Method for testing key devices in quantum key distribution system

Abstract

The invention belongs to the quantum secret communication technical field and provides a method for testing key devices in a quantum key distribution system. The method comprises the following steps of step 1, determining the key devices in the quantum key distribution system which needs to be tested and key test parameters of every key device; step 2, selecting main change parameters of the key test parameters and enabling other parameters to serve as from change parameters; step 3, setting a value of every main change parameter through a man-machine control interface and testing the from change parameters; step 4, writing test data into a database; step 5, performing analysis on the test data in the database and display an analysis result; step 6, judging the analysis result and returning to the step 3 to continue to test if necessary; step 7, performing statistical analysis on the test data in the database and obtaining a test conclusion. According to the method for testing the key devices in the quantum key distribution system, the key test parameters are controlled based on the result of the analysis on the test data and accordingly the blindness in a test is eliminated to a certain extent, the test efficiency is improved, and the test cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of quantum security communication, and in particular relates to a method for testing key components in a quantum key distribution system. Background technique [0002] Quantum communication is a new interdisciplinary subject developed in the past two decades, and a new research field combining quantum theory and information theory. Recently, this subject has gradually moved from theory to experiment, and to practical development. Efficient and safe information transmission has attracted more and more attention. [0003] Physically, quantum communication can be understood as high-performance communication realized by using quantum effects under the physical limit. In informatics, we believe that quantum communication is the use of the basic principles of quantum mechanics (such as the principle of non-cloning of quantum states and the measurement collapse properties of quantum states, etc.) or the use of qua...

AI Technical Summary

Problems solved by technology

[0009] First, due to ignoring the influence of the correlation between various key components in the system on the system operation results, the test process lacks systematicness, and the test results lack systematic analysis, so that the obtained test conclusions are often one-sided

[0010] The second is to greatly increase the number of repeated tests, wasting time and greatly increasing the cost of testing

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