SLB2: Difference between revisions
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| Line 21: | Line 21: | ||
| 0x0 || 0x4 || <code>0x64B2C8E5</code> Magic | | 0x0 || 0x4 || <code>0x64B2C8E5</code> Magic | ||
|- | |- | ||
| 0x4 || 0x4 || | | 0x4 || 0x4 || Data segment location | ||
|- | |- | ||
| 0x8 || 0x4 || Unknown | | 0x8 || 0x4 || Unknown | ||
| Line 31: | Line 31: | ||
| 0x14 || 0xC || Unknown | | 0x14 || 0xC || Unknown | ||
|- | |- | ||
| 0x20 || 0x20 || | | 0x20 || 0x20 || Data segment SHA256 | ||
|- | |- | ||
| 0x40 || 0x10 || System Software version in ASCII (ex: "0000360000000000") | | 0x40 || 0x10 || System Software version in ASCII (ex: "0000360000000000") | ||
| Line 37: | Line 37: | ||
| 0x50 || 0x90 || Zero | | 0x50 || 0x90 || Zero | ||
|- | |- | ||
| 0xE0 || | | 0xE0 || 0x1E0 || Encrypted Header | ||
|} | |} | ||
Revision as of 12:47, 2 January 2019
SLB2 is the format used to store the encrypted bootloaders on the device.
Structure
See [SLB2 structure]
SLB2 embedded ENC Files
On 3.50 reset, 3.60 retail:
- second_loader.enp_, size: 0xD400 bytes
- second_loader.enp, size: 0xD400 bytes
- secure_kernel.enp_, size: 0x8400 bytes
- secure_kernel.enp, size: 0x8400 bytes
ENC file structure
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x4 | 0x64B2C8E5 Magic
|
| 0x4 | 0x4 | Data segment location |
| 0x8 | 0x4 | Unknown |
| 0xC | 0x4 | Unknown/Zero |
| 0x10 | 0x4 | Data size |
| 0x14 | 0xC | Unknown |
| 0x20 | 0x20 | Data segment SHA256 |
| 0x40 | 0x10 | System Software version in ASCII (ex: "0000360000000000") |
| 0x50 | 0x90 | Zero |
| 0xE0 | 0x1E0 | Encrypted Header |
The last 0x340 bytes is a footer that likely contains a signed MAC of the plaintext data.