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.
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Recent news (see all news)
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Workshop on Secure Systems
The Cryptology and Data Security Research Group organizes a workshop on the theme of secure systems : University of Bern 16 February 2026 Hauptgebäude, Hochschulstrasse 4, Room 033 Schedule 9:30 Christian... -
New results on asymmetric trust
The asymmetric trust model lets each participant in a distributed system make its own trust assumptions about others, captured by an asymmetric quorum system. This contrasts with ordinary, symmetric quorum systems and... -
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...