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#1 2017-12-09 00:33:21
- sdr_herrmanns
- Contributor
- Registered: 2017-11-11
- Posts: 28
mifare classic ev1? hardnested found key
hi all,
i got some nice mifare classic ev1 (i think it was) to play with today.
(i m sure to get is one more time to play with)
i was a bit in hurry today and missed some things which i cant read on tuts while i was there. long story short...
not sure if my procedure was correct but after i read the card with some 4 byte uid it showed on bottom "this card is hardened" (or something similar)
i cant remeber exactly my next step but the ouput was a0a1a2a3a4a5 all over in "a" sector and "b" sector was simliar except it used "b" instead of "a".
then i tried
hf mf hardnested 1 0 a a0a1a2a3a4a5
after a minute or so it spits out "brute force phase completed. key found: 112233445566 (not the real one 
)
is there any scenario with a wrong keyoutput?
if the found key is correct what comes next?
can i clone the card somehow or let pm3 simulate it?
sorry for my questions but i totally stuck at this point. thanks for help!
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#2 2017-12-09 06:52:55
- iceman
- Administrator
- Registered: 2013-04-25
- Posts: 9,506
- Website
Re: mifare classic ev1? hardnested found key
The improved hardnested should never output a wrong key. It should verify key with a authentication.
The process is the same as for any mifare classic dump. First get all keys, then dump. There is a lot of blogs and even the wiki have a nice little piece on Mifare, if you take time to have a look on it...
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