Current research on Internet of Things (IoT) security protocols: A survey

The Internet of Things (IoT) has become indispensable for remote monitoring, integrating diverse hardware and software elements to provide seamless, secure, and reliable services. Essential components like network protocols, sensor nodes, actuators, and gateway nodes ensure the functionality and security of these systems. However, the increasing proliferation of IoT devices has raised significant security concerns, particularly regarding user privacy, data integrity, and service availability. This manuscript presents a comprehensive review of existing authenticated key exchange mechanisms for IoT security, focusing on the limitations of current authentication and key agreement methods. We examine relevant schemes for the case study to explore key security challenges. In this regard, we conduct a cryptanalysis of three recently proposed IoT security protocols, evaluating their effectiveness in addressing vulnerabilities. The key contribution of this work lies in offering insights into the latest advancements in IoT security, identifying critical weaknesses, and proposing enhancements to improve the resilience of IoT systems in an increasingly interconnected world.