<?xml version="1.0" encoding="UTF-8"?>
<article article-type="Research Article">
  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher">journal-of-information-and-optimization-sciences</journal-id>
      <journal-title-group>
        <journal-title>Journal of Information and Optimization Sciences</journal-title>
      </journal-title-group>
      <issn publication-format="electronic">2169-0103</issn>
      <issn publication-format="print">0252-2667</issn>
      <publisher>
        <publisher-name>Taru Publications</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.47974/JIOS-1607</article-id>
      <title-group>
        <article-title>A new bilinear pairing-based searchable encryption scheme</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Noorallahzadeh</surname>
            <given-names>M. H.</given-names>
          </name>
          <aff>Department of Mathematics, Faculty of Mathematical Sciences, University of Qom, Qom, Iran</aff>
        </contrib>
        <contrib contrib-type="author" corresp="yes">
          <name>
            <surname>Alimoradi</surname>
            <given-names>R.</given-names>
          </name>
          <aff>Department of Computer Science, Faculty of Science, University of Qom, Qom, Iran</aff>
        </contrib>
      </contrib-group>
      <volume>47</volume>
      <issue>4</issue>
      <fpage>1377</fpage>
      <lpage>1396</lpage>
      <pub-date date-type="pub">
        <day>02</day>
        <month>02</month>
        <year>2026</year>
      </pub-date>
      <abstract>
        <p>The searchable encryption scheme is employed to address privacy and data confidentiality issues in outsourced databases. It enables users to send encrypted search queries containing a keyword to a server, which then returns all encrypted documents containing the specified keyword without learning additional information about the queries or documents. Boneh et al. [2] proposed a scheme for searching encrypted keywords without leaking information about the keywords and original documents. A unique technique for public-key encryption with keyword search (PEKS) has been presented in this paper, leveraging the power of bilinear pairings, offering better performance than [2] due to not using pairing operation in the encryption. Our scheme can also search conjunctive keywords simultaneously without leaking information and does not require the establishment of a secure channel, known as the secure channel free scheme. Additionally, we introduce a highly efficient SSE scheme that enables advanced conjunctive search capabilities. The innovative approach has been thoroughly examined and verified to be secure.</p>
      </abstract>
      <kwd-group>
        <kwd>Searchable encryption</kwd>
        <kwd>Cryptography based on pairings</kwd>
        <kwd>Conjunctive keyword search</kwd>
      </kwd-group>
      <custom-meta-group>
        <custom-meta>
          <meta-name>access</meta-name>
          <meta-value>open</meta-value>
        </custom-meta>
        <custom-meta>
          <meta-name>retracted</meta-name>
          <meta-value>no</meta-value>
        </custom-meta>
      </custom-meta-group>
    </article-meta>
  </front>
</article>
