Proxmark developers community

Research, development and trades concerning the powerful Proxmark3 device.

Remember; sharing is caring. Bring something back to the community.


"Learn the tools of the trade the hard way." +Fravia

You are not logged in.

#1 2018-02-01 11:10:18

neoprema
Contributor
Registered: 2017-01-10
Posts: 10

If phone can read it, why not PM3?

Hi All,

I have a question. I've been issued with 2 credit-cards with the tap-to-pay system. Proxmark identifies these as a MIFARE 4K DESFIRE card.

What puzzles me is, if i download a run-of-the-mill Android NFC app and scan the card with a Galaxy S7 - the app displays the Credit-card number, expiry date and name.

The Proxmark however refuses to get any data off the card. It just says the keys are invalid, or other errors. What am i doing wrong? It does successfully identify the card though.

Thanks,

neoprema

Offline

#2 2018-02-01 11:36:12

iceman
Administrator
Registered: 2013-04-25
Posts: 4,374
Website

Re: If phone can read it, why not PM3?

that would be because Desfire isn't implemented on PM3...

but if you want to try reading a EMV card (like credit cards),  you can test the new commands under

hf emv 

modhex(hkhehghthbhudcfcdchkigiehgduiehg)

Offline

#3 2018-02-01 13:20:01

neoprema
Contributor
Registered: 2017-01-10
Posts: 10

Re: If phone can read it, why not PM3?

cool thanks. ive tried - not sure what all the output means so i'll have to play with it more. Nothing looking like card data is being returned but it might be in HEX.

Offline

Board footer

Powered by FluxBB