textarea=Encryption is a technology that protects information as it passes through or across a network. Information is encrypted, or scrambled, before it is sent, and decrypted, or unscrambled, when it is received. During transmission, the encrypted information is not meaningful if it is intercepted. In the firewall, encryption is used to provide a secure pathway to network resources from an external location. It also ensures the confidentiality and integrity of the data as it travels from its originator to its destination. Many firewalls handle encryption protocols, such as Secure Socket Layer, or SSL, to establish VPNs.
