Welcome to my webpage

I am a Professor in the Digital Security (DiS) group. I joined the institute for Computing and Information Sciences (iCIS) at the Radboud University in August 2009. Before that I was PostDoc at KU Leuven Belgium where I also got my PhD in 2005. Before that I worked as a cryptographer for Pijnenburg Securealink (later SafeNet B.V.) in The Netherlands. I got my Professional Doctorate in Engineering from TU Eindhoven in 2001.

I have received a VIDI grant from the Dutch government in 2014 to work on new side-channel analysis methods and countermeasures for secure embedded devices.

Since 2018, I am a senior member of IEEE and an Editorial board member of IEEE Transactions on Information Forensics and Security. I am also an AE for ACM TECS.

I am general co-chair or Real World Crypto Symposium for 2021 (virtual) and 2022 (hopefully physical in Amsterdam) with Joan Daemen and Peter Schwabe.

With Stjepan Picek I am hoping (for the 2nd time) to have EUROCRYPT 2021 in Zagreb as a physical event.

Research topics for theses and internships

My research

My research interests are in applied cryptography and embedded systems security. I am looking into security of embedded (crypto) devices such as smartcards, RFID tags and IoT devices. Some of the topics I worked on include implementations of cryptography, both high performance and low-cost i.e. in constrained environments. I work on implementation attacks i.e. side-channel and faults and I have a preference for curve-based cryptography (both classical and post-quantum i.e. ECC and isogeny-based).

Recently, I've been looking into machine/deep learning for security and privacy and how we can use it for side-channel analysis. Another direction we consider is to perform side-channel analysis on neural nets implementations. I'm also interested in low-cost countermeasures against all kinds of physical attacks, faults and side-channel.

For a complete list of my publications check my DBLP and Google Scholar pages.

Programme Committees

Upcoming events

  • EUROCRYPT 2021, Oct. 17-21, 2021, (fingers crossed :)) Zagreb, Croatia.

PhD students

I am happy to work with some highly motivated PostDocs and PhD students:

Past PhD students and PostDocs


  • Antonio de la Piedra, PostDoc 2015-2016, now with CEA, Grenoble, France
  • Ilya Kizhvatov, PostDoc 2016-2017
  • Vincent Grosso, PostDoc 2016-2017, now with CNRS/Laboratory Hubert Curien, FR
  • Veelasha Moonsamy, PostDoc 2015-2017, now at Ruhr University Bochum
  • Joost Renes, PostDoc in 2019, now with NXP
  • PhD students:

  • Roel Verdult, PhD in 2015
  • Stjepan Picek, PhD in 2015, now assistant professor at TU Delft
  • Baris Ege, PhD in 2016, now with Riscure
  • Anna Krasnova, PhD in 2017, now with Philips
  • Louiza Papachristodoulou, PhD in 2019, now at Fontys, Eindhoven
  • Lukasz Chmielewski, PhD in 2019, now PostDoc at Radboud University
  • Joost Renes, PhD in 2019, PostDoc until Jan. 2020, now with NXP
  • Kostas Papagiannopoulis, PhD in 2020
  • Pedro Maat Massolino, now with PQShield
  • Contact Information

    Office: Room 03.10, Mercator 1 building @ RU campus
    Phone: +31 (024) 365 2076
    Email: lejla(at)cs.ru.nl
    Twitter: @lejla_batina

    Postal Address

    Faculty of Science
    Radboud University
    Postbus 9010
    6500 GL Nijmegen
    The Netherlands

    Visiting Address (How to get there)

    Digital Security Group
    Institute for Computing and Information Sciences (ICIS)
    Mercator 1, Room 03.10
    Toernooiveld 212
    6525 EC Nijmegen
    The Netherlands