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39370 | 5.15 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
A tecnologia Blockchain, originária da teoria de Sistemas Distribuídos, tem como principal característica a independência e simultaneidade dos seus componentes, que coordenam ações de forma autônoma sem a presença de um elemento central, composta por encapsulamento de software baseados em sofisticados algoritmos matemáticos que definem as regras do negócio (mecanismos de consenso) e a segurança dos dados. Em contraposto aos sistemas tradicionais de acesso a um elemento central, suscetíveis a falhas, com controle limitado ou inexistente sobre os dados armazenados dos usuários, possibilitam riscos de alterações ou exclusões de dados, sem que se tenha rastreabilidade garantida. A Blockchain tem se destacado em diferentes aplicações como uma proposta para novos modelos de negócios, em contraponto aos sistemas centralizados. Há que se considerarem estudos para que se evoluam cada vez mais questionamentos como: desempenho em elevado volume de dados, segurança, confiabilidade e privacidade dos dados, em especial quando aplicados aos ecossistemas de IoT, em variados dispositivos, muitas vezes sem compatibilidade de padrões que compõem a classe de dispositivos de IoT e ambientes de hiperconectividades, tolerante a interceptações ou alterações de dados, causando danos ou falhas de processamento. A formalização e o reconhecimento dos padrões de hardware e software permitem a obtenção de compatibilidade, menores custos de implantação, transação e economias de escala. Dessa forma, argumentamos que a padronização por normas de segurança caracteriza-se como parte do conjunto de mecanismos de segurança na tecnologia de Blockchain, no qual levamos em conta na elaboração de um modelo de segurança apresentado na tese. Esse é o cenário de desafio que apresentamos para a pesquisa e nossa contribuição será na consolidação da tecnologia que vem a cada dia apresentando novas soluções muito além das criptomoedas, com foco na economia digital e no dia-a-dia das pessoas.
Blockchain technology, originating from the theory of Distributed Systems, has as its main characteristic the independence and simultaneity of its components, which coordinate actions autonomously without the presence of a central element, composed of software encapsulation based on sophisticated mathematical algorithms that define the business rules (consensus mechanism) and data security. In contrast to traditional systems of access to a central element, susceptible to failures, with limited or non-existent control over the users' stored data, they allow risks of changes or deletions of data, without having guaranteed traceability. Blockchain has stood out in different applications as a proposal for new business models, as opposed to centralized systems. It is necessary to consider studies in order to evolve more and more questions such as: performance in high volume of data, security, reliability and data privacy, especially when applied to IoT ecosystems, in various devices, often without compatibility of standards that make up the class of IoT devices and hyperconnectivity environments, tolerant to interceptions or data changes, causing damage or processing failures. Formalization and recognition of hardware and software standards allow for compatibility, lower deployment and transaction costs, and economies of scale. In this way, we argue that the standardization by security norms is characterized as part of the set of security mechanisms in Blockchain technology, which we take into account in the elaboration of a security model presented in the thesis. This is the challenging scenario that we present for the research and our contribution will be in consolidating the technology that comes every day, presenting new solutions far beyond cryptocurrencies, with a focus on the digital economy and people's daily lives.
Blockchain technology, originating from the theory of Distributed Systems, has as its main characteristic the independence and simultaneity of its components, which coordinate actions autonomously without the presence of a central element, composed of software encapsulation based on sophisticated mathematical algorithms that define the business rules (consensus mechanism) and data security. In contrast to traditional systems of access to a central element, susceptible to failures, with limited or non-existent control over the users' stored data, they allow risks of changes or deletions of data, without having guaranteed traceability. Blockchain has stood out in different applications as a proposal for new business models, as opposed to centralized systems. It is necessary to consider studies in order to evolve more and more questions such as: performance in high volume of data, security, reliability and data privacy, especially when applied to IoT ecosystems, in various devices, often without compatibility of standards that make up the class of IoT devices and hyperconnectivity environments, tolerant to interceptions or data changes, causing damage or processing failures. Formalization and recognition of hardware and software standards allow for compatibility, lower deployment and transaction costs, and economies of scale. In this way, we argue that the standardization by security norms is characterized as part of the set of security mechanisms in Blockchain technology, which we take into account in the elaboration of a security model presented in the thesis. This is the challenging scenario that we present for the research and our contribution will be in consolidating the technology that comes every day, presenting new solutions far beyond cryptocurrencies, with a focus on the digital economy and people's daily lives.
Description
Keywords
Blockchain IoT Sistemas distribuídos Segurança Ecossistemas de IoT Distributed systems Security IoT ecosystems