In case you offer goods and services on your website and you would like the payment data that clients send to be protected, you need an SSL certificate. Secure Sockets Layer is a protocol that encodes the information exchanged between a user and a web server, but to get an SSL, you'll need a Certificate Signing Request (CSR). This is Base64 encoded information that the SSL service provider will use to create the certificate. The CSR features the website address, Business name and Unit, postal address and email of the entity that will use the certificate. The Certificate Authority evaluates and approves the CSR before it issues an SSL certificate that is signed in an electronic format using its private key as an authority. To install an SSL, you will need a total of four batches of code - the CSR, a Private Key that is created after you generate your Request, the actual certificate and a special Certificate Authority code, which is unique for each vendor.