Welcome to the webpage of the System Security research group

Our research focuses on system security, network security, and applied cryptography. Our know-how made major cont­ri­bu­ti­ons to the dis­co­very of critical se­cu­ri­ty flaws like DROWN, ROBOT, and Efail. We sys­te­ma­ti­cal­ly ana­ly­ze these vul­nerabi­li­ties and de­ve­lop tes­ting tools to iden­ti­fy and fix them. One example is a tool for flexible analyses of TLS libraries: TLS-Attacker.




As a part of the "Frühlings-Uni", Juraj has held a presentation on the importance of IT security and presented CTFs.

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Do you use S/MIME or OpenPGP to secure your emails? Do you think that validating e-mail signatures is easy? If your answer is yes, you should take a look at our study published together with our colleagues from Karlsruhe Institute of Technology, Münster University of Applied Sciences, and Ruhr University Bochum.

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Together with our colleagues from the Ruhr University Bochum, we have published our paper on combinatorial testing of TLS implementations. The paper is presented at USENIX Security in Boston this week.

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Further information:

Our blog contains current topics from theses and information that we gathered during our research.