GPG passphrase

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Where is configured how long the GPG passphrase is kept in memory in KMail? My computer is in a location that no one else can access (unless my beagle is a lot more computer literate than I think). I'd like to configure gpg for a longer timeframe than it has now. I've checked "Keep passphrase in memory" in the KMail configuration, but I don't see how to configure how long to keep it in memory. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) iD8DBQFAxIXnjeziQOokQnARAhvnAJ0c6iUUg+h+7q4hgoVVbiqK6mioDQCeLrT2 hcdW6xPAp7Zog7lN4Xf/380= =JQQA -----END PGP SIGNATURE-----