QuNET Key-Experiment #2: A metropolitan QKD network for quantum-secure communication of personal data between government
In the QuNET project, a QKD multi-user network with 6 locations and 7 connections was created in Berlin. Together with partners, the secure transmission of sensitive data in a public authority environment was demonstrated - a milestone for quantum-based IT security
In the scope of the German QuNET initiative, a multi-user QKD (Quantum Key Distribution)
network was set up in the Berlin metropolitan region. Together with partners from the
Bundesdruckerei and Deutsche Telekom, a novel use-case for QKD-secured transmission of
personal data in a government-related context was demonstrated. The heterogeneous QKD
network, based on so-called Trusted Nodes, integrates various QKD technologies and connects
six locations via seven QKD links over fiber and free-space channels of different distances.
Among other things, the realized solutions enable flexible optical rerouting of QKD quantum
channels for future dynamic networks as well as monitoring of individual node locations using
SDN agents. In this presentation, we provide an overview of the recent developments,
implemented architecture and employed technologies, and present the latest experimental
results.
Speakers (1)

Dr. Nino Walenta
Group Leader, Fraunhofer HHI