Near Field Communication (NFC) currently is one of the most promising technologies in handsets for contactless applications
like ticketing or payment. These applications require a secure store for keeping sensitive data. Combining NFC with integrated
smartcard chips in a mobile device allows the emulation of different cards. Representing each secure element with different
UIDs poses several problems. Thus we propose an approach with a fixed UID dedicated to a Secure Element Controller (SEC).
This approach allows an optimized backwards compatibility to already established reader infrastructures but also the communication
in peer-to-peer mode with other NFC devices. Additionally the communication over peer-to-peer as well as the internal mode
of secure elements at the same time is possible. This is approach poses a flexible alternative to the implementations proposed
so far. In addition when there are to multiple, removable secure elements in a device it is ensured that the secure elements
are only used by authorized user/devices. The SEC in this case handles the communication between the secure elements as well
as their authentication.