Attack Detection Method for Continuous Variable Quantum Key Distribution System

Abstract

The invention discloses an attack detection method for a continuous variable quantum key distribution system, including building a continuous variable quantum key distribution experimental system; performing quantum communication in an unattacked state and an attacked state, obtaining communication parameters and processing them to obtain Training data set; use the training data set to train the attack detection preliminary classifier to obtain the attack detection classifier; use the attack detection classifier to detect the communication process and realize the attack detection of the continuous variable quantum key distribution system. The present invention obtains an attack classifier from it by establishing a GAN network, and uses the attack classifier as a means of attack detection to detect the process of continuous variable quantum key distribution; the method of the present invention can not only accurately detect and identify the quantum key distribution process The type of attack received in the network, and it has high reliability, good real-time performance and less resource consumption.

Description

technical field [0001] The invention belongs to the field of quantum communication, and in particular relates to an attack detection method of a continuous variable quantum key distribution system. Background technique [0002] With the development of economy and technology and the improvement of people's living standards, data security has become more and more concerned. Therefore, data security transmission has become the focus of research. [0003] Quantum key distribution is one of the most mature technologies in quantum communication. It can provide information-theoretic security keys between communicating parties. The continuous variable quantum key distribution system (CVQKD) is an important implementation method in quantum key distribution. This protocol has absolute security in the coherent state of Gaussian modulation, and general collective attacks and continuous attacks cannot affect the security of the system. [0004] But in the actual Gaussian modulation c...

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Problems solved by technology

However, in the existing methods, the estimation of these two types of interference can only be carried out after the key transmission process is completed, and there are problems such as long time consumption, large resource consumption, and poor real-time performance in the application.

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