7Byte UID Changeable Card with Desfire EV2 SAK/ATQA

Description

Changing UID

hf 14a apdu -s 00ab00010704203e32506680

04203e32506680 -> UID

Changing get version

hf 14a apdu -s 00ab00361c04010112001A0504010102011A0504203E32506680CEEDD155602719Example:

[usb] pm3 –> hf 14a apdu -s 00ab00010704206666688888
[+] ( select )
[+] >>> 00AB00010704206666688888
[+] <<< 9000 | ..
[+] <<< status: 90 00 – Command successfully executed (OK).

[usb] pm3 –> hf search

[/] Searching for ISO14443-A tag…

[+] UID: 04 20 66 66 68 88 88

[+] ATQA: 03 44

[+] SAK: 20 [1]

[+] MANUFACTURER: NXP Semiconductors Germany

[+] Possible types:

[+] MIFARE DESFire CL2

[+] MIFARE DESFire EV1 256B/2K/4K/8K CL2

[+] MIFARE DESFire EV2 2K/4K/8K/16K/32K

[+] MIFARE DESFire Light 640B

[+] NTAG 4xx

[=] ————————– ATS ————————–

[+] ATS: 06 75 77 81 02 80 [ f0 00 ]

[=] 06…………… TL length is 6 bytes

[=] 75………… T0 TA1 is present, TB1 is present, TC1 is present, FSCI is 5 (FSC = 64)

[=] 77……… TA1 different divisors are supported, DR: [2, 4, 8], DS: [2, 4, 8]

[=] 81…… TB1 SFGI = 1 (SFGT = 8192/fc), FWI = 8 (FWT = 1048576/fc)

[=] 02… TC1 NAD is NOT supported, CID is supported

[=] ——————– Historical bytes ——————–

[+] 80

[?] Hint: try `hf mfdes info`

Use magic command via APDU / Proxmark3 14a Raw command to change

Used ISO7816 AQDU
No magic gen1 backdoor commands

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7Byte UID Changeable Card with Desfire EV2 SAK/ATQA

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7Byte UID Changeable Card with Desfire EV2 SAK/ATQA

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