Redefining the Origin of Secrecy in a Post-Quantum World

The post-quantum era demands innovative approaches to key generation that can withstand the capabilities of quantum adversaries, making secure and scalable symmetric key creation more essential than ever. Key agreement and distribution methods, old and new, achieve secrecy by constructing relative distinguishability and indistinguishability through high complexity mathematical constructions or quantum phenomena. This talk explores and compares a range of these approaches against a quantum threat model —from mathematical problem-based techniques to quantum-based solutions—and introduces an alternative strategy: leveraging the properties of finite randomness. This unique, quantum-safe method reimagines the origin of secrecy by utilizing a straightforward resource as a foundation for mutual secrecy. In doing so, it offers a resilient and efficient path forward, effectively addressing the challenges posed by an impending quantum threat.

By:
Frey Wilson | Co-Founder and Chief Technology Officer, Cavero Quantum

Full Abstract and Presentation Materials:
https://www.blackhat.com/eu-24/briefings/schedule/#redefining-the-origin-of-secrecy-in-a-post-quantum-world-43837Black HatRead More