摘要
In the field of quantum communication,quantum steganography is an important branch of quantum information hiding.In a realistic quantum communication system,quantum noises are unavoidable and will seriously impact the safety and reliability of the quantum steganographic system.Therefore,it is very important to analyze the influence of noise on the quantum steganography protocol and how to reduce the effect of noise.This paper takes the quantum steganography protocol proposed in 2010 as an example to analyze the effects of noises on information qubits and secret message qubits in the four primary quantum noise environments.The results show that when the noise factor of one quantum channel noise is known,the size of the noise factor of the other quantum channel can be adjusted accordingly,such as artificially applying noise,so that the influence of noises on the protocol is minimized.In addition,this paper also proposes a method of improving the efficiency of the steganographic protocol in a noisy environment.
基金
This work was supported by the National Natural Science Foundation of China(Nos.61373131,61303039,61232016,61501247)
the Six Talent Peaks Project of Jiangsu Province(Grant No.2015-XXRJ-013)
Natural Science Foundation of Jiangsu Province(Grant No.BK20171458)
the Natural Science Foundation of the Higher Education Institutions of Jiangsu Province(China under Grant No.16KJB520030)
Sichuan Youth Science and Technique Foundation(No.2017JQ0048)
NUIST Research Foundation for Talented Scholars(2015r014),PAPD and CICAEET funds.
