Mifare Type Identification - Plus SL3 vs. DESFire

janulo — Mon, 06 Feb 2017 14:45:25 GMT

I would like to ask, what is recommended procedure to differentiate between Mifare Plus SL3 and Mifare DESFire card, as both types returns SAK=0x20. According to AN018436, it's not recommended to use ATS to differentiate the IC type, as ATS can be customized.

Currently I use NXP library DESFire command GetApplicationIDs, which:

if success, I continue with DESFire reading,
if error, I continue with Plus SL3 reading.

Thank you in advance for any comments.

Re: Mifare Type Identification - Plus SL3 vs. DESFire

Jorge_Gonzalez — Tue, 14 Feb 2017 00:03:29 GMT

Hello Jan Matik,

As the SAK would be the same, then during initialization and anticollision the MIFARE Plus cards cannot be differentiated from MIFARE DESFire cards. I believe your workaround is good. You can also try to send the GET_VERSION command, which is supported by MIFARE DESFire but not by MIFARE Plus ICs.

Best Regards!,
Jorge Gonzalez

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Mifare Type Identification - Plus SL3 vs. DESFire

Re: Mifare Type Identification - Plus SL3 vs. DESFire