Configure SSL Decryption Policies
You can use SSL decryption policies to turn encrypted traffic into plain text traffic, so that you can then apply URL filtering, intrusion and malware control, and other services that require deep packet inspection. If your policies allow the traffic, the traffic is re-encrypted before it leaves the device.
The SSL decryption policy applies to encrypted traffic only. No unencrypted connections are evaluated against SSL decryption rules.
Caution | Keep in mind that decrypting and then re-encrypting traffic adds a processing load on the device, which will reduce overall system performance. |
Note | VPN tunnels are decrypted before the SSL decryption policy is evaluated, so the policy never applies to the tunnel itself. However, any encrypted connections within the tunnel are subject to evaluation by the SSL decryption policy. |
The following procedure explains how to configure the SSL decryption policy. For an explanation of the end-to-end process of creating and managing SSL decryption, see How to Implement and Maintain the SSL Decryption Policy.