Eleftheria Makri


I am an Information Security professional, specialized in Cryptography, and my career is focused on research and education. I work as a lecturer/researcher at Saxion University of Applied Sciences, the Netherlands, where I am affiliated with the Bachelor programme Security Management (August 2014 - present). As a Saxion lecturer, I integrate theory and practice to disseminate the information security specialist's key professional aspirations. Furthermore, I am a free researcher at COSIC, KU Leuven, Belgium (July 2021 - present). At COSIC, I do research on computing on encrypted data, based on the techniques of Homomorphic Encryption, and Multiparty Computation.

My research interests lie mainly in the field of Applied Cryptography, and Privacy Enhancing Technologies. Specifically, I am interested in technologies and applications of Computing on Encrypted Data (e.g., homomorphic encryption, and multiparty computation). In the future, I would also like to explore usability aspects of security and privacy technologies, as well as user perceptions thereof.

In the past, I have functioned as a junior researcher in the faculty of Electrical Engineering, Mathematics and Computer Science at the University of Twente (2012-2014), where I conducted research in the area of Privacy-Preserving Data Mining in Electronic Health Records.

I obtained my Ph.D. degree in Engineering Science, Electrical Engineering, from COSIC, KU Leuven (2021), with the Thesis entitled "Secure and Efficient Computing on Private Data", under the supervision of Dr. Frederik Vercauteren, and Dr. Bart Preneel. I obtained my M.Sc. in Information & Communication Systems Security from the University of the Aegean, School of Engineering (2011). I completed my Master's Thesis, entitled "Constant Round Group Key Agreement Protocols: A Comparative Study", under the supervision of Dr. Elisavet Konstantinou. I received my B.Sc. in Informatics from the Technological Educational Institute of Athens, School of Technological Applications (2009), with the Thesis entitled "Implementation of an Intrusion Detection Mechanism Specialized on Insider Attacks" (supervision Dr. Ioanna Kantzavelou).


imec-COSIC, KU Leuven

Master's Thesis Co-Supervisor

Bachelor's in Security Management, Saxion University of Applied Sciences



Bachelor's Thesis Supervisor

Bachelor's Thesis Co-Supervisor

Minor Cyber Security, Saxion University of Applied Sciences



Minor De Digitale Revolutie, Saxion University of Applied Sciences


Minor in IT Security, Saxion University of Applied Sciences


Saxion Part-Time School - SPS, Saxion University of Applied Sciences


Bachelor's in Integrated Safety Studies, Saxion University of Applied Sciences


Master's in Computer Science, University of Twente

Teaching Assistant


PhD Thesis

  1. E. Makri. "Secure and Efficient Computing on Private Data". Supervisors: Prof. dr. ir. Bart Preneel; Prof. dr. ir. Frederik Vercauteren. July, 2021.


  1. C. Bonte, E. Makri, A. Ardeshirdavani, J. Simm, Y. Moreau, F. Vercauteren. "Towards Practical Privacy-Preserving Genome-Wide Association Study". In BMC Bioinformatics, 19(1), 1-12, 2018.
  2. E. Makri, J. ten Brinke, R. Evers, P. Man, H. Olthof. "Privacy-Friendly Wi-Fi-Based Occupancy Estimation with Minimal Resources". In International Journal of Ambient Computing and Intelligence (IJACI), 9(4), 34-51, 2018.
  3. E. Makri and E. Konstantinou. "Constant Round Group Key Agreement Protocols: A Comparative Study". In Computers & Security, 30(8), 643-678, 2011.

Conferences and Workshops

  1. E. Makri, D. Rotaru, F. Vercauteren, S. Wagh. "Rabbit: Efficient Comparison for Secure Multi-Party Computation". In International Conference on Financial Cryptography and Data Security, 2021, (to appear).
  2. E. Makri, D. Rotaru, N. P. Smart, F. Vercauteren. "EPIC: Efficient Private Image Classification (or: Learning from the Masters)". In Cryptographers' Track at the RSA Conference, pp. 473-492. Springer, Cham, 2019.
  3. E. Makri, M. H. Everts, S. de Hoogh, A. Peter, H. op den Akker, P. H. Hartel, W. Jonker. "Privacy-Preserving Verification of Clinical Research". In GI Sicherheit 2014, Lecture Notes in Informatics, S. Katzenbeisser, V. Lotz, and E. Weippl (eds.), pp. 481-500, 2014.


  1. E. Makri, T. Wood. "Full-Threshold Actively-Secure Multiparty Arithmetic Circuit Garbling". In IACR Cryptology ePrint Archive, 2019, 1098.
  2. C. Delpech de Saint Guilhem, E. Makri, D. Rotaru, T. Tanguy. "The return of Eratosthenes: Secure Generation of RSA Moduli using Distributed Sieving". In IACR Cryptology ePrint Archive, 2021, 565.

Invited Talks

March 1 - 5, 2021 Financial Cryptography and Data Security 2021, Virtual Conference.
May 25 - June 4, 2020 Theory and Practice of Multiparty Computation - TPMPC 2020, Virtual Workshop.
March 4-8, 2019 RSA Conference 2019 - Cryptographers' Track: Multiparty Computation and Application, San Francisco, USA.
July 15, 2018 PiMLAI Worshop 2018: Privacy in Machine Learning and Artificial Intelligence, Stockholm, Sweden.
January 17, 2018 GMI 2018: Genomics Medicine Ireland, Dublin, Ireland. Industry invited talk on the use of multiparty computation, and homomorphic encryption in genomic analysis.
April 18-22, 2016 University of New Haven, Connecticut, USA: "National Security" and "Criminal Justice" studies. Guest lectures on:
  • Business Continuity
  • Cryptography (1/2)   
  • Cryptography (2/2)  
  • April 14, 2015 Saxion University of Applied Sciences, Enschede, The Netherlands: School of Business, Building & Technology, Minor in Information Management; Security & Privacy Masterclass (guest lecture).
    November 27-28, 2013 ICT.OPEN 2013: The interface for Dutch ICT-Research, Cyber Security track, TU Eindhoven.
    July 24-26, 2013 WEWoRC 2013: Western European Workshop on Research in Cryptology, KIT Karlsruhe.
    June 20-21, 2013 CTIT Symposium 2013: Big Data & the Emergence of Data Science, University of Twente.
    June 4, 2013 CrossFyre Workshop 2013: International Workshop on Cryptography, Robustness, and Provably Secure Schemes for Female Young Researchers, University of Leuven.



    Program Committee Member


    Contact Me

    Address 1: Saxion University of Applied Sciences,
                Spoorstraat 29, 7311 PE Apeldoorn,
                The Netherlands
                Address 2: COSIC; Departement Elektrotechniek - ESAT; KU Leuven
                Kasteelpark Arenberg 10, 3001, Leuven,

    Phone: +31 (0) 620 18 40 11

        E-mail: eleftheria.makri@esat.kuleuven.be

      Public Key: 1EE8 07F9 FDE9 A0EB C000 8ED3 0E31 66C5 41C2 7539