SL functions around a cryptographic system which uses three keys to set up the SSL connection: public, private, and session keys. Anything encrypted by using the public key can only be decrypted with the private key, and vice versa. SSL Certificate will contain the company name, address, city, state, country, domain name, expiration date of the Certificate and details of the Certification Authority responsible for issuing the Certificate. When a browser connects to a secure site, it retrieves the website's SSL Certificate that authenticates that it has not expired, and that it has been issued by a Certification Authority the browser trusts. If it fails on any of these checks, the browser displays a warning message to the end user, letting them know that the site is not secured by SSL. Many websites use the protocol to collect confidential user information, including credit card numbers. Most web browsers support SSL. SSL connection URL starts with 'https:' instead of 'http:'. The complexities of the SSL protocol remain invisible to the customers. The lock icon in the lower right-hand corner in the browser displays the SSL Certificate and when the icon is clicked, it displays the whole description about the Certificate.