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A comment on Plastc Card. Parent comment

Re:Plastc Card by jrockway on Tuesday October 07, 2014 @03:37PM (#8423476)
There are several variants on the NFC protocol. Some contain secure elements (with a CVV3, which is a cryptographically-signed incrementing number), but I believe they can also just dumbly-send the normal card data over the air.

I've also seen credit cards made from glass. I think they're NFC-only, though, because of the thickness, but I could be mistaken.

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Re:Plastc Card by bravo22 on Tuesday October 07, 2014 @05:33PM (#8424143)
You are correct in that the NFC is just a protocol but for it to be used without a signature you need a secure element. In their "mock-up" they show a smart car interface on the front and in the FAQ they claim EMV. It is very puzzling.
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Re:Plastc Card by objclxt on Tuesday October 07, 2014 @08:10PM (#8424695)
> I believe they can also just dumbly-send the normal card data over the air.

Only while the US still is supporting that. Once the liability shift occurs next year it'll be EMV or nothing.

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