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[[Category:File formats]]
[[Category:File formats]]
'''Title metadata''' is a format used to store information about a title (a single standalone game, channel, etc.) and all its installed contents, including which contents they consist of and their SHA1 hashes.
'''Title metadata''' is a format used to store information about a title (installed title, DLC, etc.) and all its installed contents, including which contents they consist of and their SHA256 hashes.
[http://git.daifukkat.su/?p=3dshax.git Code is available] by trap15 to parse the available information from the 3DS format of TMDs.
[http://git.daifukkat.su/?p=3dshax.git Code is available] by trap15 to parse the available information from the 3DS format of TMDs.
== Structure ==
== Structure ==
All the data in the file represented in Big Endian.
All the data in the file represented in Big Endian.
{| class="wikitable"
{| class="wikitable"
| align="center" style="background:#f0f0f0;"|'''Offset'''
| align="center" style="background:#f0f0f0;"|'''Offset'''
| align="center" style="background:#f0f0f0;"|'''Size'''
| align="center" style="background:#f0f0f0;"|'''Size'''
| align="center" style="background:#f0f0f0;"|'''Description'''
| align="center" style="background:#f0f0f0;"|'''Description'''
|-
|-
| ''RSA 2048''||''RSA 4096''||||
| 0x0||Y||Signature Data
|-
|-
| 0x000||0x000||4||Signature type
| Y ||0xC4||Header
|-
|-
| 0x004||0x004||256 / 512||Signature
| 0xC4 + Y||0x24*64||Content Info Records.
|-
|-
| 0x104||0x204||60||Padding modulo 64
| 0x9C4 + Y||0x30*ContentCount||Content Chunk Records.
|}
=== Signature Data ===
The total size of this section is referred to as "Y" in the overall TMD structure. The signature is of the header of the TMD.
{| class="wikitable"
| align="center" style="background:#f0f0f0;"|'''Offset'''
| align="center" style="background:#f0f0f0;"|'''Size'''
| align="center" style="background:#f0f0f0;"|'''Description'''
|-
|-
| 0x140||0x240||64||Issuer
| 0x0||0x4||Signature Type
|-
|-
| 0x180||0x280||1||Version
| 0x4 ||X||Signature
|-
|-
| 0x181||0x281||1||ca_crl_version
| 0x4 + X|| ||Padding Aligning the signature data to 0x40 bytes
|}
==== Signature Type ====
{| class="wikitable"
|-
|-
! Value
! Signature Method
! Signature Size (X)
|-
|-
| 0x183||0x283||1||Padding modulo 64
| 0x010000
| RSA_4096 SHA1
| 0x200
|-
|-
| 0x184||0x284||8||System Version
| 0x010001
| RSA_2048 SHA1
| 0x100
|-
|-
| 0x18C||0x28C||8||Title ID
| 0x010002
| Elliptic Curve
| 0x40
|-
|-
| 0x194||0x294||4||Title type
| 0x010003
| RSA_4096 SHA256
| 0x200
|-
|-
| 0x198||0x298||2||Group ID
| 0x010004
| RSA_2048 SHA256
| 0x100
|}
=== Header ===
{| class="wikitable"
| align="center" style="background:#f0f0f0;"|'''Offset'''
| align="center" style="background:#f0f0f0;"|'''Size'''
| align="center" style="background:#f0f0f0;"|'''Description'''
|-
| 0x0||0x40||Signature Issuer
|-
| 0x40||0x1||Version
|-
| 0x41||0x1||ca_crl_version
|-
| 0x42||0x1||signer_crl_version
|-
| 0x43||0x1||Reserved
|-
| 0x44||0x8||System Version
|-
| 0x4C||0x8||Title ID
|-
|-
| 0x19A||0x29A||62||reserved
| 0x54||0x4||Title Type
|-
|-
| 0x1D8||0x2D8||4||Access rights
| 0x58||0x2||Group ID
|-
|-
| 0x1DC||0x2DC||2||Title version
| 0x5A||0x3C||Reserved
|-
|-
| 0x1DE||0x2DE||2||Number of contents (contcount)
| 0x98||0x4||Access Rights
|-
|-
| 0x1E0||0x2E0||2||Boot content
| 0x9C||0x2||Title Version
|-
|-
| 0x1E2||0x2E2||2||Padding
| 0x9E||0x02||Content Count
|-
|-
| 0x1E4||0x2E4||32||SHA-256 hash of the 36*64 byte long content info record blob (next field)
| 0xA0||0x2||Boot Content
|-
|-
| 0x204||0x304||36*64||Content info records
| 0xA2||0x2||Padding
|-
|-
| 0xB04||0xC04||48*contcount|| Content chunk records
| 0xA4||0x20||SHA-256 Hash of the Content Info Records
|}
|}
=== Content info records ===
=== Content Info Records ===
There are 64 of these records, usually only the first is used.
{| class="wikitable"
{| class="wikitable"
|-
|-
=== Content chunk records ===
=== Content chunk records ===
There is one of these for each content contained in this title. (Determined by "Content Count" in the TMD Header).
{| class="wikitable"
{| class="wikitable"
|-
|-
|-
|-
| 0x10
| 0x10
| 32
| 0x20
| SHA-256 hash
| SHA-256 hash
|}
|}
=== Content Index ===
==== Content Index ====
This indicates the content type:
This indicates the content type:
|}
|}
=== Content Type flags ===
==== Content Type flags ====
{| class="wikitable"
{| class="wikitable"
|-
|-