Worked on the openssl/openssl repository to enhance the AES cryptographic path by refactoring its implementation in C. Focused on algorithm optimization, the developer replaced a 40-bit AND operation with a 32-bit AND, which improved both performance and correctness in cryptographic computations. This change addressed a specific issue in the AES code, reducing potential correctness risks and increasing throughput. The work included code cleanup to improve maintainability and reduce technical debt. Collaboration with multiple maintainers ensured thorough cross-team review and validation, resulting in a robust and reliable update to the cryptographic path. Skills applied included C programming and cryptography.