Securing IoT Devices Using Permissioned Blockchain Networks: A Cybersecurity Framework Against External Threats

Abstract

The proliferation of Internet of Things (IoT) devices has revolutionized various sectors, from smart homes to industrial automation. However, the increased connectivity has also exposed these devices to a myriad of cybersecurity threats. Traditional security measures are often inadequate in protecting the vast and heterogeneous IoT ecosystems. This paper proposes a cybersecurity framework that leverages permissioned blockchain networks to enhance the security of IoT devices. The framework addresses key challenges such as data integrity, authentication, and access control. We present a detailed architecture, supported by algorithms and case studies, to demonstrate the effectiveness of the proposed solution. The paper also includes a comprehensive evaluation of the framework's performance and security features, highlighting its potential to mitigate external threats in IoT environments