Daniel focused on protocol correctness and binary analysis across multiple open-source libraries, including ntop/nDPI, qarmin/rustls, and Vector35/binaryninja-api. He addressed subtle bugs in TLS/JA4 handling by correcting SSLv2 version constants and JA4 mapping logic, ensuring accurate protocol identification and reducing false positives in downstream analytics. In binaryninja-api, Daniel improved the stability of the SharedCacheView header parsing by implementing mappingOffset-based bounds checks, preventing out-of-bounds reads and enhancing resilience against malformed inputs. His work leveraged C, C++, and Rust, demonstrating depth in low-level programming, cryptography, and reverse engineering to deliver more robust and reliable tooling.