I obtained my doctoral degree (PhD) of engineering at the University of Leuven, Belgium. My research focused on improving the privacy of the citizen with cryptography. I'm currently working at the research & innovation team at Smals. This company provides IT services to the Belgian public sector. My CV can be found here.

Every day, I continue my quest for improving privacy and security with cryptography. Stricter privacy regulation, increasingly sophisticated cyber threats as well as steady process in quantum computing confirm the necessity of my work.

My work can be divided into four categories:

  • Innovate
    by devising advanced & creative solutions
  • Review

    proposals on their privacy, sec­urity, scalability, ...

  • Share

    knowledge & insights in articles, seminars, ...

  • Advise

    Bespoke consultancy for companies

Smals - Belgian public sector
I am part of the research & innovation team at Smals, This company provides IT services to the Belgian public sector. I foster innovation by pioneering and implementing new cryptographic concepts, offering guidance, and facilitating knowledge transfer through avenues like seminars.

Some of my activities are:
  • Cryptography expert in IT projects
  • Advisor of public bodies
  • Contributor to cryptographic policies and procedures.
  • Inventor of novel, innovative cryptographic concepts.
  • Participating in academic research projects at the VUB, KU Leuven and the University of Utrecht.
  • Jury member of PhD at the Department of Computer Science of the KU Leuven.
  • Member of the European Blockchain Services Infrastructure (EBSI) working group of the European Commission.
University of Leuven
Picture published under creative commons by Juhanson. Title: Castle Arenberg, part of the Katholieke Universiteit Leuven, Belgium.
I obtained my master's degree and PhD at the University of Leuven, which has been founded in 1425. According to Times Higher Education, it is a world top-50 university. According to Reuters, it is the 7th most innovative university worldwide and the most innovative one in Europe, making it the most innovative university outside the U.S. At this university, the AES encryption standard was born, the WPA2 WiFi security standard was killed and Intel's SGX secure enclave was given the Foreshadow uppercut.

In 2004 I obtained a Master in Informatics (with distinction) with a thesis entitled: "Group and Ring Signatures", which are two related cryptographic primitives to create digital signatures in the name of a group.

In 2009, I was awarded, as PhD student, the Best Paper Award at SECRYPT, the international conference on security and cryptography for my paper: Service and Timeframe Dependent Unlinkable One-Time Pseudonyms.

In 2011, I obtained my PhD of Engineering with a dissertation entitled: “Improving privacy in applications by managing the disclosure of personal properties”. The aim was to develop and facilitate the development of applications whereby the certified personal user data that are being disclosed to the service provider are minimized, while the latter still has sufficient information and guarantees to offer its services. Today, this is called self-sovereign identity. One of the key cryptographic tools in my research were attribute-based credentials, as well as the underlying zero-knowledge proofs.

The list of my academic publications can be found here.

During my time at the university, I have been teaching various courses for various student groups and I have been coaching theses of several master students, of which two obtained later a PhD as well.

Until today, I maintain a close - formal and informal - collaboration with the University of Leuven and, more recently, also with the Free University of Brussels.

Picture by Juhanson
Post graduate
In order to develop personally and professionally, I regularly follow courses, either in the field of crptography, or in the field of law.