Algorithms Code, Table Row Data with figures

Description: This dataset contains the source code, raw numerical data (CSV/XLSX), simulation outputs, and supporting files used in the manuscript entitled "Designing of an Efficient Lightweight Key Expansion Algorithm for Battery Scarce IoT Devices." The dataset includes the underlying data used to generate Tables and Figures 1–10, enabling verification and reproduction of the study's results in accordance with the journal's data-sharing policy.