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kosgguy

Contributor

Registered: 2021-12-18

Posts: 56

[question/error] Mifare Desfire 4k "hf mfdes getuid"

Hello,

When I do

hf mfdes info

I can successfully get all the data.

but when I do

hf mfdes getuid

I receive the following output

[!!] Desfire authenticate error. Result: [7] Sending auth command failed
[-] Select or authentication AID 000000 failed. Result [7] Sending auth command failed

My expected output was to display the UID. Any ideas?

Thanks

iceman

Administrator

Registered: 2013-04-25

Posts: 9,507

Website

Re: [question/error] Mifare Desfire 4k "hf mfdes getuid"

what does the datasheet say?

kosgguy

Contributor

Registered: 2021-12-18

Posts: 56

Re: [question/error] Mifare Desfire 4k "hf mfdes getuid"

When I do "hf mfdes" in the section "hf mfdes getuid" it says "get uid from card".

But my output says

[!!] Desfire authenticate error. Result: [7] Sending auth command failed
[-] Select or authentication AID 000000 failed. Result [7] Sending auth command failed

but "hf mfdes info" can get it.

So I am lost. I have also read the mifare desfire documentation you have in the proxmark.org files but I don't get any conclusion.

Any ideas?

Thanks

iceman

Administrator

Registered: 2013-04-25

Posts: 9,507

Website

Re: [question/error] Mifare Desfire 4k "hf mfdes getuid"

Like I said, what does the datasheet say?

kosgguy

Contributor

Registered: 2021-12-18

Posts: 56

Re: [question/error] Mifare Desfire 4k "hf mfdes getuid"

You mean this datasheet? https://www.nxp.com/docs/en/data-sheet/ … X2_SDS.pdf

thanks