Amiibo Encryption Key

Encryption prevents:

⚠️ Actual per-figure uniqueness comes from + write counters + salt , not per-device keys. amiibo encryption key

This key handles the "locked" or immutable sectors of the NFC tag. It signs fixed information such as the amiibo type and the unique UID of the chip. This prevents simple cloning, as the digital signature is tied to the specific hardware ID of the original tag. How the Keys Are Used amiibo encryption key

| Key | Length | Purpose | |------|--------|---------| | | 128 bits | Encrypts the “dynamic” part of the tag (save data, counters) | | HMAC Key | 128 bits | Ensures integrity & authenticity of the encrypted data | amiibo encryption key