encryption implement `-p' git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@2002 ec53bebd-3082-4978-b11e-865c3cabbd6b
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1963 ec53bebd-3082-4978-b11e-865c3cabbd6b