There is a PGG backend using EasyPG called pgg-epg.el. However,
pgg-epg.el provides no more additional features than pgg-gpg.el,
-because the PGG API is restricted so that it supports old PGP 2.x/5.x.
+because PGG's API is restricted so that it supports old PGP 2.x/5.x.