THE IMPACT OF PRE-CRYPTOGRAPHIC CODING MESSAGES ON ITS DETECTABILITY IN STEGANOGRAPHIC SYSTEMS

The usual problem of steganography is to mask an important message in a covering object that is of no interest to the attacker. In this case, attention is paid to protection from detection of the very fact of the message embedding a, since if an attacker suspects the presence of a hidden message in the transmitted information object, he can destroy the message. By the way no attention is paid to reading tolerance in steganography, since it is believed that this issue is solved by preliminary crypto-graphic encryption of the message. However, such encryption affects statistical parameters of the message, which plays an important role in the steganographic system formation. The artiсle is devoted to the analysis of the influence of cryptographic coding on the potential detectability of the message after steganographic masking. The results of the study on the influence of crypto-graphic coding on the transmitted data distribution values when using the «Kuznyechik» cipher are presented.