Research On Plug-play MDI-QKD And Its Application In Cloud Computing Network Security

Quantum secure communication is a new technology which is generated by the intersection of the classical communication theory and the basic principles of quantum mechanics.After more than 30 years of research,quantum secure communication technology has advanced from laboratory to large-scale practical application,and quantum secret communication based on quantum key distribution(QKD)is one of the first forms to be applied.Cloud computing based on the Internet makes it easy for ordinary users to enjoy high-quality computing resources without significantly increasing their own computing costs,so its application is booming.However,there are serious security defects in cloud computing networks,which bring serious security threats to user data.In order to ensure the security of data in cloud computing networks,the introduction of secure communication is a feasible scheme.In this paper,a plug-play measurement device-independent quantum key distribution technology(MDI-QKD)is studied.Combined with software-defined network(SDN)technology,it is applied to cloud computing networks to ensure the security of cloud computing network data and the flexible configuration of corresponding network equipment.The main contents and research results are as follows:This paper first briefly introduces the basic concept of cloud computing,the three-layer architecture of cloud computing network,and the research progress of cloud computing security,and introduces the research progress of three typical quantum secure communication experimental networks and QKD protocol.Secondly,some physical theorems of quantum information are given,including Heisenberg's uncertainty principle,the non-clonable theorem of unknown quantum state,and the relevant basis of QKD protocol and SDN are introduced,in which BB84 protocol and MDI-QKD protocol in typical QKD protocol and the important OpenFlow protocol in SDN are emphatically introducedThird,Based on cloud computing nerwork and SDN architecture,design based on the safety of SDN and QKD cloud computing network hierarchical model,the type of QKD choose plug and play type of MDI-QKD,design based on the safety of SDN and QKD cloud computing network node model,including the content of the four nodes module and function,and finally made the results of simulation analysis,based on SDN is verified,and the feasibility of QKD security cloud computing network.Fourth,Security cloud computing network model is put forward in the plug and play type of MDI-QKD system architecture,its working process is given,and designed the synchronization of these units,including the synchronization scheme design,the generation of synchronous pulse adjusting,synchronous pulse trigger,synchronous pulse delay of the detector and acquisition card,and gives the analysis of experimental results,verifies the feasibility of this synchronization scheme.Finally,this paper summarizes the whole paper and puts forward some Suggestions for the future research work.