Hi,
I can do it.
Please send me more detail info.
Let me know your skype id or whatsapp, we will discuss more detail.
I am working with Verifone Vx670, Vx520, Vx510 and can show you demo.
I had app on Vx Verifone Vx670 with encrypted data and decrypted data program on PC.
Please contact me when you need. Thank you.
Regards,
--Hung