Difference between revisions of "FSPXI:ImportIntegrityVerificationSeed"
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| 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 | ||
| Line 45: | Line 45: | ||
=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]]. |
Revision as of 05:39, 27 August 2012
Request
| Index Word | Description |
|---|---|
| 0 | Header code [0x00460002] |
| 1 | Always 0x00013004, for 0x130 size: (size<<8) | 4 |
| 2 | Input IntegrityVerificationSeed pointer |
Response
| Index Word | Description |
|---|---|
| 0 | Header code |
| 1 | Result code |
IntegrityVerificationSeed
| 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-CTR using the above MAC for the counter. |
Description
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.