mobile

The Idea with the project is use the Mobile as a Credential using NFC with an Arduino Leopard + NFC Shield. I'm using Phonegap 'cause I can use the code for android, wp and android, and maybe sometime for ios.
I just need send 2 string, like email and a key to Arduino, doing the work to validate the information with a web service.

I try with all Information from the Plugin Phonegap NFC from Chariot Solutions from Github.
but no results. The Example codes what i found is just to write and/or read on nfc cards.

¿How could make with phonegap as a Mobile Credential NFC to Arduino?
If someone did this, i will rly grateful.