Luckily, if you know the right tool, you can figure ... on the hackaday.io Hack Chat, where [Thomas Flayols] came for help reverse engineering the protocol for some RFID tags used for race timing.

The release is based off the Fedora 15 live desktop system, and includes a long list of RFID hacking tools, as well as some applications that allow for NFC tag emulation. His toolkit also contains ...

Note that none of these tools are sold specifically as hacking tools ... sub-GHz wireless antenna, iButton/NFC/RFID ...