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@Inproceedings { 2022-serror-ccs-inside,
   title = {Poster: INSIDE - Enhancing Network Intrusion Detection in Power Grids with Automated Facility Monitoring},
   year = {2022},
   month = {11},
   day = {7},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2022/2022-serror-ccs-inside.pdf},
   publisher = {ACM},
   howpublished = {online},
   booktitle = {Proceedings of the 2022 ACM SIGSAC Conference on Computer and Communications Security},
   event_place = {Los Angeles, CA, USA},
   event_date = {November 8, 2022},
   DOI = {10.1145/3548606.3563500},
   reviewed = {1},
   author = {Serror, Martin and Bader, Lennart and Henze, Martin and Schwarze, Arne and N{\"u}rnberger, Kai}
}

@Inproceedings { 2022_wagner_ccchain,
   title = {Scalable and Privacy-Focused Company-Centric Supply Chain Management},
   year = {2022},
   month = {5},
   day = {4},
   abstract = {Blockchain technology promises to overcome trust and privacy concerns inherent to centralized information sharing. However, current decentralized supply chain management systems do either not meet privacy and scalability requirements or require a trustworthy consortium, which is challenging for increasingly dynamic supply chains with constantly changing participants. In this paper, we propose CCChain, a scalable and privacy-aware supply chain management system that stores all information locally to give companies complete sovereignty over who accesses their data. Still, tamper protection of all data through a permissionless blockchain enables on-demand tracking and tracing of products as well as reliable information sharing while affording the detection of data inconsistencies. Our evaluation confirms that CCChain offers superior scalability in comparison to alternatives while also enabling near real-time tracking and tracing for many, less complex products.},
   keywords = {supply chain management; blockchain; permissionless; deployment; tracing and tracking; privacy},
   tags = {internet-of-production},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2022/2022-wagner-ccchain.pdf},
   publisher = {IEEE},
   booktitle = {Proceedings of the 2022 IEEE International Conference on Blockchain and Cryptocurrency (ICBC '22), May 2-5, 2022, Shanghai, China},
   event_place = {Shanghai, China},
   event_date = {May 2-5, 2022},
   ISBN = {978-1-6654-9538-7/22},
   DOI = {10.1109/ICBC54727.2022.9805503},
   reviewed = {1},
   author = {Wagner, Eric and Matzutt, Roman and Pennekamp, Jan and Bader, Lennart and Bajelidze, Irakli and Wehrle, Klaus and Henze, Martin}
}

@Article { 2021_bader_privaccichain,
   title = {Blockchain-Based Privacy Preservation for Supply Chains Supporting Lightweight Multi-Hop Information Accountability},
   journal = {Information Processing \& Management},
   year = {2021},
   month = {5},
   day = {1},
   volume = {58},
   number = {3},
   abstract = {The benefits of information sharing along supply chains are well known for improving productivity and reducing costs. However, with the shift towards more dynamic and flexible supply chains, privacy concerns severely challenge the required information retrieval. A lack of trust between the different involved stakeholders inhibits advanced, multi-hop information flows, as valuable information for tracking and tracing products and parts is either unavailable or only retained locally. Our extensive literature review of previous approaches shows that these needs for cross-company information retrieval are widely acknowledged, but related work currently only addresses them insufficiently. To overcome these concerns, we present PrivAccIChain, a secure, privacy-preserving architecture for improving the multi-hop information retrieval with stakeholder accountability along supply chains. To address use case-specific needs, we particularly introduce an adaptable configuration of transparency and data privacy within our design. Hence, we enable the benefits of information sharing as well as multi-hop tracking and tracing even in supply chains that include mutually distrusting stakeholders. We evaluate the performance of PrivAccIChain and demonstrate its real-world feasibility based on the information of a purchasable automobile, the e.GO Life. We further conduct an in-depth security analysis and propose tunable mitigations against common attacks. As such, we attest PrivAccIChain's practicability for information management even in complex supply chains with flexible and dynamic business relationships.},
   keywords = {multi-hop collaboration; tracking and tracing; Internet of Production; e.GO; attribute-based encryption},
   tags = {internet-of-production},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2021/2021-bader-ipm-privaccichain.pdf},
   publisher = {Elsevier},
   ISSN = {0306-4573},
   DOI = {10.1016/j.ipm.2021.102529},
   reviewed = {1},
   author = {Bader, Lennart and Pennekamp, Jan and Matzutt, Roman and Hedderich, David and Kowalski, Markus and Lücken, Volker and Wehrle, Klaus}
}

@Inproceedings { 2020-henze-ccs-cybersecurity,
   title = {Poster: Cybersecurity Research and Training for Power Distribution Grids -- A Blueprint},
   year = {2020},
   month = {11},
   day = {9},
   abstract = {Mitigating cybersecurity threats in power distribution grids requires a testbed for cybersecurity, e.g., to evaluate the (physical) impact of cyberattacks, generate datasets, test and validate security approaches, as well as train technical personnel. In this paper, we present a blueprint for such a testbed that relies on network emulation and power flow computation to couple real network applications with a simulated power grid. We discuss the benefits of our approach alongside preliminary results and various use cases for cybersecurity research and training for power distribution grids.},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2020/2020-henze-ccs-cybersecurity.pdf},
   publisher = {ACM},
   address = {New York, NY, USA},
   booktitle = {Proceedings of the 2020 ACM SIGSAC Conference on Computer and Communications Security (CCS ’20), November 9–13, 2020, Virtual Event, USA.},
   event_place = {Virtual Event, USA},
   event_date = {November 9-13, 2020},
   DOI = {10.1145/3372297.3420016},
   reviewed = {1},
   author = {Henze, Martin and Bader, Lennart and Filter, Julian and Lamberts, Olav and Ofner, Simon and van der Velde, Dennis}
}

@Inproceedings { 2020_pennekamp_supply_chain_accountability,
   title = {Private Multi-Hop Accountability for Supply Chains},
   year = {2020},
   month = {6},
   day = {7},
   abstract = {Today's supply chains are becoming increasingly flexible in nature. While adaptability is vastly increased, these more dynamic associations necessitate more extensive data sharing among different stakeholders while simultaneously overturning previously established levels of trust. Hence, manufacturers' demand to track goods and to investigate root causes of issues across their supply chains becomes more challenging to satisfy within these now untrusted environments. Complementarily, suppliers need to keep any data irrelevant to such routine checks secret to remain competitive. To bridge the needs of contractors and suppliers in increasingly flexible supply chains, we thus propose to establish a privacy-preserving and distributed multi-hop accountability log among the involved stakeholders based on Attribute-based Encryption and backed by a blockchain. Our large-scale feasibility study is motivated by a real-world manufacturing process, i.e., a fine blanking line, and reveals only modest costs for multi-hop tracing and tracking of goods.},
   keywords = {supply chain; multi-hop tracking and tracing; blockchain; attribute-based encryption; Internet of Production},
   tags = {internet-of-production},
   url = {https://comsys.rwth-aachen.de/fileadmin/papers/2020/2020-pennekamp-supply-chain-privacy.pdf},
   publisher = {IEEE},
   booktitle = {Proceedings of the 2020 IEEE International Conference on Communications Workshops (ICC Workshops '20), 1st Workshop on Blockchain for IoT and Cyber-Physical Systems (BIoTCPS '20), June 7-11, 2020, Dublin, Ireland},
   event_place = {Dublin, Ireland},
   event_date = {June 7-11, 2020},
   ISBN = {978-1-7281-7440-2},
   ISSN = {2474-9133},
   DOI = {10.1109/ICCWorkshops49005.2020.9145100},
   reviewed = {1},
   author = {Pennekamp, Jan and Bader, Lennart and Matzutt, Roman and Niemietz, Philipp and Trauth, Daniel and Henze, Martin and Bergs, Thomas and Wehrle, Klaus}
}

@Inproceedings { 2018-bader-ethereum-car-insurance,
   title = {Smart Contract-based Car Insurance Policies},
   year = {2018},
   month = {12},
   day = {9},
   tags = {mynedata,iop},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2018/2018-bader-ethereum-car-insurance.pdf},
   web_url = {https://ieeexplore.ieee.org/document/8644136},
   publisher = {IEEE},
   booktitle = {2018 IEEE Globecom Workshops (GC Wkshps)},
   event_place = {Abu Dhabi, United Arab Emirates},
   event_name = {1st International Workshop on Blockchain in IoT, co-located with IEEE Globecom 2018},
   event_date = {2018-12-09},
   DOI = {10.1109/GLOCOMW.2018.8644136},
   reviewed = {1},
   author = {Bader, Lennart and B{\"u}rger, Jens Christoph and Matzutt, Roman and Wehrle, Klaus}
}