Özgür's day job keeps him busy with reading code that others wrote. At night, he is a member of the dev-team of GNU Taler, helping to extend Taler with advanced features. He does this as PhD-candidate at the Internet Technologies research group at the Freie Univeristät Berlin.
Today, age verification in e-commerce implies identity verification, one way or the other. In this talk, we first look at existing solutions for age restriction and their shortcomings. We then present a design for a privacy-friendly method that binds age restriction to the ability to pay (rather than identification) and that is aligned with the principle of subsidiarity. We show how this scheme is integrated with the GNU Taler payment system, making it the first fully privacy-friendly payment system with age restriction.