6G • Security
QKD
Quantum Key Distribution
A quantum physical security technology using single photons to exchange provably unhackable cryptographic keys between core data centers.
Technical Explanation
While Post-Quantum Cryptography relies on hard math, Quantum Key Distribution (QKD) relies on the fundamental laws of quantum physics (Heisenberg's uncertainty principle and the quantum no-cloning theorem). By transmitting single photons over dedicated optical fiber or free-space laser links between 6G core data centers, any attempt by an eavesdropper to measure or intercept the quantum keys physically alters the photons' quantum state, instantly exposing the intrusion.
Key Functions
- Information-theoretically secure key distribution governed by quantum mechanics laws
- Physical eavesdropping detection: measuring photons introduces detectable quantum errors
- Ultra-secure optical fiber backhaul linking government, military, and financial core data centers
- Continuous generation of one-time-pad symmetric keys refreshed every few seconds
- Standardized integration with ETSI ISG QKD network management interfaces
Specifications
ETSI GS QKD 004 / GS QKD 014, ITU-T Y.3800-series, 3GPP Rel-19 Study on QKD
Interfaces
QKD-Key-StreamQuantum-Channel-IF
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