Mii Maker: Difference between revisions

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== Mii QR Code format ==

3DS Mii QR is a standard 57x57 pixel Level 10 High ECC QR code with 'Mii' logo in center (refer to [http://www.denso-wave.com/qrcode Denso-Wave Inc] web site for QR Code format specifications). It contain 112 byte of binary data. 3DS seems to have fully implemented QR-code decoder, as it can interpret such Mii binary data being encoded even in the smallest possible for that data size Level 6 Low ECC QR code. The data itself is ~~ciphered~~, ~~algorithm is unknown yet~~.

3DS Mii QR is a standard 57x57 pixel Level 10 High ECC QR code with 'Mii' logo in center (refer to [http://www.denso-wave.com/qrcode Denso-Wave Inc] web site for QR Code format specifications). It contain 112 byte of binary data. 3DS seems to have fully implemented QR-code decoder, as it can interpret such Mii binary data being encoded even in the smallest possible for that data size Level 6 Low ECC QR code. The data itself is encrypted, presumably AES-CTR since some xorpads can be determined from known plaintext here. The CTR might be based on data stored here?

{| class="wikitable"

Line 33:

| 0x1A

| 0x14

| ~~UTF~~-16 Mii Name

| UCS-2 Mii Name

|-

| 0x2E

Line 41:

| 0x48

| 0x14

| ~~UTF~~-16 Author Name

| UCS-2 Author Name

|-

| 0x5C

Line 53:

| 0x60

| 0x10

| ~~Checksum (Hash)~~

| AES-CCM MAC?

|}

* Codes made from the same 3DS for the same Mii are encrypted with the same xorpad (you can recreate it by xoring with known values from this table).

@@ Line 7: / Line 7: @@
 == Mii QR Code format ==
-DS Mii QR is a standard 57x57 pixel Level 10 High ECC QR code with 'Mii' logo in center (refer to [http://www.denso-wave.com/qrcode Denso-Wave Inc] web site for QR Code format specifications). It contain 112 byte of binary data. 3DS seems to have fully implemented QR-code decoder, as it can interpret such Mii binary data being encoded even in the smallest possible for that data size Level 6 Low ECC QR code. The data itself is ciphered, algorithm is unknown yet.
+DS Mii QR is a standard 57x57 pixel Level 10 High ECC QR code with 'Mii' logo in center (refer to [http://www.denso-wave.com/qrcode Denso-Wave Inc] web site for QR Code format specifications). It contain 112 byte of binary data. 3DS seems to have fully implemented QR-code decoder, as it can interpret such Mii binary data being encoded even in the smallest possible for that data size Level 6 Low ECC QR code. The data itself is encrypted, presumably AES-CTR since some xorpads can be determined from known plaintext here. The CTR might be based on data stored here?
 {| class="wikitable"
@@ Line 33: / Line 33: @@
 | 0x1A
 | 0x14
-| UTF-16 Mii Name
+| UCS-2 Mii Name
 |-
 | 0x2E
@@ Line 41: / Line 41: @@
 | 0x48
 | 0x14
-| UTF-16 Author Name
+| UCS-2 Author Name
 |-
 | 0x5C
@@ Line 53: / Line 53: @@
 | 0x60
 | 0x10
-| Checksum (Hash)
+| AES-CCM MAC?
 |}
 * Codes made from the same 3DS for the same Mii are encrypted with the same xorpad (you can recreate it by xoring with known values from this table).