Quantum cryptography network encryption communication method based on quantum key card

Abstract

The invention provides a quantum cryptography network encryption communication method based on a quantum key card. The method comprises the following steps: establishing an equipment network access authentication server in a quantum cryptography network; the quantum key card registers in the network access authentication server to obtain an authentication key; the quantum key card performs network access authentication, the network access authentication server determines whether the quantum key card is registered or not based on the authentication key of the quantum key card sending the network access authentication request and the basic information, and if the quantum key card is registered, the network access authentication is passed, and a network access authentication key is updated for the quantum key card; the quantum key card obtains true random data as a shared key for encryption communication; according to the encryption communication method and device, the network resource consumption of the quantum key cards for obtaining the shared key for encryption communication is reduced, and the identity authentication process when the quantum key cards obtain the shared key for encryption communication is simplified.

Description

technical field [0001] The present disclosure belongs to the technical field of encrypted communication networks, and relates to a quantum cryptographic network encrypted communication method based on a quantum key card. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Quantum communication is a new interdisciplinary subject developed in the past two decades, and it is a new research field combining quantum theory and information theory. Recently, this discipline has gradually moved from theory to experiment and to practical development. Efficient and secure information transmission has attracted more and more people's attention. [0004] In physics, quantum communication can be understood as high-performance communication using quantum effects under the physical limit. In informatics, we think that quantum communication is the use of t...

AI Technical Summary

Problems solved by technology

The method of generating the quantum key card encryption and decryption shared key in this patent is not simple enough, which wastes the network resources of the quantum cryptography network, and needs to set up different levels of switching centers according to the different network ranges where the quantum network service station is located.

Another shortcoming of this patent scheme is that the authentication process is relatively complicated when the encrypted communication between the quantum key cards is complicated, between the quantum key card and the quantum network service station that has a shared key with it and between the quantum key cards authentication is required

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