{"id":240861,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00240861","sets":["6164:6165:6462:11854"]},"path":["11854"],"owner":"11","recid":"240861","title":["失効可能グループ署名におけるSPS-EQ署名を用いた失効リストと署名のサイズ削減"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-10-15"},"_buckets":{"deposit":"c1e94d17-6dcc-440d-a45b-926379e4ee5f"},"_deposit":{"id":"240861","pid":{"type":"depid","value":"240861","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"失効可能グループ署名におけるSPS-EQ署名を用いた失効リストと署名のサイズ削減","author_link":["661795","661796","661797","661798","661799","661800"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"失効可能グループ署名におけるSPS-EQ署名を用いた失効リストと署名のサイズ削減","subitem_title_language":"ja"},{"subitem_title":"Reducing Revocation List Size and Signature Length in Revocable Group Signatures Using SPS-EQ","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"失効可能グループ署名, SPS-EQ 署名, セットコミットメント","subitem_subject_scheme":"Other"}]},"item_type_id":"18","publish_date":"2024-10-15","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":"広島大学大学院先進理工系科学研究科"},{"subitem_text_value":"広島大学大学院先進理工系科学研究科"},{"subitem_text_value":"広島大学大学院先進理工系科学研究科"}]},"item_18_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Hiroshima University","subitem_text_language":"en"},{"subitem_text_value":"Hiroshima University","subitem_text_language":"en"},{"subitem_text_value":"Hiroshima University","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/240861/files/IPSJ-CSS2024115.pdf","label":"IPSJ-CSS2024115.pdf"},"date":[{"dateType":"Available","dateValue":"2026-10-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-CSS2024115.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":"30"},{"tax":["include_tax"],"price":"0","billingrole":"46"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"e2d8340c-c819-44cd-b60b-442db8607338","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2024 by the Information Processing Society of Japan"}]},"item_18_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"米澤, 優華"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"中西, 透"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"北須賀, 輝明"}],"nameIdentifiers":[{}]}]},"item_18_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yuka, Yonezawa","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Toru, Nakanishi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Teruaki, Kitasuka","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":"現在のIDベースのユーザ認証は，ユーザIDで利用履歴を追跡できるため，プライバシー問題が発生する可能性がある．その解決策として, 匿名性をもつグループ署名が研究されているが，失効確認が容易でないため，多数の失効可能グループ署名方式が提案されている．本研究では，従来方式と同等に失効リストのサイズを削減しながら署名長も削減するために，ゼロ知識証明を必要とせず，ランダマイズ可能なSPS-EQ署名とセットコミットメントを用いた方式を提案し，その有用性を評価する．","subitem_description_type":"Other"}]},"item_18_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Current ID-based user authentications allow a server to track service usage history of each user through the user ID, which raises privacy concerns. To address this issue, group signatures with the anonymity of signers have been researched. However, revocation confirmation is not easy, and thus various revocable group signature schemes have been proposed. In this paper, we propose a revocable group signature scheme where both the revocation list size and the signature length are reduced by using randomizable SPS-EQ and set commitments without requiring zero-knowledge proofs. The effectiveness of the proposed scheme is evaluated through an implementation.","subitem_description_type":"Other"}]},"item_18_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"860","bibliographic_titles":[{"bibliographic_title":"コンピュータセキュリティシンポジウム2024論文集"}],"bibliographicPageStart":"853","bibliographicIssueDates":{"bibliographicIssueDate":"2024-10-15","bibliographicIssueDateType":"Issued"}}]},"relation_version_is_last":true,"weko_creator_id":"11"},"updated":"2025-03-06T05:34:47.065855+00:00","created":"2025-01-19T01:45:17.645062+00:00","links":{}}