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 team of Smals, which provides IT services to Belgian governmental organizations. My CV can be found here.

Every day, I continue my quest for improving privacy with cryptography, which has become even more relevant since the GDPR has come into force. 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 Government)
I am part of the research team at Smals, which provides IT services to Belgian governmental institutions. I stimulate innovation by inventing and applying novel cryptographic concepts, by giving advise and by doing knowledge transfer such as seminars.

Some of my activities are:
  • I am cryptography expert in IT projects and I advise governmental organizations.
  • I'm working on novel, innovative cryptographic concepts.
  • I occasionaly give guest lectures at Belgian universities.
  • I am member of steering groups of ongoing research projects at KU Leuven and the University of Tilburg.
  • I'm an active member of the Belgian Blockchain Coalition, the Beltug Blockchain Task Force and 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, 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 guaranties 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. Occasionaly, there is still collabaration between the University of Leuven and me at Smals. I coached, for instance, during the academic year 2016-2017 a master student on his thesis "Kruisen van persoonsgegevens met maximale bescherming van de privacy (Linking together Personal Identifiable Data with Maximal Protection of the Privacy)".

In 2015 I passed flawlessly the online Coursera course Cryptography I offered by professor Dan Boneh, Stanford University.


Picture by Juhanson