Hello everyone, I’m starting to blogging with this simple tutorial, I hope I will continue more and more tutorials afterwards. In this tutorial I used two tools for recovering the key from a Mifare Classic 1k card. First with mfcuk I recovered Key A from firsh block of the first sector. Mfcuk uses timeout attack to find this key, and then using this key, mfoc can find other keys by using “Offline Nested Attack” presented by Nethemba. Let’s get started. Requirements: ACR122U NFC Reader (Cheap but unstable) pcsc-lite library acsc library libnfc 1.7.1 and 1.5.1 as well mfcuk (revision 65) mfoc Preparing the Environment I used Debian OS (Jessie version but Wheezy is also OK).

First install the pcsc-lite: $ sudo apt - get install libpcsclite1 libpcsclite - dev Then install acsc library from ACS’s site, open and in ‘Downloads’ section, download ‘PC/SC Driver Package’ Linux version (appr. Unzip the ACS-Unified-PKG-Lnx-108-P.zip and cd to its debian directory, you can see its Readme. Choose amd64 or i386 which suitable your environment then install. # dpkg -r libacsccid1 Make yourself a directory to work in, I’m using ‘/home/user/nfc/’ and cd to it. $ wget https: //libnfc.googlecode.com/files/libnfc-1.5.1.tar.gz We need libnfc 1.5.1,because mfcuk’s new version is somehow buggy, and it’s old version works well with libnfc 1.5.1.

Jun 9, 2017 - 3 min - Uploaded by Fratto Habbo8:20. Android app clones a Mastercard NFC card - Duration: 1:16. Thomas Fox- Brewster 109. +++ Description = 'How to Crack Mifare Classic Cards' title = 'How to Crack Mifare Classic Cards' date = '2015-04-21T19:20:00+01:00'. +++ In this blog post I will cover some quick basics about NFC, Mifare Classic and how to set up everything for reading and writing a NFC tag. At the end I show you how to reprogram a.

$ svn checkout - r 65 http: //mfcuk.googlecode.com/svn/trunk/ mfcuk-r65 $ tar zxf libnfc-1.5.1.tar.gz $ cd libnfc-1.5.1 Now we should compile libnfc in its local directory, NOT system directory( we are going to install 1.7.1 for system). $ make install Now, if it doesn’t exist add blacklist-libnfc.conf: # vim /etc/modprobe.d/blacklist-libnfc.conf blacklist nfc blacklist pn533 Save and exit. Then # modprobe -r pn533 nfc We successfully blacklisted blocking drivers. Install libnfc drivers # apt-get install libnfc-bin libnfc-dev libnfc5 And install mfoc, cracker for remaining sectors. Download it from here. Untar it: $ cd mfoc-0.10.7 — yes I used this version. Just follow the steps in INSTALL file: $.

/ configure # make # make install —- generally root is required when installing the program to system path. You can of course change the installing path, but this is the newest version for this tutorial,so I’m gonna install this to my default path. The environment is ready to crack/recover some card datas! Cracking Let’s get to the exciting point. If you check the pcscd service: # service pcscd status you should see: Active: active (running) and Process: 8963 ExecReload=/usr/sbin/pcscd –hotplug, first is the pcscd service and second is the executable (you can start it $pcscd -f). If the daemon is not running run it as # service pcscd start —>this runs the executable automaticly ( or $sudo service pcscd start) Plug your card reader to computer and put a card on it. Run mfcuk(as root): # LD_LIBRARY_PATH=/home/user/nfc/prefix/lib /home/user/nfc/prefix/bin/mfcuk -C -R 0:A -s 250 -S 250 -v 3 This will crack the first key of the first sector, cracking process may take some time(to 1 hour).

When it finishes, you will see an output like this: INFO: block 3 recovered KEY: aaaaaaaaaaaa 1 2 3 4 5 6 7 8 9 a b c d e f aaaaaaaaaaaa is your first block’s first sector’s key. We can now use mfoc, this doesn’t take so much.

Carddump.dmp is the card’s dump file. # mfoc -O carddump.dmp -k aaaaaaaaaaaa You can check card contents with hexdump. References: Tags:. Samsung Omnia 7 Themes Download there. Automotive Technology A Systems Approach By Jack Erjavec Pdf Free Download.

Rodrigo - Hi, first of all I would like to thank you for the great tutorial. I am having a return from pcsd and I could not resolve it, do you know of any means to solve it?

“00000047 ifdwrapper.c: 371: IFDStatusICC () Card not transacted: 68 eventhandler.c: 335: EHStatusHandlerThread () Error communicating to: ACS ACR122U 0050 ccid_usb.c: 1721: InterruptRead () libusb_submit_transfer failed: LIBUSB_ERROR_IO 00400256 ccid_usb.c: 1132: WriteUSB () write failed (1/3): -1 LIBUSB_ERROR_IO “ •. Tris - Hi there, I read many articles on this topic, I bought an ACR122U myself and tried some things on ubuntu 15.10: I followed only the steps necessary for mfoc in your article, because I haven’t been able to compile mfcuk (dependencies errors), and I thought I didn’t need it anyway because the card I want to dump use some default keys for many sectors – correct me if I’m wrong. So here is what I did and the results: mfoc on a blank card =>result in few seconds, because all keys are default no surprises here. A real access card, which I know has default A keys for all sectors, and default B keys for 13 sectors on 16 (result of a dictionary attack with an android app). That leaves me with only 3 keys to find. So, I launched mfoc with this access card and it – of course – finds all default keys, but keeps searching for the 3 missing keys indefinitely. 5000 probes with no luck.

Did I do something wrong? Do I need to get mfcuk working on these missing B keys for these 3 specifics sectors? I would appreciate a little help here Thank you!