SELF File Format

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ORBIS SELFs from PS4 have a somewhat different structure from the ones we see on vita and ps3. The structure is documented as follows:

SELF Header Structure

Offset Size Description Notes
0 4 Magic 4F 15 3D 1D
0x4 4 Unknown Always 00 01 01 12
0x8 1 Unknown Always 1
0x9 1 Key Type 0xC SK, 0xF SL, 0xE SM, 0x8 EBOOT and ELF and SELF, 0x9 SPRX and SDLL and SEXE
0xA 2 Padding
0xC 2 MetaData Offset
0xE 2 MetaData Size
0x10 4 Size of SELF
0x18 2 Unknown 1 SK, 2 SL and Modules, 4 SK Elfs, 6 .selfs, 2 .sdll, 6 .sprx, 6 ShellCore, 6 eboot.bin, 2 sexe
0x1A 2 Unknown Always 0x22
0x20 2 Unknown Always 0x6
0x22 2 Unknown Always 0x13, Except in Secure Modules (0x00)