Yoann Gini wrote:

Le 18 janv. 2015 à 14:07, Henrik Brautaset Aronsen <henrik@synth.no> a écrit :

Is it possible to generate a key and store it on an NFC tag, so that it shows up with "sc_auth hash"?

I'm trying to login to OSX using NFC using info from http://support.apple.com/kb/TA24244.  The tag I have is a 13.56MHz ISO14443A & NFC Type 2 compliant NTAG216 RFID chipset, and I'm using a ACS ACR122T USB reader.


Which driver did you use for that? 

By default, PC/SC Lite don’t know how to talk with cards, you need a driver for that.

For what I’ve see, a project is started called ifdnfc to bring this functionality and support NFC card for PKCS11 via OpenSC.

But the source code isn’t really active and I don’t know if it work now.

Hi Yoann,

Thanks for your swift reply! I wasn't aware of the driver requirement, that's good to know.

I built pcscd and ifdnfc. ifdnfc-activate connects to pcscd, but says that it "Cannot find a smart card reader".   testpcsc says:

   Testing SCardEstablishContext   : Command successful.
   Testing SCardIsValidContext   : Command successful.
   Testing SCardIsValidContext    : Invalid handle. (don't panic)
   Testing SCardListReaderGroups   : Command successful.
   Group 01: SCard$DefaultReaders
   Testing SCardFreeMemory       : Command successful.
   Testing SCardListReaders    : Cannot find a smart card reader. (don't panic)
   Testing SCardGetStatusChange
   Please insert a working reader    :

The stock OSX version of pcsctest finds the reader just fine:

    $ /usr/bin/pcsctest

    Testing SCardEstablishContext    : Command successful.
    Testing SCardGetStatusChange
    Please insert a working reader   : Command successful.
    Testing SCardListReaders         : Command successful.
    Reader 01: ACS ACR122U

Maybe I need ifdnfc to talk to /System/Library/Frameworks/PCSC.framework/Versions/A/XPCServices/com.apple.ctkpcscd.xpc/Contents/MacOS/com.apple.ctkpcscd instead of my self-built pcscd?

Best regards,
Henrik