Off the top of my head, I'd be able to store additional and more complex cryptography keys...

The storage could be formatted to allow the use of cryptography keys with some storage for non-security related data.

@johnyma22 Thanks!

Some links to additional resources related to the demo project and talk I gave can be found here:

http://www.meetup.com/Cornwall-Digital/events/221752001/
http://www.slideshare.net/benwhorwood/marrying-a-penguin
http://tmp.mube.co.uk/zuul_nfc_security/zuul_lib.tar.gz
http://tmp.mube.co.uk/zuul_nfc_security/zuul_src.tar.gz

(Source code in the last two links.)

Using the RFID module via the Arduino to write the contents of the NFC chip was pretty interesting and allows for completely customised (i.e. not using a standardised file system) data to be written onto the ring.

I wanted a barebones platform to use as a base for future projects and using an Arduino allows for so many possibilities (although anything with a HS UART / Serial connection can make use of the RFID module in the demo project (e.g. a PC with a serial connection or USB-Serial adaptor)).

Those who attended the talk and people I have spoken to afterwards have all been very impressed with the build quality and design of the NFC Ring. Quite a few developers saw a lot of potential for their products.

@johnyma22 Thanks!

Some links to additional resources related to the demo project and talk I gave can be found here:

http://www.meetup.com/Cornwall-Digital/events/221752001/
http://www.slideshare.net/benwhorwood/marrying-a-penguin
http://tmp.mube.co.uk/zuul_nfc_security/zuul_lib.tar.gz
http://tmp.mube.co.uk/zuul_nfc_security/zuul_src.tar.gz

(Source code in the last two links.)

Using the RFID module via the Arduino to write the contents of the NFC chip was pretty interesting and allows for completely customised (i.e. not using a standardised file system) data to be written onto the ring.

I wanted a barebones platform to use as a base for future projects and using an Arduino allows for so many possibilities (although anything with a HS UART / Serial connection can make use of the RFID module in the demo project (e.g. a PC with a serial connection or USB-Serial adaptor)).

Those who attended the talk and people I have spoken to afterwards have all been very impressed with the build quality and design of the NFC Ring. Quite a few developers saw a lot of potential for their products.

Off the top of my head, I'd be able to store additional and more complex cryptography keys...

The storage could be formatted to allow the use of cryptography keys with some storage for non-security related data.