Cryptology and Data Security Research Group
The Cryptology and Data Security Research Group at the Institute of Computer Science of the University of Bern investigates security and privacy in a digital world.
Our research addresses cryptographic protocols, distributed consistency, consensus, and cloud-computing security, with applications to blockchains, distributed ledger technology, cryptocurrencies, and their economics.
Security and privacy are at stake in the information society, threatened by the enormous developments in networks, cloud, and mobile. Information technology has already revolutionized many aspects today’s life. Finding a balance between the practical convenience of being “always online”, current business practices, the changing demands of society, and the privacy and security concerns of individual people represents one of the great open questions of our time.
Cryptography and data security provide techniques to answer this question.
To stay informed about cryptology, blockchain, and data security talks in Bern and to receive occasional news from the Cryptology and Data Security Research Group, please join our events announcement list.
Recent news (see all news)
-
Ph.D. degree for David Lehnherr
David Lehnherr has successfully defended his Ph.D. thesis on 8 December 2025; the thesis is titled “Simplicial Structures for Epistemic Reasoning in Multi-agent Systems”. As the title reveals, this work is truly... -
Scaling privacy-preserving cryptocurrencies with toxic decoys
The research paper Toxic Decoys: A Path to Scaling Privacy-Preserving Cryptocurrencies has been accepted for publication in the Proceedings on Privacy Enhancing Technologies (PoPETs) and will be presented at corresponding symposium, PETS... -
DAG-based asymmetric consensus
The research paper DAG-based Consensus with Asymmetric Trust has been accepted for presentation and publication at the PODC 2025 conference, the 44th ACM Symposium on Principles of Distributed Computing, which is held...