Description: The article discusses issues related to the development of a method for increasing the throughput of a covert channel for information processing and transmission of video information resources. The development of systems that use images and video for data transmission forces the introduction of digital steganography methods to protect data. The purpose of the work is to find new approaches to improve the efficiency of hidden information transmission systems in telecommunication systems based on the steganographic method with high rates of stability and throughput. The task of scientific work is to study the methods of digital steganography. The following methods have been analyzed and investigated: the discrete wavelet - transform method, the Bengh - Memon - Eo - Jung method, the least significant bit method, the Koch - Zhao method. As a result of the analysis, it was found that digital steganography methods have several disadvantages: low resistance to attacks, low bandwidth, a small amount of steganographic capacity and are unstable when transmitting images and active enemy attacks, data loss is possible. In order to steganographically hide data, a method has been developed that is implemented by integrating discrete wavelet transform and Bengam-Memon-Eo-Young methods. The concept of steganographic data hiding to increase throughput is proposed. For comparison, the primary areas of the image were selected. Using the developed method, selected blocks are resistant to compression attacks and introduce slight distortions into the image, which allows using images for steganographic data hiding. The developed method is resistant to known active attacks and steganographic analysis by the enemy.
Keywords: digital steganography, bandwidth, attack, discrete wavelet – conversion
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