Difference between revisions of "Sealedkey"
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(Created page with "=== File Structure === {| class="wikitable" |- ! Offset !! Size !! Description |- | 0x0 || 0x8 || magic "pfsSKKey" |- | 0x8 || 0x4 || Type (always 2) |- | 0xC || 0x4 || 00 Fi...") |
(No difference)
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Revision as of 17:52, 26 May 2015
File Structure
Offset | Size | Description |
---|---|---|
0x0 | 0x8 | magic "pfsSKKey" |
0x8 | 0x4 | Type (always 2) |
0xC | 0x4 | 00 Filler |
0x10 | 0x10 | IV for encrypted key |
0x20 | 0x10 | Encrypted key |
0x30 | 0x20 | HMAC Value |
The first step is to check the HMAC of the file. The process is to use the HMAC key from the Keys#PFS_Secret_Keys page to check the HMAC at position 0x30 in the file. If it is correct, it proceeds to use the pfsSKKey_EncKey to decrypt the value at 0x30 using the value at 0x20 as the IV.