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I'm 90% sure that NFC on a card can't do any kind of dynamic token generation, so it'd be the same token every time. Even if it isn't your actual credit card nu
by _bxg1 7y ago
I'm 90% sure that NFC on a card can't do any kind of dynamic token generation, so it'd be the same token every time. Even if it isn't your actual credit card number, that would mean you could at least use a copy of it at other contactless terminals.
- xenocratus 7y agoThat's Static Data Authentication. Dynamic Data Authentication is also a thing - the recommended thing nowadays, actually. Check it out https://www.openscdp.org/scripts/tutorial/emv/DDA.html https://www.openscdp.org/scripts/tutorial/emv/DDA.html These schemes are independent of physical transfer mechanism (well, mostly) Edit: https://en.m.wikipedia.org/wiki/Contactless_smart_card https://en.m.wikipedia.org/wiki/Contactless_smart_card you might be talking about MSD while I'm talking about EMV. C'mon, America, you're better than that