CfgI:SetLocalFriendCodeSeedSignature
Request[edit]
| Index Word | Description |
|---|---|
| 0 | Header code [0x080C0042] |
| 1 | Buffer size |
| 2 | 10 | (Size<<4) |
| 3 | Signature buffer |
Response[edit]
| Index Word | Description |
|---|---|
| 0 | Header code |
| 1 | Result code |
Description[edit]
When u8 LocalFriendCodeSeed_state+0x21 == 0, this returns error 0xD8A103F8. This overwrites the LocalFriendCodeSeed RSA-signature data stored in memory(not the one stored in NAND) with the input data. This then writes u8 value zero to LocalFriendCodeSeed_state+0x20.
Setting +0x20 to zero results in most SecureInfo commands being unusable. For those to be usable again, CfgI:VerifySigSecureInfo must be used. The +0x20 u8 will only be restored to value 1 if CfgI:VerifySigSecureInfo is successful.