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A method of ciphertext transmission based on quantum key

A quantum key and ciphertext transmission technology, applied in the field of communication, can solve problems such as the paralysis of the confidential information transmission network, and achieve the effects of ensuring uninterrupted transmission, enhancing reliability, and reducing the impact of attacks

Active Publication Date: 2019-03-29
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the quantum channel transmission key cannot be deciphered, if the other party adopts a large-scale communication interference attack method, it will inevitably have an important impact on the transmission of confidential information, and even lead to the paralysis of our confidential information transmission network

Method used

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  • A method of ciphertext transmission based on quantum key
  • A method of ciphertext transmission based on quantum key
  • A method of ciphertext transmission based on quantum key

Examples

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] see figure 2 , is a schematic flow diagram of an embodiment of the quantum key-based ciphertext transmission method provided by the present invention, the method includes the following steps 101 to 103, and each step is specifically as follows:

[0029] Step 101: Before sending the plaintext to be communicated, the sending terminal sends the generated first quantum key to the receiving terminal through the quantum channel, and checks whether the quantum cha...

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Abstract

The invention discloses a ciphertext transmission method based on a quantum key. The method comprises the following steps that: a transmitting terminal transmits a generated first quantum key to a receiving terminal through a quantum channel before transmitting a plaintext needing to be communicated, and detects whether the quantum channel is secure or not, so that the receiving terminal stores the first quantum key when the quantum channel is determined to be secure; the transmitting terminal encrypts the plaintext needing to be communicated according to the first quantum key and a key conversion number N to obtain a first ciphertext; and the transmitting terminal transmits the first ciphertext to the receiving terminal, so that the receiving terminal parses the first ciphertext, acquiresthe key conversion number N, and decodes the first ciphertext according to the stored first quantum key and key conversion number N to obtain a plaintext needing to be communicated. Through adoptionof the ciphertext transmission method in the embodiment of the invention. the impact of attack on the communication channel made by an intruder can be lowered, so that the quantum channel can continueto transmit confidential messages after being interrupted by listening.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a quantum key-based ciphertext transmission method. Background technique [0002] When there is an eavesdropper in the traditional physical channel, since the eavesdropper will not change and affect the information signal, the sending and receiving parties will not know the existence of the eavesdropper, and, with the development of supercomputer technology and the emergence of quantum computers, making The deciphering speed of software encryption is getting faster and faster, so that the ciphertext transmitted through the traditional channel faces an increasing risk of being deciphered. [0003] Quantum communication uses physical principles to solve the problem of secure key distribution. When information is carried by quantum, according to the principle of quantum mechanics, the position of particles in the microscopic world cannot be determined, and it always exists in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/70H04L9/06H04L9/08H04L29/06
CPCH04B10/70H04L9/0631H04L9/0819H04L9/0852H04L9/0861H04L63/0428H04L63/06
Inventor 方滨兴田志宏李树栋崔翔殷丽华谭庆丰王乐韩笑
Owner GUANGZHOU UNIVERSITY
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