PS4 veteran developer flat_z has released pkg_pfs_tool, a set of tools that can unpack PKG/PFS Files, build GP4 projects, and generate the required keys for PS4 pkg file manipulation (unpack/repack).
The tool is released in memory of scene dev Maxton, who sadly passed away this year.
pkg_pfs_tool usage
(note: some options might be disabled depending on sourcecode/compilation parameters. See series of #define at the top of main.c)
COMMANDS
-h, --help help
-i, --info ![]()
Show information about image
-l, --list ![]()
List of entries
-u, --unpack ![]()
[file1 file2...] Unpack files from image
-r, --repack [elfs dir] Repack image file (with plaintext elfs)
OPTIONS
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--key-content-id Use keyset of specific content ID
--content-id Replace content ID on repacking
--passcode Use specific passcode
--sealed-key-file Use sealed key file for keys generation
--encdec-tweak-key Use specific AES XTS tweak key for enc/dec
--encdec-data-key Use specific AES XTS data key for enc/dec
--sign-key Use specific HMAC SHA256 key for signing
--sc0-key Use specific Sc0 key for enc/dec
--use-meta-data-file Load GP4 meta data from file
--dump-meta-data-file Save GP4 meta data to file
--pfs-image-data-file Use plain pfs_image.dat as PFS content of PKG file
--generate-gp4 Generate GP4 project from PKG file
--unpack-inner-pfs Unpack inner PFS file from PKG file
--unpack-outer-pfs Unpack outer PFS file from PKG file
--unpack-sc-entries Unpack SC entries from PKG file
--unpack-extra-sc-entries Unpack extra SC entries from PKG file
--use-splitted-files Use splitted PKG chunks
--no-unpack Don't unpack main PFS files from PKG file
--no-signature-check Skip signature checking
--no-icv-check Skip ICV hash checking
--no-hash-recalc Skip recalculation of hashes on repacking
--no-elf-repack Skip ELFs repacking
--dump-sfo Dump SFO structure from PKG file
--dump-playgo Dump Playgo structure from PKG file
--dump-final-keys Dump final keys to use with the tool
--dump-sd-info Dump SD info
--use-random-passcode Use random passcode for GP4 project
--all-compressed Use compression for all files in GP4 project
Download pkg_pfs_tool
Only the source code (no binary release) is available on the developer’s github. You’ll have to compile the binary yourself for your target system.
Source: Flat_z
