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Encryption

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There are preset rules for the encryption applications:

PGP Keys

PGP Keys HTTP connection

Protocol: TCP
Direction: Outbound
Remote Port(s): HTTP (80), 81-83, HTTPS (443), SOCKS (1080), 3128, 8080, 8088, 11523
Action: Allow It

What it's for

This rule is used by PGP keys to send HTTP (Hyper Text Transfer Protocol) requests. This is the only port you really need for browsing the Internet, ports 81, 82, 83 are auxiliary web browsing ports and are rarely used. HTTPS (Hyper Text Transfer Protocol over Secure Socket Layer (SSL)) is used for secure sites. SOCKS is only needed by people using a SOCKS proxy server. 3128, 8080, and 8088 are common ports that proxy servers use. 11523 is used by AOL's browser.

To optimize

Remove the remote ports: 81, 82, 83 unless you know that you need them. If you don't use a SOCKS proxy server remove SOCKS. If you don't use a remote or local proxy remove 3128, 8080 and 8088. Most people can just remove all ports except for HTTP. If you don't use AOL's browser remove 11523.
More about HTTP, HTTPS, SOCKS, PROXY
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PGP Keys Server connection

Protocol: TCP
Direction: Outbound
Remote Port(s): 11370-11371
Action: Allow It

What it's for

This rule is used for sending and retrieving keys from a key server.

To optimize

You can specify what key server to use as a 'Remote Host' Event
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PGP Keys LDAP connection

Protocol: TCP
Direction: Outbound
Remote Port(s): LDAP (389)
Action: Allow It

What it's for

In e-mail clients this rule is used for searching anonymous LDAP (Lightweight Directory Access Protocol) servers for e-mail addresses. I'm not sure but I think it might be for looking for PGP keys based on e-mail address.

To optimize

You can specify what LDAP server to use as as a 'Remote Host' Event.
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This is an unofficial guide, the information expressed here may differ from Agnitum's. There is a support forum (no longer run by Agnitum, but by users) if you need more help this is a good place to start. Where information here conflicts with what Agnitum have told you always go with the information given to you by Agnitum.

Guide/site and images ©Stephen Cox