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Hi there. I've just made a little tool that allows you to convert your .dmp files generated by libnfc's nfc-mifare into the .bin keyfiles required by proxmark.
It's really simple but saves you from a lot of hassle setting up key files for proxmark, at least it did for me.
Libnfc key files are just regular full dumps. That is, the keys are located in the file at the same position as they would be on the card. A file containing the keys for a MF1K card, would be exactly 1K (1024 bytes) long. This has useless data in it, but it's practical to use. You can use any card dump as a key file.
Proxmark3 on the other hand, requires that the file containing the keys (dumpkeys.bin) to have all A keys first, all B keys later. With no useless gaps.
So, it is in fact better and smaller (192 bytes for a MF1K card), but if you got you keys from libnfc like me, well, then you wouldn't be able to use them from proxmark.
This little tool just covers that gap. It gets a MFD (libnfc) key file as input, and produces a BIN (proxmark) key file.
The normal scenario would be:
mfcuk to get the first key.
mfoc to get remaining keys (this will leave you a file with all the keys in MFD format)
mfd2bin keys.mfd keys.bin
and then you can use your key file for your proxmark's research, for instance, to be used with the "hf mf dump" command.
Well, just my two cents.
drakorg
mfd2bin.c, mfd2bin.h, Makefile.
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where we can find it~?
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http://depositfiles.com/files/6lpyuyuc6
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previous link is dead, here is an update: https://drive.google.com/open?id=0B0tKjUT1H7vXMjJIQjdkSzF1d1k
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