Difference between revisions of "FSPXI:ImportIntegrityVerificationSeed"
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| Line 6: | Line 6: | ||
|- | |- | ||
| 0 | | 0 | ||
| − | | Header code [ | + | | Header code [0x00450002] |
|- | |- | ||
| 1 | | 1 | ||
| − | | Always | + | | Always 0x00013006, for 0x130 size: (size<<8) <nowiki>|</nowiki> 6 |
|- | |- | ||
| 2 | | 2 | ||
| Line 37: | Line 37: | ||
| 0x0 | | 0x0 | ||
| 0x10 | | 0x10 | ||
| − | | AES- | + | | AES-CBC MAC over a SHA256 hash, which hashes the first 0x110-bytes of the cleartext SEED. |
|- | |- | ||
| 0x10 | | 0x10 | ||
| 0x120 | | 0x120 | ||
| − | | The [[nand/private/movable.sed]], encrypted with AES- | + | | The [[nand/private/movable.sed]], encrypted with AES-CBC using the above MAC for the counter. |
|} | |} | ||
=Description= | =Description= | ||
| − | This decrypts the input SEED and verifies it with the input AES- | + | This decrypts the input SEED and verifies it with the input AES-CBC MAC, verifies the RSA-signature, then writes the data to [[nand/private/movable.sed]]. |
Latest revision as of 11:31, 28 July 2020
Request[edit]
| Index Word | Description |
|---|---|
| 0 | Header code [0x00450002] |
| 1 | Always 0x00013006, for 0x130 size: (size<<8) | 6 |
| 2 | Input IntegrityVerificationSeed pointer |
Response[edit]
| Index Word | Description |
|---|---|
| 0 | Header code |
| 1 | Result code |
IntegrityVerificationSeed[edit]
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x10 | AES-CBC MAC over a SHA256 hash, which hashes the first 0x110-bytes of the cleartext SEED. |
| 0x10 | 0x120 | The nand/private/movable.sed, encrypted with AES-CBC using the above MAC for the counter. |
Description[edit]
This decrypts the input SEED and verifies it with the input AES-CBC MAC, verifies the RSA-signature, then writes the data to nand/private/movable.sed.