Key | Amiibo Encryption

For those creating custom amiibo cards or backing up their collections, the key_retail.bin file is essential. It is typically used in the following way:

Every amiibo contains an NFC (Near Field Communication) chip. This is a standard off-the-shelf component made by NXP Semiconductors. Critically, standard NTAG215 chips have a fixed memory layout: 540 bytes of user memory divided into 135 pages (4 bytes each). amiibo encryption key