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It's not easy to tell, how are they addressing the lack of decryption keys, if at all? I know you can treat a hacked PS4 as a decryption oracle but that's sort of a fundamental limitation to emulation, not having the decryption keys for executables.


You provide the emulator with decrypted modules/libraries (dumped from a hacked PS4) that originally reside in the encrypted firmware .PUP.

I'm associated with PS4 emulation and the project, any other questions welcome.


I've heard rumors of a SAMU exploit being released as the PS5 is released, which would make this job way easier. You heard anything similar?


I'll believe it when I see it :)

Anyway, PS4 emulation isn't very affected by this. Only thing it would benefit from would be that you'd be able to decrypt the firmware (and therefore run the emulator) without needing a hacked PS4 (like RPCS3 does with PS3 firmware).

Historically most people just pirate the firmware anyway (see: PS1 BIOS) so even there realistically it doesn't affect things that much. I consider this is a long-term, nice-to-have feature.


Are the game encrypted or signed?


Both games and the firmware are encrypted with several layers of encryption.


Both




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