{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00216654","sets":["1164:6389:10832:10833"]},"path":["10833"],"owner":"44499","recid":"216654","title":["Online/Offline Accountable Subgroup Multisignature"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-02-28"},"_buckets":{"deposit":"141915aa-27c2-40af-888d-6ee4391fd703"},"_deposit":{"id":"216654","pid":{"type":"depid","value":"216654","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"Online/Offline Accountable Subgroup Multisignature","author_link":["559558","559557","559559","559556","559560","559561"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Online/Offline Accountable Subgroup Multisignature"},{"subitem_title":"Online/Offline Accountable Subgroup Multisignature","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"ICSS","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2022-02-28","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"大阪大学工学部電子情報工学科"},{"subitem_text_value":"大阪大学大学院工学研究科"},{"subitem_text_value":"北陸先端科学技術大学院大学"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Department of Electronic and Information Engineering，Osaka University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Engineering，Osaka University","subitem_text_language":"en"},{"subitem_text_value":"Japan Advanced Institute of Science and Technology","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/216654/files/IPSJ-SPT22046011.pdf","label":"IPSJ-SPT22046011.pdf"},"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-SPT22046011.pdf","filesize":[{"value":"1.6 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"46"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_login","version_id":"d33a61da-eb00-412e-b4b6-4f0a4649786b","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2022 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":"山下, 慎太郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tian, Yangguang"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"宮地, 充子"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Shintaro, Yamashita","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tian, Yangguang","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":"AA12628305","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":"2188-8671","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"ASM（Accountable Subgroup Multisignature）は，あるグループのなかの任意の部分集合（サブグループ）の署名者が，グループを代表してメッセージについての多重署名を作成することを可能にした．特に，サブグループの 署名者は，各々が必ず署名を行わなければならない．最近，Boneh らは署名圧縮と公開鍵集約を保証する BLS 署名からなる署名長がコンパクトな ASM 方式を提案した．本研究では，Online/Offline の概念を追加した署名生成をサポートする新しい ASM 方式を紹介する．Online とはブロックチェーンのノードと署名者が通信状態にあることを指し， Offline とは通信していない状態のことを指す．本提案は Online 段階で，ある特定の代表者がハッシュ関数の衝突発見処理を行うことのみを必要とし，Boneh らが提案した ASM における Online 処理数を削減することを目的としている．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Accountable Subgroup Multisignature (ASM) enables any subgroup of signers from a group to produce a multi-signature for a message on behalf of the group. In particular, the subgroup of signers is held accountable for the signed message. Recently, Boneh et al.proposed a compact AMS scheme from BLS signatures ensuring signature compression and public-key aggregation. In this work, we introduce a new ASM scheme that supports the online/offline signing process. Our scheme is based on Boneh et al.’s ASM scheme and the standard discrete-logarithm chameleon hash functions. We allow signature compression and public-key aggregation to be performed offline. Online signing only requires a signer from the group to perform a collision-finding process when a real message is available without modifying the compressed signature.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告セキュリティ心理学とトラスト（SPT）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2022-02-28","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"11","bibliographicVolumeNumber":"2022-SPT-46"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":216654,"updated":"2025-01-19T15:46:49.353022+00:00","links":{},"created":"2025-01-19T01:17:10.558058+00:00"}