QNu Labs, BISAG-N and IIT Gandhinagar Demonstrate 5 km-Scale Free-Space QKD Link
THE SO WHAT
A 5.56 km free-space QKD link moves quantum-secure networking from lab demo toward practical metro-scale use. Critical infrastructure operators should start mapping where long-lived secrets (10–20 years) justify piloting quantum-safe links rather than just software crypto upgrades.
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