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Jan 2, 2026 · Information Security

How QKD Networks Secure Communications: A One‑Page Technical Overview

This article explains the quantum key distribution (QKD) technology that underpins Chinese quantum communication products, detailing the point‑to‑point encryption flow, the four‑layer QKD network architecture defined in YD/T 4301‑2023, and practical ALICE‑BOB scenarios that illustrate how quantum physics guarantees eavesdrop‑proof security.