<?xml version='1.0' encoding='UTF-8'?>
<OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd">
  <responseDate>2026-06-07T07:34:19Z</responseDate>
  <request metadataPrefix="jpcoar_1.0" verb="GetRecord" identifier="oai:ipsj.ixsq.nii.ac.jp:00227043">https://ipsj.ixsq.nii.ac.jp/oai</request>
  <GetRecord>
    <record>
      <header>
        <identifier>oai:ipsj.ixsq.nii.ac.jp:00227043</identifier>
        <datestamp>2025-01-19T12:17:45Z</datestamp>
        <setSpec>1164:6389:11170:11294</setSpec>
      </header>
      <metadata>
        <jpcoar:jpcoar xmlns:datacite="https://schema.datacite.org/meta/kernel-4/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcndl="http://ndl.go.jp/dcndl/terms/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:jpcoar="https://github.com/JPCOAR/schema/blob/master/1.0/" xmlns:oaire="http://namespace.openaire.eu/schema/oaire/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rioxxterms="http://www.rioxx.net/schema/v2.0/rioxxterms/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="https://github.com/JPCOAR/schema/blob/master/1.0/" xsi:schemaLocation="https://github.com/JPCOAR/schema/blob/master/1.0/jpcoar_scm.xsd">
          <dc:title>安全性帰着がタイトな同種写像に基づくIDベース署名方式</dc:title>
          <dc:title xml:lang="en">An Identity-based Signature Scheme with Tight Security Reduction</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName>陳, 加偉</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>趙, 亨騄</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>佐藤, 慎悟</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>四方, 順司</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Jiawei, Chen</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Hyungrok, Jo</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Shingo, Sato</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Junji, Shikata</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:subject subjectScheme="Other">ISEC</jpcoar:subject>
          <datacite:description descriptionType="Other">本論文では，超特異楕円曲線の同種写像問題に基づく，安全性帰着がタイトな ID ベース署名 (Identity-based Signature, IBS) 方式を提案する．既存方式として Shaw とDutta によって同種写像ベース IBS の直接的な構成が提案されたが，その安全性証明はタイトでない．これを改善するため，タイトな安全性を達成する同種写像ベース署名方式 Lossy CSI-FiSh を用いる．Lossy CSI-FiSh に基づいた IBS 方式を提案し，この方式に対してタイトな安全性証明を示す．さらに，適切なパラメータ設定の下で鍵サイズと署名サイズの比較・解析を行う．</datacite:description>
          <datacite:description descriptionType="Other">In this paper, we propose an identity-based signature (IBS) scheme based on the supersingular isogeny problem, with tightly security reduction. While Shaw and Dutta have proposed a direct construction of isogeny-based IBS as an existing scheme, its security proof is not tight. To address this issue, we utilize a tightly secure isogeny-based signature scheme Lossy CSI-FiSh. We present an IBS scheme based on the Lossy CSI-FiSh scheme and provide a tight security proof for this scheme. Furthermore, we conduct a comparative analysis of key size and signature size for the isogeny-based IBS scheme under suitable parameter settings. The full version of this paper will be appeared in the proceedings of the 14th International Conference on Post-Quantum Cryptography (PQCrypto 2023).</datacite:description>
          <dc:publisher xml:lang="ja">情報処理学会</dc:publisher>
          <datacite:date dateType="Issued">2023-07-17</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_18gh">technical report</dc:type>
          <jpcoar:identifier identifierType="URI">https://ipsj.ixsq.nii.ac.jp/records/227043</jpcoar:identifier>
          <jpcoar:sourceIdentifier identifierType="ISSN">2188-8671</jpcoar:sourceIdentifier>
          <jpcoar:sourceIdentifier identifierType="NCID">AA12628305</jpcoar:sourceIdentifier>
          <jpcoar:sourceTitle>研究報告セキュリティ心理学とトラスト（SPT）</jpcoar:sourceTitle>
          <jpcoar:volume>2023-SPT-52</jpcoar:volume>
          <jpcoar:issue>36</jpcoar:issue>
          <jpcoar:pageStart>1</jpcoar:pageStart>
          <jpcoar:pageEnd>8</jpcoar:pageEnd>
          <jpcoar:file>
            <jpcoar:URI label="IPSJ-SPT23052036.pdf">https://ipsj.ixsq.nii.ac.jp/record/227043/files/IPSJ-SPT23052036.pdf</jpcoar:URI>
            <jpcoar:mimeType>application/pdf</jpcoar:mimeType>
            <jpcoar:extent>964.0 kB</jpcoar:extent>
          </jpcoar:file>
        </jpcoar:jpcoar>
      </metadata>
    </record>
  </GetRecord>
</OAI-PMH>
