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76 Publications
2023 | Mastersthesis | LibreCat-ID: 40440
M. Pilot, Updatable Privacy-Preserving Reputation System based on Blockchain. 2023.
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2023 | Mastersthesis | LibreCat-ID: 43374 | 
P. Schürmann, A Formal Comparison of Advanced Digital Signature Primitives. 2023.
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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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2023 | Bachelorsthesis | LibreCat-ID: 43375 |
A. Koch, Privacy-Preserving Collection and Evaluation of Log Files. 2023.
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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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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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2022 | Bachelorsthesis | LibreCat-ID: 32399
E. Vahle, Modelling and Proving Security for a Secure MPC Protocol for Stable Matching. 2022.
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2022 | Bachelorsthesis | LibreCat-ID: 32398
H. Siek, Bringing Structure to Structure-Preserving Signatures: Overview, Implementation and Comparison of Selected SPS Schemes. 2022.
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2022 | Mastersthesis | LibreCat-ID: 31485
P. Kramer, On Transforming Lattice-Based Cryptography to the Ring Setting. 2022.
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2022 | Bachelorsthesis | LibreCat-ID: 34962
A. Anonymous, Evaluating database systems relying on secure multiparty computation. 2022.
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2022 | Mastersthesis | LibreCat-ID: 34963
A. Anonymous, Cost of Privacy-preserving SMPC Protocols for NN-Based Inference. 2022.
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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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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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2020 | Bachelorsthesis | LibreCat-ID: 18637 |
P. Schürmann, 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
T. Terfort, Enhancing Security by Usage of Universal One-Way Hash Functions. Universität Paderborn, 2020.
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2020 | Conference Paper | LibreCat-ID: 16487 |
J. Bobolz, F. Eidens, S. Krenn, D. Slamanig, and C. 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), Taiwan, 2020.
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2020 | Bachelorsthesis | LibreCat-ID: 18638
P. Kramer, Comparison of Zero-Knowledge Range Proofs. Universität Paderborn, 2020.
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2019 | Mastersthesis | LibreCat-ID: 13128 |
H. Bröcher, Rational Secure Multiparty Computation. Universität Paderborn, 2019.
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2019 | Bachelorsthesis | LibreCat-ID: 13592
M. Pilot, Efficient Finite-Field Arithmetic for Elliptic Curve Cryptography in Java. Universität Paderborn, 2019.
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2019 | Mastersthesis | LibreCat-ID: 13648 |
S. Scholz, Implementation and Comparison of Elliptic Curve Algorithms in Java. Universität Paderborn, 2019.
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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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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 | 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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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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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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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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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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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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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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2017 | Dissertation | LibreCat-ID: 116
G. Liske, CCA-Security for Predicate Encryption Schemes. Universität Paderborn, 2017.
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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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2017 | Mastersthesis | LibreCat-ID: 60
D. Niehus, Semantically Secure Attribute-based Searchable Encryption. Universität Paderborn, 2017.
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2017 | Bachelorsthesis | LibreCat-ID: 88
A. Ganesh Athreya, Instantiating a Predicate Encryption Scheme via Pair Encodings. Universität Paderborn, 2017.
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2017 | Bachelorsthesis | LibreCat-ID: 67
M. Jürgens, Provably Secure Key-Derivation-Functions for Certain Types of Applications. Universität Paderborn, 2017.
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2017 | Bachelorsthesis | LibreCat-ID: 104
D. Diemert, EAX - An Authenticated Encryption Mode for Block Ciphers. Universität Paderborn, 2017.
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2017 | Mastersthesis | LibreCat-ID: 117
P. Bemmann, Attribute-based Signatures using Structure Preserving Signatures. Universität Paderborn, 2017.
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2016 | Bachelorsthesis | LibreCat-ID: 213
L. Porzenheim, Comparison of different Definitions of Chosen-Ciphertext Security in Encryption schemes. Universität Paderborn, 2016.
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2016 | Bachelorsthesis | LibreCat-ID: 214
K. S. Bemmann, Commitment Schemes - Definitions, Variants, and Security. Universität Paderborn, 2016.
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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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2016 | Dissertation | LibreCat-ID: 167
P. Günther, Physical attacks on pairing-based cryptography. Universität Paderborn, 2016.
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2016 | Mastersthesis | LibreCat-ID: 146
J. Hamm, Symmetric Anonymous Credentials with Protocols for Relations on Attributes. Universität Paderborn, 2016.
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2016 | Bachelorsthesis | LibreCat-ID: 152
F. Dallmeier, Short Randomizable Aggregatable Signatures: Constructions and Security Analysis. Universität Paderborn, 2016.
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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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2015 | Bachelorsthesis | LibreCat-ID: 286
B. Kalde, Implementierung eines hybriden Verschlüsselungsverfahrens nach Cramer und Shoup. Universität Paderborn, 2015.
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2015 | Bachelorsthesis | LibreCat-ID: 261
T. Eisenhofer, Protokolle zur authentifizierten Schüsselvereinbarung. Universität Paderborn, 2015.
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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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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: 325
N. Löken, 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
F. Heihoff, A group signature scheme based on the LSRW assumption. Universität Paderborn, 2015.
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2015 | Mastersthesis | LibreCat-ID: 297
M. Sosniak, Evaluation of Pairing Optimization for Embedded Platforms. Universität Paderborn, 2015.
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2015 | Mastersthesis | LibreCat-ID: 299
B. Gerken, Elektromagnetische Seitenkanalangriffe auf paarungsbasierte Kryptographie. Universität Paderborn, 2015.
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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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2015 | Mastersthesis | LibreCat-ID: 302
C. Stroh, Efficient Attributes for Pairing-Based Anonymous Credentials. Universität Paderborn, 2015.
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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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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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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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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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2014 | Bachelorsthesis | LibreCat-ID: 369
T. Rath, RSA-Full Domain Hash Revisited. Universität Paderborn, 2014.
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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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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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2014 | Mastersthesis | LibreCat-ID: 414
J. Jochheim, Hiding software components using functional encryption. Universität Paderborn, 2014.
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2014 | Bachelorsthesis | LibreCat-ID: 416
P. Bemmann, Group Signature Schemes with Strong Exculpability. Universität Paderborn, 2014.
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2014 | Bachelorsthesis | LibreCat-ID: 421
J. Lippert, Fujisaki-Okamoto Transformation. Universität Paderborn, 2014.
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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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2013 | Bachelorsthesis | LibreCat-ID: 486
O. Otte, Seitenkanalresistenz paarungsbasierter Kryptographie. Universität Paderborn, 2013.
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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 | 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 | 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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2013 | Bachelorsthesis | LibreCat-ID: 553
K. Kohn, Attributbasierte Verschlüsselung mittels Gittermethoden - Mathematische Grundlagen, Verfahren und Sicherheitsbeweise. Universität Paderborn, 2013.
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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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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: 629
P. Schleiter, Attribute-basierte Verschlüsselung. Universität Paderborn, 2012.
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2011 | Mastersthesis | LibreCat-ID: 659
G. Liske, Fault attacks in pairing-based cryptography. Universität Paderborn, 2011.
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2009 | Bachelorsthesis | LibreCat-ID: 2896 |
G. Liske, Analyse und Evaluation eines identitätsbasierten Signcryption-Verfahrens. 2009.
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