SCRAM 1.0
                         Total Disk Security
                       Imagination Enterprises
                         Freely Distributable

Introduction
      SCRAM 1.0 is a memory resident program that provides
security to any floppy disk drive.  Once SCRAM is loaded, all data
(except for root directory file names) is automatically scrambled before
being written the selected floppy disk.  As long as SCRAM remains in memory,
the data is automatically unscrambled whenever a program loads it back in.
Without SCRAM in memory, and without the user chosen encryption key, files
cannot be used on the encrypted disk.  Since SCRAM runs in the background,
you will not have to get out a special program over and over again to
encrypt and decrypt your information.  Anyone trying to read you data
without your secret key will just get a scrambled mess!
     SCRAM has a special feature.  If someone tries to copy your data to
his own disk without SCRAM being installed, he will still get garbled
data even if he finds out your key.  The exact location of the data on
your disk must be duplicated, since this location automatically becomes
part of the encryption key.


Using SCRAM
      To use SCRAM, insert a floppy disk into a disk drive and type:

      SCRAM <Return>

You will be asked for the letter that identifies the floppy drive you wish
to protect.  You can answer A, B, C or D.  Remeber that SCRAM only works
with floppy drives.  Do not try to install it for hard disks!

     You will next be asked to type your secret encryption key, which must
be any eight characters.  Carefully choose your key.  If your forget it, you
will not be able to recover encrypted data.  Also remember that case matters.
Upper case characters are different from lower case characters.  The key
will not appear on the screen, in case someone is looking over your shoulder.
Instead, stars will be displayed for each character you type.  If you
goof, just uninstall SCRAM as described below, and then reinstall
it again.

     After typing the key, SCRAM will be ready to use.  Until SCRAM is
uninstalled, all data written to the selected disk will be encrypted.
Also, any data read from the disk will be decrypted.  This includes any
programs, so do not run any programs from the selected drive.  Instead,
use a hard disk or other non-encrypted drive to start your programs.  I
usually use drive B for my encrypted drive, and leave unprotected to
run programs from.

     To copy a non encrypted file to the encrypted drive, just put
the file to copy in any other drive, then use the regular DOS copy
command to copy it to the protected drive.  Files copied from the
protected drive to a non-protected drive will be automatically
decrypted.  While SCRAM is installed, any program that put data on
the protected drive will automatically have the data encrypted and
decrypted as needed.


WARNING!!!
     Do not try to run programs from the protected drive.  SCRAM will
assume that these programs are encrypted data, and un-encrypt them.  This
will have unpredictable results, and can even lock up your machine or
result in lost data!  Run programs only from non-protected drives.


How to keep even your file names secret
     Want to keep even your file names secret?  Her is how.  First, load
in SCRAM as described above.  Now, create a subdirectory.  For example,
if you want to keep your files under the subdirectory named SECRET, you would
type:

    MD \SECRET <Return>

Now change to this subdirectory by typing:

    CD \SECRET <Return>

Now any files you put on the protected disk will go in this subdirectory.
Since subdirectories look like data to SCRAM, the file names will be encrypted
as well!


Security
     Remember that as long as SCRAM is in memory, anyone can read the data.
To keep this from happening, either remove SCRAM as described below, or
turn off your machine.  The best security is to just take your data disks
with you.


Uninstalling SCRAM
     To uninstall SCRAM, just run SCRAM again from any non-protected
drive.  Just follow the instructions above for installing SCRAM.  A
message will be printed reminding you that your drives are no
longer secure.


User Support
     If you find SCRAM useful, send all of your money to the following
address.  Seriously, if you send $10 to the address below, an updated
copy of SCRAM will be sent to you, along with information on other
user supported programs available from Imagination Enterprises.
     Send to:

               Imagination Enterprises
               223 Arbor Lane
               Bryans Road, MD  20616

Please feel free to distribute this program anywhere, as long as this
instruction file remains with the program.