Lab

Burkhard Stiller's Lab: Communication Systems Group CSG

About the lab

The Communication Systems Research Group CSG at the Computer Science Department (Institut für Informatik, IFI) of the University of Zurich, UZH, Switzerland was founded in September 2004.

CSG's key mission is to establish excellent research in communications, addressing communication mechanisms for charging, accounting, mobility, security, while considering Telecommunication economics, network management, and highly-decentralized systems as major pillars of today's communications in the Internet. Secondly, the CSG is committed to provide a full and up-to-date teaching curriculum on networks and communications for undergraduate and graduate students, partly in conjunction with other groups at IFI.
More information at: https://www.csg.uzh.ch

Featured projects (1)

Project
Work on Blockchains covers a range of different aspects. Work at the CSG includes the exploitation of various technical, optimization, and application facets, which typically results always in an operational prototype.

Featured research (16)

The cyber insurance market is still in its infancy but growing fast. Novel models and standards for this particular insurance market are essential due to the use of modern IT (Information Technology) and since insurance providers need to create suitable models for customers.
Over the past years, Blockchain (BC) interoperability became a crucial topic of research due to the fast development of new BC platforms for many use-cases, from supply-chain to voting. The need for interoperability can be attributed to the development of such platforms that did not follow any standard, leading to the creation of BC islands that do not exchange data, which hinders innovation. Hence, several BC interoperability solutions were proposed to tackle such problems. One of them is Bifröst, a Notary scheme-based BC interoperability Application Programming Interface (API) that allows the transparent interaction by users or legacy applications with several BCs. An initial prototype of Bifröst was developed, proving its feasibility; however, it did not provide native data encryption or an interaction standard. Thus, this paper presents the design and implementation of an encryption scheme for Bifröst and a JSON format proposal to interact with Bifröst, which also contributes to the state-of-the-art. Evaluations on the encryption scheme show an increase of the data size after the encryption but a constant performance overhead, and discussions on the standard prove that it can be applied to other Notary-based BC interoperability APIs due to its flexibility.
Blockchains (BC) serve as a chain of transactions persisted as backward-linked lists, while being created and maintained within a network of distributed nodes. Potential advances with BCs have reached various application areas beyond FinTech-oriented use cases. Since Internet-of-Things (IoT) based use cases being an important part of them, this chapter focuses specifically on defining and determining measures and criteria to be met proactively for an efficient BC and IoT integration, termed BIoT. This survey resembles further potentials and incentives for such an integration, which leads via suitable use cases to respective challenges. Driven by state-of-the-art BIoT architectures, the new architecture BIIT 1.0 is proposed to pave the path toward practical and efficient BIoT architectures.

Lab head

Burkhard Stiller
Department
  • Department of Informatics IfI
About Burkhard Stiller
  • Blockchains' Sustainability, DDoS Mitigation by Blockchains, Consensus Mechanisms, IoT Security

Members (10)

Bruno Rodrigues
  • University of Zurich
Eder John Scheid
  • University of Zurich
Muriel Figueredo Franco
  • University of Zurich
Cristian Morariu
  • University of Zurich
Radhika Garg
  • University of Zurich
Guilherme Sperb Machado
  • University of Zurich
Christian Killer
  • University of Zurich
Hasan Hasan
  • University of Zurich
Thomas Bocek
Thomas Bocek
  • Not confirmed yet
Danijel Dordevic
Danijel Dordevic
  • Not confirmed yet
Lucas Pelloni
Lucas Pelloni
  • Not confirmed yet
Ile Cepilov
Ile Cepilov
  • Not confirmed yet
Severin Wullschleger
Severin Wullschleger
  • Not confirmed yet
Luc Boillat
Luc Boillat
  • Not confirmed yet
Kürsat Aydinli
Kürsat Aydinli
  • Not confirmed yet
Lenz Baumann
Lenz Baumann
  • Not confirmed yet