var data = new Uint32Array(1024);

  window.crypto.getRandomValues(data);

  var dataBuffer = new Uint8Array(data);

  data = String.fromCharCode.apply(null, dataBuffer);

  // src: https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/digest

  function hex(buffer) {

    var hexCodes = [];

    var view = new DataView(buffer);

    for (var i = 0; i < view.byteLength; i += 4) {

      // Using getUint32 reduces the number of iterations needed (we process 4 bytes each time)

      var value = view.getUint32(i)

      // toString(16) will give the hex representation of the number without padding

      var stringValue = value.toString(16)

      // We use concatenation and slice for padding

      var padding = '00000000'

      var paddedValue = (padding + stringValue).slice(-padding.length)

      hexCodes.push(paddedValue);

    }

    // Join all the hex strings into one

    return hexCodes.join("");

  }