Mifare GDM Configs

gdmcfg

7A FF <- Allow gen1a magic auth
85 00 00 00 00 00 00 00 00 00 5A 5A 00 00 00 08 <- Shadow mode enabled
85 00 00 00 00 00 00 5A 00 FF 00 5A 00 00 00 08 <- CUID mode enabled + MFC EV1 Perso mode + shadow mode disabled
7A FF 00 00 00 00 00 00 BA FA 5A 5A 00 00 00 08 <- allow gen1a magic commands to persistant memory 
85 00 00 00 00 00 5A 00 00 5A 00 5A 00 5A 00 08 <- switch to 7B GDM operation after using GDM script (DO NOT WRITE THIS CONFIG UNLESS YOUR TAG IS IN 7B OPERATION)

hf mf gdmsetcfg -d "7A FF 00 00 00 00 00 5A BA FA 5A 5A 00 00 00 08"
gen1a + CUID + shadow mode + gdm auth

hf mf gdmsetcfg -d "85 00 00 00 00 00 00 5A 00 FF 00 5A 00 00 00 08"
CUID + gdm auth

MKF tag presets 

m4
hf mf wrbl --blk 0 -d "00 00 00 00 00 08 04 00 CD 01 0F 2C CD 80 AB 11" --force 

n4
hf mf gen3blk -d "00 00 00 00 00 18 02 00 CD 01 0F 2C CD 81 F0 44"  

n7
hf mf gen3blk -d "00 00 00 00 00 00 00 18 42 00 01 A4 CD 81 AD 24"




hf 14a raw -akb 7 40; hf 14a raw -k 43; hf 14a raw -c e000
check config

hf 14a raw -akb 7 20; hf 14a raw -k 23; hf 14a raw -c e000
check config with alt magic wakeup 

hf 14a raw -akb 7 40; hf 14a raw -k 43; hf 14a raw -c -k -a E100; hf 14a raw -c -a "7A FF 00 00 00 00 00 5A BA FA 00 00 00 00 00 08" 
CUID + gen1 for UFUID tag

hf 14a raw -akb 7 40; hf 14a raw -k 43; hf 14a raw -c -k -a E100; hf 14a raw -c -a "85 00 00 00 00 00 00 5A BA FA 00 00 00 00 00 08"
CUID only

hf 14a raw -akb 7 40; hf 14a raw -k 43; hf 14a raw -c -k -a E100; hf 14a raw -c -a "85 00 00 00 00 00 00 5A BA FA 00 00 00 00 00 08"; hf mf wrbl --blk 0 -d "00 00 00 00 00 08 04 00 CD 01 0F 2C CD 80 AB 11" --force
CUID MKF m4 4B UID  

lf t5 write -b 0 -d 000880E0 -t; lf t5 restore -f mrkeyfob1.json 
unlock pg1 and encode MKF t5577 tag


850000000000005A00FF005A00000008 
85000000000000000000000000000008
                  ^^             >> MFC EV1 CL2 Perso config*
                  
USCUID-UL

UL 11
hf 14a raw -sck E2007AFF00A0; hf 14a raw -ck E20100000AC3; hf 14a raw -ck E20200040301; hf 14a raw -c E20301000B03 

UL 21
hf 14a raw -sck E2007AFF00A0; hf 14a raw -ck E20100000A3C; hf 14a raw -ck E20200040301; hf 14a raw -c E20301000E03 

UL C
hf 14a raw -sck E2007AFF00A0; hf 14a raw -ck E2010A000A00; hf 14a raw -ck E20200000000; hf 14a raw -c E20300000000

NTAG213
hf 14a raw -sck E2007AFF85A0; hf 14a raw -ck E20100000AA5; hf 14a raw -ck E20200040402; hf 14a raw -c E20301000F03
                  

mrkeyfob1.json

{
  "Created": "proxmark3",
  "FileType": "t55x7",
  "Card": {
    "ConfigBlock": "001070D0"
  },
  "blocks": {
    "0": "001070D0",
    "1": "CD010F2C",
    "2": "00000000",
    "3": "00000000",
    "4": "00000000",
    "5": "00000000",
    "6": "00000000",
    "7": "E9920427",
    "8": "001070D0",
    "9": "CD010F2C",
    "10": "CD81F044",
    "11": "00A00003"
  }
}