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110 Publications
2023 | Conference Paper | LibreCat-ID: 43458 |

A Generic Construction of an Anonymous Reputation System and Instantiations from Lattices
J. Blömer, J. Bobolz, L.A. Porzenheim, in: 2023.
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J. Blömer, J. Bobolz, L.A. Porzenheim, in: 2023.
2023 | Conference Paper | LibreCat-ID: 44855
Designing Business Reputation Ecosystems — A Method for Issuing and Trading Monetary Ratings on a Blockchain
S. Hemmrich, J. Bobolz, D. Beverungen, J. Blömer, in: ECIS 2023 Research Papers, 2023.
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S. Hemmrich, J. Bobolz, D. Beverungen, J. Blömer, in: ECIS 2023 Research Papers, 2023.
2023 | Conference Paper | LibreCat-ID: 35014 |

On the impossibility of surviving (iterated) deletion of weakly dominated strategies in rational MPC
J. Blömer, J. Bobolz, H. Bröcher, in: 2023.
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J. Blömer, J. Bobolz, H. Bröcher, in: 2023.
2022 | Dissertation | LibreCat-ID: 35188
Privacy-Preserving Cryptography: Attribute-Based Signatures and Updatable Credentials
F. Eidens, Privacy-Preserving Cryptography: Attribute-Based Signatures and Updatable Credentials, 2022.
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F. Eidens, Privacy-Preserving Cryptography: Attribute-Based Signatures and Updatable Credentials, 2022.
2021 | Preprint | LibreCat-ID: 26645 |

Cryptimeleon: A Library for Fast Prototyping of Privacy-Preserving Cryptographic Schemes
J. Bobolz, F. Eidens, R. Heitjohann, J. Fell, (2021).
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J. Bobolz, F. Eidens, R. Heitjohann, J. Fell, (2021).
2021 | Conference Paper | LibreCat-ID: 29566
Issuer-Hiding Attribute-Based Credentials
J. Bobolz, F. Eidens, S. Krenn, S. Ramacher, K. Samelin, in: Cryptology and Network Security, Springer International Publishing, Cham, 2021.
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J. Bobolz, F. Eidens, S. Krenn, S. Ramacher, K. Samelin, in: Cryptology and Network Security, Springer International Publishing, Cham, 2021.
2020 | Journal Article | LibreCat-ID: 20888
A Complexity Theoretical Study of Fuzzy K-Means
J. Blömer, S. Brauer, K. Bujna, ACM Transactions on Algorithms 16 (2020) 1–25.
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J. Blömer, S. Brauer, K. Bujna, ACM Transactions on Algorithms 16 (2020) 1–25.
2020 | Dissertation | LibreCat-ID: 15482
Cryptography for the Crowd — A Study of Cryptographic Schemes with Applications to Crowd Work
N. Löken, Cryptography for the Crowd — A Study of Cryptographic Schemes with Applications to Crowd Work, 2020.
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| DOI
N. Löken, Cryptography for the Crowd — A Study of Cryptographic Schemes with Applications to Crowd Work, 2020.
2020 | Journal Article | LibreCat-ID: 10790
How well do SEM algorithms imitate EM algorithms? A non-asymptotic analysis for mixture models
J. Blömer, S. Brauer, K. Bujna, D. Kuntze, Advances in Data Analysis and Classification 14 (2020) 147–173.
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J. Blömer, S. Brauer, K. Bujna, D. Kuntze, Advances in Data Analysis and Classification 14 (2020) 147–173.
2020 | Conference Paper | LibreCat-ID: 16487 |

Privacy-Preserving Incentive Systems with Highly Efficient Point-Collection
J. Bobolz, F. Eidens, S. Krenn, D. Slamanig, C. Striecks, in: Proceedings of the 15th ACM Asia Conference on Computer and Communications Security (ASIA CCS ’20), ACM, New York, NY, USA, 2020.
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J. Bobolz, F. Eidens, S. Krenn, D. Slamanig, C. Striecks, in: Proceedings of the 15th ACM Asia Conference on Computer and Communications Security (ASIA CCS ’20), ACM, New York, NY, USA, 2020.
2019 | Dissertation | LibreCat-ID: 13679
Classification and Approximation of Geometric Location Problems
S. Brauer, Classification and Approximation of Geometric Location Problems, Paderborn, 2019.
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S. Brauer, Classification and Approximation of Geometric Location Problems, Paderborn, 2019.
2019 | Journal Article | LibreCat-ID: 2916
Complexity of single-swap heuristics for metric facility location and related problems
S. Brauer, Theoretical Computer Science 754 (2019) 88–106.
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| DOI
S. Brauer, Theoretical Computer Science 754 (2019) 88–106.
2019 | Conference Paper | LibreCat-ID: 13557 |

Dynamic Searchable Encryption with Access Control
J. Blömer, N. Löken, in: 12th International Symposium on Foundations and Practice of Security, FPS 2019, Springer, 2019.
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J. Blömer, N. Löken, in: 12th International Symposium on Foundations and Practice of Security, FPS 2019, Springer, 2019.
2019 | Conference Paper | LibreCat-ID: 13554 |

Personal Cross-Platform Reputation
J. Blömer, N. Löken, in: Security and Trust Management, STM 2019, 2019.
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J. Blömer, N. Löken, in: Security and Trust Management, STM 2019, 2019.
2019 | Conference Paper | LibreCat-ID: 13904 |

Updatable Anonymous Credentials and Applications to Incentive Systems
J. Blömer, J. Bobolz, D.P. Diemert, F. Eidens, in: Proceedings of the 2019 ACM SIGSAC Conference on Computer and Communications Security - CCS ’19, 2019.
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J. Blömer, J. Bobolz, D.P. Diemert, F. Eidens, in: Proceedings of the 2019 ACM SIGSAC Conference on Computer and Communications Security - CCS ’19, 2019.
2018 | Conference Paper | LibreCat-ID: 2965
Cloud Architectures for Searchable Encryption
J. Blömer, N. Löken, in: Proceedings of the 13th International Conference on Availability, Reliability and Security, ARES 2018, ACM, New York, NY, USA, n.d., pp. 25:1--25:10.
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J. Blömer, N. Löken, in: Proceedings of the 13th International Conference on Availability, Reliability and Security, ARES 2018, ACM, New York, NY, USA, n.d., pp. 25:1--25:10.
2018 | Conference Paper | LibreCat-ID: 4344
Coresets for Fuzzy K-Means with Applications
J. Blömer, S. Brauer, K. Bujna, in: 29th International Symposium on Algorithms and Computation (ISAAC 2018), Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik, 2018, pp. 46:1--46:12.
LibreCat
| DOI
J. Blömer, S. Brauer, K. Bujna, in: 29th International Symposium on Algorithms and Computation (ISAAC 2018), Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik, 2018, pp. 46:1--46:12.
2018 | Conference Paper | LibreCat-ID: 2379 |

Delegatable Attribute-based Anonymous Credentials from Dynamically Malleable Signatures
J. Blömer, J. Bobolz, in: ACNS 2018 Applied Cryptography & Network Security, n.d.
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J. Blömer, J. Bobolz, in: ACNS 2018 Applied Cryptography & Network Security, n.d.
2018 | Conference Paper | LibreCat-ID: 3873 |

Enhanced Security of Attribute-Based Signatures
J. Blömer, F. Eidens, J. Juhnke, in: The International Conference on Cryptology And Network Security (CANS), Springer, 2018, pp. 235–255.
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J. Blömer, F. Eidens, J. Juhnke, in: The International Conference on Cryptology And Network Security (CANS), Springer, 2018, pp. 235–255.
2018 | Conference Paper | LibreCat-ID: 3265 |

Fully-Featured Anonymous Credentials with Reputation System
K. Bemmann, J. Blömer, J. Bobolz, H. Bröcher, D.P. Diemert, F. Eidens, L. Eilers, J.F. Haltermann, J. Juhnke, B. Otour, L.A. Porzenheim, S. Pukrop, E. Schilling, M. Schlichtig, M. Stienemeier, in: Proceedings of the 13th International Conference on Availability, Reliability and Security - ARES ’18, ACM, New York, NY, USA, n.d.
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K. Bemmann, J. Blömer, J. Bobolz, H. Bröcher, D.P. Diemert, F. Eidens, L. Eilers, J.F. Haltermann, J. Juhnke, B. Otour, L.A. Porzenheim, S. Pukrop, E. Schilling, M. Schlichtig, M. Stienemeier, in: Proceedings of the 13th International Conference on Availability, Reliability and Security - ARES ’18, ACM, New York, NY, USA, n.d.
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