Аннотация:
Modern energy systems are often used as a medium for information transmission, including
confidential information, which makes relevant the task of ensuring its security, which today is solved
using not only cryptographic but also steganographic means that ensure concealment of the very fact
of confidential information transmission. The steganographic method with code control of the additional information embedding possesses practical important qualities, but in its original form requires
the presence of a container for successful information extraction, which is not always desirable in
practice, while the known modification of this steganographic method allows blind decoding is characterized by an insufficient level of resistance to attacks against the embedded message. The purpose of
this paper is to improve the efficiency of the steganographic method with code control of the additional information embedding and blind decoding. This purpose was achieved by identifying two factors
that determine the occurrence of errors during blind decoding of additional information in the steganographic method with code control: variation of sub-blocks, and errors caused by attacks against
the embedded message. We propose the theoretical and practical rationale for codewords that provide
the best level of resistance to both factors. The most significant result of the paper is a reduction in the
number of decoding errors of the steganographic method with code control of the additional information embedding and blind decoding by 12.01% compared to the result known in the literature
through a reasonable choice of codewords used to embed the additional information.