All Frequently Asked Questions
SSL is an encryption protocol for transmitting documents securely over the Internet. It allows for authenticated and encrypted communication between browsers and servers, or between different servers.
Please visit the following links:
http://www.google.com/search?hl=en&lr=&oi=defmore&q=define:SSL
http://www.verisign.com/products-services/security-services/ssl/ssl-information-center/index.html