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44 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.
2015 | Mastersthesis | LibreCat-ID: 325
A Group Signature Scheme with Distributed Group Management - An Application of Threshold Encryption
N. Löken, A Group Signature Scheme with Distributed Group Management - An Application of Threshold Encryption, Universität Paderborn, 2015.
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N. Löken, A Group Signature Scheme with Distributed Group Management - An Application of Threshold Encryption, Universität Paderborn, 2015.
2014 | Conference Paper | LibreCat-ID: 463
A Practical Second-Order Fault Attack against a Real-World Pairing Implementation
J. Blömer, R. Gomes da Silva, P. Günther, J. Krämer, J.-P. Seifert, in: Proceedings of Fault Tolerance and Diagnosis in Cryptography(FDTC), 2014, pp. 123--136.
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J. Blömer, R. Gomes da Silva, P. Günther, J. Krämer, J.-P. Seifert, in: Proceedings of Fault Tolerance and Diagnosis in Cryptography(FDTC), 2014, pp. 123--136.
2015 | Conference Paper | LibreCat-ID: 322 |
Anonymous and Publicly Linkable Reputation Systems
J. Blömer, J. Juhnke, C. Kolb, in: Proceedings of the 18th International Conference on Financial Cryptography and Data Security (FC), 2015, pp. 478--488.
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J. Blömer, J. Juhnke, C. Kolb, in: Proceedings of the 18th International Conference on Financial Cryptography and Data Security (FC), 2015, pp. 478--488.
2015 | Mastersthesis | LibreCat-ID: 321
Anonymous credential system based on q-Strong Diffie-Hellman Assumption
F. Eidens, Anonymous Credential System Based on Q-Strong Diffie-Hellman Assumption, Universität Paderborn, 2015.
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F. Eidens, Anonymous Credential System Based on Q-Strong Diffie-Hellman Assumption, Universität Paderborn, 2015.
2013 | Bachelorsthesis | LibreCat-ID: 553
Attributbasierte Verschlüsselung mittels Gittermethoden - Mathematische Grundlagen, Verfahren und Sicherheitsbeweise
K. Kohn, Attributbasierte Verschlüsselung mittels Gittermethoden - Mathematische Grundlagen, Verfahren und Sicherheitsbeweise, Universität Paderborn, 2013.
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K. Kohn, Attributbasierte Verschlüsselung mittels Gittermethoden - Mathematische Grundlagen, Verfahren und Sicherheitsbeweise, Universität Paderborn, 2013.
2017 | Conference Paper | LibreCat-ID: 2344 |
Attribute-Based Encryption as a Service for Access Control in Large-Scale Organizations
J. Blömer, P. Günther, V. Krummel, N. Löken, in: Foundations and Practice of Security, Springer International Publishing, Cham, 2017, pp. 3–17.
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J. Blömer, P. Günther, V. Krummel, N. Löken, in: Foundations and Practice of Security, Springer International Publishing, Cham, 2017, pp. 3–17.
2012 | Bachelorsthesis | LibreCat-ID: 629
Attribute-basierte Verschlüsselung
P. Schleiter, Attribute-basierte Verschlüsselung, Universität Paderborn, 2012.
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P. Schleiter, Attribute-basierte Verschlüsselung, Universität Paderborn, 2012.
2017 | Dissertation | LibreCat-ID: 116
CCA-Security for Predicate Encryption Schemes
G. Liske, CCA-Security for Predicate Encryption Schemes, Universität Paderborn, 2017.
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G. Liske, CCA-Security for Predicate Encryption Schemes, Universität Paderborn, 2017.
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.
2014 | Preprint | LibreCat-ID: 442 |
Constructing CCA-secure predicate encapsulation schemes from CPA-secure schemes and universal one-way hash functions
J. Blömer, G. Liske, (2014).
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J. Blömer, G. Liske, (2014).
2016 | Conference Paper | LibreCat-ID: 208
Construction of Fully CCA-Secure Predicate Encryptions from Pair Encoding Schemes
J. Blömer, G. Liske, in: Proceedings of the CT-RSA 2016, 2016, pp. 431–447.
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J. Blömer, G. Liske, in: Proceedings of the CT-RSA 2016, 2016, pp. 431–447.
2015 | Mastersthesis | LibreCat-ID: 312
Constructions of Fully Secure Predicate Encryption Schemes
P. Schleiter, Constructions of Fully Secure Predicate Encryption Schemes, Universität Paderborn, 2015.
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P. Schleiter, Constructions of Fully Secure Predicate Encryption Schemes, Universität Paderborn, 2015.
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).
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.
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.
2013 | Preprint | LibreCat-ID: 538 |
Direct Chosen-Ciphertext Secure Attribute-Based Key Encapsulations without Random Oracles
J. Blömer, G. Liske, (2013).
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J. Blömer, G. Liske, (2013).
2015 | Mastersthesis | LibreCat-ID: 301 |
Efficient Verifier-Local Revocation for Anonymous Credentials
J. Bobolz, Efficient Verifier-Local Revocation for Anonymous Credentials, Universität Paderborn, 2015.
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J. Bobolz, Efficient Verifier-Local Revocation for Anonymous Credentials, Universität Paderborn, 2015.
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.
2011 | Mastersthesis | LibreCat-ID: 659
Fault attacks in pairing-based cryptography
G. Liske, Fault Attacks in Pairing-Based Cryptography, Universität Paderborn, 2011.
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G. Liske, Fault Attacks in Pairing-Based Cryptography, Universität Paderborn, 2011.
2014 | Bachelorsthesis | LibreCat-ID: 421
Fujisaki-Okamoto Transformation
J. Lippert, Fujisaki-Okamoto Transformation, Universität Paderborn, 2014.
LibreCat
J. Lippert, Fujisaki-Okamoto Transformation, Universität Paderborn, 2014.
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.
2014 | Mastersthesis | LibreCat-ID: 414
Hiding software components using functional encryption
J. Jochheim, Hiding Software Components Using Functional Encryption, Universität Paderborn, 2014.
LibreCat
J. Jochheim, Hiding Software Components Using Functional Encryption, Universität Paderborn, 2014.
2012 | Bachelorsthesis | LibreCat-ID: 607
Identitätsbasierte Kryptographie - Implementierung von Paarungen für Körper der Charakteristik 2
T. Haarhoff, Identitätsbasierte Kryptographie - Implementierung von Paarungen für Körper der Charakteristik 2, Universität Paderborn, 2012.
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T. Haarhoff, Identitätsbasierte Kryptographie - Implementierung von Paarungen für Körper der Charakteristik 2, Universität Paderborn, 2012.
2012 | Bachelorsthesis | LibreCat-ID: 606
Identitätsbasierte Signaturen - Ein Sicherheitsbeweis für Signaturen auf Grundlage von Gap-Diffie-Hellman-Gruppen mit Hilfe des Forking-Lemmas
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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N. Löken, Identitätsbasierte Signaturen - Ein Sicherheitsbeweis für Signaturen auf Grundlage von Gap-Diffie-Hellman-Gruppen mit Hilfe des Forking-Lemmas, Universität Paderborn, 2012.
2015 | Bachelorsthesis | LibreCat-ID: 286
Implementierung eines hybriden Verschlüsselungsverfahrens nach Cramer und Shoup
B. Kalde, Implementierung eines hybriden Verschlüsselungsverfahrens nach Cramer und Shoup, Universität Paderborn, 2015.
LibreCat
B. Kalde, Implementierung eines hybriden Verschlüsselungsverfahrens nach Cramer und Shoup, Universität Paderborn, 2015.
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.
2018 | Dissertation | LibreCat-ID: 6597
Models and Constructions for Secure Reputation Systems
J. Juhnke, Models and Constructions for Secure Reputation Systems, Universität Paderborn, 2018.
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J. Juhnke, Models and Constructions for Secure Reputation Systems, Universität Paderborn, 2018.
2015 | Mastersthesis | LibreCat-ID: 273
Number of Voronoi-relevant vectors in lattices with respect to arbitrary norms
K. Kohn, Number of Voronoi-Relevant Vectors in Lattices with Respect to Arbitrary Norms, Universität Paderborn, 2015.
LibreCat
K. Kohn, Number of Voronoi-Relevant Vectors in Lattices with Respect to Arbitrary Norms, Universität Paderborn, 2015.
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.
2016 | Dissertation | LibreCat-ID: 167
Physical attacks on pairing-based cryptography
P. Günther, Physical Attacks on Pairing-Based Cryptography, Universität Paderborn, 2016.
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P. Günther, Physical Attacks on Pairing-Based Cryptography, Universität Paderborn, 2016.
2018 | Conference Paper | LibreCat-ID: 2862 |
Practical, Anonymous, and Publicly Linkable Universally-Composable Reputation Systems
J. Blömer, F. Eidens, J. Juhnke, in: Topics in Cryptology - {CT-RSA} 2018 - The Cryptographers’ Track at the {RSA} Conference 2018, Proceedings, Springer International Publishing, Cham, 2018, pp. 470–490.
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J. Blömer, F. Eidens, J. Juhnke, in: Topics in Cryptology - {CT-RSA} 2018 - The Cryptographers’ Track at the {RSA} Conference 2018, Proceedings, Springer International Publishing, Cham, 2018, pp. 470–490.
2018 | Working Paper | LibreCat-ID: 5820
Provably Anonymous Communication Based on Trusted Execution Environments
J. Blömer, J. Bobolz, C. Scheideler, A. Setzer, Provably Anonymous Communication Based on Trusted Execution Environments, n.d.
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J. Blömer, J. Bobolz, C. Scheideler, A. Setzer, Provably Anonymous Communication Based on Trusted Execution Environments, n.d.
2014 | Bachelorsthesis | LibreCat-ID: 369
RSA-Full Domain Hash Revisited
T. Rath, RSA-Full Domain Hash Revisited, Universität Paderborn, 2014.
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T. Rath, RSA-Full Domain Hash Revisited, Universität Paderborn, 2014.
2013 | Conference Paper | LibreCat-ID: 488
Securing Critical Unattended Systems with Identity Based Cryptography - A Case Study
J. Blömer, P. Günther, V. Krummel, in: Proceedings of the 5th International Conference on Mathematical Aspects of Computer and Information Sciences (MACIS), 2013, pp. 98–105.
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J. Blömer, P. Günther, V. Krummel, in: Proceedings of the 5th International Conference on Mathematical Aspects of Computer and Information Sciences (MACIS), 2013, pp. 98–105.
2013 | Bachelorsthesis | LibreCat-ID: 487 |
Security Proofs for Pairing-Based Cryptography in the Generic Group Model
J. Bobolz, Security Proofs for Pairing-Based Cryptography in the Generic Group Model, Universität Paderborn, 2013.
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J. Bobolz, Security Proofs for Pairing-Based Cryptography in the Generic Group Model, Universität Paderborn, 2013.
2013 | Bachelorsthesis | LibreCat-ID: 486
Seitenkanalresistenz paarungsbasierter Kryptographie
O. Otte, Seitenkanalresistenz paarungsbasierter Kryptographie, Universität Paderborn, 2013.
LibreCat
O. Otte, Seitenkanalresistenz paarungsbasierter Kryptographie, Universität Paderborn, 2013.
2015 | Conference Paper | LibreCat-ID: 253
Short Group Signatures with Distributed Traceability
J. Blömer, J. Juhnke, N. Löken, in: Proceedings of the Sixth International Conference on Mathematical Aspects of Computer and Information Sciences (MACIS), 2015, pp. 166–180.
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J. Blömer, J. Juhnke, N. Löken, in: Proceedings of the Sixth International Conference on Mathematical Aspects of Computer and Information Sciences (MACIS), 2015, pp. 166–180.
2017 | Conference Paper | LibreCat-ID: 2967 |
Subtleties in Security Definitions for Predicate Encryption with Public Index
J. Blömer, G. Liske, in: Proceedings of the International Conference of Mathematical Aspects of Computer and Information Sciences (MACIS), Springer International Publishing, Cham, 2017, pp. 438–453.
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J. Blömer, G. Liske, in: Proceedings of the International Conference of Mathematical Aspects of Computer and Information Sciences (MACIS), Springer International Publishing, Cham, 2017, pp. 438–453.
2014 | Conference Paper | LibreCat-ID: 355
Tampering attacks in pairing-based cryptography
J. Blömer, P. Günther, G. Liske, in: Proceedings of Fault Tolerance and Diagnosis in Cryptography(FDTC), 2014, pp. 1--7.
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J. Blömer, P. Günther, G. Liske, in: Proceedings of Fault Tolerance and Diagnosis in Cryptography(FDTC), 2014, pp. 1--7.
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.
2013 | Bachelorsthesis | LibreCat-ID: 471
Verteilte Erstellung und Aktualisierung von Schlüsselservern in identitätsbasierten Verschlüsselungssystemen
A. Tezer, Verteilte Erstellung und Aktualisierung von Schlüsselservern in identitätsbasierten Verschlüsselungssystemen, Universität Paderborn, 2013.
LibreCat
A. Tezer, Verteilte Erstellung und Aktualisierung von Schlüsselservern in identitätsbasierten Verschlüsselungssystemen, Universität Paderborn, 2013.
2018 | Journal Article | LibreCat-ID: 2685
Voronoi Cells of Lattices with Respect to Arbitrary Norms
J. Blömer, K. Kohn, SIAM Journal on Applied Algebra and Geometry. 2 (2018) 314–338.
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J. Blömer, K. Kohn, SIAM Journal on Applied Algebra and Geometry. 2 (2018) 314–338.
2015 | Report | LibreCat-ID: 233 |
Voronoi Cells of Lattices with Respect to Arbitrary Norms
J. Blömer, K. Kohn, Voronoi Cells of Lattices with Respect to Arbitrary Norms, Universität Paderborn, 2015.
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J. Blömer, K. Kohn, Voronoi Cells of Lattices with Respect to Arbitrary Norms, Universität Paderborn, 2015.
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