The famous Geohot resurfaced today, to release a useful app called dePKG. The app is very useful for devs that are planning to look into Sony’s official firmware files. dePKG is a linux app that will decrypt PKG files (not to be confused with PSN PKG files) that are within PS3UPDAT.PUP files. This will allow devs to take a look at files such as CORE_OS_PACKAGE.pkg, from the convenience of their PC. Previously, the only way to take a look at these files was via graf_chokolo’s method which utilized the PS3. Geohot’s app is ready to be compiled and includes necessary decryption keys.