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Distributed Attestation Service for IoT
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| 6.27 MB | Adobe PDF |
Autores
Resumo(s)
Internet of Things (IoT) systems are usually composed of a multitude of devices that
may differ greatly in their hardware and software capabilities. Very often, IoT devices are
used in critical applications in which the integrity and confidentiality of the gathered data
need to be ensured.
Due to the large number of devices that compose these systems and their constant
change of state, keeping an up-to-date list of the participating devices at any given time
is a fundamental problem. At the same time, there is also the problem of ensuring joining
devices satisfy the high-level security requirements defined for critical IoT applications.
However, the existent work focuses on tackling one of these issues at a time and no complete solution exists.
Therefore, we aim to design a system capable of providing a reliable source of information about which devices can participate in an application and to which extent these
devices satisfy certain properties to ensure the security requirements are kept. The objective is to significantly increase the trust between interacting IoT devices by regulating
their participation in these applications.
We developed SIRE, a Byzantine fault-tolerant system that supports remote attestation, coordination primitives, membership management and auditable integrity-protected
storage in a single system designed for IoT. Using this solution, we have a system that
possesses the necessary features and is adapted to the dynamism and heterogeneity of IoT
in a secure, efficient and fault-tolerant implementation.
We evaluated SIRE’s performance, both as a coordination service and as a remote
attestation service, demonstrating the scalability and efficiency of the system. The results
obtained were favourable, asserting it as a viable alternative to the existent work with
more features and yet, good performance.
Descrição
Tese de mestrado, Engenharia Informática , 2022, Universidade de Lisboa, Faculdade de Ciências
Palavras-chave
Atestação Remota Coordenação Extensível Tolerância a Faltas Bizantinas Internet das Coisas Teses de mestrado - 2023