AEFS

AEFS is an open-source cryptographic filesystem. It allows transparent access to encrypted files stored on any file system. Extended attributes are supported under OS/2.

Links

 * https://nixos.org/~eelco/aefs/aefs021.zip
 * https://nixos.org/~eelco/aefs/aefsdmn-r286.zip - bugfix requires libc062.dll
 * https://github.com/edolstra/aefs