This is a paper about the basic security concepts of the smart phone operating systems Android and iOS. It was part of my university studies (fourth semester). Please note: The information in the paper are very outdated. Much has changed since then. You will find better and more recent information on the internet. This paper is just here for “completeness”. Read more

This is a paper about basic RFID security issues but with focus on the MIFARE Classic technology. It was part of my university studies (fourth semester). As part of this research, I had a closer look at the MIFARE Classic-based system of my university. Because of the multiple use cases (payment, access control, amount of free copies at the printers, etc.) there are plenty of attack vectors. Furthermore, I build an RFID zapper. This device can destroy RFID chips without leaving a trace (visible from the outside). Read more

This is a paper about basic and common security issues with wireless LANs. It was part of my university studies (first semester). After cracking the WiFi security, basic attack vectors like ARP spoofing and SSL/TLS man-in-the-middle have been taken into account as well. The last part is about my practical experience with wardriving. Read more