Beyond Quantum Mechanics: Building Cryptographic Security on Causality

As quantum mechanics may eventually be superseded by a more fundamental theory of nature, quantum cryptographers are exploring quantum jamming to test whether their security protocols remain robust against unknown future physics. By grounding cryptography in deeper principles like causality rather than quantum mechanics alone, researchers aim to ensure communications stay secure even if our understanding of nature fundamentally shifts. This represents a paradigm shift in cryptographic thinking—moving from theory-dependent to principle-dependent security.