Hi Mathieu, Not quite the use of DNA but a step towards it is being worked upon by using a personal area network to facilitate bootstrapping a secure exchange. Have a look here: http://www.ego-project.eu/egotechnology and here http://www.ego-project....
The NFC SIM is a secure element which stores the payment credentials and any other data necessitating secure storage. The antenna and NFC chipset are on the device itself and the NFC chipset is in direct contact with the NFC SIM.
