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Amiibo: Difference between revisions

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Wii U's ntag.rpl calls this field "Format version"
Create table for nfc page 0x4
 
Line 38: Line 38:
| 0x4
| 0x4
| style="background: green" | Yes
| style="background: green" | Yes
| Last 3-bytes here are used with the following HMAC where the size is 0x1DF-bytes. The u16 starting at byte1 is used for the first two bytes in the 0x40-byte input buffer for Amiibo [[Process_Services_PXI|crypto]] init. The first byte must be 0xA5. The remaining bytes are initially(before the Amiibo is written to) all-zero. Byte[2](maybe big-endian u16 starting at byte1?) here is incremented each time the Amiibo is written to.
| Last 3-bytes here are used with the following HMAC where the size is 0x1DF-bytes. The u16 starting at byte1 is used for the first two bytes in the 0x40-byte input buffer for Amiibo [[Process_Services_PXI|crypto]] init.
{| class="wikitable" border="1"
|-
!  Offset
!  Size
!  Description
|-
| 0x0
| 0x1
| Magic (Always 0xA5)
|-
| 0x1
| 0x2
| Incremented each time the Amiibo is written to.
|-
| 0x3
| 0x1
| Figure version (always 0x00)
|}
|-
|-
| 0x5
| 0x5
Line 166: Line 184:
| 0x7
| 0x7
| 0x1
| 0x1
| Version
| Format Version
| Always 0x02
| Always 0x02
|}
|}
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