Research profile
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. The current focus of our group is on
- Blockchains, consensus and peer-to-peer networks
- Network Security Monitoring
- Secure and privacy-aware computing in partially trustworthy environments.
We have has also contributed research for many years in the fields of mobility (connected vehicles, "Car-to-X Communication"), decentral energy systems, and federative identity managment.
Our group designs and analyses techniques with the particular focus on security, performance, and deployability:
- Security: explicit modelling of trust and "tunable security"
- Performance: performance evaluation through discrete event modelling and simulation (esp. parallel simulation)
- Deployability: deployability is part of the requirement and evaluation
| Title | Author | Source |
|---|---|---|
| TEE-Based Distributed Watchtowers for Fraud Protection in the Lightning Network | Leinweber, Marc; Grundmann, Matthias; Schönborn, Leonard; Hartenstein, Hannes |
3rd International Workshop on Cryptocurrencies and Blockchain Technology (CBT'19) |
| Fundamental Properties of the Layer Below a Payment Channel Network | 4th International Workshop on Cryptocurrencies and Blockchain Technology (CBT'20) |
|
| Attacks on Dynamic Protocol Detection of Open Source Network Security Monitoring Tools | Grashöfer, Jan; Titze, Christian; Hartenstein, Hannes |
Conference on Communications and Network Security (CNS 2020), Avignon, Frankreich |
| Short Paper: An Empirical Analysis of Blockchain Forks in Bitcoin | Financial Cryptography and Data Security 2019, St. Kitts, Februrary 2019 |
|
| Banklaves: Concept for a Trustworthy Decentralized Payment Service for Bitcoin | IEEE International Conference on Blockchain and Cryptocurrency (ICBC 2019), 2019, Seoul, South Korea |
|
| Access Control for Binary Integrity Protection using Ethereum | Stengele, Oliver; Baumeister, Andreas; Birnstill, Pascal; Hartenstein, Hannes |
Proceedings of the 24th ACM Symposium on Access Control Models and Technologies (SACMAT '19), Toronto, Canada |
| Matrix Decomposition: Analysis of an Access Control Approach on Transaction-based DAGs without Finality | Jacob, Florian; Becker, Luca; Grashöfer, Jan; Hartenstein, Hannes |
SACMAT '20: Proceedings of the 25th ACM Symposium on Access Control Models and Technologies, Barcelona Spain, June, 2020. Ed.: J. Lobo |
Research areas
Security and Anonymity of Blockchain Networks
- Monitoring and experiments in the Bitcoin p2p network: dsn.tm.kit.edu/bitcoin
- Development of simulation models for simulation of the Bitcoin p2p network
- Evaluation of security and performance
Crypto Currencies and Consensus
- Global consensus
- Payment channels and other off-chain techniques
- Game theoretic constructions for security
Modelling of Decentralized Trust
- Trusted execution environments
- Identity and key management
- Privacy and data protection
Network Security Monitoring
- Deployability
- Evaluation of performance
- Threat intelligence management
Simulation and Methods for Simulation
- Development of complex models for simulation
- Analysis of models for simulation
- Simulation methods and optimization
Funded Research Projects
As a research group, we are and were involved in several projects on research, standardisation, and integration. Listed below is an overview of current and finished projects that we are or were a part of.