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#1 2023-05-29 20:07:35

diamondrail
Contributor
Registered: 2017-08-07
Posts: 35

Convert Iclass SE Serial number into card data

As I understand there is a way to convert the Iclass Serial number (found by scanning the RFID using an Multiclass Iclass reader). (As an example, the iclass serial number that was detected by the reader is the following: iCLASS[0607816ac0] ).

The info that I read off the original Iclass se card is below, using a proxmark3.

Specifically for this class se card, I want to understand how the serial number is converted into the tag information that is shown below, which was read by the proxmark3.

— proxmark3 scan of the iclass se card:

[=] --------------------- Tag Information ----------------------
[+] CSN: BE 2F 02 12 FE FF 12 E0 uid
[+] Config: 12 FF FF FF 7F 1F FF 3C card configuration
[+] E-purse: EA FE FF FF FF FF FF FF Card challenge, CC
[+] Kd: 00 00 00 00 00 00 00 00 debit key, hidden
[+] Kc: 00 00 00 00 00 00 00 00 credit key, hidden
[+] AIA: FF FF FF 00 06 FF FF FF application issuer area
[=] -------------------- card configuration --------------------
[=] Raw: 12 FF FF FF 7F 1F FF 3C
[=] 12… app limit
[=] FFFF ( 65535 )… OTP
[=] FF… block write lock
[=] 7F… chip
[=] 1F… mem
[=] FF… EAS
[=] 3C fuses
[=] Fuses:
[+] mode… Application (locked)
[+] coding… ISO 14443-2 B / 15693
[+] crypt… Secured page, keys not locked
[=] RA… Read access not enabled
[=] -------------------------- Memory --------------------------
[=] 2 KBits/2 App Areas ( 256 bytes )
[=] AA1 blocks 13 { 0x06 - 0x12 (06 - 18) }
[=] AA2 blocks 18 { 0x13 - 0x1F (19 - 31) }
[=] ------------------------- KeyAccess ------------------------
[=] * Kd, Debit key, AA1 Kc, Credit key, AA2 *
[=] Read A… debit or credit
[=] Read B… debit or credit


--- if anyone has any guidance on this conversion, please let me know.

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