Difference between revisions of "AMPXI:ValidateDSiWareMovableSedHash"
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|- | |- | ||
| 1 | | 1 | ||
| − | | Buf0 size | + | | Buf0 size (must be 0x10) |
|- | |- | ||
| 2 | | 2 | ||
| − | | Buf1 size | + | | Buf1 size (must be 0x20) |
|- | |- | ||
| 3 | | 3 | ||
| − | | Buf0Size<<8 <nowiki>|</nowiki> 0x4 | + | | (Buf0Size << 8) <nowiki>|</nowiki> 0x4 |
|- | |- | ||
| 4 | | 4 | ||
| − | | Buf0 | + | | Buf0 pointer |
|- | |- | ||
| 5 | | 5 | ||
| − | | Buf1Size<<8 <nowiki>|</nowiki> 0x14 | + | | (Buf1Size << 8) <nowiki>|</nowiki> 0x14 |
|- | |- | ||
| 6 | | 6 | ||
| − | | Buf1 | + | | Buf1 pointer |
|} | |} | ||
| Line 34: | Line 34: | ||
|- | |- | ||
| 0 | | 0 | ||
| − | | Header code | + | | Header code [0x00530040] |
|- | |- | ||
| 1 | | 1 | ||
| Line 43: | Line 43: | ||
This calculates a SHA-256 hash over the 0x130-byte data from [[FSPXI:ExportIntegrityVerificationSeed]]. When the calculated hash matches the hash stored in buf1, result-code 0xC8A0802E is returned, otherwise result-code 0xC8A0802F is returned. | This calculates a SHA-256 hash over the 0x130-byte data from [[FSPXI:ExportIntegrityVerificationSeed]]. When the calculated hash matches the hash stored in buf1, result-code 0xC8A0802E is returned, otherwise result-code 0xC8A0802F is returned. | ||
| − | The 0x10-byte buf0 data is copied to internal memory, however this data is not used after it's copied. | + | The 0x10-byte buf0 data is copied to internal memory, however this data is not used after it's copied. This command is used by [[Application_Manager_Services_PXI|AM]] module to verify the hash stored in the [[DSiWare_Exports|DSiWare]] export header, when AM uses this command buf0 contains the encrypted AES block from the header. |
Latest revision as of 03:08, 10 January 2016
Request[edit]
| Index Word | Description |
|---|---|
| 0 | Header code [0x00530084] |
| 1 | Buf0 size (must be 0x10) |
| 2 | Buf1 size (must be 0x20) |
| 3 | (Buf0Size << 8) | 0x4 |
| 4 | Buf0 pointer |
| 5 | (Buf1Size << 8) | 0x14 |
| 6 | Buf1 pointer |
Response[edit]
| Index Word | Description |
|---|---|
| 0 | Header code [0x00530040] |
| 1 | Result code |
Description[edit]
This calculates a SHA-256 hash over the 0x130-byte data from FSPXI:ExportIntegrityVerificationSeed. When the calculated hash matches the hash stored in buf1, result-code 0xC8A0802E is returned, otherwise result-code 0xC8A0802F is returned.
The 0x10-byte buf0 data is copied to internal memory, however this data is not used after it's copied. This command is used by AM module to verify the hash stored in the DSiWare export header, when AM uses this command buf0 contains the encrypted AES block from the header.