AES Improvement Algorithm Based on the Chaotic System in IIOT

In the rapidly evolving Industrial Internet of Things (IIoT), security is a key concern. The traditional AES algorithm has limitations on key generation and attack resistance in IIoT's resource-limited and complex environment. This paper presents a new AES algorithm based on chaos for IIoT. The algorithm improves the security of AES encryption by integrating the chaotic system into the key generation process, and it mitigates known attacks by introducing chaos-based S-Box substitution. Through key sensitivity analysis and the results of FIPS 140–2 experiments, it is indicated that the algorithm proposed in this paper exhibits higher security and efficiency compared to the traditional AES algorithm. Our work enhances data security in the IIoT environment and provides a valuable solution for industrial communications and operations.