Advanced Character Physics. Proceedings, Game Developer's Conference 2001, San Jose, 2001.
with Lars Knudsen, Attacks on Block Ciphers of Low Algebraic Degree, Journal of Cryptology, 2001.
with Agnes Heydtmann, Decoding Reed-Muller Codes Beyond Half the Minimum Distance, Proceedings of the Fifth International Conference on Finite Fields and Applications, Augsburg, Germany, 1999, to appear. Also appeared as a Technical Report from The Department of Mathematics, Technical University of Denmark, 1999.
Higher-Order Cryptanalysis of Block Ciphers. Ph.D. thesis, Dept. of Math., Technical University of Denmark, 1999.
Cryptanalysis of Block Ciphers with Probabilistic Non-Linear Relations of Low Degree. Crypto'98, in Hugo Krawczyk, editor, Lecture Notes in Computer Science 1462, Springer, 1998.
with Lars Knudsen, The Interpolation Attack on Block Ciphers. Fast Software Encryption '97, in Eli Biham, editor, Lecture Notes in Computer Science 1267, Haifa, Israel, Springer, 1997.
with Carlo Harpes, Non-Uniformity Measures for Generalized Linear Cryptanalysis and Partitioning Cryptanalysis, Proceedings of Pragocrypt '96, 1996.
Correlation Attacks on Block Ciphers, Master's Thesis, Dept. of Mathematics, Technical University of Denmark, January 1996.
Security Against Generalized Linear Cryptanalysis and Partitioning Cryptanalysis, Semester Project at Signal and Information Processing Laboratory, Swiss Federal Institute of Technology Zurich, Zürich 1995.
with Kim Lüders-Jensen, Bounds on Minimal Codewords in Linear Codes, 1994.
A Fast Method for Cryptanalysis of Substitution Ciphers, Cryptologia 19(3), July 1995. Winner of Best Undergraduate Paper Competition for 1992.