This section describes the preferences settable in Passwords and Encryption Keys by choosing Edit ▸ Preferences from within Passwords and Encryption Keys.
To create a new keyring, from the menu choose File ▸ New and choose Password Keyring. Enter a name for the new keyring, and press enter.
To change the unlock password of the keyring, first select the appropriate keyring and then press Change Unlock Password button. You will then be prompted to type the old password in the Old password text box, the new password in the New password text box and confirm it in the Confirm password text box. To apply the settings, press Change. If the old password is correct, you will get a status message indicating the success of the operation. If the old password is not correct you will be asked to check its correctness.
To remove a keyring, first select the appropriate keyring and then from the menu choose Edit ▸ Delete.
Keep your and other's keys up to date by syncing keys periodically with remote keyservers. Syncing will make sure that you have the latest signatures made on all of your keys so that the web of trust will be the most useful.
Passwords and Encryption Keys provides support for HKP and LDAP keyservers.
HKP keyservers are ordinary web based keyservers such as the popular hkp://pgp.mit.edu:11371, also accessible at http://pgp.mit.edu.
LDAP keyservers are less common, but use the standard LDAP protocol to serve keys. ldap://keyserver.pgp.com is a good LDAP server.
Key Sharing is provided by DNS-SD, also known as Bonjour or Rendevous. Enabling key sharing will add the local Passwords and Encryption Keys users' public key rings to the remote search dialog. Using these local "key servers" will most likely be faster than accessing remote servers.