Abstract
This paper proposes a novel technique of camouflaging a block of binary data in an audio file for secured covert communication. The phase of the cover signal is used as a medium for steganography. Cover signal may be a song or a speech signal. Instead of modifying the absolute phase values of selected component frequencies, the difference between the phase values of the selected component frequencies and their adjacent frequencies of the cover signal are modified by a small amount to hide data bits. The change is so minute that it hardly alters the phase spectrum and is imperceptible to human auditory system(HAS). This technique provides robustness, noise insensitivity, high data capacity and almost accurate data recovery from the cover signal.
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© 2011 Springer-Verlag Berlin Heidelberg
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Parab, N., Nathan, M., Talele, K.T. (2011). Audio Steganography Using Differential Phase Encoding. In: Shah, K., Lakshmi Gorty, V.R., Phirke, A. (eds) Technology Systems and Management. Communications in Computer and Information Science, vol 145. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-20209-4_20
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DOI: https://doi.org/10.1007/978-3-642-20209-4_20
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-20208-7
Online ISBN: 978-3-642-20209-4
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