Integration of Post-Quantum Cryptography (PQC) algorithms into high-level protocols

Opened

Programme Category

EU Competitive Programmes

Programme Name

Horizon Europe (2021-2027)

Programme Description

Horizon Europe is the European Union (EU) funding programme for the period 2021 – 2027, which targets the sectors of research and innovation. The programme’s budget is around € 95.5 billion, of which € 5.4 billion is from NextGenerationEU to stimulate recovery and strengthen the EU’s resilience in the future, and € 4.5 billion is additional aid.

Programme Details

Identifier Code

HORIZON-CL3-2025-02-CS-ECCC-06

Call

Integration of Post-Quantum Cryptography (PQC) algorithms into high-level protocols

Summary

The transition to post-quantum cryptography requires changing the uses of most currently deployed public-key cryptography (RSA and ECC). Research and development efforts are providing signature systems and key-exchange mechanisms that are generally accepted to withstand attacks using classical and quantum computers. Efforts are on the way to include these in core Internet protocols such as Transport Layer Security (TLS). While this is an important development, many more protocols need to be modified to be quantum-ready and to ensure backward compatibility with legacy systems.

Detailed Call Description

Various application areas, such as Internet of Things, cloud-based applications, and automotive, place constraints on bandwidth or processing time which may prompt different choices than those employed for TLS. Currently used high-level protocols may have components that are specific to Elliptic Curve Cryptography (ECC) or to Rivest-Shamir-Adleman (RSA) or may require additional building blocks next to or in place of signatures and key-exchange mechanisms. While applications that provide authenticity are less urgent to migrate than those for confidentiality, those using embedded hardware such as secure elements, Two-Factor Authentication (2FA) and Multi-Factor Authentication (MFA) using hardware tokens and others have a very slow turnover and need to be replaced by the time large quantum computers exist, thus requiring migrating the design in the near future.

Activities should target one or multiple relevant high-level protocols and produce their post-quantum versions. Typically, this can be achieved through combining current and post-quantum solutions for backward compatibility. Atypical solutions with equivalent security are also welcome. Consortia composed by actors of different nature, such as, for example, research institutions, relevant public entities, and industry to ensure that PQC solutions meet real-world security demands and are robustly tested across various applications are also welcome.

Call Total Budget

€6.00 million

Financing percentage by EU or other bodies / Level of Subsidy or Loan

100%

Expected EU contribution per project: between €2.00 and €3.00 million.

Thematic Categories

  • Information and Communication Technologies
  • Information Technology
  • Research, Technological Development and Innovation

Eligibility for Participation

  • Businesses
  • Educational Institutions
  • Large Enterprises
  • Legal Entities
  • NGOs
  • Other Beneficiaries
  • Private Bodies
  • Researchers/Research Centers/Institutions
  • Semi-governmental organisations
  • Services Providers
  • Small and Medium Enterprises (SMEs)
  • State-owned Enterprises

Eligibility For Participation Notes

A number of non-EU/non-Associated Countries that are not automatically eligible for funding have made specific provisions for making funding available for their participants in Horizon Europe projects.

In order to achieve the expected outcomes, and safeguard the Union’s strategic assets, interests, autonomy, and security, participation in this topic is limited to legal entities established in Member States and Associated Countries and OECD countries.

In order to guarantee the protection of the strategic interests of the Union and its Member States, entities established in an eligible country listed above, but which are directly or indirectly controlled by a non-eligible country or by a non-eligible country entity, shall not participate in the action.

Call Opening Date

12/06/2025

Call Closing Date

12/11/2025

National Contact Point(s)

National Cybersecurity Coordination Centre Cyprus (NCC-CY)

1 Andrea Chaliou, 1075 Engomi, Nicosia,
Telephone: 1447
Fax: +357 22693070
Email: info@ncc.cy
Websitehttps://ncc.cy/en/

EU Contact Point

ECCC Applicants Direct Contact Centreapplicants@eccc.europa.eu