Abstract
As an important support for quantum communication, quantum key distribution (QKD) networks have achieved a relatively mature level of development, and they face higher requirements for multi-user end-to-end networking capabilities. Thus, QKD networks need an effective management plane to control and coordinate with the QKD resources. As a promising technology, software defined networking (SDN) can separate the control and management of QKD networks from the actual forwarding of the quantum keys. This paper systematically introduces QKD networks enabled by SDN, by elaborating on its overall architecture, related interfaces, and protocols. Then, three-use cases are provided as important paradigms with their corresponding schemes and simulation performances.
Highlights
With rapid developments in Internet of Things technology, more secure communication for users is required with increasing demands in information networks, so as to overcome perceived security threats as much as possible
In 2018, to effectively alleviate the problem routing and secure communication method based on OpenFlow protocol in software-defined networking (SDN), further of in-band noise in the quantum key distribution (QKD) network, Ou et al used machine learning-based approach to estimate demonstrating the feasibility of applying SDN techniques to QKD networks [22]
Control layer provides a holistic view of QKD networks for the operator
Summary
With rapid developments in Internet of Things technology, more secure communication for users is required with increasing demands in information networks, so as to overcome perceived security threats as much as possible. QKD-enabled optical network architecture is proposed important scenario for developing multi-user cases. QKD networking, have designed carefully described the architecture of networks enabled by SDN, including available interfaces multi-resources allocation, secret-key management and survivability guarantee to provide reference andTo protocols in the networks. To explain these with specific details, we have structured the paper as follows.
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