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no edit summary
Tickets are found in many encrypted files used by the Wii (e.g. [[WAD Files]] or [[Wiidisc|Wiidiscs]]). They contain the encrypted [http://en.wikipedia.org/wiki/Advanced_Encryption_Standard AES] "title key" and the Title ID of the data and are signed by a certificate from a [[certificate chain]] (which usually is the same for all titles and stored somewhere on the NAND).
Tickets are found in many encrypted files used by the Wii (e.g. [[WAD Files]] or [[Wiidisc]]s). They contain the encrypted [http://en.wikipedia.org/wiki/Advanced_Encryption_Standard AES] "title key" and the Title ID of the data and are signed by a certificate from a [[certificate chain]] (which usually is the same for all titles and stored somewhere on the NAND).
So far only tickets with [http://en.wikipedia.org/wiki/RSA_numbers#RSA-2048 RSA-2048] signatures have been seen. (Discs will only work with those signatures because the size of partition ticket is always 0x2a4)
So far only tickets with [http://en.wikipedia.org/wiki/RSA RSA-2048] signatures have been seen. (Discs will only work with those signatures because the size of partition ticket is always 0x2a4)
=== File structure ===
=== File structure ===
{| class="wikitable"
{| class="wikitable"
|-
|-
| 0x0103
| 0x0103
| 0x100
| 0x100
| Signature by a certificate's key (everything after this field is covered by this signature)
| Signature by a certificate's key
|-
|-
| 0x0104
| 0x0104
| 0x013f
| 0x013F
| 0x3c
| 0x3C
| Padding (Always 0)
| Padding (Always 0 - everything after this field is covered by the above signature)
|-
|-
| 0x0140
| 0x0140
| 0x017f
| 0x017F
| 0x40
| 0x40
| Signature issuer
| Signature issuer
|-
|-
| 0x0180
| 0x0180
| 0x01be
| 0x01BB
| 0x3f
| 0x3C
| Unknown (0, unless it is a VC game)
| ECDH data, used to generate one-time key during install of console specific titles
|-
|-
| 0x01bf
| 0x01BC
| 0x01ce
| 0x01BE
| 0x03
| Unused/Padding
|-
| 0x01BF
| 0x01CE
| 0x10
| 0x10
| Encrypted title key
| Encrypted title key
|-
|-
| 0x01cf
| 0x01CF
| 0x01cf
| 0x01CF
| 0x01
| 0x01
| Unknown
| Unknown
|-
|-
| 0x01d0
| 0x01D0
| 0x01d7
| 0x01D7
| 0x08
| 0x08
| ticket_id
| ticket_id (used as IV for title key decryption of console specific titles)
|-
|-
| Console ID
| Console ID
|-
|-
| 0x01dc
| 0x01DC
| 0x01e3
| 0x01E3
| 0x08
| 0x08
| 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
| 0x01E4
| 0x01e5
| 0x01E5
| 0x02
| 0x02
| Unknown, mostly 0xFFFF
| Unknown, mostly 0xFFFF
|-
|-
| 0x01e6
| 0x01E6
| 0x01e8
| 0x01E7
| 0x02
| 0x02
| Amount of bought DLC contents
| Ticket title version
|-
| 0x01E8
| 0x01EB
| 0x04
| Permitted Titles Mask
|-
| 0x01EC
| 0x01EF
| 0x04
| Permit mask. The current disc title is ANDed with the inverse of this mask to see if the result matches the Permitted Titles Mask.
|-
|-
| 0x01e9
| 0x01F0
| 0x01f0
| 0x01F0
| 0x08
| 0x01
| Unknown
| Title Export allowed using PRNG key (1 = allowed, 0 = not allowed)
|-
|-
| 0x01f1
| 0x01F1
| 0x01f1
| 0x01F1
| 0x01
| 0x01
| Common Key index (1 = Korean Common key, 0 = "normal" Common key)
| Common Key index (2 = [http://wiiubrew.org/wiki/WiiMode Wii U Wii mode], 1 = Korean Common key, 0 = "normal" Common key)
|-
|-
| 0x01f2
| 0x01F2
| 0x0221
| 0x0221
| 0x30
| 0x30
|-
|-
| 0x0222
| 0x0222
| 0x0241
| 0x0261
| 0x20
| 0x40
| Always 0xFF (?)
| Content access permissions (one bit for each content)
|-
|-
| 0x0242
| 0x0262
| 0x0243
| 0x0263
| 0x02
| 0x02
| Padding (Always 0)
| Padding (Always 0)
|-
|-
| 0x0244
| 0x0264
| 0x0247
| 0x0267
| 0x04
| 0x04
| Enable time limit (1 = Enabled, 0 = Disabled)
| Enable time limit (1 = Enabled, 0 = Disabled)
|-
|-
| 0x0248
| 0x0268
| 0x024b
| 0x026B
| 0x04
| 0x04
| Time limit (Seconds)
| Time limit (Seconds)
|-
|-
| 0x024c
| 0x026C
| 0x02a3
| 0x02A3
| 0x58
| 0x38
| Padding (Always 0)
| 7 more time_limit structs as above ({int enable, seconds})
|}
|}
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).
[[Category:File formats]]