Quantum Key Distribution – What is done and what is to come
summary
Bundesdruckerei’s Qu-Gov testbed wires QKD devices into a Berlin star network through a telecom hub and shows basic operation but clear limits: dark fiber only between endpoints, effective range typically up to ~100 km, and measured key rates around 400–7k bits/sec. Integration is handcrafted and requires classical channels for post‑processing and PQC authentication; forward secrecy holds for delivered keys but full security proofs and untrusted quantum repeaters remain unresolved, and satellites face line‑of‑sight and weather constraints.
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chapters (8)
- 0:00Welcome
- 1:46Quantum cryptography disruption
- 3:14How QKD works
- 6:52QKD systems integration
- 9:02Berlin QKD testbed
- 11:35Hybrid security challenges
- 14:33Quantum networks next steps
- 15:15Q&A
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