title: How to generate a 128-bit long string?
body: <p>Basically, I'm looking for a function to perform the following</p>
  
  <pre><code>generateToken(128)
  </code></pre>
  
  <p>which will return a 128-bit <strong>string</strong> consisting of integers or alphabet characters.</p>
  
  <p>Clarification: From the comments, I had to change the question. Apparently, I am looking for a string that is 16 characters long if it needs to be 128 bits.</p>