I succesfully did an HF autopwn of my tag with below output:
" pm3 → hf search
[-] Searching for ISO14443-A tag…
[+] UID: 04 XX XX XX XX XX XX
[+] ATQA: 00 44
[+] SAK: 08 
[+] MANUFACTURER: NXP Semiconductors Germany
[+] Possible types:
[+] MIFARE Classic 1K CL2
[=] proprietary non iso14443-4 card found, RATS not supported
[+] Prng detection: hard
[=] — Tag Signature
[=] IC signature public key name: NXP Mifare Classic MFC1C14_x
[=] IC signature public key value: 044F6D3F294DEA5737F0F46FFEE88A356EED95695DD7E0C27A591E6F6F65962BAF
[=] Elliptic curve parameters: NID_secp128r1
[=] TAG IC Signature: 13503AFF5FB4BCBCD324909BC63C7CAD55AE3885899CAFFCF1C703FC4242885E
[+] Signature verification: successful
[?] Hint: try hf mf commands
I tried the cload command on a changeable UID tag, it works but afterwards i get no reaction from HF search. I tried the same process with an gen1 and gen2 card.
On the last 2 cards i get “Card doesn’t support standard iso14443-3 anticollision”
I already tried to search on this forum and the www. but to no avail.
To answer shortly to make a spare of my tag for charging my electric car.
I’m someone who loses his stuff very easily.
No, i don’t use implants. Preferably i would like to have a spare tag above the card.
I already bought a 7byte tag from above mentioned link.