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CD School House - Education and Games (10.0) - Wayzata Technology (1995).iso
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CIPHER04
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CIPHER.DOC
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Text File
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1992-10-13
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4KB
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99 lines
MCipher SIMPLE & FAST! (c)
Version .04b
Requirements:
This program requires at least an 80286 with a couple of k free of
memory. In other words it will run on just about any 100% IBM
compatible system. I've tested it on several computers and the only one
it crashed was an old Packard Bell. So if you're out of the computer
stone age, you're good to go. 8088 support will be available on future
versions. (ie stay tuned)
What it does:
MCipher is a simple encryption package that I put out because it's what I
wanted and I couldn't find one that someone else had written. Sure, I
could find encryption packages, but they were all a LOT more than I
needed. MCipher will take any straight ASCII text file and encrypt it
into a straight ASCII text file (of course you won't be able to read the
encrypted version). As long as the original doesn't have long lines
(longer than 80 characters) you shouldn't have ANY problem sending
encrypted ASCII files over the modem. This ability gives you the power
and convenience of truly private email--something that's become very
scarce in this day and age. (More info. on email implementation is
provided in the file 'EMAIL.USE' and should have come with your MCipher
package.)
Usage:
MCipher is *very,very* easy to use. It's all done via a command line
with a couple of simple switches...
cipher (e/d) (target) (output) (p=<password>)
| | | | |
Execute cipher-------------- | | | |
Choose encrypt or decrypt----------- | | |
Target file (See note)----------------------- | |
Output file (See note)---------------------------------- |
Password---------------------------------------------------------------
*Note: When encrypting a file, the target is the straight ASCII text
file you want encrypted while the output file is the name of the
file to be created to store the encrypted version. When decrypting,
the target is the file you want to decrypt while the output file is
the new readable ASCII textfile you want the decrypted information
to be stored in (did ya get that?)
Example: cipher e readme readme.sec p=rowboat
This would execute MCipher in the encrypt mode. It would tell it to
encrypted the text file 'readme' into 'readme.sec' using the password of
'rowboat'.
A note on passwords:
Unlike the older versions, passwords are NOT case sensitive. That means
that 'rowboat' and 'ROWBOAT' are equal and encrypting a file with either
word produces the same result and can be decrypted by either word. The
old 7 letter maximum has bee removed--a password can now be AS LONG as you
like. The longer and more unique the password the greater the
security!!! (A password like 'a;kdjfafk$$' is much more secure than one
like 'access').
Use in email:
Instructions for use as an email encrypter are provided in the included
file 'EMAIL.USE'
A note on file extensions:
You don't HAVE to put extensions on your files unless you want to.
MCipher will assume the following:
A file to be encrypted (the "target") is a '.TXT' file.
A file to be decrypted (the "target") is a '.CIP' file.
A file to have encrypted info. written to it (the "output file")
is a '.CIP' file.
A file to have decrypted info. written to it (the "output file")
is a '.OUT' file.
Example:
cipher e readme.txt readme.cip p=rowboat
does the same thing as:
cipher e readme readme p=rowboat
-------------------------------------------------------------------------------
THE AUTHOR IS NOT RESPONSIBLE FOR ANY DAMAGE CAUSED BY THE USE OF THIS
PROGRAM. (I have tested it and it has run flawlessly on many IBM
machines.)
I ASK THAT IF YOU FIND THE PROGRAM USEFUL AND USE IT FOR MORE THAN 10
DAYS THAT YOU contact me on my BBS (804) 285-3388 or on the Blue Ridge
Express BBS (804) 790-1675 and leave me a message.
Note: I wish someone who KNEW something about writing documentation
would offer to help me out (hint,hint).
----
Thanks,
Marshall Camp