In April 2025, contributed an enhancement to the AES MixColumns module within the Matziaz/TE2002B repository, focusing on both performance and maintainability. The work involved optimizing Galois Field multiplication and addition operations in VHDL, introducing explicit logic for 2- and 3-multiplier cases to strengthen cryptographic correctness. Alongside these technical improvements, the codebase was refactored for greater readability, with updated formatting and comprehensive comments to support future development and code review. This update consolidated related changes under a single feature, improving traceability and documentation, and included minor fixes within the feature commits, though no major bugs were addressed.