Covert Channels in SIP for VoIP signalling
classification
💻 cs.MM
cs.CR
keywords
callchannelscovertsignallingsteganographictechniquesvoipamount
read the original abstract
In this paper, we evaluate available steganographic techniques for SIP (Session Initiation Protocol) that can be used for creating covert channels during signaling phase of VoIP (Voice over IP) call. Apart from characterizing existing steganographic methods we provide new insights by introducing new techniques. We also estimate amount of data that can be transferred in signalling messages for typical IP telephony call.
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