Damian Vizár

I am a cryptographer with interest in provably secure symmetric cryptography for real-world applications, experienced with programming, teaching, and management of student projects.

Currently, I am doing a PhD in the LASEC laboratory at EPFL, under the supervision of Prof. Serge Vaudenay. Before coming to EPFL, I did my Bachelor and Master studies at Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava.

Main Interests

I am generally interested in any topic related to cryptography and security. My main research topic so far has been authenticated encryption, and I prefer to work with the rigorous methods of provable security. I have both designed new, efficient and provably secure AE schemes, and also proposed new, advanced notions of AE security. I am further interested in the security of the Internet of Things and the defense against mass surveillance.

Beside the theoretical work, I also like to do programming. I co-authored the reference and supervised the optimized implementations of the CAESAR candidate OMD. In 2014, I was responsible for preparation of a demo that demonstrated relay attacks on contactless payment system based on NFC. I had a lot of fun while playing with the NFC communication protocols and credit card standards and practical discovery of their (in)security

Experience

Doctoral assistant

EPFL, Lausanne, Switzerland

  • Microsoft Research Joint Research Centre collaboration worked as a major contributor in a successful project within the Microsoft Research Joint Research Centre collaboration between Microsoft Research and EPFL
  • Invited speaker at ASK 2016 and CECC 2016
  • Teaching - I was a teaching assistant for various classes. In particular: Cryptography and Security (2014,2015,2016,2017 and Advanced Cryptography (2017), both taught by Prof. Serge Vaudenay. I also served as a replacement lecturer for Cryptography and Security and Advanced Cryptography.
  • Student Supervision - I was responsible for the coordination of 28 successful student projects. I have personally supervised 10 students for research-oriented and implementation-oriented semester projects.
  • Paper reviewing - I did reviews as a program committee member for SAC 2016, CECC 2018, FSE 2019, reviewer for IET Information Security, Computer Science Reviews, Designs, Codes and Cryptography and subreviewer for - Provsec 2015, Eurocrypt 2015, Asiacrypt 2015, Eurocrypt 2016, ACISP 2016, ProveSec 2016, Asiacrypt 2016, Eurocrypt 2017, Financial Crypto 2017, Crypto 2017, Asiacrypt 2017, ESORICS 2018, The Journal of Cryptology, CAESAR competition rounds 2 and 3
  • Linux and LAMP administration - I was responsible for the administration of all the servers at the lab, including a LAMP web server, and the network security.

September 2013 - Present

IT Operator

ING Insurance, Bratislava, Slovakia

  • IT support At ING, my tasks included: Windows OS administration, Active Directory, on-site IT support, remote IT support, installation, deployment and maintenance of hardware.

October 2012 - July 2013

Education

EPFL, Lausanne, Switzerland

PhD Student
I am doing a PhD in Cryptography under the supervision of Prof. Serge Vaudenay,in the Laboratory of Security and Cryptography.
September 2013 - Present

Slovak University of Technology, Bratislava, Slovakia

Bachelor and Master with focus on cryptography and IT security

I obtained a BSc in Applied Informatics, and obtained MSc in Applied Informatics with a focus on Cryptography and System Security, IT Security and risk management, and Biometrics. During my studies, I gained good experience with programming in C, experience with programming in C++ and some experience with Matlab.

September 2008 - June 2013

RUB, Bochum, Germany

Erasmus Exchange

During my exchange, I took courses on Cryptographic Protocols, Efficient Implementation of Cryptography in Software and Number Theory.

March 2012 - August 2012

Publications

  • Cogliani, S., Maimut, S. D., Naccache, D., do Canto, R.P.,Reyhanitabar, R., Vaudenay, S., Vizár, D.: OMD: A Compression Function Mode of Operation for Authenticated Encryption. SAC 2014
  • Reyhanitabar, R., Vaudenay, V., Vizár, D.: Misuse-Resistant Variants of OMD. ProvSec 2014
  • Reyhanitabar, R., Vaudenay, S., Vizár, D.: Boosting OMD for Almost Free Authentication of Associated Data. FSE 2015
  • Vaudenay, S., Vizár, D.: Cryptanalysis of chosen symmetric homomorphic schemes. Studia Scientiarum Mathematicarum Hungarica, vol. 52 (2015)
  • Cogliani, S., Maimut,S. D., Naccache, D., do Canto, R.P., Reyhanitabar, R., Vaudenay, S., Vizár, D.: Offset Merkle-Damgaard (OMD) version 2.0. Second round candidate in the CAESAR competition (Aug 2015)
  • Hoang, V.T., Reyhanitabar, R., Rogaway, P., Vizár, D.: Online Authenticated- Encryption and its Nonce-Reuse Misuse-Resistance. CRYPTO 2015
  • Mennink, B., Reyhanitabar, R., Vizár, D.: Security of Full-State Keyed and Duplex Sponge: Applications to Authenticated Encryption. ASIACRYPT 2015
  • Reyhanitabar, R., Serge V., Vizár. D: Authenticated encryption with variable stretch. ASIACRYPT 2016
  • Vizár. D: The State of the Authenticated Encryption. Tatra Mountains Mathematical Publications 67.1 2016
  • Endignoux, G., Vizár D.: Linking Online Misuse-Resistant Authenticated Encryption and Blockwise Attack Models. IACR Transactions on Symmetric Cryptology(2) 2016,
All publications in Google Scholar or DBLP

Skills

Main Skills

Programming Languages & Tools
  • TEX
Languages

Awards

  • Google PhD Fellowship
  • PhD Fellowship, EPFL
  • Graduated with honours at Faculty of Electrical Engineering and Information Technology, Slovak University of Technology.
  • Dean’s award, awarded with Bachelor Degree for excellent results at Faculty of Electrical Engineering and Information Technology, Slovak University of Technology.
  • Best student of 2010, awarded at Faculty of Electrical Engineering and Information Technology, Slovak University of Technology.