tweb-i2p/src/helpers/random.ts

/*
 * https://github.com/morethanwords/tweb
 * Copyright (C) 2019-2021 Eduard Kuzmenko
 * https://github.com/morethanwords/tweb/blob/master/LICENSE
 */

const arrays = {
  8: new Uint8Array(1),
  16: new Uint16Array(1),
  32: new Uint32Array(1),
};
export function nextRandomUint(bits: 8 | 16 | 32) {
  const array = arrays[bits];
  crypto.getRandomValues(array);
  return array[0];
}

export function randomLong() {
  return '' + nextRandomUint(32) + nextRandomUint(32);
}