During May 2025, this developer integrated the Blake2s cryptographic hash function into the SpaceTeam/STS1_COBC_SW repository, focusing on enhancing security for embedded systems. Leveraging C++ and the Arduino Cryptography Library, the work enabled fast and secure hashing to support data integrity and authentication within security-sensitive workflows. The integration was completed without introducing regressions, maintaining the stability of the existing codebase. By adding this feature, the project is now better positioned for future security enhancements and compliance requirements. The developer’s efforts centered on cryptography and embedded systems, delivering a targeted solution that strengthens the project’s resilience against data integrity threats.