Research On Information High-Bit Spatial Hiding Method Based On Logistic Chaotic Map

Information hiding technology is a new information security technique, which is growing and developing along with the rapid progress of Internet and multimedia, it supplies an effective method to solve the problem of security transmitting of secret information. Information hiding technology is becoming one of the most popular researches at the present time. It is closely tied up with traditional data encryption, development and fusing of them will be an indispensable security assurance for the development of information technology. Chaotic systems have been extensively used in cryptanalysis and communications because of its characteristics of noise-like, unpredictable deterministic orbits and sensitivity to initial condition and parameters.In this paper, we firstly describe the information hiding develop present condition and some advanced research on information hiding technology, then analyze the application actuality and foreground of chaos in the field of information hiding. Considering the character of human visual system, we exploit some new theories and methods for gray image in secret information embedding strategy and extraction method, and present a spatial high bit information hiding algorithm. The hiding capability of the algorithm which has the same robustness is larger than any other algorithm. And the algorithm is improved in order to resist the SPA attacking which is the main spatial steganalysis.Experimental results demonstrate that the chaotic map is introduced to the algorithm increasing the capability and sensibility of key, the algorithm can resist the noise interference and others perfectly, the hiding capability of the algorithm reach above 50%, hiding and extracting process are easy to realize, Embedding strategy and extraction method are very simple, moreover the secret information detection is blind, namely secret information extraction is performed without resorting to the original carried image.