Communication system for realizing information encryption/decryption transmission based on quantum network and communication method

A communication system and network implementation technology, applied in the field of secure communication systems, can solve problems such as poor reliability of system operation, increased cost of QKD supporting equipment, and complicated workflow

Active Publication Date: 2017-02-22
ZHEJIANG SHENZHOU QUANTUM NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that every time the user makes a communication task request between different places and encrypts and decrypts the transmitted information, the required key needs to be generated and distributed by the quantum key distribution center device
[0007] 1. The process of generating and distributing quantum keys is relatively redundant, and the utilization efficiency of keys is low
[0008] 2. The currently proposed quantum key distribution system needs to increase the cost of more QKD supporting equipment in order to enable users to obtain more keys, which leads to poor reliability of the system operation, relatively complicated workflow, and large resource consumption. Better reasonable deployment and use

Method used

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  • Communication system for realizing information encryption/decryption transmission based on quantum network and communication method
  • Communication system for realizing information encryption/decryption transmission based on quantum network and communication method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Embodiment 1, information communication between two clients in a wide area network

[0084] First, client A uses the quantum key card held for identity authentication.

[0085] Client A (equivalent to the sender) and client B (equivalent to the receiver) are configured in different quantum network service stations, and client A sends an identity authentication request to the quantum network service station where it is located.

[0086] The quantum key card matched by client A sends the address information of the quantum service station stored by itself to the quantum service station currently communicating for identity authentication. If the identity is confirmed to be legal, the information is transmitted. If the operation is terminated, the client A initiates The remote communication task with client B failed.

[0087] Second, the client A encrypts the information.

[0088] The quantum key card matched by client A can use the key seed to perform the key generation a...

Embodiment 2

[0100] Example 2: Communication between two clients belonging to one quantum network service station in the local area network

[0101] When both client A and client B belong to the same quantum network service station, there is no need to generate a new inter-station quantum key by means of a quantum key distribution device, and only the user-side key stored in the quantum network service station needs to be used. Encrypt and decrypt the transmitted ciphertext information.

[0102] User A and User B respectively use their matching quantum key cards to complete the identity authentication with the quantum network service station.

[0103] The quantum key card matched by the user terminal A uses the stored key seed to generate a first key and encrypts the information to form a first ciphertext, and the first ciphertext is transmitted to the quantum network service station via the sender;

[0104] The quantum network service station uses the user-side key in the station to gene...

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Abstract

The invention discloses a communication system for realizing information encryption/decryption transmission based on a quantum network and a communication method. The communication system comprises quantum network service stations configured at a network side and clients configured at a user side. The system is also equipped with a quantum key card. True random numbers are generated at the network side. The true random numbers are respectively stored in the quantum key cards and the network side to form corresponding user side keys. The user side keys of the quantum key card and the network side are respectively used for encrypting and decrypting information when the clients communicate with the corresponding quantum network service stations. According to the system and the method, a quantum key seed is operated through utilization of the quantum key card, a large number of keys are generated in a short time, and the keys directly participate in the encryption and decryption processes of the information. The utilization efficiency of the keys is improved, the working process of the communication system is optimized, and the system and the method are beneficial for establishment and production of the quantum communication system and the application promotion of the quantum communication system in life.

Description

technical field [0001] The invention relates to the technical field of quantum communication, in particular to a secure communication system for realizing encryption, decryption and transmission of information based on a quantum network. Background technique [0002] With the outbreak of the information revolution in the 21st century and the continuous development of science and technology, how to ensure the secure communication between users is the current research focus. Realizing information security such as data encryption, transmission and privacy, whether it is a company that conducts daily business activities, or government agencies, banks, etc. have urgent needs for this, especially in today's globalized economy era, to ensure the unconditional security of information , is one of the focuses of the current public attention. It was first proposed that the transmission of communication information between users is almost all plaintext information, which is very easy t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08
CPCH04L9/0852
Inventor 富尧钟一民
Owner ZHEJIANG SHENZHOU QUANTUM NETWORK TECH CO LTD
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