A DLR Dornier Do 228-212 research aircraft was used in the research (Photo: DLR)
Inside the aircraft, a laser system dubbed “Alice” and all associated equipment necessary was mounted atop a 500 × 800 mm (19 x 31 inches) optical bench (Photo: DLR)
The research took place at the German Aerospace Center (Photo: DLR)
Quantum key distribution (QKD) is often considered absolutely secure against eavesdropping (Photo: DLR)
For the first time, quantum cryptographers have successfully transmitted a quantum key from a fast-moving object – a Dornier 228 turboprop. The experiment involved sending a secure message from the aircraft to a ground station via laser beam, and can be considered a significant step toward the creation of a network of “unbreakable” satellite data transmissions.
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