Survey on Security Protocols for IoT

The Internet of Things (IoT) represents a network of distinct objects with embedded software for exchanging transient states and data, essential for activating actuators. To interact with a cloud conducting big data analytics and supporting business decisions, edge networking devices and protocols are integral. Key sectors like industrial, agricultural, healthcare, and smart cities heavily rely on IoT, necessitating robust security measures. IoT protocols, functioning on IP protocols, address security across different layers, confronting challenges such as inconsistent manufacturing practices leaving hardware and data vulnerable. It is very significant to ensure data privacy, trust management, authentication and authorization in a heterogeneous environment. Addressing the vulnerabilities at edge and cloud service providers' sites are critical aspects to be addressed, which extensively details security breaches and the protective mechanisms offered by IoT protocols.