- Cracking an RFID Card The ultimate goal when attacking a Mifare card, or any RFID card, is to achieve read/write access on the contents of the card's memory. From here it would be possible to clone a card, write arbitrary values (such as stored subway credits), and, if you're lucky, modify arbitrary cards using the same service.
- Using proxmark after cracking the keys, you can execute: proxmark3 hf mf dump and you’ll get a file, just next the other one, with this name: dumpdata.bin The other commands that you will finally use will be: restore – Restore MIFARE classic binary file to BLANK tag csetuid – Set UID for magic Chinese card The first one will restore the.
- Mifare Cracking Windows
- Mifare Cracking Code
- Mifare Cracking Machine
- Mifare Cracking Iphone
- Mifare Classic Cracking Process
- Cracking Mifare Desfire
Cloning a MIFARE Classic 1k
Mifare Classic Offline Cracker is a tool that can recover keys from Mifare Classic cards. At the time of writing the current version was 1. ACR122U, mfcuk, and mfoc: Cracking MIFARE Classic on Arch Linux These items can be purchased from various online shops around the world.
Mathieu Bridon - https://mathieu.daitauha.fr
You will need writable NFC tags, compatible with MIFARE Classic 1k. Make suretheir sector 0 is writable. I usedthose (just the tags).
1. Try dumping the tag
Place the original on the reader, then try dumping it:
The above command might return an error like:
That means your original doesn't use the default keys used by
mfoc
. If that'sthe case, then follow along with step 2.Instead, if you didn't get an error then congratulations, your tag is even lesssecure than you thought, and the
original.dmp
file is a full dump of youroriginal tag. Proceed directly to step 3.2. Try cracking the keys
With the original still on the reader, run the following command:
It might take a while (on my laptop it took around 30 minutes), but eventuallythe command will finish.
The output should say something like the following:
This means
mfcuk
succeeded in cracking the encryption. In the above example,the secret key is 1234567890AB
. Note the one you obtained for your tag. Inthe rest of this page, I will refer to the key as ${KEY}
.Armed with the secret key, try again dumping the tag: (this is essentially thesame as the first step, but specifying the key)
This might again take some time (on my laptop it took around 1h40), but whenthe command eventually finishes, you should see the following: (among otherthings)
At this point, the
original.dmp
file is a full dump of your original tag.3. Dump the new, empty tag
This seems to be necessary, to make the new tag writable.
Replace the original tag by the new one on the reader, then run the following:
4. Write to the new tag
You can now copy the dump of the original onto the new tag:
Once this finishes, your new tag should be an exact copy of the original one.Congratulations, you're done. Go and try your new tag.
You might get the following error:
This means the sector 0 of your new tag is not writable. You'll need to useanother tag.
Cloning a MIFARE Classic 1k
Mathieu Bridon - https://mathieu.daitauha.fr
You will need writable NFC tags, compatible with MIFARE Classic 1k. Make suretheir sector 0 is writable. I usedthose (just the tags).
1. Try dumping the tag
Place the original on the reader, then try dumping it:
The above command might return an error like:
That means your original doesn't use the default keys used by
mfoc
. If that'sthe case, then follow along with step 2.Instead, if you didn't get an error then congratulations, your tag is even lesssecure than you thought, and the
original.dmp
file is a full dump of youroriginal tag. Proceed directly to step 3.2. Try cracking the keys
With the original still on the reader, run the following command:
It might take a while (on my laptop it took around 30 minutes), but eventuallythe command will finish.
The output should say something like the following:
This means
mfcuk
succeeded in cracking the encryption. In the above example,the secret key is 1234567890AB
. Note the one you obtained for your tag. Inthe rest of this page, I will refer to the key as ${KEY}
.Mifare Cracking Windows
Armed with the secret key, try again dumping the tag: (this is essentially thesame as the first step, but specifying the key)
This might again take some time (on my laptop it took around 1h40), but whenthe command eventually finishes, you should see the following: (among otherthings)
At this point, the
original.dmp
file is a full dump of your original tag.3. Dump the new, empty tag
This seems to be necessary, to make the new tag writable.
Mifare Cracking Code
Replace the original tag by the new one on the reader, then run the following:
4. Write to the new tag
Mifare Cracking Machine
You can now copy the dump of the original onto the new tag:
Mifare Cracking Iphone
Once this finishes, your new tag should be an exact copy of the original one.Congratulations, you're done. Go and try your new tag.
Mifare Classic Cracking Process
You might get the following error:
Cracking Mifare Desfire
This means the sector 0 of your new tag is not writable. You'll need to useanother tag.