ttlock-sdk-js
Version:
JavaScript port of the TTLock Android SDK
56 lines (55 loc) • 1.82 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.AESUtil = exports.defaultAESKey = void 0;
const crypto_1 = __importDefault(require("crypto"));
/**
* Default encryption key used when the lock is not paired yet
*/
exports.defaultAESKey = Buffer.from([
0x98, 0x76, 0x23, 0xE8,
0xA9, 0x23, 0xA1, 0xBB,
0x3D, 0x9E, 0x7D, 0x03,
0x78, 0x12, 0x45, 0x88
]);
class AESUtil {
static aesEncrypt(source, key) {
if (source.length == 0) {
return Buffer.from([]);
}
if (typeof key == "undefined") {
key = exports.defaultAESKey;
}
if (key.length != 16) {
throw new Error("Invalid key size: " + key.length);
}
const cipher = crypto_1.default.createCipheriv('aes-128-cbc', key, key);
let encrypted = cipher.update(source);
encrypted = Buffer.concat([encrypted, cipher.final()]);
return encrypted;
}
static aesDecrypt(source, key) {
if (source.length == 0) {
return Buffer.from([]);
}
if (typeof key == "undefined") {
key = exports.defaultAESKey;
}
if (key.length != 16) {
throw new Error("Invalid key size: " + key.length);
}
const cipher = crypto_1.default.createDecipheriv('aes-128-cbc', key, key);
try {
let decrypted = cipher.update(source);
decrypted = Buffer.concat([decrypted, cipher.final()]);
return decrypted;
}
catch (error) {
console.error(error);
throw new Error("Decryption failed");
}
}
}
exports.AESUtil = AESUtil;