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76 Publications
2023 | Mastersthesis | LibreCat-ID: 43374 | 
Schürmann, Patrick. A Formal Comparison of Advanced Digital Signature Primitives, 2023.
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2023 | Conference Paper | LibreCat-ID: 43458 |
Blömer, Johannes, Jan Bobolz, and Laurens Alexander Porzenheim. “A Generic Construction of an Anonymous Reputation System and Instantiations from Lattices,” 2023.
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2015 | Bachelorsthesis | LibreCat-ID: 326
Heihoff, Frederic. A Group Signature Scheme Based on the LSRW Assumption. Universität Paderborn, 2015.
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2020 | Bachelorsthesis | LibreCat-ID: 18637 |
Schürmann, Patrick. A Group Signature Scheme from Flexible Public Key Signatures and Structure-Preserving Signatures on Equivalence Classes. Universität Paderborn, 2020.
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2015 | Mastersthesis | LibreCat-ID: 325
Löken, Nils. A Group Signature Scheme with Distributed Group Management - An Application of Threshold Encryption. Universität Paderborn, 2015.
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2014 | Conference Paper | LibreCat-ID: 463
Blömer, Johannes, Ricardo Gomes da Silva, Peter Günther, Juliane Krämer, and Jean-Pierre Seifert. “A Practical Second-Order Fault Attack against a Real-World Pairing Implementation.” In Proceedings of Fault Tolerance and Diagnosis in Cryptography(FDTC), 123--136, 2014. https://doi.org/10.1109/FDTC.2014.22.
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2009 | Bachelorsthesis | LibreCat-ID: 2896 |
Liske, Gennadij. Analyse Und Evaluation Eines Identitätsbasierten Signcryption-Verfahrens, 2009.
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2015 | Conference Paper | LibreCat-ID: 322 |
Blömer, Johannes, Jakob Juhnke, and Christina Kolb. “Anonymous and Publicly Linkable Reputation Systems.” In Proceedings of the 18th International Conference on Financial Cryptography and Data Security (FC), 478--488. LNCS, 2015. https://doi.org/10.1007/978-3-662-47854-7_29.
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2015 | Mastersthesis | LibreCat-ID: 321
Eidens, Fabian. Anonymous Credential System Based on Q-Strong Diffie-Hellman Assumption. Universität Paderborn, 2015.
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2013 | Bachelorsthesis | LibreCat-ID: 553
Kohn, Kathlén. Attributbasierte Verschlüsselung mittels Gittermethoden - Mathematische Grundlagen, Verfahren und Sicherheitsbeweise. Universität Paderborn, 2013.
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2017 | Conference Paper | LibreCat-ID: 2344 |
Blömer, Johannes, Peter Günther, Volker Krummel, and Nils Löken. “Attribute-Based Encryption as a Service for Access Control in Large-Scale Organizations.” In Foundations and Practice of Security, 3–17. Cham: Springer International Publishing, 2017. https://doi.org/10.1007/978-3-319-75650-9_1.
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2017 | Mastersthesis | LibreCat-ID: 117
Bemmann, Pascal. Attribute-Based Signatures Using Structure Preserving Signatures. Universität Paderborn, 2017.
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2012 | Bachelorsthesis | LibreCat-ID: 629
Schleiter, Patrick. Attribute-basierte Verschlüsselung. Universität Paderborn, 2012.
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2022 | Bachelorsthesis | LibreCat-ID: 32398
Siek, Hanna. Bringing Structure to Structure-Preserving Signatures: Overview, Implementation and Comparison of Selected SPS Schemes, 2022.
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2017 | Dissertation | LibreCat-ID: 116
Liske, Gennadij. CCA-Security for Predicate Encryption Schemes. Universität Paderborn, 2017. https://doi.org/10.17619/UNIPB/1-220.
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2018 | Conference Paper | LibreCat-ID: 2965
Blömer, Johannes, and Nils Löken. “Cloud Architectures for Searchable Encryption.” In Proceedings of the 13th International Conference on Availability, Reliability and Security, ARES 2018, 25:1--25:10. New York, NY, USA: ACM, n.d. https://doi.org/10.1145/3230833.3230853.
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2016 | Bachelorsthesis | LibreCat-ID: 214
Bemmann, Kai Sören. Commitment Schemes - Definitions, Variants, and Security. Universität Paderborn, 2016.
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2016 | Bachelorsthesis | LibreCat-ID: 213
Porzenheim, Laurens. Comparison of Different Definitions of Chosen-Ciphertext Security in Encryption Schemes. Universität Paderborn, 2016.
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2020 | Bachelorsthesis | LibreCat-ID: 18638
Kramer, Paul. Comparison of Zero-Knowledge Range Proofs. Universität Paderborn, 2020.
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2014 | Preprint | LibreCat-ID: 442 |
Blömer, Johannes, and Gennadij Liske. “Constructing CCA-Secure Predicate Encapsulation Schemes from CPA-Secure Schemes and Universal One-Way Hash Functions.” Universität Paderborn, 2014.
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2016 | Conference Paper | LibreCat-ID: 208
Blömer, Johannes, and Gennadij Liske. “Construction of Fully CCA-Secure Predicate Encryptions from Pair Encoding Schemes.” In Proceedings of the CT-RSA 2016, 431–47. LNCS, 2016. https://doi.org/10.1007/978-3-319-29485-8_25.
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2015 | Mastersthesis | LibreCat-ID: 312
Schleiter, Patrick. Constructions of Fully Secure Predicate Encryption Schemes. Universität Paderborn, 2015.
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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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2021 | Preprint | LibreCat-ID: 26645 |
Bobolz, Jan, Fabian Eidens, Raphael Heitjohann, and Jeremy Fell. “Cryptimeleon: A Library for Fast Prototyping of Privacy-Preserving Cryptographic Schemes.” IACR eprint, 2021.
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2018 | Conference Paper | LibreCat-ID: 2379 |
Blömer, Johannes, and Jan Bobolz. “Delegatable Attribute-Based Anonymous Credentials from Dynamically Malleable Signatures.” In ACNS 2018 Applied Cryptography & Network Security. LNCS, n.d. https://doi.org/10.1007/978-3-319-93387-0_12.
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2023 | Conference Paper | LibreCat-ID: 44855
Hemmrich, Simon, Jan Bobolz, Daniel Beverungen, and Johannes Blömer. “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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2013 | Preprint | LibreCat-ID: 538 |
Blömer, Johannes, and Gennadij Liske. “Direct Chosen-Ciphertext Secure Attribute-Based Key Encapsulations without Random Oracles.” Universität Paderborn, 2013.
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2017 | Bachelorsthesis | LibreCat-ID: 104
Diemert, Denis. EAX - An Authenticated Encryption Mode for Block Ciphers. Universität Paderborn, 2017.
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2015 | Mastersthesis | LibreCat-ID: 302
Stroh, Christian. Efficient Attributes for Pairing-Based Anonymous Credentials. Universität Paderborn, 2015.
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2019 | Bachelorsthesis | LibreCat-ID: 13592
Pilot, Matthias. Efficient Finite-Field Arithmetic for Elliptic Curve Cryptography in Java. Universität Paderborn, 2019.
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2015 | Mastersthesis | LibreCat-ID: 301 |
Bobolz, Jan. Efficient Verifier-Local Revocation for Anonymous Credentials. Universität Paderborn, 2015.
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2015 | Mastersthesis | LibreCat-ID: 299
Gerken, Britta. Elektromagnetische Seitenkanalangriffe auf paarungsbasierte Kryptographie. Universität Paderborn, 2015.
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2018 | Conference Paper | LibreCat-ID: 3873 |
Blömer, Johannes, Fabian Eidens, and Jakob Juhnke. “Enhanced Security of Attribute-Based Signatures.” In The International Conference on Cryptology And Network Security (CANS), 11124:235–55. Lecture Notes in Computer Science. Springer, 2018. https://doi.org/10.1007/978-3-030-00434-7_12.
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2020 | Bachelorsthesis | LibreCat-ID: 18639
Terfort, Tobias. Enhancing Security by Usage of Universal One-Way Hash Functions. Universität Paderborn, 2020.
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2022 | Bachelorsthesis | LibreCat-ID: 34962
Anonymous, A. Evaluating Database Systems Relying on Secure Multiparty Computation, 2022.
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2015 | Mastersthesis | LibreCat-ID: 297
Sosniak, Martin. Evaluation of Pairing Optimization for Embedded Platforms. Universität Paderborn, 2015.
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2011 | Mastersthesis | LibreCat-ID: 659
Liske, Gennadij. Fault Attacks in Pairing-Based Cryptography. Universität Paderborn, 2011.
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2014 | Bachelorsthesis | LibreCat-ID: 421
Lippert, Jan. Fujisaki-Okamoto Transformation. Universität Paderborn, 2014.
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2018 | Conference Paper | LibreCat-ID: 3265 |
Bemmann, Kai, Johannes Blömer, Jan Bobolz, Henrik Bröcher, Denis Pascal Diemert, Fabian Eidens, Lukas Eilers, 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, n.d. https://doi.org/10.1145/3230833.3234517.
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2014 | Bachelorsthesis | LibreCat-ID: 416
Bemmann, Pascal. Group Signature Schemes with Strong Exculpability. Universität Paderborn, 2014.
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2014 | Mastersthesis | LibreCat-ID: 414
Jochheim, Janek. Hiding Software Components Using Functional Encryption. Universität Paderborn, 2014.
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2012 | Bachelorsthesis | LibreCat-ID: 607
Haarhoff, Thomas. Identitätsbasierte Kryptographie - Implementierung von Paarungen für Körper der Charakteristik 2. Universität Paderborn, 2012.
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2012 | Bachelorsthesis | LibreCat-ID: 606
Löken, Nils. Identitätsbasierte Signaturen - Ein Sicherheitsbeweis für Signaturen auf Grundlage von Gap-Diffie-Hellman-Gruppen mit Hilfe des Forking-Lemmas. Universität Paderborn, 2012.
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2019 | Mastersthesis | LibreCat-ID: 13648 |
Scholz, Swante. Implementation and Comparison of Elliptic Curve Algorithms in Java. Universität Paderborn, 2019.
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2015 | Bachelorsthesis | LibreCat-ID: 286
Kalde, Benedikt. Implementierung eines hybriden Verschlüsselungsverfahrens nach Cramer und Shoup. Universität Paderborn, 2015.
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2017 | Bachelorsthesis | LibreCat-ID: 88
Ganesh Athreya, Advait. Instantiating a Predicate Encryption Scheme via Pair Encodings. Universität Paderborn, 2017.
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2021 | Conference Paper | LibreCat-ID: 29566
Bobolz, Jan, Fabian Eidens, Stephan Krenn, Sebastian Ramacher, and Kai Samelin. “Issuer-Hiding Attribute-Based Credentials.” In Cryptology and Network Security. Cham: Springer International Publishing, 2021. https://doi.org/10.1007/978-3-030-92548-2_9.
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2022 | Bachelorsthesis | LibreCat-ID: 32399
Vahle, Ella. Modelling and Proving Security for a Secure MPC Protocol for Stable Matching, 2022.
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2018 | Dissertation | LibreCat-ID: 6597
Juhnke, Jakob. Models and Constructions for Secure Reputation Systems. Universität Paderborn, 2018. https://doi.org/10.17619/UNIPB/1-570.
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2015 | Mastersthesis | LibreCat-ID: 273
Kohn, Kathlén. Number of Voronoi-Relevant Vectors in Lattices with Respect to Arbitrary Norms. Universität Paderborn, 2015.
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2023 | Conference Paper | LibreCat-ID: 35014 |
Blömer, Johannes, Jan Bobolz, and Henrik Bröcher. “On the Impossibility of Surviving (Iterated) Deletion of Weakly Dominated Strategies in Rational MPC,” 2023.
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2022 | Mastersthesis | LibreCat-ID: 31485
Kramer, Paul. On Transforming Lattice-Based Cryptography to the Ring Setting, 2022.
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2016 | Dissertation | LibreCat-ID: 167
Günther, Peter. Physical Attacks on Pairing-Based Cryptography. Universität Paderborn, 2016.
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2018 | Conference Paper | LibreCat-ID: 2862 |
Blömer, Johannes, Fabian Eidens, and Jakob Juhnke. “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, 470–90. Cham: Springer International Publishing, 2018. https://doi.org/10.1007/978-3-319-76953-0_25.
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2023 | Bachelorsthesis | LibreCat-ID: 43375 |
Koch, Angelina. Privacy-Preserving Collection and Evaluation of Log Files, 2023.
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2022 | Dissertation | LibreCat-ID: 35188
Eidens, Fabian. Privacy-Preserving Cryptography: Attribute-Based Signatures and Updatable Credentials, 2022. https://doi.org/10.17619/UNIPB/1-1653.
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2020 | Conference Paper | LibreCat-ID: 16487 |
Bobolz, Jan, Fabian Eidens, Stephan Krenn, Daniel Slamanig, and Christoph Striecks. “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. https://doi.org/10.1145/3320269.3384769.
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2015 | Bachelorsthesis | LibreCat-ID: 261
Eisenhofer, Thorsten. Protokolle zur authentifizierten Schüsselvereinbarung. Universität Paderborn, 2015.
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2018 | Working Paper | LibreCat-ID: 5820
Blömer, Johannes, Jan Bobolz, Christian Scheideler, and Alexander Setzer. Provably Anonymous Communication Based on Trusted Execution Environments, n.d.
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2017 | Bachelorsthesis | LibreCat-ID: 67
Jürgens, Mirko. Provably Secure Key-Derivation-Functions for Certain Types of Applications. Universität Paderborn, 2017.
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2019 | Mastersthesis | LibreCat-ID: 13128 |
Bröcher, Henrik. Rational Secure Multiparty Computation. Universität Paderborn, 2019.
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2014 | Bachelorsthesis | LibreCat-ID: 369
Rath, Timo. RSA-Full Domain Hash Revisited. Universität Paderborn, 2014.
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2013 | Conference Paper | LibreCat-ID: 488
Blömer, Johannes, Peter Günther, and Volker Krummel. “Securing Critical Unattended Systems with Identity Based Cryptography - A Case Study.” In Proceedings of the 5th International Conference on Mathematical Aspects of Computer and Information Sciences (MACIS), 98–105, 2013.
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2013 | Bachelorsthesis | LibreCat-ID: 487 |
Bobolz, Jan. Security Proofs for Pairing-Based Cryptography in the Generic Group Model. Universität Paderborn, 2013.
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2013 | Bachelorsthesis | LibreCat-ID: 486
Otte, Oliver. Seitenkanalresistenz paarungsbasierter Kryptographie. Universität Paderborn, 2013.
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2017 | Mastersthesis | LibreCat-ID: 60
Niehus, David. Semantically Secure Attribute-Based Searchable Encryption. Universität Paderborn, 2017.
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2015 | Conference Paper | LibreCat-ID: 253
Blömer, Johannes, Jakob Juhnke, and Nils Löken. “Short Group Signatures with Distributed Traceability.” In Proceedings of the Sixth International Conference on Mathematical Aspects of Computer and Information Sciences (MACIS), 166–80. LNCS, 2015. https://doi.org/10.1007/978-3-319-32859-1_14.
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2016 | Bachelorsthesis | LibreCat-ID: 152
Dallmeier, Fynn. Short Randomizable Aggregatable Signatures: Constructions and Security Analysis. Universität Paderborn, 2016.
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2017 | Conference Paper | LibreCat-ID: 2967 |
Blömer, Johannes, and Gennadij Liske. “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), 10693:438–53. Lecture Notes in Computer Science. Cham: Springer International Publishing, 2017. https://doi.org/10.1007/978-3-319-72453-9_35.
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2016 | Mastersthesis | LibreCat-ID: 146
Hamm, Julian. Symmetric Anonymous Credentials with Protocols for Relations on Attributes. Universität Paderborn, 2016.
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2014 | Conference Paper | LibreCat-ID: 355
Blömer, Johannes, Peter Günther, and Gennadij Liske. “Tampering Attacks in Pairing-Based Cryptography.” In Proceedings of Fault Tolerance and Diagnosis in Cryptography(FDTC), 1--7, 2014. https://doi.org/10.1109/FDTC.2014.10.
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2019 | Conference Paper | LibreCat-ID: 13904 |
Blömer, Johannes, Jan Bobolz, Denis Pascal Diemert, and Fabian Eidens. “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. https://doi.org/10.1145/3319535.3354223.
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2023 | Mastersthesis | LibreCat-ID: 40440
Pilot, Matthias. Updatable Privacy-Preserving Reputation System Based on Blockchain, 2023.
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2013 | Bachelorsthesis | LibreCat-ID: 471
Tezer, Alina. Verteilte Erstellung und Aktualisierung von Schlüsselservern in identitätsbasierten Verschlüsselungssystemen. Universität Paderborn, 2013.
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2018 | Journal Article | LibreCat-ID: 2685
Blömer, Johannes, and Kathlén Kohn. “Voronoi Cells of Lattices with Respect to Arbitrary Norms.” SIAM Journal on Applied Algebra and Geometry. 2, no. 2 (2018): 314–38. https://doi.org/10.1137/17M1132045.
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2015 | Report | LibreCat-ID: 233 |
Blömer, Johannes, and Kathlén Kohn. Voronoi Cells of Lattices with Respect to Arbitrary Norms. Universität Paderborn, 2015.
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