Abstract :

In the dynamic landscape of Cloud-based Internet of Things (IoT) management, where data streams in from diverse global devices, ensuring robust access control becomes paramount, particularly when entrusting data to potentially untrusted cloud servers. Attribute-based encryption (ABE) emerges as a powerful tool for access control, yet its integration into IoT environments reveals challenges. Our proposed scheme tackles these challenges head-on by first mitigating the impact of complex access control policies on storage resources. Subsequently, we strategically offload computationally intensive operations to cloud servers, alleviating the burden on resource-limited IoT devices. Crucially, the scheme incorporates stringent measures to prohibit unauthorized data access through illegal key-sharing. Our comprehensive security analysis and experimental validations underscore the efficacy and feasibility of the proposed solution in enhancing the security posture of cloud-based IoT data managem