Abstract: A system and method for generating cryptographic keys to secure wide-area network (WAN) traffic utilizing real-time, high-entropy data derived from a distributed physical layer. The system utilizes a hybrid multi-point architecture comprising: (1) a plurality of Mobile Nodes configured to harvest stochastic multi-sphere telemetry data (e.g., environmental, biological, galactic, and technological noise); (2) a plurality of Anchor Nodes configured to harvest stochastic data, validate Mobile Node location proofs via Time-Difference-of-Arrival (TDoA) analysis, and stabilize network topology; and (3) a Universal Entropy Engine configured to generate a global security hash (GSH). This GSH enables the derivation of ephemeral encryption keys for native decentralized networks and third-party overlays (e.g., SD-WAN, IoT). By coupling security to the vast, non-deterministic multi-sphere, the system defends against quantum and algorithmic threats.