University College London
Dept. of Computer Science
Gower Street
London WC1E 6BT
United Kingdom
Email: s.meiser at
Office: MPEB 4.13

I am a PostDoc under George Danezis. Before joining UCL I wrote my doctoral thesis on "Quantitative Anonymity Guarantees for Tor" under Michael Backes.

Research interests: anonymous communication (especially low-latency AC protocols, such as Tor), privacy metrics (especially metrics based on Differential Privacy), cryprography (including Computational Soundness)


Mind the overlap between the categories.

All Anonymity Differential Privacy Cryptography Other

Recent or forthcoming

  • New! Your Choice MATor (s): large-scale quantitative anonymity assessment of Tor path selection algorithms against structural attacks (PETS, Full Version). Michael Backes, Sebastian Meiser, Marcin Slowik. Proceedings on Privacy Enhancing Technologies, 2016 Volume 2 (PETS'16)
  • New! Delegatable functional signatures (Full Version). Michael Backes, Sebastian Meiser, Dominique Schröder. 19th International Conference on the Theory and Practice of Public-Key Cryptography (PKC'16)
  • Secrecy without Perfect Randomness: Cryptography with (Bounded) Weak Sources (ACNSPreliminary Version). Michael Backes, Aniket Kate, Sebastian Meiser, Tim Ruffing. Applied Cryptography and Network Security. Springer International Publishing, 2015. (ACNS'15)
  • (Nothing else) MATor (s): Monitoring the Anonymity of Tor's Path Selection (CCS). Michael Backes, Aniket Kate, Sebastian Meiser, Esfandiar Mohammadi. Proc. of the 21st Conference on Computer and Communications Security (CCS’14)
  • Differentially Private Smart Metering with Battery Recharging (Full Version). Michael Backes, Sebastian Meiser. Data Privacy Management and Autonomous Spontaneous Security. (DPM'14)
  • AnoA: A Framework for Analyzing Anonymous Communication Protocols (CSF, Full Version). Michael Backes, Aniket Kate, Praveen Manoharan, Sebastian Meiser, Esfandiar Mohammadi. Computer Security Foundations Symposium, 2013 IEEE 26th (CSF'13)