Um Modelo de Gestão de Identidades para Cidades Inteligentes Baseado na Tecnologia Blockchain

Abstract

Smart City is a paradigm capable of mitigating the problems caused by urbanization, transforming the city’s environment into something more sustainable. To achieve this, information and communication technologies are used to connect the different actors in the city’s context. The IoT is seen as one of the key technologies for implementing this paradigm, enabling the perception and action over the city space. As in any computer system, information security is fundamental; without security mechanisms, it becomes impossible to develop and deploy smart city applications. Identity management presents itself as a solution to create a secure ecosystem for the development of smart city applications. Identifying the various actors involved in the city, such as municipal administrative entities, IoT devices, service providers, and users, offers means for developing security mechanisms for city services. This dissertation presents a model for decentralized identity management based on blockchain, specifically aimed at the context of smart cities. Additionally, the model was explored to develop a security infrastructure integrated with a middleware platform for smart cities. The Hyperledger Fabric platform was used as the blockchain for implementing the model. The experiments conducted evaluate the computational cost in terms of memory consumption and processing when adopting the proposed model, with the results demonstrating the model’s applicability and measuring the cost of adoption.