ffpr/dist/crypt.js

Save editor for games of Final Fantasy Pixel Remaster

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.decrypt = exports.encrypt = void 0;
const crypto_1 = __importDefault(require("crypto"));
const rijndael_js_1 = __importDefault(require("rijndael-js"));
const password = 'TKX73OHHK1qMonoICbpVT0hIDGe7SkW0';
const salt = '71Ba2p0ULBGaE6oJ7TjCqwsls1jBKmRL';
const generator = crypto_1.default.pbkdf2Sync(password, salt, 10, 64, 'sha1');
const key = generator.slice(0, 32);
const iv = generator.slice(32, 64);
async function encrypt(input) {
    const cipher = new rijndael_js_1.default(key, 'cbc');
    const blockSize = 32;
    const padLength = blockSize - (input.length % blockSize);
    const padded = Buffer.concat([input, Buffer.alloc(padLength)]);
    const encrypted = cipher.encrypt(padded, '256', iv);
    return Buffer.from(encrypted);
}
exports.encrypt = encrypt;
async function decrypt(input) {
    const cipher = new rijndael_js_1.default(key, 'cbc');
    const decrypted = Buffer.from(cipher.decrypt(input, '256', iv));
    // remove extra zero padding
    let end = decrypted.length;
    while (end > 0 && decrypted[end - 1] == 0) {
        --end;
    }
    const unpadded = decrypted.slice(0, end + 1);
    return unpadded;
}
exports.decrypt = decrypt;