The quantum moment problem, IPAM Workshop on Convex Optimization and Algebraic Geometry, September 2010, Los Angeles, USA
Unconditional security from noisy quantum storage, APS March Meeting, March 2010, Portland, USA
Security from Physical Assumptions, DOE Grassroots Security Roundtable, March 2010, San Francisco, USA
Security from Physical Assumptions, Caltech Lunch Bunch, February 2010, Pasadena, USA
Unconditional security from noisy quantum storage, 4th TQC, May 2009, Waterloo, Canada
Robust cryptography from noisy quantum storage, WQACT, November 2008, Singapore
Cryptography from noisy quantum storage, CIFAR, November 2008, Kelowna, Canada
The moment problem in quantum theory and generalized non-local theories, Workshop on information primitives and laws of nature, May 2008, ETH Zurich, Zurich, Switzerland
Uncertainty relations and the Clifford algebra, China Theory Week, September 2007, Beijing, China.
Mutually unbiased bases, uncertainty relations and locking, Workshop on Mutually unbiased bases and quantum identification, March 2006, McGill University Research Center, Barbados.
Improved bounds for locally decodable codes and private information
retrieval, IPAM Securing Cyberspace: Applications and Foundations of Cryptography and Computer Security 2006, UCLA, Los Angeles, USA.
The computer science view on communication complexity, QIPC 2006, Royal Society, London, UK.
Perl as a hacking tool, YAPC::Europe 2001, Hogeschool Holland, Amsterdam, Netherlands.
Invited Popular Science Talks
Fun and Games with Quantum Entanglement, CCC Congress 2005, Berlin, Germany.
Introduction to Quantum Cryptography, WTH 2005, Liempde, Netherlands.
Introduction to Quantum Computing, Chaos Communication Camp 2003, Berlin, Germany.
Conference Presentations, Seminars and Tutorials
The spectral de Finetti and the Lie algebraic quantum moment problem, October 2010, CQT, Singapore