Securing Plex on Synology NAS with Post-Quantum Cryptography via Cloudflare Tunnel

Introduction Securing remote access to a Plex media server hosted on a Synology NAS device presents a critical challenge, particularly in the face of advancing quantum computing capabilities. Traditional encryption algorithms, such as RSA and Elliptic Curve Cryptography (ECC), rely on the computational infeasibility of tasks like integer factorization and discrete logarithm problems. Quantum computers, leveraging Shor’s algorithm, can solve these problems exponentially faster, rendering traditional encryption obsolete. This vulnerability is not a speculative future concern but an imminent threat, especially for internet-exposed services like Plex. Without post-quantum cryptography (PQC), Plex servers—and the sensitive data stored on Synology NAS devices—are susceptible to quantum-enabled decryption attacks, compromising both media libraries and confidential information. Plex’s current lack of native PQC support creates a significant security gap, particularly for users relying on remot