I am a researcher and PhD student at IAIK, Graz University of Technology. My main research interests are in the field of public key cryptography with a focus on post-quantum signature schemes and modern public key cryptography.

Publications and Talks


2017 Melissa Chase, David Derler, Steven Goldfeder Claudio Orlandi, Sebastian Ramacher, Christian Rechberger, Daniel Slamanig, Greg Zaverucha. Post-Quantum Zero-Knowledge and Signatures from Symmetric-Key Primitives. CCS 2017 (accepted)
2017 David Derler, Sebastian Ramacher, Daniel Slamanig. Homomorphic Proxy Re-Authenticators and Applications to Verifiable Multi-User Data Aggregation. FC 2017 (to appear).


2015 Alfred Geroldinger, Sebastian Ramacher, Andreas Reinhart. On v-Marot Mori rings and C-rings. Journal of the Korean Mathematical Society Vol. 52 No. 1/2015


2017 Post-Quantum Zero-Knowledge and Signatures from Symmetric-Key Primitives at CryptoSymposium 2017 on March 28, 2017.


I am currently involved with the following courses:

Potential topics for student projects, bachelor’s and master’s thesis can be found here: