The invention concerns a system and method for generating a symmetric cryptographic key and random numbers designed to secure communication in public infrastructure.
The solution is based on device-independent cryptography and optimized entangled states, enabling certified randomness generation and quantum-resistant symmetric keys.
The system increases the operational range of secure key distribution while reducing hardware requirements for end users, maintaining high security even with low detection efficiency.
Application:
- Secure communication in public infrastructure,
- Telecommunication systems requiring quantum-resistant security,
- Generation of certified keys and random numbers.
