| Last 3-bytes here are used with the following HMAC. The first byte is normally 0xA5. The remaining bytes are initially(before the Amiibo is written to) all-zero. Byte[2] here is increased 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. The first byte is normally 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 increased each time the Amiibo is written to.
|-
|-
| 0x5
| 0x5
Line 65:
Line 65:
| 0x34
| 0x34
| 0x20
| 0x20
−
| SHA256-HMAC. The first 0x18-bytes of this hash is section3 in the encrypted buffer.
+
| SHA256-HMAC hash. The first 0x18-bytes of this hash is section3 in the encrypted buffer.
|-
|-
| 0x15
| 0x15
Line 71:
Line 71:
| 0x54
| 0x54
| 0x2C
| 0x2C
−
| Unknown, this is plaintext data.
+
| This is plaintext data, see below.
|-
|-
| 0x20
| 0x20
Line 77:
Line 77:
| 0x80
| 0x80
| 0x20
| 0x20
−
| SHA256-HMAC over 0x1DF-bytes: first 3-bytes are from the last 3-bytes of page[4], the rest is over the first 0x1DC-bytes of the plaintext data.
+
| SHA256-HMAC hash over 0x1DF-bytes: first 3-bytes are from the last 3-bytes of page[4], the rest is over the first 0x1DC-bytes of the plaintext data.
|-
|-
| 0x28
| 0x28
Line 90:
Line 90:
| 0x54
| 0x54
| This is section2 in the encrypted buffer.
| This is section2 in the encrypted buffer.
+
|}
+
+
==== Structure of the data starting at page 0x15 ====