PSVita NPDRM Decryptor

Features

Straightforward GUI to decrypt NPDRM protected apps/patches/addcont:
- Easier modding
- Allows all apps to run on all firmware versions
- Removes the need of plugins like NoNpDrm
- Full control over the content you own

Software Requirements

Microsoft Windows 7 or later (x64)
.NET Framework 4.8.1
(Optional) "TrialPatch" user plugin to bypass game trials (e.g. Rayman Legends, FEZ)
(Optional) "rePatch-reLoaded" kernel plugin to install patches & addcont without merging

Usage

If you have a PKG file and not a NPDRM app in folder format you'll first need to extract the PKG with "pkg2zip.exe" or similar by providing the correct zRIF.

Use the + button or drag & drop encrypted folders, select the output directory and click the blue arrow
Adjust the options in the checkboxes to your liking
Remove highlighted folders with the X button

Follow the Input Folder Search Structure section below to setup your input folders correctly with patches and addcont.

The program will search for patches/addcont only when decrypting the main app with the specified folder setup.

Patches and additional content can still be decrypted separately.

Installing decrypted applications

App (WITHOUT head.bin)
- Copy the app's VPK/folder to the PSVita (NOT inside ux0:app)
- (VPK) Open VitaShell and install the package
- (Folder) Open VitaShell and press △ on the app folder and choose More -> Install folder
- Accept extended permissions
App (WITH head.bin)
- Copy the app folder to ux0:app/... (where you would normally place NPDRM content)
- Return to the home screen in VitaShell (where it shows os0:, ur0:, ux0: etc.), press △ and choose Refresh LiveArea™
Patch
- Merge with main app or use rePatch
Additional content
- Use rePatch

For now app installation must be done through VitaShell because we need to generate a fake head.bin to display the app in the livearea.

Installing decrypted applications (rePatch)

App - Install as described before
Patch/Additional content
- rePatch-reDux0 Wiki

Input Folder Search Structure

├───addcont
│   └───TITLE_ID
│   │   └───DLC_FOLDER
├───patch
│   └───TITLE_ID
├───app (any name or TITLE_ID)
│   └───eboot.bin
│   └───...

Troubleshooting

"My app says it's a trial"
- Install the "TrialPatch" plugin.
"DLCs don't work"
- Install the "rePatch-reLoaded" plugin.
"I can't install the decrypted app, VitaShell throws and error"
- Delete the NPDRM version. If that doesn't work, manually delete the folders with the TitleID of the game in ux0:app, ux0:patch, ux0:addcont, ux0:appmeta and reboot.
  Also check if you have the head.bin file inside app\sce_sys\package and follow the instructions decribed above.
"The program doesn't recognize a patch folder"
- If you are trying to decrypt a single patch without the main app in the structure described above, you'll need to copy the original work.bin of the main app (app\sce_sys\package\work.bin) and place it inside the patch folder: patchTitleID\sce_sys\package\work.bin. Additional contents have their own work.bin, so you don't need the original one for DLC decryption.
"Some apps decrypt incorrectly / don't function properly"
- Open an issue and I'll look into it, some apps are known to cause issues.

Changelog

v1.0.1

Improved UI
Added options to output rePatch folders, copy original head.bin to the decrypted app and show terminal during decryption.
Miscellaneous improvements

SuleMareVientu/PSVitaNPDRMDecryptor