FIELD: computer equipment.
SUBSTANCE: method of protecting a communication system comprises generating, on a transmitting side of a communication system, a graphic file with a raster array of m rows and n pixel values in each row; chaotic permutation of pixels in a bitmap array to encrypt data; on the receiving side, the graphic file is sent to the file conversion device, where the encrypted page is displayed on a display with a matrix of size (m×n) and photographed by a photo/video camera with a photosensitive matrix of the same size (m×n); performing decoding, rearranging pixels of raster array of photo file into initial position.
EFFECT: technical result is protection of communication system from malicious software penetration from Internet.
10 cl, 7 dwg
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