Presentations slides from HAR2009 for a talk on breaking Hitag2 RFID systems. Two pdfs are included.
You can download it from the following link: https://packetstormsecurity.com/files/download/80628/breaking_hitag2.tgz
Source: https://packetstormsecurity.com/files/80628/HAR-2009-Breaking-Hitag2.html