A Novel Quantum Stegonagraphy Based on Brown States  

作　　者：Zhiguo Qu Tiancheng Zhu Jinwei Wang Xiaojun Wang 

机构地区：[1]Jiangsu Engineering Center of Network Monitoring,Nanjing University of Information Science and Technology,Nanjing 210044,P.R.China [2]School of Computers&Software,Nanjing University of Information Science and Technology,Nanjing 210044,P.R.China [3]School of Electronic Engineering,Dublin City University,Dublin,Ireland

出　　处：《Computers, Materials & Continua》2018年第7期47-59,共13页计算机、材料和连续体（英文）

基　　金：This work was supported by the National Natural Science Foundation of China(No.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.

摘　　要：In this paper,a novel quantum steganography protocol based on Brown entangled states is proposed.The new protocol adopts the CNOT operation to achieve the transmission of secret information by the best use of the characteristics of entangled states.Comparing with the previous quantum steganography algorithms,the new protocol focuses on its anti-noise capability for the phase-flip noise,which proved its good security resisting on quantum noise.Furthermore,the covert communication of secret information in the quantum secure direct communication channel would not affect the normal information transmission process due to the new protocol’s good imperceptibility.If the number of Brown states transmitted in carrier protocol is many enough,the imperceptibility of the secret channel can be further enhanced.In aspect of capacity,the new protocol can further expand its capacity by combining with other quantum steganography protocols.Due to that the proposed protocol does not require the participation of the classic channel when it implements the transmission of secret information,any additional information leakage will not be caused for the new algorithm with good security.The detailed theoretical analysis proves that the new protocol can own good performance on imperceptibility,capacity and security.

关 键 词：Quantum steganography quantum secure direct communication ENTANGLEMENT anti-noise robustness 

分 类 号：O41[理学—理论物理]