src/Util/generateRandomUint32.js

/* global crypto */

export function generateRandomUint32 () {
  if (typeof crypto !== 'undefined' && crypto.getRandomValue != null) {
    // browser
    let arr = new Uint32Array(1)
    crypto.getRandomValues(arr)
    return arr[0]
  } else if (typeof crypto !== 'undefined' && crypto.randomBytes != null) {
    // node
    let buf = crypto.randomBytes(4)
    return new Uint32Array(buf.buffer)[0]
  } else {
    return Math.ceil(Math.random() * 0xFFFFFFFF)
  }
}