NSS:SetTWLBannerHMAC
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Request
Index Word | Description |
---|---|
0 | Header code [0x000D0140] |
1-5 | TWL Banner SHA1-HMAC |
Response
Index Word | Description |
---|---|
0 | Header code |
1 | Result code |
Description
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.