Kristof obtained a PhD in engineering sciences at the KU Leuven with research on cryptographic protection of privacy with anonymous credentials and zero-knowledge proofs. In this context, he won the best paper award at the International Conference on Security and Cryptography (SECRYPT). In 2011, he joined the research department of Smals, an IT service provider for the Belgian public sector.
His current domains are post-quantum cryptography, advanced identifier pseudonymization and fully homomorphic Encryption (FHE). In 2024, he was nominated for the Privacy Professional Award by Belgium’s Cyber Security Coalition.
In 2025 the Blinded Pseudonymization Service he co-developed for Belgium’s eHealth-platform received the runner-up (2nd) Award issued by Cybersec Europe for Best Cybersecurity Innovation Europe.