A StuffIt/Disk Copy 4.2 archive of the two disk set. This was an
encryption application for older Macs running System 6.

If I remember correctly this application could be used to create
encrypted archives and to encrypt/protect an entire hard drive using
DES.

For obvious reasons I do NOT recommend using any full disk
encryption/security with a product this old. I would only try the disk
security on a test Mac or emulator if I didn't care about possibly
losing the drive contents. This is for historical purposes only, and
for anyone who needs to decrypt really old Citadel archives.

Compatibility
Architecture: 68k

Requirements not on the disk.