Pustovit, O.Ustimenko, V.2025-10-212025-10-212025Pustovit, O. On new message authentication codes generating sensitive digests of digital documents / Pustovit O., Ustimenko V. // Theoretical and Applied Cybersecurity : Матеріали ІІІ Всеукраїнської науково-практичної конференції (TACS-2025), [Київ], 29 травня 2025 р. / НН ФТІ, КПІ ім. Ігоря Сікорського. - Київ, 2025. - С. 49-52.https://ela.kpi.ua/handle/123456789/76953Specialists must use well checked documents to elaborate well founded decisions and plans. Check tools include cryptographically stable algorithms for compressing a large file into a digest of a specified size, sensitive to any change in the characters on the input. New fast compression algorithms are proposed, whose cryptographic stability is associated with complex algebraic problems, such as the study of systems of algebraic equations of large power and the problem of the expansion of nonlinear mapping of space by generators. The proposed algorithms for creation of change-sensitive digests will be used to detect cyberattacks and audit all system files after a registered intervention.encybersecurityhash functionsmessage authentication codescompression homomorphismhighly nonlinear cryptography from many variablesnon-commutative cryptographyArticleС. 49-52