AN IDEAL STEGANOGRAPHIC SCHEME IN NETWORKS USING TWISTED PAYLOAD

Logesh R

Abstract: With the rapid development of network technology, information security has become a mounting problem. Steganography involves hiding information in a cover media, in such a way that the cover media is not supposed to have any confidential message for its unintentional addressee In this paper, an ideal steganographic scheme in networks is proposed using twisted payload. The confidential image values are twisted by using scrambling techiques.The Discrete Wavelet Transform (DWT) is applied on cover image and Integer Wavelet Transform (IWT) is applied to the scrambled confidential image. Merge operation is done on both images and Inverse DWT is computed on the same to get the stego image. The information hiding algorithm is the reverse process of the extracting algorithm. After this an ideal steganographic scheme is applied which generates a stego image which is immune against conventional attack and performs good perceptibility compared to other steganographic approaches.

Keywords: Network security, Steganography, Discrete Wavelet Transform, Integer Wavelet Transform, Modified Arnold Transform, Merge Operation, Quality Measures

DOI: https://doi.org/10.15623/ijret.2013.0210038