Sebastiaan Groot
Sebastiaan is an Ethical Hacker at KPN with an interest in binary analysis and exploitation, system security and breaking programs in general. Before that, he worked as an incident responder and forensic analyst at KPN-CERT. Whenever opportunity arises, he can be found at CTF events. Free time consists of GMing D&D campaigns, playing board games, traveling, cooking and daydreaming legitimized as worldbuilding for D&D sessions.
Session
MIFARE DESFire is the stronger, slightly more expensive sibling of the MIFARE family of smartcards. This workshop aims to cover the basics of the card's functions as well as how the most important crypto works. After a short lecture, it is up to you to analyze captured DESFire traces of vulnerable reader implementations with a Proxmark3 and program your own DESFire card to bypass the reader's security.