Feo et al, a dealer is necessary in order to split the secret key into shares and to securely distribute them to all participants. However, in certain conditions, a trusted dealer which is a trusted third party is not permitted or does not exist. Therefore we proposed a dealer-less version based on the threshold scheme of Luca De Feo et al. We use Joint Random-Secret Sharing to let all participants exchange information with each other and thus can collaborate to generate a secret isogeny that is not revealed to any participants. In this work, we clarify some fundamental theories such as Hard Homogeneous Spaces, Joint Random-Secret Sharing, and Shamir's Secret Sharing. After that, we briefly take a review of the threshold HHS signature scheme proposed by Luca De Feo et al. We give the whole process of our dealer-less threshold scheme and then illustrate the comparison with the original one with a dealer. We believe that our dealer-less version has a wider range of applications.","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"A threshold HHS [9] (Hard Homogeneous Spaces) signature scheme had been proposed by Luca De Feo et al [2]. Generally, CSI-FiSh [4] and its ancestors [1][8] can be adapted into this threshold scheme. In this work, we mainly focus on the basic version of CSI-FiSh proposed by Stolbunov [8]. In the isogeny-based threshold signature scheme sketched by Luca De Feo et al, a dealer is necessary in order to split the secret key into shares and to securely distribute them to all participants. However, in certain conditions, a trusted dealer which is a trusted third party is not permitted or does not exist. Therefore we proposed a dealer-less version based on the threshold scheme of Luca De Feo et al. We use Joint Random-Secret Sharing to let all participants exchange information with each other and thus can collaborate to generate a secret isogeny that is not revealed to any participants. In this work, we clarify some fundamental theories such as Hard Homogeneous Spaces, Joint Random-Secret Sharing, and Shamir's Secret Sharing. After that, we briefly take a review of the threshold HHS signature scheme proposed by Luca De Feo et al. We give the whole process of our dealer-less threshold scheme and then illustrate the comparison with the original one with a dealer. We believe that our dealer-less version has a wider range of applications.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告コンピュータセキュリティ（CSEC）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2022-03-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"23","bibliographicVolumeNumber":"2022-CSEC-96"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":217059,"updated":"2025-01-19T15:38:19.308583+00:00","links":{},"created":"2025-01-19T01:17:34.002981+00:00"}