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As a popular real-time service on the Internet, Voice over Internet Protocol (VoIP) communication attracts more and more attention from the researchers in the information security field. In this study, we proposed a VoIP steganographic algorithm with variable embedding capacities, incorporating AES and key distribution, to realize a real-time covert VoIP communication. The covert communication system...
Smart grid has been spread worldwide, but its data security and privacy have not got enough attention. In this paper, we propose a VoIP steganography method based on AES to achieve a real-time covert communication over smart grids. The covert communication system is implemented by embedding secret message encrypted with symmetric cryptography AES into an audio signal encoded by PCM codec. In order...
VoIP is a telephony application which transmits the compressed voice in packets over the Internet. The voice packets are subject to eavesdropping on the public network, since the Internet possesses the inherent security vulnerabilities. In order to protect users' privacy and voice packets confidentiality, an authentication module with encryption should be imposed during VoIP communications to ensure...
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