Difference between revisions of "Nintendo DS Cart Whitelist"
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Hallowizer (talk | contribs) (→NDHT entry: hash1 is definitely something with the main binary) |
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| − | + | The '''Nintendo DS Cart Whitelist''' is a system title (HNHA / 0003000f484e4841) on DSi and 3DS TWL_MODE that contains a list of whitelisted DS carts. Other carts can be loaded if they have a valid RSA signature, which is how newer DS games load on DSi systems. | |
| − | |||
| − | == | + | == Format == |
| + | Newer versions of the file contain 3 sections: NDHT, NDHX, and NDHI. Older versions only contain NDHT. | ||
| − | + | === Header === | |
| − | + | Each section starts with a 136 byte header. | |
| − | === Header | ||
{| class="wikitable" | {| class="wikitable" | ||
|- style="background-color: #ddd;" | |- style="background-color: #ddd;" | ||
| Line 15: | Line 14: | ||
| 0x00 | | 0x00 | ||
| 4 | | 4 | ||
| − | | | + | | Section type (NDHT, NDHX, NDHI) |
|- | |- | ||
| 0x04 | | 0x04 | ||
| + | | 0x80 | ||
| + | | RSA signature of the entire section below this point. | ||
| + | |- | ||
| 0x84 | | 0x84 | ||
| − | | | + | | 4 |
| + | | Number of entries | ||
|} | |} | ||
| + | === NDHT entry === | ||
| + | NDHT entries correspond to titles and are 48 bytes. The NDHT section is always first. | ||
| − | |||
{| class="wikitable" | {| class="wikitable" | ||
|- style="background-color: #ddd;" | |- style="background-color: #ddd;" | ||
| Line 32: | Line 36: | ||
| 0x00 | | 0x00 | ||
| 4 | | 4 | ||
| − | | | + | | ROM serial |
|- | |- | ||
| 0x04 | | 0x04 | ||
| 4 | | 4 | ||
| − | | | + | | ROM revision |
|- | |- | ||
| 0x08 | | 0x08 | ||
| 20 | | 20 | ||
| − | | | + | | hash1 (HMAC covering parts of the main binary) |
|- | |- | ||
| 0x1C | | 0x1C | ||
| 20 | | 20 | ||
| − | | The | + | | hash2 (overlay?) |
| + | |} | ||
| + | |||
| + | === NDHT footer === | ||
| + | The NDHT footer is 24 bytes. | ||
| + | {| class="wikitable" | ||
| + | |- style="background-color: #ddd;" | ||
| + | ! Start | ||
| + | ! Length | ||
| + | ! Description | ||
| + | |- | ||
| + | | 0x00 | ||
| + | | 24 | ||
| + | | Unknown | ||
| + | |} | ||
| + | |||
| + | === NDHX entry === | ||
| + | {| class="wikitable" | ||
| + | |- style="background-color: #ddd;" | ||
| + | ! Start | ||
| + | ! Length | ||
| + | ! Description | ||
| + | |- | ||
| + | | 0x00 | ||
| + | | 4 | ||
| + | | ROM serial | ||
| + | |- | ||
| + | | 0x04 | ||
| + | | 4 | ||
| + | | ROM revision | ||
| + | |- | ||
| + | | 0x08 | ||
| + | | 20 | ||
| + | | hash3 | ||
| + | |} | ||
| + | |||
| + | === NDHI entry === | ||
| + | {| class="wikitable" | ||
| + | |- style="background-color: #ddd;" | ||
| + | ! Start | ||
| + | ! Length | ||
| + | ! Description | ||
| + | |- | ||
| + | | 0x00 | ||
| + | | 4 | ||
| + | | ROM serial | ||
| + | |- | ||
| + | | 0x04 | ||
| + | | 4 | ||
| + | | ROM revision | ||
| + | |- | ||
| + | | 0x08 | ||
| + | | 64 | ||
| + | | 8 HMAC region struct | ||
| + | |||
| + | {| class="wikitable" | ||
| + | ! Start | ||
| + | ! Length | ||
| + | ! Description | ||
| + | |- | ||
| + | | 0x0 | ||
| + | | 4 | ||
| + | | Unknown (offset?) | ||
| + | |- | ||
| + | | 0x4 | ||
| + | | 4 | ||
| + | | Unknown (length?) | ||
| + | |} | ||
| + | |||
| + | |- | ||
| + | | 0x48 | ||
| + | | 20 | ||
| + | | Expected HMAC | ||
|} | |} | ||
Latest revision as of 04:02, 26 September 2022
The Nintendo DS Cart Whitelist is a system title (HNHA / 0003000f484e4841) on DSi and 3DS TWL_MODE that contains a list of whitelisted DS carts. Other carts can be loaded if they have a valid RSA signature, which is how newer DS games load on DSi systems.
Format
Newer versions of the file contain 3 sections: NDHT, NDHX, and NDHI. Older versions only contain NDHT.
Header
Each section starts with a 136 byte header.
| Start | Length | Description |
|---|---|---|
| 0x00 | 4 | Section type (NDHT, NDHX, NDHI) |
| 0x04 | 0x80 | RSA signature of the entire section below this point. |
| 0x84 | 4 | Number of entries |
NDHT entry
NDHT entries correspond to titles and are 48 bytes. The NDHT section is always first.
| Start | Length | Description |
|---|---|---|
| 0x00 | 4 | ROM serial |
| 0x04 | 4 | ROM revision |
| 0x08 | 20 | hash1 (HMAC covering parts of the main binary) |
| 0x1C | 20 | hash2 (overlay?) |
The NDHT footer is 24 bytes.
| Start | Length | Description |
|---|---|---|
| 0x00 | 24 | Unknown |
NDHX entry
| Start | Length | Description |
|---|---|---|
| 0x00 | 4 | ROM serial |
| 0x04 | 4 | ROM revision |
| 0x08 | 20 | hash3 |
NDHI entry
| Start | Length | Description | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0x00 | 4 | ROM serial | |||||||||
| 0x04 | 4 | ROM revision | |||||||||
| 0x08 | 64 | 8 HMAC region struct
| |||||||||
| 0x48 | 20 | Expected HMAC |