If you offer products and services on your website and you would like the payment data that people upload to be risk-free, you'll need an SSL certificate. Secure Sockets Layer is a protocol that encrypts the info exchanged between a user and a web server, but in order to acquire an SSL, you'll need a Certificate Signing Request (CSR). This is Base64 encoded information that the SSL supplier will use to create the certificate. The CSR contains your web address, Business name and Unit, postal address and e-mail of the entity which will use the certificate. The Certificate Authority studies and approves the CSR before it provides an SSL certificate that is signed electronically with its private key as an authority. To install an SSL, you'll need an overall of 4 batches of code - the CSR, a Private Key that is created once you generate the Request, the actual certificate plus a special Certificate Authority code, that's unique for every single vendor.