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The widespread use of Internet of Things (IoT) devices and the emergence of 5G have presented intricate security applications especially in identity and access management (IAM). As billions of delicate IoT endpoints are built to interconnect with fives, the usual IAM pattern would challenge to tackle troubles like onboarding devices, supplying identities, controlling accesses, and safe and sound lifecycle management, particularly in a decentralized, dynamic, resource-limited scene. The present paper examines the special issues in IAM to IoT in 5G that revolve around scalability, device diversity, edge computing and access control based on zero-trusts. We examine the state-of-the-art solutions in the literature including advanced 5G-AKA protocols, attribute-based access control (ABAC), blockchain-based decentralized identity (DID) and federated identity management systems. In addition, we suggest an integrated IAM that will pool together edge-based identity agents, long-range provisioning with ESIM/ISIM, and context-aware policy enforcement, to enable secure and scalable IoT implementations in 5G systems. The paper ended with the discussion of emerging trends and future research routes, such as lightweight cryptographic approaches and possibility of convergence between IAM and AI to create an adaptive set of trust models.
Oluwatosin Oladayo ARAMIDE (Tue,) studied this question.