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109 Publications
2020 | Journal Article | LibreCat-ID: 20888
A Complexity Theoretical Study of Fuzzy K-Means
J. Blömer, S. Brauer, K. Bujna, ACM Transactions on Algorithms 16 (2020) 1–25.
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| DOI
J. Blömer, S. Brauer, K. Bujna, ACM Transactions on Algorithms 16 (2020) 1–25.
2004 | Book Chapter | LibreCat-ID: 3012
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.
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J. Blömer, A. May, in: Public Key Cryptography – PKC 2004, Springer Berlin Heidelberg, Berlin, Heidelberg, 2004, pp. 1–13.
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.
1998 | Journal Article | LibreCat-ID: 3028
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).
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J. Blömer, B. Trachsler, Technical Report/Departement of Computer Science, ETH Zürich (1998).
2004 | Conference Paper | LibreCat-ID: 3017
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.
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| DOI
J. Blömer, M. Otto, J.-P. Seifert, in: Proceedings of the 10th ACM Conference on Computer and Communication Security - CCS ’03, ACM Press, 2004.
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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| DOI
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.
2007 | Book Chapter | LibreCat-ID: 3026
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.
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| DOI
J. Blömer, in: Algorithms — ESA’ 98, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 151–162.
2016 | Conference Paper | LibreCat-ID: 2367
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.
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| DOI
J. Blömer, S. Brauer, K. Bujna, in: 2016 IEEE 16th International Conference on Data Mining (ICDM), IEEE, 2016, pp. 805–810.
2014 | Conference Paper | LibreCat-ID: 2977
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.
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| DOI
J. Blömer, K. Bujna, D. Kuntze, in: 2014 22nd International Conference on Pattern Recognition, IEEE, 2014.
2005 | Book Chapter | LibreCat-ID: 3006
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.
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J. Blömer, A. May, in: EUROCRYPT 2005, Springer Berlin Heidelberg, Berlin, Heidelberg, 2005, pp. 251–267.
2016 | Book Chapter | LibreCat-ID: 2970
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.
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| DOI
J. Blömer, K. Bujna, in: Advances in Knowledge Discovery and Data Mining, Springer International Publishing, Cham, 2016, pp. 296–308.
2016 | Book Chapter | LibreCat-ID: 2978
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.
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| DOI
J. Blömer, K. Bujna, in: Advances in Knowledge Discovery and Data Mining, Springer International Publishing, Cham, 2016, pp. 296–308.
2011 | Dissertation | LibreCat-ID: 2910
Algorithms for lattice problems with respect to general norms
S. Naewe, Algorithms for Lattice Problems with Respect to General Norms, Universität Paderborn, 2011.
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S. Naewe, Algorithms for Lattice Problems with Respect to General Norms, Universität Paderborn, 2011.
2009 | Dissertation | LibreCat-ID: 2911
Algorithms for the Bregman k-Median Problem
M.R. Ackermann, Algorithms for the Bregman K-Median Problem, Universität Paderborn, 2009.
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M.R. Ackermann, Algorithms for the Bregman K-Median Problem, Universität Paderborn, 2009.
2013 | Report | LibreCat-ID: 2917
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.
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J. Juhnke, H. Lefmann, V. Strehl, An Approach for Determining Optimal Contrast in Visual Cryptography, Fortschritt-Berichte VDI, 2013.
1995 | Report | LibreCat-ID: 3038
An XOR-based erasure-resilient coding scheme
J. Blömer, M. Kalfane, R. Karp, M. Karpinski, M. Luby, D. Zuckerman, An XOR-Based Erasure-Resilient Coding Scheme, Berkeley, USA, 1995.
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J. Blömer, M. Kalfane, R. Karp, M. Karpinski, M. Luby, D. Zuckerman, An XOR-Based Erasure-Resilient Coding Scheme, Berkeley, USA, 1995.
2014 | Journal Article | LibreCat-ID: 2976
Analysis of Agglomerative Clustering
M.R. Ackermann, J. Blömer, D. Kuntze, C. Sohler, Algorithmica 69 (2014).
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| DOI
M.R. Ackermann, J. Blömer, D. Kuntze, C. Sohler, Algorithmica 69 (2014).
2007 | Book Chapter | LibreCat-ID: 3002 |
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.
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J. Blömer, V. Krummel, in: Selected Areas in Cryptography, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 96–109.
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.
1995 | Journal Article | LibreCat-ID: 3037
Approximate matching of polygonal shapes
H. Alt, B. Behrends, J. Blömer, Annals of Mathematics and Artificial Intelligence 13 (1995).
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H. Alt, B. Behrends, J. Blömer, Annals of Mathematics and Artificial Intelligence 13 (1995).
1991 | Conference Paper | LibreCat-ID: 3048
Approximate matching of polygonal shapes (extended abstract)
H. Alt, B. Behrends, J. Blömer, in: Proceedings of the Seventh Annual Symposium on Computational Geometry - SCG ’91, ACM Press, 1991.
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H. Alt, B. Behrends, J. Blömer, in: Proceedings of the Seventh Annual Symposium on Computational Geometry - SCG ’91, ACM Press, 1991.
1990 | Book Chapter | LibreCat-ID: 3050
Approximation of convex polygons
H. Alt, J. Blömer, H. Wagener, in: Automata, Languages and Programming, Springer-Verlag, Berlin/Heidelberg, 1990, pp. 703–716.
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| DOI
H. Alt, J. Blömer, H. Wagener, in: Automata, Languages and Programming, Springer-Verlag, Berlin/Heidelberg, 1990, pp. 703–716.
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.
2010 | Book Chapter | LibreCat-ID: 2988
Bregman Clustering for Separable Instances
M.R. Ackermann, J. Blömer, in: SWAT 2010, Springer Berlin Heidelberg, Berlin, Heidelberg, 2010, pp. 212–223.
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M.R. Ackermann, J. Blömer, in: SWAT 2010, Springer Berlin Heidelberg, Berlin, Heidelberg, 2010, pp. 212–223.
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.
2019 | Dissertation | LibreCat-ID: 13679
Classification and Approximation of Geometric Location Problems
S. Brauer, Classification and Approximation of Geometric Location Problems, Paderborn, 2019.
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| DOI
S. Brauer, Classification and Approximation of Geometric Location Problems, Paderborn, 2019.
2000 | Book Chapter | LibreCat-ID: 3023
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.
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J. Blömer, in: Automata, Languages and Programming, Springer Berlin Heidelberg, Berlin, Heidelberg, 2000, pp. 248–259.
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.
2010 | Journal Article | LibreCat-ID: 2990
Clustering for Metric and Nonmetric Distance Measures
M.R. Ackermann, J. Blömer, C. Sohler, ACM Trans. Algorithms (2010) 59:1--59:26.
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M.R. Ackermann, J. Blömer, C. Sohler, ACM Trans. Algorithms (2010) 59:1--59:26.
2019 | Journal Article | LibreCat-ID: 2916
Complexity of single-swap heuristics for metric facility location and related problems
S. Brauer, Theoretical Computer Science 754 (2019) 88–106.
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S. Brauer, Theoretical Computer Science 754 (2019) 88–106.
2017 | Book Chapter | LibreCat-ID: 2381
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.
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| DOI
S. Brauer, in: D. Fotakis, A. Pagourtzis, V.T. Paschos (Eds.), Lecture Notes in Computer Science, Springer International Publishing, Cham, 2017, pp. 116–127.
1991 | Conference Paper | LibreCat-ID: 3049
Computing sums of radicals in polynomial time
J. Blömer, in: Proceedings 32nd Annual Symposium of Foundations of Computer Science, IEEE Comput. Soc. Press, 1991.
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| DOI
J. Blömer, in: Proceedings 32nd Annual Symposium of Foundations of Computer Science, IEEE Comput. Soc. Press, 1991.
2002 | Conference Paper | LibreCat-ID: 3041
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.
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J. Blömer, in: [1991] Proceedings 32nd Annual Symposium of Foundations of Computer Science, IEEE Comput. Soc. Press, 2002.
2004 | Book Chapter | LibreCat-ID: 3015
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.
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A. May, in: Advances in Cryptology – CRYPTO 2004, Springer Berlin Heidelberg, Berlin, Heidelberg, 2004, pp. 213–219.
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.
2009 | Book Chapter | LibreCat-ID: 2995
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.
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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.
2018 | Conference Paper | LibreCat-ID: 4344
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.
LibreCat
| DOI
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.
2007 | Book Chapter | LibreCat-ID: 3019
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.
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| DOI
A. May, in: Advances in Cryptology — CRYPTO 2002, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 242–256.
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).
2020 | Dissertation | LibreCat-ID: 15482
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.
LibreCat
| DOI
N. Löken, Cryptography for the Crowd — A Study of Cryptographic Schemes with Applications to Crowd Work, 2020.
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.
1997 | Book Chapter | LibreCat-ID: 3029
Denesting by bounded degree radicals
J. Blömer, in: Algorithms — ESA ’97, Springer Berlin Heidelberg, Berlin, Heidelberg, 1997, pp. 53–63.
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J. Blömer, in: Algorithms — ESA ’97, Springer Berlin Heidelberg, Berlin, Heidelberg, 1997, pp. 53–63.
2002 | Journal Article | LibreCat-ID: 35857
Denesting by Bounded Degree Radicals
J. Blömer, Algorithmica 28 (2002) 2–15.
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| DOI
J. Blömer, Algorithmica 28 (2002) 2–15.
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.
2007 | Book Chapter | LibreCat-ID: 3022
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.
LibreCat
| DOI
A. May, J.H. Silverman, in: Lecture Notes in Computer Science, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 110–125.
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).
2019 | Conference Paper | LibreCat-ID: 13557 |
Dynamic Searchable Encryption with Access Control
J. Blömer, N. Löken, in: 12th International Symposium on Foundations and Practice of Security, FPS 2019, Springer, 2019.
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J. Blömer, N. Löken, in: 12th International Symposium on Foundations and Practice of Security, FPS 2019, Springer, 2019.
2010 | Conference Paper | LibreCat-ID: 2993
Efficient and Compact CCA Security from Partitioned IBKEM
J. Schrieb, (2010).
LibreCat
J. Schrieb, (2010).
2016 | Report | LibreCat-ID: 2971
Effizienz und Sicherheit paarungsbasierter Kryptographie
J. Blömer, P. Günther, Effizienz Und Sicherheit Paarungsbasierter Kryptographie, Tagungsband des 26. Fraunhofer SIT Smartcard-Workshops, 2016.
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J. Blömer, P. Günther, Effizienz Und Sicherheit Paarungsbasierter Kryptographie, Tagungsband des 26. Fraunhofer SIT Smartcard-Workshops, 2016.
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