In 2011 a successful experiment by the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) in cooperation with the Ludwig-Maximilians-Universität (LMU) in Munich has opened up new possibilities in cryptography. For the first time, researchers have managed to transmit a quantum key from a fast-moving object. The quantum data was sent from an aircraft to a ground station via a laser beam.