Security data communication achieving method based on quantum key distribution

Abstract

The invention discloses a security data communication achieving method based on quantum key distribution. In traditional data communication based on quasi single-photon source quantum key distribution, a large number of quantum bits will be consumed in the data reconciliation process, and quantum key distribution efficiency is low. According to the security data communication achieving method based on quantum key distribution, a new quantum security communication model is built, the data reconciliation process is omitted, original key error codes are equivalent to channel error codes, and data secrecy transmission is achieved by exchanging the encryption and decryption sequence and the channel coding frequency. Dolay coding with the high error correcting capability is adopted for channel coding, original keys are used for encrypting and decrypting the coded data in a one-time pad mode, Dolay decoding is carried out on the decrypted data with error codes, and verification is carried out in an experiment system. Research results show that the quantum key distribution process is simplified, the key security is enhanced, computing and communication resources are saved, the key generating rate is improved, and a new idea is provided for quantum key distribution.

Description

technical field [0001] The present invention relates to a secure data communication implementation method based on quantum key distribution, in particular to a data processing method that equates the code error of the original key to the channel code error, specifically a method based on quantum key distribution that omits the data coordination process A secure data communication implementation method for quantum key distribution. Background technique [0002] At present, the realization of data communication based on quantum key distribution includes steps such as quantum signal transmission, data screening, quantum bit error rate estimation, data coordination, and data encryption. [0003] In actual communication, on the one hand, it is required that the bit error rate of the keys of both communication parties should be low enough not to affect the actual use; on the other hand, according to the current technical level, under the condition of no eavesdropping, a quantum ke...

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Problems solved by technology

[0007] The purpose of the present invention is to solve the problems that the bit error rate of the original key obtained by quantum key distribution is too high, and the bit error rate can only be reduced through data coordination, but the interaction process of data coordination is complicated, and too much information is leaked through classical channels. A method for exchanging data error correction and encryption and decryption, which equates the error code of the original key to a channel error code to realize data communication

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