<?xml version="1.0" encoding="utf-8"?>
<TEI xmlns="http://www.tei-c.org/ns/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:hal="http://hal.archives-ouvertes.fr/" xmlns:gml="http://www.opengis.net/gml/3.3/" xmlns:gmlce="http://www.opengis.net/gml/3.3/ce" version="1.1" xsi:schemaLocation="http://www.tei-c.org/ns/1.0 http://api.archives-ouvertes.fr/documents/aofr-sword.xsd">
  <teiHeader>
    <fileDesc>
      <titleStmt>
        <title>HAL TEI export of hal-03950393</title>
      </titleStmt>
      <publicationStmt>
        <distributor>CCSD</distributor>
        <availability status="restricted">
          <licence target="https://creativecommons.org/publicdomain/zero/1.0/">CC0 1.0 - Universal</licence>
        </availability>
        <date when="2026-05-17T02:58:03+02:00"/>
      </publicationStmt>
      <sourceDesc>
        <p part="N">HAL API Platform</p>
      </sourceDesc>
    </fileDesc>
  </teiHeader>
  <text>
    <body>
      <listBibl>
        <biblFull>
          <titleStmt>
            <title xml:lang="en">Security Assessment of NTRU Against Non-Profiled SCA</title>
            <author role="aut">
              <persName>
                <forename type="first">Luk</forename>
                <surname>Bettale</surname>
              </persName>
              <email type="md5">182c48302c7eef05db8b0651df0dfbdc</email>
              <email type="domain">oberthur.com</email>
              <idno type="idhal" notation="numeric">935334</idno>
              <idno type="halauthorid" notation="string">684396-935334</idno>
              <affiliation ref="#struct-548720"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Julien</forename>
                <surname>Eynard</surname>
              </persName>
              <email type="md5">3f513aa98b5d402d30951423dda4c149</email>
              <email type="domain">gmail.com</email>
              <idno type="idhal" notation="string">julieneynard</idno>
              <idno type="idhal" notation="numeric">1898</idno>
              <idno type="halauthorid" notation="string">16717-1898</idno>
              <idno type="RESEARCHERID">http://www.researcherid.com/rid/C-7726-2012</idno>
              <idno type="IDREF">https://www.idref.fr/188174451</idno>
              <idno type="ORCID">https://orcid.org/0000-0002-8011-1098</idno>
              <idno type="VIAF">https://viaf.org/viaf/813144647708714384679</idno>
              <idno type="RESEARCHERID">http://www.researcherid.com/rid/http://www.researcherid.com/rid/C-7726-2012</idno>
              <affiliation ref="#struct-325006"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Simon</forename>
                <surname>Montoya</surname>
              </persName>
              <idno type="halauthorid">2099016-0</idno>
              <affiliation ref="#struct-201313"/>
              <affiliation ref="#struct-548720"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Guénaël</forename>
                <surname>Renault</surname>
              </persName>
              <email type="md5">87a535d24f1ee5f451ee4dc8be0a586a</email>
              <email type="domain">gmail.com</email>
              <idno type="idhal" notation="string">guenael-renault</idno>
              <idno type="idhal" notation="numeric">1724</idno>
              <idno type="halauthorid" notation="string">16997-1724</idno>
              <idno type="ORCID">https://orcid.org/0000-0002-7050-9975</idno>
              <idno type="IDREF">https://www.idref.fr/092143393</idno>
              <affiliation ref="#struct-201313"/>
              <affiliation ref="#struct-325006"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Rémi</forename>
                <surname>Strullu</surname>
              </persName>
              <idno type="halauthorid">665413-0</idno>
              <affiliation ref="#struct-325006"/>
            </author>
            <editor role="depositor">
              <persName>
                <forename>Guénaël</forename>
                <surname>Renault</surname>
              </persName>
              <email type="md5">87a535d24f1ee5f451ee4dc8be0a586a</email>
              <email type="domain">gmail.com</email>
            </editor>
          </titleStmt>
          <editionStmt>
            <edition n="v1" type="current">
              <date type="whenSubmitted">2023-01-21 17:56:01</date>
              <date type="whenModified">2026-02-07 05:24:40</date>
              <date type="whenReleased">2023-01-23 08:46:49</date>
              <date type="whenProduced">2022-11-07</date>
              <date type="whenEndEmbargoed">2023-01-21</date>
              <ref type="file" target="https://hal.science/hal-03950393v1/document">
                <date notBefore="2023-01-21"/>
              </ref>
              <ref type="file" subtype="author" n="1" target="https://hal.science/hal-03950393v1/file/scantru_cardis.pdf" id="file-3950393-3451063">
                <date notBefore="2023-01-21"/>
              </ref>
            </edition>
            <respStmt>
              <resp>contributor</resp>
              <name key="179739">
                <persName>
                  <forename>Guénaël</forename>
                  <surname>Renault</surname>
                </persName>
                <email type="md5">87a535d24f1ee5f451ee4dc8be0a586a</email>
                <email type="domain">gmail.com</email>
              </name>
            </respStmt>
          </editionStmt>
          <publicationStmt>
            <distributor>CCSD</distributor>
            <idno type="halId">hal-03950393</idno>
            <idno type="halUri">https://hal.science/hal-03950393</idno>
            <idno type="halBibtex">bettale:hal-03950393</idno>
            <idno type="halRefHtml">&lt;i&gt;CARDIS 2022 - 21st Smart Card Research and Advanced Application Conference&lt;/i&gt;, Nov 2022, Birmingham, United Kingdom. pp.248-268, &lt;a target="_blank" href="https://dx.doi.org/10.1007/978-3-031-25319-5_13"&gt;&amp;#x27E8;10.1007/978-3-031-25319-5_13&amp;#x27E9;&lt;/a&gt;</idno>
            <idno type="halRef">CARDIS 2022 - 21st Smart Card Research and Advanced Application Conference, Nov 2022, Birmingham, United Kingdom. pp.248-268, &amp;#x27E8;10.1007/978-3-031-25319-5_13&amp;#x27E9;</idno>
            <availability status="restricted">
              <licence target="https://about.hal.science/hal-authorisation-v1/">HAL Authorization<ref corresp="#file-3950393-3451063"/></licence>
            </availability>
          </publicationStmt>
          <seriesStmt>
            <idno type="stamp" n="X">École polytechnique</idno>
            <idno type="stamp" n="CNRS">CNRS - Centre national de la recherche scientifique</idno>
            <idno type="stamp" n="INRIA">INRIA - Institut National de Recherche en Informatique et en Automatique</idno>
            <idno type="stamp" n="LIX" corresp="X">Laboratoire d'informatique de l'Ecole polytechnique</idno>
            <idno type="stamp" n="INRIA-SACLAY" corresp="INRIA">INRIA Saclay - Ile de France</idno>
            <idno type="stamp" n="X-DEP-INFO">Département d'informatique de l’École polytechnique</idno>
            <idno type="stamp" n="INRIA_TEST">INRIA - Institut National de Recherche en Informatique et en Automatique</idno>
            <idno type="stamp" n="TESTALAIN1">TESTALAIN1</idno>
            <idno type="stamp" n="GRACE">GRACE</idno>
            <idno type="stamp" n="INRIA2">INRIA 2</idno>
            <idno type="stamp" n="IP_PARIS">Institut Polytechnique de Paris</idno>
            <idno type="stamp" n="GS-COMPUTER-SCIENCE">Graduate School Computer Science</idno>
            <idno type="stamp" n="DEPARTEMENT-DE-MATHEMATIQUES">Collection du Département de Mathématiques</idno>
            <idno type="stamp" n="IP-PARIS-DEPARTEMENT-MATHEMATIQUES">Département de Mathèmatiques</idno>
            <idno type="stamp" n="IP-PARIS-INFORMATIQUE-DONNEES-ET-IA">IP Paris Département d'Informatique, de Données et d'IA</idno>
          </seriesStmt>
          <notesStmt>
            <note type="audience" n="2">International</note>
            <note type="invited" n="0">No</note>
            <note type="popular" n="0">No</note>
            <note type="peer" n="1">Yes</note>
            <note type="proceedings" n="1">Yes</note>
          </notesStmt>
          <sourceDesc>
            <biblStruct>
              <analytic>
                <title xml:lang="en">Security Assessment of NTRU Against Non-Profiled SCA</title>
                <author role="aut">
                  <persName>
                    <forename type="first">Luk</forename>
                    <surname>Bettale</surname>
                  </persName>
                  <email type="md5">182c48302c7eef05db8b0651df0dfbdc</email>
                  <email type="domain">oberthur.com</email>
                  <idno type="idhal" notation="numeric">935334</idno>
                  <idno type="halauthorid" notation="string">684396-935334</idno>
                  <affiliation ref="#struct-548720"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Julien</forename>
                    <surname>Eynard</surname>
                  </persName>
                  <email type="md5">3f513aa98b5d402d30951423dda4c149</email>
                  <email type="domain">gmail.com</email>
                  <idno type="idhal" notation="string">julieneynard</idno>
                  <idno type="idhal" notation="numeric">1898</idno>
                  <idno type="halauthorid" notation="string">16717-1898</idno>
                  <idno type="RESEARCHERID">http://www.researcherid.com/rid/C-7726-2012</idno>
                  <idno type="IDREF">https://www.idref.fr/188174451</idno>
                  <idno type="ORCID">https://orcid.org/0000-0002-8011-1098</idno>
                  <idno type="VIAF">https://viaf.org/viaf/813144647708714384679</idno>
                  <idno type="RESEARCHERID">http://www.researcherid.com/rid/http://www.researcherid.com/rid/C-7726-2012</idno>
                  <affiliation ref="#struct-325006"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Simon</forename>
                    <surname>Montoya</surname>
                  </persName>
                  <idno type="halauthorid">2099016-0</idno>
                  <affiliation ref="#struct-201313"/>
                  <affiliation ref="#struct-548720"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Guénaël</forename>
                    <surname>Renault</surname>
                  </persName>
                  <email type="md5">87a535d24f1ee5f451ee4dc8be0a586a</email>
                  <email type="domain">gmail.com</email>
                  <idno type="idhal" notation="string">guenael-renault</idno>
                  <idno type="idhal" notation="numeric">1724</idno>
                  <idno type="halauthorid" notation="string">16997-1724</idno>
                  <idno type="ORCID">https://orcid.org/0000-0002-7050-9975</idno>
                  <idno type="IDREF">https://www.idref.fr/092143393</idno>
                  <affiliation ref="#struct-201313"/>
                  <affiliation ref="#struct-325006"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Rémi</forename>
                    <surname>Strullu</surname>
                  </persName>
                  <idno type="halauthorid">665413-0</idno>
                  <affiliation ref="#struct-325006"/>
                </author>
              </analytic>
              <monogr>
                <meeting>
                  <title>CARDIS 2022 - 21st Smart Card Research and Advanced Application Conference</title>
                  <date type="start">2022-11-07</date>
                  <date type="end">2022-11-09</date>
                  <settlement>Birmingham</settlement>
                  <country key="GB">United Kingdom</country>
                </meeting>
                <imprint>
                  <publisher>Springer International Publishing</publisher>
                  <pubPlace>Cham</pubPlace>
                  <biblScope unit="serie">Lecture Notes in Computer Science</biblScope>
                  <biblScope unit="volume">13820</biblScope>
                  <biblScope unit="pp">248-268</biblScope>
                  <date type="datePub">2023-01-29</date>
                </imprint>
              </monogr>
              <idno type="doi">10.1007/978-3-031-25319-5_13</idno>
            </biblStruct>
          </sourceDesc>
          <profileDesc>
            <langUsage>
              <language ident="en">English</language>
            </langUsage>
            <textClass>
              <keywords scheme="author">
                <term xml:lang="en">Non-profiled SCA</term>
                <term xml:lang="en">NTRU</term>
                <term xml:lang="en">Post-Quantum Cryptography</term>
              </keywords>
              <classCode scheme="halDomain" n="info.info-cr">Computer Science [cs]/Cryptography and Security [cs.CR]</classCode>
              <classCode scheme="halTypology" n="COMM">Conference papers</classCode>
              <classCode scheme="halOldTypology" n="COMM">Conference papers</classCode>
              <classCode scheme="halTreeTypology" n="COMM">Conference papers</classCode>
            </textClass>
            <abstract xml:lang="en">
              <p>NTRU was first introduced by J. Hoffstein, J. Pipher and J.H Silverman in 1998. Its security, efficiency and compactness properties have been carefully studied for more than two decades. A key encapsulation mechanism (KEM) version was even submitted to the NIST standardization competition and made it to the final round. Even though it has not been chosen to be a new standard, NTRU remains a relevant, practical and trustful post-quantum cryptographic primitive. In this paper, we investigate the side-channel resistance of the NTRU Decrypt procedure. In contrast with previous works about side-channelanalysis on NTRU, we consider a weak attacker model and we focus on an implementation that incorporates some side-channel countermeasures. The attacker is assumed to be unable to mount powerful attacks by using templates or by forging malicious ciphertexts for instance. In this context, we show how a non-profiled side-channel analysis can be done against a core operation of NTRU decryption. Despite the consideredcountermeasures and the weak attacker model, our experiments show that the secret key can be fully retrieved with a few tens of traces.</p>
            </abstract>
          </profileDesc>
        </biblFull>
      </listBibl>
    </body>
    <back>
      <listOrg type="structures">
        <org type="institution" xml:id="struct-548720" status="VALID">
          <orgName>Idemia</orgName>
          <desc>
            <address>
              <addrLine>2 Place Samuel de Champlain 92400 Courbevoie</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.idemia.com/fr</ref>
          </desc>
        </org>
        <org type="institution" xml:id="struct-325006" status="VALID">
          <idno type="IdRef">272840815</idno>
          <orgName>Agence nationale de la sécurité des systèmes d'information</orgName>
          <orgName type="acronym">ANSSI</orgName>
          <desc>
            <address>
              <country key="FR"/>
            </address>
            <ref type="url">https://cyber.gouv.fr/</ref>
          </desc>
        </org>
        <org type="researchteam" xml:id="struct-201313" status="VALID">
          <idno type="RNSR">201221041Y</idno>
          <idno type="ROR">https://ror.org/01vxs7536</idno>
          <orgName>Geometry, arithmetic, algorithms, codes and encryption</orgName>
          <orgName type="acronym">GRACE</orgName>
          <date type="start">2012-01-01</date>
          <date type="end">2026-06-30</date>
          <desc>
            <address>
              <addrLine>Inria Saclay Ile-de-France - Bât. Alan Turing ; LIX - 2e étage ; 1 rue Honoré d'Estienne d'Orves ; Campus de l'École Polytechnique ; 91120 Palaiseau</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://www.inria.fr/equipes/grace</ref>
          </desc>
          <listRelation>
            <relation active="#struct-2071" type="direct"/>
            <relation active="#struct-300340" type="indirect"/>
            <relation active="#struct-563936" type="indirect"/>
            <relation name="UMR7161" active="#struct-441569" type="indirect"/>
            <relation active="#struct-1225635" type="direct"/>
            <relation active="#struct-118511" type="indirect"/>
            <relation active="#struct-300009" type="indirect"/>
          </listRelation>
        </org>
        <org type="laboratory" xml:id="struct-2071" status="VALID">
          <idno type="IdRef">196509955</idno>
          <idno type="ISNI">0000000403673665</idno>
          <idno type="RNSR">200519331V</idno>
          <idno type="ROR">https://ror.org/04afed728</idno>
          <idno type="Wikidata">Q16009025</idno>
          <orgName>Laboratoire d'informatique de l'École polytechnique [Palaiseau]</orgName>
          <orgName type="acronym">LIX</orgName>
          <date type="start">2005-01-01</date>
          <desc>
            <address>
              <addrLine>1 Rue Honoré d’Estienne d’Orves, Bâtiment Alain Turing, 91120 Palaiseau</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.lix.polytechnique.fr/</ref>
          </desc>
          <listRelation>
            <relation active="#struct-300340" type="direct"/>
            <relation active="#struct-563936" type="indirect"/>
            <relation name="UMR7161" active="#struct-441569" type="direct"/>
          </listRelation>
        </org>
        <org type="institution" xml:id="struct-300340" status="VALID">
          <idno type="IdRef">027309320</idno>
          <idno type="ISNI">0000000121581279</idno>
          <idno type="ROR">https://ror.org/05hy3tk52</idno>
          <idno type="Wikidata">Q273626</idno>
          <orgName>École polytechnique</orgName>
          <orgName type="acronym">X</orgName>
          <date type="start">1794-03-11</date>
          <desc>
            <address>
              <addrLine>Route de Saclay, 91128 Palaiseau Cedex</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.polytechnique.edu/</ref>
          </desc>
          <listRelation>
            <relation active="#struct-563936" type="direct"/>
          </listRelation>
        </org>
        <org type="regroupinstitution" xml:id="struct-563936" status="VALID">
          <idno type="IdRef">238327159</idno>
          <idno type="ISNI">0000000502717600</idno>
          <idno type="ROR">https://ror.org/042tfbd02</idno>
          <idno type="Wikidata">Q48759778</idno>
          <orgName>Institut Polytechnique de Paris</orgName>
          <orgName type="acronym">IP Paris</orgName>
          <date type="start">2019-06-02</date>
          <desc>
            <address>
              <addrLine>Route de Saclay, 91120 Palaiseau Cedex, France</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.ip-paris.fr</ref>
          </desc>
        </org>
        <org type="regroupinstitution" xml:id="struct-441569" status="VALID">
          <idno type="IdRef">02636817X</idno>
          <idno type="ISNI">0000000122597504</idno>
          <idno type="ROR">https://ror.org/02feahw73</idno>
          <orgName>Centre National de la Recherche Scientifique</orgName>
          <orgName type="acronym">CNRS</orgName>
          <date type="start">1939-10-19</date>
          <desc>
            <address>
              <country key="FR"/>
            </address>
            <ref type="url">https://www.cnrs.fr/</ref>
          </desc>
        </org>
        <org type="department" xml:id="struct-1225635" status="VALID">
          <idno type="ROR">https://ror.org/026839t73</idno>
          <orgName>Centre Inria de l'Institut Polytechnique de Paris</orgName>
          <date type="start">2022-11-01</date>
          <desc>
            <address>
              <addrLine>1 rue Honoré d'Estienne d'Orves –Bâtiment Alan Turing –Campus de l'École Polytechnique –91120 Palaiseau</addrLine>
              <country key="FR"/>
            </address>
          </desc>
          <listRelation>
            <relation active="#struct-118511" type="direct"/>
            <relation active="#struct-300009" type="indirect"/>
          </listRelation>
        </org>
        <org type="laboratory" xml:id="struct-118511" status="VALID">
          <idno type="RNSR">200818248E</idno>
          <idno type="ROR">https://ror.org/0315e5x55</idno>
          <orgName>Centre Inria de Saclay</orgName>
          <desc>
            <address>
              <addrLine>1 rue Honoré d'Estienne d'OrvesBâtiment Alan TuringCampus de l'École Polytechnique91120 Palaiseau</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://www.inria.fr/centre/saclay</ref>
          </desc>
          <listRelation>
            <relation active="#struct-300009" type="direct"/>
          </listRelation>
        </org>
        <org type="institution" xml:id="struct-300009" status="VALID">
          <idno type="ROR">https://ror.org/02kvxyf05</idno>
          <orgName>Institut National de Recherche en Informatique et en Automatique</orgName>
          <orgName type="acronym">Inria</orgName>
          <desc>
            <address>
              <addrLine>Domaine de VoluceauRocquencourt - BP 10578153 Le Chesnay Cedex</addrLine>
              <country key="FR"/>
            </address>
            <ref type="url">http://www.inria.fr/en/</ref>
          </desc>
        </org>
      </listOrg>
    </back>
  </text>
</TEI>