Homepage of Urs Wagner
I finished my Ph.D. in June 2013 as a member of the
Applied Algebra Group
of Prof. Joachim Rosenthal at the Institute of Mathematics of the
University of Zurich. My main interest lies in Cryptography, with a focus on latticeproblems and the according complexity
results and algorithms.
Urs Wagner
Institut für Mathematik
Universität Zürich
Winterthurerstrasse 190
CH8057 Zürich
EMail: <first name>.<last name>@math.uzh.ch
Tel.: +41(0)4463 55897
Office: Y27K04
Campus ZürichIrchel
Curriculum Vitae: [en][de]
Publications and Preprints

F. Fontein, M. Schneider and U. Wagner: A Polynomial Time Variant of LLL with Deep Insertions
[pdf arXiv].
In Preproceedings of the International Workshop on Coding and Cryptography (WCC '13), 2013.

U. Wagner and G. Maze: Improvements in Closest Point Search Based on Dual HKZBases
[pdf arXiv].
Submitted for publication.

U. Wagner: Solving the LPN Problem in Cuberoot Time
[pdf arXiv].

G. Maze and U. Wagner: A Note on the Weighted HarmonicGeometricArithmetic Means Inequalities
[pdf arXiv].
In Mathematical Inequalities and Applications, Vol. 15, 1 (2012), pp. 1526.

G. Maze, J. Rosenthal and U.Wagner: Natural Density of Rectangular Unimodular Integer Matrices
[pdf arXiv].
In Linear Algebra and its Applications, Vol. 434, 5 (2011), pp. 13191324.

S.D. Cardell, J. Rosenthal, G. Maze, and U. Wagner: Correlations in Stream Ciphers: a Systems Theory Point of
View.
In Proceedings of the 19th International Symposium on Mathematical Theory of Networks and Systems (MTNS '10) , 2010.
Teaching
I have been teaching assistant for the following classes:
Talks

A Polynomial Time Version of LLL with Deep Insertions.
Workshop on Coding and Cryptography, WCC 2013. Bergen, Norway.

DeepLLL Reconsidered.
SIAM Annual Meeting 2012. Minneapolis, Minnesota USA.

Improvements in closest point search in lattices based on dualHKZ bases.
Oberseminar by Prof. Buchmann, June 2012. TU Darmstadt, Germany.

Improvements in closest point search in lattices based on dualHKZ bases.
Workshop on Computational Security 2011. Centre de Recerca Matematica, Bellaterra, Spain.

Randomization techniques on lattice reduction algorithms.
International Conference on Computational and Mathematical Methods in Science and Engineering, CMMSE 2010. Almeria, Spain.

Lattice Reduction.
Arbeitsgemeinschaft in Codierungstheorie und Kryptographie, March 2010. University of Basel, Switzerland.

Fast correlation attacks on stream ciphers.
Arbeitsgemeinschaft in Codierungstheorie und Kryptographie, May 2009. University of Zurich, Switzerland.