Method of Masking Transmitted Information

The processes of globalization, the emergence and active development of cyberspace have led to the need to protect information transmitted in the framework of information exchange. Existing approaches to information protection, in particular its encryption, steganography, etc. from the point of view of information exchange have a number of unmasking features that, despite the undoubted reliability of these approaches, significantly reduce the secrecy of information transmission. The proposed article considers an approach that allows for the hidden transmission of protected information over open communication channels, by masking the transmitted information. The development of the proposed approach was carried out in stages. at the first stage, a method for masking the transmitted information was developed and patented. At the next stage, on the basis of the developed method, a functional model of client and server applications of the hidden information transmission complex is created. The transfer of masked information is proposed to be carried out using the developed protocol of hidden information transfer. The block diagram of the package of the proposed Protocol for transmitting hidden information, the implementation and use of the Protocol at the application level are presented in this paper. At the final stage, a software implementation of the proposed approach was developed and modeling of information exchange at different offset Windows was performed. the paper presents a functional model of the developed complex, a scheme of interaction of functional modules, and a block diagram of the proposed approach to masking the transmitted information. Increasing the secrecy of information transmission is provided by the procedure for converting a carrier message into a marker message by forming an offset window, as well as using an array of digital records to select the carrier message. The proposed approach allows you to use a smaller carrier message when increasing the window size and using a sliding window depending on the size of the information message, you can choose the optimal size of the carrier message and the offset window.

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