A Method for Covertly Embedding Encrypted Information into Raster Images Using Coordinate Masking
A. BogdanovSt. Petersburg State University, St. Petersburg, RussiaZh. KiyamovSamarkand Branch of Tashkent University of Information Technologies, Samarkand, UzbekistanN. ShchegolevaSt. Petersburg State University, St. Petersburg, RussiaA. DikSt. Petersburg State University, St. Petersburg, RussiaSh. ErgashevMilitary Institute of Information and Communication Technologies, Tashkent, UzbekistanI. MiralievSamarkand Branch of Tashkent University of Information Technologies, Samarkand, Uzbekistan
2026en
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ABI
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Abstract The paper proposes a method for hidden encryption of text information that combines the symmetric AES algorithm and elements of visual steganography. The text is encrypted using a 128-bit key presented in hexadecimal format, and the encryption result is also converted into hexadecimal blocks. A JPG image is used as a container, which is segmented into fragments. The coordinates for embedding encrypted data are determined based on paired key values. Each block of encrypted text is encoded as a color value and embedded in the corresponding image segment. The proposed approach provides an additional level of security by combining cryptographic and steganographic protection.
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