key.
File bug against enigmail about lack of ability to create subkeys.
+
+Priviledge separation: monkeysphere user to handle authn keyring and
+ generate authorized_keys file (which would be moved into place by
+ root). Host keyring would be owned by root.
+
+Check permissions of authorized_user_ids file to be writable only by
+ user and root (same as authorized_keys)
+
+Improve function that sets owner trust for keys in server keychain.