title: What cryptographically secure options are there for creating random numbers in WinRT?
body: <p>Ordinarily I'd do something like this:</p>
  
  <pre><code>byte[] randomBytes = new byte[bytes];
  string randomString = Convert.ToBase64String(new RNGCryptoServiceProvider().GetBytes(randomBytes));
  </code></pre>
  
  <p>However there's no RNGCryptoServiceProvider available.</p>
  
  <p>Are there any secure random alternatives available?</p>
  
  <p>Thanks,</p>