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                           <cbc:Name>Audrey Ferreol</cbc:Name>
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            <efac:Publication><efbc:NoticePublicationID schemeName="ojs-notice-id">00089573-2026</efbc:NoticePublicationID><efbc:GazetteID schemeName="ojs-id">27/2026</efbc:GazetteID><efbc:PublicationDate>2026-02-09+01:00</efbc:PublicationDate></efac:Publication></efext:EformsExtension>
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      <cbc:Description languageID="ENG">The objective of this activity is to derive two sets of specifications for prepare-and-measure QKD transceivers (quantum, classic, user, monitoring and control interfaces), one for
satellite and one for terrestrial application, that will be presented for standardization in a European standardization body as part of the activity.
The activity will include an in-depth analysis of the performance and of the security of the two proposed QKD solutions, with a specific focus on the security of the quantum channel.
To this purpose, the two sets of specification will consider all known vulnerabilities of QKD systems and provide a dedicated countermeasure for each of them. The strategy to
implement these countermeasures will include a complete security proof, quantifying the maximum information leakage considering HW imperfections as defined by the specifications,
a set of software and hardware hacking mitigation strategies, in line with the security proof, and a calibration and monitoring procedure to guarantee the correspondence of these
values in the actual implementation. The level of detail of the specification will allow the design of the system in a following phase, not covered under this activity. The final goal of the
activity is the realization of a QKD system that can withstand all known quantum attack and that also cover potential known vulnerability. This setup will be used as a testbed for
performing hacking attempt and potentially discover new vulnerability of QKD systems. To allow for a wide scrutiny of the proposed protocol and the validity of the hacking
countermeasures proposed, part of the work will need to be made public.</cbc:Description>
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         <cbc:Description languageID="ENG">The Invitation to Tender (ITT) will be published on ESA Star. In order to
access to the ITT Package, Tenderers must be registered in esa-star as potential ESA suppliers.
Any Tenderer, which is not yet registered with ESA as a potential supplier, must complete the
online questionnaire in esa-star, https://esastar-emr.sso.esa.int/. Further information on the
registration process can be found in ESA’s INDUSTRY PORTAL available at: - http://www.esa.
int/About_Us/Business_with_ESA/esa-star_open_for_business - http://www.esa.int/About_Us
/Business_with_ESA/How_to_do/esa-star_Registration_Process Please note that esa-star
allows two levels of entity registration: “Light” and “Full”. This allows new users wishing to do
business with ESA to carry out their registration in two steps. While “Light” registration will
grant access to all esa-star services up to and including proposal submission, the award of
ESA contracts requires “Full” registration.</cbc:Description>
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               <cbc:Description languageID="ENG">The dates given in this Notice are estimated dates, actual dates are the ones that are published on the tendering tool of the European Space Agency</cbc:Description>
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