- Today PlayStation 3 homebrew developer Hykem
(the Demon) made available PSXTract, which is a tool to decrypt / convert PSOne Classics from PSP / PS3 with details below.
Download: PSXTract Tool
(Updated) / psxtract-updated.rar
(Mirror) / psxtract-src.rar
(converted to gcc as compiler, and some fixes) / GIT
From the ReadMe file: PSXTract
Tool to decrypt and convert PSOne Classics from PSP/PS3. Written by Hykem.
This tool allows you to decrypt a PSOne Classics EBOOT.PBP on your PC, using the emulated PSP method. It features a modified version of libkirk's source code to support DES encryption/decryption and the AMCTRL functions.
You may supply a KEYS.BIN file to the tool, but this is not necessary. Using the internal files' hashes, psxtract can calculate the key by itself.
Game file manual decryption is also supported (DOCUMENT.DAT).