title: Need for SSL in Tor?
body: <p>Some time ago, I read about <a href="http://www.makeuseof.com/tag/can-officially-browse-facebook-tor/" rel="nofollow">Facebook being accessible over Tor</a> and I couldn't ignore that their official URL <a href="https://facebookcorewwwi.onion/" rel="nofollow">https://facebookcorewwwi.onion/</a> not only shows HTTPS but a valid certificate issued for a .onion domain (actually the first in history).</p>
  
  <p>Then the question came: given the nature of the Tor protocol, encrypting peer-to-peer communication, <strong>why</strong> using HTTPS? What advantages does it add to plain HTTP?</p>
  
  <p>I'll share my conclusions in the answer</p>