If you offer goods and services on your website and you'd like the payment information that clients submit to be secure, you will need an SSL certificate. Secure Sockets Layer is a protocol which encodes the information exchanged between a user and a server, but in order to obtain an SSL, you will need a Certificate Signing Request (CSR). This is Base64 encoded info 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 studies and authorizes the CSR before it gives an SSL certificate that is signed electronically using its private key as an authority. To be able to install an SSL, you'll need a total of four batches of code - the CSR, a Private Key that is made once you generate your Request, the actual certificate and a specific Certificate Authority code, which is unique for every single vendor.