Difference between revisions of "Ticket"
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(Fixed bad offsets. Caused by adding a decimal number to a hex number without converting, most likely (LOL)) |
(Added some padding, also added ending locations) |
||
| Line 6: | Line 6: | ||
|- | |- | ||
! Start | ! Start | ||
| + | ! End | ||
! Length | ! Length | ||
! Description | ! Description | ||
|- | |- | ||
| − | | | + | | 0x0000 |
| + | | 0x0004 | ||
| 4 | | 4 | ||
| Signature type (always 0x10001 for RSA-2048) | | Signature type (always 0x10001 for RSA-2048) | ||
|- | |- | ||
| − | | | + | | 0x0004 |
| + | | 0x0104 | ||
| 256 | | 256 | ||
| Signature by a certificate's key (everything after this field is covered by this signature) | | Signature by a certificate's key (everything after this field is covered by this signature) | ||
|- | |- | ||
| − | | | + | | 0x0104 |
| + | | 0x0140 | ||
| + | | 60 | ||
| + | | Padding (Always 0) | ||
| + | |- | ||
| + | | 0x0140 | ||
| + | | 0x0180 | ||
| 64 | | 64 | ||
| Signature issuer | | Signature issuer | ||
|- | |- | ||
| − | | | + | | 0x0180 |
| + | | 0x01bf | ||
| + | | 63 | ||
| + | | Padding (Always 0) | ||
| + | |- | ||
| + | | 0x01bf | ||
| + | | 0x01cf | ||
| 16 | | 16 | ||
| Encrypted title key | | Encrypted title key | ||
|- | |- | ||
| − | | | + | | 0x01cf |
| + | | 0x01bf | ||
| + | | 16 | ||
| + | | Unknown | ||
| + | |- | ||
| + | | 0x01dc | ||
| + | | 0x01e4 | ||
| 8 | | 8 | ||
| Title ID / [http://en.wikipedia.org/wiki/Initialization_Vector Initialization Vector] (IV) used for AES-[http://en.wikipedia.org/wiki/Cipher_Block_Chaining#Cipher-block_chaining_.28CBC.29 CBC] encryption | | Title ID / [http://en.wikipedia.org/wiki/Initialization_Vector Initialization Vector] (IV) used for AES-[http://en.wikipedia.org/wiki/Cipher_Block_Chaining#Cipher-block_chaining_.28CBC.29 CBC] encryption | ||
|- | |- | ||
| − | | | + | | 0x01e4 |
| + | | 0x01f1 | ||
| + | | 13 | ||
| + | | Padding (Always 0) | ||
| + | |- | ||
| + | | 0x01f1 | ||
| + | | 0x01f2 | ||
| 1 | | 1 | ||
| Common Key index (1 = Korean Common key, 0 = "normal" Common key) | | Common Key index (1 = Korean Common key, 0 = "normal" Common key) | ||
|- | |- | ||
| − | | | + | | 0x01f2 |
| + | | 0x0222 | ||
| + | | 48 | ||
| + | | Padding (Always 0) | ||
| + | |- | ||
| + | | 0x0222 | ||
| + | | 0x0242 | ||
| 32 | | 32 | ||
| Always 0xFF (?) | | Always 0xFF (?) | ||
|- | |- | ||
| − | | | + | | 0x0242 |
| + | | 0x0244 | ||
| + | | 2 | ||
| + | | Padding (Always 0) | ||
| + | |- | ||
| + | | 0x0244 | ||
| + | | 0x0248 | ||
| 4 | | 4 | ||
| Enable time limit (1 = Enabled, 0 = Disabled) | | Enable time limit (1 = Enabled, 0 = Disabled) | ||
|- | |- | ||
| − | | | + | | 0x0248 |
| + | | 0x024a | ||
| 4 | | 4 | ||
| Time limit (Seconds) | | Time limit (Seconds) | ||
| + | |- | ||
| + | | 0x024a | ||
| + | | 0x02a4 | ||
| + | | 90 | ||
| + | | Padding (Always 0) | ||
|} | |} | ||
To get the title key decrypt the 16 bytes at offset 0x1bf with the Common Key using the Title ID (offset 0x1dc) as the initialization vector (the last 8 bytes of the IV should be zero). | To get the title key decrypt the 16 bytes at offset 0x1bf with the Common Key using the Title ID (offset 0x1dc) as the initialization vector (the last 8 bytes of the IV should be zero). | ||
Revision as of 09:29, 3 November 2008
Tickets are found in many encrypted files used by the Wii (e.g. WAD Files or Wiidiscs). They contain the encrypted AES "title key" and the Title ID of the data followed by a certificate chain. So far only tickets with RSA-2048 signatures have been seen. (Discs will only work with those signatures because the size of partition ticket is always 0x2a4)
File structure
| Start | End | Length | Description |
|---|---|---|---|
| 0x0000 | 0x0004 | 4 | Signature type (always 0x10001 for RSA-2048) |
| 0x0004 | 0x0104 | 256 | Signature by a certificate's key (everything after this field is covered by this signature) |
| 0x0104 | 0x0140 | 60 | Padding (Always 0) |
| 0x0140 | 0x0180 | 64 | Signature issuer |
| 0x0180 | 0x01bf | 63 | Padding (Always 0) |
| 0x01bf | 0x01cf | 16 | Encrypted title key |
| 0x01cf | 0x01bf | 16 | Unknown |
| 0x01dc | 0x01e4 | 8 | Title ID / Initialization Vector (IV) used for AES-CBC encryption |
| 0x01e4 | 0x01f1 | 13 | Padding (Always 0) |
| 0x01f1 | 0x01f2 | 1 | Common Key index (1 = Korean Common key, 0 = "normal" Common key) |
| 0x01f2 | 0x0222 | 48 | Padding (Always 0) |
| 0x0222 | 0x0242 | 32 | Always 0xFF (?) |
| 0x0242 | 0x0244 | 2 | Padding (Always 0) |
| 0x0244 | 0x0248 | 4 | Enable time limit (1 = Enabled, 0 = Disabled) |
| 0x0248 | 0x024a | 4 | Time limit (Seconds) |
| 0x024a | 0x02a4 | 90 | Padding (Always 0) |
To get the title key decrypt the 16 bytes at offset 0x1bf with the Common Key using the Title ID (offset 0x1dc) as the initialization vector (the last 8 bytes of the IV should be zero).