Difference between revisions of "FSPXI:ImportIntegrityVerificationSeed"
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| Line 37: | Line 37: | ||
| 0x0 | | 0x0 | ||
| 0x10 | | 0x10 | ||
| − | | AES-CCM MAC over the cleartext SEED | + | | AES-CCM MAC over a SHA256 hash, which hashes the first 0x110-bytes of the cleartext SEED |
|- | |- | ||
| 0x10 | | 0x10 | ||
Revision as of 18:10, 22 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-CCM 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-CCM |
Description
This decrypts the input SEED(Unknown whether this is AES-CTR or AES-CCM) and verifies it with the input AES-CCM MAC, verifies the RSA-signature, then writes the data to nand/private/movable.sed.