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229 Publications
2023 | Mastersthesis | LibreCat-ID: 40440
Pilot M. Updatable Privacy-Preserving Reputation System Based on Blockchain.; 2023.
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2023 | Mastersthesis | LibreCat-ID: 43374 | 
Schürmann P. A Formal Comparison of Advanced Digital Signature Primitives.; 2023.
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2023 | Conference Paper | LibreCat-ID: 44855
Hemmrich S, Bobolz J, Beverungen D, Blömer J. Designing Business Reputation Ecosystems — A Method for Issuing and Trading Monetary Ratings on a Blockchain. In: ECIS 2023 Research Papers. ; 2023.
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2023 | Bachelorsthesis | LibreCat-ID: 43375 |
Koch A. Privacy-Preserving Collection and Evaluation of Log Files.; 2023.
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2023 | Conference Paper | LibreCat-ID: 35014 |
Blömer J, Bobolz J, Bröcher H. On the impossibility of surviving (iterated) deletion of weakly dominated strategies in rational MPC. In: ; 2023.
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2023 | Conference Paper | LibreCat-ID: 43458 |
Blömer J, Bobolz J, Porzenheim LA. A Generic Construction of an Anonymous Reputation System and Instantiations from Lattices. In: ; 2023.
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2023 | Mastersthesis | LibreCat-ID: 47658
Anonymous A. Private Set Intersection Using Third Generation FHE.; 2023.
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2023 | Mastersthesis | LibreCat-ID: 47659
Anonymous A. Rational Models in Cryptography Applied to Matching.; 2023.
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2022 | Bachelorsthesis | LibreCat-ID: 32399
Vahle E. Modelling and Proving Security for a Secure MPC Protocol for Stable Matching.; 2022.
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2022 | Bachelorsthesis | LibreCat-ID: 32398
Siek H. Bringing Structure to Structure-Preserving Signatures: Overview, Implementation and Comparison of Selected SPS Schemes.; 2022.
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2022 | Mastersthesis | LibreCat-ID: 31485
Kramer P. On Transforming Lattice-Based Cryptography to the Ring Setting.; 2022.
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2022 | Bachelorsthesis | LibreCat-ID: 34962
Anonymous A. Evaluating Database Systems Relying on Secure Multiparty Computation.; 2022.
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2022 | Mastersthesis | LibreCat-ID: 34963
Anonymous A. Cost of Privacy-Preserving SMPC Protocols for NN-Based Inference.; 2022.
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2022 | Dissertation | LibreCat-ID: 35188
Eidens F. Privacy-Preserving Cryptography: Attribute-Based Signatures and Updatable Credentials.; 2022. doi:10.17619/UNIPB/1-1653
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2022 | Mastersthesis | LibreCat-ID: 45255
Anonymous A. Comparison of Open Source Software in Quantum Computing from the Perspective of Software Development.; 2022.
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2022 | Mastersthesis | LibreCat-ID: 45256
Anonymous A. A Detailed Survey and Comparison of the Selected Homomorphic Encryption Libraries.; 2022.
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2022 | Bachelorsthesis | LibreCat-ID: 45257
Beckmann M. Analysis of an Interactive Lattice Based Aggregated Signature Scheme.; 2022.
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2021 | Preprint | LibreCat-ID: 26645 |
Bobolz J, Eidens F, Heitjohann R, Fell J. Cryptimeleon: A Library for Fast Prototyping of Privacy-Preserving Cryptographic Schemes. Published online 2021.
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2021 | Conference Paper | LibreCat-ID: 29566
Bobolz J, Eidens F, Krenn S, Ramacher S, Samelin K. Issuer-Hiding Attribute-Based Credentials. In: Cryptology and Network Security. Springer International Publishing; 2021. doi:10.1007/978-3-030-92548-2_9
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| DOI
2021 | Bachelorsthesis | LibreCat-ID: 32401
Siemer JN. Lattice Reductions and Their Applications to Cryptographic Systems.; 2021.
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2021 | Mastersthesis | LibreCat-ID: 32400
Anonymous A. Performance Analysis of FHE Libraries.; 2021.
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2021 | Bachelorsthesis | LibreCat-ID: 32402
Böttger MAE. IND-CCA Secure PKE Schemes - Based on Lattices.; 2021.
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2021 | Mastersthesis | LibreCat-ID: 45254
Anonymous A. Device-Independent Security Proofs Via Entropy Accumulation.; 2021.
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2020 | Bachelorsthesis | LibreCat-ID: 21117
Manegold P. On Batch Proofs of Partial Knowledge.; 2020.
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2020 | Bachelorsthesis | LibreCat-ID: 21118
Anonymous A. Measuring the Performance of SNARK Libraries.; 2020.
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2020 | Bachelorsthesis | LibreCat-ID: 21119
Westerwelle M. Trapdoors and Sampling Procedures for Lattice-Based Cryptographic Constructions.; 2020.
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2020 | Bachelorsthesis | LibreCat-ID: 21121
Anonymous A. Benchmarking the Efficiency of Secure Multiparty Computation for Real World Problems.; 2020.
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2020 | Journal Article | LibreCat-ID: 20888
Blömer J, Brauer S, Bujna K. A Complexity Theoretical Study of Fuzzy K-Means. ACM Transactions on Algorithms. 2020;16(4):1-25. doi:10.1145/3409385
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| DOI
2020 | Bachelorsthesis | LibreCat-ID: 18085
Heimann J. Distributed Key Generation for Attribute-Based Signatures.; 2020.
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2020 | Bachelorsthesis | LibreCat-ID: 18637 |
Schürmann P. A Group Signature Scheme from Flexible Public Key Signatures and Structure-Preserving Signatures on Equivalence Classes. Universität Paderborn; 2020.
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2020 | Bachelorsthesis | LibreCat-ID: 18639
Terfort T. Enhancing Security by Usage of Universal One-Way Hash Functions. Universität Paderborn; 2020.
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2020 | Conference Paper | LibreCat-ID: 16487 |
Bobolz J, Eidens F, Krenn S, Slamanig D, Striecks C. Privacy-Preserving Incentive Systems with Highly Efficient Point-Collection. In: Proceedings of the 15th ACM Asia Conference on Computer and Communications Security (ASIA CCS ’20),. New York, NY, USA: ACM; 2020. doi:10.1145/3320269.3384769
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2020 | Journal Article | LibreCat-ID: 10790
Blömer J, Brauer S, Bujna K, Kuntze D. How well do SEM algorithms imitate EM algorithms? A non-asymptotic analysis for mixture models. Advances in Data Analysis and Classification. 2020;14:147–173. doi:10.1007/s11634-019-00366-7
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2020 | Dissertation | LibreCat-ID: 15482
Löken N. Cryptography for the Crowd — A Study of Cryptographic Schemes with Applications to Crowd Work.; 2020. doi:10.17619/UNIPB/1-854
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2020 | Bachelorsthesis | LibreCat-ID: 18638
Kramer P. Comparison of Zero-Knowledge Range Proofs. Universität Paderborn; 2020.
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2019 | Journal Article | LibreCat-ID: 2916
Brauer S. Complexity of single-swap heuristics for metric facility location and related problems. Theoretical Computer Science. 2019;754:88-106. doi:10.1016/j.tcs.2018.04.048
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2019 | Mastersthesis | LibreCat-ID: 15746
Otte O. Outsourced Decryption of Attribute-Based Ciphertexts.; 2019.
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2019 | Bachelorsthesis | LibreCat-ID: 15747
Wördenweber NC. On the Security of the Rouselakis-Waters Ciphertext-Policy Attribute-Based Encryption Scheme in the Random Oracle Model.; 2019.
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2019 | Bachelorsthesis | LibreCat-ID: 15819
Leutnant M. Experimentelle Untersuchung Des SEM-Algorithmus.; 2019.
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2019 | Mastersthesis | LibreCat-ID: 13128 |
Bröcher H. Rational Secure Multiparty Computation. Universität Paderborn; 2019.
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2019 | Mastersthesis | LibreCat-ID: 10306 |
Porzenheim LA. Post-Quantum Secure Group Signatures.; 2019.
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2019 | Conference Paper | LibreCat-ID: 13554 |
Blömer J, Löken N. Personal Cross-Platform Reputation. In: Security and Trust Management, STM 2019. Vol 11738. LNCS. ; 2019. doi:10.1007/978-3-030-31511-5_9
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2019 | Conference Paper | LibreCat-ID: 13557 |
Blömer J, Löken N. Dynamic Searchable Encryption with Access Control. In: 12th International Symposium on Foundations and Practice of Security, FPS 2019. Vol 12056. LNCS. Springer; 2019.
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2019 | Bachelorsthesis | LibreCat-ID: 13592
Pilot M. Efficient Finite-Field Arithmetic for Elliptic Curve Cryptography in Java. Universität Paderborn; 2019.
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2019 | Mastersthesis | LibreCat-ID: 13648 |
Scholz S. Implementation and Comparison of Elliptic Curve Algorithms in Java. Universität Paderborn; 2019.
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2019 | Dissertation | LibreCat-ID: 13679
Brauer S. Classification and Approximation of Geometric Location Problems. Paderborn; 2019. doi:10.17619/UNIPB/1-816
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2019 | Conference Paper | LibreCat-ID: 13904 |
Blömer J, Bobolz J, Diemert DP, Eidens F. Updatable Anonymous Credentials and Applications to Incentive Systems. In: Proceedings of the 2019 ACM SIGSAC Conference on Computer and Communications Security - CCS ’19. Proceedings of the 2019 ACM SIGSAC Conference on Computer and Communications Security - CCS ’19. ; 2019. doi:10.1145/3319535.3354223
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2018 | Conference Paper | LibreCat-ID: 2862 |
Blömer J, Eidens F, Juhnke J. Practical, Anonymous, and Publicly Linkable Universally-Composable Reputation Systems. In: Topics in Cryptology - {CT-RSA} 2018 - The Cryptographers’ Track at the {RSA} Conference 2018, Proceedings. Cham: Springer International Publishing; 2018:470-490. doi:10.1007/978-3-319-76953-0_25
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2018 | Journal Article | LibreCat-ID: 2685
Blömer J, Kohn K. Voronoi Cells of Lattices with Respect to Arbitrary Norms. SIAM Journal on Applied Algebra and Geometry. 2018;2(2):314-338. doi:10.1137/17M1132045
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2018 | Conference Paper | LibreCat-ID: 3265 |
Bemmann K, Blömer J, Bobolz J, et al. Fully-Featured Anonymous Credentials with Reputation System. In: Proceedings of the 13th International Conference on Availability, Reliability and Security - ARES ’18. New York, NY, USA: ACM. doi:10.1145/3230833.3234517
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2018 | Conference Paper | LibreCat-ID: 2965
Blömer J, Löken N. Cloud Architectures for Searchable Encryption. In: Proceedings of the 13th International Conference on Availability, Reliability and Security, ARES 2018. New York, NY, USA: ACM; :25:1--25:10. doi:10.1145/3230833.3230853
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2018 | Working Paper | LibreCat-ID: 5820
Blömer J, Bobolz J, Scheideler C, Setzer A. Provably Anonymous Communication Based on Trusted Execution Environments.
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2018 | Conference Paper | LibreCat-ID: 4344
Blömer J, Brauer S, Bujna K. Coresets for Fuzzy K-Means with Applications. In: 29th International Symposium on Algorithms and Computation (ISAAC 2018). Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik; 2018:46:1--46:12. doi:10.4230/LIPIcs.ISAAC.2018.46
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2018 | Bachelorsthesis | LibreCat-ID: 5426
von Heißen O. Implementierung und Analyse von Searchable Encryption.; 2018.
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2018 | Dissertation | LibreCat-ID: 6597
Juhnke J. Models and Constructions for Secure Reputation Systems. Universität Paderborn; 2018. doi:10.17619/UNIPB/1-570
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2018 | Conference Paper | LibreCat-ID: 3873 |
Blömer J, Eidens F, Juhnke J. Enhanced Security of Attribute-Based Signatures. In: The International Conference on Cryptology And Network Security (CANS). Vol 11124. Lecture Notes in Computer Science. Springer; 2018:235-255. doi:10.1007/978-3-030-00434-7_12
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2018 | Conference Paper | LibreCat-ID: 2379 |
Blömer J, Bobolz J. Delegatable Attribute-based Anonymous Credentials from Dynamically Malleable Signatures. In: ACNS 2018 Applied Cryptography & Network Security. LNCS. doi:10.1007/978-3-319-93387-0_12
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2017 | Dissertation | LibreCat-ID: 2908
Bujna K. Soft Clustering Algorithms - Theoretical and Practical Improvements. Universität Paderborn; 2017. doi:10.17619/UNIPB/1-226
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2017 | Conference Paper | LibreCat-ID: 2967 |
Blömer J, Liske G. Subtleties in Security Definitions for Predicate Encryption with Public Index. In: Proceedings of the International Conference of Mathematical Aspects of Computer and Information Sciences (MACIS). Vol 10693. Lecture Notes in Computer Science. Cham: Springer International Publishing; 2017:438-453. doi:10.1007/978-3-319-72453-9_35
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2017 | Dissertation | LibreCat-ID: 116
Liske G. CCA-Security for Predicate Encryption Schemes. Universität Paderborn; 2017. doi:10.17619/UNIPB/1-220
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2017 | Conference Paper | LibreCat-ID: 2343 |
Löken N. Searchable Encryption with Access Control. In: Proceedings of the 12th International Conference on Availability, Reliability and Security - ARES ’17. ICPS. ACM Press; 2017. doi:10.1145/3098954.3098987
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2017 | Conference Paper | LibreCat-ID: 2344 |
Blömer J, Günther P, Krummel V, Löken N. Attribute-Based Encryption as a Service for Access Control in Large-Scale Organizations. In: Foundations and Practice of Security. Cham: Springer International Publishing; 2017:3-17. doi:10.1007/978-3-319-75650-9_1
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2017 | Book Chapter | LibreCat-ID: 2381
Brauer S. Complexity of Single-Swap Heuristics for Metric Facility Location and Related Problems. In: Fotakis D, Pagourtzis A, Paschos VT, eds. Lecture Notes in Computer Science. Vol 10236. Cham: Springer International Publishing; 2017:116-127. doi:10.1007/978-3-319-57586-5_11
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2017 | Mastersthesis | LibreCat-ID: 60
Niehus D. Semantically Secure Attribute-Based Searchable Encryption. Universität Paderborn; 2017.
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2017 | Bachelorsthesis | LibreCat-ID: 88
Ganesh Athreya A. Instantiating a Predicate Encryption Scheme via Pair Encodings. Universität Paderborn; 2017.
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2017 | Bachelorsthesis | LibreCat-ID: 67
Jürgens M. Provably Secure Key-Derivation-Functions for Certain Types of Applications. Universität Paderborn; 2017.
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2017 | Bachelorsthesis | LibreCat-ID: 104
Diemert D. EAX - An Authenticated Encryption Mode for Block Ciphers. Universität Paderborn; 2017.
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2017 | Mastersthesis | LibreCat-ID: 117
Bemmann P. Attribute-Based Signatures Using Structure Preserving Signatures. Universität Paderborn; 2017.
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2016 | Conference Paper | LibreCat-ID: 2947
Blömer J, Günther P. Singular Curve Point Decompression Attack. In: 2015 Workshop on Fault Diagnosis and Tolerance in Cryptography (FDTC). IEEE; 2016. doi:10.1109/fdtc.2015.17
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2016 | Book Chapter | LibreCat-ID: 2948
Günther P, Krummel V. Implementing Cryptographic Pairings on Accumulator Based Smart Card Architectures. In: Mathematical Aspects of Computer and Information Sciences. Cham: Springer International Publishing; 2016:151-165. doi:10.1007/978-3-319-32859-1_13
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2016 | Book Chapter | LibreCat-ID: 2968
Blömer J, Lammersen C, Schmidt M, Sohler C. Theoretical Analysis of the k-Means Algorithm – A Survey. In: Algorithm Engineering. Cham: Springer International Publishing; 2016:81-116. doi:10.1007/978-3-319-49487-6_3
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2016 | Preprint | LibreCat-ID: 2969 |
Blömer J, Brauer S, Bujna K. Hard-Clustering with Gaussian Mixture Models. 2016.
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2016 | Book Chapter | LibreCat-ID: 2970
Blömer J, Bujna K. Adaptive Seeding for Gaussian Mixture Models. In: Advances in Knowledge Discovery and Data Mining. Cham: Springer International Publishing; 2016:296-308. doi:10.1007/978-3-319-31750-2_24
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2016 | Report | LibreCat-ID: 2971
Blömer J, Günther P. Effizienz Und Sicherheit Paarungsbasierter Kryptographie. Tagungsband des 26. Fraunhofer SIT Smartcard-Workshops; 2016.
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2016 | Bachelorsthesis | LibreCat-ID: 213
Porzenheim L. Comparison of Different Definitions of Chosen-Ciphertext Security in Encryption Schemes. Universität Paderborn; 2016.
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2016 | Bachelorsthesis | LibreCat-ID: 214
Bemmann KS. Commitment Schemes - Definitions, Variants, and Security. Universität Paderborn; 2016.
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2016 | Conference Paper | LibreCat-ID: 2367
Blömer J, Brauer S, Bujna K. A Theoretical Analysis of the Fuzzy K-Means Problem. In: 2016 IEEE 16th International Conference on Data Mining (ICDM). IEEE; 2016:805-810. doi:10.1109/icdm.2016.0094
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2016 | Conference Paper | LibreCat-ID: 208
Blömer J, Liske G. Construction of Fully CCA-Secure Predicate Encryptions from Pair Encoding Schemes. In: Proceedings of the CT-RSA 2016. LNCS. ; 2016:431-447. doi:10.1007/978-3-319-29485-8_25
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2016 | Dissertation | LibreCat-ID: 167
Günther P. Physical Attacks on Pairing-Based Cryptography. Universität Paderborn; 2016.
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2016 | Mastersthesis | LibreCat-ID: 146
Hamm J. Symmetric Anonymous Credentials with Protocols for Relations on Attributes. Universität Paderborn; 2016.
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2016 | Bachelorsthesis | LibreCat-ID: 152
Dallmeier F. Short Randomizable Aggregatable Signatures: Constructions and Security Analysis. Universität Paderborn; 2016.
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2016 | Book Chapter | LibreCat-ID: 2978
Blömer J, Bujna K. Adaptive Seeding for Gaussian Mixture Models. In: Advances in Knowledge Discovery and Data Mining. Springer International Publishing; 2016:296-308. doi:10.1007/978-3-319-31750-2_24
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2015 | Conference Paper | LibreCat-ID: 253
Blömer J, Juhnke J, Löken N. Short Group Signatures with Distributed Traceability. In: Proceedings of the Sixth International Conference on Mathematical Aspects of Computer and Information Sciences (MACIS). LNCS. ; 2015:166-180. doi:10.1007/978-3-319-32859-1_14
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2015 | Bachelorsthesis | LibreCat-ID: 286
Kalde B. Implementierung eines hybriden Verschlüsselungsverfahrens nach Cramer und Shoup. Universität Paderborn; 2015.
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2015 | Bachelorsthesis | LibreCat-ID: 2865
Strotmann D. Singulärwertzerlegung Für μ-Ähnliche Bregman-Divergenzen.; 2015.
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2015 | Bachelorsthesis | LibreCat-ID: 261
Eisenhofer T. Protokolle zur authentifizierten Schüsselvereinbarung. Universität Paderborn; 2015.
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2015 | Mastersthesis | LibreCat-ID: 321
Eidens F. Anonymous Credential System Based on Q-Strong Diffie-Hellman Assumption. Universität Paderborn; 2015.
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2015 | Conference Paper | LibreCat-ID: 322 |
Blömer J, Juhnke J, Kolb C. Anonymous and Publicly Linkable Reputation Systems. In: Proceedings of the 18th International Conference on Financial Cryptography and Data Security (FC). LNCS. ; 2015:478--488. doi:10.1007/978-3-662-47854-7_29
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2015 | Mastersthesis | LibreCat-ID: 325
Löken N. A Group Signature Scheme with Distributed Group Management - An Application of Threshold Encryption. Universität Paderborn; 2015.
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2015 | Bachelorsthesis | LibreCat-ID: 326
Heihoff F. A Group Signature Scheme Based on the LSRW Assumption. Universität Paderborn; 2015.
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2015 | Mastersthesis | LibreCat-ID: 297
Sosniak M. Evaluation of Pairing Optimization for Embedded Platforms. Universität Paderborn; 2015.
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2015 | Mastersthesis | LibreCat-ID: 299
Gerken B. Elektromagnetische Seitenkanalangriffe auf paarungsbasierte Kryptographie. Universität Paderborn; 2015.
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2015 | Mastersthesis | LibreCat-ID: 301 |
Bobolz J. Efficient Verifier-Local Revocation for Anonymous Credentials. Universität Paderborn; 2015.
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2015 | Mastersthesis | LibreCat-ID: 302
Stroh C. Efficient Attributes for Pairing-Based Anonymous Credentials. Universität Paderborn; 2015.
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2015 | Mastersthesis | LibreCat-ID: 312
Schleiter P. Constructions of Fully Secure Predicate Encryption Schemes. Universität Paderborn; 2015.
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2015 | Mastersthesis | LibreCat-ID: 273
Kohn K. Number of Voronoi-Relevant Vectors in Lattices with Respect to Arbitrary Norms. Universität Paderborn; 2015.
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2015 | Report | LibreCat-ID: 233 |
Blömer J, Kohn K. Voronoi Cells of Lattices with Respect to Arbitrary Norms. Universität Paderborn; 2015.
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2014 | Bachelorsthesis | LibreCat-ID: 2866
Biermeier F. Untersuchung Des Erreichbarkeitsproblems in Ungerichteten Graphen Bezüglich Den Komplexitätsklassen L Und SL.; 2014.
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