aes256key.js

let aes256key: ?Array<number>;

sha256([brand, deviceId, ...otherIds].join('')).then(
  (hash: string) => {
    aes256key = Array.from(
      Array.from(hash)
        .map((c, i) => (i % 2 ? c : null))
        .filter(Boolean)
        .map(c => c.charCodeAt(0))
    );
  }
);