If you wish to use an SSL Certificate for your website, so as to protect the payment and login info which users post, you'll need a Certificate Signing Request, or CSR. The Request contains all the info related to the entity that will use the SSL in an encoded form, such as the exact web address for the website, the Business/Organization name, physical and e-mail address. It needs to be sent to a vendor, or Certificate Authority, which reviews the provided information and based on it, issues the SSL certificate. The actual SSL set up requires four different bits of code - the certificate, the CSR, a unique private key that is generated along with the CSR and the SSL vendor private key. An Internet site which has an SSL installed can be loaded with https:// rather than the usual http:// and the info submitted for the CSR will be viewed in standard text format through a web browser.