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 contains 0x70-bytes of binary data. 3DS seems to have a 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 with AES-CCM, xorpads can be determined from known plaintext here. The Mii Maker application uses the [[NS]] APT Wrap/Unwrap commands to encrypt/decrypt this Mii data. For the NS [[APT:Unwrap|Unwrap]] command, the Mii Maker application uses blocksize=12, noncesize=10, and inputbuffer-size=0x60.

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 contains 0x70-bytes of binary data. 3DS seems to have a 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 with AES-CCM, xorpads can be determined from known plaintext here. The Mii Maker application uses the [[NS]] APT Wrap/Unwrap commands to encrypt/decrypt this Mii data. For the NS [[APT:Unwrap|Unwrap]] command, the Mii Maker application uses blocksize=12, noncesize=10, and inputbuffer-size=0x60. The first 8-bytes(cleartext MiiID+MAC address) in the below Mii data is the nonce used with the NS Unwrap/Wrap commands, the rest of the data at 0x8-0x5F is encrypted.

{| class="wikitable"

Line 31:

Line 33:

| 0x8

| 0x1

| ~~unknown~~

| Unknown, the encrypted data begins here.

|-

| 0x9

Line 87:

Line 89:

| 0x5E

| 0x2

| unknown ~~(seems like the start of the checksum)~~

| unknown

|-

| 0x60

@@ 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 contains 0x70-bytes of binary data. 3DS seems to have a 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 with AES-CCM, xorpads can be determined from known plaintext here. The Mii Maker application uses the [[NS]] APT Wrap/Unwrap commands to encrypt/decrypt this Mii data. For the NS [[APT:Unwrap|Unwrap]] command, the Mii Maker application uses blocksize=12, noncesize=10, and inputbuffer-size=0x60.
+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 contains 0x70-bytes of binary data. 3DS seems to have a 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 with AES-CCM, xorpads can be determined from known plaintext here. The Mii Maker application uses the [[NS]] APT Wrap/Unwrap commands to encrypt/decrypt this Mii data. For the NS [[APT:Unwrap|Unwrap]] command, the Mii Maker application uses blocksize=12, noncesize=10, and inputbuffer-size=0x60. The first 8-bytes(cleartext MiiID+MAC address) in the below Mii data is the nonce used with the NS Unwrap/Wrap commands, the rest of the data at 0x8-0x5F is encrypted.
 {| class="wikitable"
@@ Line 31: / Line 33: @@
 | 0x8
 | 0x1
-| unknown
+| Unknown, the encrypted data begins here.
 |-
 | 0x9
@@ Line 87: / Line 89: @@
 | 0x5E
 | 0x2
-| unknown (seems like the start of the checksum)
+| unknown
 |-
 | 0x60