You can easily dump your console's unique EID0 root key (ERK) . Backing this up to a flash drive on your rightmost USB port ensures that if your hard drive ever corrupts, you can still decrypt and rescue your data on a PC.
The primary function of the suite revolves around "resigning" data. The PlayStation 3 relies on strict cryptographic security keys to verify if a game, save file, or application is authorized to run. When developers create homebrew software—or when players want to use mod menus and region-free backups—the console's security layer will naturally reject these files. The Resigner v2.0 patches these assets with compatible digital signatures, making them instantly recognizable by custom or hybrid system software. Core Features and Capabilities ps3 cfw tools and resigner v20
Version 20 solves these issues: