PROJECT TITLE :

Covert communications through mobile voice channels

ABSTRACT:

The speedy development and growth of cellular mobile networks lately has made voice channels widely offered virtually everywhere. On the opposite hand, voice dedicated channels possess properties that create them ideal choices for top priority real-time secure communications. Beside these realities, info embedding has gained outstanding attention in recent years because of its potential application in multimedia security. In this regard, this study aims to propose an economical theme for knowledge hiding to show the feasibility of exploiting these channels for covert communications. To this finish, the authors propose new suboptimal but practical schemes based mostly on additive and multiplicative unfold spectrum ways. The analytical evaluations of the proposed techniques along with simulation results show correct potency of those schemes. Moreover, it's shown that the proposed scheme primarily based on the M-ary bi-orthogonal general maximum likelihood and M-ary bi-orthogonal generalised embedding of multiplicative watermarks techniques outperform the other proposed schemes in this study. Experimental analysis confirms that the proposed knowledge hiding scheme benefits from an acceptable level of imperceptibility. Finally, the authors propose a security block which significantly will increase the robustness of proposed structures against histogram-primarily based steganalysis.