Fox Engine File Decryptor E6EFF8A0

A port of the original "MGS V ResDec v1.0" by Sergeanur to C#.
This tool is used to decrypt (and encrypt) files from the Fox Engine.
The encrypted files have the hex header E6,EF,F8,A0.
Used in Metal Gear Solid V: The Phantom Pain, P.T., and probably in other games using the Fox Engine.

Quick Usage Tip:

Drag and drop the file onto the .exe for a quick way to decrypt without using the command line.

Usage:

E6EFF8A0.exe <file> [options]

Options:

• -k <key> Encryption key (decimal or 0x hex). Required for encryption.
• -eX Encryption method (1 or 2). Use -e1 for method 1, -e2 for method 2 (default).
• -vX File version header (1 or 2). Use -v1 for v1 (default), -v2 for v2.
• -i Show only info about file encryption (will not decrypt or encrypt).
• -n Don’t create backups (by default .bak is created).