Enhanced IoT Data Security with Robust AES-CBC Encryption Algorithm

In the past decade, the proliferation of Internet of Things (IoT) applications and implementations has exhibited exponential growth, concurrent with advancements in technologies such as machine learning and cloud computing. These technologies facilitate the efficient storage and processing of data for diverse applications. The accelerated expansion is further underscored by the continual evolution of transmission technologies, encompassing both wired perspectives, exemplified by optical fiber communications, and wireless mediums, including Li-Fi and the fifth generation of cellular mobile communication. The swift advancement in this domain necessitates the implementation of robust security techniques to safeguard user privacy. This paper focuses on the deployment of the Advanced Encryption Standard (AES) algorithm in Cipher Block Chaining (CBC) mode, utilizing the C programming language. This approach renders the proposed solution applicable to a wide spectrum of IoT applications. The paper’s primary objective is to ensure data security, whether transmitted via wireless or wired communication techniques. The proposed solution addresses various scenarios, encompassing the full complexity of AES, cost-efficiency considerations, and the time delay inherent in the specified processes. The conducted tests reveal highly promising results, particularly when applied in real-time applications.