Nintendo DS Cart Whitelist
Revision as of 05:10, 25 September 2022 by Hallowizer (talk | contribs) (→Header Structure: 0x04 is an RSA signature)
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.
Basic File Structure
The file consists in one header, a list of titles and a footer. Note: this page only covers the initial versions of the whitelist. Later versions also have NDHX and NDHI sections and have footer differences.
Header Structure
The header is 136 bytes.
| Start | Length | Description |
|---|---|---|
| 0x00 | 4 | An ID (NDHT) |
| 0x04 | 0x80 | RSA signature of the entire NDHT section below this point. |
| 0x84 | 4 | Number of titles in NDHT section |
Title Structure
A title is 48 bytes.
| Start | Length | Description |
|---|---|---|
| 0x00 | 4 | ROM serial |
| 0x04 | 4 | ROM revision |
| 0x08 | 20 | The first SHA-1 sum |
| 0x1C | 20 | The second SHA-1 sum |
The footer is 24 bytes.
| Start | Length | Description |
|---|---|---|
| 0x00 | 24 | Unknown |