Zazhoma V. The method for increasing the security of steganographic message based the use of a key element

The thesis is devoted to the development of the method for increasing the security of steganographic message based on the use of container key element. In this paper, the method for embedding the data into image container, based on LSB method which is based on the use of selected container element as the key element to increase the security of a message, the variability of algorithms for information embedding and the reliability of its transmission, is developed, thereby improving the quality of the systems of data steganographic protection. The method to increase the variability of algorithms for embedding a steganographic message on the basis of conditional information reservation is developed, that has provided a factorial increase in the possible number of algorithms for information embedding and the increase of the reliability of the key element transfer. Methods for synthesizing of algorithms for steganographic message embedding have been improved on the basis of the use of redundant positional notation systems, which control errors, that has made it possible to expand a set of embedding algorithms and to ensure an increase in the reliability of message transmission.