Decentralized Systems and Network Services Research Group

Under the term "Decentralized Systems and Network Services" we understand distributed and networked technical systems that span over more than one administrative domain. Hence, their operation depends on more than one party. Our research focuses on:

  • Blockchains, broadcast and consensus algorithms and smart contracts
  • P2P-networks and network monitoring
  • Decentralized messaging at the example of Matrix
  • Identity Management and Access Control Systems
  • Secure and privacy-aware computing in partially trustworthy environments.


News | News Archive

30.12.2021: Publication "ETHTID: Deployable Threshold Information Disclosure on Ethereum"

At the 3rd IEEE International Conference on Blockchain Computing and Applications (BCCA 2021) in November, Oliver Stengele presented the paper "ETHTID: Deployable Threshold Information Disclosure on Ethereum", which is now available in IEEE Xplore. The paper is the result of a cooperation with the Cryptography and Security Group of Prof. Müller-Quade and was available as a preprint since June. In this work, we show that independently generated statements can be published to a blockchain in a temporally coordinated way through a decentralized mechanism.

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2021/11/25: Research Project Software-Defined Car

The research group Decentralized Systems and Network Services contributes to the research project Software-Defined Car (SofDCar). For more information on the project see the corresponding press release.

Screen of Presentation at TLA+ Conference 2021Screenshot
30.09.2021: Presentation at TLA+ Conference 2021

At the TLA+ Conference 2021, Matthias Grundmann presented a specification of payment channels in TLA+ and how this specification can be used to specify security properties for payment channels and verify them.

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29.09.2021: Presentation at BRAINS'21

At the 3rd Conference on Blockchain Research & Applications for Innovative Networks and Services, Oliver Stengele (Research Group DSN) and Sebastian Friebe (Research Group Telematics) presented a Case Study on coupling Smart Contract applications which resulted from a cooperation within KASTEL.