Blockchain-Based Decentralized Identification in IoT: An Overview of Existing Frameworks and Their Limitations

The popularity of the Internet Things (IoT) and Industrial IoT (IIoT) has caused a rapid increase in connected entities exposed its lack adequate Identity Management (IdM). Traditional IdM systems are highly dependent on central authorities; any failure can potentially compromise entire system. To eliminate drawback authorities evolve to meet increasingly stringent security requirements, Decentralized Identification approach been proposed. This often relies blockchain technology provide secure tamper-proof method managing verifying identities. Therefore, this article investigates capabilities blockchain-based decentralized identification for domain, with an emphasis heterogeneity online devices. It describes number features specifications specific focus Self-Sovereign (SSI), model which own their concludes discussion technical aspects as well potential obstacles constraints implementation context Things.