CPUzX wrote:Some games like Metal Gear Solid HD Collection have secondary save encryption in the form of another unique checksum that is only in place for that specific game. pfsSKKey probably did everything right, but there might be another specific checksum for certain games.
I've never used pfsSKKey though, so I maybe wrong, but just thought I'd clarify this.
Ok.
By the way, all my game saves from MLB 14 The Show have two files in the correspondent folder after extraction with psvimgtools: DATA_00.BIN and CRC.BIN. However, this CRC.BIN file looks encrypted to me as well (as DATA_00.BIN) and its size is 32 KB. In this situation I do not even know what is the CRC value to compare the checksum from DATA_00.BIN.
On the other hand, the same game save decrypted with Vita savemanager shows a 4 byte number in CRC.BIN (1KB size) and it is equal (after inverting positions) to the checksum (CRC-32) of DATA_00.BIN calculated in an hex editor.
How to decrypt these kind of game saves either by means of CRC (checksum) or pfsSKKey?
As far as I know checksums detect file modifications comparing the checksum of a file with a value the system knows where to find. If I am missing something here could you please clarify?