Secure Sockets Layer (SSL) is a cryptographic protocol to provide secure communications on the Internet. These protocols provide endpoint authentication and communications privacy over the Internet using cryptography. The protocols allow client/server applications to communicate in a way designed to prevent eavesdropping, tampering, and message forgery.

The SSL protocol runs on layers beneath application protocols such as HTTP, SMTP and NNTP and above the TCP transport protocol, which forms part of the TCP-IP protocol suite. SSL is most commonly used in the HTTPS access method. HTTPS serves to secure World Wide Web pages for applications such as Electronic commerce.

SSL relies on certificates - digital identification cards - and keys. Certificates include the name of the certificate authority that issued the certificate, the name of the entity to which the certificate was issued, the entity's public key, and time stamps that indicate the certificate's expiration date.

A growing number of organizations looking for a fast, secure way to link remote users and business partners are turning toward products and services based on Secure Sockets Layer technology.

The reasons are many: Browser-based SSL alternatives require little or no software on remote PCs, and in most cases any PC with a browser can be used to make the secure connection, as long as the user can authenticate to a central server. And SSL firewall ports that the traffic uses are generally left open, so firewall reconfiguring is usually unnecessary. The idea is that SSL's simplicity translates into an easier installation and long-term cost savings because of simpler ongoing support.

Link3 Technologies Ltd. offers SSL Certificate and SSL VPN solutions from world-leading Certification Authorities like VeriSign. 

Every SSL Certificate is created for a particular server in a specific domain for a verified business entity. Like a passport or a driver’s license, an SSL Certificate is issued by a trusted authority. When the SSL handshake occurs, the browser requires authentication from the server. If the information does not match or the certificate has expired, the browser displays an error message.

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