Quantum-Safe Hybrid Cryptography: How Qeli Bridges Today's Security with Tomorrow's Threats

This deep dive reveals how a working VPN implements quantum resistance without betting everything on unproven algorithms—a practical approach gaining importance as quantum computing nears viability. By combining classical X25519 with the new ML-KEM-768 standard, Qeli demonstrates that hybrid cryptography is not theoretical but deployable today. The implementation journey also highlights real-world challenges that developers should consider when adding post-quantum security to production systems.