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alphazo/gist:3303282

Created August 9, 2012 11:03
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  1. alphazo revised this gist Aug 9, 2012. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion gistfile1.md
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    Original file line number Diff line number Diff line change
    @@ -20,7 +20,7 @@ The patch is fairly simple, open libnfc-1.5.1/utils/nfc-mfclassic.c and comment
    Recompile and install.

    ## Connect the SCL3711 dongle
    I manually have to remove the pn533 module in order to get libnfc to work. This needs to be one everytime you re-plug the SCL3711 dongle.
    I manually have to remove the pn533 module in order to get libnfc to work. This needs to be done everytime you re-plug the SCL3711 dongle.

    # sudo rmmod pn533

  2. alphazo revised this gist Aug 9, 2012. 1 changed file with 9 additions and 0 deletions.
    9 changes: 9 additions & 0 deletions gistfile1.md
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    Original file line number Diff line number Diff line change
    @@ -78,3 +78,12 @@ or
    ATQA (SENS_RES): 00 04
    UID (NFCID1): 9b 97 4f 19
    SAK (SEL_RES): 08

    ## Go back to blank card

    # nfc-mfclassic w b blank-chinese.dmp cardtocopy.dmp

    or

    # nfc-mfclassic w a blank-chinese.dmp cardtocopy.dmp

  3. alphazo revised this gist Aug 9, 2012. 1 changed file with 4 additions and 1 deletion.
    5 changes: 4 additions & 1 deletion gistfile1.md
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    Original file line number Diff line number Diff line change
    @@ -1,4 +1,7 @@
    libnfc supports UUID writable cards and even has some dedicated tools for them. However it doesn't work with some of the cards found on eBay that are even simpler to use. Sector 0 is unlocked and can be written without any additional commands. libnfc requires a small patch to get it working.
    libnfc supports UUID writable cards and even has some dedicated tools for them.

    However it doesn't work with some of the cards found on eBay that are even simpler to use. Sector 0 is unlocked and can be written without any additional commands. libnfc requires a small patch to get it working.

    Following has been tested under ArchLinux with modified libnfc 1.5.1, mfoc 0.10.2 and a SCL3711 dongle.

    ## Patch & recompile libnfc
  4. @invalid-email-address Anonymous created this gist Aug 9, 2012.
    77 changes: 77 additions & 0 deletions gistfile1.md
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    Original file line number Diff line number Diff line change
    @@ -0,0 +1,77 @@
    libnfc supports UUID writable cards and even has some dedicated tools for them. However it doesn't work with some of the cards found on eBay that are even simpler to use. Sector 0 is unlocked and can be written without any additional commands. libnfc requires a small patch to get it working.
    Following has been tested under ArchLinux with modified libnfc 1.5.1, mfoc 0.10.2 and a SCL3711 dongle.

    ## Patch & recompile libnfc
    The patch is fairly simple, open libnfc-1.5.1/utils/nfc-mfclassic.c and comment 2 lines (it was lines 384 and 385 for me):

    // Try to write the trailer
    if (nfc_initiator_mifare_cmd (pnd, MC_WRITE, uiBlock, &mp) == false) {
    printf ("failed to write trailer block %d \n", uiBlock);
    bFailure = true;
    }
    } else {
    // The first block 0x00 is read only, skip this
    // COMMENT THIS if (uiBlock == 0 && ! write_block_zero)
    // COMMENT THIS continue;

    Recompile and install.

    ## Connect the SCL3711 dongle
    I manually have to remove the pn533 module in order to get libnfc to work. This needs to be one everytime you re-plug the SCL3711 dongle.

    # sudo rmmod pn533

    ## Dump the blank Chinese card

    ### Read the fresh blank chinese card

    # nfc-list
    nfc-list uses libnfc 1.5.1 (r1175)
    Connected to NFC device: SCM Micro / SCL3711-NFC&RW - PN533 v2.7 (0x07)
    1 ISO14443A passive target(s) found:
    ATQA (SENS_RES): 00 04
    UID (NFCID1): 00 00 00 00
    SAK (SEL_RES): 08

    ### Dump the blank chinese card card to get the keys

    # mfoc -P 500 -O blank-chinese.dmp

    Now remove the chinese card and put the card you want to copy and dump it

    ## Dump the Mifare card your want to copy

    ### Let's read the card to clone first

    # nfc-list
    nfc-list uses libnfc 1.5.1 (r1175)
    Connected to NFC device: SCM Micro / SCL3711-NFC&RW - PN533 v2.7 (0x07)
    1 ISO14443A passive target(s) found:
    ATQA (SENS_RES): 00 04
    UID (NFCID1): 9b 97 4f 19
    SAK (SEL_RES): 08

    ### Time to dump the target card

    # mfoc -P 500 -O cardtocopy.dmp

    Put the chinese card back and clone the card

    ## Write the Chinese card with the content of the other card including UUID


    # nfc-mfclassic w b cardtocopy.dmp blank-chinese.dmp

    or

    # nfc-mfclassic w a cardtocopy.dmp blank-chinese.dmp


    ## Check that the card is the same:
    # nfc-list
    nfc-list uses libnfc 1.5.1 (r1175)
    Connected to NFC device: SCM Micro / SCL3711-NFC&RW - PN533 v2.7 (0x07)
    1 ISO14443A passive target(s) found:
    ATQA (SENS_RES): 00 04
    UID (NFCID1): 9b 97 4f 19
    SAK (SEL_RES): 08