Senior Researcher/Professor, NEC Laboratories Europe and Flensburg University of Applied SciencesDr. Sebastian Gajek is a Professor for information security and cryptography at Flensburg University of Applied Sciences and a Senior Researcher at NEC Laboratories Europe. He was a postdoctoral fellow at Tel Aviv University. Gajek graduated from the Horst-Görtz Institute for IT-Security. His research interest is cryptography with applications to practical problems.