In case you offer services and goods on your website and you'd like the payment data that people upload to be protected, you should use an SSL certificate. Secure Sockets Layer is a protocol that encrypts the data exchanged between a user and a server, but in order to get an SSL, you need a Certificate Signing Request (CSR). This is Base64 encoded info that the SSL service provider will use to issue the certificate. The CSR includes the website address, Business name and Unit, postal address and email of the organization which will use the certificate. The Certificate Authority studies and approves the CSR before it provides an SSL certificate which is signed digitally with its private key as an authority. To set up an SSL, you will need a total of four batches of code - the CSR, a Private Key that is made after you generate the Request, the actual certificate along with a specific Certificate Authority code, that's unique for every single vendor.