maner@bgsuvax.UUCP (Walter Maner) (09/23/87)
We would like to be able to distribute disks to our microcomputer labs with
specific files protected against copying. I am familiar with several
protection schemes which lock the entire disk. We require a method which
can prevent unauthorized copying on a file by file basis. Any suggestions
would be welcome.
We need solutions for both the IBM and the Mac families. Thanks in advance.
--
CSNet : maner@research1.bgsu.edu | CS Dept 419/372-2337
UUCP : {cbatt,cbosgd}!osu-cis!bgsuvax!maner | BGSU
Generic : maner%research1.bgsu.edu@relay.cs.net | Bowling Green, OH 43403
Opinion : If you are married, you deserve a MARRIAGE ENCOUNTER weekend!mcdonald@uxe.cso.uiuc.edu (09/25/87)
>/* ---------- "File-wise Copy Protection for Labs" ---------- */ >We would like to be able to distribute disks to our microcomputer labs with >specific files protected against copying. I am familiar with several This CANNOT be done! If a disk can be read, it can be copied! The worst possibility is that you might need a $100 hardware addon. Even the disks with laser damage can be copied (complete with laser damage; you just need to get the laser, which probably exist around any big university.) Even trying this in an academic environment is simply am invitation to students to spend all their time breaking your scheme. You could try to encrypt your files, but then someone would only have to copy the decryptation program. If someone tried it around here, someone else would spend a couple of hours of Cray time breaking the code. Doug McDonald University of Illinois