Research On Specific Information Hiding Algorithm Based On Audio Carrier

The rapid development of the Internet industry has promoted the maturity of mobile multimedia technology,more and more data transmission services of mobile terminals come with it.How to protect the security of the data transmission process has become a hot problem in wireless communication technology research.In order to solve the problem of information security,information hiding technology has emerged and developed rapidly,and has been widely used in copyright protection,hidden communication and content authentication.It has better camouflage to achieve secure communication of data by hiding secret information with multimedia products.In particular,the use of audio information to achieve the hiding of specific information has a certain theoretical significance and practical application value.In this paper,a research on information hiding technology with audio signal as the carrier is carried out,an audio hiding algorithm based on LWT-SVD and differential evolution algorithm is proposed,and the audio hiding application is implemented on the windows platform.The main work is as follows:(1)This paper first introduces the basic principles of audio hiding technology,analyzes the implementation principles and their respective advantages and disadvantages of common classical audio hiding algorithms,after that,it discusses the evaluation criteria and common attack methods of audio hiding technology.(2)An audio hiding algorithm based on LWT-SVD and differential evolution algorithm is proposed in this paper.First,we perform Logistic chaotic encryption on certain information to improve security.Afterwards,the audio signal is LWT transformed to acquire its low frequency for the further segmentation processing.Then we perform SVD decomposition on each piece and select the maximum value of the singular value matrix as the embedding position.Finally,combined with the differential evolution algorithm,the optimal embedding intensity of balance robustness and imperceptibility is solved,and information hiding is done by the best embedding intensity by parity quantization.The simulation results based on MATLAB software show that the algorithm is feasible and has good transparency,and it can resist attack at the same time.(3)The programming of this paper implements the application of audio hiding algorithm based on LWT-SVD and differential evolution algorithm.The application system mainly includes three modules:information hiding,information extraction and carrier update.The system can realize the embedding and extraction of specific information in the audio carrier,which opens up a positive idea for the practical application of audio hiding algorithm.