Badge RFID - erreur à la copie

Bonjour

Je rencontre un problème pour écrire sur un badge RFID.
Je dispose d'un lecteur ACR 122U, et je suis sous Mac OS.

Je suis parvenu à effectuer un dump de mon badge et à récupérer la clé, (enfin il me semble), donc je l'utilise pour effectuer le dump et il m'indique avoir bien trouvé la clé.

b_theo@UP Desktop % mfoc -k 415a54454b4d -O VIL_decrypte.mfd                                
The custom key 0x415a54454b4d has been added to the default keys
ISO/IEC 14443A (106 kbps) target:
    ATQA (SENS_RES): 00  04  
* UID size: single
* bit frame anticollision supported
       UID (NFCID1): e7  70  46  83  
      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: 415a54454b4d] -> [........\\\\\\\.]
[Key: ffffffffffff] -> [xxxxxxxx\\\\\\\x]
[Key: a0a1a2a3a4a5] -> [xxxxxxxxxxxxxxxx]
[Key: d3f7d3f7d3f7] -> [xxxxxxxxxxxxxxxx]
[Key: 000000000000] -> [xxxxxxxxxxxxxxxx]
[Key: b0b1b2b3b4b5] -> [xxxxxxxxxxxxxxxx]
[Key: 4d3a99c351dd] -> [xxxxxxxxxxxxxxxx]
[Key: 1a982c7e459a] -> [xxxxxxxxxxxxxxxx]
[Key: aabbccddeeff] -> [xxxxxxxxxxxxxxxx]
[Key: 714c5c886e97] -> [xxxxxxxxxxxxxxxx]
[Key: 587ee5f9350f] -> [xxxxxxxxxxxxxxxx]
[Key: a0478cc39091] -> [xxxxxxxxxxxxxxxx]
[Key: 533cb6c723f6] -> [xxxxxxxxxxxxxxxx]
[Key: 8fd0a4f256e9] -> [xxxxxxxxxxxxxxxx]

Sector 00 -  FOUND_KEY   [A]  Sector 00 -  FOUND_KEY   [B]  
Sector 01 -  FOUND_KEY   [A]  Sector 01 -  FOUND_KEY   [B]  
Sector 02 -  FOUND_KEY   [A]  Sector 02 -  FOUND_KEY   [B]  
Sector 03 -  FOUND_KEY   [A]  Sector 03 -  FOUND_KEY   [B]  
Sector 04 -  FOUND_KEY   [A]  Sector 04 -  FOUND_KEY   [B]  
Sector 05 -  FOUND_KEY   [A]  Sector 05 -  FOUND_KEY   [B]  
Sector 06 -  FOUND_KEY   [A]  Sector 06 -  FOUND_KEY   [B]  
Sector 07 -  FOUND_KEY   [A]  Sector 07 -  FOUND_KEY   [B]  
Sector 08 -  FOUND_KEY   [A]  Sector 08 -  FOUND_KEY   [B]  
Sector 09 -  FOUND_KEY   [A]  Sector 09 -  FOUND_KEY   [B]  
Sector 10 -  FOUND_KEY   [A]  Sector 10 -  FOUND_KEY   [B]  
Sector 11 -  FOUND_KEY   [A]  Sector 11 -  FOUND_KEY   [B]  
Sector 12 -  FOUND_KEY   [A]  Sector 12 -  FOUND_KEY   [B]  
Sector 13 -  FOUND_KEY   [A]  Sector 13 -  FOUND_KEY   [B]  
Sector 14 -  FOUND_KEY   [A]  Sector 14 -  FOUND_KEY   [B]  
Sector 15 -  FOUND_KEY   [A]  Sector 15 -  FOUND_KEY   [B]  

We have all sectors encrypted with the default keys..

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 :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  
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 :c7  6b  10  91  be  0f  bb  81  24  30  92  33  eb  13  63  0c  
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 :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  
Block 49, type B, key 415a54454b4d :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  
Block 48, type B, key 415a54454b4d :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  
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 :3f  29  e5  a8  26  7f  e0  c1  24  30  92  33  eb  13  63  0c  
Block 45, type B, key 415a54454b4d :24  30  92  33  eb  13  63  0c  a6  77  42  64  5d  4f  75  82  
Block 44, type B, key 415a54454b4d :e1  dc  23  c2  4e  d8  f3  20  05  9c  8a  de  a0  7c  91  45  
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 :24  30  92  33  eb  13  63  0c  24  30  92  33  eb  13  63  0c  
Block 41, type B, key 415a54454b4d :83  eb  4d  c7  0d  c3  e6  3c  9f  4d  a2  dc  d5  12  15  9f  
Block 40, type B, key 415a54454b4d :24  30  92  33  eb  13  63  0c  25  8f  68  c0  e8  2e  3f  ed  
Block 39, type A, key a0a1a2a3a4a5 :00  00  00  00  00  00  0f  00  ff  ff  00  00  00  00  00  00  
Block 38, type B, key 415a54454b4d :e1  dc  23  c2  4e  d8  f3  20  4b  17  72  87  be  7e  63  7b  
Block 37, type B, key 415a54454b4d :db  ef  d9  b3  14  3d  b7  5f  24  30  92  33  eb  13  63  0c  
Block 36, type B, key 415a54454b4d :30  a5  00  6d  b1  95  52  5e  d7  ff  3f  46  58  8f  0e  8f  
Block 35, type A, key a0a1a2a3a4a5 :00  00  00  00  00  00  0f  00  ff  ff  00  00  00  00  00  00  
Block 34, type B, key 415a54454b4d :3e  43  68  de  98  54  78  d0  ab  83  fd  b0  26  9d  6a  b7  
Block 33, type B, key 415a54454b4d :6a  49  5d  19  bc  67  ff  13  7c  e4  36  cb  7e  07  66  06  
Block 32, type B, key 415a54454b4d :16  2e  81  c5  de  df  c7  06  41  13  2a  7c  5d  d1  aa  99  
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 :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  
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 :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  
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 :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  
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 :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  
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 :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  
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 :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  
Block 01, type A, key ffffffffffff :ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  ff  
Block 00, type A, key ffffffffffff :e7  70  46  83  52  88  04  00  43  29  9d  ca  00  0a  0b  13

En revanche, lorsque j'essaie d'écrire sur le badge, j'ai l'erreur suivante :

b_theo@UP Desktop % nfc-mfclassic w b VIL_20ctsdecrypte.mfd VIL_decrypte.mfd 
NFC reader: ACS / ACR122U PICC Interface opened
Found MIFARE Classic card:
ISO/IEC 14443A (106 kbps) target:
    ATQA (SENS_RES): 00  04  
       UID (NFCID1): e7  70  46  83  
      SAK (SEL_RES): 88  
RATS support: no
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
nfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
nfc_initiator_transceive_bytes: Mifare Authentication Failed
!
Error: authentication failed for block 20

J'ai essayé avec le B, mais j'ai une erreur similaire. Sauriez-vous me dire où est mon erreur ? :?

Un grand merci !

Citation:
Envoyé par b_theo2
Je rencontre un problème pour écrire sur un badge RFID.
Je dispose d'un lecteur ACR 122U, et je suis sous Mac OS.

Je suis parvenu à effectuer un dump de mon badge et à récupérer la clé, (enfin il me semble), donc je l'utilise pour effectuer le dump et il m'indique avoir bien trouvé la clé.

[pre]b_theo@UP Desktop % mfoc -k 415a54454b4d -O VIL_decrypte.mfd
The custom key 0x415a54454b4d has been added to the default keys
ISO/IEC 14443A (106 kbps) target:
ATQA (SENS_RES): 00 04
* UID size: single
* bit frame anticollision supported
UID (NFCID1): e7 70 46 83
SAK (SEL_RES): 88
* Not compliant with ISO/IEC 14443-4
* Not compliant with ISO/IEC 18092

(.../...)

En revanche, lorsque j'essaie d'écrire sur le badge, j'ai l'erreur suivante :
b_theo@UP Desktop % nfc-mfclassic w b VIL_20ctsdecrypte.mfd VIL_decrypte.mfd 
NFC reader: ACS / ACR122U PICC Interface opened
Found MIFARE Classic card:
ISO/IEC 14443A (106 kbps) target:
    
nfc_initiator_transceive_bytes: Mifare Authentication Failed
!
Error: authentication failed for block 20
J'ai essayé avec le B, mais j'ai une erreur similaire. Sauriez-vous me dire où est mon erreur ? :?

Un grand merci !
Salut,

Une piste à explorer semble être la non-conformité aux standards (cf. Not compliant with ISO/IEC 14443-4, ISO/IEC 18092), voir le site du constructeur et Wikipedia:

Manuals & Datasheets for ACR122U:

Technical Specification of ACR122U NFC Contactless Smart Card Reader (.pdf)

Citation:

The ACR122U is a PC-linked contactless smart card reader/writer
developed on the 13.56 MHz contactless technology. It is the world’s first
CCID-compliant contactless card reader/writer that follows both ISO 14443
and ISO 18092. This device is designed to support not only MIFARE® and
ISO 14443 Type A and B cards but also FeliCa and NFC tags.

Source:
https://www.acs.com.hk/en/driver/3/a...sb-nfc-reader/
NFC Contactless Payments - ACR122U USB NFC Reader | ACS

https://en.wikipedia.org/wiki/ISO/IEC_14443 :
ISO/IEC 14443-4:2018 Part 4: Transmission protocol

https://en.wikipedia.org/wiki/Near-f...cation#ISO/IEC :

Citation:

ISO/IEC

NFC is standardized in ECMA-340 and ISO/IEC 18092. These standards specify the modulation schemes, coding, transfer speeds and frame format of the RF interface of NFC devices, as well as initialization schemes and conditions required for data collision-control during initialization for both passive and active NFC modes. They also define the transport protocol, including protocol activation and data-exchange methods. The air interface for NFC is standardized in:

ISO/IEC 18092 / ECMA-340—Near Field Communication Interface and Protocol-1 (NFCIP-1)

Peut-être évident mais as-tu essayé cette procédure avec un autre badge RFID ? *

* [Edit] (pour que tout le monde comprenne de quoi il s'agit)

La radio-identification, le plus souvent désignée par l'acronyme RFID (de l’anglais « radio frequency identification »), est une méthode pour mémoriser et récupérer des données à distance en utilisant des marqueurs appelés « radio-étiquettes » (« RFID tag » ou « RFID transponder » en anglais) ...

Source: https://fr.wikipedia.org/wiki/Radio-identification

Salut et merci pour ces docs !

Oui j'avais commandé les cartes chinoises avec l'UID modifiable et je n'ai pas cette erreur avec celles-ci...

Sauf que lorsque je faisais ma copie sur ces cartes, j'ai l'impression que les données n'étaient pas réellement copiées dessus car la carte n'était pas reconnue par le lecteur.

Merci