zigbee-herdsman/src/adapter/ezsp/driver/utils/index.ts

An open source ZigBee gateway solution with node.js.

/* v8 ignore start */

import {randomBytes} from "node:crypto";

import {EmberEUI64, EmberInitialSecurityBitmask} from "../types/named";
import {EmberInitialSecurityState, EmberKeyData} from "../types/struct";
import crc16ccitt from "./crc16ccitt";

if (!Symbol.asyncIterator) {
    // biome-ignore lint/suspicious/noExplicitAny: API
    (<any>Symbol).asyncIterator = Symbol.for("Symbol.asyncIterator");
}

function emberSecurity(networkKey: Buffer): EmberInitialSecurityState {
    const isc: EmberInitialSecurityState = new EmberInitialSecurityState();
    isc.bitmask =
        EmberInitialSecurityBitmask.HAVE_PRECONFIGURED_KEY |
        EmberInitialSecurityBitmask.TRUST_CENTER_GLOBAL_LINK_KEY |
        EmberInitialSecurityBitmask.HAVE_NETWORK_KEY |
        //EmberInitialSecurityBitmask.PRECONFIGURED_NETWORK_KEY_MODE |
        EmberInitialSecurityBitmask.REQUIRE_ENCRYPTED_KEY |
        EmberInitialSecurityBitmask.TRUST_CENTER_USES_HASHED_LINK_KEY;
    isc.preconfiguredKey = new EmberKeyData();
    isc.preconfiguredKey.contents = randomBytes(16);
    isc.networkKey = new EmberKeyData();
    isc.networkKey.contents = networkKey;
    isc.networkKeySequenceNumber = 0;
    isc.preconfiguredTrustCenterEui64 = new EmberEUI64([0, 0, 0, 0, 0, 0, 0, 0]);
    return isc;
}

export {crc16ccitt, emberSecurity};