What is Let’s Encrypt?
Basically, it’s a way to get a quick x509 certificate for your server without knowing much about what is a x509 certificate:
Let’s Encrypt Overview – http://www.cryptologie.net/article/274/lets-encrypt-overview/
If this works out it will go skiing way to securing all web traffic. The Let’s Encrypt site is at https://letsencrypt.org/ and the code is open source at https://github.com/letsencrypt.