Two-component steanographic system based on ratio of linear functions of two signals using an additive type of embedded signal communication

The implementation of a two-component container can significantly expand the capabilities of known steganographic methods due to occurrence of new properties. A two-component container consists of two functions of two variables, one of which is a hidden signal and the other is a container signal. The article considers the functions of component formation based on the ratio of the linear functions of two signals. The expressions for forming the components and the expression for restoring the hid-den signal are ratios and have break points. It requires analysis and determination of the conditions for the formation of the container. The article presents the results of the analysis of a two-component steganographic system with a non-linear container in the area of the break of the restore function of the informative signal. Key coefficients are determined from the point of view of ensuring the greatest sensitivity of the system to the error introduced in the value of the coefficient. An analysis is made of the influence of the error added into the key coefficient on the shape of the recovered signal.