Remote key distributing system based on quantum communication network and application method of remote key distributing system

Abstract

The invention discloses a remote key distributing system based on a quantum communication network and an application method of the remote key distributing system. The remote key distributing system based on the quantum communication network comprises a remote key distributing device, a key using device, a key storing device, a key distributing center and a quantum key distributing server, wherein the remote key distributing device can be directly connected with the key distributing center to receive a distributed session key, or the remote key distributing device and the key distributing center distribute the session key through the quantum communication network. According to such a key distributing manner, not only safety of the distributed session key in the transmission process is ensured, but also labor force and time for distributing the key at a remote distance are saved. According to the invention, the distributed session key can be either a true random number key generated by a quantum random number generator or a quantum communication key shared in different areas and generated between two arbitrary quantum key distributing service stations in the quantum communication network through a key distribution protocol.

Description

technical field [0001] The invention relates to the field of quantum communication equipment, and in particular provides a remote key issuing system based on a quantum communication network and a method for using the same. Background technique [0002] With the advancement of the practical application of quantum communication, the application prospect of quantum communication in network applications is more broad. The quantum communication network uses the quantum key generated by the BB84 protocol to encrypt the data transmitted in the network, which can ensure the security of information transmitted on the Internet. High security, the development direction of encrypted communication in the future is quantum communication whose security is guaranteed by quantum mechanics. Therefore, ensuring that quantum keys can be safely issued to users and that users can safely use quantum keys to encrypt transmitted data is a key step in the construction of quantum communication network...

AI Technical Summary

Problems solved by technology

[0007] 3) In the prior art, the issued session key directly enters the key usage device for encrypted storage and use, so that the session key always exists in the computer in the form of plain text at one time, which makes the security of the session key greatly reduced sex

[0008] 4) The existing encryption card adopts a two-level key system. The encryption key of the key is stored in the encryption card in the form of plain text, and is backed up outside the encryption card in the form of plain text, facing a certain risk of cracking

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