A New Robust Audio Signal Steganography Based On Multiple Chaotic Algorithms With Edge Detection Technique

This paper proposes a novel robust blind steganography scheme for embedding audio signal into edge of color image based on a chaotic map and LSB method,which is different from someexisting works. In this paper, we employed the LSB substitution technique and chaos as a fundamental stage and wealso take advantage of edge detection technique. The present paper improved security by using of chaotic maps. Chaotic mapsare used for two important applications in our scheme: selectingof random location in edge pixels for embedding and extraction and selecting of random bit location in LSB of pixel byte.The suggested scheme is robust, secure and flexible. In the extractionprocedure, the stegocanbeextractedfromthe stegoimage without the requirementof the originalhost colo r imageortheoriginalstegoimage.Experimentalresultsshowthattheproposedaudiosteganographyschemehasstrongerrobustnessagainstattack, BecauseThe chaotic map was implemented to increase both the number of keys (control parameters) and complexities involved in the algorithm. The size of key space for initial conditions and control parameters were computed about 1028.

کلیدواژه ها:

Steganography ، Security ، Robustness ، Chaos ، logistic Map ، Edge detection