TLS (Transport Layer Security), widely known as SSL (Secure Sockets Layer), is the most well known method to secure your web site. But it can also be used for much more.
If you want to learn how TLS works, best practices for its use and the various applications in which it can secure business computing, you can get it from this white paper. This guide is dedicated for IT professional and is published for free by VeriSign Authentication Services (now a part of Symantec Corp).
Free Request Best Practices and Applications of TLS/SSL White Paper
