In case you offer goods and services on your site and you'd like the payment details that people send to be risk-free, you'll need an SSL certificate. Secure Sockets Layer is a protocol that encodes the info exchanged between a user and a server, but to get an SSL, you need a Certificate Signing Request (CSR). This is Base64 encoded information that the SSL service provider will use to issue the certificate. The CSR includes your website address, Business name and Unit, mailing address and e-mail of the entity which will use the certificate. The Certificate Authority evaluates and authorizes the CSR before it gives an SSL certificate that is signed digitally with its private key as an authority. To be able to set up an SSL, you need an overall of four batches of code - the CSR, a Private Key that is created when you generate your Request, the actual certificate and a specific Certificate Authority code, which is unique for each and every vendor.