Publications

2022

  • [PDF] [DOI] A. Unterweger, F. Knirsch, D. Engel, D. Musikhina, A. Alyousef, and H. de Meer, “An analysis of privacy preservation in electric vehicle charging,” Energy Informatics, vol. 5, pp. 1-27, 2022.
    [Bibtex]
    @article{Unterweger22a,
    author = {Andreas Unterweger and Fabian Knirsch and Dominik Engel and Daria Musikhina and Ammar Alyousef and Hermann de Meer},
    doi = {https://doi.org/10.1186/s42162-022-00190-y},
    issue = {3},
    journal = {Energy Informatics},
    month = {4},
    pages = {1-27},
    publisher = {SpringerOpen},
    title = {An analysis of privacy preservation in electric vehicle charging},
    volume = {5},
    url = {https://energyinformatics.springeropen.com/articles/10.1186/s42162-022-00190-y},
    year = {2022},
    pdf = {https://energyinformatics.springeropen.com/track/pdf/10.1186/s42162-022-00190-y.pdf},
    }

2021

  • [PDF] A. Unterweger, F. Knirsch, C. Brunner, and D. Engel, “Low-risk Privacy-Preserving Electric Vehicle Charging with Payments,” in Workshop on Automotive and Autonomous Vehicle Security (AutoSec), Online, 2021, p. 1–6.
    [Bibtex]
    @inproceedings{Unterweger21a,
    address = {Online},
    author = {Unterweger, Andreas and Knirsch, Fabian and Brunner, Clemens and Engel, Dominik},
    booktitle = {Workshop on Automotive and Autonomous Vehicle Security (AutoSec)},
    pages = {1--6},
    publisher = {The Internet Society},
    title = {Low-risk Privacy-Preserving Electric Vehicle Charging with Payments},
    year = {2021},
    pdf = {https://www.en-trust.at/papers/Unterweger21a.pdf},
    }

2020

  • [PDF] [DOI] F. Knirsch, C. Brunner, A. Unterweger, and D. Engel, “Decentralized and Permission-less Green Energy Certificates with GECKO,” Energy Informatics, vol. 3, iss. 2, p. 1–17, 2020.
    [Bibtex]
    @article{Knirsch20b,
    author = {Knirsch, Fabian and Brunner, Clemens and Unterweger, Andreas and Engel, Dominik},
    journal = {Energy Informatics},
    number = {2},
    pages = {1--17},
    publisher = {Springer International Publishing},
    title = {{Decentralized and Permission-less Green Energy Certificates with GECKO}},
    url = {https://doi.org/10.1186/s42162-020-0104-0},
    doi = {10.1186/s42162-020-0104-0},
    pdf = {https://www.en-trust.at/papers/Knirsch20b.pdf},
    volume = {3},
    year = {2020}
    }
  • [PDF] C. Brunner, U. Gallersdörfer, F. Knirsch, F. Matthes, and D. Engel, “DID and VC: Untangling Decentralized Identifiers and Verifiable Credentials for the Web of Trust,” in Proceedings of the 3rd International Conference on Blockchain Technology and Applications (ICBTA 2020), Xi’an, China, 2020.
    [Bibtex]
    @inproceedings{Brunner20c,
    address = {Xi'an, China},
    author = {Brunner, Clemens and Gallersd\"{o}rfer, Ulrich and Knirsch, Fabian and Matthes, Florian and Engel, Dominik},
    booktitle = {Proceedings of the 3rd International Conference on Blockchain Technology and Applications (ICBTA 2020)},
    publisher = {ACM},
    title = {{DID and VC: Untangling Decentralized Identifiers and Verifiable Credentials for the Web of Trust}},
    year = {2020},
    pdf = {https://www.en-trust.at/papers/Brunner20c.pdf},
    }
  • [PDF] [DOI] C. Brunner, F. Knirsch, and D. Engel, “SPROOF: A Decentralized Platform for Attribute-Based Authentication,” in Information Systems Security and Privacy, Cham, 2020, p. 1–23.
    [Bibtex]
    @InProceedings{Brunner20b,
    author={Brunner, Clemens
    and Knirsch, Fabian
    and Engel, Dominik},
    editor={Mori, Paolo
    and Furnell, Steven
    and Camp, Olivier},
    title={{SPROOF}: A Decentralized Platform for Attribute-Based Authentication},
    booktitle={Information Systems Security and Privacy},
    year={2020},
    publisher={Springer International Publishing},
    address={Cham},
    pdf = {https://www.en-trust.at/papers/Brunner20b.pdf},
    pages={1--23},
    doi={10.1007/978-3-030-49443-8_1},
    }
  • [PDF] C. Brunner, F. Knirsch, A. Unterweger, and D. Engel, “A Comparison of Blockchain-based PKI Implementations,” in Proceedings of the 6th International Conference on Information Systems Security and Privacy (ICISSP), Valetta, Malta, 2020, p. 333–340.
    [Bibtex]
    @inproceedings{Brunner20a,
    address = {Valetta, Malta},
    author = {Brunner, Clemens and Knirsch, Fabian and Unterweger, Andreas and Engel, Dominik},
    booktitle = {Proceedings of the 6th International Conference on Information Systems Security and Privacy (ICISSP)},
    pages = {333--340},
    publisher = {SciTePress},
    title = {{A Comparison of Blockchain-based PKI Implementations}},
    year = {2020},
    pdf = {https://www.en-trust.at/papers/Brunner20a.pdf}
    }
  • [PDF] F. Knirsch, A. Unterweger, M. Unterrainer, and D. Engel, “Comparison of the Paillier and ElGamal Cryptosystems for Smart Grid Aggregation Protocols,” in Proceedings of the 6th International Conference on Information Systems Security and Privacy (ICISSP), Valetta, Malta, 2020, p. 232–239.
    [Bibtex]
    @inproceedings{Knirsch20a,
    address = {Valetta, Malta},
    author = {Knirsch, Fabian and Unterweger, Andreas and Unterrainer, Maximilian and Engel, Dominik},
    booktitle = {Proceedings of the 6th International Conference on Information Systems Security and Privacy (ICISSP)},
    pages = {232--239},
    publisher = {SciTePress},
    title = {{Comparison of the Paillier and ElGamal Cryptosystems for Smart Grid Aggregation Protocols}},
    year = {2020},
    pdf = {https://www.en-trust.at/papers/Knirsch20a.pdf}
    }

2019

  • [DOI] F. Knirsch, A. Unterweger, and D. Engel, “Implementing a Blockchain from Scratch: Why, How, and What We Learned,” EURASIP Journal on Information Security, vol. 2019, iss. 2, p. 1–14, 2019.
    [Bibtex]
    @article{Knirsch19a,
    abstract = {Blockchains are proposed for many application domains apart from nancial transactions. While there are generic blockchains that can be molded for specific use cases, they often lack a lightweight and easy-to-customize implementation. In this paper, we introduce the core concepts of blockchain technology and investigate a real-world use case from the energy domain, where customers trade portions of their photovoltaic power plant via a blockchain. This does not only involve blockchain technology, but also requires user interaction. Therefore, a fully custom, private and permissioned blockchain is implemented from scratch. We evaluate and motivate the need for blockchain technology within this use case, as well as the desired properties of the system. We then describe the implementation and the insights from our implementation in detail, serving as a guide for others and to show potential opportunities and pitfalls when implementing a blockchain from scratch.},
    author = {Knirsch, Fabian and Unterweger, Andreas and Engel, Dominik},
    journal = {EURASIP Journal on Information Security},
    keywords = {blockchain,implementation,practical insights,private chain},
    title = {{Implementing a Blockchain from Scratch: Why, How, and What We Learned}},
    month = {3},
    year = {2019},
    doi = {10.1186/s13635-019-0085-3},
    pages = {1--14},
    volume = {2019},
    number = {2},
    }
  • [PDF] [DOI] A. Unterweger, S. Taheri-Boshrooyeh, G. Eibl, F. Knirsch, A. Küpçü, and D. Engel, “Understanding Game-Based Privacy Proofs for Energy Consumption Aggregation Protocols,” IEEE Transactions on Smart Grid, vol. 10, iss. 5, p. 5514–5523, 2019.
    [Bibtex]
    @article{Unterweger18b,
    author = {Unterweger, Andreas and Taheri-Boshrooyeh, Sanaz and Eibl, G{\"{u}}nther and Knirsch, Fabian and K{\"{u}}p{\c{c}}{\"{u}}, Alptekin and Engel, Dominik},
    doi = {10.1109/TSG.2018.2883951},
    journal = {IEEE Transactions on Smart Grid},
    number = {5},
    pages = {5514--5523},
    publisher = {IEEE},
    title = {{Understanding Game-Based Privacy Proofs for Energy Consumption Aggregation Protocols}},
    volume = {10},
    pdf = {http://www.en-trust.at/papers/Unterweger18b.pdf},
    year = {2019}
    }
  • [PDF] [DOI] F. Knirsch, O. Langthaler, and D. Engel, “Trust-less electricity consumption optimization in local energy communities,” Energy Informatics 2019, vol. 2, iss. 1, pp. 1-12, 2019.
    [Bibtex]
    @Article{Knirsch19b,
    author = {Fabian Knirsch and Oliver Langthaler and Dominik Engel},
    title = {Trust-less electricity consumption optimization in local energy communities},
    journal = {Energy Informatics 2019},
    year = {2019},
    volume = {2},
    pages = {1-12},
    number = {1},
    pdf = {https://link.springer.com/content/pdf/10.1186%2Fs42162-019-0090-2.pdf},
    doi = {10.1186/s42162-019-0090-2},
    publisher = {Springer}
    }
  • [PDF] C. Brunner, F. Knirsch, and D. Engel, “SPROOF : A platform for issuing and verifying documents in a public blockchain,” in Proceedings of the 5th International Conference on Information Systems Security and Privacy (ICISSP), Prague, Czech Republic, 2019, pp. 15-25.
    [Bibtex]
    @InProceedings{Brunner19a,
    author = {Clemens Brunner and Fabian Knirsch and Dominik Engel},
    title = {SPROOF : A platform for issuing and verifying documents in a public blockchain},
    booktitle = {Proceedings of the 5th International Conference on Information Systems Security and Privacy (ICISSP)},
    address = {Prague, Czech Republic},
    pages = {15-25},
    pdf = {http://www.en-trust.at/papers/Brunner19a.pdf},
    url = {http://www.icissp.org/},
    publisher = {SciTePress},
    year = {2019}
    }

2018

  • [PDF] [DOI] F. Knirsch, G. Eibl, and D. Engel, “Error-resilient Masking Approaches for Privacy Preserving Data Aggregation,” IEEE Transactions on Smart Grid, vol. 9, iss. 4, p. 3351–3361, 2018.
    [Bibtex]
    @Article{Knirsch16b,
    author = {Knirsch, Fabian and Eibl, G{\"u}nther and Engel, Dominik},
    title = {Error-resilient Masking Approaches for Privacy Preserving Data Aggregation},
    journal = {IEEE Transactions on Smart Grid},
    year = {2018},
    volume = {9},
    number = {4},
    month = jul,
    pages = {3351--3361},
    issn = {1949-3053},
    doi = {10.1109/TSG.2016.2630803},
    pdf = {http://www.en-trust.at/papers/Knirsch16b.pdf},
    }
  • [PDF] [DOI] A. Unterweger, F. Knirsch, C. Leixnering, and D. Engel, “Lessons Learned from Implementing a Privacy-Preserving Smart Contract in Ethereum,” in 2018 9th IFIP International Conference on New Technologies, Mobility and Security (NTMS), Paris, France, 2018.
    [Bibtex]
    @inproceedings{Unterweger18a,
    address = {Paris, France},
    author = {Unterweger, Andreas and Knirsch, Fabian and Leixnering, Christoph and Engel, Dominik},
    booktitle = {2018 9th IFIP International Conference on New Technologies, Mobility and Security (NTMS)},
    publisher = {IEEE},
    title = {{Lessons Learned from Implementing a Privacy-Preserving Smart Contract in Ethereum}},
    year = {2018},
    pdf = {http://www.en-trust.at/papers/Unterweger18a.pdf},
    doi = {10.1109/NTMS.2018.8328739},
    }
  • [PDF] F. Knirsch, A. Unterweger, K. Karlsson, D. Engel, and S. B. Wicker, “Evaluation of a blockchain-based proof-of-possession implementation,” Center for Secure Energy Informatics, Salzburg University of Applied Sciences, Technical Report 2018-01, 2018-03-23 2018.
    [Bibtex]
    @TechReport{Knirsch18a-t,
    author = {Fabian Knirsch and Andreas Unterweger and Kolbeinn Karlsson and Dominik Engel and Stephen B. Wicker},
    title = {Evaluation of a blockchain-based proof-of-possession implementation},
    institution = {Center for Secure Energy Informatics, Salzburg University of Applied Sciences},
    year = {2018},
    type = {Technical Report},
    number = {2018-01},
    month = mar,
    date = {2018-03-23},
    pdf = {http://www.en-trust.at/papers/Knirsch18a-t.pdf},
    url = {http://www.en-trust.at/papers/Knirsch18a-t.pdf},
    }

2017

  • [PDF] [DOI] F. Knirsch, A. Unterweger, and D. Engel, “Privacy-preserving blockchain-based electric vehicle charging with dynamic tariff decisions,” Computer Science – Research and Development, 2017.
    [Bibtex]
    @Article{Knirsch17c,
    author = {Knirsch, Fabian and Unterweger, Andreas and Engel, Dominik},
    title = {Privacy-preserving blockchain-based electric vehicle charging with dynamic tariff decisions},
    journal = {Computer Science - Research and Development},
    year = {2017},
    month = {9},
    issn = {1865-2042},
    doi = {10.1007/s00450-017-0348-5},
    pdf = {https://link.springer.com/content/pdf/10.1007%2Fs00450-017-0348-5.pdf},
    url = {https://doi.org/10.1007/s00450-017-0348-5},
    }
  • [PDF] [DOI] F. Knirsch, G. Eibl, and D. Engel, “Multi-Resolution Privacy-Enhancing Technologies for Smart Metering,” EURASIP Journal on Information Security, vol. 2017, iss. 1, p. 6, 2017.
    [Bibtex]
    @Article{Knirsch17a,
    author = {Fabian Knirsch and G\"{u}nther Eibl and Dominik Engel},
    title = {Multi-Resolution Privacy-Enhancing Technologies for Smart Metering},
    journal = {{EURASIP} Journal on Information Security},
    year = {2017},
    volume = {2017},
    number = {1},
    pages = {6},
    issn = {2510-523X},
    doi = {10.1186/s13635-017-0058-3},
    pdf = {https://www.en-trust.at/papers/Knirsch17a.pdf},
    url = {http://dx.doi.org/10.1186/s13635-017-0058-3},
    }
  • F. Knirsch, A. Unterweger, G. Eibl, and D. Engel, “Privacy-Preserving Smart Grid Tariff Decisions with Block-Chain-Based Smart Contracts,” in Sustainable Cloud and Energy Services: Principles and Practices, W. Rivera, Ed., Springer International Publishing, 2017.
    [Bibtex]
    @InCollection{Knirsch17b,
    author = {Fabian Knirsch and Andreas Unterweger and G\"{u}nther Eibl and Dominik Engel},
    title = {Privacy-Preserving Smart Grid Tariff Decisions with Block-Chain-Based Smart Contracts},
    booktitle = {Sustainable Cloud and Energy Services: Principles and Practices},
    publisher = {Springer International Publishing},
    year = {2017},
    editor = {Wilson Rivera},
    }
  • [PDF] F. Knirsch, D. Engel, and Z. Erkin, “A Fault-tolerant and Efficient Scheme for Data Aggregation Over Groups in the Smart Grid,” in Proc.~IEEE Workshop on Information Forensics and Security, 2017, p. 1–6.
    [Bibtex]
    @Inproceedings{Knirsch17d,
    author = {Fabian Knirsch and Dominik Engel and Zekeriya Erkin},
    title = {A Fault-tolerant and Efficient Scheme for Data Aggregation Over Groups in the Smart Grid},
    booktitle = {Proc.~IEEE Workshop on Information Forensics and Security},
    year = {2017},
    pages = {1--6},
    pdf ={http://www.en-trust.at/papers/Knirsch17d.pdf},
    }
  • [PDF] A. Unterweger, F. Knirsch, C. Leixnering, and D. Engel, “Update: Lessons Learned from Implementing a Privacy-Preserving Smart Contract in Ethereum,” Josef Ressel Center for User-Centric Smart Grid Privacy, Security and Control, Technical Report 2017-03, 2017-11-27 2017.
    [Bibtex]
    @TechReport{Unterweger18a-t,
    author = {Andreas Unterweger and Fabian Knirsch and Christoph Leixnering and Dominik Engel},
    title = {Update: Lessons Learned from Implementing a Privacy-Preserving Smart Contract in Ethereum},
    institution = {Josef Ressel Center for User-Centric Smart Grid Privacy, Security and Control},
    year = {2017},
    type = {Technical Report},
    number = {2017-03},
    month = nov,
    date = {2017-11-27},
    pdf = {http://www.en-trust.at/papers/Unterweger18a-t.pdf},
    url = {http://www.en-trust.at/papers/Unterweger18a-t.pdf},
    }
  • [PDF] F. Knirsch, A. Unterweger, G. Eibl, and D. Engel, “Privacy-Preserving Smart Grid Tariff Decisions with Block-Chain-Based Smart Contracts,” Josef Ressel Center for User-Centric Smart Grid Privacy, Security and Control, Technical Report 2017-01, 2017-05-12 2017.
    [Bibtex]
    @TechReport{Knirsch17b-t,
    author = {Fabian Knirsch and Andreas Unterweger and G\"{u}nther Eibl and Dominik Engel},
    title = {Privacy-Preserving Smart Grid Tariff Decisions with Block-Chain-Based Smart Contracts},
    institution = {Josef Ressel Center for User-Centric Smart Grid Privacy, Security and Control},
    year = {2017},
    type = {Technical Report},
    number = {2017-01},
    month = may,
    date = {2017-05-12},
    pdf = {http://www.en-trust.at/papers/Knirsch17b-t.pdf},
    url = {http://www.en-trust.at/papers/Knirsch17b-t.pdf},
    }

2016

  • [DOI] F. Knirsch, “Privacy enhancing technologies in the smart grid user domain,” it – Information Technology, vol. 59, iss. 1, p. 13–22, 2016.
    [Bibtex]
    @Article{Knirsch16c,
    author = {Knirsch, Fabian},
    title = {{Privacy enhancing technologies in the smart grid user domain}},
    journal = {{it -- Information Technology}},
    year = {2016},
    issn = {2196-7032},
    volume = {59},
    number = {1},
    pages = {13--22},
    doi = {10.1515/itit-2016-0054},
    }
  • [PDF] [DOI] A. Unterweger, F. Knirsch, G. Eibl, and D. Engel, “Privacy-preserving load profile matching for tariff decisions in smart grids,” EURASIP Journal on Information Security, vol. 2016, iss. 1, p. 1–17, 2016.
    [Bibtex]
    @Article{Unterweger16a,
    author = {Unterweger, Andreas and Knirsch, Fabian and Eibl, G{\"u}nther and Engel, Dominik},
    title = {Privacy-preserving load profile matching for tariff decisions in smart grids},
    journal = {{EURASIP} Journal on Information Security},
    year = {2016},
    volume = {2016},
    number = {1},
    pages = {1--17},
    issn = {1687-417X},
    doi = {10.1186/s13635-016-0044-1},
    pdf = {http://jis.eurasipjournals.springeropen.com/track/pdf/10.1186/s13635-016-0044-1},
    }
  • [DOI] F. Knirsch, D. Engel, C. Neureiter, M. Frincu, and V. Prasanna, “Privacy Assessment of Data Flow Graphs for an Advanced Recommender System in the Smart Grid,” in Information Systems Security and Privacy – Revised and Selected Papers of ICISSP 2015, O. Camp, E. Weippl, C. Bidan, and E. Aïmeur, Eds., Springer International Publishing, 2016, vol. 576, p. 89–106.
    [Bibtex]
    @InCollection{Knirsch16a,
    author = {Fabian Knirsch and Dominik Engel and Christian Neureiter and Marc Frincu and Viktor Prasanna},
    title = {Privacy Assessment of Data Flow Graphs for an Advanced Recommender System in the Smart Grid},
    booktitle = {Information Systems Security and Privacy -- Revised and Selected Papers of ICISSP 2015},
    publisher = {Springer International Publishing},
    year = {2016},
    editor = {Olivier Camp and Edgar Weippl and Christophe Bidan and Esma A\"{i}meur},
    volume = {576},
    series = {Communications in Computer and Information Science},
    pages = {89--106},
    note = {Best Paper Award.},
    doi = {10.1007/978-3-319-27668-7},
    }

2015

  • [PDF] F. Knirsch, D. Engel, C. Neureiter, M. Frincu, and V. Prasanna, “Model-driven Privacy Assessment in the Smart Grid,” in Proceedings of the 1st International Conference on Information Systems Security and Privacy (ICISSP), 2015, p. 173–181.
    [Bibtex]
    @InProceedings{Knirsch15b,
    author = {Fabian Knirsch and Dominik Engel and Christian Neureiter and Marc Frincu and Viktor Prasanna},
    title = {Model-driven Privacy Assessment in the Smart Grid},
    booktitle = {{Proceedings of the 1st International Conference on Information Systems Security and Privacy (ICISSP)}},
    year = {2015},
    pages = {173--181},
    month = {Feb},
    note = {Best Paper Award.},
    pdf = {http://www.en-trust.at/papers/Knirsch15b.pdf},
    }
  • [PDF] [DOI] F. Knirsch, D. Engel, M. Frincu, and V. Prasanna, “Model-based Assessment for Balancing Privacy Requirements and Operational Capabilities in the Smart Grid,” in Proceedings of the 6th Conference on Innovative Smart Grid Technologies (ISGT), 2015, pp. 1-5.
    [Bibtex]
    @InProceedings{Knirsch15a,
    author = {Fabian Knirsch and Dominik Engel and Marc Frincu and Viktor Prasanna},
    title = {Model-based Assessment for Balancing Privacy Requirements and Operational Capabilities in the Smart Grid},
    booktitle = {{Proceedings of the 6th Conference on Innovative Smart Grid Technologies (ISGT)}},
    year = {2015},
    pages = {1-5},
    month = {Feb},
    doi = {10.1109/ISGT.2015.7131805},
    pdf = {http://www.en-trust.at/papers/Knirsch15a.pdf},
    }

2014

  • [PDF] F. Knirsch, D. Engel, C. Neureiter, M. Frincu, and V. Prasanna, “Model-driven Privacy Assessment in the Smart Grid,” Josef Ressel Center for User-Centric Smart Grid Privacy, Security and Control, Technical Report 2014-01, 2014-07-25 2014.
    [Bibtex]
    @TechReport{Knirsch14a,
    author = {Fabian Knirsch and Dominik Engel and Christian Neureiter and Marc Frincu and Viktor Prasanna},
    title = {Model-driven Privacy Assessment in the Smart Grid},
    institution = {Josef Ressel Center for User-Centric Smart Grid Privacy, Security and Control},
    year = {2014},
    type = {Technical Report},
    number = {2014-01},
    month = jul,
    date = {2014-07-25},
    pdf = {http://www.en-trust.at/papers/Knirsch14a.pdf},
    url = {http://www.en-trust.at/papers/Knirsch14a.pdf},
    }

2013

  • [PDF] A. Veichtlbauer, D. Engel, F. Knirsch, O. Langthaler, and F. Moser, “Advanced Metering and Data Access Infrastructures in Smart Grid Environments,” in Proc. 7th International Conference on Sensor Technologies and Applications, Barcelona, Spain, 2013, p. 63–68.
    [Bibtex]
    @InProceedings{Veichtlbauer13b,
    author = {Armin Veichtlbauer and Dominik Engel and Fabian Knirsch and Oliver Langthaler and Felix Moser},
    title = {Advanced Metering and Data Access Infrastructures in Smart Grid Environments},
    booktitle = {Proc. 7th International Conference on Sensor Technologies and Applications},
    year = {2013},
    pages = {63--68},
    address = {Barcelona, Spain},
    month = aug,
    pdf = {http://www.en-trust.at/papers/Veichtlbauer13b.pdf},
    }