Post-Quantum Cryptographic Container for Secure and Verifiable Long-Term Protection of Critical Digital Assets

Quantum Computing Solutions (QCS) offers a post-quantum cryptographic container designed for long-term protection, secure transmission and autonomous verification of critical digital assets in high-security environments.

The solution integrates hybrid post-quantum encryption (Kyber-based key encapsulation) and quantum-resistant digital signatures (Dilithium) within a deterministic, self-contained architecture. Each protected file becomes a sovereign cryptographic object that can be verified offline without dependency on external PKI infrastructures, certificate authorities or online validation services.

The container is specifically engineered for environments where long-term confidentiality, integrity and traceability are mission-critical, including:

• Defence and military documentation
• Secure archival of classified material
• Critical infrastructure and energy systems
• Aerospace and industrial intellectual property
• Justice, evidence preservation and chain of custody
• Strategic governmental communications

The architecture follows an encrypt-then-sign paradigm, ensuring resistance against malleability attacks and preserving semantic integrity. Its modular design allows integration with HSMs, TPMs and secure enclaves, enabling deployment in institutional and defence-grade infrastructures.

The solution supports multi-recipient encryption, embedded policy metadata and extensibility for timestamps, audit logs and delegated certifications, making it suitable for dual-use applications requiring resilience against both classical and quantum adversaries.

QCS is open to collaboration for integration, pilot deployment, interoperability validation and inclusion within larger European defence and dual-use R&D consortia.