Cryptography: Theory and Practice
Cryptography: Theory and Practice
Attacks on Steganographic Systems
IH '99 Proceedings of the Third International Workshop on Information Hiding
On the limits of steganography
IEEE Journal on Selected Areas in Communications
Spread spectrum image steganography
IEEE Transactions on Image Processing
Capacity estimates for data hiding in compressed images
IEEE Transactions on Image Processing
WhiteSteg: a new scheme in information hiding using text steganography
WSEAS Transactions on Computers
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In this paper a wavelet-based steganographic method is proposed for robust short-message hiding. The message is embedded into the most significant wavelet coefficients of a cover image to provide invisibility and resistance against lossy transmission over cellular networks, compression or other distortion. The architecture consists of three modules. In the first module the initial message is enciphered by an encryption algorithm. The enciphered message is imprinted onto a white-background image to construct the message-image to be hidden. In the second module the cover image is decomposed into two levels with seven subbands, using the DWT. Next Qualified Significant Wavelet Trees (QSWTs), which are paths of significant wavelet coefficients, are estimated for the highest energy pair of subbands. During the third module the message-image is redundantly embedded to the coefficients of the best QSWTs and the IDWT is applied to provide the stego-image. The robustness and efficiency of the proposed steganographic system is evaluated under various loss rates, combined with different JPEG compression ratios.