TCC - Bacharelado em Ciência da Computação (UAG)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/2952
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Resultados da Pesquisa
Item QRQueijo: sistema para validação e emissão de identificadores de queijos utilizando Blockchain(2019-07-12) Silva, Ademário José da; Mendonça, Sérgio Francisco Tavares de Oliveira; http://lattes.cnpq.br/6313698968060384; http://lattes.cnpq.br/3733518574144348The food chain in the food industry has generated more and more information about its processes. Ensuring the integrity and security of this information has been a challenge. The current work aims to understand and evaluate what kind of information is generated in these processes, as well as from the results obtained, implement a solution that can generate identifiers for cheeses and through a local Blockchain network validate this information, as well as from a mobile application it is possible to view this data. For this, it was necessary to understand the structure of Blockchain and its characteristics in relation to information security through a bibliographic search. Important points of traceability have been identified for food production processes. With the results it was possible to model and implement a web system capable of recording data about a cheese and its manufacturer in a local Blockchain network, validating the information provided and made available to its consumers through the QRQuejio (Android) application, in which the cheese was transported. And, using a multi-level query system, check the authenticity of the records by reading the system database and the local Blockchain to confirm the authenticity of the record.Item Controle de emissão e validação de diplomas digitais utilizando Blockchain(2019-01-25) Morais, Anderson Melo de; Mendonça, Sérgio Francisco Tavares de Oliveira; http://lattes.cnpq.br/6313698968060384; http://lattes.cnpq.br/4825772150496499With the development of new technologies, new challenges also arise regarding the security of the many information that is constantly generated. This paper aims to evaluate the feasibility of using Blockchain to guarantee security in the issuance of digital diplomas by Higher Education Institutions and to develop an application to exemplify the process of issuing and validating a digital document. For this, a bibliographical research was carried out to understand the operation of a Blockchain network and the level of security presented by it, also sought to understand how the process of issuing a diploma is given and what security mechanisms traditionally used for data protection. Next, a web system was implemented, using modern development tools, in order to demonstrate the issuance of a digital diploma and the use of a local Blockchain network to register this document. The application also allows the validation of documents issued using a multi-level query system, which verifies that the document is registered in the application database and the local Blockchain, only to confirm its authenticity.