E4M is an open source encryption software. It has a license that permits free use and redistribution together with source.
The original author no longer distributes E4M, and since the license permits it, I'm making E4M available here.
Download E4M ver 2.02a
Download E4M ver 2.02 sources
Download E4M ver 2.02a source patch (2.02 to 2.02a)
Free Encryption Software, On the Fly Encryption, Public Key Encryption (thefreecountry.com)
The GNU Privacy Guard
This page is copyrighted by me.
The original E4M software is copyrighted by the
author. Download the files for details.