ABSTRACT
This chapter presents a new method for breaking steganalytic systems. In general, the steganalytic systems can be categorized into two classes: spatial-domain steganalytic system (SDSS) and frequency-domain steganalytic system (FDSS). It discusses genetic algorithm (GA)-based breaking algorithm on SDSS and FDSS. The SDSS is adopted for checking the lossless compressed images by analyzing the spatial-domain statistical features. In literature, several papers have presented the algorithms for steganographic and steganalytic systems. Very few papers have discussed the algorithms for breaking the steganalytic systems. R. Chu et al. presented a discrete cosine transformation (DCT)-based steganographic system by using the similarities of DCT coefficients between the adjacent image blocks where the embedding distortion is spread. GA-based breaking algorithm on the JFDSS is intended to minimize the differences between the two histograms of a stego-image and its cropped-image. J. Fridrich et al. presented an FDSS for detecting the Joint Photographic Experts Group stego-images by analyzing their DCT with cropped images.
