Two main cryptographic keys (per amiibo series/generation):
When an amiibo is scanned by a console (Wii U, Switch, 3DS):
Each amiibo “series” (Smash Bros., Zelda, Animal Crossing, etc.) uses — but all amiibo share the same key per series type (not per figure).
Nintendo’s amiibo figures contain an NFC chip. Data on the chip is split into:
The system was brilliant in its simplicity. When you placed an amiibo on a Wii U GamePad, the console sent a challenge to the chip. The chip used its secret key to mathematically sign the response. If the math checked out, the console unlocked the in-game content. If you tried to copy the data onto a blank sticker or a generic NFC tag, the console would scoff. The copy might look right, but without the specific cryptographic signature generated by the secret key, the console saw an intruder.
Amiibo Encryption Key [repack] -
Two main cryptographic keys (per amiibo series/generation):
When an amiibo is scanned by a console (Wii U, Switch, 3DS):
Each amiibo “series” (Smash Bros., Zelda, Animal Crossing, etc.) uses — but all amiibo share the same key per series type (not per figure).
Nintendo’s amiibo figures contain an NFC chip. Data on the chip is split into:
The system was brilliant in its simplicity. When you placed an amiibo on a Wii U GamePad, the console sent a challenge to the chip. The chip used its secret key to mathematically sign the response. If the math checked out, the console unlocked the in-game content. If you tried to copy the data onto a blank sticker or a generic NFC tag, the console would scoff. The copy might look right, but without the specific cryptographic signature generated by the secret key, the console saw an intruder.
