Christian Weinert

Christian Weinert


  • TW20 0EX

Personal profile

Personal profile

Christian Weinert is a Lecturer (Assistant Professor) in the Information Security Group (ISG) at Royal Holloway, University of London. Before, he was a postdoctoral researcher (2021/09 – 2022/02) and doctoral researcher (2016/09 – 2021/08) in the Cryptography and Privacy Engineering Group (ENCRYPTO) at the Department of Computer Science of TU Darmstadt, Germany.

His research focuses on the design, implementation, and evaluation of privacy-preserving protocols at large scale. During his bachelor and master studies, he worked in the area of secure long-term archiving.


Administrative Responsibilities

  • Chair, PGT School Progression and Awards Board (SPAB)
  • Deputy Chair, PGT Departmental Assessment Board (DAB)


  • IY4500/IY3821 - MSci/BSc Project (Supervisor)
  • IY5500/IY5510 - MSc Project (Supervisor)
  • IY5609/IY4609/IY3609 - Digital Forensics (Module Leader)
  • IY5614 - Advanced Cryptography (Module Leader, from AY24/25)
  • "Crypto Chats" - Advanced Cryptography Seminar (Organizer)
  • CYM090 - Information Privacy (Module Leader)

PC Memberships


PhD Students

Honors and Awards

Work Experience

  • Since 04/2022 Lecturer in Informartion Security at ISG
  • 2021/09 – 2022/02 Postdoctoral Researcher at ENCRYPTO
  • 2016/09 – 2021/08 Doctoral Researcher at ENCRYPTO
  • 2014/04 – 2016/07 Student Research Assistant at CDC
  • 2015/10 – 2016/03 Student Teaching Assistant at GRIS
  • 2010/08 Internship at CAIRO AG


  • 2016-2021 Ph.D. in Computer Science (with distinction), TU Darmstadt, Germany
  • 2013-2016 M.Sc. in Computer Science (with honors); Minor: Business Administration, Economics and Law, TU Darmstadt, Germany
  • 2010-2013 B.Sc. in Computer Science, TU Darmstadt, Germany


CORE A/A* ranked venues marked in bold.


  • Yaniv Ben-Itzhak, Helen Möllering, Benny Pinkas, Thomas Schneider, Ajith Suresh, Oleksandr Tkachenko, Shay Vargaftik, Christian Weinert, Hossein Yalame, Avishay Yanai: ScionFL: Secure Quantized Aggregation for Federated Learning. In 2. IEEE Conference on Secure and Trustworthy Machine Learning (SaTML'24). Toronto, Canada, Apr. 2024. Runner-up Distinguished Paper Award.
  • Hiroki Okada, Rachel Player, Simon Pohmann, Christian Weinert: Towards Practical Doubly-Efficient Private Information Retrieval. In 28. International Conference on Financial Cryptography and Data Security (FC'24). Willemstad, Curaçao, Mar. 2024. CORE Ranking A.





  • Heiko Mantel, Lukas Scheidel, Thomas Schneider, Alexandra Weber, Christian Weinert: RiCaSi: Rigorous Cache Side Channel Mitigation via Selective Circuit Compilation. In 19. International Conference on Cryptology And Network Security (CANS’20). Vienna, Austria, Dec. 2020, pp. 505–525. Acceptance rate 25.4%. CORE ranking B.
  • Amos Treiber, Alejandro Molina, Christian Weinert, Thomas Schneider, Kristian Kersting: CryptoSPN: Expanding PPML beyond Neural Networks. In 1. Privacy Preserving Machine Learning in Practice CCS Workshop (PPMLP@CCS’20). Orlando, Florida, USA, Nov. 2020, pp. 9–14.
  • Amos Treiber, Alejandro Molina, Christian Weinert, Thomas Schneider, Kristian Kersting: CryptoSPN: Privacy-preserving Sum-Product Network Inference. In 24. European Conference on Artificial Intelligence (ECAI’20). Santiago de Compostela, Spain, Aug. 2020, pp. 1946–1953. Acceptance rate 26.8%. CORE ranking A.
  • Rosario Cammarota, Matthias Schunter, Anand Rajan, Fabian Boemer, Ágnes Kiss, Amos Treiber, Christian Weinert, Thomas Schneider, Emmanuel Stapf, Ahmad-Reza Sadeghi, Daniel Demmler, Huili Chen, Siam Umar Hussain, Sadegh Riazi, Farinaz Koushanfar, Saransh Gupta, Tajan Simunic Rosing, Kamalika Chaudhuri, Hamid Nejatollahi, Nikil Dutt, Mohsen Imani, Kim Laine, Anuj Dubey, Aydin Aysu, Fateme Sadat Hosseini, Chengmo Yang, Eric Wallace, Pamela Norton: Trustworthy AI Inference Systems: An Industry Research View. arXiv:2008.04449.
  • Sebastian P. Bayerl, Tommaso Frassetto, Patrick Jauernig, Korbinian Riedhammer, Ahmad-Reza Sadeghi, Thomas Schneider, Emmanuel Stapf, Christian Weinert: Offline Model Guard: Secure and Private ML on Mobile Devices. In 23. Design, Automation and Test in Europe Conference (DATE’20). Grenoble, France, Mar. 2020, pp. 460–465. Acceptance rate 26%. CORE ranking B.


  • Sebastian P. Bayerl, Ferdinand Brasser, Christoph Busch, Tommaso Frassetto, Patrick Jauernig, Jascha Kolberg, Andreas Nautsch, Korbinian Riedhammer, Ahmad-Reza Sadeghi, Thomas Schneider, Emmanuel Stapf, Amos Treiber, Christian Weinert: Privacy-Preserving Speech Processing via STPC and TEEs. In 2. Privacy Preserving Machine Learning CCS Workshop (PPML@CCS’19). London, UK, Nov. 2019. Poster. Acceptance rate 55%.
  • Susanne Felsen, Ágnes Kiss, Thomas Schneider, Christian Weinert: Secure and Private Function Evaluation with Intel SGX. In 10. ACM Cloud Computing Security Workshop (CCSW’19). London, UK, Nov. 2019, pp. 165–181. Acceptance rate 37.5%.
  • Daniel Kales, Christian Rechberger, Thomas Schneider, Matthias Senker, Christian Weinert: Mobile Private Contact Discovery at Scale. In 28. USENIX Security Symposium (USENIX Security’19). Santa Clara, CA, USA, Aug. 2019, pp. 1447–1464. Acceptance rate 16.2%. CORE ranking A*.


  • Ferdinand Brasser, Tommaso Frassetto, Korbinian Riedhammer, Ahmad-Reza Sadeghi, Thomas Schneider, Christian Weinert: VoiceGuard: Secure and Private Speech Processing. In 19. Annual Conference of the International Speech Communication Association (INTERSPEECH’18). Hyderabad, India, Sep. 2018, pp. 1303–1307. Acceptance rate 54.0%. CORE ranking A.
  • Oleksandr Tkachenko, Christian Weinert, Thomas Schneider, Kay Hamacher: Large-Scale Privacy-Preserving Statistical Computations for Distributed Genome-Wide Association Studies. In 13. ACM Asia Conference on Information, Computer and Communications Security (ASIACCS’18). Incheon, Korea, Jun. 2018, pp. 221–235. Acceptance rate 16.8%. CORE ranking A.
  • M. Sadegh Riazi, Christian Weinert, Oleksandr Tkachenko, Ebrahim M. Songhori, Thomas Schneider, Farinaz Koushanfar: Chameleon: A Hybrid Secure Computation Framework for Machine Learning Applications. In 13. ACM Asia Conference on Information, Computer and Communications Security (ASIACCS’18). Incheon, Korea, Jun. 2018, pp. 707–721. Acceptance rate 16.8%. CORE ranking A.
  • Benny Pinkas, Thomas Schneider, Christian Weinert, Udi Wieder: Efficient Circuit-based PSI via Cuckoo Hashing. In EUROCRYPT 2018 – The 37th Annual International Conference on the Theory and Applications of Cryptographic Techniques. Tel Aviv, Israel, Apr. 2018, pp. 125–157. Acceptance rate 23.0%. CORE ranking A*.


  • Stefan Krüger, Sarah Nadi, Michael Reif, Karim Ali, Mira Mezini, Eric Bodden, Florian Göpfert, Felix Günther, Christian Weinert, Daniel Demmler, Ram Kamath: CogniCrypt: Supporting Developers in using Cryptography. In 32. IEEE/ACM International Conference on Automated Software Engineering (ASE’17). Urbana- Champaign, IL, USA, Nov. 2017, pp. 931–936. Acceptance rate (tool demonstration track) 62.5%. CORE ranking A*.
  • Christian Weinert, Denise Demirel, Martín Vigil, Matthias Geihs, Johannes Buchmann: MoPS: A Modular Protection Scheme for Long-Term Storage. In 12. ACM Asia Conference on Information, Computer and Communications Security (ASIACCS’17). Abu Dhabi, UAE, Apr. 2017, pp. 436–448. Acceptance rate 19.8%. CORE ranking A.


  • Christian Weinert. Building a Modular Long-term Archiving System. Master's thesis, TU Darmstadt, Germany, July 25, 2016.



  • Martín Vigil, Christian Weinert, Denise Demirel, Johannes Buchmann: An Efficient Time-Stamping Solution for Long-Term Digital Archiving. In 33. IEEE International Performance Computing and Communications Conference (IPCCC’14). Austin, TX, USA, Dec. 2014, pp. 1–8. Acceptance rate 31.7%. CORE ranking B.
  • Martín Vigil, Christian Weinert, Kjell Braden, Denise Demirel, Johannes Buchmann: A Performance Analysis of Long-Term Archiving Techniques. In 16. IEEE International Conference on High Performace Computing and Communications (HPCC’14). Paris, France, Aug. 2014, pp. 878–889. Acceptance rate 25.0%. CORE ranking B.


  • Christian Weinert. Content Integrity System and Notarisation for Long-term Protection of Data Objects. Bachelor's thesis, TU Darmstadt, Germany, October 18, 2013.