Visual Design And Implementation Of Quantum Key Distribution System Based On BB84 Protocol

Since the BB84 protocol has been proposed,the development of quantum communication technology has been a concern.On the one hand,since quantum communication has been shown to be unconditionally secure.On the other hand,in recent years,with the emergence of smart phones,the increase in the amount of sensitive data,people are increasingly concerned about the security of communications.The unconditional security of quantum communication is based on the basic characteristics of quantum physics,which is different from the classical encryption method based on computational complexity.Over the past decade,the field of quantum key distribution has made great progress.In 2000,it was pointed out that the weak coherent pulse quantum key experiment was not absolutely safe.In 2005,the decoyed quantum cryptography was proposed,and then the secure quantum key distribution scheme based on the weak coherence light source was proposed.However,the quantum key distribution The limitation of the system in terms of protocol principle,networking mode,device performance and real security has limited its application range.This paper first introduces the basic concepts,background knowledge and research history and progress of quantum communication,emphasizes the importance of data visualization.Then it introduces the theoretical basis of quantum key distribution,including Uncertainty Principle,No-Cloning Theorem;then introduced the work principle of BB84,unconditional security and quantum key distribution system in the key technology.In the third chapter,based on the analysis of the characteristics of quantum channels and the basic principles of quantum mechanics,a scheme of improving the function of existing systems is proposed.The main idea is to let the system have the function of sending a semantic value.The program does not need to change the physical structure of the current system,but at the software level of an improvement.The program does not affect the original functionality and security of the system.Then the design of quantum visualization system is introduced in detail.The quantum visualization system has the following characteristics:1)visual interactive way to graphics rather than data to show the data,user-friendly system debugging.2)full-featured,not only support real-time data visualization,but also historical data.3)According to the user's algorithm the existence of eavesdropping on the quantum channel can be automatically detected.Finally,the realization of quantum visualization system is introduced.The main contents of this paper are as follows:According to the flow of data flow to determine the relevant data structure of the idea,visualization panel algorithm and data structure.