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.

On the impossibility of surviving (iterated) deletion of weakly dominated strategies in rational MPC
J. Blömer, J. Bobolz, H. Bröcher, in: 2023.

A Generic Construction of an Anonymous Reputation System and Instantiations from Lattices
J. Blömer, J. Bobolz, L.A. Porzenheim, in: 2023.

Privacy-Preserving Cryptography: Attribute-Based Signatures and Updatable Credentials
F. Eidens, Privacy-Preserving Cryptography: Attribute-Based Signatures and Updatable Credentials, 2022.

Cryptimeleon: A Library for Fast Prototyping of Privacy-Preserving Cryptographic Schemes
J. Bobolz, F. Eidens, R. Heitjohann, J. Fell, (2021).

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.

A Complexity Theoretical Study of Fuzzy K-Means
J. Blömer, S. Brauer, K. Bujna, ACM Transactions on Algorithms 16 (2020) 1–25.

Privacy-Preserving Incentive Systems with Highly Efficient Point-Collection
J. Bobolz, F. Eidens, S. Krenn, D. Slamanig, C. Striecks, in: Proceedings of the 15th ACM Asia Conference on Computer and Communications Security (ASIA CCS ’20), ACM, New York, NY, USA, 2020.

How well do SEM algorithms imitate EM algorithms? A non-asymptotic analysis for mixture models
J. Blömer, S. Brauer, K. Bujna, D. Kuntze, Advances in Data Analysis and Classification 14 (2020) 147–173.

Cryptography for the Crowd — A Study of Cryptographic Schemes with Applications to Crowd Work
N. Löken, Cryptography for the Crowd — A Study of Cryptographic Schemes with Applications to Crowd Work, 2020.

Complexity of single-swap heuristics for metric facility location and related problems
S. Brauer, Theoretical Computer Science 754 (2019) 88–106.

Personal Cross-Platform Reputation
J. Blömer, N. Löken, in: Security and Trust Management, STM 2019, 2019.

Dynamic Searchable Encryption with Access Control
J. Blömer, N. Löken, in: 12th International Symposium on Foundations and Practice of Security, FPS 2019, Springer, 2019.

Classification and Approximation of Geometric Location Problems
S. Brauer, Classification and Approximation of Geometric Location Problems, Paderborn, 2019.

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.

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.

Voronoi Cells of Lattices with Respect to Arbitrary Norms
J. Blömer, K. Kohn, SIAM Journal on Applied Algebra and Geometry. 2 (2018) 314–338.

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.

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.

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.

Coresets for Fuzzy K-Means with Applications
J. Blömer, S. Brauer, K. Bujna, in: 29th International Symposium on Algorithms and Computation  (ISAAC 2018), Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik, 2018, pp. 46:1--46:12.

Models and Constructions for Secure Reputation Systems
J. Juhnke, Models and Constructions for Secure Reputation Systems, Universität Paderborn, 2018.

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.

Delegatable Attribute-based Anonymous Credentials from Dynamically Malleable Signatures
J. Blömer, J. Bobolz, in: ACNS 2018 Applied Cryptography &; Network Security, n.d.

Soft Clustering Algorithms - Theoretical and Practical Improvements
K. Bujna, Soft Clustering Algorithms - Theoretical and Practical Improvements, Universität Paderborn, 2017.

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.

CCA-Security for Predicate Encryption Schemes
G. Liske, CCA-Security for Predicate Encryption Schemes, Universität Paderborn, 2017.

Searchable Encryption with Access Control
N. Löken, in: Proceedings of the 12th International Conference on Availability, Reliability and Security  - ARES ’17, ACM Press, 2017.

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.

Complexity of Single-Swap Heuristics for Metric Facility Location and Related Problems
S. Brauer, in: D. Fotakis, A. Pagourtzis, V.T. Paschos (Eds.), Lecture Notes in Computer Science, Springer International Publishing, Cham, 2017, pp. 116–127.

Singular Curve Point Decompression Attack
J. Blömer, P. Günther, in: 2015 Workshop on Fault Diagnosis and Tolerance in Cryptography (FDTC), IEEE, 2016.

Implementing Cryptographic Pairings on Accumulator Based Smart Card Architectures
P. Günther, V. Krummel, in: Mathematical Aspects of Computer and Information Sciences, Springer International Publishing, Cham, 2016, pp. 151–165.

Theoretical Analysis of the k-Means Algorithm – A Survey
J. Blömer, C. Lammersen, M. Schmidt, C. Sohler, in: Algorithm Engineering, Springer International Publishing, Cham, 2016, pp. 81–116.

Hard-Clustering with Gaussian Mixture Models
J. Blömer, S. Brauer, K. Bujna, (2016).

Adaptive Seeding for Gaussian Mixture Models
J. Blömer, K. Bujna, in: Advances in Knowledge Discovery and Data Mining, Springer International Publishing, Cham, 2016, pp. 296–308.

Effizienz und Sicherheit paarungsbasierter Kryptographie
J. Blömer, P. Günther, Effizienz Und Sicherheit Paarungsbasierter Kryptographie, Tagungsband des 26. Fraunhofer SIT Smartcard-Workshops, 2016.

A Theoretical Analysis of the Fuzzy K-Means Problem
J. Blömer, S. Brauer, K. Bujna, in: 2016 IEEE 16th International Conference on Data Mining (ICDM), IEEE, 2016, pp. 805–810.

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.

Physical attacks on pairing-based cryptography
P. Günther, Physical Attacks on Pairing-Based Cryptography, Universität Paderborn, 2016.

Adaptive Seeding for Gaussian Mixture Models
J. Blömer, K. Bujna, in: Advances in Knowledge Discovery and Data Mining, Springer International Publishing, Cham, 2016, pp. 296–308.

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.

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.

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.

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.

Analysis of Agglomerative Clustering
M.R. Ackermann, J. Blömer, D. Kuntze, C. Sohler, Algorithmica 69 (2014).

A Theoretical and Experimental Comparison of the EM and SEM Algorithm
J. Blömer, K. Bujna, D. Kuntze, in: 2014 22nd International Conference on Pattern Recognition, IEEE, 2014.

Constructing CCA-secure predicate encapsulation schemes from CPA-secure schemes and universal one-way hash functions
J. Blömer, G. Liske, (2014).

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.

Practical algorithms for clustering and modeling large data sets - Analysis and improvements
D. Kuntze, Practical Algorithms for Clustering and Modeling Large Data Sets - Analysis and Improvements, Universität Paderborn, 2013.

An Approach for Determining Optimal Contrast in Visual Cryptography
J. Juhnke, H. Lefmann, V. Strehl, An Approach for Determining Optimal Contrast in Visual Cryptography, Fortschritt-Berichte VDI, 2013.

Improved Side Channel Attacks on Pairing Based Cryptography
J. Blömer, P. Günther, G. Liske, in: Constructive Side-Channel Analysis and Secure Design, Springer Berlin Heidelberg, Berlin, Heidelberg, 2013, pp. 154–168.

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.

Direct Chosen-Ciphertext Secure Attribute-Based Key Encapsulations without Random Oracles
J. Blömer, G. Liske, (2013).

StreamKM++: A clustering algorithm for data streams
M.R. Ackermann, M. Märtens, C. Raupach, K. Swierkot, C. Lammersen, C. Sohler, 17 (2012).

Turing und Kryptografie
J. Blömer, Informatik-Spektrum 35 (2012).

Algorithms for lattice problems with respect to general norms
S. Naewe, Algorithms for Lattice Problems with Respect to General Norms, Universität Paderborn, 2011.

Hardness and Non-Approximability of Bregman Clustering Problems.
M.R. Ackermann, J. Blömer, C. Scholz, (2011).

How to Share a Secret
J. Blömer, in: Algorithms Unplugged, Springer Berlin Heidelberg, Berlin, Heidelberg, 2011, pp. 159–168.

Solving the Closest Vector Problem with respect to Lp Norms
J. Blömer, S. Naewe, ArXiv:1104.3720 (2011).

Bregman Clustering for Separable Instances
M.R. Ackermann, J. Blömer, in: SWAT 2010, Springer Berlin Heidelberg, Berlin, Heidelberg, 2010, pp. 212–223.

Clustering for Metric and Nonmetric Distance Measures
M.R. Ackermann, J. Blömer, C. Sohler, ACM Trans. Algorithms (2010) 59:1--59:26.

On the initialization of dynamic models for speech features
A. Krueger, V. Leutnant, R. Haeb-Umbach, M. Ackermann, J. Blömer, Proc. of ITG Fachtagung Sprachkommunikation. ITG, Bochum, Germany (2010).

Efficient and Compact CCA Security from Partitioned IBKEM
J. Schrieb, (2010).

Engineering self-coordinating software intensive systems
W. Schäfer, A. Trächtler, M. Birattari, J. Blömer, M. Dorigo, G. Engels, R. O’Grady, M. Platzner, F. Rammig, W. Reif, in: Proceedings of the FSE/SDP Workshop on Future of Software Engineering Research - FoSER ’10, ACM Press, 2010.

Algorithms for the Bregman k-Median Problem
M.R. Ackermann, Algorithms for the Bregman K-Median Problem, Universität Paderborn, 2009.

Coresets and Approximate Clustering for Bregman Divergences
M.R. Ackermann, J. Blömer, in: Proceedings of the Twentieth Annual ACM-SIAM Symposium on Discrete Algorithms, Society for Industrial and Applied Mathematics, Philadelphia, PA, 2009, pp. 1088–1097.

Sampling methods for shortest vectors, closest vectors and successive minima
J. Blömer, S. Naewe, Theoretical Computer Science (2009) 1648–1665.

Three-Valued Spotlight Abstractions
J. Schrieb, H. Wehrheim, D. Wonisch, in: FM 2009: Formal Methods, Springer Berlin Heidelberg, Berlin, Heidelberg, 2009, pp. 106–122.

Reliable Evidence of Data Integrity from an Untrusted Storage Service
C. Stern, P. Adelt, V. Krummel, M.R. Ackermann, in: Fourth International Conference on Networking and Services (Icns 2008), IEEE, 2008.

Tamper Resistance of AES -- Models, Attacks and Countermeasures
V. Krummel, Tamper Resistance of AES -- Models, Attacks and Countermeasures, Universität Paderborn, 2007.

Analysis of Countermeasures Against Access Driven Cache Attacks on AES
J. Blömer, V. Krummel, in: Selected Areas in Cryptography, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 96–109.

Cryptanalysis of Unbalanced RSA with Small CRT-Exponent
A. May, in: Advances in Cryptology — CRYPTO 2002, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 242–256.

Low Secret Exponent RSA Revisited
J. Blömer, A. May, in: Lecture Notes in Computer Science, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 4–19.

Key Revocation with Interval Cover Families
J. Blömer, A. May, in: Selected Areas in Cryptography, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 325–341.

Dimension Reduction Methods for Convolution Modular Lattices
A. May, J.H. Silverman, in: Lecture Notes in Computer Science, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 110–125.

A Probabilistic Zero-Test for Expressions Involving Roots of Rational Numbers
J. Blömer, in: Algorithms — ESA’ 98, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 151–162.

Randomness and Secrecy - A Brief Introduction
J. Blömer, Journal of Universal Computer Science (J.UCS) (2006) 654--671.

Fault Based Collision Attacks on AES
J. Blömer, V. Krummel, in: Lecture Notes in Computer Science, Springer Berlin Heidelberg, Berlin, Heidelberg, 2006, pp. 106–120.

Wagner’s Attack on a Secure CRT-RSA Algorithm Reconsidered
J. Blömer, M. Otto, in: Lecture Notes in Computer Science, Springer Berlin Heidelberg, Berlin, Heidelberg, 2006, pp. 13–23.

Sign Change Fault Attacks on Elliptic Curve Cryptosystems
J. Blömer, M. Otto, J.-P. Seifert, in: Lecture Notes in Computer Science, Springer Berlin Heidelberg, Berlin, Heidelberg, 2006, pp. 36–52.

Fault Attacks and Countermeasures
M. Otto, Fault Attacks and Countermeasures, Universität Paderborn, 2005.

A Tool Kit for Finding Small Roots of Bivariate Polynomials over the Integers
J. Blömer, A. May, in: EUROCRYPT 2005, Springer Berlin Heidelberg, Berlin, Heidelberg, 2005, pp. 251–267.

Partial Key Exposure Attacks on RSA up to Full Size Exponents
M. Ernst, E. Jochemsz, A. May, B. de Weger, in: EUROCRYPT 2005, Springer Berlin Heidelberg, Berlin, Heidelberg, 2005, pp. 371–386.

Provably Secure Masking of AES
J. Blömer, J. Guajardo, V. Krummel, in: Selected Areas in Cryptography, Springer Berlin Heidelberg, Berlin, Heidelberg, 2004, pp. 69–83.

A Generalized Wiener Attack on RSA
J. Blömer, A. May, in: Public Key Cryptography – PKC 2004, Springer Berlin Heidelberg, Berlin, Heidelberg, 2004, pp. 1–13.

Secret Exponent Attacks on RSA-type Schemes with Moduli N=p^rq
A. May, in: Public Key Cryptography – PKC 2004, Springer Berlin Heidelberg, Berlin, Heidelberg, 2004, pp. 218–230.

Computing the RSA Secret Key Is Deterministic Polynomial Time Equivalent to Factoring
A. May, in: Advances in Cryptology – CRYPTO 2004, Springer Berlin Heidelberg, Berlin, Heidelberg, 2004, pp. 213–219.

A new CRT-RSA algorithm secure against bellcore attacks
J. Blömer, M. Otto, J.-P. Seifert, in: Proceedings of the 10th ACM Conference on Computer and Communication Security  - CCS ’03, ACM Press, 2004.

New RSA Vulnerabilities Using Lattice Reduction Methods
A. May, New RSA Vulnerabilities Using Lattice Reduction Methods, Universität Paderborn, 2003.

New Partial Key Exposure Attacks on RSA
J. Blömer, A. May, in: Advances in Cryptology - CRYPTO 2003, Springer Berlin Heidelberg, Berlin, Heidelberg, 2003, pp. 27–43.

Fault Based Cryptanalysis of the Advanced Encryption Standard (AES)
J. Blömer, J.-P. Seifert, in: Financial Cryptography, Springer Berlin Heidelberg, Berlin, Heidelberg, 2003, pp. 162–181.

Priority encoding transmission
A. Albanese, J. Blömer, J. Edmonds, M. Luby, M. Sudan, IEEE Transactions on Information Theory 42 (2002) 1737–1744.

Priority encoding transmission
A. Albanese, J. Blömer, J. Edmonds, M. Luby, M. Sudan, in: Proceedings 35th Annual Symposium on Foundations of Computer Science, IEEE Comput. Soc. Press, 2002.

Computing sums of radicals in polynomial time
J. Blömer, in: [1991] Proceedings 32nd Annual Symposium of Foundations of Computer Science, IEEE Comput. Soc. Press, 2002.

Denesting by Bounded Degree Radicals
J. Blömer, Algorithmica 28 (2002) 2–15.

Closest Vectors, Successive Minima, and Dual HKZ-Bases of Lattices
J. Blömer, in: Automata, Languages and Programming, Springer Berlin Heidelberg, Berlin, Heidelberg, 2000, pp. 248–259.

On the complexity of computing short linearly independent vectors and short bases in a lattice
J. Blömer, J.-P. Seifert, in: Proceedings of the Thirty-First Annual ACM Symposium on Theory of Computing  - STOC ’99, ACM Press, 1999.

A lower bound for a class of graph based loss resilient codes
J. Blömer, B. Trachsler, Technical Report/Departement of Computer Science, ETH Zürich (1998).

Denesting by bounded degree radicals
J. Blömer, in: Algorithms — ESA ’97, Springer Berlin Heidelberg, Berlin, Heidelberg, 1997, pp. 53–63.

The rank of sparse random matrices over finite fields
J. Blömer, R. Karp, E. Welzl, Random Structures \'26; Algorithms (1997) 407–419.