Ecriture sur badge RFID avec nfc-mfclassic : Mifare Authentication Failed

Version imprimable

Bonjour,

J'essaye depuis quelques jours d'en apprendre un peu plus sur la rfid.

Pour cela, je me suis donc acheté un lecteur ACR122u et me suis un peu amusé avec un vieux badge rfid.

Pour l'instant, j'arrive à récupérer son contenu (du moins je crois) grâce à la commande mfoc:

Code:

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./mfoc -P 500 -O test.dmp
Found Mifare Classic 1k tag
ISO/IEC 14443A (106 kbps) target:
    ATQA (SENS_RES): 00  04 
* UID size: single
* bit frame anticollision supported
       UID (NFCID1): 85  b9  53  19 
      SAK (SEL_RES): 88 
* Not compliant with ISO/IEC 14443-4
* Not compliant with ISO/IEC 18092
 
Fingerprinting based on MIFARE type Identification Procedure:
* SmartMX with MIFARE 1K emulation
Other possible matches based on ATQA & SAK values:
* Mifare Classic 1K Infineon
 
Try to authenticate to all sectors with default keys...
Symbols: '.' no key found, '/' A key found, '\' B key found, 'x' both keys found
[Key: ffffffffffff] -> [xxxxxxxxxx.....x]
[Key: a0a1a2a3a4a5] -> [xxxxxxxxxx/////x]
[Key: d3f7d3f7d3f7] -> [xxxxxxxxxx/////x]
[Key: 000000000000] -> [xxxxxxxxxx/////x]
[Key: b0b1b2b3b4b5] -> [xxxxxxxxxx/////x]
[Key: 4d3a99c351dd] -> [xxxxxxxxxx/////x]
[Key: 1a982c7e459a] -> [xxxxxxxxxx/////x]
[Key: aabbccddeeff] -> [xxxxxxxxxx/////x]
[Key: 714c5c886e97] -> [xxxxxxxxxx/////x]
[Key: 587ee5f9350f] -> [xxxxxxxxxx/////x]
[Key: a0478cc39091] -> [xxxxxxxxxx/////x]
[Key: 533cb6c723f6] -> [xxxxxxxxxx/////x]
[Key: 8fd0a4f256e9] -> [xxxxxxxxxx/////x]
 
Sector 00 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 01 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 02 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 03 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 04 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 05 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 06 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 07 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 08 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 09 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 10 - Found   Key A: a0a1a2a3a4a5 Unknown Key B
Sector 11 - Found   Key A: a0a1a2a3a4a5 Unknown Key B
Sector 12 - Found   Key A: a0a1a2a3a4a5 Unknown Key B
Sector 13 - Found   Key A: a0a1a2a3a4a5 Unknown Key B
Sector 14 - Found   Key A: a0a1a2a3a4a5 Unknown Key B
Sector 15 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
 
 
Using sector 00 as an exploit sector
Sector: 10, type B, probe 0, distance 15042 .....
  Found Key: B [415a54454b4d]
Sector: 11, type B
  Found Key: B [415a54454b4d]
Sector: 12, type B
  Found Key: B [415a54454b4d]
Sector: 13, type B
  Found Key: B [415a54454b4d]
Sector: 14, type B
  Found Key: B [415a54454b4d]
Auth with all sectors succeeded, dumping keys to a file!
Block 63, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  0f  ff  ff  ff  ff  ff  ff 
Block 62, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 61, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 60, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 59, type A, key a0a1a2a3a4a5 :00  00  00  00  00  00  0f  00  ff  ff  00  00  00  00  00  00 
Block 58, type B, key 415a54454b4d :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 57, type B, key 415a54454b4d :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 56, type B, key 415a54454b4d :0e  1d  8d  f3  f3  8d  37  07  65  7f  0b  32  76  c5  5b  78 
Block 55, type A, key a0a1a2a3a4a5 :00  00  00  00  00  00  0f  00  ff  ff  00  00  00  00  00  00 
Block 54, type B, key 415a54454b4d :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 53, type B, key 415a54454b4d :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 52, type B, key 415a54454b4d :4f  15  aa  7b  8e  bf  bb  f6  ad  92  cf  36  97  6a  bb  e2 
Block 51, type A, key a0a1a2a3a4a5 :00  00  00  00  00  00  0f  00  ff  ff  00  00  00  00  00  00 
Block 50, type B, key 415a54454b4d :aa  c1  8c  e5  44  ec  1b  5e  44  e0  09  d2  05  d8  01  ce 
Block 49, type B, key 415a54454b4d :9d  ef  a2  c0  8b  5a  b4  31  86  b8  ec  d8  38  fb  7c  0a 
Block 48, type B, key 415a54454b4d :3c  b2  a9  02  f6  9f  ce  98  db  c5  dd  f5  02  c9  4c  d1 
Block 47, type A, key a0a1a2a3a4a5 :00  00  00  00  00  00  0f  00  ff  ff  00  00  00  00  00  00 
Block 46, type B, key 415a54454b4d :aa  c1  8c  e5  44  ec  1b  5e  13  98  71  2e  0b  39  a1  15 
Block 45, type B, key 415a54454b4d :e6  54  c1  ff  dc  2b  dc  87  a3  92  1b  0b  2f  e5  41  d8 
Block 44, type B, key 415a54454b4d :45  52  6e  d8  1d  ef  e9  ca  a0  1a  82  c8  68  46  0d  93 
Block 43, type A, key a0a1a2a3a4a5 :00  00  00  00  00  00  0f  00  ff  ff  00  00  00  00  00  00 
Block 42, type B, key 415a54454b4d :b2  92  dc  80  53  e6  d0  79  d7  c2  b9  e0  aa  d9  62  43 
Block 41, type B, key 415a54454b4d :d2  15  10  d2  2c  75  d3  35  11  8a  c6  55  8c  9d  cd  3f 
Block 40, type B, key 415a54454b4d :86  7f  61  eb  f5  3e  4d  49  dd  5a  5a  19  79  7d  db  e2 
Block 39, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  69  ff  ff  ff  ff  ff  ff 
Block 38, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 37, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 36, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 35, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  78  ff  ff  ff  ff  ff  ff 
Block 34, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 33, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 32, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 31, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  87  ff  ff  ff  ff  ff  ff 
Block 30, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 29, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 28, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 27, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  96  ff  ff  ff  ff  ff  ff 
Block 26, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 25, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 24, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 23, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  a5  ff  ff  ff  ff  ff  ff 
Block 22, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 21, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 20, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 19, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  b4  ff  ff  ff  ff  ff  ff 
Block 18, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 17, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 16, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 15, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  c3  ff  ff  ff  ff  ff  ff 
Block 14, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 13, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 12, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 11, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  d2  ff  ff  ff  ff  ff  ff 
Block 10, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 09, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 08, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 07, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  e1  ff  ff  ff  ff  ff  ff 
Block 06, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 05, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 04, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 03, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  f0  ff  ff  ff  ff  ff  ff 
Block 02, type A, key ffffffffffff :02  12  22  32  42  52  62  72  82  92  a2  b2  c2  d2  e2  f2 
Block 01, type A, key ffffffffffff :01  11  21  31  41  51  61  71  81  91  a1  b1  c1  d1  e1  f1 
Block 00, type A, key ffffffffffff :85  b9  53  19  76  88  04  00  43  25  4a  e0  00  06  03  05

mais lorsque j'essai de réécrire sur ce badge grâce à la commande nfc-mfclassic , il y a une erreur que je n'arrive pas à comprendre:

Code:

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mfc-mfclassic w A  test.dmp
NFC reader: ACS / ACR122U PICC Interface opened
Found MIFARE Classic card:
ISO/IEC 14443A (106 kbps) target:
    ATQA (SENS_RES): 00  04 
       UID (NFCID1): 85  b9  53  19 
      SAK (SEL_RES): 88 
Guessing size: seems to be a 1024-byte card
Writing 64 blocks |.......................................nfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
xxxfailed to write trailer block 43
xnfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
xxxfailed to write trailer block 47
xnfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
xxxfailed to write trailer block 51
xnfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
xxxfailed to write trailer block 55
xnfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
xxxfailed to write trailer block 59
x....|
Done, 43 of 64 blocks written.

Quelqu'un pourrait m'expliquer d'ou vient le problème ?

Je cherche depuis plusieurs jours mais je n'ai rien trouvé :( .

Merci d'avance pour votre aide :)

13/04/2019, 17h17
Flodelarab

Bonjour :coucou:

Pourquoi as-tu choisi l'option w (write) plutôt que W (unlocked write) ? Tu n'as manifestement pas les droits d'écriture.

Pour plus d'infos :

Code:

man nfc-mfclassic

Bonjour,

merci pour votre réponse :).

Je n'avais pas choisi Wcar il me semble que le bloc 0 correspondant à l'UID est bloqué en lecture sur le badge. Afin de ne pas avoir de problèmes pour cela j'avais donc choisit w.

Voici ce qu'il se passe lorsque je rentre la commande avec W :
Code:

1 2 3 4 5 6 7 8 9 10 11 nfc-mfclassic W A test.dmp NFC reader: ACS / ACR122U PICC Interface opened Found MIFARE Classic card: ISO/IEC 14443A (106 kbps) target: ATQA (SENS_RES): 00 04 UID (NFCID1): 85 b9 53 19 SAK (SEL_RES): 88 Guessing size: seems to be a 1024-byte card Sent bits: 50 00 57 cd Sent bits: 40 (7 bits) unlock failure!

1 pièce(s) jointe(s)

Citation:

Envoyé par Asterix20

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./mfoc -P 500 -O test.dmp
Found Mifare Classic 1k tag
ISO/IEC 14443A (106 kbps) target:
    ATQA (SENS_RES): 00  04 
* UID size: single
* bit frame anticollision supported
       UID (NFCID1): 85  b9  53  19 
      SAK (SEL_RES): 88 
* Not compliant with ISO/IEC 14443-4
* Not compliant with ISO/IEC 18092
 
Fingerprinting based on MIFARE type Identification Procedure:
* SmartMX with MIFARE 1K emulation
Other possible matches based on ATQA & SAK values:
* Mifare Classic 1K Infineon
 
Try to authenticate to all sectors with default keys...
Symbols: '.' no key found, '/' A key found, '\' B key found, 'x' both keys found
[Key: ffffffffffff] -> [xxxxxxxxxx.....x]
[Key: a0a1a2a3a4a5] -> [xxxxxxxxxx/////x]
[Key: d3f7d3f7d3f7] -> [xxxxxxxxxx/////x]
[Key: 000000000000] -> [xxxxxxxxxx/////x]
[Key: b0b1b2b3b4b5] -> [xxxxxxxxxx/////x]
[Key: 4d3a99c351dd] -> [xxxxxxxxxx/////x]
[Key: 1a982c7e459a] -> [xxxxxxxxxx/////x]
[Key: aabbccddeeff] -> [xxxxxxxxxx/////x]
[Key: 714c5c886e97] -> [xxxxxxxxxx/////x]
[Key: 587ee5f9350f] -> [xxxxxxxxxx/////x]
[Key: a0478cc39091] -> [xxxxxxxxxx/////x]
[Key: 533cb6c723f6] -> [xxxxxxxxxx/////x]
[Key: 8fd0a4f256e9] -> [xxxxxxxxxx/////x]
 
Sector 00 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 01 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 02 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 03 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 04 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 05 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 06 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 07 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 08 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 09 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
Sector 10 - Found   Key A: a0a1a2a3a4a5 Unknown Key B
Sector 11 - Found   Key A: a0a1a2a3a4a5 Unknown Key B
Sector 12 - Found   Key A: a0a1a2a3a4a5 Unknown Key B
Sector 13 - Found   Key A: a0a1a2a3a4a5 Unknown Key B
Sector 14 - Found   Key A: a0a1a2a3a4a5 Unknown Key B
Sector 15 - Found   Key A: ffffffffffff Found   Key B: ffffffffffff
 
 
Using sector 00 as an exploit sector
Sector: 10, type B, probe 0, distance 15042 .....
  Found Key: B [415a54454b4d]
Sector: 11, type B
  Found Key: B [415a54454b4d]
Sector: 12, type B
  Found Key: B [415a54454b4d]
Sector: 13, type B
  Found Key: B [415a54454b4d]
Sector: 14, type B
  Found Key: B [415a54454b4d]
Auth with all sectors succeeded, dumping keys to a file!
Block 63, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  0f  ff  ff  ff  ff  ff  ff 
Block 62, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 61, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 60, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 59, type A, key a0a1a2a3a4a5 :00  00  00  00  00  00  0f  00  ff  ff  00  00  00  00  00  00 
Block 58, type B, key 415a54454b4d :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 57, type B, key 415a54454b4d :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 56, type B, key 415a54454b4d :0e  1d  8d  f3  f3  8d  37  07  65  7f  0b  32  76  c5  5b  78 
Block 55, type A, key a0a1a2a3a4a5 :00  00  00  00  00  00  0f  00  ff  ff  00  00  00  00  00  00 
Block 54, type B, key 415a54454b4d :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 53, type B, key 415a54454b4d :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 52, type B, key 415a54454b4d :4f  15  aa  7b  8e  bf  bb  f6  ad  92  cf  36  97  6a  bb  e2 
Block 51, type A, key a0a1a2a3a4a5 :00  00  00  00  00  00  0f  00  ff  ff  00  00  00  00  00  00 
Block 50, type B, key 415a54454b4d :aa  c1  8c  e5  44  ec  1b  5e  44  e0  09  d2  05  d8  01  ce 
Block 49, type B, key 415a54454b4d :9d  ef  a2  c0  8b  5a  b4  31  86  b8  ec  d8  38  fb  7c  0a 
Block 48, type B, key 415a54454b4d :3c  b2  a9  02  f6  9f  ce  98  db  c5  dd  f5  02  c9  4c  d1 
Block 47, type A, key a0a1a2a3a4a5 :00  00  00  00  00  00  0f  00  ff  ff  00  00  00  00  00  00 
Block 46, type B, key 415a54454b4d :aa  c1  8c  e5  44  ec  1b  5e  13  98  71  2e  0b  39  a1  15 
Block 45, type B, key 415a54454b4d :e6  54  c1  ff  dc  2b  dc  87  a3  92  1b  0b  2f  e5  41  d8 
Block 44, type B, key 415a54454b4d :45  52  6e  d8  1d  ef  e9  ca  a0  1a  82  c8  68  46  0d  93 
Block 43, type A, key a0a1a2a3a4a5 :00  00  00  00  00  00  0f  00  ff  ff  00  00  00  00  00  00 
Block 42, type B, key 415a54454b4d :b2  92  dc  80  53  e6  d0  79  d7  c2  b9  e0  aa  d9  62  43 
Block 41, type B, key 415a54454b4d :d2  15  10  d2  2c  75  d3  35  11  8a  c6  55  8c  9d  cd  3f 
Block 40, type B, key 415a54454b4d :86  7f  61  eb  f5  3e  4d  49  dd  5a  5a  19  79  7d  db  e2 
Block 39, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  69  ff  ff  ff  ff  ff  ff 
Block 38, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 37, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 36, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 35, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  78  ff  ff  ff  ff  ff  ff 
Block 34, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 33, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 32, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 31, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  87  ff  ff  ff  ff  ff  ff 
Block 30, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 29, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 28, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 27, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  96  ff  ff  ff  ff  ff  ff 
Block 26, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 25, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 24, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 23, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  a5  ff  ff  ff  ff  ff  ff 
Block 22, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 21, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 20, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 19, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  b4  ff  ff  ff  ff  ff  ff 
Block 18, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 17, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 16, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 15, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  c3  ff  ff  ff  ff  ff  ff 
Block 14, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 13, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 12, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 11, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  d2  ff  ff  ff  ff  ff  ff 
Block 10, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 09, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 08, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 07, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  e1  ff  ff  ff  ff  ff  ff 
Block 06, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 05, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff 
Block 04, type A, key ffffffffffff :00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00 
Block 03, type A, key ffffffffffff :00  00  00  00  00  00  ff  07  80  f0  ff  ff  ff  ff  ff  ff 
Block 02, type A, key ffffffffffff :02  12  22  32  42  52  62  72  82  92  a2  b2  c2  d2  e2  f2 
Block 01, type A, key ffffffffffff :01  11  21  31  41  51  61  71  81  91  a1  b1  c1  d1  e1  f1 
Block 00, type A, key ffffffffffff :85  b9  53  19  76  88  04  00  43  25  4a  e0  00  06  03  05

mais lorsque j'essai de réécrire sur ce badge grâce à la commande nfc-mfclassic , il y a une erreur que je n'arrive pas à comprendre:

Code:

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mfc-mfclassic w A  test.dmp
NFC reader: ACS / ACR122U PICC Interface opened
Found MIFARE Classic card:
ISO/IEC 14443A (106 kbps) target:
    ATQA (SENS_RES): 00  04 
       UID (NFCID1): 85  b9  53  19 
      SAK (SEL_RES): 88 
Guessing size: seems to be a 1024-byte card
Writing 64 blocks |.......................................nfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
xxxfailed to write trailer block 43
xnfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
xxxfailed to write trailer block 47
xnfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
xxxfailed to write trailer block 51
xnfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
xxxfailed to write trailer block 55
xnfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
xxxfailed to write trailer block 59
x....|
Done, 43 of 64 blocks written.

Quelqu'un pourrait m'expliquer d'ou vient le problème ?

Je cherche depuis plusieurs jours mais je n'ai rien trouvé :( .

Merci d'avance pour votre aide :)

Alors, pour un badge AZTEK ;)
Il faut effectivement faire un dump genre :

Code:

mfoc -P 500 -O backup.dmf

Si jamais tu veux ré écrire sur le badge, alors il faudra le dumper a nouveau :

Code:

mfoc -P 500 -O badge.dmf

pour ré écrire ensuite

Code:

mfc-mfclassic w B backup.dmf badge.dmf

En premier, le dump a écrire, en 2nd, le dump actuel du badge

pourquoi w B ? Car ton badge est pas unlock (W > badge spéciaux sur amazon)
et B car les bloc 8 a 13 se changent seulement grâce à la key B comme tu peux voir ci-dessous :
Pièce jointe 467482

Tiens nous au courant ;)

Bonjour, merci beaucoup pour votre aide, il me semble que cela a fonctionné :)
J'ai tapé la commande mfc-mfclassic w B backup.dmf badge.dmf et tous les secteurs à part le secteur 0 qui est bloqué en écriture ont pu être écrit :
Code:

1 2 3 4 5 6 7 8 9 NFC reader: ACS / ACR122U PICC Interface opened Found MIFARE Classic card: ISO/IEC 14443A (106 kbps) target: ATQA (SENS_RES): 00 04 UID (NFCID1): 85 b9 53 19 SAK (SEL_RES): 88 Guessing size: seems to be a 1024-byte card Writing 64 blocks |...............................................................| Done, 63 of 64 blocks written.
Je vais essayer de me documenter un peu plus sur la technologie mifare pour mieux comprendre comment cela marche.

Merci encore pour votre aide :)

17/04/2019, 00h06
Cr4zZyBipBiip

3 pièce(s) jointe(s)
Exactement, le secteur 0 est bloqué car c'est le principe des badge Mifare, chaque Badge a un UID unique (sauf si tu clique sur mon lien amazon)
et pour tout le reste, AZTEK utilise la clé B pour la lecture/ecriture. Sans clé B on obtient juste ceci :
Pièce jointe 467533

D'ailleurs, si tu veux un peu plus de praticité, je te conseille MIFARE Classic Tool - MCT sur Android
Juste, dans l'interface, va dans "Edit/Add key file" et "Create new file" avec ces 3 lignes dedans :
Code:

1 2 3 415A5445B4D FFFFFFFFFFFF A0A1A2A3A4A5
Enregistre sous "Badge AZTEK" ^^

Il te suffira alors de "Read TAG" avec le Badge AZTEK coché
Pièce jointe 467534
et tada... tu pourras faire une sauvegarde sur ton téléphone de ton badge
Pièce jointe 467537
Tu pourras bien évident Write TAG ==> Write DUMP (Clone) par dessus ton badge AZTEK a toi !
ATTENTION !
N'essaie surtout pas de transférer les données de TON badge sur celui de tes amis et inversement (ou alors, pense a faire une sauvegarde de CHAQUE BADGE) !
Chaque badge est unique et les datas sont calculés et décrypté par la machine selon l'UID DU BADGE ! Tu risquerais alors de rendre totalement obsolètes les badges si tu transfères des data qui proviennent d'un autre badge

Enfin bref... Amuse toi bien :)
19/04/2019, 13h49
Asterix20

Bonjour,
Je te remercie pour le nom du logiciel sous Android, je vais le télécharger :)