Used by the Save Data Transfer Tool. Initializes internal FS state by generating 20 random bytes of data, where the first 16 are presumably used for encryption and the other 4 are returned as a “key”. After calling this, the Save Data Transfer Tool uses the “key” to open the save data for the title it’s processing (ArchiveID 0x2345678A, file path [0] = 4, [1] = save move “key”, [2-4] left as zeros).