TY JOUR TI Cross-platform application for protection of a wide range of products from counterfeiting KW protection of products from counterfeiting KW cross-platform application KW client-server architecture KW electronic digital signature KW mathematical methods of image processing KW method of estimating the angles of triangles KW method of estimating the decay times of luminescence KW packaging polymeric films KW luminophores for package coding KW mobile devices JO Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics AU Zakharenko, K.. AU Chistyakova, T.. AU Polosin, A.. PY 2025 IS 2025 PB Astrakhan State Technical University