Topic: [Call for Testers] Announcing Mifare DESFire support in libfreefare!
Good news everyone! The Mifare DESFire support in libfreefare  is complete! While some polishing is still required before merging the -desfire branch into libfreefare's trunk and releasing the updated code, I am confident enough in the implementation to do a call for testers!
How to test?
If you would like to give libfreefare's Mifare DESFire support a try:
svn co https://nfc-tools.googlecode.com/svn/branches/libfreefare-desfire cd libfreefare-desfire autoreconf -is ./configure --prefix="/usr" make make install
Then you can read the mifare_desfire(3) man page, and have a look to the examples and the unit test suite to get started.
What to test ?
Well, actually I only ported a regression test suite (supposed to be inspired by some code from NXP) to cutter  to check my implementation, and since I only own a single Mifare DESFire 4K card, I only have tested with it.
I would be interested in feedback about building the software on other platforms (I run FreeBSD-8 amd64), running the regression test suite, using Mifare DESFire 2K / 8K, your experiments results, etc…
I have to mention that I had some trouble when using a Snapper Feeder and the problem has been reported to Snapper, but the problem might be tied to this reader or at the chip the device uses since I could not reproduce it on a touchatag device, so if the communication with the tag stops unexpectedly at random locations, please try with another device and report the issue.
This work was sponsored by IL4P  the Mifare DESFire tag was donated by SpringCard .
Thank you for your feedback!