24C3 - 1.01

24th Chaos Communication Congress
Volldampf voraus!

Referenten
Marc-André Beck
Bernd R. Fix
Programm
Tag Tag 4 (2007-12-30)
Raum Saal 2
Beginn 12:45
Dauer 01:00
Info
ID 2364
Veranstaltungstyp lecture
Track Hacking
Sprache en
Feedback

Smartcard protocol sniffing

This talk will introduce you to the theoretical and practical issues involved in cloning/simulating existing smartcards. It is based on the lessons learned from cloning the Postcard (swiss debit card) issued by PostFinance.

After a brief introduction into the syntax of smartcard protocols (basically ISO 7816-4), the talk will demonstrate techniques to capture the communication between a smartcard and a terminal with the help of a Javacard-based logger cardlet. The gathered information (the semantics of the protocol) can then be used for cloning the smartcard under investigation.