Publications

• Thetacrypt: A Distributed Service for Threshold Cryptography On-Demand: Demo Abstract
  Orestis Alpos, Mariarosaria Barbaraci, Christian Cachin, Noah Schmid, Michael Senn.
  In Middleware Conference 2023. Also available is the implementation of Thetacrypt.

• Distributed Protocols with Threshold and General Trust Assumptions
  PhD thesis, Orestis Alpos. University of Bern, 2023
  See related blogpost.

• Eating sandwiches: Modular and lightweight elimination of transaction reordering attacks
  O. Alpos, I. Amores-Sesar, C. Cachin, and M. Yeo.
  In International Conference on Principles of Distributed Systems, OPODIS 2023.

• Practical large-scale proof-of-stake asynchronous total-order broadcast
  O. Alpos, C. Cachin, S. H. Kamp, and J. B. Nielsen.
  In Advances in Financial Technology, AFT 2023.

• Do not trust in numbers: Practical distributed cryptography with general trust
  O. Alpos and C. Cachin.
  In Symposium on Stabilization, Safety and Security of Distributed Systems, SSS 2023.
  Best paper award!

• DSKE: Digital signature with key extraction
  O. Alpos, Z. Wang, A. Kavousi, S. Y. Chau, D. Le, and C. Cachin.

• How to Trust Strangers: Composition of Byzantine Quorum Systems
  O. Alpos, C. Cachin, and L. Zanolini.
  In IEEE Symposium on Reliable Distributed Systems, SRDS 2021.
  See related blogpost.

• On the Synchronization Power of Token Smart Contracts
  O. Alpos, C. Cachin, G. A. Marson, and L. Zanolini.
  In IEEE International Conference on Distributed Computing Systems, ICDCS 2021.
  See related blogpost and presentation.

• Consensus Beyond Thresholds: Generalized Byzantine Quorums Made Live
  O. Alpos and C. Cachin.
  In IEEE Symposium on Reliable Distributed Systems, SRDS 2020.
  See related blogpost and presentation.