With the rapid proliferation of Internet of Things (IoT) devices, massive data transmission and exchange between devices have become increasingly frequent. Data security and identity authentication are critical to ensuring system reliability and privacy protection. Traditional security mechanisms face challenges in IoT scenarios, including limited computational resources, high energy consumption, and significant communication delays. To address these challenges, this paper proposes a lightweight data security transmission and identity authentication mechanism tailored for IoT. This mechanism employs lightweight encryption algorithms and efficient data integrity verification methods to achieve low-power, high-performance data protection. It also introduces a lightweight identity authentication scheme based on symmetric keys and hash chains to ensure reliable device identity verification. Performance analysis and security evaluations demonstrate that the proposed mechanism effectively reduces computational complexity and communication overhead while maintaining data security and authentication reliability, making it suitable for resource-constrained IoT environments. This research provides a feasible lightweight solution for IoT secure transmission and identity authentication, offering reference for designing future efficient and scalable IoT security systems.
Hu et al. (Sun,) studied this question.