Abstract
The purpose of the article: development of software-implemented ways to increase the security of information from leakage through spurious electromagnetic radiation of a DVI video system. Research method: search for brightness gradations of RGB primary colors that form similar levels of spurious electromagnetic radiation by enumeration of experimental data obtained from fragments of the reconstructed image. Results: the first part of the article provides a review and analysis of the literature on the features of the functioning of the video interface of the DVI standard. The main characteristics of the TMDS coding algorithm, which can affect the parameters of spurious electromagnetic radiation of the video interface of modern computer technology, are considered. The second part of the article presents an experimental setup for analyzing the relationship between the visual contrast of an image and changes in the intensity of electromagnetic spurious emissions from a DVI video system. On the basis of an experimental comparison of the intensity values of side electromagnetic radiation for different color shades specified by RGB combinations, the possibility of using such pairs of color tone combinations that, on the one hand, are acceptable for the perception of information by the operator, and, on the other hand, have practically indistinguishable levels of side effects, is shown. electromagnetic radiation. The third part of the article (this is for the existing one) presents a method developed by the authors to increase the security of information from leakage through spurious electromagnetic radiation of a DVI video system. The possibility of implementing the proposed method for reducing the information content of spurious electromagnetic radiation of a video system when displaying two-color images is shown.
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