Design And Analysis Of Quantum Information Hiding Protocols In Quantum Secure Communication

Quantum communication,which is based on the laws of physics,has absolute security in theory.Compared with classical information science,quantum information hiding ensure the information transmitted cannot be clonned and has non-locality character.Quantum steganography,as a branch of quantum information,can be divided into two categories.One is that realizes covert communication based on single-particle or multi-particles quantum states by making full use of their physical characteristics.The other category is quantum steganography based on quantum multi-media with different quantum representations.In this paper,we introduce the main contents as follows:(1)An anti-noise bidirectional quantum steganography protocol with large payload protocol is proposed.The new protocol introduces the bidirectional quantum remote state preparation into the bidirectional quantum secure communication,which enables the normal information communication and secret information communication simultaneously.Furthermore,it introduces relevant anti-noise solutions for the new algorithm after theoretical quantum noises analysis.Finally,the performance analysis give the conclusion that the new protocol not only has good imperceptibility,high security,but also large payload.(2)A novel controlled flexible representation for quantum image(CFRQI)is firstly proposed.Next,a novel secure controlled quantum image steganography algorithm is proposed based on CFRQI,which controlled access mechanism is equivalent to an identity authentication system with itself.Only the authorized recevier is capable of obtaining the correct secret information.Furthermore,as a blind extraction algorithm,there is no need to use any auxiliary information when extracting secret information.Finally,the simulation experiment results prove our conclusions above and the quantum circuits designed also indicate its good applicability.(3)A secure quantum video steganography protocol with large payload based on the video strip encoding method called as MCQI(Multi-Channel Quantum Images)is proposed.The new protocol randomly embeds the secret information with the form of quantum video into quantum carrier video on the basis of unique features of video frames.It exploits to embed quantum video as secret information for covert communication.As a result,its capacity are greatly expanded compared with the previous quantum steganography achievements.The simulation and experiment results prove that the algorithm not only has good imperceptibility,high security,but also large payload.