{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00208473","sets":["6164:6165:6462:10428"]},"path":["10428"],"owner":"44499","recid":"208473","title":["A New Variant of Unbalanced Oil and Vinegar Using Quotient Ring: QR-UOV"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-10-19"},"_buckets":{"deposit":"f2caa000-087f-4278-9d02-7814b307ffcb"},"_deposit":{"id":"208473","pid":{"type":"depid","value":"208473","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"A New Variant of Unbalanced Oil and Vinegar Using Quotient Ring: QR-UOV","author_link":["522964","522967","522962","522966","522963","522969","522965","522968"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"A New Variant of Unbalanced Oil and Vinegar Using Quotient Ring: QR-UOV"},{"subitem_title":"A New Variant of Unbalanced Oil and Vinegar Using Quotient Ring: QR-UOV","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"post-quantum cryptography，multivariate cryptography，unbalanced oil and vinegar，quotient ring","subitem_subject_scheme":"Other"}]},"item_type_id":"18","publish_date":"2020-10-19","item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_18_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"The University of Tokyo"},{"subitem_text_value":"Kyushu University"},{"subitem_text_value":"NTT Secure Platform Laboratories"},{"subitem_text_value":"The University of Tokyo"}]},"item_18_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"The University of Tokyo","subitem_text_language":"en"},{"subitem_text_value":"Kyushu University","subitem_text_language":"en"},{"subitem_text_value":"NTT Secure Platform Laboratories","subitem_text_language":"en"},{"subitem_text_value":"The University of Tokyo","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/208473/files/IPSJCSS2020045.pdf","label":"IPSJCSS2020045.pdf"},"date":[{"dateType":"Available","dateValue":"2022-10-19"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJCSS2020045.pdf","filesize":[{"value":"458.9 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":"46"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"ef2494a5-7cd3-4988-ac38-0889f949ee5e","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2020 by the Information Processing Society of Japan"}]},"item_18_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Hiroki, Furue"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yasuhiko, Ikematsu"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yutaro, Kiyomura"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tsuyoshi, Takagi"}],"nameIdentifiers":[{}]}]},"item_18_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Hiroki, Furue","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yasuhiko, Ikematsu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yutaro, Kiyomura","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tsuyoshi, Takagi","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_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Unbalanced oil and vinegar signature scheme (UOV) is known as one of the securest multivariate signature schemes, but a disadvantage of UOV is its large public key.<br>In this paper, we propose a new variant of UOV with the public key represented by block matrices whose components are represented as an element of a quotient ring.<br>We discuss how the irreducibility of the polynomial generating the quotient ring affects the security of our proposed scheme.<br>Furthermore, we investigate secure parameters of our proposed scheme against the previously known and possible attacks.<br>As a result, our proposed scheme is able to reduce public key size without increasing signature size comparing with other variants of UOV.<br>For example, the public key of our proposed scheme is 66.7 KB in security level IV of NIST PQC project, whereas that of cyclic Rainbow is 252.3 KB.","subitem_description_type":"Other"}]},"item_18_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"331","bibliographic_titles":[{"bibliographic_title":"コンピュータセキュリティシンポジウム2020論文集"}],"bibliographicPageStart":"324","bibliographicIssueDates":{"bibliographicIssueDate":"2020-10-19","bibliographicIssueDateType":"Issued"}}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"updated":"2025-01-19T18:51:05.996543+00:00","created":"2025-01-19T01:09:51.884805+00:00","links":{},"id":208473}