rpgm-asset-decrypter-lib

A library for decrypting/encrypting RPG Maker MV/MZ audio and image assets.

Used in rpgm-asset-decrypter-rs CLI tool.

Installation

cargo add rpgm-asset-decrypter-lib

Usage

Decrypt:

use rpgm_asset_decrypter_lib::Decrypter;
use std::fs::{read, write};

let mut decrypter = Decrypter::new();
let file = "./picture.rpgmvp";
let buf = read(file).unwrap();

// For images, decrypter automatically determines the key.
// For audio, read `encryptionKey` property from `System.json` and pass it to `Decrypter::set_key_from_str` function.
let decrypted = decrypter.decrypt(&buf);
write("./decrypted-pitcure.png", decrypted).unwrap();

Encrypt:

use rpgm_asset_decrypter_lib::{Decrypter, DEFAULT_KEY};
use std::fs::{read, write};

// When encrypting, decrypter requires a key.
// It can be read from `encryptionKey` property in `System.json`.
let mut decrypter = Decrypter::new();

// The library provides default key, which most games use by default.
// It might not work for every game, so if you get bad output, grab the right one from `System.json`.
decrypter.set_key_from_str(DEFAULT_KEY).unwrap();
let file = "./picture.png";
let buf = read(file).unwrap();

let encrypted = decrypter.encrypt(&buf).unwrap();
write("./decrypted-pitcure.rpgmvp", encrypted).unwrap();

License

Project is licensed under WTFPL.