DESIGN OF GRAPHIC HASHES WITH SALT BASED ON THE METHOD OF CODING OF UUID
DOI:
https://doi.org/10.28925/2663-4023.2026.32.1089Keywords:
graphical hash, data protection, UUID encoding, visual cryptography, secure identification, hash with saltAbstract
The article proposes a new model of graphic hashing based on the method of encoding unique identifiers UUID (Universal Unique Identifier) into a graph and an addition to this method that converts identifiers into unique visual representations protected from unauthorized reproduction. A method for constructing graphic hashes based on UUID is developed. combines cryptographic uniqueness with visual interpretation, creating one-time and permanent graphic keys with minimal requirements for server resources. The proposed graphic hashing model converts UUID into a graphic image with a visual addition of salt. The approach combines numerical UUID identifiers with a two-dimensional spatial representation and a salting mechanism to create a visually interpreted but cryptographically protected hash image. In this case, the salt is partially drawn on the image. The method provides a two-layer verification mechanism - mathematical and visual - increasing the level of protection of digital records and reducing the risks associated with attacks. A method for creating a subset of hashes based on a single unique identifier is also proposed with the possibility of constructing a function for storing the rules for generating one-time keys, and considering approaches for selecting parameters for it and encryption. A mechanism for creating graphic one-time hash codes based on creating a set with a time stamp, based on a single unique identifier, is presented. Strategies for generating such hashes – server-based and client-based – are considered. A method for integrating the third dimension into a graphic two-dimensional hash through drawing geometric parameters for multilayer metadata encoding is proposed. The resulting technique is effective for relational databases, publication systems, archives of digital objects and environments where authenticity verification is required without revealing the original data.
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Момрик, Я. (2025). ПІДХОДИ ДО БЕЗПЕЧНОГО ЗБЕРЕЖЕННЯ ТА ОПРАЦЮВАННЯ ДАНИХ НА ОСНОВІ UUID ІДЕНТИФІКАТОРІВ – МЕТОД ГРАФІЧНОГО ПРЕДСТАВЛЕННЯ. Електронне фахове наукове видання «Кібербезпека: освіта, наука, техніка», 3(31), 140–154. https://doi.org/10.28925/2663-4023.2025.31.1010
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