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.
LibreCat: /record/44855

J. Blömer, J. Bobolz, F. Eidens, T. Jager, and P. Kramer, “Practical Cryptograhic Techniques for Secure and Privacy-Preserving Customer Loyalty Systems,” in On-The-Fly Computing -- Individualized IT-services in dynamic markets, vol. 412, C.-J. Haake, F. Meyer auf der Heide, M. Platzner, H. Wachsmuth, and H. Wehrheim, Eds. Paderborn: Heinz Nixdorf Institut, Universität Paderborn, 2023, pp. 237–246.
LibreCat: /record/45901
DOI: 10.5281/zenodo.8068755

J. Blömer, F. Eidens, T. Jager, D. Niehues, and C. Scheideler, “Robustness and Security,” in On-The-Fly Computing -- Individualized IT-services in dynamic markets, vol. 412, C.-J. Haake, F. Meyer auf der Heide, M. Platzner, H. Wachsmuth, and H. Wehrheim, Eds. Paderborn: Heinz Nixdorf Institut, Universität Paderborn, 2023, pp. 145–164.
LibreCat: /record/45891
DOI: 10.5281/zenodo.8068629

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.
LibreCat: /record/35014

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.
LibreCat: /record/43458

J. Blömer, S. Brauer, and K. Bujna, “A Complexity Theoretical Study of Fuzzy K-Means,” ACM Transactions on Algorithms, vol. 16, no. 4, pp. 1–25, 2020.
LibreCat: /record/20888
DOI: 10.1145/3409385

J. Blömer, S. Brauer, K. Bujna, and D. Kuntze, “How well do SEM algorithms imitate EM algorithms? A non-asymptotic analysis for mixture models,” Advances in Data Analysis and Classification, vol. 14, pp. 147–173, 2020.
LibreCat: /record/10790
DOI: 10.1007/s11634-019-00366-7

J. Blömer and N. Löken, “Personal Cross-Platform Reputation,” in Security and Trust Management, STM 2019, 2019, vol. 11738.
LibreCat: /record/13554
DOI: 10.1007/978-3-030-31511-5_9

J. Blömer and N. Löken, “Dynamic Searchable Encryption with Access Control,” in 12th International Symposium on Foundations and Practice of Security, FPS 2019, 2019, vol. 12056.
LibreCat: /record/13557

J. Blömer, J. Bobolz, D. P. Diemert, and F. Eidens, “Updatable Anonymous Credentials and Applications to Incentive Systems,”10.1145/3319535.3354223__presented at the 26th ACM Conference on Computer and Communications Security, London, 2019, doi:10.1145/3319535.3354223 .
LibreCat: /record/13904
DOI: 10.1145/3319535.3354223

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.
LibreCat: /record/2862
DOI: 10.1007/978-3-319-76953-0_25

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.
LibreCat: /record/2685
DOI: 10.1137/17M1132045

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.
LibreCat: /record/3265
DOI: 10.1145/3230833.3234517

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.
LibreCat: /record/2965
DOI: 10.1145/3230833.3230853

J. Blömer, J. Bobolz, C. Scheideler, and A. Setzer, Provably Anonymous Communication Based on Trusted Execution Environments. .
LibreCat: /record/5820

J. Blömer, S. Brauer, and K. Bujna, “Coresets for Fuzzy K-Means with Applications,” in 29th International Symposium on Algorithms and Computation  (ISAAC 2018), Jiaoxi, Yilan County, Taiwan, 2018, pp. 46:1--46:12.
LibreCat: /record/4344
DOI: 10.4230/LIPIcs.ISAAC.2018.46

J. Blömer, F. Eidens, and J. Juhnke, “Enhanced Security of Attribute-Based Signatures,”10.1007/978-3-030-00434-7_12__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 .
LibreCat: /record/3873
DOI: 10.1007/978-3-030-00434-7_12

J. Blömer and J. Bobolz, “Delegatable Attribute-based Anonymous Credentials from Dynamically Malleable Signatures,”10.1007/978-3-319-93387-0_12__presented at the The 16th International Conference on Applied Cryptography and Network Security, Leuven, Belgium, doi:10.1007/978-3-319-93387-0_12 .
LibreCat: /record/2379
DOI: 10.1007/978-3-319-93387-0_12

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.
LibreCat: /record/2967
DOI: 10.1007/978-3-319-72453-9_35

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.
LibreCat: /record/2344
DOI: 10.1007/978-3-319-75650-9_1

J. Blömer and P. Günther, “Singular Curve Point Decompression Attack,” in 2015 Workshop on Fault Diagnosis and Tolerance in Cryptography (FDTC), 2016.
LibreCat: /record/2947
DOI: 10.1109/fdtc.2015.17

J. Blömer, C. Lammersen, M. Schmidt, and C. Sohler, “Theoretical Analysis of the k-Means Algorithm – A Survey,” in Algorithm Engineering, Cham: Springer International Publishing, 2016, pp. 81–116.
LibreCat: /record/2968
DOI: 10.1007/978-3-319-49487-6_3

J. Blömer, S. Brauer, and K. Bujna, “Hard-Clustering with Gaussian Mixture Models.” Computing Research Repository, 2016.
LibreCat: /record/2969

J. Blömer and K. Bujna, “Adaptive Seeding for Gaussian Mixture Models,” in Advances in Knowledge Discovery and Data Mining, Cham: Springer International Publishing, 2016, pp. 296–308.
LibreCat: /record/2970
DOI: 10.1007/978-3-319-31750-2_24

J. Blömer and P. Günther, Effizienz und Sicherheit paarungsbasierter Kryptographie. Tagungsband des 26. Fraunhofer SIT Smartcard-Workshops, 2016.
LibreCat: /record/2971

J. Blömer, S. Brauer, and K. Bujna, “A Theoretical Analysis of the Fuzzy K-Means Problem,” in 2016 IEEE 16th International Conference on Data Mining (ICDM), Barcelona, Spain, 2016, pp. 805–810.
LibreCat: /record/2367
DOI: 10.1109/icdm.2016.0094

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.
LibreCat: /record/208
DOI: 10.1007/978-3-319-29485-8_25

J. Blömer and K. Bujna, “Adaptive Seeding for Gaussian Mixture Models,” in Advances in Knowledge Discovery and Data Mining, Cham: Springer International Publishing, 2016, pp. 296–308.
LibreCat: /record/2978
DOI: 10.1007/978-3-319-31750-2_24

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.
LibreCat: /record/253
DOI: 10.1007/978-3-319-32859-1_14

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.
LibreCat: /record/322
DOI: 10.1007/978-3-662-47854-7_29

J. Blömer and K. Kohn, Voronoi Cells of Lattices with Respect to Arbitrary Norms. Universität Paderborn, 2015.
LibreCat: /record/233

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.
LibreCat: /record/355
DOI: 10.1109/FDTC.2014.10

M. R. Ackermann, J. Blömer, D. Kuntze, and C. Sohler, “Analysis of Agglomerative Clustering,” Algorithmica, vol. 69, 2014.
LibreCat: /record/2976
DOI: 10.1007/s00453-012-9717-4

J. Blömer, K. Bujna, and D. Kuntze, “A Theoretical and Experimental Comparison of the EM and SEM Algorithm,” in 2014 22nd International Conference on Pattern Recognition, 2014.
LibreCat: /record/2977
DOI: 10.1109/icpr.2014.253

J. Blömer and G. Liske, “Constructing CCA-secure predicate encapsulation schemes from CPA-secure schemes and universal one-way hash functions.” Universität Paderborn, 2014.
LibreCat: /record/442

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.
LibreCat: /record/463
DOI: 10.1109/FDTC.2014.22

J. Blömer, P. Günther, and G. Liske, “Improved Side Channel Attacks on Pairing Based Cryptography,” in Constructive Side-Channel Analysis and Secure Design, Berlin, Heidelberg: Springer Berlin Heidelberg, 2013, pp. 154–168.
LibreCat: /record/2979
DOI: 10.1007/978-3-642-40026-1_10

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.
LibreCat: /record/488

J. Blömer and G. Liske, “Direct Chosen-Ciphertext Secure Attribute-Based Key Encapsulations without Random Oracles.” Universität Paderborn, 2013.
LibreCat: /record/538

J. Blömer, “Turing und Kryptografie,” Informatik-Spektrum, vol. 35, no. 4, 2012.
LibreCat: /record/2984
DOI: 10.1007/s00287-012-0622-7

M. R. Ackermann, J. Blömer, and C. Scholz, “Hardness and Non-Approximability of Bregman Clustering Problems.” 2011.
LibreCat: /record/2985

J. Blömer, “How to Share a Secret,” in Algorithms Unplugged, Berlin, Heidelberg: Springer Berlin Heidelberg, 2011, pp. 159–168.
LibreCat: /record/2986
DOI: 10.1007/978-3-642-15328-0_17

J. Blömer and S. Naewe, “Solving the Closest Vector Problem with respect to Lp Norms,” arXiv:1104.3720. 2011.
LibreCat: /record/2987

M. R. Ackermann and J. Blömer, “Bregman Clustering for Separable Instances,” in SWAT 2010, Berlin, Heidelberg: Springer Berlin Heidelberg, 2010, pp. 212–223.
LibreCat: /record/2988
DOI: 10.1007/978-3-642-13731-0_21

M. R. Ackermann, J. Blömer, and C. Sohler, “Clustering for Metric and Nonmetric Distance Measures,” ACM Trans. Algorithms, no. 4, pp. 59:1--59:26, 2010.
LibreCat: /record/2990
DOI: 10.1145/1824777.1824779

A. Krueger, V. Leutnant, R. Haeb-Umbach, M. Ackermann, and J. Blömer, “On the initialization of dynamic models for speech features,” Proc. of ITG Fachtagung Sprachkommunikation. ITG, Bochum, Germany, 2010.
LibreCat: /record/2991

W. Schäfer et al., “Engineering self-coordinating software intensive systems,” in Proceedings of the FSE/SDP workshop on Future of software engineering research - FoSER ’10, 2010.
LibreCat: /record/2994
DOI: 10.1145/1882362.1882428

M. R. Ackermann and J. Blömer, “Coresets and Approximate Clustering for Bregman Divergences,” in Proceedings of the Twentieth Annual ACM-SIAM Symposium on Discrete Algorithms, Philadelphia, PA: Society for Industrial and Applied Mathematics, 2009, pp. 1088–1097.
LibreCat: /record/2995
DOI: 10.1137/1.9781611973068.118

J. Blömer and S. Naewe, “Sampling methods for shortest vectors, closest vectors and successive minima,” Theoretical Computer Science, no. 18, pp. 1648–1665, 2009.
LibreCat: /record/2999
DOI: 10.1016/j.tcs.2008.12.045

J. Blömer and V. Krummel, “Analysis of Countermeasures Against Access Driven Cache Attacks on AES,” in Selected Areas in Cryptography, Berlin, Heidelberg: Springer Berlin Heidelberg, 2007, pp. 96–109.
LibreCat: /record/3002
DOI: 10.1007/978-3-540-77360-3_7