Request[edit]
| Index Word
|
Description
|
| 0
|
Header code [0x000D0140]
|
| 1-5
|
TWL Banner SHA1-HMAC
|
Response[edit]
| Index Word
|
Description
|
| 0
|
Header code
|
| 1
|
Result code
|
Description[edit]
The input 20-byte data is copied to the NS FIRM parameter buffer at offset 0x4B0.
This is used by Home Menu during TWL title-launch to pass a HMAC-SHA1 of the banner (size varies based on the banner version, etc.) to TWL_FIRM using the TWL and NTR SRL HMAC keys. This is presumably used for comparing against the HMAC stored in the whitelist for titles without RSA.