Abstract
This paper prevents the steganographic method for IP telephony called transcoding steganography (TranSteg). Typically, in TranSteg, it is the overt data that is to compress to make space for steganogram. TranSteg finds appropriate codec that will result in the voice quality similar to the original. In signature-based system, the signature of the voice payload is appended to the packet to provide integrity. The signature of the data becomes invalid when there is some change in voice data. This method detects the hidden communication between a VoIP call. The signature-based scheme concept is described in this paper.
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Rahman, A., Amritha, P.P. (2015). Using Signature for Hidden Communication Prevention in IP Telephony. In: Suresh, L., Dash, S., Panigrahi, B. (eds) Artificial Intelligence and Evolutionary Algorithms in Engineering Systems. Advances in Intelligent Systems and Computing, vol 325. Springer, New Delhi. https://doi.org/10.1007/978-81-322-2135-7_52
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DOI: https://doi.org/10.1007/978-81-322-2135-7_52
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