Abstract
We present a demonstration of software defined networking (SDN) services utilizing quantum key distribution (QKD) technology, fully integrated with standard telecommunication network connecting production facilities of Telefonica in Madrid. All communications “co-propagate” over the same fiber infrastructure.
Highlights
Quantum key distribution (QKD) [1,2] is a method for distant key generation employing quantum principles
We present a demonstration of software defined networking (SDN) services utilizing quantum key distribution (QKD) technology, fully integrated with standard telecommunication network connecting production facilities of Telefonica in Madrid
QKD devices need to exhibit a certain degree of flexibility in order to allow for such an integration
Summary
Quantum key distribution (QKD) [1,2] is a method for distant key generation employing quantum principles The latter allow the unprecedented security of the generated key material. Its security is independent of the computational power of the attacker and can in principle reach the level of Information Theoretic Security (ITS) [2] It is, theoretically impossible that due to exponential decay with distance, QKD cannot generate a reasonable amount of key material if channel losses exceed 25 to 30 dB (something like 120 to 150 km with state-of-the-art optical fibers and non-forbiddingly demanding technology). Proofs of concept for these quantum repeaters performed, these devices are still far away in the future For this reason, since a long time, there
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