Nikitenko L. The methods for the design stable steganosystems

For information-theoretic model for steganography the conditions were drawn that are sufficient for the stability criteria performance with respect to passive statistical attacks. The concept the - approached distribution con-cerning known distribution was entered for definition of these conditions. In the basic stability criterion was used of the relative entropy limitation, in the alternative stability criterion was used the root-mean-square deviation between distribution of containers and steganograms limitation. The linear invariant to the shift smoothing filters active attack impact on digital signals was studded. Quasilinear and quasiplanar digital signals con-cepts ware defined. The information embedding possibility in the components phases in the Fourier field and in the parameters of the quasilinear and quasipla-nar digital signals was shown that is smoothing operation stability. Three new methods development directions of embedding of the classified information ware considered that are steganostability to the passive attacks. The embedding possibilities ware extended that are given by digital matrix of the image in the first direction. The image maintenance was offered to use in the second direction. The optical illusions possibilities were investigated to use in the third direction.