A utility to invoke the PS4 kernel to decrypt the contents of an update file.
The default (hardcoded) operation is to decrypt
This will output a number of files (depending if a normal or a recovery update):
These decrypted updates can then be unpacked using pup_unpack.
You will probably need my fork of PS4-SDK that has my changes to libPS4 to build.
The PS4 will refuse to decrypt updates in some cases:
- Versions older than the installed version (for the most part, there's exceptions for things like beta versions).
- Versions for a different product code (retail cannot decrypt test or debug updates).