Design and implementation of steganographic speech telephone

Authors:
Zongyuan Deng;Zhen Yang;Xi Shao;Ning Xu;Chao Wu;Haiyan Guo
Affiliations:
Nanjing University of Posts and Telecommunications, Nanjing, China;Nanjing University of Posts and Telecommunications, Nanjing, China;Nanjing University of Posts and Telecommunications, Nanjing, China;Nanjing University of Posts and Telecommunications, Nanjing, China;Nanjing University of Posts and Telecommunications, Nanjing, China;Nanjing University of Posts and Telecommunications, Nanjing, China
Venue:
PCM'07 Proceedings of the multimedia 8th Pacific Rim conference on Advances in multimedia information processing
Year:
2007

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Abstract

This paper explains the work to design an information hiding based secure communication system, named covert speech telephone (CST). The overall system is designed over the internet using UDP protocol. Based on a GUI (graphical user interface) software, CST is possible to execute two optional secure modes. It is a completely digital system with high speech quality. Practical effects show that CST can meet the requirement of real-time secure communication. This new technique can effectively guarantee information security in VoIP system.