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72 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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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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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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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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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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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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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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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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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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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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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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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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2007 | Book Chapter | LibreCat-ID: 3002 | OA
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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2015 | Conference Paper | LibreCat-ID: 322 | OA
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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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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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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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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2017 | Conference Paper | LibreCat-ID: 2344 | OA
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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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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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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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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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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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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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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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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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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2018 | Conference Paper | LibreCat-ID: 2379 | OA
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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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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2019 | Conference Paper | LibreCat-ID: 13557 | OA
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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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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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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2018 | Conference Paper | LibreCat-ID: 3873 | OA
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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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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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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2018 | Conference Paper | LibreCat-ID: 3265 | OA
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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2016 | Preprint | LibreCat-ID: 2969 | OA
Hard-Clustering with Gaussian Mixture Models
J. Blömer, S. Brauer, K. Bujna, (2016).
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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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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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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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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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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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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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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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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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1999 | Conference Paper | LibreCat-ID: 3024
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.
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2010 | Journal Article | LibreCat-ID: 2991
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).
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2019 | Conference Paper | LibreCat-ID: 13554 | OA
Personal Cross-Platform Reputation
J. Blömer, N. Löken, in: Security and Trust Management, STM 2019, 2019.
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2018 | Conference Paper | LibreCat-ID: 2862 | OA
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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2002 | Journal Article | LibreCat-ID: 3034
Priority encoding transmission
A. Albanese, J. Blömer, J. Edmonds, M. Luby, M. Sudan, IEEE Transactions on Information Theory 42 (2002) 1737–1744.
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2002 | Conference Paper | LibreCat-ID: 3040
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.
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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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2004 | Book Chapter | LibreCat-ID: 3011
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.
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2006 | Journal Article | LibreCat-ID: 3003
Randomness and Secrecy - A Brief Introduction
J. Blömer, Journal of Universal Computer Science (J.UCS) (2006) 654--671.
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1992 | Book Chapter | LibreCat-ID: 3046
Resemblance and symmetries of geometric patterns
H. Alt, J. Blömer, in: Data Structures and Efficient Algorithms, Springer Berlin Heidelberg, Berlin, Heidelberg, 1992, pp. 1–24.
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2009 | Journal Article | LibreCat-ID: 2999
Sampling methods for shortest vectors, closest vectors and successive minima
J. Blömer, S. Naewe, Theoretical Computer Science (2009) 1648–1665.
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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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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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2006 | Book Chapter | LibreCat-ID: 3007
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.
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1992 | Dissertation | LibreCat-ID: 3043
Simplifying Expressions Involving Radicals
J. Blömer, Simplifying Expressions Involving Radicals, PhD thesis, Freie Universität Berlin, Fachbereich Mathematik und Informatik, 1992.
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2016 | Conference Paper | LibreCat-ID: 2947
Singular Curve Point Decompression Attack
J. Blömer, P. Günther, in: 2015 Workshop on Fault Diagnosis and Tolerance in Cryptography (FDTC), IEEE, 2016.
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2011 | Preprint | LibreCat-ID: 2987
Solving the Closest Vector Problem with respect to Lp Norms
J. Blömer, S. Naewe, ArXiv:1104.3720 (2011).
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2017 | Conference Paper | LibreCat-ID: 2967 | OA
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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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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1997 | Journal Article | LibreCat-ID: 3033
The rank of sparse random matrices over finite fields
J. Blömer, R. Karp, E. Welzl, Random Structures \& Algorithms (1997) 407–419.
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2016 | Book Chapter | LibreCat-ID: 2968
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.
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2012 | Journal Article | LibreCat-ID: 2984
Turing und Kryptografie
J. Blömer, Informatik-Spektrum 35 (2012).
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2019 | Conference Paper | LibreCat-ID: 13904 | OA
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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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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2015 | Report | LibreCat-ID: 233 | OA
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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2006 | Book Chapter | LibreCat-ID: 3005
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.
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