
With the ever growing community of PS4 Modding, oct0xor brings us the first PS4 Registry Editor which allows us to view the files using a simple tool that he made by reverse-engineering the Registry itself. In its current state you can view the following files;
- /system_data/settings/system.nvs
- /system_data/settings/system.dat
- /system_data/settings/system.idx
- /user/settings/system.eap
- /system_data/settings/system.rec
Within the registry the most important files are system.dat and system.idx with system.dat containing information on entries data and system.dat containing information on every entry and its offset. The files system.eap and system.rec are stored in a obfuscated format which requires you to guess the XOR pattern itself however due to it being XOR'd with 8 bytes there are a lot of null bytes which this makes it a lot easier to guess.


Within the system.eap the RegID's are encrypted along with the data and entries hashed but the RegID's in system.eap and system.rec are encrypted with different keys. It makes you ask the question; Why are these files are obfuscated in the way they are? Well oct0xor believes that the files shouldn't be easily accessible and the files themselves are very sensitive which does make sense after all.

Another thing with the tool is when you are able to find a backdoor which can give you access to other registry's for any non-system processes but for this to work the RegID's should be encrypted in another way. The link for oct0xor's GitHub will be down below which include the source for his Registry tool. Let me know your thoughts down below in the comments and t
thanks for taking the time to read my article, thanks!!

Credits: oct0xor
GitHub
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