Title: An enhanced model of secured data transmission between IoT and the cloud

Authors: Shatakshi Kokate; Urmila Shrawankar

Addresses: Department of Computer Science and Engineering, G.H. Raisoni College of Engineering, Nagpur, Maharashtra 440016, India ' Department of Computer Science and Engineering, Shri Ramdeobaba College of Engineering and Management, Nagpur, Maharashtra 440013, India

Abstract: The rapid increase in IoT devices has led to a surge in data traffic, making secure and efficient data transmission a critical challenge. The sensitive nature of IoT-generated data necessitates robust security measures to prevent data loss during transmission between IoT devices, the cloud, and end users. Existing solutions face significant drawbacks, including data leakage, compromised security, confidentiality issues, bandwidth constraints, high latency, and vulnerability to single points of failure. These vulnerabilities can be exploited by malicious agents to disrupt IoT networks. Blockchain technology, with its immutable, distributed, transparent, and secure ledger, complements fog computing by strengthening overall security. The proposed MedFogChain model integrates these two technologies to improve security, resource utilisation, scalability, system performance, and reduce transmission overhead and latency. This model proves particularly effective in the healthcare domain, where data sensitivity and the need for rapid, secure data transmission during emergencies are paramount.

Keywords: data transmission; security; internet of things; IoT; fog computing; blockchain; cloud.

DOI: 10.1504/IJESDF.2026.156140

International Journal of Electronic Security and Digital Forensics, 2026 Vol.18 No.5, pp.576 - 593

Received: 21 Sep 2024
Accepted: 31 Oct 2024
Published online: 07 Sep 2026 *

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