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79 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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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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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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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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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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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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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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J. Blömer, K. Bujna, in: Advances in Knowledge Discovery and Data Mining, Springer International Publishing, Cham, 2016, pp. 296–308.
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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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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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.
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.
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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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.
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.
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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.
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.
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).
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.
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.
2010 | Conference Paper | LibreCat-ID: 2994
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.
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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.
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.
2006 | Book Chapter | LibreCat-ID: 3004
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.
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J. Blömer, V. Krummel, in: Lecture Notes in Computer Science, Springer Berlin Heidelberg, Berlin, Heidelberg, 2006, pp. 106–120.
2003 | Book Chapter | LibreCat-ID: 3018
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.
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J. Blömer, J.-P. Seifert, in: Financial Cryptography, Springer Berlin Heidelberg, Berlin, Heidelberg, 2003, pp. 162–181.
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.
2016 | Preprint | LibreCat-ID: 2969 |
Hard-Clustering with Gaussian Mixture Models
J. Blömer, S. Brauer, K. Bujna, (2016).
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J. Blömer, S. Brauer, K. Bujna, (2016).
2011 | Conference Paper | LibreCat-ID: 2985
Hardness and Non-Approximability of Bregman Clustering Problems.
M.R. Ackermann, J. Blömer, C. Scholz, (2011).
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M.R. Ackermann, J. Blömer, C. Scholz, (2011).
1992 | Conference Paper | LibreCat-ID: 3047
How to denest Ramanujan's nested radicals
J. Blömer, in: Proceedings., 33rd Annual Symposium on Foundations of Computer Science, IEEE, 1992.
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J. Blömer, in: Proceedings., 33rd Annual Symposium on Foundations of Computer Science, IEEE, 1992.
2011 | Book Chapter | LibreCat-ID: 2986
How to Share a Secret
J. Blömer, in: Algorithms Unplugged, Springer Berlin Heidelberg, Berlin, Heidelberg, 2011, pp. 159–168.
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J. Blömer, in: Algorithms Unplugged, Springer Berlin Heidelberg, Berlin, Heidelberg, 2011, pp. 159–168.
2020 | Journal Article | LibreCat-ID: 10790
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.
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J. Blömer, S. Brauer, K. Bujna, D. Kuntze, Advances in Data Analysis and Classification 14 (2020) 147–173.
2013 | Book Chapter | LibreCat-ID: 2979
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.
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J. Blömer, P. Günther, G. Liske, in: Constructive Side-Channel Analysis and Secure Design, Springer Berlin Heidelberg, Berlin, Heidelberg, 2013, pp. 154–168.
2007 | Book Chapter | LibreCat-ID: 3021
Key Revocation with Interval Cover Families
J. Blömer, A. May, in: Selected Areas in Cryptography, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 325–341.
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J. Blömer, A. May, in: Selected Areas in Cryptography, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 325–341.
2007 | Book Chapter | LibreCat-ID: 3020
Low Secret Exponent RSA Revisited
J. Blömer, A. May, in: Lecture Notes in Computer Science, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 4–19.
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J. Blömer, A. May, in: Lecture Notes in Computer Science, Springer Berlin Heidelberg, Berlin, Heidelberg, 2007, pp. 4–19.
2003 | Book Chapter | LibreCat-ID: 3016
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.
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J. Blömer, A. May, in: Advances in Cryptology - CRYPTO 2003, Springer Berlin Heidelberg, Berlin, Heidelberg, 2003, pp. 27–43.