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Research and Application of Information Hiding Algorithm

Along with the development of the computer technology and the Internet, information hiding is given increasing attention. All kinds of the important information, such as government information, business information, personal privacy etc, should be transmitted safely. In the future, information hiding will play a very important role in the network to protect the information from damage. The content of this thesis is presented as follows: The analysis of the basic theory and concept of information hiding; The analysis and application of the space domain algorithms, transform (frequency) domain algorithm, etc focusing on the technology of digital watermarking, covert channel and anonymous communications. The theory of wavelet analysis and the experimental models are discussed deeply, basing on which the research and application of the wavelet is explored in the field of information hiding.