During June 2026, this developer contributed to the gchq/CyberChef repository by implementing a feature that enables AES initialization vectors to be derived directly from input data. Using JavaScript and applying cryptography and testing skills, the work focused on enhancing the flexibility and reliability of AES encryption and decryption workflows. The approach minimized changes to the public API while streamlining IV management, reducing manual configuration errors, and improving the overall developer and user experience. This update supports more robust integration of CyberChef into diverse data pipelines, aligning with business goals to make cryptographic operations more user-friendly and production-ready.