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Research on Audio Information Hiding Technology in Network Communication

Wang Junjie Zhang Xiaoming Department of Information Science and Technology,Beijing University of Chemical Technology,Beijing 100029 Department of Automation ,Beijing Institute of Petro-chemical Technology ,Beijing 102617  
As an important part of network communication security,information hiding technology focuses on the undetectability of hidden message.Using this technology,secret information may be embedded into audio files,so as to realize covert communication.At first,the basic model of covert communication based on information hiding is introduced,and the characteristics of information hiding in network environment are analyzed.Then the information hiding technologies in network secret communication are compared with each other,and methods of checking the hidden information are studied.At last,the application,limitation and trend of development in this research area are pointed out.
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