Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!uwm.edu!src.honeywell.com!msi.umn.edu!noc.MR.NET!uc!apctrc!voyager!hgo7!zfgo01
From: zfgo01@hgo7.hou.amoco.com (F. G. Oakes)
Newsgroups: comp.unix.questions
Subject: Re: encrypt a directory
Message-ID: <zfgo01.675994043@hgo7>
Date: 4 Jun 91 00:07:23 GMT
References: <1991Jun3.181239.283@csn.org>
Sender: news@hou.amoco.com
Organization: Amoco
Lines: 2

might be a bit kludgy, but what comes to mind is to archive it ( the directory)
into a file, encrypt the file, and remove the directory and its files.