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44 Publications
2023 | Conference Paper | LibreCat-ID: 43458 | 
J. Blömer, J. Bobolz, and L. A. Porzenheim, “A Generic Construction of an Anonymous Reputation System and Instantiations from Lattices,” presented at the Asiacrypt 2023, Guangzhou, China, 2023.
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2015 | Mastersthesis | LibreCat-ID: 325
N. Löken, 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
J. Blömer, R. Gomes da Silva, P. Günther, J. Krämer, and J.-P. Seifert, “A Practical Second-Order Fault Attack against a Real-World Pairing Implementation,” in Proceedings of Fault Tolerance and Diagnosis in Cryptography(FDTC), 2014, pp. 123--136.
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2015 | Conference Paper | LibreCat-ID: 322 |
J. Blömer, J. Juhnke, and C. Kolb, “Anonymous and Publicly Linkable Reputation Systems,” in Proceedings of the 18th International Conference on Financial Cryptography and Data Security (FC), 2015, pp. 478--488.
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2015 | Mastersthesis | LibreCat-ID: 321
F. Eidens, Anonymous credential system based on q-Strong Diffie-Hellman Assumption. Universität Paderborn, 2015.
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2013 | Bachelorsthesis | LibreCat-ID: 553
K. Kohn, Attributbasierte Verschlüsselung mittels Gittermethoden - Mathematische Grundlagen, Verfahren und Sicherheitsbeweise. Universität Paderborn, 2013.
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2017 | Conference Paper | LibreCat-ID: 2344 |
J. Blömer, P. Günther, V. Krummel, and N. Löken, “Attribute-Based Encryption as a Service for Access Control in Large-Scale Organizations,” in Foundations and Practice of Security, 2017, pp. 3–17.
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2012 | Bachelorsthesis | LibreCat-ID: 629
P. Schleiter, Attribute-basierte Verschlüsselung. Universität Paderborn, 2012.
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2017 | Dissertation | LibreCat-ID: 116
G. Liske, CCA-Security for Predicate Encryption Schemes. Universität Paderborn, 2017.
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2018 | Conference Paper | LibreCat-ID: 2965
J. Blömer and N. Löken, “Cloud Architectures for Searchable Encryption,” in Proceedings of the 13th International Conference on Availability, Reliability and Security, ARES 2018, Hamburg, Germany, pp. 25:1--25:10.
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2014 | Preprint | LibreCat-ID: 442 |
J. Blömer and G. 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
J. Blömer and G. Liske, “Construction of Fully CCA-Secure Predicate Encryptions from Pair Encoding Schemes,” in Proceedings of the CT-RSA 2016, 2016, pp. 431–447.
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2015 | Mastersthesis | LibreCat-ID: 312
P. Schleiter, Constructions of Fully Secure Predicate Encryption Schemes. Universität Paderborn, 2015.
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2021 | Preprint | LibreCat-ID: 26645 |
J. Bobolz, F. Eidens, R. Heitjohann, and J. 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 |
J. Blömer and J. Bobolz, “Delegatable Attribute-based Anonymous Credentials from Dynamically Malleable Signatures,” presented at the The 16th International Conference on Applied Cryptography and Network Security, Leuven, Belgium, doi: 10.1007/978-3-319-93387-0_12.
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2023 | Conference Paper | LibreCat-ID: 44855
S. Hemmrich, J. Bobolz, D. Beverungen, and J. Blömer, “Designing Business Reputation Ecosystems — A Method for Issuing and Trading Monetary Ratings on a Blockchain,” presented at the ECIS 2023, 2023.
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2013 | Preprint | LibreCat-ID: 538 |
J. Blömer and G. Liske, “Direct Chosen-Ciphertext Secure Attribute-Based Key Encapsulations without Random Oracles.” Universität Paderborn, 2013.
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2015 | Mastersthesis | LibreCat-ID: 301 |
J. Bobolz, Efficient Verifier-Local Revocation for Anonymous Credentials. Universität Paderborn, 2015.
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2018 | Conference Paper | LibreCat-ID: 3873 |
J. Blömer, F. Eidens, and J. Juhnke, “Enhanced Security of Attribute-Based Signatures,” in The International Conference on Cryptology And Network Security (CANS), Naples, Italy, 2018, vol. 11124, pp. 235–255, doi: 10.1007/978-3-030-00434-7_12.
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2011 | Mastersthesis | LibreCat-ID: 659
G. Liske, Fault attacks in pairing-based cryptography. Universität Paderborn, 2011.
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2014 | Bachelorsthesis | LibreCat-ID: 421
J. Lippert, Fujisaki-Okamoto Transformation. Universität Paderborn, 2014.
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2018 | Conference Paper | LibreCat-ID: 3265 |
K. Bemmann et al., “Fully-Featured Anonymous Credentials with Reputation System,” in Proceedings of the 13th International Conference on Availability, Reliability and Security - ARES ’18, Hamburg, Germany.
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2014 | Mastersthesis | LibreCat-ID: 414
J. Jochheim, Hiding software components using functional encryption. Universität Paderborn, 2014.
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2012 | Bachelorsthesis | LibreCat-ID: 607
T. Haarhoff, Identitätsbasierte Kryptographie - Implementierung von Paarungen für Körper der Charakteristik 2. Universität Paderborn, 2012.
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2012 | Bachelorsthesis | LibreCat-ID: 606
N. Löken, 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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2015 | Bachelorsthesis | LibreCat-ID: 286
B. Kalde, Implementierung eines hybriden Verschlüsselungsverfahrens nach Cramer und Shoup. Universität Paderborn, 2015.
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2021 | Conference Paper | LibreCat-ID: 29566
J. Bobolz, F. Eidens, S. Krenn, S. Ramacher, and K. Samelin, “Issuer-Hiding Attribute-Based Credentials,” 2021, doi: 10.1007/978-3-030-92548-2_9.
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2015 | Mastersthesis | LibreCat-ID: 273
K. Kohn, 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 |
J. Blömer, J. Bobolz, and H. Bröcher, “On the impossibility of surviving (iterated) deletion of weakly dominated strategies in rational MPC,” presented at the TCC 2023, Taipeh, Taiwan, 2023.
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2016 | Dissertation | LibreCat-ID: 167
P. Günther, Physical attacks on pairing-based cryptography. Universität Paderborn, 2016.
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2018 | Conference Paper | LibreCat-ID: 2862 |
J. Blömer, F. Eidens, and J. 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, San Francisco, CA, USA, 2018, pp. 470–490.
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2018 | Working Paper | LibreCat-ID: 5820
J. Blömer, J. Bobolz, C. Scheideler, and A. Setzer, Provably Anonymous Communication Based on Trusted Execution Environments. .
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2014 | Bachelorsthesis | LibreCat-ID: 369
T. Rath, RSA-Full Domain Hash Revisited. Universität Paderborn, 2014.
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2013 | Conference Paper | LibreCat-ID: 488
J. Blömer, P. Günther, and V. 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), 2013, pp. 98–105.
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2013 | Bachelorsthesis | LibreCat-ID: 487 |
J. Bobolz, Security Proofs for Pairing-Based Cryptography in the Generic Group Model. Universität Paderborn, 2013.
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2013 | Bachelorsthesis | LibreCat-ID: 486
O. Otte, Seitenkanalresistenz paarungsbasierter Kryptographie. Universität Paderborn, 2013.
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2015 | Conference Paper | LibreCat-ID: 253
J. Blömer, J. Juhnke, and N. Löken, “Short Group Signatures with Distributed Traceability,” in Proceedings of the Sixth International Conference on Mathematical Aspects of Computer and Information Sciences (MACIS), 2015, pp. 166–180.
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2017 | Conference Paper | LibreCat-ID: 2967 |
J. Blömer and G. 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), 2017, vol. 10693, pp. 438–453.
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2014 | Conference Paper | LibreCat-ID: 355
J. Blömer, P. Günther, and G. Liske, “Tampering attacks in pairing-based cryptography,” in Proceedings of Fault Tolerance and Diagnosis in Cryptography(FDTC), 2014, pp. 1--7.
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2019 | Conference Paper | LibreCat-ID: 13904 |
J. Blömer, J. Bobolz, D. P. Diemert, and F. Eidens, “Updatable Anonymous Credentials and Applications to Incentive Systems,” presented at the 26th ACM Conference on Computer and Communications Security, London, 2019, doi: 10.1145/3319535.3354223.
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2013 | Bachelorsthesis | LibreCat-ID: 471
A. Tezer, Verteilte Erstellung und Aktualisierung von Schlüsselservern in identitätsbasierten Verschlüsselungssystemen. Universität Paderborn, 2013.
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2018 | Journal Article | LibreCat-ID: 2685
J. Blömer and K. Kohn, “Voronoi Cells of Lattices with Respect to Arbitrary Norms,” SIAM Journal on Applied Algebra and Geometry., vol. 2, no. 2, pp. 314–338, 2018.
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2015 | Report | LibreCat-ID: 233 |
J. Blömer and K. Kohn, Voronoi Cells of Lattices with Respect to Arbitrary Norms. Universität Paderborn, 2015.
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