Summary
- Profile Type
- Research & Development Request
- POD Reference
- RDRES20250714009
- Term of Validity
- 14 July 2025 - 14 July 2026
- Company's Country
- Spain
- Type of partnership
- Research and development cooperation agreement
- Targeted Countries
- All countries
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General information
- Short Summary
- A European cryptography research centre is submitting an R&D request to call HORIZON-CL3-2025-02-CS-ECCC-06. The project will raise a P2P messaging protocol with one-time symmetric keys (D2OTP) from TRL-5 to TRL-7, embedding post-quantum security into high-level communication systems. The centre acts as coordinator; additional research bodies, public end-users and IT integrators are sought before 30 Sep 2025.
- Full Description
-
The project. Current communications rely on public-key cryptography vulnerable to future quantum computers. D2OTP removes that dependency by using one-time symmetric keys derived from a pre-shared secret together with post-quantum algorithms, ensuring confidentiality, integrity, mutual authentication and non-repudiation without a PKI infrastructure. The R&D action will harden the protocol, port it to representative P2P and e-mail platforms and validate it in two pilots (civil-society and public-administration), raising TRL from 5 to 7.
The programme. Horizon Europe – Cluster 3 “Civil Security for Society”, single-stage Research and Innovation Action. Topic HORIZON-CL3-2025-02-CS-ECCC-06: Integration of PQC algorithms into high-level protocols. Indicative funding per project: € 2–3 million.
The consortium. Confirmed: research centre (Madrid) for design, implementation and management. Needed:
• Research organisation with expertise in symmetric-key cryptanalysis and formal verification;
• Public authority or critical-infrastructure operator to host pilots and provide operational requirements;
• IT integrator to adapt D2OTP to legacy platforms and lead exploitation.
Timeline. Call deadline: 25 Nov 2025, 17:00 CET. Expression-of-interest deadline: 30 Sep 2025. Planned duration: 36 months (156 weeks). - Advantages and Innovations
-
• No public-key layer → immune to Shor-type attacks.
• Every message encrypted with a never-reused key → information-theoretic confidentiality.
• Instant start-up, no certificate handshake → lower latency.
• Pure-software solution; no QKD hardware, reducing cost and complexity.
• Crypto-agnostic core allows easy swap-in of NIST-standardised PQC primitives.
• Independent of the underlying infrastructure linking the communicating applications.
• Deployable as an overlay on the existing operational protocol, with no replacement required, strengthening the security already in place. - Technical Specification or Expertise Sought
- Symmetric-protocol cryptanalysis, formal verification, large-scale secure-messaging deployments, standardisation (IETF/ETSI) and integration of security modules into governmental IT systems.
- Stage of Development
- Under development
- Sustainable Development Goals
- Goal 9: Industry, Innovation and Infrastructure
- Goal 16: Peace and Justice Strong Institutions
- IPR status
- IPR granted
- IPR notes
- Patent granted in Spain; advanced prosecution in Europe, USA and Mexico
Partner Sought
- Expected Role of a Partner
-
• Research partner – lead independent cryptanalysis, formal proofs and standardisation drafts.
• Public authority / critical-infrastructure operator – host pilots, define operational constraints, validate usability and compliance (GDPR, NIS2, ENS).
• IT integrator – port D2OTP to e-mail, messaging or telephony; manage scalability tests and exploitation roadmap.
All partners will co-author deliverables under a research cooperation agreement. - Type and Size of Partner
- SME 11-49
- R&D Institution
- Other
- SME 50 - 249
- University
- Big company
- Type of partnership
- Research and development cooperation agreement
Call details
- Framework program
- Horizon Europe
- Call title and identifier
-
HORIZON-CL3-2025-02-CS-ECCC-06
- Submission and evaluation scheme
-
Single-stage RIA
- Anticipated project budget
-
3000000
- Coordinator required
-
No
- Deadline for EoI
- Deadline of the call
- Project duration in weeks
-
156
- Web link to the call
- https://ec.europa.eu/info/funding-tenders/opportunities/portal/screen/opportunities/topic-details/horizon-cl3-2025-02-cs-eccc-06
- Project title and acronym
-
Quantum-Resilient P2P Messaging via Dynamic One-Time Keys (QR-P2P)
- Horizon Europe
Dissemination
- Technology keywords
- 01003006 - Computer Software
- 01004010 - Quality Management System
- 01003014 - Internet Technologies/Communication (Wireless, Bluetooth)
- Market keywords
- 02007023 - Web semantics
- 01004002 - Data communication components
- Sector Groups Involved
- Aerospace and Defence
- Mobility - Transport - Automotive
- Digital
- Targeted countries
- All countries