VoIP Steganography, Applications and Challenges

Steganography on the VoIP Platform is a Real-time network Steganography Method, It uses VoIP Protocols as a cover channel to hide messages. At the moment, real-time steganography is one of the challenging research areas. The reason for this is the inherent characteristics of the transfer of information in real time, which limits the complexity of operations. In this paper, we first describe the definition of Steganography and describe the VoIP concept briefly, and then we will describe some of the work done in this field. In continuation, we express the way VoIP works and the problems that we face, and then we consider the concept of VoIP Steganography and describe its challenges. Finally, introduce some of the most widely used methods of VoIP Steganography, and then we compare the different ways of VoIP steganography with each other, and discuss the weaknesses and strengths of each of them. In the final section of this paper, we will give the research results.