Thread: NFC Payments N9
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kevloral is offline kevloral
2012-03-09 , 11:34
Posts: 134 | Thanked: 247 times | Joined on Sep 2009 @ Spain, EU
#9
Originally Posted by Tux-Sef View Post
NFC needs a protocol to do a secure transaction. This is called Secure Wireless Protocol, SWP.
Actually, SWP stands for Single Wire Protocol.

Originally Posted by jalyst View Post
That story says nothing about retrospectively adding a secure-element to the C7?
It may still be possible to add one via the various means I mentioned, no idea if it's feasible (technically) though.

I can't find the discussion now, but it was confirmed that the chip used by the N9 doesn't have the necessary secure-element.
The SWP is the protocol you need to communicate the NFC controller chip with whatever secure elements may be available.

Therefore, if you have a NFC controller that supports SWP (like the NXP PN544 the C7 and the N9 have), the device has the needed additional hardware support for it (something I don't know if the C7 or the N9 really have), and there is the needed software support for that in the firmware, you could use a secure element within the UICC.

So the lack of an eSE in the device doesn't pose any problem... as long as the SWP support is in place.

Best regards.
 

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